'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var motionDom = require('motion-dom');
var motionUtils = require('motion-utils');
var jsxRuntime = require('react/jsx-runtime');
var react = require('react');

function isAnimationControls(v) {
    return (v !== null &&
        typeof v === "object" &&
        typeof v.start === "function");
}

const isKeyframesTarget = (v) => {
    return Array.isArray(v);
};

function shallowCompare(next, prev) {
    if (!Array.isArray(prev))
        return false;
    const prevLength = prev.length;
    if (prevLength !== next.length)
        return false;
    for (let i = 0; i < prevLength; i++) {
        if (prev[i] !== next[i])
            return false;
    }
    return true;
}

/**
 * Decides if the supplied variable is variant label
 */
function isVariantLabel(v) {
    return typeof v === "string" || Array.isArray(v);
}

function getValueState(visualElement) {
    const state = [{}, {}];
    visualElement === null || visualElement === void 0 ? void 0 : visualElement.values.forEach((value, key) => {
        state[0][key] = value.get();
        state[1][key] = value.getVelocity();
    });
    return state;
}
function resolveVariantFromProps(props, definition, custom, visualElement) {
    /**
     * If the variant definition is a function, resolve.
     */
    if (typeof definition === "function") {
        const [current, velocity] = getValueState(visualElement);
        definition = definition(custom !== undefined ? custom : props.custom, current, velocity);
    }
    /**
     * If the variant definition is a variant label, or
     * the function returned a variant label, resolve.
     */
    if (typeof definition === "string") {
        definition = props.variants && props.variants[definition];
    }
    /**
     * At this point we've resolved both functions and variant labels,
     * but the resolved variant label might itself have been a function.
     * If so, resolve. This can only have returned a valid target object.
     */
    if (typeof definition === "function") {
        const [current, velocity] = getValueState(visualElement);
        definition = definition(custom !== undefined ? custom : props.custom, current, velocity);
    }
    return definition;
}

function resolveVariant(visualElement, definition, custom) {
    const props = visualElement.getProps();
    return resolveVariantFromProps(props, definition, custom !== undefined ? custom : props.custom, visualElement);
}

const variantPriorityOrder = [
    "animate",
    "whileInView",
    "whileFocus",
    "whileHover",
    "whileTap",
    "whileDrag",
    "exit",
];
const variantProps = ["initial", ...variantPriorityOrder];

const MotionGlobalConfig = {
    skipAnimations: false,
    useManualTiming: false,
};

function createRenderStep(runNextFrame) {
    /**
     * We create and reuse two queues, one to queue jobs for the current frame
     * and one for the next. We reuse to avoid triggering GC after x frames.
     */
    let thisFrame = new Set();
    let nextFrame = new Set();
    /**
     * Track whether we're currently processing jobs in this step. This way
     * we can decide whether to schedule new jobs for this frame or next.
     */
    let isProcessing = false;
    let flushNextFrame = false;
    /**
     * A set of processes which were marked keepAlive when scheduled.
     */
    const toKeepAlive = new WeakSet();
    let latestFrameData = {
        delta: 0.0,
        timestamp: 0.0,
        isProcessing: false,
    };
    function triggerCallback(callback) {
        if (toKeepAlive.has(callback)) {
            step.schedule(callback);
            runNextFrame();
        }
        callback(latestFrameData);
    }
    const step = {
        /**
         * Schedule a process to run on the next frame.
         */
        schedule: (callback, keepAlive = false, immediate = false) => {
            const addToCurrentFrame = immediate && isProcessing;
            const queue = addToCurrentFrame ? thisFrame : nextFrame;
            if (keepAlive)
                toKeepAlive.add(callback);
            if (!queue.has(callback))
                queue.add(callback);
            return callback;
        },
        /**
         * Cancel the provided callback from running on the next frame.
         */
        cancel: (callback) => {
            nextFrame.delete(callback);
            toKeepAlive.delete(callback);
        },
        /**
         * Execute all schedule callbacks.
         */
        process: (frameData) => {
            latestFrameData = frameData;
            /**
             * If we're already processing we've probably been triggered by a flushSync
             * inside an existing process. Instead of executing, mark flushNextFrame
             * as true and ensure we flush the following frame at the end of this one.
             */
            if (isProcessing) {
                flushNextFrame = true;
                return;
            }
            isProcessing = true;
            [thisFrame, nextFrame] = [nextFrame, thisFrame];
            // Execute this frame
            thisFrame.forEach(triggerCallback);
            // Clear the frame so no callbacks remain. This is to avoid
            // memory leaks should this render step not run for a while.
            thisFrame.clear();
            isProcessing = false;
            if (flushNextFrame) {
                flushNextFrame = false;
                step.process(frameData);
            }
        },
    };
    return step;
}

const stepsOrder = [
    "read", // Read
    "resolveKeyframes", // Write/Read/Write/Read
    "update", // Compute
    "preRender", // Compute
    "render", // Write
    "postRender", // Compute
];
const maxElapsed = 40;
function createRenderBatcher(scheduleNextBatch, allowKeepAlive) {
    let runNextFrame = false;
    let useDefaultElapsed = true;
    const state = {
        delta: 0.0,
        timestamp: 0.0,
        isProcessing: false,
    };
    const flagRunNextFrame = () => (runNextFrame = true);
    const steps = stepsOrder.reduce((acc, key) => {
        acc[key] = createRenderStep(flagRunNextFrame);
        return acc;
    }, {});
    const { read, resolveKeyframes, update, preRender, render, postRender } = steps;
    const processBatch = () => {
        const timestamp = performance.now();
        runNextFrame = false;
        state.delta = useDefaultElapsed
            ? 1000 / 60
            : Math.max(Math.min(timestamp - state.timestamp, maxElapsed), 1);
        state.timestamp = timestamp;
        state.isProcessing = true;
        // Unrolled render loop for better per-frame performance
        read.process(state);
        resolveKeyframes.process(state);
        update.process(state);
        preRender.process(state);
        render.process(state);
        postRender.process(state);
        state.isProcessing = false;
        if (runNextFrame && allowKeepAlive) {
            useDefaultElapsed = false;
            scheduleNextBatch(processBatch);
        }
    };
    const wake = () => {
        runNextFrame = true;
        useDefaultElapsed = true;
        if (!state.isProcessing) {
            scheduleNextBatch(processBatch);
        }
    };
    const schedule = stepsOrder.reduce((acc, key) => {
        const step = steps[key];
        acc[key] = (process, keepAlive = false, immediate = false) => {
            if (!runNextFrame)
                wake();
            return step.schedule(process, keepAlive, immediate);
        };
        return acc;
    }, {});
    const cancel = (process) => {
        for (let i = 0; i < stepsOrder.length; i++) {
            steps[stepsOrder[i]].cancel(process);
        }
    };
    return { schedule, cancel, state, steps };
}

const { schedule: frame, cancel: cancelFrame, state: frameData, steps: frameSteps, } = createRenderBatcher(typeof requestAnimationFrame !== "undefined" ? requestAnimationFrame : motionUtils.noop, true);

/**
 * Generate a list of every possible transform key.
 */
const transformPropOrder = [
    "transformPerspective",
    "x",
    "y",
    "z",
    "translateX",
    "translateY",
    "translateZ",
    "scale",
    "scaleX",
    "scaleY",
    "rotate",
    "rotateX",
    "rotateY",
    "rotateZ",
    "skew",
    "skewX",
    "skewY",
];
/**
 * A quick lookup for transform props.
 */
const transformProps = new Set(transformPropOrder);

const positionalKeys = new Set([
    "width",
    "height",
    "top",
    "left",
    "right",
    "bottom",
    ...transformPropOrder,
]);

const isCustomValue = (v) => {
    return Boolean(v && typeof v === "object" && v.mix && v.toValue);
};
const resolveFinalValueInKeyframes = (v) => {
    // TODO maybe throw if v.length - 1 is placeholder token?
    return isKeyframesTarget(v) ? v[v.length - 1] || 0 : v;
};

let now;
function clearTime() {
    now = undefined;
}
/**
 * An eventloop-synchronous alternative to performance.now().
 *
 * Ensures that time measurements remain consistent within a synchronous context.
 * Usually calling performance.now() twice within the same synchronous context
 * will return different values which isn't useful for animations when we're usually
 * trying to sync animations to the same frame.
 */
const time = {
    now: () => {
        if (now === undefined) {
            time.set(frameData.isProcessing || MotionGlobalConfig.useManualTiming
                ? frameData.timestamp
                : performance.now());
        }
        return now;
    },
    set: (newTime) => {
        now = newTime;
        queueMicrotask(clearTime);
    },
};

function addUniqueItem(arr, item) {
    if (arr.indexOf(item) === -1)
        arr.push(item);
}
function removeItem(arr, item) {
    const index = arr.indexOf(item);
    if (index > -1)
        arr.splice(index, 1);
}

class SubscriptionManager {
    constructor() {
        this.subscriptions = [];
    }
    add(handler) {
        addUniqueItem(this.subscriptions, handler);
        return () => removeItem(this.subscriptions, handler);
    }
    notify(a, b, c) {
        const numSubscriptions = this.subscriptions.length;
        if (!numSubscriptions)
            return;
        if (numSubscriptions === 1) {
            /**
             * If there's only a single handler we can just call it without invoking a loop.
             */
            this.subscriptions[0](a, b, c);
        }
        else {
            for (let i = 0; i < numSubscriptions; i++) {
                /**
                 * Check whether the handler exists before firing as it's possible
                 * the subscriptions were modified during this loop running.
                 */
                const handler = this.subscriptions[i];
                handler && handler(a, b, c);
            }
        }
    }
    getSize() {
        return this.subscriptions.length;
    }
    clear() {
        this.subscriptions.length = 0;
    }
}

/*
  Convert velocity into velocity per second

  @param [number]: Unit per frame
  @param [number]: Frame duration in ms
*/
function velocityPerSecond(velocity, frameDuration) {
    return frameDuration ? velocity * (1000 / frameDuration) : 0;
}

const warned = new Set();
function warnOnce(condition, message, element) {
    if (condition || warned.has(message))
        return;
    console.warn(message);
    if (element)
        console.warn(element);
    warned.add(message);
}

/**
 * Maximum time between the value of two frames, beyond which we
 * assume the velocity has since been 0.
 */
const MAX_VELOCITY_DELTA = 30;
const isFloat = (value) => {
    return !isNaN(parseFloat(value));
};
/**
 * `MotionValue` is used to track the state and velocity of motion values.
 *
 * @public
 */
class MotionValue {
    /**
     * @param init - The initiating value
     * @param config - Optional configuration options
     *
     * -  `transformer`: A function to transform incoming values with.
     *
     * @internal
     */
    constructor(init, options = {}) {
        /**
         * This will be replaced by the build step with the latest version number.
         * When MotionValues are provided to motion components, warn if versions are mixed.
         */
        this.version = "11.18.2";
        /**
         * Tracks whether this value can output a velocity. Currently this is only true
         * if the value is numerical, but we might be able to widen the scope here and support
         * other value types.
         *
         * @internal
         */
        this.canTrackVelocity = null;
        /**
         * An object containing a SubscriptionManager for each active event.
         */
        this.events = {};
        this.updateAndNotify = (v, render = true) => {
            const currentTime = time.now();
            /**
             * If we're updating the value during another frame or eventloop
             * than the previous frame, then the we set the previous frame value
             * to current.
             */
            if (this.updatedAt !== currentTime) {
                this.setPrevFrameValue();
            }
            this.prev = this.current;
            this.setCurrent(v);
            // Update update subscribers
            if (this.current !== this.prev && this.events.change) {
                this.events.change.notify(this.current);
            }
            // Update render subscribers
            if (render && this.events.renderRequest) {
                this.events.renderRequest.notify(this.current);
            }
        };
        this.hasAnimated = false;
        this.setCurrent(init);
        this.owner = options.owner;
    }
    setCurrent(current) {
        this.current = current;
        this.updatedAt = time.now();
        if (this.canTrackVelocity === null && current !== undefined) {
            this.canTrackVelocity = isFloat(this.current);
        }
    }
    setPrevFrameValue(prevFrameValue = this.current) {
        this.prevFrameValue = prevFrameValue;
        this.prevUpdatedAt = this.updatedAt;
    }
    /**
     * Adds a function that will be notified when the `MotionValue` is updated.
     *
     * It returns a function that, when called, will cancel the subscription.
     *
     * When calling `onChange` inside a React component, it should be wrapped with the
     * `useEffect` hook. As it returns an unsubscribe function, this should be returned
     * from the `useEffect` function to ensure you don't add duplicate subscribers..
     *
     * ```jsx
     * export const MyComponent = () => {
     *   const x = useMotionValue(0)
     *   const y = useMotionValue(0)
     *   const opacity = useMotionValue(1)
     *
     *   useEffect(() => {
     *     function updateOpacity() {
     *       const maxXY = Math.max(x.get(), y.get())
     *       const newOpacity = transform(maxXY, [0, 100], [1, 0])
     *       opacity.set(newOpacity)
     *     }
     *
     *     const unsubscribeX = x.on("change", updateOpacity)
     *     const unsubscribeY = y.on("change", updateOpacity)
     *
     *     return () => {
     *       unsubscribeX()
     *       unsubscribeY()
     *     }
     *   }, [])
     *
     *   return <motion.div style={{ x }} />
     * }
     * ```
     *
     * @param subscriber - A function that receives the latest value.
     * @returns A function that, when called, will cancel this subscription.
     *
     * @deprecated
     */
    onChange(subscription) {
        if (process.env.NODE_ENV !== "production") {
            warnOnce(false, `value.onChange(callback) is deprecated. Switch to value.on("change", callback).`);
        }
        return this.on("change", subscription);
    }
    on(eventName, callback) {
        if (!this.events[eventName]) {
            this.events[eventName] = new SubscriptionManager();
        }
        const unsubscribe = this.events[eventName].add(callback);
        if (eventName === "change") {
            return () => {
                unsubscribe();
                /**
                 * If we have no more change listeners by the start
                 * of the next frame, stop active animations.
                 */
                frame.read(() => {
                    if (!this.events.change.getSize()) {
                        this.stop();
                    }
                });
            };
        }
        return unsubscribe;
    }
    clearListeners() {
        for (const eventManagers in this.events) {
            this.events[eventManagers].clear();
        }
    }
    /**
     * Attaches a passive effect to the `MotionValue`.
     *
     * @internal
     */
    attach(passiveEffect, stopPassiveEffect) {
        this.passiveEffect = passiveEffect;
        this.stopPassiveEffect = stopPassiveEffect;
    }
    /**
     * Sets the state of the `MotionValue`.
     *
     * @remarks
     *
     * ```jsx
     * const x = useMotionValue(0)
     * x.set(10)
     * ```
     *
     * @param latest - Latest value to set.
     * @param render - Whether to notify render subscribers. Defaults to `true`
     *
     * @public
     */
    set(v, render = true) {
        if (!render || !this.passiveEffect) {
            this.updateAndNotify(v, render);
        }
        else {
            this.passiveEffect(v, this.updateAndNotify);
        }
    }
    setWithVelocity(prev, current, delta) {
        this.set(current);
        this.prev = undefined;
        this.prevFrameValue = prev;
        this.prevUpdatedAt = this.updatedAt - delta;
    }
    /**
     * Set the state of the `MotionValue`, stopping any active animations,
     * effects, and resets velocity to `0`.
     */
    jump(v, endAnimation = true) {
        this.updateAndNotify(v);
        this.prev = v;
        this.prevUpdatedAt = this.prevFrameValue = undefined;
        endAnimation && this.stop();
        if (this.stopPassiveEffect)
            this.stopPassiveEffect();
    }
    /**
     * Returns the latest state of `MotionValue`
     *
     * @returns - The latest state of `MotionValue`
     *
     * @public
     */
    get() {
        return this.current;
    }
    /**
     * @public
     */
    getPrevious() {
        return this.prev;
    }
    /**
     * Returns the latest velocity of `MotionValue`
     *
     * @returns - The latest velocity of `MotionValue`. Returns `0` if the state is non-numerical.
     *
     * @public
     */
    getVelocity() {
        const currentTime = time.now();
        if (!this.canTrackVelocity ||
            this.prevFrameValue === undefined ||
            currentTime - this.updatedAt > MAX_VELOCITY_DELTA) {
            return 0;
        }
        const delta = Math.min(this.updatedAt - this.prevUpdatedAt, MAX_VELOCITY_DELTA);
        // Casts because of parseFloat's poor typing
        return velocityPerSecond(parseFloat(this.current) -
            parseFloat(this.prevFrameValue), delta);
    }
    /**
     * Registers a new animation to control this `MotionValue`. Only one
     * animation can drive a `MotionValue` at one time.
     *
     * ```jsx
     * value.start()
     * ```
     *
     * @param animation - A function that starts the provided animation
     *
     * @internal
     */
    start(startAnimation) {
        this.stop();
        return new Promise((resolve) => {
            this.hasAnimated = true;
            this.animation = startAnimation(resolve);
            if (this.events.animationStart) {
                this.events.animationStart.notify();
            }
        }).then(() => {
            if (this.events.animationComplete) {
                this.events.animationComplete.notify();
            }
            this.clearAnimation();
        });
    }
    /**
     * Stop the currently active animation.
     *
     * @public
     */
    stop() {
        if (this.animation) {
            this.animation.stop();
            if (this.events.animationCancel) {
                this.events.animationCancel.notify();
            }
        }
        this.clearAnimation();
    }
    /**
     * Returns `true` if this value is currently animating.
     *
     * @public
     */
    isAnimating() {
        return !!this.animation;
    }
    clearAnimation() {
        delete this.animation;
    }
    /**
     * Destroy and clean up subscribers to this `MotionValue`.
     *
     * The `MotionValue` hooks like `useMotionValue` and `useTransform` automatically
     * handle the lifecycle of the returned `MotionValue`, so this method is only necessary if you've manually
     * created a `MotionValue` via the `motionValue` function.
     *
     * @public
     */
    destroy() {
        this.clearListeners();
        this.stop();
        if (this.stopPassiveEffect) {
            this.stopPassiveEffect();
        }
    }
}
function motionValue(init, options) {
    return new MotionValue(init, options);
}

/**
 * Set VisualElement's MotionValue, creating a new MotionValue for it if
 * it doesn't exist.
 */
function setMotionValue(visualElement, key, value) {
    if (visualElement.hasValue(key)) {
        visualElement.getValue(key).set(value);
    }
    else {
        visualElement.addValue(key, motionValue(value));
    }
}
function setTarget(visualElement, definition) {
    const resolved = resolveVariant(visualElement, definition);
    let { transitionEnd = {}, transition = {}, ...target } = resolved || {};
    target = { ...target, ...transitionEnd };
    for (const key in target) {
        const value = resolveFinalValueInKeyframes(target[key]);
        setMotionValue(visualElement, key, value);
    }
}

const isMotionValue = (value) => Boolean(value && value.getVelocity);

function isWillChangeMotionValue(value) {
    return Boolean(isMotionValue(value) && value.add);
}

function addValueToWillChange(visualElement, key) {
    const willChange = visualElement.getValue("willChange");
    /**
     * It could be that a user has set willChange to a regular MotionValue,
     * in which case we can't add the value to it.
     */
    if (isWillChangeMotionValue(willChange)) {
        return willChange.add(key);
    }
}

/**
 * Convert camelCase to dash-case properties.
 */
const camelToDash = (str) => str.replace(/([a-z])([A-Z])/gu, "$1-$2").toLowerCase();

const optimizedAppearDataId = "framerAppearId";
const optimizedAppearDataAttribute = "data-" + camelToDash(optimizedAppearDataId);

function getOptimisedAppearId(visualElement) {
    return visualElement.props[optimizedAppearDataAttribute];
}

/*
  Bezier function generator
  This has been modified from Gaëtan Renaudeau's BezierEasing
  https://github.com/gre/bezier-easing/blob/master/src/index.js
  https://github.com/gre/bezier-easing/blob/master/LICENSE
  
  I've removed the newtonRaphsonIterate algo because in benchmarking it
  wasn't noticiably faster than binarySubdivision, indeed removing it
  usually improved times, depending on the curve.
  I also removed the lookup table, as for the added bundle size and loop we're
  only cutting ~4 or so subdivision iterations. I bumped the max iterations up
  to 12 to compensate and this still tended to be faster for no perceivable
  loss in accuracy.
  Usage
    const easeOut = cubicBezier(.17,.67,.83,.67);
    const x = easeOut(0.5); // returns 0.627...
*/
// Returns x(t) given t, x1, and x2, or y(t) given t, y1, and y2.
const calcBezier = (t, a1, a2) => (((1.0 - 3.0 * a2 + 3.0 * a1) * t + (3.0 * a2 - 6.0 * a1)) * t + 3.0 * a1) *
    t;
const subdivisionPrecision = 0.0000001;
const subdivisionMaxIterations = 12;
function binarySubdivide(x, lowerBound, upperBound, mX1, mX2) {
    let currentX;
    let currentT;
    let i = 0;
    do {
        currentT = lowerBound + (upperBound - lowerBound) / 2.0;
        currentX = calcBezier(currentT, mX1, mX2) - x;
        if (currentX > 0.0) {
            upperBound = currentT;
        }
        else {
            lowerBound = currentT;
        }
    } while (Math.abs(currentX) > subdivisionPrecision &&
        ++i < subdivisionMaxIterations);
    return currentT;
}
function cubicBezier(mX1, mY1, mX2, mY2) {
    // If this is a linear gradient, return linear easing
    if (mX1 === mY1 && mX2 === mY2)
        return motionUtils.noop;
    const getTForX = (aX) => binarySubdivide(aX, 0, 1, mX1, mX2);
    // If animation is at start/end, return t without easing
    return (t) => t === 0 || t === 1 ? t : calcBezier(getTForX(t), mY1, mY2);
}

// Accepts an easing function and returns a new one that outputs mirrored values for
// the second half of the animation. Turns easeIn into easeInOut.
const mirrorEasing = (easing) => (p) => p <= 0.5 ? easing(2 * p) / 2 : (2 - easing(2 * (1 - p))) / 2;

// Accepts an easing function and returns a new one that outputs reversed values.
// Turns easeIn into easeOut.
const reverseEasing = (easing) => (p) => 1 - easing(1 - p);

const backOut = /*@__PURE__*/ cubicBezier(0.33, 1.53, 0.69, 0.99);
const backIn = /*@__PURE__*/ reverseEasing(backOut);
const backInOut = /*@__PURE__*/ mirrorEasing(backIn);

const anticipate = (p) => (p *= 2) < 1 ? 0.5 * backIn(p) : 0.5 * (2 - Math.pow(2, -10 * (p - 1)));

const circIn = (p) => 1 - Math.sin(Math.acos(p));
const circOut = reverseEasing(circIn);
const circInOut = mirrorEasing(circIn);

/**
 * Check if the value is a zero value string like "0px" or "0%"
 */
const isZeroValueString = (v) => /^0[^.\s]+$/u.test(v);

function isNone(value) {
    if (typeof value === "number") {
        return value === 0;
    }
    else if (value !== null) {
        return value === "none" || value === "0" || isZeroValueString(value);
    }
    else {
        return true;
    }
}

const clamp = (min, max, v) => {
    if (v > max)
        return max;
    if (v < min)
        return min;
    return v;
};

const number = {
    test: (v) => typeof v === "number",
    parse: parseFloat,
    transform: (v) => v,
};
const alpha = {
    ...number,
    transform: (v) => clamp(0, 1, v),
};
const scale = {
    ...number,
    default: 1,
};

// If this number is a decimal, make it just five decimal places
// to avoid exponents
const sanitize = (v) => Math.round(v * 100000) / 100000;

const floatRegex = /-?(?:\d+(?:\.\d+)?|\.\d+)/gu;

function isNullish(v) {
    return v == null;
}

const singleColorRegex = /^(?:#[\da-f]{3,8}|(?:rgb|hsl)a?\((?:-?[\d.]+%?[,\s]+){2}-?[\d.]+%?\s*(?:[,/]\s*)?(?:\b\d+(?:\.\d+)?|\.\d+)?%?\))$/iu;

/**
 * Returns true if the provided string is a color, ie rgba(0,0,0,0) or #000,
 * but false if a number or multiple colors
 */
const isColorString = (type, testProp) => (v) => {
    return Boolean((typeof v === "string" &&
        singleColorRegex.test(v) &&
        v.startsWith(type)) ||
        (testProp &&
            !isNullish(v) &&
            Object.prototype.hasOwnProperty.call(v, testProp)));
};
const splitColor = (aName, bName, cName) => (v) => {
    if (typeof v !== "string")
        return v;
    const [a, b, c, alpha] = v.match(floatRegex);
    return {
        [aName]: parseFloat(a),
        [bName]: parseFloat(b),
        [cName]: parseFloat(c),
        alpha: alpha !== undefined ? parseFloat(alpha) : 1,
    };
};

const clampRgbUnit = (v) => clamp(0, 255, v);
const rgbUnit = {
    ...number,
    transform: (v) => Math.round(clampRgbUnit(v)),
};
const rgba = {
    test: /*@__PURE__*/ isColorString("rgb", "red"),
    parse: /*@__PURE__*/ splitColor("red", "green", "blue"),
    transform: ({ red, green, blue, alpha: alpha$1 = 1 }) => "rgba(" +
        rgbUnit.transform(red) +
        ", " +
        rgbUnit.transform(green) +
        ", " +
        rgbUnit.transform(blue) +
        ", " +
        sanitize(alpha.transform(alpha$1)) +
        ")",
};

function parseHex(v) {
    let r = "";
    let g = "";
    let b = "";
    let a = "";
    // If we have 6 characters, ie #FF0000
    if (v.length > 5) {
        r = v.substring(1, 3);
        g = v.substring(3, 5);
        b = v.substring(5, 7);
        a = v.substring(7, 9);
        // Or we have 3 characters, ie #F00
    }
    else {
        r = v.substring(1, 2);
        g = v.substring(2, 3);
        b = v.substring(3, 4);
        a = v.substring(4, 5);
        r += r;
        g += g;
        b += b;
        a += a;
    }
    return {
        red: parseInt(r, 16),
        green: parseInt(g, 16),
        blue: parseInt(b, 16),
        alpha: a ? parseInt(a, 16) / 255 : 1,
    };
}
const hex = {
    test: /*@__PURE__*/ isColorString("#"),
    parse: parseHex,
    transform: rgba.transform,
};

const createUnitType = (unit) => ({
    test: (v) => typeof v === "string" && v.endsWith(unit) && v.split(" ").length === 1,
    parse: parseFloat,
    transform: (v) => `${v}${unit}`,
});
const degrees = /*@__PURE__*/ createUnitType("deg");
const percent = /*@__PURE__*/ createUnitType("%");
const px = /*@__PURE__*/ createUnitType("px");
const vh = /*@__PURE__*/ createUnitType("vh");
const vw = /*@__PURE__*/ createUnitType("vw");
const progressPercentage = {
    ...percent,
    parse: (v) => percent.parse(v) / 100,
    transform: (v) => percent.transform(v * 100),
};

const hsla = {
    test: /*@__PURE__*/ isColorString("hsl", "hue"),
    parse: /*@__PURE__*/ splitColor("hue", "saturation", "lightness"),
    transform: ({ hue, saturation, lightness, alpha: alpha$1 = 1 }) => {
        return ("hsla(" +
            Math.round(hue) +
            ", " +
            percent.transform(sanitize(saturation)) +
            ", " +
            percent.transform(sanitize(lightness)) +
            ", " +
            sanitize(alpha.transform(alpha$1)) +
            ")");
    },
};

const color = {
    test: (v) => rgba.test(v) || hex.test(v) || hsla.test(v),
    parse: (v) => {
        if (rgba.test(v)) {
            return rgba.parse(v);
        }
        else if (hsla.test(v)) {
            return hsla.parse(v);
        }
        else {
            return hex.parse(v);
        }
    },
    transform: (v) => {
        return typeof v === "string"
            ? v
            : v.hasOwnProperty("red")
                ? rgba.transform(v)
                : hsla.transform(v);
    },
};

const colorRegex = /(?:#[\da-f]{3,8}|(?:rgb|hsl)a?\((?:-?[\d.]+%?[,\s]+){2}-?[\d.]+%?\s*(?:[,/]\s*)?(?:\b\d+(?:\.\d+)?|\.\d+)?%?\))/giu;

function test(v) {
    var _a, _b;
    return (isNaN(v) &&
        typeof v === "string" &&
        (((_a = v.match(floatRegex)) === null || _a === void 0 ? void 0 : _a.length) || 0) +
            (((_b = v.match(colorRegex)) === null || _b === void 0 ? void 0 : _b.length) || 0) >
            0);
}
const NUMBER_TOKEN = "number";
const COLOR_TOKEN = "color";
const VAR_TOKEN = "var";
const VAR_FUNCTION_TOKEN = "var(";
const SPLIT_TOKEN = "${}";
// this regex consists of the `singleCssVariableRegex|rgbHSLValueRegex|digitRegex`
const complexRegex = /var\s*\(\s*--(?:[\w-]+\s*|[\w-]+\s*,(?:\s*[^)(\s]|\s*\((?:[^)(]|\([^)(]*\))*\))+\s*)\)|#[\da-f]{3,8}|(?:rgb|hsl)a?\((?:-?[\d.]+%?[,\s]+){2}-?[\d.]+%?\s*(?:[,/]\s*)?(?:\b\d+(?:\.\d+)?|\.\d+)?%?\)|-?(?:\d+(?:\.\d+)?|\.\d+)/giu;
function analyseComplexValue(value) {
    const originalValue = value.toString();
    const values = [];
    const indexes = {
        color: [],
        number: [],
        var: [],
    };
    const types = [];
    let i = 0;
    const tokenised = originalValue.replace(complexRegex, (parsedValue) => {
        if (color.test(parsedValue)) {
            indexes.color.push(i);
            types.push(COLOR_TOKEN);
            values.push(color.parse(parsedValue));
        }
        else if (parsedValue.startsWith(VAR_FUNCTION_TOKEN)) {
            indexes.var.push(i);
            types.push(VAR_TOKEN);
            values.push(parsedValue);
        }
        else {
            indexes.number.push(i);
            types.push(NUMBER_TOKEN);
            values.push(parseFloat(parsedValue));
        }
        ++i;
        return SPLIT_TOKEN;
    });
    const split = tokenised.split(SPLIT_TOKEN);
    return { values, split, indexes, types };
}
function parseComplexValue(v) {
    return analyseComplexValue(v).values;
}
function createTransformer(source) {
    const { split, types } = analyseComplexValue(source);
    const numSections = split.length;
    return (v) => {
        let output = "";
        for (let i = 0; i < numSections; i++) {
            output += split[i];
            if (v[i] !== undefined) {
                const type = types[i];
                if (type === NUMBER_TOKEN) {
                    output += sanitize(v[i]);
                }
                else if (type === COLOR_TOKEN) {
                    output += color.transform(v[i]);
                }
                else {
                    output += v[i];
                }
            }
        }
        return output;
    };
}
const convertNumbersToZero = (v) => typeof v === "number" ? 0 : v;
function getAnimatableNone$1(v) {
    const parsed = parseComplexValue(v);
    const transformer = createTransformer(v);
    return transformer(parsed.map(convertNumbersToZero));
}
const complex = {
    test,
    parse: parseComplexValue,
    createTransformer,
    getAnimatableNone: getAnimatableNone$1,
};

/**
 * Properties that should default to 1 or 100%
 */
const maxDefaults = new Set(["brightness", "contrast", "saturate", "opacity"]);
function applyDefaultFilter(v) {
    const [name, value] = v.slice(0, -1).split("(");
    if (name === "drop-shadow")
        return v;
    const [number] = value.match(floatRegex) || [];
    if (!number)
        return v;
    const unit = value.replace(number, "");
    let defaultValue = maxDefaults.has(name) ? 1 : 0;
    if (number !== value)
        defaultValue *= 100;
    return name + "(" + defaultValue + unit + ")";
}
const functionRegex = /\b([a-z-]*)\(.*?\)/gu;
const filter = {
    ...complex,
    getAnimatableNone: (v) => {
        const functions = v.match(functionRegex);
        return functions ? functions.map(applyDefaultFilter).join(" ") : v;
    },
};

const browserNumberValueTypes = {
    // Border props
    borderWidth: px,
    borderTopWidth: px,
    borderRightWidth: px,
    borderBottomWidth: px,
    borderLeftWidth: px,
    borderRadius: px,
    radius: px,
    borderTopLeftRadius: px,
    borderTopRightRadius: px,
    borderBottomRightRadius: px,
    borderBottomLeftRadius: px,
    // Positioning props
    width: px,
    maxWidth: px,
    height: px,
    maxHeight: px,
    top: px,
    right: px,
    bottom: px,
    left: px,
    // Spacing props
    padding: px,
    paddingTop: px,
    paddingRight: px,
    paddingBottom: px,
    paddingLeft: px,
    margin: px,
    marginTop: px,
    marginRight: px,
    marginBottom: px,
    marginLeft: px,
    // Misc
    backgroundPositionX: px,
    backgroundPositionY: px,
};

const transformValueTypes = {
    rotate: degrees,
    rotateX: degrees,
    rotateY: degrees,
    rotateZ: degrees,
    scale,
    scaleX: scale,
    scaleY: scale,
    scaleZ: scale,
    skew: degrees,
    skewX: degrees,
    skewY: degrees,
    distance: px,
    translateX: px,
    translateY: px,
    translateZ: px,
    x: px,
    y: px,
    z: px,
    perspective: px,
    transformPerspective: px,
    opacity: alpha,
    originX: progressPercentage,
    originY: progressPercentage,
    originZ: px,
};

const int = {
    ...number,
    transform: Math.round,
};

const numberValueTypes = {
    ...browserNumberValueTypes,
    ...transformValueTypes,
    zIndex: int,
    size: px,
    // SVG
    fillOpacity: alpha,
    strokeOpacity: alpha,
    numOctaves: int,
};

/**
 * A map of default value types for common values
 */
const defaultValueTypes = {
    ...numberValueTypes,
    // Color props
    color,
    backgroundColor: color,
    outlineColor: color,
    fill: color,
    stroke: color,
    // Border props
    borderColor: color,
    borderTopColor: color,
    borderRightColor: color,
    borderBottomColor: color,
    borderLeftColor: color,
    filter,
    WebkitFilter: filter,
};
/**
 * Gets the default ValueType for the provided value key
 */
const getDefaultValueType = (key) => defaultValueTypes[key];

function getAnimatableNone(key, value) {
    let defaultValueType = getDefaultValueType(key);
    if (defaultValueType !== filter)
        defaultValueType = complex;
    // If value is not recognised as animatable, ie "none", create an animatable version origin based on the target
    return defaultValueType.getAnimatableNone
        ? defaultValueType.getAnimatableNone(value)
        : undefined;
}

/**
 * If we encounter keyframes like "none" or "0" and we also have keyframes like
 * "#fff" or "200px 200px" we want to find a keyframe to serve as a template for
 * the "none" keyframes. In this case "#fff" or "200px 200px" - then these get turned into
 * zero equivalents, i.e. "#fff0" or "0px 0px".
 */
const invalidTemplates = new Set(["auto", "none", "0"]);
function makeNoneKeyframesAnimatable(unresolvedKeyframes, noneKeyframeIndexes, name) {
    let i = 0;
    let animatableTemplate = undefined;
    while (i < unresolvedKeyframes.length && !animatableTemplate) {
        const keyframe = unresolvedKeyframes[i];
        if (typeof keyframe === "string" &&
            !invalidTemplates.has(keyframe) &&
            analyseComplexValue(keyframe).values.length) {
            animatableTemplate = unresolvedKeyframes[i];
        }
        i++;
    }
    if (animatableTemplate && name) {
        for (const noneIndex of noneKeyframeIndexes) {
            unresolvedKeyframes[noneIndex] = getAnimatableNone(name, animatableTemplate);
        }
    }
}

const isNumOrPxType = (v) => v === number || v === px;
const getPosFromMatrix = (matrix, pos) => parseFloat(matrix.split(", ")[pos]);
const getTranslateFromMatrix = (pos2, pos3) => (_bbox, { transform }) => {
    if (transform === "none" || !transform)
        return 0;
    const matrix3d = transform.match(/^matrix3d\((.+)\)$/u);
    if (matrix3d) {
        return getPosFromMatrix(matrix3d[1], pos3);
    }
    else {
        const matrix = transform.match(/^matrix\((.+)\)$/u);
        if (matrix) {
            return getPosFromMatrix(matrix[1], pos2);
        }
        else {
            return 0;
        }
    }
};
const transformKeys = new Set(["x", "y", "z"]);
const nonTranslationalTransformKeys = transformPropOrder.filter((key) => !transformKeys.has(key));
function removeNonTranslationalTransform(visualElement) {
    const removedTransforms = [];
    nonTranslationalTransformKeys.forEach((key) => {
        const value = visualElement.getValue(key);
        if (value !== undefined) {
            removedTransforms.push([key, value.get()]);
            value.set(key.startsWith("scale") ? 1 : 0);
        }
    });
    return removedTransforms;
}
const positionalValues = {
    // Dimensions
    width: ({ x }, { paddingLeft = "0", paddingRight = "0" }) => x.max - x.min - parseFloat(paddingLeft) - parseFloat(paddingRight),
    height: ({ y }, { paddingTop = "0", paddingBottom = "0" }) => y.max - y.min - parseFloat(paddingTop) - parseFloat(paddingBottom),
    top: (_bbox, { top }) => parseFloat(top),
    left: (_bbox, { left }) => parseFloat(left),
    bottom: ({ y }, { top }) => parseFloat(top) + (y.max - y.min),
    right: ({ x }, { left }) => parseFloat(left) + (x.max - x.min),
    // Transform
    x: getTranslateFromMatrix(4, 13),
    y: getTranslateFromMatrix(5, 14),
};
// Alias translate longform names
positionalValues.translateX = positionalValues.x;
positionalValues.translateY = positionalValues.y;

const toResolve = new Set();
let isScheduled = false;
let anyNeedsMeasurement = false;
function measureAllKeyframes() {
    if (anyNeedsMeasurement) {
        const resolversToMeasure = Array.from(toResolve).filter((resolver) => resolver.needsMeasurement);
        const elementsToMeasure = new Set(resolversToMeasure.map((resolver) => resolver.element));
        const transformsToRestore = new Map();
        /**
         * Write pass
         * If we're measuring elements we want to remove bounding box-changing transforms.
         */
        elementsToMeasure.forEach((element) => {
            const removedTransforms = removeNonTranslationalTransform(element);
            if (!removedTransforms.length)
                return;
            transformsToRestore.set(element, removedTransforms);
            element.render();
        });
        // Read
        resolversToMeasure.forEach((resolver) => resolver.measureInitialState());
        // Write
        elementsToMeasure.forEach((element) => {
            element.render();
            const restore = transformsToRestore.get(element);
            if (restore) {
                restore.forEach(([key, value]) => {
                    var _a;
                    (_a = element.getValue(key)) === null || _a === void 0 ? void 0 : _a.set(value);
                });
            }
        });
        // Read
        resolversToMeasure.forEach((resolver) => resolver.measureEndState());
        // Write
        resolversToMeasure.forEach((resolver) => {
            if (resolver.suspendedScrollY !== undefined) {
                window.scrollTo(0, resolver.suspendedScrollY);
            }
        });
    }
    anyNeedsMeasurement = false;
    isScheduled = false;
    toResolve.forEach((resolver) => resolver.complete());
    toResolve.clear();
}
function readAllKeyframes() {
    toResolve.forEach((resolver) => {
        resolver.readKeyframes();
        if (resolver.needsMeasurement) {
            anyNeedsMeasurement = true;
        }
    });
}
function flushKeyframeResolvers() {
    readAllKeyframes();
    measureAllKeyframes();
}
class KeyframeResolver {
    constructor(unresolvedKeyframes, onComplete, name, motionValue, element, isAsync = false) {
        /**
         * Track whether this resolver has completed. Once complete, it never
         * needs to attempt keyframe resolution again.
         */
        this.isComplete = false;
        /**
         * Track whether this resolver is async. If it is, it'll be added to the
         * resolver queue and flushed in the next frame. Resolvers that aren't going
         * to trigger read/write thrashing don't need to be async.
         */
        this.isAsync = false;
        /**
         * Track whether this resolver needs to perform a measurement
         * to resolve its keyframes.
         */
        this.needsMeasurement = false;
        /**
         * Track whether this resolver is currently scheduled to resolve
         * to allow it to be cancelled and resumed externally.
         */
        this.isScheduled = false;
        this.unresolvedKeyframes = [...unresolvedKeyframes];
        this.onComplete = onComplete;
        this.name = name;
        this.motionValue = motionValue;
        this.element = element;
        this.isAsync = isAsync;
    }
    scheduleResolve() {
        this.isScheduled = true;
        if (this.isAsync) {
            toResolve.add(this);
            if (!isScheduled) {
                isScheduled = true;
                frame.read(readAllKeyframes);
                frame.resolveKeyframes(measureAllKeyframes);
            }
        }
        else {
            this.readKeyframes();
            this.complete();
        }
    }
    readKeyframes() {
        const { unresolvedKeyframes, name, element, motionValue } = this;
        /**
         * If a keyframe is null, we hydrate it either by reading it from
         * the instance, or propagating from previous keyframes.
         */
        for (let i = 0; i < unresolvedKeyframes.length; i++) {
            if (unresolvedKeyframes[i] === null) {
                /**
                 * If the first keyframe is null, we need to find its value by sampling the element
                 */
                if (i === 0) {
                    const currentValue = motionValue === null || motionValue === void 0 ? void 0 : motionValue.get();
                    const finalKeyframe = unresolvedKeyframes[unresolvedKeyframes.length - 1];
                    if (currentValue !== undefined) {
                        unresolvedKeyframes[0] = currentValue;
                    }
                    else if (element && name) {
                        const valueAsRead = element.readValue(name, finalKeyframe);
                        if (valueAsRead !== undefined && valueAsRead !== null) {
                            unresolvedKeyframes[0] = valueAsRead;
                        }
                    }
                    if (unresolvedKeyframes[0] === undefined) {
                        unresolvedKeyframes[0] = finalKeyframe;
                    }
                    if (motionValue && currentValue === undefined) {
                        motionValue.set(unresolvedKeyframes[0]);
                    }
                }
                else {
                    unresolvedKeyframes[i] = unresolvedKeyframes[i - 1];
                }
            }
        }
    }
    setFinalKeyframe() { }
    measureInitialState() { }
    renderEndStyles() { }
    measureEndState() { }
    complete() {
        this.isComplete = true;
        this.onComplete(this.unresolvedKeyframes, this.finalKeyframe);
        toResolve.delete(this);
    }
    cancel() {
        if (!this.isComplete) {
            this.isScheduled = false;
            toResolve.delete(this);
        }
    }
    resume() {
        if (!this.isComplete)
            this.scheduleResolve();
    }
}

/**
 * Check if value is a numerical string, ie a string that is purely a number eg "100" or "-100.1"
 */
const isNumericalString = (v) => /^-?(?:\d+(?:\.\d+)?|\.\d+)$/u.test(v);

const checkStringStartsWith = (token) => (key) => typeof key === "string" && key.startsWith(token);
const isCSSVariableName = 
/*@__PURE__*/ checkStringStartsWith("--");
const startsAsVariableToken = 
/*@__PURE__*/ checkStringStartsWith("var(--");
const isCSSVariableToken = (value) => {
    const startsWithToken = startsAsVariableToken(value);
    if (!startsWithToken)
        return false;
    // Ensure any comments are stripped from the value as this can harm performance of the regex.
    return singleCssVariableRegex.test(value.split("/*")[0].trim());
};
const singleCssVariableRegex = /var\(--(?:[\w-]+\s*|[\w-]+\s*,(?:\s*[^)(\s]|\s*\((?:[^)(]|\([^)(]*\))*\))+\s*)\)$/iu;

/**
 * Parse Framer's special CSS variable format into a CSS token and a fallback.
 *
 * ```
 * `var(--foo, #fff)` => [`--foo`, '#fff']
 * ```
 *
 * @param current
 */
const splitCSSVariableRegex = 
// eslint-disable-next-line redos-detector/no-unsafe-regex -- false positive, as it can match a lot of words
/^var\(--(?:([\w-]+)|([\w-]+), ?([a-zA-Z\d ()%#.,-]+))\)/u;
function parseCSSVariable(current) {
    const match = splitCSSVariableRegex.exec(current);
    if (!match)
        return [,];
    const [, token1, token2, fallback] = match;
    return [`--${token1 !== null && token1 !== void 0 ? token1 : token2}`, fallback];
}
const maxDepth = 4;
function getVariableValue(current, element, depth = 1) {
    motionUtils.invariant(depth <= maxDepth, `Max CSS variable fallback depth detected in property "${current}". This may indicate a circular fallback dependency.`);
    const [token, fallback] = parseCSSVariable(current);
    // No CSS variable detected
    if (!token)
        return;
    // Attempt to read this CSS variable off the element
    const resolved = window.getComputedStyle(element).getPropertyValue(token);
    if (resolved) {
        const trimmed = resolved.trim();
        return isNumericalString(trimmed) ? parseFloat(trimmed) : trimmed;
    }
    return isCSSVariableToken(fallback)
        ? getVariableValue(fallback, element, depth + 1)
        : fallback;
}

/**
 * Tests a provided value against a ValueType
 */
const testValueType = (v) => (type) => type.test(v);

/**
 * ValueType for "auto"
 */
const auto = {
    test: (v) => v === "auto",
    parse: (v) => v,
};

/**
 * A list of value types commonly used for dimensions
 */
const dimensionValueTypes = [number, px, percent, degrees, vw, vh, auto];
/**
 * Tests a dimensional value against the list of dimension ValueTypes
 */
const findDimensionValueType = (v) => dimensionValueTypes.find(testValueType(v));

class DOMKeyframesResolver extends KeyframeResolver {
    constructor(unresolvedKeyframes, onComplete, name, motionValue, element) {
        super(unresolvedKeyframes, onComplete, name, motionValue, element, true);
    }
    readKeyframes() {
        const { unresolvedKeyframes, element, name } = this;
        if (!element || !element.current)
            return;
        super.readKeyframes();
        /**
         * If any keyframe is a CSS variable, we need to find its value by sampling the element
         */
        for (let i = 0; i < unresolvedKeyframes.length; i++) {
            let keyframe = unresolvedKeyframes[i];
            if (typeof keyframe === "string") {
                keyframe = keyframe.trim();
                if (isCSSVariableToken(keyframe)) {
                    const resolved = getVariableValue(keyframe, element.current);
                    if (resolved !== undefined) {
                        unresolvedKeyframes[i] = resolved;
                    }
                    if (i === unresolvedKeyframes.length - 1) {
                        this.finalKeyframe = keyframe;
                    }
                }
            }
        }
        /**
         * Resolve "none" values. We do this potentially twice - once before and once after measuring keyframes.
         * This could be seen as inefficient but it's a trade-off to avoid measurements in more situations, which
         * have a far bigger performance impact.
         */
        this.resolveNoneKeyframes();
        /**
         * Check to see if unit type has changed. If so schedule jobs that will
         * temporarily set styles to the destination keyframes.
         * Skip if we have more than two keyframes or this isn't a positional value.
         * TODO: We can throw if there are multiple keyframes and the value type changes.
         */
        if (!positionalKeys.has(name) || unresolvedKeyframes.length !== 2) {
            return;
        }
        const [origin, target] = unresolvedKeyframes;
        const originType = findDimensionValueType(origin);
        const targetType = findDimensionValueType(target);
        /**
         * Either we don't recognise these value types or we can animate between them.
         */
        if (originType === targetType)
            return;
        /**
         * If both values are numbers or pixels, we can animate between them by
         * converting them to numbers.
         */
        if (isNumOrPxType(originType) && isNumOrPxType(targetType)) {
            for (let i = 0; i < unresolvedKeyframes.length; i++) {
                const value = unresolvedKeyframes[i];
                if (typeof value === "string") {
                    unresolvedKeyframes[i] = parseFloat(value);
                }
            }
        }
        else {
            /**
             * Else, the only way to resolve this is by measuring the element.
             */
            this.needsMeasurement = true;
        }
    }
    resolveNoneKeyframes() {
        const { unresolvedKeyframes, name } = this;
        const noneKeyframeIndexes = [];
        for (let i = 0; i < unresolvedKeyframes.length; i++) {
            if (isNone(unresolvedKeyframes[i])) {
                noneKeyframeIndexes.push(i);
            }
        }
        if (noneKeyframeIndexes.length) {
            makeNoneKeyframesAnimatable(unresolvedKeyframes, noneKeyframeIndexes, name);
        }
    }
    measureInitialState() {
        const { element, unresolvedKeyframes, name } = this;
        if (!element || !element.current)
            return;
        if (name === "height") {
            this.suspendedScrollY = window.pageYOffset;
        }
        this.measuredOrigin = positionalValues[name](element.measureViewportBox(), window.getComputedStyle(element.current));
        unresolvedKeyframes[0] = this.measuredOrigin;
        // Set final key frame to measure after next render
        const measureKeyframe = unresolvedKeyframes[unresolvedKeyframes.length - 1];
        if (measureKeyframe !== undefined) {
            element.getValue(name, measureKeyframe).jump(measureKeyframe, false);
        }
    }
    measureEndState() {
        var _a;
        const { element, name, unresolvedKeyframes } = this;
        if (!element || !element.current)
            return;
        const value = element.getValue(name);
        value && value.jump(this.measuredOrigin, false);
        const finalKeyframeIndex = unresolvedKeyframes.length - 1;
        const finalKeyframe = unresolvedKeyframes[finalKeyframeIndex];
        unresolvedKeyframes[finalKeyframeIndex] = positionalValues[name](element.measureViewportBox(), window.getComputedStyle(element.current));
        if (finalKeyframe !== null && this.finalKeyframe === undefined) {
            this.finalKeyframe = finalKeyframe;
        }
        // If we removed transform values, reapply them before the next render
        if ((_a = this.removedTransforms) === null || _a === void 0 ? void 0 : _a.length) {
            this.removedTransforms.forEach(([unsetTransformName, unsetTransformValue]) => {
                element
                    .getValue(unsetTransformName)
                    .set(unsetTransformValue);
            });
        }
        this.resolveNoneKeyframes();
    }
}

/**
 * Check if a value is animatable. Examples:
 *
 * ✅: 100, "100px", "#fff"
 * ❌: "block", "url(2.jpg)"
 * @param value
 *
 * @internal
 */
const isAnimatable = (value, name) => {
    // If the list of keys tat might be non-animatable grows, replace with Set
    if (name === "zIndex")
        return false;
    // If it's a number or a keyframes array, we can animate it. We might at some point
    // need to do a deep isAnimatable check of keyframes, or let Popmotion handle this,
    // but for now lets leave it like this for performance reasons
    if (typeof value === "number" || Array.isArray(value))
        return true;
    if (typeof value === "string" && // It's animatable if we have a string
        (complex.test(value) || value === "0") && // And it contains numbers and/or colors
        !value.startsWith("url(") // Unless it starts with "url("
    ) {
        return true;
    }
    return false;
};

function hasKeyframesChanged(keyframes) {
    const current = keyframes[0];
    if (keyframes.length === 1)
        return true;
    for (let i = 0; i < keyframes.length; i++) {
        if (keyframes[i] !== current)
            return true;
    }
}
function canAnimate(keyframes, name, type, velocity) {
    /**
     * Check if we're able to animate between the start and end keyframes,
     * and throw a warning if we're attempting to animate between one that's
     * animatable and another that isn't.
     */
    const originKeyframe = keyframes[0];
    if (originKeyframe === null)
        return false;
    /**
     * These aren't traditionally animatable but we do support them.
     * In future we could look into making this more generic or replacing
     * this function with mix() === mixImmediate
     */
    if (name === "display" || name === "visibility")
        return true;
    const targetKeyframe = keyframes[keyframes.length - 1];
    const isOriginAnimatable = isAnimatable(originKeyframe, name);
    const isTargetAnimatable = isAnimatable(targetKeyframe, name);
    motionUtils.warning(isOriginAnimatable === isTargetAnimatable, `You are trying to animate ${name} from "${originKeyframe}" to "${targetKeyframe}". ${originKeyframe} is not an animatable value - to enable this animation set ${originKeyframe} to a value animatable to ${targetKeyframe} via the \`style\` property.`);
    // Always skip if any of these are true
    if (!isOriginAnimatable || !isTargetAnimatable) {
        return false;
    }
    return (hasKeyframesChanged(keyframes) ||
        ((type === "spring" || motionDom.isGenerator(type)) && velocity));
}

const isNotNull = (value) => value !== null;
function getFinalKeyframe(keyframes, { repeat, repeatType = "loop" }, finalKeyframe) {
    const resolvedKeyframes = keyframes.filter(isNotNull);
    const index = repeat && repeatType !== "loop" && repeat % 2 === 1
        ? 0
        : resolvedKeyframes.length - 1;
    return !index || finalKeyframe === undefined
        ? resolvedKeyframes[index]
        : finalKeyframe;
}

/**
 * Maximum time allowed between an animation being created and it being
 * resolved for us to use the latter as the start time.
 *
 * This is to ensure that while we prefer to "start" an animation as soon
 * as it's triggered, we also want to avoid a visual jump if there's a big delay
 * between these two moments.
 */
const MAX_RESOLVE_DELAY = 40;
class BaseAnimation {
    constructor({ autoplay = true, delay = 0, type = "keyframes", repeat = 0, repeatDelay = 0, repeatType = "loop", ...options }) {
        // Track whether the animation has been stopped. Stopped animations won't restart.
        this.isStopped = false;
        this.hasAttemptedResolve = false;
        this.createdAt = time.now();
        this.options = {
            autoplay,
            delay,
            type,
            repeat,
            repeatDelay,
            repeatType,
            ...options,
        };
        this.updateFinishedPromise();
    }
    /**
     * This method uses the createdAt and resolvedAt to calculate the
     * animation startTime. *Ideally*, we would use the createdAt time as t=0
     * as the following frame would then be the first frame of the animation in
     * progress, which would feel snappier.
     *
     * However, if there's a delay (main thread work) between the creation of
     * the animation and the first commited frame, we prefer to use resolvedAt
     * to avoid a sudden jump into the animation.
     */
    calcStartTime() {
        if (!this.resolvedAt)
            return this.createdAt;
        return this.resolvedAt - this.createdAt > MAX_RESOLVE_DELAY
            ? this.resolvedAt
            : this.createdAt;
    }
    /**
     * A getter for resolved data. If keyframes are not yet resolved, accessing
     * this.resolved will synchronously flush all pending keyframe resolvers.
     * This is a deoptimisation, but at its worst still batches read/writes.
     */
    get resolved() {
        if (!this._resolved && !this.hasAttemptedResolve) {
            flushKeyframeResolvers();
        }
        return this._resolved;
    }
    /**
     * A method to be called when the keyframes resolver completes. This method
     * will check if its possible to run the animation and, if not, skip it.
     * Otherwise, it will call initPlayback on the implementing class.
     */
    onKeyframesResolved(keyframes, finalKeyframe) {
        this.resolvedAt = time.now();
        this.hasAttemptedResolve = true;
        const { name, type, velocity, delay, onComplete, onUpdate, isGenerator, } = this.options;
        /**
         * If we can't animate this value with the resolved keyframes
         * then we should complete it immediately.
         */
        if (!isGenerator && !canAnimate(keyframes, name, type, velocity)) {
            // Finish immediately
            if (!delay) {
                onUpdate &&
                    onUpdate(getFinalKeyframe(keyframes, this.options, finalKeyframe));
                onComplete && onComplete();
                this.resolveFinishedPromise();
                return;
            }
            // Finish after a delay
            else {
                this.options.duration = 0;
            }
        }
        const resolvedAnimation = this.initPlayback(keyframes, finalKeyframe);
        if (resolvedAnimation === false)
            return;
        this._resolved = {
            keyframes,
            finalKeyframe,
            ...resolvedAnimation,
        };
        this.onPostResolved();
    }
    onPostResolved() { }
    /**
     * Allows the returned animation to be awaited or promise-chained. Currently
     * resolves when the animation finishes at all but in a future update could/should
     * reject if its cancels.
     */
    then(resolve, reject) {
        return this.currentFinishedPromise.then(resolve, reject);
    }
    flatten() {
        this.options.type = "keyframes";
        this.options.ease = "linear";
    }
    updateFinishedPromise() {
        this.currentFinishedPromise = new Promise((resolve) => {
            this.resolveFinishedPromise = resolve;
        });
    }
}

/*
  Value in range from progress

  Given a lower limit and an upper limit, we return the value within
  that range as expressed by progress (usually a number from 0 to 1)

  So progress = 0.5 would change

  from -------- to

  to

  from ---- to

  E.g. from = 10, to = 20, progress = 0.5 => 15

  @param [number]: Lower limit of range
  @param [number]: Upper limit of range
  @param [number]: The progress between lower and upper limits expressed 0-1
  @return [number]: Value as calculated from progress within range (not limited within range)
*/
const mixNumber$1 = (from, to, progress) => {
    return from + (to - from) * progress;
};

// Adapted from https://gist.github.com/mjackson/5311256
function hueToRgb(p, q, t) {
    if (t < 0)
        t += 1;
    if (t > 1)
        t -= 1;
    if (t < 1 / 6)
        return p + (q - p) * 6 * t;
    if (t < 1 / 2)
        return q;
    if (t < 2 / 3)
        return p + (q - p) * (2 / 3 - t) * 6;
    return p;
}
function hslaToRgba({ hue, saturation, lightness, alpha }) {
    hue /= 360;
    saturation /= 100;
    lightness /= 100;
    let red = 0;
    let green = 0;
    let blue = 0;
    if (!saturation) {
        red = green = blue = lightness;
    }
    else {
        const q = lightness < 0.5
            ? lightness * (1 + saturation)
            : lightness + saturation - lightness * saturation;
        const p = 2 * lightness - q;
        red = hueToRgb(p, q, hue + 1 / 3);
        green = hueToRgb(p, q, hue);
        blue = hueToRgb(p, q, hue - 1 / 3);
    }
    return {
        red: Math.round(red * 255),
        green: Math.round(green * 255),
        blue: Math.round(blue * 255),
        alpha,
    };
}

function mixImmediate(a, b) {
    return (p) => (p > 0 ? b : a);
}

// Linear color space blending
// Explained https://www.youtube.com/watch?v=LKnqECcg6Gw
// Demonstrated http://codepen.io/osublake/pen/xGVVaN
const mixLinearColor = (from, to, v) => {
    const fromExpo = from * from;
    const expo = v * (to * to - fromExpo) + fromExpo;
    return expo < 0 ? 0 : Math.sqrt(expo);
};
const colorTypes = [hex, rgba, hsla];
const getColorType = (v) => colorTypes.find((type) => type.test(v));
function asRGBA(color) {
    const type = getColorType(color);
    motionUtils.warning(Boolean(type), `'${color}' is not an animatable color. Use the equivalent color code instead.`);
    if (!Boolean(type))
        return false;
    let model = type.parse(color);
    if (type === hsla) {
        // TODO Remove this cast - needed since Motion's stricter typing
        model = hslaToRgba(model);
    }
    return model;
}
const mixColor = (from, to) => {
    const fromRGBA = asRGBA(from);
    const toRGBA = asRGBA(to);
    if (!fromRGBA || !toRGBA) {
        return mixImmediate(from, to);
    }
    const blended = { ...fromRGBA };
    return (v) => {
        blended.red = mixLinearColor(fromRGBA.red, toRGBA.red, v);
        blended.green = mixLinearColor(fromRGBA.green, toRGBA.green, v);
        blended.blue = mixLinearColor(fromRGBA.blue, toRGBA.blue, v);
        blended.alpha = mixNumber$1(fromRGBA.alpha, toRGBA.alpha, v);
        return rgba.transform(blended);
    };
};

/**
 * Pipe
 * Compose other transformers to run linearily
 * pipe(min(20), max(40))
 * @param  {...functions} transformers
 * @return {function}
 */
const combineFunctions = (a, b) => (v) => b(a(v));
const pipe = (...transformers) => transformers.reduce(combineFunctions);

const invisibleValues = new Set(["none", "hidden"]);
/**
 * Returns a function that, when provided a progress value between 0 and 1,
 * will return the "none" or "hidden" string only when the progress is that of
 * the origin or target.
 */
function mixVisibility(origin, target) {
    if (invisibleValues.has(origin)) {
        return (p) => (p <= 0 ? origin : target);
    }
    else {
        return (p) => (p >= 1 ? target : origin);
    }
}

function mixNumber(a, b) {
    return (p) => mixNumber$1(a, b, p);
}
function getMixer(a) {
    if (typeof a === "number") {
        return mixNumber;
    }
    else if (typeof a === "string") {
        return isCSSVariableToken(a)
            ? mixImmediate
            : color.test(a)
                ? mixColor
                : mixComplex;
    }
    else if (Array.isArray(a)) {
        return mixArray;
    }
    else if (typeof a === "object") {
        return color.test(a) ? mixColor : mixObject;
    }
    return mixImmediate;
}
function mixArray(a, b) {
    const output = [...a];
    const numValues = output.length;
    const blendValue = a.map((v, i) => getMixer(v)(v, b[i]));
    return (p) => {
        for (let i = 0; i < numValues; i++) {
            output[i] = blendValue[i](p);
        }
        return output;
    };
}
function mixObject(a, b) {
    const output = { ...a, ...b };
    const blendValue = {};
    for (const key in output) {
        if (a[key] !== undefined && b[key] !== undefined) {
            blendValue[key] = getMixer(a[key])(a[key], b[key]);
        }
    }
    return (v) => {
        for (const key in blendValue) {
            output[key] = blendValue[key](v);
        }
        return output;
    };
}
function matchOrder(origin, target) {
    var _a;
    const orderedOrigin = [];
    const pointers = { color: 0, var: 0, number: 0 };
    for (let i = 0; i < target.values.length; i++) {
        const type = target.types[i];
        const originIndex = origin.indexes[type][pointers[type]];
        const originValue = (_a = origin.values[originIndex]) !== null && _a !== void 0 ? _a : 0;
        orderedOrigin[i] = originValue;
        pointers[type]++;
    }
    return orderedOrigin;
}
const mixComplex = (origin, target) => {
    const template = complex.createTransformer(target);
    const originStats = analyseComplexValue(origin);
    const targetStats = analyseComplexValue(target);
    const canInterpolate = originStats.indexes.var.length === targetStats.indexes.var.length &&
        originStats.indexes.color.length === targetStats.indexes.color.length &&
        originStats.indexes.number.length >= targetStats.indexes.number.length;
    if (canInterpolate) {
        if ((invisibleValues.has(origin) &&
            !targetStats.values.length) ||
            (invisibleValues.has(target) &&
                !originStats.values.length)) {
            return mixVisibility(origin, target);
        }
        return pipe(mixArray(matchOrder(originStats, targetStats), targetStats.values), template);
    }
    else {
        motionUtils.warning(true, `Complex values '${origin}' and '${target}' too different to mix. Ensure all colors are of the same type, and that each contains the same quantity of number and color values. Falling back to instant transition.`);
        return mixImmediate(origin, target);
    }
};

function mix(from, to, p) {
    if (typeof from === "number" &&
        typeof to === "number" &&
        typeof p === "number") {
        return mixNumber$1(from, to, p);
    }
    const mixer = getMixer(from);
    return mixer(from, to);
}

const velocitySampleDuration = 5; // ms
function calcGeneratorVelocity(resolveValue, t, current) {
    const prevT = Math.max(t - velocitySampleDuration, 0);
    return velocityPerSecond(current - resolveValue(prevT), t - prevT);
}

const springDefaults = {
    // Default spring physics
    stiffness: 100,
    damping: 10,
    mass: 1.0,
    velocity: 0.0,
    // Default duration/bounce-based options
    duration: 800, // in ms
    bounce: 0.3,
    visualDuration: 0.3, // in seconds
    // Rest thresholds
    restSpeed: {
        granular: 0.01,
        default: 2,
    },
    restDelta: {
        granular: 0.005,
        default: 0.5,
    },
    // Limits
    minDuration: 0.01, // in seconds
    maxDuration: 10.0, // in seconds
    minDamping: 0.05,
    maxDamping: 1,
};

const safeMin = 0.001;
function findSpring({ duration = springDefaults.duration, bounce = springDefaults.bounce, velocity = springDefaults.velocity, mass = springDefaults.mass, }) {
    let envelope;
    let derivative;
    motionUtils.warning(duration <= motionUtils.secondsToMilliseconds(springDefaults.maxDuration), "Spring duration must be 10 seconds or less");
    let dampingRatio = 1 - bounce;
    /**
     * Restrict dampingRatio and duration to within acceptable ranges.
     */
    dampingRatio = clamp(springDefaults.minDamping, springDefaults.maxDamping, dampingRatio);
    duration = clamp(springDefaults.minDuration, springDefaults.maxDuration, motionUtils.millisecondsToSeconds(duration));
    if (dampingRatio < 1) {
        /**
         * Underdamped spring
         */
        envelope = (undampedFreq) => {
            const exponentialDecay = undampedFreq * dampingRatio;
            const delta = exponentialDecay * duration;
            const a = exponentialDecay - velocity;
            const b = calcAngularFreq(undampedFreq, dampingRatio);
            const c = Math.exp(-delta);
            return safeMin - (a / b) * c;
        };
        derivative = (undampedFreq) => {
            const exponentialDecay = undampedFreq * dampingRatio;
            const delta = exponentialDecay * duration;
            const d = delta * velocity + velocity;
            const e = Math.pow(dampingRatio, 2) * Math.pow(undampedFreq, 2) * duration;
            const f = Math.exp(-delta);
            const g = calcAngularFreq(Math.pow(undampedFreq, 2), dampingRatio);
            const factor = -envelope(undampedFreq) + safeMin > 0 ? -1 : 1;
            return (factor * ((d - e) * f)) / g;
        };
    }
    else {
        /**
         * Critically-damped spring
         */
        envelope = (undampedFreq) => {
            const a = Math.exp(-undampedFreq * duration);
            const b = (undampedFreq - velocity) * duration + 1;
            return -safeMin + a * b;
        };
        derivative = (undampedFreq) => {
            const a = Math.exp(-undampedFreq * duration);
            const b = (velocity - undampedFreq) * (duration * duration);
            return a * b;
        };
    }
    const initialGuess = 5 / duration;
    const undampedFreq = approximateRoot(envelope, derivative, initialGuess);
    duration = motionUtils.secondsToMilliseconds(duration);
    if (isNaN(undampedFreq)) {
        return {
            stiffness: springDefaults.stiffness,
            damping: springDefaults.damping,
            duration,
        };
    }
    else {
        const stiffness = Math.pow(undampedFreq, 2) * mass;
        return {
            stiffness,
            damping: dampingRatio * 2 * Math.sqrt(mass * stiffness),
            duration,
        };
    }
}
const rootIterations = 12;
function approximateRoot(envelope, derivative, initialGuess) {
    let result = initialGuess;
    for (let i = 1; i < rootIterations; i++) {
        result = result - envelope(result) / derivative(result);
    }
    return result;
}
function calcAngularFreq(undampedFreq, dampingRatio) {
    return undampedFreq * Math.sqrt(1 - dampingRatio * dampingRatio);
}

const durationKeys = ["duration", "bounce"];
const physicsKeys = ["stiffness", "damping", "mass"];
function isSpringType(options, keys) {
    return keys.some((key) => options[key] !== undefined);
}
function getSpringOptions(options) {
    let springOptions = {
        velocity: springDefaults.velocity,
        stiffness: springDefaults.stiffness,
        damping: springDefaults.damping,
        mass: springDefaults.mass,
        isResolvedFromDuration: false,
        ...options,
    };
    // stiffness/damping/mass overrides duration/bounce
    if (!isSpringType(options, physicsKeys) &&
        isSpringType(options, durationKeys)) {
        if (options.visualDuration) {
            const visualDuration = options.visualDuration;
            const root = (2 * Math.PI) / (visualDuration * 1.2);
            const stiffness = root * root;
            const damping = 2 *
                clamp(0.05, 1, 1 - (options.bounce || 0)) *
                Math.sqrt(stiffness);
            springOptions = {
                ...springOptions,
                mass: springDefaults.mass,
                stiffness,
                damping,
            };
        }
        else {
            const derived = findSpring(options);
            springOptions = {
                ...springOptions,
                ...derived,
                mass: springDefaults.mass,
            };
            springOptions.isResolvedFromDuration = true;
        }
    }
    return springOptions;
}
function spring(optionsOrVisualDuration = springDefaults.visualDuration, bounce = springDefaults.bounce) {
    const options = typeof optionsOrVisualDuration !== "object"
        ? {
            visualDuration: optionsOrVisualDuration,
            keyframes: [0, 1],
            bounce,
        }
        : optionsOrVisualDuration;
    let { restSpeed, restDelta } = options;
    const origin = options.keyframes[0];
    const target = options.keyframes[options.keyframes.length - 1];
    /**
     * This is the Iterator-spec return value. We ensure it's mutable rather than using a generator
     * to reduce GC during animation.
     */
    const state = { done: false, value: origin };
    const { stiffness, damping, mass, duration, velocity, isResolvedFromDuration, } = getSpringOptions({
        ...options,
        velocity: -motionUtils.millisecondsToSeconds(options.velocity || 0),
    });
    const initialVelocity = velocity || 0.0;
    const dampingRatio = damping / (2 * Math.sqrt(stiffness * mass));
    const initialDelta = target - origin;
    const undampedAngularFreq = motionUtils.millisecondsToSeconds(Math.sqrt(stiffness / mass));
    /**
     * If we're working on a granular scale, use smaller defaults for determining
     * when the spring is finished.
     *
     * These defaults have been selected emprically based on what strikes a good
     * ratio between feeling good and finishing as soon as changes are imperceptible.
     */
    const isGranularScale = Math.abs(initialDelta) < 5;
    restSpeed || (restSpeed = isGranularScale
        ? springDefaults.restSpeed.granular
        : springDefaults.restSpeed.default);
    restDelta || (restDelta = isGranularScale
        ? springDefaults.restDelta.granular
        : springDefaults.restDelta.default);
    let resolveSpring;
    if (dampingRatio < 1) {
        const angularFreq = calcAngularFreq(undampedAngularFreq, dampingRatio);
        // Underdamped spring
        resolveSpring = (t) => {
            const envelope = Math.exp(-dampingRatio * undampedAngularFreq * t);
            return (target -
                envelope *
                    (((initialVelocity +
                        dampingRatio * undampedAngularFreq * initialDelta) /
                        angularFreq) *
                        Math.sin(angularFreq * t) +
                        initialDelta * Math.cos(angularFreq * t)));
        };
    }
    else if (dampingRatio === 1) {
        // Critically damped spring
        resolveSpring = (t) => target -
            Math.exp(-undampedAngularFreq * t) *
                (initialDelta +
                    (initialVelocity + undampedAngularFreq * initialDelta) * t);
    }
    else {
        // Overdamped spring
        const dampedAngularFreq = undampedAngularFreq * Math.sqrt(dampingRatio * dampingRatio - 1);
        resolveSpring = (t) => {
            const envelope = Math.exp(-dampingRatio * undampedAngularFreq * t);
            // When performing sinh or cosh values can hit Infinity so we cap them here
            const freqForT = Math.min(dampedAngularFreq * t, 300);
            return (target -
                (envelope *
                    ((initialVelocity +
                        dampingRatio * undampedAngularFreq * initialDelta) *
                        Math.sinh(freqForT) +
                        dampedAngularFreq *
                            initialDelta *
                            Math.cosh(freqForT))) /
                    dampedAngularFreq);
        };
    }
    const generator = {
        calculatedDuration: isResolvedFromDuration ? duration || null : null,
        next: (t) => {
            const current = resolveSpring(t);
            if (!isResolvedFromDuration) {
                let currentVelocity = 0.0;
                /**
                 * We only need to calculate velocity for under-damped springs
                 * as over- and critically-damped springs can't overshoot, so
                 * checking only for displacement is enough.
                 */
                if (dampingRatio < 1) {
                    currentVelocity =
                        t === 0
                            ? motionUtils.secondsToMilliseconds(initialVelocity)
                            : calcGeneratorVelocity(resolveSpring, t, current);
                }
                const isBelowVelocityThreshold = Math.abs(currentVelocity) <= restSpeed;
                const isBelowDisplacementThreshold = Math.abs(target - current) <= restDelta;
                state.done =
                    isBelowVelocityThreshold && isBelowDisplacementThreshold;
            }
            else {
                state.done = t >= duration;
            }
            state.value = state.done ? target : current;
            return state;
        },
        toString: () => {
            const calculatedDuration = Math.min(motionDom.calcGeneratorDuration(generator), motionDom.maxGeneratorDuration);
            const easing = motionDom.generateLinearEasing((progress) => generator.next(calculatedDuration * progress).value, calculatedDuration, 30);
            return calculatedDuration + "ms " + easing;
        },
    };
    return generator;
}

function inertia({ keyframes, velocity = 0.0, power = 0.8, timeConstant = 325, bounceDamping = 10, bounceStiffness = 500, modifyTarget, min, max, restDelta = 0.5, restSpeed, }) {
    const origin = keyframes[0];
    const state = {
        done: false,
        value: origin,
    };
    const isOutOfBounds = (v) => (min !== undefined && v < min) || (max !== undefined && v > max);
    const nearestBoundary = (v) => {
        if (min === undefined)
            return max;
        if (max === undefined)
            return min;
        return Math.abs(min - v) < Math.abs(max - v) ? min : max;
    };
    let amplitude = power * velocity;
    const ideal = origin + amplitude;
    const target = modifyTarget === undefined ? ideal : modifyTarget(ideal);
    /**
     * If the target has changed we need to re-calculate the amplitude, otherwise
     * the animation will start from the wrong position.
     */
    if (target !== ideal)
        amplitude = target - origin;
    const calcDelta = (t) => -amplitude * Math.exp(-t / timeConstant);
    const calcLatest = (t) => target + calcDelta(t);
    const applyFriction = (t) => {
        const delta = calcDelta(t);
        const latest = calcLatest(t);
        state.done = Math.abs(delta) <= restDelta;
        state.value = state.done ? target : latest;
    };
    /**
     * Ideally this would resolve for t in a stateless way, we could
     * do that by always precalculating the animation but as we know
     * this will be done anyway we can assume that spring will
     * be discovered during that.
     */
    let timeReachedBoundary;
    let spring$1;
    const checkCatchBoundary = (t) => {
        if (!isOutOfBounds(state.value))
            return;
        timeReachedBoundary = t;
        spring$1 = spring({
            keyframes: [state.value, nearestBoundary(state.value)],
            velocity: calcGeneratorVelocity(calcLatest, t, state.value), // TODO: This should be passing * 1000
            damping: bounceDamping,
            stiffness: bounceStiffness,
            restDelta,
            restSpeed,
        });
    };
    checkCatchBoundary(0);
    return {
        calculatedDuration: null,
        next: (t) => {
            /**
             * We need to resolve the friction to figure out if we need a
             * spring but we don't want to do this twice per frame. So here
             * we flag if we updated for this frame and later if we did
             * we can skip doing it again.
             */
            let hasUpdatedFrame = false;
            if (!spring$1 && timeReachedBoundary === undefined) {
                hasUpdatedFrame = true;
                applyFriction(t);
                checkCatchBoundary(t);
            }
            /**
             * If we have a spring and the provided t is beyond the moment the friction
             * animation crossed the min/max boundary, use the spring.
             */
            if (timeReachedBoundary !== undefined && t >= timeReachedBoundary) {
                return spring$1.next(t - timeReachedBoundary);
            }
            else {
                !hasUpdatedFrame && applyFriction(t);
                return state;
            }
        },
    };
}

const easeIn = /*@__PURE__*/ cubicBezier(0.42, 0, 1, 1);
const easeOut = /*@__PURE__*/ cubicBezier(0, 0, 0.58, 1);
const easeInOut = /*@__PURE__*/ cubicBezier(0.42, 0, 0.58, 1);

const isEasingArray = (ease) => {
    return Array.isArray(ease) && typeof ease[0] !== "number";
};

const easingLookup = {
    linear: motionUtils.noop,
    easeIn,
    easeInOut,
    easeOut,
    circIn,
    circInOut,
    circOut,
    backIn,
    backInOut,
    backOut,
    anticipate,
};
const easingDefinitionToFunction = (definition) => {
    if (motionDom.isBezierDefinition(definition)) {
        // If cubic bezier definition, create bezier curve
        motionUtils.invariant(definition.length === 4, `Cubic bezier arrays must contain four numerical values.`);
        const [x1, y1, x2, y2] = definition;
        return cubicBezier(x1, y1, x2, y2);
    }
    else if (typeof definition === "string") {
        // Else lookup from table
        motionUtils.invariant(easingLookup[definition] !== undefined, `Invalid easing type '${definition}'`);
        return easingLookup[definition];
    }
    return definition;
};

function createMixers(output, ease, customMixer) {
    const mixers = [];
    const mixerFactory = customMixer || mix;
    const numMixers = output.length - 1;
    for (let i = 0; i < numMixers; i++) {
        let mixer = mixerFactory(output[i], output[i + 1]);
        if (ease) {
            const easingFunction = Array.isArray(ease) ? ease[i] || motionUtils.noop : ease;
            mixer = pipe(easingFunction, mixer);
        }
        mixers.push(mixer);
    }
    return mixers;
}
/**
 * Create a function that maps from a numerical input array to a generic output array.
 *
 * Accepts:
 *   - Numbers
 *   - Colors (hex, hsl, hsla, rgb, rgba)
 *   - Complex (combinations of one or more numbers or strings)
 *
 * ```jsx
 * const mixColor = interpolate([0, 1], ['#fff', '#000'])
 *
 * mixColor(0.5) // 'rgba(128, 128, 128, 1)'
 * ```
 *
 * TODO Revist this approach once we've moved to data models for values,
 * probably not needed to pregenerate mixer functions.
 *
 * @public
 */
function interpolate(input, output, { clamp: isClamp = true, ease, mixer } = {}) {
    const inputLength = input.length;
    motionUtils.invariant(inputLength === output.length, "Both input and output ranges must be the same length");
    /**
     * If we're only provided a single input, we can just make a function
     * that returns the output.
     */
    if (inputLength === 1)
        return () => output[0];
    if (inputLength === 2 && output[0] === output[1])
        return () => output[1];
    const isZeroDeltaRange = input[0] === input[1];
    // If input runs highest -> lowest, reverse both arrays
    if (input[0] > input[inputLength - 1]) {
        input = [...input].reverse();
        output = [...output].reverse();
    }
    const mixers = createMixers(output, ease, mixer);
    const numMixers = mixers.length;
    const interpolator = (v) => {
        if (isZeroDeltaRange && v < input[0])
            return output[0];
        let i = 0;
        if (numMixers > 1) {
            for (; i < input.length - 2; i++) {
                if (v < input[i + 1])
                    break;
            }
        }
        const progressInRange = motionUtils.progress(input[i], input[i + 1], v);
        return mixers[i](progressInRange);
    };
    return isClamp
        ? (v) => interpolator(clamp(input[0], input[inputLength - 1], v))
        : interpolator;
}

function fillOffset(offset, remaining) {
    const min = offset[offset.length - 1];
    for (let i = 1; i <= remaining; i++) {
        const offsetProgress = motionUtils.progress(0, remaining, i);
        offset.push(mixNumber$1(min, 1, offsetProgress));
    }
}

function defaultOffset(arr) {
    const offset = [0];
    fillOffset(offset, arr.length - 1);
    return offset;
}

function convertOffsetToTimes(offset, duration) {
    return offset.map((o) => o * duration);
}

function defaultEasing(values, easing) {
    return values.map(() => easing || easeInOut).splice(0, values.length - 1);
}
function keyframes({ duration = 300, keyframes: keyframeValues, times, ease = "easeInOut", }) {
    /**
     * Easing functions can be externally defined as strings. Here we convert them
     * into actual functions.
     */
    const easingFunctions = isEasingArray(ease)
        ? ease.map(easingDefinitionToFunction)
        : easingDefinitionToFunction(ease);
    /**
     * This is the Iterator-spec return value. We ensure it's mutable rather than using a generator
     * to reduce GC during animation.
     */
    const state = {
        done: false,
        value: keyframeValues[0],
    };
    /**
     * Create a times array based on the provided 0-1 offsets
     */
    const absoluteTimes = convertOffsetToTimes(
    // Only use the provided offsets if they're the correct length
    // TODO Maybe we should warn here if there's a length mismatch
    times && times.length === keyframeValues.length
        ? times
        : defaultOffset(keyframeValues), duration);
    const mapTimeToKeyframe = interpolate(absoluteTimes, keyframeValues, {
        ease: Array.isArray(easingFunctions)
            ? easingFunctions
            : defaultEasing(keyframeValues, easingFunctions),
    });
    return {
        calculatedDuration: duration,
        next: (t) => {
            state.value = mapTimeToKeyframe(t);
            state.done = t >= duration;
            return state;
        },
    };
}

const frameloopDriver = (update) => {
    const passTimestamp = ({ timestamp }) => update(timestamp);
    return {
        start: () => frame.update(passTimestamp, true),
        stop: () => cancelFrame(passTimestamp),
        /**
         * If we're processing this frame we can use the
         * framelocked timestamp to keep things in sync.
         */
        now: () => (frameData.isProcessing ? frameData.timestamp : time.now()),
    };
};

const generators = {
    decay: inertia,
    inertia,
    tween: keyframes,
    keyframes: keyframes,
    spring,
};
const percentToProgress = (percent) => percent / 100;
/**
 * Animation that runs on the main thread. Designed to be WAAPI-spec in the subset of
 * features we expose publically. Mostly the compatibility is to ensure visual identity
 * between both WAAPI and main thread animations.
 */
class MainThreadAnimation extends BaseAnimation {
    constructor(options) {
        super(options);
        /**
         * The time at which the animation was paused.
         */
        this.holdTime = null;
        /**
         * The time at which the animation was cancelled.
         */
        this.cancelTime = null;
        /**
         * The current time of the animation.
         */
        this.currentTime = 0;
        /**
         * Playback speed as a factor. 0 would be stopped, -1 reverse and 2 double speed.
         */
        this.playbackSpeed = 1;
        /**
         * The state of the animation to apply when the animation is resolved. This
         * allows calls to the public API to control the animation before it is resolved,
         * without us having to resolve it first.
         */
        this.pendingPlayState = "running";
        /**
         * The time at which the animation was started.
         */
        this.startTime = null;
        this.state = "idle";
        /**
         * This method is bound to the instance to fix a pattern where
         * animation.stop is returned as a reference from a useEffect.
         */
        this.stop = () => {
            this.resolver.cancel();
            this.isStopped = true;
            if (this.state === "idle")
                return;
            this.teardown();
            const { onStop } = this.options;
            onStop && onStop();
        };
        const { name, motionValue, element, keyframes } = this.options;
        const KeyframeResolver$1 = (element === null || element === void 0 ? void 0 : element.KeyframeResolver) || KeyframeResolver;
        const onResolved = (resolvedKeyframes, finalKeyframe) => this.onKeyframesResolved(resolvedKeyframes, finalKeyframe);
        this.resolver = new KeyframeResolver$1(keyframes, onResolved, name, motionValue, element);
        this.resolver.scheduleResolve();
    }
    flatten() {
        super.flatten();
        // If we've already resolved the animation, re-initialise it
        if (this._resolved) {
            Object.assign(this._resolved, this.initPlayback(this._resolved.keyframes));
        }
    }
    initPlayback(keyframes$1) {
        const { type = "keyframes", repeat = 0, repeatDelay = 0, repeatType, velocity = 0, } = this.options;
        const generatorFactory = motionDom.isGenerator(type)
            ? type
            : generators[type] || keyframes;
        /**
         * If our generator doesn't support mixing numbers, we need to replace keyframes with
         * [0, 100] and then make a function that maps that to the actual keyframes.
         *
         * 100 is chosen instead of 1 as it works nicer with spring animations.
         */
        let mapPercentToKeyframes;
        let mirroredGenerator;
        if (generatorFactory !== keyframes &&
            typeof keyframes$1[0] !== "number") {
            if (process.env.NODE_ENV !== "production") {
                motionUtils.invariant(keyframes$1.length === 2, `Only two keyframes currently supported with spring and inertia animations. Trying to animate ${keyframes$1}`);
            }
            mapPercentToKeyframes = pipe(percentToProgress, mix(keyframes$1[0], keyframes$1[1]));
            keyframes$1 = [0, 100];
        }
        const generator = generatorFactory({ ...this.options, keyframes: keyframes$1 });
        /**
         * If we have a mirror repeat type we need to create a second generator that outputs the
         * mirrored (not reversed) animation and later ping pong between the two generators.
         */
        if (repeatType === "mirror") {
            mirroredGenerator = generatorFactory({
                ...this.options,
                keyframes: [...keyframes$1].reverse(),
                velocity: -velocity,
            });
        }
        /**
         * If duration is undefined and we have repeat options,
         * we need to calculate a duration from the generator.
         *
         * We set it to the generator itself to cache the duration.
         * Any timeline resolver will need to have already precalculated
         * the duration by this step.
         */
        if (generator.calculatedDuration === null) {
            generator.calculatedDuration = motionDom.calcGeneratorDuration(generator);
        }
        const { calculatedDuration } = generator;
        const resolvedDuration = calculatedDuration + repeatDelay;
        const totalDuration = resolvedDuration * (repeat + 1) - repeatDelay;
        return {
            generator,
            mirroredGenerator,
            mapPercentToKeyframes,
            calculatedDuration,
            resolvedDuration,
            totalDuration,
        };
    }
    onPostResolved() {
        const { autoplay = true } = this.options;
        this.play();
        if (this.pendingPlayState === "paused" || !autoplay) {
            this.pause();
        }
        else {
            this.state = this.pendingPlayState;
        }
    }
    tick(timestamp, sample = false) {
        const { resolved } = this;
        // If the animations has failed to resolve, return the final keyframe.
        if (!resolved) {
            const { keyframes } = this.options;
            return { done: true, value: keyframes[keyframes.length - 1] };
        }
        const { finalKeyframe, generator, mirroredGenerator, mapPercentToKeyframes, keyframes, calculatedDuration, totalDuration, resolvedDuration, } = resolved;
        if (this.startTime === null)
            return generator.next(0);
        const { delay, repeat, repeatType, repeatDelay, onUpdate } = this.options;
        /**
         * requestAnimationFrame timestamps can come through as lower than
         * the startTime as set by performance.now(). Here we prevent this,
         * though in the future it could be possible to make setting startTime
         * a pending operation that gets resolved here.
         */
        if (this.speed > 0) {
            this.startTime = Math.min(this.startTime, timestamp);
        }
        else if (this.speed < 0) {
            this.startTime = Math.min(timestamp - totalDuration / this.speed, this.startTime);
        }
        // Update currentTime
        if (sample) {
            this.currentTime = timestamp;
        }
        else if (this.holdTime !== null) {
            this.currentTime = this.holdTime;
        }
        else {
            // Rounding the time because floating point arithmetic is not always accurate, e.g. 3000.367 - 1000.367 =
            // 2000.0000000000002. This is a problem when we are comparing the currentTime with the duration, for
            // example.
            this.currentTime =
                Math.round(timestamp - this.startTime) * this.speed;
        }
        // Rebase on delay
        const timeWithoutDelay = this.currentTime - delay * (this.speed >= 0 ? 1 : -1);
        const isInDelayPhase = this.speed >= 0
            ? timeWithoutDelay < 0
            : timeWithoutDelay > totalDuration;
        this.currentTime = Math.max(timeWithoutDelay, 0);
        // If this animation has finished, set the current time  to the total duration.
        if (this.state === "finished" && this.holdTime === null) {
            this.currentTime = totalDuration;
        }
        let elapsed = this.currentTime;
        let frameGenerator = generator;
        if (repeat) {
            /**
             * Get the current progress (0-1) of the animation. If t is >
             * than duration we'll get values like 2.5 (midway through the
             * third iteration)
             */
            const progress = Math.min(this.currentTime, totalDuration) / resolvedDuration;
            /**
             * Get the current iteration (0 indexed). For instance the floor of
             * 2.5 is 2.
             */
            let currentIteration = Math.floor(progress);
            /**
             * Get the current progress of the iteration by taking the remainder
             * so 2.5 is 0.5 through iteration 2
             */
            let iterationProgress = progress % 1.0;
            /**
             * If iteration progress is 1 we count that as the end
             * of the previous iteration.
             */
            if (!iterationProgress && progress >= 1) {
                iterationProgress = 1;
            }
            iterationProgress === 1 && currentIteration--;
            currentIteration = Math.min(currentIteration, repeat + 1);
            /**
             * Reverse progress if we're not running in "normal" direction
             */
            const isOddIteration = Boolean(currentIteration % 2);
            if (isOddIteration) {
                if (repeatType === "reverse") {
                    iterationProgress = 1 - iterationProgress;
                    if (repeatDelay) {
                        iterationProgress -= repeatDelay / resolvedDuration;
                    }
                }
                else if (repeatType === "mirror") {
                    frameGenerator = mirroredGenerator;
                }
            }
            elapsed = clamp(0, 1, iterationProgress) * resolvedDuration;
        }
        /**
         * If we're in negative time, set state as the initial keyframe.
         * This prevents delay: x, duration: 0 animations from finishing
         * instantly.
         */
        const state = isInDelayPhase
            ? { done: false, value: keyframes[0] }
            : frameGenerator.next(elapsed);
        if (mapPercentToKeyframes) {
            state.value = mapPercentToKeyframes(state.value);
        }
        let { done } = state;
        if (!isInDelayPhase && calculatedDuration !== null) {
            done =
                this.speed >= 0
                    ? this.currentTime >= totalDuration
                    : this.currentTime <= 0;
        }
        const isAnimationFinished = this.holdTime === null &&
            (this.state === "finished" || (this.state === "running" && done));
        if (isAnimationFinished && finalKeyframe !== undefined) {
            state.value = getFinalKeyframe(keyframes, this.options, finalKeyframe);
        }
        if (onUpdate) {
            onUpdate(state.value);
        }
        if (isAnimationFinished) {
            this.finish();
        }
        return state;
    }
    get duration() {
        const { resolved } = this;
        return resolved ? motionUtils.millisecondsToSeconds(resolved.calculatedDuration) : 0;
    }
    get time() {
        return motionUtils.millisecondsToSeconds(this.currentTime);
    }
    set time(newTime) {
        newTime = motionUtils.secondsToMilliseconds(newTime);
        this.currentTime = newTime;
        if (this.holdTime !== null || this.speed === 0) {
            this.holdTime = newTime;
        }
        else if (this.driver) {
            this.startTime = this.driver.now() - newTime / this.speed;
        }
    }
    get speed() {
        return this.playbackSpeed;
    }
    set speed(newSpeed) {
        const hasChanged = this.playbackSpeed !== newSpeed;
        this.playbackSpeed = newSpeed;
        if (hasChanged) {
            this.time = motionUtils.millisecondsToSeconds(this.currentTime);
        }
    }
    play() {
        if (!this.resolver.isScheduled) {
            this.resolver.resume();
        }
        if (!this._resolved) {
            this.pendingPlayState = "running";
            return;
        }
        if (this.isStopped)
            return;
        const { driver = frameloopDriver, onPlay, startTime } = this.options;
        if (!this.driver) {
            this.driver = driver((timestamp) => this.tick(timestamp));
        }
        onPlay && onPlay();
        const now = this.driver.now();
        if (this.holdTime !== null) {
            this.startTime = now - this.holdTime;
        }
        else if (!this.startTime) {
            this.startTime = startTime !== null && startTime !== void 0 ? startTime : this.calcStartTime();
        }
        else if (this.state === "finished") {
            this.startTime = now;
        }
        if (this.state === "finished") {
            this.updateFinishedPromise();
        }
        this.cancelTime = this.startTime;
        this.holdTime = null;
        /**
         * Set playState to running only after we've used it in
         * the previous logic.
         */
        this.state = "running";
        this.driver.start();
    }
    pause() {
        var _a;
        if (!this._resolved) {
            this.pendingPlayState = "paused";
            return;
        }
        this.state = "paused";
        this.holdTime = (_a = this.currentTime) !== null && _a !== void 0 ? _a : 0;
    }
    complete() {
        if (this.state !== "running") {
            this.play();
        }
        this.pendingPlayState = this.state = "finished";
        this.holdTime = null;
    }
    finish() {
        this.teardown();
        this.state = "finished";
        const { onComplete } = this.options;
        onComplete && onComplete();
    }
    cancel() {
        if (this.cancelTime !== null) {
            this.tick(this.cancelTime);
        }
        this.teardown();
        this.updateFinishedPromise();
    }
    teardown() {
        this.state = "idle";
        this.stopDriver();
        this.resolveFinishedPromise();
        this.updateFinishedPromise();
        this.startTime = this.cancelTime = null;
        this.resolver.cancel();
    }
    stopDriver() {
        if (!this.driver)
            return;
        this.driver.stop();
        this.driver = undefined;
    }
    sample(time) {
        this.startTime = 0;
        return this.tick(time, true);
    }
}

/**
 * A list of values that can be hardware-accelerated.
 */
const acceleratedValues = new Set([
    "opacity",
    "clipPath",
    "filter",
    "transform",
    // TODO: Can be accelerated but currently disabled until https://issues.chromium.org/issues/41491098 is resolved
    // or until we implement support for linear() easing.
    // "background-color"
]);

function startWaapiAnimation(element, valueName, keyframes, { delay = 0, duration = 300, repeat = 0, repeatType = "loop", ease = "easeInOut", times, } = {}) {
    const keyframeOptions = { [valueName]: keyframes };
    if (times)
        keyframeOptions.offset = times;
    const easing = motionDom.mapEasingToNativeEasing(ease, duration);
    /**
     * If this is an easing array, apply to keyframes, not animation as a whole
     */
    if (Array.isArray(easing))
        keyframeOptions.easing = easing;
    return element.animate(keyframeOptions, {
        delay,
        duration,
        easing: !Array.isArray(easing) ? easing : "linear",
        fill: "both",
        iterations: repeat + 1,
        direction: repeatType === "reverse" ? "alternate" : "normal",
    });
}

const supportsWaapi = /*@__PURE__*/ motionUtils.memo(() => Object.hasOwnProperty.call(Element.prototype, "animate"));

/**
 * 10ms is chosen here as it strikes a balance between smooth
 * results (more than one keyframe per frame at 60fps) and
 * keyframe quantity.
 */
const sampleDelta = 10; //ms
/**
 * Implement a practical max duration for keyframe generation
 * to prevent infinite loops
 */
const maxDuration = 20000;
/**
 * Check if an animation can run natively via WAAPI or requires pregenerated keyframes.
 * WAAPI doesn't support spring or function easings so we run these as JS animation before
 * handing off.
 */
function requiresPregeneratedKeyframes(options) {
    return (motionDom.isGenerator(options.type) ||
        options.type === "spring" ||
        !motionDom.isWaapiSupportedEasing(options.ease));
}
function pregenerateKeyframes(keyframes, options) {
    /**
     * Create a main-thread animation to pregenerate keyframes.
     * We sample this at regular intervals to generate keyframes that we then
     * linearly interpolate between.
     */
    const sampleAnimation = new MainThreadAnimation({
        ...options,
        keyframes,
        repeat: 0,
        delay: 0,
        isGenerator: true,
    });
    let state = { done: false, value: keyframes[0] };
    const pregeneratedKeyframes = [];
    /**
     * Bail after 20 seconds of pre-generated keyframes as it's likely
     * we're heading for an infinite loop.
     */
    let t = 0;
    while (!state.done && t < maxDuration) {
        state = sampleAnimation.sample(t);
        pregeneratedKeyframes.push(state.value);
        t += sampleDelta;
    }
    return {
        times: undefined,
        keyframes: pregeneratedKeyframes,
        duration: t - sampleDelta,
        ease: "linear",
    };
}
const unsupportedEasingFunctions = {
    anticipate,
    backInOut,
    circInOut,
};
function isUnsupportedEase(key) {
    return key in unsupportedEasingFunctions;
}
class AcceleratedAnimation extends BaseAnimation {
    constructor(options) {
        super(options);
        const { name, motionValue, element, keyframes } = this.options;
        this.resolver = new DOMKeyframesResolver(keyframes, (resolvedKeyframes, finalKeyframe) => this.onKeyframesResolved(resolvedKeyframes, finalKeyframe), name, motionValue, element);
        this.resolver.scheduleResolve();
    }
    initPlayback(keyframes, finalKeyframe) {
        let { duration = 300, times, ease, type, motionValue, name, startTime, } = this.options;
        /**
         * If element has since been unmounted, return false to indicate
         * the animation failed to initialised.
         */
        if (!motionValue.owner || !motionValue.owner.current) {
            return false;
        }
        /**
         * If the user has provided an easing function name that isn't supported
         * by WAAPI (like "anticipate"), we need to provide the corressponding
         * function. This will later get converted to a linear() easing function.
         */
        if (typeof ease === "string" &&
            motionDom.supportsLinearEasing() &&
            isUnsupportedEase(ease)) {
            ease = unsupportedEasingFunctions[ease];
        }
        /**
         * If this animation needs pre-generated keyframes then generate.
         */
        if (requiresPregeneratedKeyframes(this.options)) {
            const { onComplete, onUpdate, motionValue, element, ...options } = this.options;
            const pregeneratedAnimation = pregenerateKeyframes(keyframes, options);
            keyframes = pregeneratedAnimation.keyframes;
            // If this is a very short animation, ensure we have
            // at least two keyframes to animate between as older browsers
            // can't animate between a single keyframe.
            if (keyframes.length === 1) {
                keyframes[1] = keyframes[0];
            }
            duration = pregeneratedAnimation.duration;
            times = pregeneratedAnimation.times;
            ease = pregeneratedAnimation.ease;
            type = "keyframes";
        }
        const animation = startWaapiAnimation(motionValue.owner.current, name, keyframes, { ...this.options, duration, times, ease });
        // Override the browser calculated startTime with one synchronised to other JS
        // and WAAPI animations starting this event loop.
        animation.startTime = startTime !== null && startTime !== void 0 ? startTime : this.calcStartTime();
        if (this.pendingTimeline) {
            motionDom.attachTimeline(animation, this.pendingTimeline);
            this.pendingTimeline = undefined;
        }
        else {
            /**
             * Prefer the `onfinish` prop as it's more widely supported than
             * the `finished` promise.
             *
             * Here, we synchronously set the provided MotionValue to the end
             * keyframe. If we didn't, when the WAAPI animation is finished it would
             * be removed from the element which would then revert to its old styles.
             */
            animation.onfinish = () => {
                const { onComplete } = this.options;
                motionValue.set(getFinalKeyframe(keyframes, this.options, finalKeyframe));
                onComplete && onComplete();
                this.cancel();
                this.resolveFinishedPromise();
            };
        }
        return {
            animation,
            duration,
            times,
            type,
            ease,
            keyframes: keyframes,
        };
    }
    get duration() {
        const { resolved } = this;
        if (!resolved)
            return 0;
        const { duration } = resolved;
        return motionUtils.millisecondsToSeconds(duration);
    }
    get time() {
        const { resolved } = this;
        if (!resolved)
            return 0;
        const { animation } = resolved;
        return motionUtils.millisecondsToSeconds(animation.currentTime || 0);
    }
    set time(newTime) {
        const { resolved } = this;
        if (!resolved)
            return;
        const { animation } = resolved;
        animation.currentTime = motionUtils.secondsToMilliseconds(newTime);
    }
    get speed() {
        const { resolved } = this;
        if (!resolved)
            return 1;
        const { animation } = resolved;
        return animation.playbackRate;
    }
    set speed(newSpeed) {
        const { resolved } = this;
        if (!resolved)
            return;
        const { animation } = resolved;
        animation.playbackRate = newSpeed;
    }
    get state() {
        const { resolved } = this;
        if (!resolved)
            return "idle";
        const { animation } = resolved;
        return animation.playState;
    }
    get startTime() {
        const { resolved } = this;
        if (!resolved)
            return null;
        const { animation } = resolved;
        // Coerce to number as TypeScript incorrectly types this
        // as CSSNumberish
        return animation.startTime;
    }
    /**
     * Replace the default DocumentTimeline with another AnimationTimeline.
     * Currently used for scroll animations.
     */
    attachTimeline(timeline) {
        if (!this._resolved) {
            this.pendingTimeline = timeline;
        }
        else {
            const { resolved } = this;
            if (!resolved)
                return motionUtils.noop;
            const { animation } = resolved;
            motionDom.attachTimeline(animation, timeline);
        }
        return motionUtils.noop;
    }
    play() {
        if (this.isStopped)
            return;
        const { resolved } = this;
        if (!resolved)
            return;
        const { animation } = resolved;
        if (animation.playState === "finished") {
            this.updateFinishedPromise();
        }
        animation.play();
    }
    pause() {
        const { resolved } = this;
        if (!resolved)
            return;
        const { animation } = resolved;
        animation.pause();
    }
    stop() {
        this.resolver.cancel();
        this.isStopped = true;
        if (this.state === "idle")
            return;
        this.resolveFinishedPromise();
        this.updateFinishedPromise();
        const { resolved } = this;
        if (!resolved)
            return;
        const { animation, keyframes, duration, type, ease, times } = resolved;
        if (animation.playState === "idle" ||
            animation.playState === "finished") {
            return;
        }
        /**
         * WAAPI doesn't natively have any interruption capabilities.
         *
         * Rather than read commited styles back out of the DOM, we can
         * create a renderless JS animation and sample it twice to calculate
         * its current value, "previous" value, and therefore allow
         * Motion to calculate velocity for any subsequent animation.
         */
        if (this.time) {
            const { motionValue, onUpdate, onComplete, element, ...options } = this.options;
            const sampleAnimation = new MainThreadAnimation({
                ...options,
                keyframes,
                duration,
                type,
                ease,
                times,
                isGenerator: true,
            });
            const sampleTime = motionUtils.secondsToMilliseconds(this.time);
            motionValue.setWithVelocity(sampleAnimation.sample(sampleTime - sampleDelta).value, sampleAnimation.sample(sampleTime).value, sampleDelta);
        }
        const { onStop } = this.options;
        onStop && onStop();
        this.cancel();
    }
    complete() {
        const { resolved } = this;
        if (!resolved)
            return;
        resolved.animation.finish();
    }
    cancel() {
        const { resolved } = this;
        if (!resolved)
            return;
        resolved.animation.cancel();
    }
    static supports(options) {
        const { motionValue, name, repeatDelay, repeatType, damping, type } = options;
        if (!motionValue ||
            !motionValue.owner ||
            !(motionValue.owner.current instanceof HTMLElement)) {
            return false;
        }
        const { onUpdate, transformTemplate } = motionValue.owner.getProps();
        return (supportsWaapi() &&
            name &&
            acceleratedValues.has(name) &&
            /**
             * If we're outputting values to onUpdate then we can't use WAAPI as there's
             * no way to read the value from WAAPI every frame.
             */
            !onUpdate &&
            !transformTemplate &&
            !repeatDelay &&
            repeatType !== "mirror" &&
            damping !== 0 &&
            type !== "inertia");
    }
}

const underDampedSpring = {
    type: "spring",
    stiffness: 500,
    damping: 25,
    restSpeed: 10,
};
const criticallyDampedSpring = (target) => ({
    type: "spring",
    stiffness: 550,
    damping: target === 0 ? 2 * Math.sqrt(550) : 30,
    restSpeed: 10,
});
const keyframesTransition = {
    type: "keyframes",
    duration: 0.8,
};
/**
 * Default easing curve is a slightly shallower version of
 * the default browser easing curve.
 */
const ease = {
    type: "keyframes",
    ease: [0.25, 0.1, 0.35, 1],
    duration: 0.3,
};
const getDefaultTransition = (valueKey, { keyframes }) => {
    if (keyframes.length > 2) {
        return keyframesTransition;
    }
    else if (transformProps.has(valueKey)) {
        return valueKey.startsWith("scale")
            ? criticallyDampedSpring(keyframes[1])
            : underDampedSpring;
    }
    return ease;
};

/**
 * Decide whether a transition is defined on a given Transition.
 * This filters out orchestration options and returns true
 * if any options are left.
 */
function isTransitionDefined({ when, delay: _delay, delayChildren, staggerChildren, staggerDirection, repeat, repeatType, repeatDelay, from, elapsed, ...transition }) {
    return !!Object.keys(transition).length;
}

const animateMotionValue = (name, value, target, transition = {}, element, isHandoff) => (onComplete) => {
    const valueTransition = motionDom.getValueTransition(transition, name) || {};
    /**
     * Most transition values are currently completely overwritten by value-specific
     * transitions. In the future it'd be nicer to blend these transitions. But for now
     * delay actually does inherit from the root transition if not value-specific.
     */
    const delay = valueTransition.delay || transition.delay || 0;
    /**
     * Elapsed isn't a public transition option but can be passed through from
     * optimized appear effects in milliseconds.
     */
    let { elapsed = 0 } = transition;
    elapsed = elapsed - motionUtils.secondsToMilliseconds(delay);
    let options = {
        keyframes: Array.isArray(target) ? target : [null, target],
        ease: "easeOut",
        velocity: value.getVelocity(),
        ...valueTransition,
        delay: -elapsed,
        onUpdate: (v) => {
            value.set(v);
            valueTransition.onUpdate && valueTransition.onUpdate(v);
        },
        onComplete: () => {
            onComplete();
            valueTransition.onComplete && valueTransition.onComplete();
        },
        name,
        motionValue: value,
        element: isHandoff ? undefined : element,
    };
    /**
     * If there's no transition defined for this value, we can generate
     * unqiue transition settings for this value.
     */
    if (!isTransitionDefined(valueTransition)) {
        options = {
            ...options,
            ...getDefaultTransition(name, options),
        };
    }
    /**
     * Both WAAPI and our internal animation functions use durations
     * as defined by milliseconds, while our external API defines them
     * as seconds.
     */
    if (options.duration) {
        options.duration = motionUtils.secondsToMilliseconds(options.duration);
    }
    if (options.repeatDelay) {
        options.repeatDelay = motionUtils.secondsToMilliseconds(options.repeatDelay);
    }
    if (options.from !== undefined) {
        options.keyframes[0] = options.from;
    }
    let shouldSkip = false;
    if (options.type === false ||
        (options.duration === 0 && !options.repeatDelay)) {
        options.duration = 0;
        if (options.delay === 0) {
            shouldSkip = true;
        }
    }
    /**
     * If we can or must skip creating the animation, and apply only
     * the final keyframe, do so. We also check once keyframes are resolved but
     * this early check prevents the need to create an animation at all.
     */
    if (shouldSkip && !isHandoff && value.get() !== undefined) {
        const finalKeyframe = getFinalKeyframe(options.keyframes, valueTransition);
        if (finalKeyframe !== undefined) {
            frame.update(() => {
                options.onUpdate(finalKeyframe);
                options.onComplete();
            });
            // We still want to return some animation controls here rather
            // than returning undefined
            return new motionDom.GroupPlaybackControls([]);
        }
    }
    /**
     * Animate via WAAPI if possible. If this is a handoff animation, the optimised animation will be running via
     * WAAPI. Therefore, this animation must be JS to ensure it runs "under" the
     * optimised animation.
     */
    if (!isHandoff && AcceleratedAnimation.supports(options)) {
        return new AcceleratedAnimation(options);
    }
    else {
        return new MainThreadAnimation(options);
    }
};

/**
 * Decide whether we should block this animation. Previously, we achieved this
 * just by checking whether the key was listed in protectedKeys, but this
 * posed problems if an animation was triggered by afterChildren and protectedKeys
 * had been set to true in the meantime.
 */
function shouldBlockAnimation({ protectedKeys, needsAnimating }, key) {
    const shouldBlock = protectedKeys.hasOwnProperty(key) && needsAnimating[key] !== true;
    needsAnimating[key] = false;
    return shouldBlock;
}
function animateTarget(visualElement, targetAndTransition, { delay = 0, transitionOverride, type } = {}) {
    var _a;
    let { transition = visualElement.getDefaultTransition(), transitionEnd, ...target } = targetAndTransition;
    if (transitionOverride)
        transition = transitionOverride;
    const animations = [];
    const animationTypeState = type &&
        visualElement.animationState &&
        visualElement.animationState.getState()[type];
    for (const key in target) {
        const value = visualElement.getValue(key, (_a = visualElement.latestValues[key]) !== null && _a !== void 0 ? _a : null);
        const valueTarget = target[key];
        if (valueTarget === undefined ||
            (animationTypeState &&
                shouldBlockAnimation(animationTypeState, key))) {
            continue;
        }
        const valueTransition = {
            delay,
            ...motionDom.getValueTransition(transition || {}, key),
        };
        /**
         * If this is the first time a value is being animated, check
         * to see if we're handling off from an existing animation.
         */
        let isHandoff = false;
        if (window.MotionHandoffAnimation) {
            const appearId = getOptimisedAppearId(visualElement);
            if (appearId) {
                const startTime = window.MotionHandoffAnimation(appearId, key, frame);
                if (startTime !== null) {
                    valueTransition.startTime = startTime;
                    isHandoff = true;
                }
            }
        }
        addValueToWillChange(visualElement, key);
        value.start(animateMotionValue(key, value, valueTarget, visualElement.shouldReduceMotion && positionalKeys.has(key)
            ? { type: false }
            : valueTransition, visualElement, isHandoff));
        const animation = value.animation;
        if (animation) {
            animations.push(animation);
        }
    }
    if (transitionEnd) {
        Promise.all(animations).then(() => {
            frame.update(() => {
                transitionEnd && setTarget(visualElement, transitionEnd);
            });
        });
    }
    return animations;
}

function animateVariant(visualElement, variant, options = {}) {
    var _a;
    const resolved = resolveVariant(visualElement, variant, options.type === "exit"
        ? (_a = visualElement.presenceContext) === null || _a === void 0 ? void 0 : _a.custom
        : undefined);
    let { transition = visualElement.getDefaultTransition() || {} } = resolved || {};
    if (options.transitionOverride) {
        transition = options.transitionOverride;
    }
    /**
     * If we have a variant, create a callback that runs it as an animation.
     * Otherwise, we resolve a Promise immediately for a composable no-op.
     */
    const getAnimation = resolved
        ? () => Promise.all(animateTarget(visualElement, resolved, options))
        : () => Promise.resolve();
    /**
     * If we have children, create a callback that runs all their animations.
     * Otherwise, we resolve a Promise immediately for a composable no-op.
     */
    const getChildAnimations = visualElement.variantChildren && visualElement.variantChildren.size
        ? (forwardDelay = 0) => {
            const { delayChildren = 0, staggerChildren, staggerDirection, } = transition;
            return animateChildren(visualElement, variant, delayChildren + forwardDelay, staggerChildren, staggerDirection, options);
        }
        : () => Promise.resolve();
    /**
     * If the transition explicitly defines a "when" option, we need to resolve either
     * this animation or all children animations before playing the other.
     */
    const { when } = transition;
    if (when) {
        const [first, last] = when === "beforeChildren"
            ? [getAnimation, getChildAnimations]
            : [getChildAnimations, getAnimation];
        return first().then(() => last());
    }
    else {
        return Promise.all([getAnimation(), getChildAnimations(options.delay)]);
    }
}
function animateChildren(visualElement, variant, delayChildren = 0, staggerChildren = 0, staggerDirection = 1, options) {
    const animations = [];
    const maxStaggerDuration = (visualElement.variantChildren.size - 1) * staggerChildren;
    const generateStaggerDuration = staggerDirection === 1
        ? (i = 0) => i * staggerChildren
        : (i = 0) => maxStaggerDuration - i * staggerChildren;
    Array.from(visualElement.variantChildren)
        .sort(sortByTreeOrder)
        .forEach((child, i) => {
        child.notify("AnimationStart", variant);
        animations.push(animateVariant(child, variant, {
            ...options,
            delay: delayChildren + generateStaggerDuration(i),
        }).then(() => child.notify("AnimationComplete", variant)));
    });
    return Promise.all(animations);
}
function sortByTreeOrder(a, b) {
    return a.sortNodePosition(b);
}

function animateVisualElement(visualElement, definition, options = {}) {
    visualElement.notify("AnimationStart", definition);
    let animation;
    if (Array.isArray(definition)) {
        const animations = definition.map((variant) => animateVariant(visualElement, variant, options));
        animation = Promise.all(animations);
    }
    else if (typeof definition === "string") {
        animation = animateVariant(visualElement, definition, options);
    }
    else {
        const resolvedDefinition = typeof definition === "function"
            ? resolveVariant(visualElement, definition, options.custom)
            : definition;
        animation = Promise.all(animateTarget(visualElement, resolvedDefinition, options));
    }
    return animation.then(() => {
        visualElement.notify("AnimationComplete", definition);
    });
}

const numVariantProps = variantProps.length;
function getVariantContext(visualElement) {
    if (!visualElement)
        return undefined;
    if (!visualElement.isControllingVariants) {
        const context = visualElement.parent
            ? getVariantContext(visualElement.parent) || {}
            : {};
        if (visualElement.props.initial !== undefined) {
            context.initial = visualElement.props.initial;
        }
        return context;
    }
    const context = {};
    for (let i = 0; i < numVariantProps; i++) {
        const name = variantProps[i];
        const prop = visualElement.props[name];
        if (isVariantLabel(prop) || prop === false) {
            context[name] = prop;
        }
    }
    return context;
}

const reversePriorityOrder = [...variantPriorityOrder].reverse();
const numAnimationTypes = variantPriorityOrder.length;
function animateList(visualElement) {
    return (animations) => Promise.all(animations.map(({ animation, options }) => animateVisualElement(visualElement, animation, options)));
}
function createAnimationState(visualElement) {
    let animate = animateList(visualElement);
    let state = createState();
    let isInitialRender = true;
    /**
     * This function will be used to reduce the animation definitions for
     * each active animation type into an object of resolved values for it.
     */
    const buildResolvedTypeValues = (type) => (acc, definition) => {
        var _a;
        const resolved = resolveVariant(visualElement, definition, type === "exit"
            ? (_a = visualElement.presenceContext) === null || _a === void 0 ? void 0 : _a.custom
            : undefined);
        if (resolved) {
            const { transition, transitionEnd, ...target } = resolved;
            acc = { ...acc, ...target, ...transitionEnd };
        }
        return acc;
    };
    /**
     * This just allows us to inject mocked animation functions
     * @internal
     */
    function setAnimateFunction(makeAnimator) {
        animate = makeAnimator(visualElement);
    }
    /**
     * When we receive new props, we need to:
     * 1. Create a list of protected keys for each type. This is a directory of
     *    value keys that are currently being "handled" by types of a higher priority
     *    so that whenever an animation is played of a given type, these values are
     *    protected from being animated.
     * 2. Determine if an animation type needs animating.
     * 3. Determine if any values have been removed from a type and figure out
     *    what to animate those to.
     */
    function animateChanges(changedActiveType) {
        const { props } = visualElement;
        const context = getVariantContext(visualElement.parent) || {};
        /**
         * A list of animations that we'll build into as we iterate through the animation
         * types. This will get executed at the end of the function.
         */
        const animations = [];
        /**
         * Keep track of which values have been removed. Then, as we hit lower priority
         * animation types, we can check if they contain removed values and animate to that.
         */
        const removedKeys = new Set();
        /**
         * A dictionary of all encountered keys. This is an object to let us build into and
         * copy it without iteration. Each time we hit an animation type we set its protected
         * keys - the keys its not allowed to animate - to the latest version of this object.
         */
        let encounteredKeys = {};
        /**
         * If a variant has been removed at a given index, and this component is controlling
         * variant animations, we want to ensure lower-priority variants are forced to animate.
         */
        let removedVariantIndex = Infinity;
        /**
         * Iterate through all animation types in reverse priority order. For each, we want to
         * detect which values it's handling and whether or not they've changed (and therefore
         * need to be animated). If any values have been removed, we want to detect those in
         * lower priority props and flag for animation.
         */
        for (let i = 0; i < numAnimationTypes; i++) {
            const type = reversePriorityOrder[i];
            const typeState = state[type];
            const prop = props[type] !== undefined
                ? props[type]
                : context[type];
            const propIsVariant = isVariantLabel(prop);
            /**
             * If this type has *just* changed isActive status, set activeDelta
             * to that status. Otherwise set to null.
             */
            const activeDelta = type === changedActiveType ? typeState.isActive : null;
            if (activeDelta === false)
                removedVariantIndex = i;
            /**
             * If this prop is an inherited variant, rather than been set directly on the
             * component itself, we want to make sure we allow the parent to trigger animations.
             *
             * TODO: Can probably change this to a !isControllingVariants check
             */
            let isInherited = prop === context[type] &&
                prop !== props[type] &&
                propIsVariant;
            /**
             *
             */
            if (isInherited &&
                isInitialRender &&
                visualElement.manuallyAnimateOnMount) {
                isInherited = false;
            }
            /**
             * Set all encountered keys so far as the protected keys for this type. This will
             * be any key that has been animated or otherwise handled by active, higher-priortiy types.
             */
            typeState.protectedKeys = { ...encounteredKeys };
            // Check if we can skip analysing this prop early
            if (
            // If it isn't active and hasn't *just* been set as inactive
            (!typeState.isActive && activeDelta === null) ||
                // If we didn't and don't have any defined prop for this animation type
                (!prop && !typeState.prevProp) ||
                // Or if the prop doesn't define an animation
                isAnimationControls(prop) ||
                typeof prop === "boolean") {
                continue;
            }
            /**
             * As we go look through the values defined on this type, if we detect
             * a changed value or a value that was removed in a higher priority, we set
             * this to true and add this prop to the animation list.
             */
            const variantDidChange = checkVariantsDidChange(typeState.prevProp, prop);
            let shouldAnimateType = variantDidChange ||
                // If we're making this variant active, we want to always make it active
                (type === changedActiveType &&
                    typeState.isActive &&
                    !isInherited &&
                    propIsVariant) ||
                // If we removed a higher-priority variant (i is in reverse order)
                (i > removedVariantIndex && propIsVariant);
            let handledRemovedValues = false;
            /**
             * As animations can be set as variant lists, variants or target objects, we
             * coerce everything to an array if it isn't one already
             */
            const definitionList = Array.isArray(prop) ? prop : [prop];
            /**
             * Build an object of all the resolved values. We'll use this in the subsequent
             * animateChanges calls to determine whether a value has changed.
             */
            let resolvedValues = definitionList.reduce(buildResolvedTypeValues(type), {});
            if (activeDelta === false)
                resolvedValues = {};
            /**
             * Now we need to loop through all the keys in the prev prop and this prop,
             * and decide:
             * 1. If the value has changed, and needs animating
             * 2. If it has been removed, and needs adding to the removedKeys set
             * 3. If it has been removed in a higher priority type and needs animating
             * 4. If it hasn't been removed in a higher priority but hasn't changed, and
             *    needs adding to the type's protectedKeys list.
             */
            const { prevResolvedValues = {} } = typeState;
            const allKeys = {
                ...prevResolvedValues,
                ...resolvedValues,
            };
            const markToAnimate = (key) => {
                shouldAnimateType = true;
                if (removedKeys.has(key)) {
                    handledRemovedValues = true;
                    removedKeys.delete(key);
                }
                typeState.needsAnimating[key] = true;
                const motionValue = visualElement.getValue(key);
                if (motionValue)
                    motionValue.liveStyle = false;
            };
            for (const key in allKeys) {
                const next = resolvedValues[key];
                const prev = prevResolvedValues[key];
                // If we've already handled this we can just skip ahead
                if (encounteredKeys.hasOwnProperty(key))
                    continue;
                /**
                 * If the value has changed, we probably want to animate it.
                 */
                let valueHasChanged = false;
                if (isKeyframesTarget(next) && isKeyframesTarget(prev)) {
                    valueHasChanged = !shallowCompare(next, prev);
                }
                else {
                    valueHasChanged = next !== prev;
                }
                if (valueHasChanged) {
                    if (next !== undefined && next !== null) {
                        // If next is defined and doesn't equal prev, it needs animating
                        markToAnimate(key);
                    }
                    else {
                        // If it's undefined, it's been removed.
                        removedKeys.add(key);
                    }
                }
                else if (next !== undefined && removedKeys.has(key)) {
                    /**
                     * If next hasn't changed and it isn't undefined, we want to check if it's
                     * been removed by a higher priority
                     */
                    markToAnimate(key);
                }
                else {
                    /**
                     * If it hasn't changed, we add it to the list of protected values
                     * to ensure it doesn't get animated.
                     */
                    typeState.protectedKeys[key] = true;
                }
            }
            /**
             * Update the typeState so next time animateChanges is called we can compare the
             * latest prop and resolvedValues to these.
             */
            typeState.prevProp = prop;
            typeState.prevResolvedValues = resolvedValues;
            /**
             *
             */
            if (typeState.isActive) {
                encounteredKeys = { ...encounteredKeys, ...resolvedValues };
            }
            if (isInitialRender && visualElement.blockInitialAnimation) {
                shouldAnimateType = false;
            }
            /**
             * If this is an inherited prop we want to skip this animation
             * unless the inherited variants haven't changed on this render.
             */
            const willAnimateViaParent = isInherited && variantDidChange;
            const needsAnimating = !willAnimateViaParent || handledRemovedValues;
            if (shouldAnimateType && needsAnimating) {
                animations.push(...definitionList.map((animation) => ({
                    animation: animation,
                    options: { type },
                })));
            }
        }
        /**
         * If there are some removed value that haven't been dealt with,
         * we need to create a new animation that falls back either to the value
         * defined in the style prop, or the last read value.
         */
        if (removedKeys.size) {
            const fallbackAnimation = {};
            removedKeys.forEach((key) => {
                const fallbackTarget = visualElement.getBaseTarget(key);
                const motionValue = visualElement.getValue(key);
                if (motionValue)
                    motionValue.liveStyle = true;
                // @ts-expect-error - @mattgperry to figure if we should do something here
                fallbackAnimation[key] = fallbackTarget !== null && fallbackTarget !== void 0 ? fallbackTarget : null;
            });
            animations.push({ animation: fallbackAnimation });
        }
        let shouldAnimate = Boolean(animations.length);
        if (isInitialRender &&
            (props.initial === false || props.initial === props.animate) &&
            !visualElement.manuallyAnimateOnMount) {
            shouldAnimate = false;
        }
        isInitialRender = false;
        return shouldAnimate ? animate(animations) : Promise.resolve();
    }
    /**
     * Change whether a certain animation type is active.
     */
    function setActive(type, isActive) {
        var _a;
        // If the active state hasn't changed, we can safely do nothing here
        if (state[type].isActive === isActive)
            return Promise.resolve();
        // Propagate active change to children
        (_a = visualElement.variantChildren) === null || _a === void 0 ? void 0 : _a.forEach((child) => { var _a; return (_a = child.animationState) === null || _a === void 0 ? void 0 : _a.setActive(type, isActive); });
        state[type].isActive = isActive;
        const animations = animateChanges(type);
        for (const key in state) {
            state[key].protectedKeys = {};
        }
        return animations;
    }
    return {
        animateChanges,
        setActive,
        setAnimateFunction,
        getState: () => state,
        reset: () => {
            state = createState();
            isInitialRender = true;
        },
    };
}
function checkVariantsDidChange(prev, next) {
    if (typeof next === "string") {
        return next !== prev;
    }
    else if (Array.isArray(next)) {
        return !shallowCompare(next, prev);
    }
    return false;
}
function createTypeState(isActive = false) {
    return {
        isActive,
        protectedKeys: {},
        needsAnimating: {},
        prevResolvedValues: {},
    };
}
function createState() {
    return {
        animate: createTypeState(true),
        whileInView: createTypeState(),
        whileHover: createTypeState(),
        whileTap: createTypeState(),
        whileDrag: createTypeState(),
        whileFocus: createTypeState(),
        exit: createTypeState(),
    };
}

class Feature {
    constructor(node) {
        this.isMounted = false;
        this.node = node;
    }
    update() { }
}

class AnimationFeature extends Feature {
    /**
     * We dynamically generate the AnimationState manager as it contains a reference
     * to the underlying animation library. We only want to load that if we load this,
     * so people can optionally code split it out using the `m` component.
     */
    constructor(node) {
        super(node);
        node.animationState || (node.animationState = createAnimationState(node));
    }
    updateAnimationControlsSubscription() {
        const { animate } = this.node.getProps();
        if (isAnimationControls(animate)) {
            this.unmountControls = animate.subscribe(this.node);
        }
    }
    /**
     * Subscribe any provided AnimationControls to the component's VisualElement
     */
    mount() {
        this.updateAnimationControlsSubscription();
    }
    update() {
        const { animate } = this.node.getProps();
        const { animate: prevAnimate } = this.node.prevProps || {};
        if (animate !== prevAnimate) {
            this.updateAnimationControlsSubscription();
        }
    }
    unmount() {
        var _a;
        this.node.animationState.reset();
        (_a = this.unmountControls) === null || _a === void 0 ? void 0 : _a.call(this);
    }
}

let id$1 = 0;
class ExitAnimationFeature extends Feature {
    constructor() {
        super(...arguments);
        this.id = id$1++;
    }
    update() {
        if (!this.node.presenceContext)
            return;
        const { isPresent, onExitComplete } = this.node.presenceContext;
        const { isPresent: prevIsPresent } = this.node.prevPresenceContext || {};
        if (!this.node.animationState || isPresent === prevIsPresent) {
            return;
        }
        const exitAnimation = this.node.animationState.setActive("exit", !isPresent);
        if (onExitComplete && !isPresent) {
            exitAnimation.then(() => onExitComplete(this.id));
        }
    }
    mount() {
        const { register } = this.node.presenceContext || {};
        if (register) {
            this.unmount = register(this.id);
        }
    }
    unmount() { }
}

const animations = {
    animation: {
        Feature: AnimationFeature,
    },
    exit: {
        Feature: ExitAnimationFeature,
    },
};

function addDomEvent(target, eventName, handler, options = { passive: true }) {
    target.addEventListener(eventName, handler, options);
    return () => target.removeEventListener(eventName, handler);
}

function extractEventInfo(event) {
    return {
        point: {
            x: event.pageX,
            y: event.pageY,
        },
    };
}
const addPointerInfo = (handler) => {
    return (event) => motionDom.isPrimaryPointer(event) && handler(event, extractEventInfo(event));
};

function addPointerEvent(target, eventName, handler, options) {
    return addDomEvent(target, eventName, addPointerInfo(handler), options);
}

const distance = (a, b) => Math.abs(a - b);
function distance2D(a, b) {
    // Multi-dimensional
    const xDelta = distance(a.x, b.x);
    const yDelta = distance(a.y, b.y);
    return Math.sqrt(xDelta ** 2 + yDelta ** 2);
}

/**
 * @internal
 */
class PanSession {
    constructor(event, handlers, { transformPagePoint, contextWindow, dragSnapToOrigin = false, } = {}) {
        /**
         * @internal
         */
        this.startEvent = null;
        /**
         * @internal
         */
        this.lastMoveEvent = null;
        /**
         * @internal
         */
        this.lastMoveEventInfo = null;
        /**
         * @internal
         */
        this.handlers = {};
        /**
         * @internal
         */
        this.contextWindow = window;
        this.updatePoint = () => {
            if (!(this.lastMoveEvent && this.lastMoveEventInfo))
                return;
            const info = getPanInfo(this.lastMoveEventInfo, this.history);
            const isPanStarted = this.startEvent !== null;
            // Only start panning if the offset is larger than 3 pixels. If we make it
            // any larger than this we'll want to reset the pointer history
            // on the first update to avoid visual snapping to the cursoe.
            const isDistancePastThreshold = distance2D(info.offset, { x: 0, y: 0 }) >= 3;
            if (!isPanStarted && !isDistancePastThreshold)
                return;
            const { point } = info;
            const { timestamp } = frameData;
            this.history.push({ ...point, timestamp });
            const { onStart, onMove } = this.handlers;
            if (!isPanStarted) {
                onStart && onStart(this.lastMoveEvent, info);
                this.startEvent = this.lastMoveEvent;
            }
            onMove && onMove(this.lastMoveEvent, info);
        };
        this.handlePointerMove = (event, info) => {
            this.lastMoveEvent = event;
            this.lastMoveEventInfo = transformPoint(info, this.transformPagePoint);
            // Throttle mouse move event to once per frame
            frame.update(this.updatePoint, true);
        };
        this.handlePointerUp = (event, info) => {
            this.end();
            const { onEnd, onSessionEnd, resumeAnimation } = this.handlers;
            if (this.dragSnapToOrigin)
                resumeAnimation && resumeAnimation();
            if (!(this.lastMoveEvent && this.lastMoveEventInfo))
                return;
            const panInfo = getPanInfo(event.type === "pointercancel"
                ? this.lastMoveEventInfo
                : transformPoint(info, this.transformPagePoint), this.history);
            if (this.startEvent && onEnd) {
                onEnd(event, panInfo);
            }
            onSessionEnd && onSessionEnd(event, panInfo);
        };
        // If we have more than one touch, don't start detecting this gesture
        if (!motionDom.isPrimaryPointer(event))
            return;
        this.dragSnapToOrigin = dragSnapToOrigin;
        this.handlers = handlers;
        this.transformPagePoint = transformPagePoint;
        this.contextWindow = contextWindow || window;
        const info = extractEventInfo(event);
        const initialInfo = transformPoint(info, this.transformPagePoint);
        const { point } = initialInfo;
        const { timestamp } = frameData;
        this.history = [{ ...point, timestamp }];
        const { onSessionStart } = handlers;
        onSessionStart &&
            onSessionStart(event, getPanInfo(initialInfo, this.history));
        this.removeListeners = pipe(addPointerEvent(this.contextWindow, "pointermove", this.handlePointerMove), addPointerEvent(this.contextWindow, "pointerup", this.handlePointerUp), addPointerEvent(this.contextWindow, "pointercancel", this.handlePointerUp));
    }
    updateHandlers(handlers) {
        this.handlers = handlers;
    }
    end() {
        this.removeListeners && this.removeListeners();
        cancelFrame(this.updatePoint);
    }
}
function transformPoint(info, transformPagePoint) {
    return transformPagePoint ? { point: transformPagePoint(info.point) } : info;
}
function subtractPoint(a, b) {
    return { x: a.x - b.x, y: a.y - b.y };
}
function getPanInfo({ point }, history) {
    return {
        point,
        delta: subtractPoint(point, lastDevicePoint(history)),
        offset: subtractPoint(point, startDevicePoint(history)),
        velocity: getVelocity(history, 0.1),
    };
}
function startDevicePoint(history) {
    return history[0];
}
function lastDevicePoint(history) {
    return history[history.length - 1];
}
function getVelocity(history, timeDelta) {
    if (history.length < 2) {
        return { x: 0, y: 0 };
    }
    let i = history.length - 1;
    let timestampedPoint = null;
    const lastPoint = lastDevicePoint(history);
    while (i >= 0) {
        timestampedPoint = history[i];
        if (lastPoint.timestamp - timestampedPoint.timestamp >
            motionUtils.secondsToMilliseconds(timeDelta)) {
            break;
        }
        i--;
    }
    if (!timestampedPoint) {
        return { x: 0, y: 0 };
    }
    const time = motionUtils.millisecondsToSeconds(lastPoint.timestamp - timestampedPoint.timestamp);
    if (time === 0) {
        return { x: 0, y: 0 };
    }
    const currentVelocity = {
        x: (lastPoint.x - timestampedPoint.x) / time,
        y: (lastPoint.y - timestampedPoint.y) / time,
    };
    if (currentVelocity.x === Infinity) {
        currentVelocity.x = 0;
    }
    if (currentVelocity.y === Infinity) {
        currentVelocity.y = 0;
    }
    return currentVelocity;
}

function isRefObject(ref) {
    return (ref &&
        typeof ref === "object" &&
        Object.prototype.hasOwnProperty.call(ref, "current"));
}

const SCALE_PRECISION = 0.0001;
const SCALE_MIN = 1 - SCALE_PRECISION;
const SCALE_MAX = 1 + SCALE_PRECISION;
const TRANSLATE_PRECISION = 0.01;
const TRANSLATE_MIN = 0 - TRANSLATE_PRECISION;
const TRANSLATE_MAX = 0 + TRANSLATE_PRECISION;
function calcLength(axis) {
    return axis.max - axis.min;
}
function isNear(value, target, maxDistance) {
    return Math.abs(value - target) <= maxDistance;
}
function calcAxisDelta(delta, source, target, origin = 0.5) {
    delta.origin = origin;
    delta.originPoint = mixNumber$1(source.min, source.max, delta.origin);
    delta.scale = calcLength(target) / calcLength(source);
    delta.translate =
        mixNumber$1(target.min, target.max, delta.origin) - delta.originPoint;
    if ((delta.scale >= SCALE_MIN && delta.scale <= SCALE_MAX) ||
        isNaN(delta.scale)) {
        delta.scale = 1.0;
    }
    if ((delta.translate >= TRANSLATE_MIN &&
        delta.translate <= TRANSLATE_MAX) ||
        isNaN(delta.translate)) {
        delta.translate = 0.0;
    }
}
function calcBoxDelta(delta, source, target, origin) {
    calcAxisDelta(delta.x, source.x, target.x, origin ? origin.originX : undefined);
    calcAxisDelta(delta.y, source.y, target.y, origin ? origin.originY : undefined);
}
function calcRelativeAxis(target, relative, parent) {
    target.min = parent.min + relative.min;
    target.max = target.min + calcLength(relative);
}
function calcRelativeBox(target, relative, parent) {
    calcRelativeAxis(target.x, relative.x, parent.x);
    calcRelativeAxis(target.y, relative.y, parent.y);
}
function calcRelativeAxisPosition(target, layout, parent) {
    target.min = layout.min - parent.min;
    target.max = target.min + calcLength(layout);
}
function calcRelativePosition(target, layout, parent) {
    calcRelativeAxisPosition(target.x, layout.x, parent.x);
    calcRelativeAxisPosition(target.y, layout.y, parent.y);
}

/**
 * Apply constraints to a point. These constraints are both physical along an
 * axis, and an elastic factor that determines how much to constrain the point
 * by if it does lie outside the defined parameters.
 */
function applyConstraints(point, { min, max }, elastic) {
    if (min !== undefined && point < min) {
        // If we have a min point defined, and this is outside of that, constrain
        point = elastic
            ? mixNumber$1(min, point, elastic.min)
            : Math.max(point, min);
    }
    else if (max !== undefined && point > max) {
        // If we have a max point defined, and this is outside of that, constrain
        point = elastic
            ? mixNumber$1(max, point, elastic.max)
            : Math.min(point, max);
    }
    return point;
}
/**
 * Calculate constraints in terms of the viewport when defined relatively to the
 * measured axis. This is measured from the nearest edge, so a max constraint of 200
 * on an axis with a max value of 300 would return a constraint of 500 - axis length
 */
function calcRelativeAxisConstraints(axis, min, max) {
    return {
        min: min !== undefined ? axis.min + min : undefined,
        max: max !== undefined
            ? axis.max + max - (axis.max - axis.min)
            : undefined,
    };
}
/**
 * Calculate constraints in terms of the viewport when
 * defined relatively to the measured bounding box.
 */
function calcRelativeConstraints(layoutBox, { top, left, bottom, right }) {
    return {
        x: calcRelativeAxisConstraints(layoutBox.x, left, right),
        y: calcRelativeAxisConstraints(layoutBox.y, top, bottom),
    };
}
/**
 * Calculate viewport constraints when defined as another viewport-relative axis
 */
function calcViewportAxisConstraints(layoutAxis, constraintsAxis) {
    let min = constraintsAxis.min - layoutAxis.min;
    let max = constraintsAxis.max - layoutAxis.max;
    // If the constraints axis is actually smaller than the layout axis then we can
    // flip the constraints
    if (constraintsAxis.max - constraintsAxis.min <
        layoutAxis.max - layoutAxis.min) {
        [min, max] = [max, min];
    }
    return { min, max };
}
/**
 * Calculate viewport constraints when defined as another viewport-relative box
 */
function calcViewportConstraints(layoutBox, constraintsBox) {
    return {
        x: calcViewportAxisConstraints(layoutBox.x, constraintsBox.x),
        y: calcViewportAxisConstraints(layoutBox.y, constraintsBox.y),
    };
}
/**
 * Calculate a transform origin relative to the source axis, between 0-1, that results
 * in an asthetically pleasing scale/transform needed to project from source to target.
 */
function calcOrigin$1(source, target) {
    let origin = 0.5;
    const sourceLength = calcLength(source);
    const targetLength = calcLength(target);
    if (targetLength > sourceLength) {
        origin = motionUtils.progress(target.min, target.max - sourceLength, source.min);
    }
    else if (sourceLength > targetLength) {
        origin = motionUtils.progress(source.min, source.max - targetLength, target.min);
    }
    return clamp(0, 1, origin);
}
/**
 * Rebase the calculated viewport constraints relative to the layout.min point.
 */
function rebaseAxisConstraints(layout, constraints) {
    const relativeConstraints = {};
    if (constraints.min !== undefined) {
        relativeConstraints.min = constraints.min - layout.min;
    }
    if (constraints.max !== undefined) {
        relativeConstraints.max = constraints.max - layout.min;
    }
    return relativeConstraints;
}
const defaultElastic = 0.35;
/**
 * Accepts a dragElastic prop and returns resolved elastic values for each axis.
 */
function resolveDragElastic(dragElastic = defaultElastic) {
    if (dragElastic === false) {
        dragElastic = 0;
    }
    else if (dragElastic === true) {
        dragElastic = defaultElastic;
    }
    return {
        x: resolveAxisElastic(dragElastic, "left", "right"),
        y: resolveAxisElastic(dragElastic, "top", "bottom"),
    };
}
function resolveAxisElastic(dragElastic, minLabel, maxLabel) {
    return {
        min: resolvePointElastic(dragElastic, minLabel),
        max: resolvePointElastic(dragElastic, maxLabel),
    };
}
function resolvePointElastic(dragElastic, label) {
    return typeof dragElastic === "number"
        ? dragElastic
        : dragElastic[label] || 0;
}

const createAxisDelta = () => ({
    translate: 0,
    scale: 1,
    origin: 0,
    originPoint: 0,
});
const createDelta = () => ({
    x: createAxisDelta(),
    y: createAxisDelta(),
});
const createAxis = () => ({ min: 0, max: 0 });
const createBox = () => ({
    x: createAxis(),
    y: createAxis(),
});

function eachAxis(callback) {
    return [callback("x"), callback("y")];
}

/**
 * Bounding boxes tend to be defined as top, left, right, bottom. For various operations
 * it's easier to consider each axis individually. This function returns a bounding box
 * as a map of single-axis min/max values.
 */
function convertBoundingBoxToBox({ top, left, right, bottom, }) {
    return {
        x: { min: left, max: right },
        y: { min: top, max: bottom },
    };
}
function convertBoxToBoundingBox({ x, y }) {
    return { top: y.min, right: x.max, bottom: y.max, left: x.min };
}
/**
 * Applies a TransformPoint function to a bounding box. TransformPoint is usually a function
 * provided by Framer to allow measured points to be corrected for device scaling. This is used
 * when measuring DOM elements and DOM event points.
 */
function transformBoxPoints(point, transformPoint) {
    if (!transformPoint)
        return point;
    const topLeft = transformPoint({ x: point.left, y: point.top });
    const bottomRight = transformPoint({ x: point.right, y: point.bottom });
    return {
        top: topLeft.y,
        left: topLeft.x,
        bottom: bottomRight.y,
        right: bottomRight.x,
    };
}

function isIdentityScale(scale) {
    return scale === undefined || scale === 1;
}
function hasScale({ scale, scaleX, scaleY }) {
    return (!isIdentityScale(scale) ||
        !isIdentityScale(scaleX) ||
        !isIdentityScale(scaleY));
}
function hasTransform(values) {
    return (hasScale(values) ||
        has2DTranslate(values) ||
        values.z ||
        values.rotate ||
        values.rotateX ||
        values.rotateY ||
        values.skewX ||
        values.skewY);
}
function has2DTranslate(values) {
    return is2DTranslate(values.x) || is2DTranslate(values.y);
}
function is2DTranslate(value) {
    return value && value !== "0%";
}

/**
 * Scales a point based on a factor and an originPoint
 */
function scalePoint(point, scale, originPoint) {
    const distanceFromOrigin = point - originPoint;
    const scaled = scale * distanceFromOrigin;
    return originPoint + scaled;
}
/**
 * Applies a translate/scale delta to a point
 */
function applyPointDelta(point, translate, scale, originPoint, boxScale) {
    if (boxScale !== undefined) {
        point = scalePoint(point, boxScale, originPoint);
    }
    return scalePoint(point, scale, originPoint) + translate;
}
/**
 * Applies a translate/scale delta to an axis
 */
function applyAxisDelta(axis, translate = 0, scale = 1, originPoint, boxScale) {
    axis.min = applyPointDelta(axis.min, translate, scale, originPoint, boxScale);
    axis.max = applyPointDelta(axis.max, translate, scale, originPoint, boxScale);
}
/**
 * Applies a translate/scale delta to a box
 */
function applyBoxDelta(box, { x, y }) {
    applyAxisDelta(box.x, x.translate, x.scale, x.originPoint);
    applyAxisDelta(box.y, y.translate, y.scale, y.originPoint);
}
const TREE_SCALE_SNAP_MIN = 0.999999999999;
const TREE_SCALE_SNAP_MAX = 1.0000000000001;
/**
 * Apply a tree of deltas to a box. We do this to calculate the effect of all the transforms
 * in a tree upon our box before then calculating how to project it into our desired viewport-relative box
 *
 * This is the final nested loop within updateLayoutDelta for future refactoring
 */
function applyTreeDeltas(box, treeScale, treePath, isSharedTransition = false) {
    const treeLength = treePath.length;
    if (!treeLength)
        return;
    // Reset the treeScale
    treeScale.x = treeScale.y = 1;
    let node;
    let delta;
    for (let i = 0; i < treeLength; i++) {
        node = treePath[i];
        delta = node.projectionDelta;
        /**
         * TODO: Prefer to remove this, but currently we have motion components with
         * display: contents in Framer.
         */
        const { visualElement } = node.options;
        if (visualElement &&
            visualElement.props.style &&
            visualElement.props.style.display === "contents") {
            continue;
        }
        if (isSharedTransition &&
            node.options.layoutScroll &&
            node.scroll &&
            node !== node.root) {
            transformBox(box, {
                x: -node.scroll.offset.x,
                y: -node.scroll.offset.y,
            });
        }
        if (delta) {
            // Incoporate each ancestor's scale into a culmulative treeScale for this component
            treeScale.x *= delta.x.scale;
            treeScale.y *= delta.y.scale;
            // Apply each ancestor's calculated delta into this component's recorded layout box
            applyBoxDelta(box, delta);
        }
        if (isSharedTransition && hasTransform(node.latestValues)) {
            transformBox(box, node.latestValues);
        }
    }
    /**
     * Snap tree scale back to 1 if it's within a non-perceivable threshold.
     * This will help reduce useless scales getting rendered.
     */
    if (treeScale.x < TREE_SCALE_SNAP_MAX &&
        treeScale.x > TREE_SCALE_SNAP_MIN) {
        treeScale.x = 1.0;
    }
    if (treeScale.y < TREE_SCALE_SNAP_MAX &&
        treeScale.y > TREE_SCALE_SNAP_MIN) {
        treeScale.y = 1.0;
    }
}
function translateAxis(axis, distance) {
    axis.min = axis.min + distance;
    axis.max = axis.max + distance;
}
/**
 * Apply a transform to an axis from the latest resolved motion values.
 * This function basically acts as a bridge between a flat motion value map
 * and applyAxisDelta
 */
function transformAxis(axis, axisTranslate, axisScale, boxScale, axisOrigin = 0.5) {
    const originPoint = mixNumber$1(axis.min, axis.max, axisOrigin);
    // Apply the axis delta to the final axis
    applyAxisDelta(axis, axisTranslate, axisScale, originPoint, boxScale);
}
/**
 * Apply a transform to a box from the latest resolved motion values.
 */
function transformBox(box, transform) {
    transformAxis(box.x, transform.x, transform.scaleX, transform.scale, transform.originX);
    transformAxis(box.y, transform.y, transform.scaleY, transform.scale, transform.originY);
}

function measureViewportBox(instance, transformPoint) {
    return convertBoundingBoxToBox(transformBoxPoints(instance.getBoundingClientRect(), transformPoint));
}
function measurePageBox(element, rootProjectionNode, transformPagePoint) {
    const viewportBox = measureViewportBox(element, transformPagePoint);
    const { scroll } = rootProjectionNode;
    if (scroll) {
        translateAxis(viewportBox.x, scroll.offset.x);
        translateAxis(viewportBox.y, scroll.offset.y);
    }
    return viewportBox;
}

// Fixes https://github.com/motiondivision/motion/issues/2270
const getContextWindow = ({ current }) => {
    return current ? current.ownerDocument.defaultView : null;
};

const elementDragControls = new WeakMap();
/**
 *
 */
// let latestPointerEvent: PointerEvent
class VisualElementDragControls {
    constructor(visualElement) {
        this.openDragLock = null;
        this.isDragging = false;
        this.currentDirection = null;
        this.originPoint = { x: 0, y: 0 };
        /**
         * The permitted boundaries of travel, in pixels.
         */
        this.constraints = false;
        this.hasMutatedConstraints = false;
        /**
         * The per-axis resolved elastic values.
         */
        this.elastic = createBox();
        this.visualElement = visualElement;
    }
    start(originEvent, { snapToCursor = false } = {}) {
        /**
         * Don't start dragging if this component is exiting
         */
        const { presenceContext } = this.visualElement;
        if (presenceContext && presenceContext.isPresent === false)
            return;
        const onSessionStart = (event) => {
            const { dragSnapToOrigin } = this.getProps();
            // Stop or pause any animations on both axis values immediately. This allows the user to throw and catch
            // the component.
            dragSnapToOrigin ? this.pauseAnimation() : this.stopAnimation();
            if (snapToCursor) {
                this.snapToCursor(extractEventInfo(event).point);
            }
        };
        const onStart = (event, info) => {
            // Attempt to grab the global drag gesture lock - maybe make this part of PanSession
            const { drag, dragPropagation, onDragStart } = this.getProps();
            if (drag && !dragPropagation) {
                if (this.openDragLock)
                    this.openDragLock();
                this.openDragLock = motionDom.setDragLock(drag);
                // If we don 't have the lock, don't start dragging
                if (!this.openDragLock)
                    return;
            }
            this.isDragging = true;
            this.currentDirection = null;
            this.resolveConstraints();
            if (this.visualElement.projection) {
                this.visualElement.projection.isAnimationBlocked = true;
                this.visualElement.projection.target = undefined;
            }
            /**
             * Record gesture origin
             */
            eachAxis((axis) => {
                let current = this.getAxisMotionValue(axis).get() || 0;
                /**
                 * If the MotionValue is a percentage value convert to px
                 */
                if (percent.test(current)) {
                    const { projection } = this.visualElement;
                    if (projection && projection.layout) {
                        const measuredAxis = projection.layout.layoutBox[axis];
                        if (measuredAxis) {
                            const length = calcLength(measuredAxis);
                            current = length * (parseFloat(current) / 100);
                        }
                    }
                }
                this.originPoint[axis] = current;
            });
            // Fire onDragStart event
            if (onDragStart) {
                frame.postRender(() => onDragStart(event, info));
            }
            addValueToWillChange(this.visualElement, "transform");
            const { animationState } = this.visualElement;
            animationState && animationState.setActive("whileDrag", true);
        };
        const onMove = (event, info) => {
            // latestPointerEvent = event
            const { dragPropagation, dragDirectionLock, onDirectionLock, onDrag, } = this.getProps();
            // If we didn't successfully receive the gesture lock, early return.
            if (!dragPropagation && !this.openDragLock)
                return;
            const { offset } = info;
            // Attempt to detect drag direction if directionLock is true
            if (dragDirectionLock && this.currentDirection === null) {
                this.currentDirection = getCurrentDirection(offset);
                // If we've successfully set a direction, notify listener
                if (this.currentDirection !== null) {
                    onDirectionLock && onDirectionLock(this.currentDirection);
                }
                return;
            }
            // Update each point with the latest position
            this.updateAxis("x", info.point, offset);
            this.updateAxis("y", info.point, offset);
            /**
             * Ideally we would leave the renderer to fire naturally at the end of
             * this frame but if the element is about to change layout as the result
             * of a re-render we want to ensure the browser can read the latest
             * bounding box to ensure the pointer and element don't fall out of sync.
             */
            this.visualElement.render();
            /**
             * This must fire after the render call as it might trigger a state
             * change which itself might trigger a layout update.
             */
            onDrag && onDrag(event, info);
        };
        const onSessionEnd = (event, info) => this.stop(event, info);
        const resumeAnimation = () => eachAxis((axis) => {
            var _a;
            return this.getAnimationState(axis) === "paused" &&
                ((_a = this.getAxisMotionValue(axis).animation) === null || _a === void 0 ? void 0 : _a.play());
        });
        const { dragSnapToOrigin } = this.getProps();
        this.panSession = new PanSession(originEvent, {
            onSessionStart,
            onStart,
            onMove,
            onSessionEnd,
            resumeAnimation,
        }, {
            transformPagePoint: this.visualElement.getTransformPagePoint(),
            dragSnapToOrigin,
            contextWindow: getContextWindow(this.visualElement),
        });
    }
    stop(event, info) {
        const isDragging = this.isDragging;
        this.cancel();
        if (!isDragging)
            return;
        const { velocity } = info;
        this.startAnimation(velocity);
        const { onDragEnd } = this.getProps();
        if (onDragEnd) {
            frame.postRender(() => onDragEnd(event, info));
        }
    }
    cancel() {
        this.isDragging = false;
        const { projection, animationState } = this.visualElement;
        if (projection) {
            projection.isAnimationBlocked = false;
        }
        this.panSession && this.panSession.end();
        this.panSession = undefined;
        const { dragPropagation } = this.getProps();
        if (!dragPropagation && this.openDragLock) {
            this.openDragLock();
            this.openDragLock = null;
        }
        animationState && animationState.setActive("whileDrag", false);
    }
    updateAxis(axis, _point, offset) {
        const { drag } = this.getProps();
        // If we're not dragging this axis, do an early return.
        if (!offset || !shouldDrag(axis, drag, this.currentDirection))
            return;
        const axisValue = this.getAxisMotionValue(axis);
        let next = this.originPoint[axis] + offset[axis];
        // Apply constraints
        if (this.constraints && this.constraints[axis]) {
            next = applyConstraints(next, this.constraints[axis], this.elastic[axis]);
        }
        axisValue.set(next);
    }
    resolveConstraints() {
        var _a;
        const { dragConstraints, dragElastic } = this.getProps();
        const layout = this.visualElement.projection &&
            !this.visualElement.projection.layout
            ? this.visualElement.projection.measure(false)
            : (_a = this.visualElement.projection) === null || _a === void 0 ? void 0 : _a.layout;
        const prevConstraints = this.constraints;
        if (dragConstraints && isRefObject(dragConstraints)) {
            if (!this.constraints) {
                this.constraints = this.resolveRefConstraints();
            }
        }
        else {
            if (dragConstraints && layout) {
                this.constraints = calcRelativeConstraints(layout.layoutBox, dragConstraints);
            }
            else {
                this.constraints = false;
            }
        }
        this.elastic = resolveDragElastic(dragElastic);
        /**
         * If we're outputting to external MotionValues, we want to rebase the measured constraints
         * from viewport-relative to component-relative.
         */
        if (prevConstraints !== this.constraints &&
            layout &&
            this.constraints &&
            !this.hasMutatedConstraints) {
            eachAxis((axis) => {
                if (this.constraints !== false &&
                    this.getAxisMotionValue(axis)) {
                    this.constraints[axis] = rebaseAxisConstraints(layout.layoutBox[axis], this.constraints[axis]);
                }
            });
        }
    }
    resolveRefConstraints() {
        const { dragConstraints: constraints, onMeasureDragConstraints } = this.getProps();
        if (!constraints || !isRefObject(constraints))
            return false;
        const constraintsElement = constraints.current;
        motionUtils.invariant(constraintsElement !== null, "If `dragConstraints` is set as a React ref, that ref must be passed to another component's `ref` prop.");
        const { projection } = this.visualElement;
        // TODO
        if (!projection || !projection.layout)
            return false;
        const constraintsBox = measurePageBox(constraintsElement, projection.root, this.visualElement.getTransformPagePoint());
        let measuredConstraints = calcViewportConstraints(projection.layout.layoutBox, constraintsBox);
        /**
         * If there's an onMeasureDragConstraints listener we call it and
         * if different constraints are returned, set constraints to that
         */
        if (onMeasureDragConstraints) {
            const userConstraints = onMeasureDragConstraints(convertBoxToBoundingBox(measuredConstraints));
            this.hasMutatedConstraints = !!userConstraints;
            if (userConstraints) {
                measuredConstraints = convertBoundingBoxToBox(userConstraints);
            }
        }
        return measuredConstraints;
    }
    startAnimation(velocity) {
        const { drag, dragMomentum, dragElastic, dragTransition, dragSnapToOrigin, onDragTransitionEnd, } = this.getProps();
        const constraints = this.constraints || {};
        const momentumAnimations = eachAxis((axis) => {
            if (!shouldDrag(axis, drag, this.currentDirection)) {
                return;
            }
            let transition = (constraints && constraints[axis]) || {};
            if (dragSnapToOrigin)
                transition = { min: 0, max: 0 };
            /**
             * Overdamp the boundary spring if `dragElastic` is disabled. There's still a frame
             * of spring animations so we should look into adding a disable spring option to `inertia`.
             * We could do something here where we affect the `bounceStiffness` and `bounceDamping`
             * using the value of `dragElastic`.
             */
            const bounceStiffness = dragElastic ? 200 : 1000000;
            const bounceDamping = dragElastic ? 40 : 10000000;
            const inertia = {
                type: "inertia",
                velocity: dragMomentum ? velocity[axis] : 0,
                bounceStiffness,
                bounceDamping,
                timeConstant: 750,
                restDelta: 1,
                restSpeed: 10,
                ...dragTransition,
                ...transition,
            };
            // If we're not animating on an externally-provided `MotionValue` we can use the
            // component's animation controls which will handle interactions with whileHover (etc),
            // otherwise we just have to animate the `MotionValue` itself.
            return this.startAxisValueAnimation(axis, inertia);
        });
        // Run all animations and then resolve the new drag constraints.
        return Promise.all(momentumAnimations).then(onDragTransitionEnd);
    }
    startAxisValueAnimation(axis, transition) {
        const axisValue = this.getAxisMotionValue(axis);
        addValueToWillChange(this.visualElement, axis);
        return axisValue.start(animateMotionValue(axis, axisValue, 0, transition, this.visualElement, false));
    }
    stopAnimation() {
        eachAxis((axis) => this.getAxisMotionValue(axis).stop());
    }
    pauseAnimation() {
        eachAxis((axis) => { var _a; return (_a = this.getAxisMotionValue(axis).animation) === null || _a === void 0 ? void 0 : _a.pause(); });
    }
    getAnimationState(axis) {
        var _a;
        return (_a = this.getAxisMotionValue(axis).animation) === null || _a === void 0 ? void 0 : _a.state;
    }
    /**
     * Drag works differently depending on which props are provided.
     *
     * - If _dragX and _dragY are provided, we output the gesture delta directly to those motion values.
     * - Otherwise, we apply the delta to the x/y motion values.
     */
    getAxisMotionValue(axis) {
        const dragKey = `_drag${axis.toUpperCase()}`;
        const props = this.visualElement.getProps();
        const externalMotionValue = props[dragKey];
        return externalMotionValue
            ? externalMotionValue
            : this.visualElement.getValue(axis, (props.initial
                ? props.initial[axis]
                : undefined) || 0);
    }
    snapToCursor(point) {
        eachAxis((axis) => {
            const { drag } = this.getProps();
            // If we're not dragging this axis, do an early return.
            if (!shouldDrag(axis, drag, this.currentDirection))
                return;
            const { projection } = this.visualElement;
            const axisValue = this.getAxisMotionValue(axis);
            if (projection && projection.layout) {
                const { min, max } = projection.layout.layoutBox[axis];
                axisValue.set(point[axis] - mixNumber$1(min, max, 0.5));
            }
        });
    }
    /**
     * When the viewport resizes we want to check if the measured constraints
     * have changed and, if so, reposition the element within those new constraints
     * relative to where it was before the resize.
     */
    scalePositionWithinConstraints() {
        if (!this.visualElement.current)
            return;
        const { drag, dragConstraints } = this.getProps();
        const { projection } = this.visualElement;
        if (!isRefObject(dragConstraints) || !projection || !this.constraints)
            return;
        /**
         * Stop current animations as there can be visual glitching if we try to do
         * this mid-animation
         */
        this.stopAnimation();
        /**
         * Record the relative position of the dragged element relative to the
         * constraints box and save as a progress value.
         */
        const boxProgress = { x: 0, y: 0 };
        eachAxis((axis) => {
            const axisValue = this.getAxisMotionValue(axis);
            if (axisValue && this.constraints !== false) {
                const latest = axisValue.get();
                boxProgress[axis] = calcOrigin$1({ min: latest, max: latest }, this.constraints[axis]);
            }
        });
        /**
         * Update the layout of this element and resolve the latest drag constraints
         */
        const { transformTemplate } = this.visualElement.getProps();
        this.visualElement.current.style.transform = transformTemplate
            ? transformTemplate({}, "")
            : "none";
        projection.root && projection.root.updateScroll();
        projection.updateLayout();
        this.resolveConstraints();
        /**
         * For each axis, calculate the current progress of the layout axis
         * within the new constraints.
         */
        eachAxis((axis) => {
            if (!shouldDrag(axis, drag, null))
                return;
            /**
             * Calculate a new transform based on the previous box progress
             */
            const axisValue = this.getAxisMotionValue(axis);
            const { min, max } = this.constraints[axis];
            axisValue.set(mixNumber$1(min, max, boxProgress[axis]));
        });
    }
    addListeners() {
        if (!this.visualElement.current)
            return;
        elementDragControls.set(this.visualElement, this);
        const element = this.visualElement.current;
        /**
         * Attach a pointerdown event listener on this DOM element to initiate drag tracking.
         */
        const stopPointerListener = addPointerEvent(element, "pointerdown", (event) => {
            const { drag, dragListener = true } = this.getProps();
            drag && dragListener && this.start(event);
        });
        const measureDragConstraints = () => {
            const { dragConstraints } = this.getProps();
            if (isRefObject(dragConstraints) && dragConstraints.current) {
                this.constraints = this.resolveRefConstraints();
            }
        };
        const { projection } = this.visualElement;
        const stopMeasureLayoutListener = projection.addEventListener("measure", measureDragConstraints);
        if (projection && !projection.layout) {
            projection.root && projection.root.updateScroll();
            projection.updateLayout();
        }
        frame.read(measureDragConstraints);
        /**
         * Attach a window resize listener to scale the draggable target within its defined
         * constraints as the window resizes.
         */
        const stopResizeListener = addDomEvent(window, "resize", () => this.scalePositionWithinConstraints());
        /**
         * If the element's layout changes, calculate the delta and apply that to
         * the drag gesture's origin point.
         */
        const stopLayoutUpdateListener = projection.addEventListener("didUpdate", (({ delta, hasLayoutChanged }) => {
            if (this.isDragging && hasLayoutChanged) {
                eachAxis((axis) => {
                    const motionValue = this.getAxisMotionValue(axis);
                    if (!motionValue)
                        return;
                    this.originPoint[axis] += delta[axis].translate;
                    motionValue.set(motionValue.get() + delta[axis].translate);
                });
                this.visualElement.render();
            }
        }));
        return () => {
            stopResizeListener();
            stopPointerListener();
            stopMeasureLayoutListener();
            stopLayoutUpdateListener && stopLayoutUpdateListener();
        };
    }
    getProps() {
        const props = this.visualElement.getProps();
        const { drag = false, dragDirectionLock = false, dragPropagation = false, dragConstraints = false, dragElastic = defaultElastic, dragMomentum = true, } = props;
        return {
            ...props,
            drag,
            dragDirectionLock,
            dragPropagation,
            dragConstraints,
            dragElastic,
            dragMomentum,
        };
    }
}
function shouldDrag(direction, drag, currentDirection) {
    return ((drag === true || drag === direction) &&
        (currentDirection === null || currentDirection === direction));
}
/**
 * Based on an x/y offset determine the current drag direction. If both axis' offsets are lower
 * than the provided threshold, return `null`.
 *
 * @param offset - The x/y offset from origin.
 * @param lockThreshold - (Optional) - the minimum absolute offset before we can determine a drag direction.
 */
function getCurrentDirection(offset, lockThreshold = 10) {
    let direction = null;
    if (Math.abs(offset.y) > lockThreshold) {
        direction = "y";
    }
    else if (Math.abs(offset.x) > lockThreshold) {
        direction = "x";
    }
    return direction;
}

class DragGesture extends Feature {
    constructor(node) {
        super(node);
        this.removeGroupControls = motionUtils.noop;
        this.removeListeners = motionUtils.noop;
        this.controls = new VisualElementDragControls(node);
    }
    mount() {
        // If we've been provided a DragControls for manual control over the drag gesture,
        // subscribe this component to it on mount.
        const { dragControls } = this.node.getProps();
        if (dragControls) {
            this.removeGroupControls = dragControls.subscribe(this.controls);
        }
        this.removeListeners = this.controls.addListeners() || motionUtils.noop;
    }
    unmount() {
        this.removeGroupControls();
        this.removeListeners();
    }
}

const asyncHandler = (handler) => (event, info) => {
    if (handler) {
        frame.postRender(() => handler(event, info));
    }
};
class PanGesture extends Feature {
    constructor() {
        super(...arguments);
        this.removePointerDownListener = motionUtils.noop;
    }
    onPointerDown(pointerDownEvent) {
        this.session = new PanSession(pointerDownEvent, this.createPanHandlers(), {
            transformPagePoint: this.node.getTransformPagePoint(),
            contextWindow: getContextWindow(this.node),
        });
    }
    createPanHandlers() {
        const { onPanSessionStart, onPanStart, onPan, onPanEnd } = this.node.getProps();
        return {
            onSessionStart: asyncHandler(onPanSessionStart),
            onStart: asyncHandler(onPanStart),
            onMove: onPan,
            onEnd: (event, info) => {
                delete this.session;
                if (onPanEnd) {
                    frame.postRender(() => onPanEnd(event, info));
                }
            },
        };
    }
    mount() {
        this.removePointerDownListener = addPointerEvent(this.node.current, "pointerdown", (event) => this.onPointerDown(event));
    }
    update() {
        this.session && this.session.updateHandlers(this.createPanHandlers());
    }
    unmount() {
        this.removePointerDownListener();
        this.session && this.session.end();
    }
}

function animateSingleValue(value, keyframes, options) {
    const motionValue$1 = isMotionValue(value) ? value : motionValue(value);
    motionValue$1.start(animateMotionValue("", motionValue$1, keyframes, options));
    return motionValue$1.animation;
}

const visualElementStore = new WeakMap();

function isSVGElement(element) {
    return element instanceof SVGElement && element.tagName !== "svg";
}

const featureProps = {
    animation: [
        "animate",
        "variants",
        "whileHover",
        "whileTap",
        "exit",
        "whileInView",
        "whileFocus",
        "whileDrag",
    ],
    exit: ["exit"],
    drag: ["drag", "dragControls"],
    focus: ["whileFocus"],
    hover: ["whileHover", "onHoverStart", "onHoverEnd"],
    tap: ["whileTap", "onTap", "onTapStart", "onTapCancel"],
    pan: ["onPan", "onPanStart", "onPanSessionStart", "onPanEnd"],
    inView: ["whileInView", "onViewportEnter", "onViewportLeave"],
    layout: ["layout", "layoutId"],
};
const featureDefinitions = {};
for (const key in featureProps) {
    featureDefinitions[key] = {
        isEnabled: (props) => featureProps[key].some((name) => !!props[name]),
    };
}

const isBrowser = typeof window !== "undefined";

// Does this device prefer reduced motion? Returns `null` server-side.
const prefersReducedMotion = { current: null };
const hasReducedMotionListener = { current: false };

function initPrefersReducedMotion() {
    hasReducedMotionListener.current = true;
    if (!isBrowser)
        return;
    if (window.matchMedia) {
        const motionMediaQuery = window.matchMedia("(prefers-reduced-motion)");
        const setReducedMotionPreferences = () => (prefersReducedMotion.current = motionMediaQuery.matches);
        motionMediaQuery.addListener(setReducedMotionPreferences);
        setReducedMotionPreferences();
    }
    else {
        prefersReducedMotion.current = false;
    }
}

/**
 * A list of all ValueTypes
 */
const valueTypes = [...dimensionValueTypes, color, complex];
/**
 * Tests a value against the list of ValueTypes
 */
const findValueType = (v) => valueTypes.find(testValueType(v));

function isControllingVariants(props) {
    return (isAnimationControls(props.animate) ||
        variantProps.some((name) => isVariantLabel(props[name])));
}
function isVariantNode(props) {
    return Boolean(isControllingVariants(props) || props.variants);
}

function updateMotionValuesFromProps(element, next, prev) {
    for (const key in next) {
        const nextValue = next[key];
        const prevValue = prev[key];
        if (isMotionValue(nextValue)) {
            /**
             * If this is a motion value found in props or style, we want to add it
             * to our visual element's motion value map.
             */
            element.addValue(key, nextValue);
            /**
             * Check the version of the incoming motion value with this version
             * and warn against mismatches.
             */
            if (process.env.NODE_ENV === "development") {
                warnOnce(nextValue.version === "11.18.2", `Attempting to mix Motion versions ${nextValue.version} with 11.18.2 may not work as expected.`);
            }
        }
        else if (isMotionValue(prevValue)) {
            /**
             * If we're swapping from a motion value to a static value,
             * create a new motion value from that
             */
            element.addValue(key, motionValue(nextValue, { owner: element }));
        }
        else if (prevValue !== nextValue) {
            /**
             * If this is a flat value that has changed, update the motion value
             * or create one if it doesn't exist. We only want to do this if we're
             * not handling the value with our animation state.
             */
            if (element.hasValue(key)) {
                const existingValue = element.getValue(key);
                if (existingValue.liveStyle === true) {
                    existingValue.jump(nextValue);
                }
                else if (!existingValue.hasAnimated) {
                    existingValue.set(nextValue);
                }
            }
            else {
                const latestValue = element.getStaticValue(key);
                element.addValue(key, motionValue(latestValue !== undefined ? latestValue : nextValue, { owner: element }));
            }
        }
    }
    // Handle removed values
    for (const key in prev) {
        if (next[key] === undefined)
            element.removeValue(key);
    }
    return next;
}

const propEventHandlers = [
    "AnimationStart",
    "AnimationComplete",
    "Update",
    "BeforeLayoutMeasure",
    "LayoutMeasure",
    "LayoutAnimationStart",
    "LayoutAnimationComplete",
];
/**
 * A VisualElement is an imperative abstraction around UI elements such as
 * HTMLElement, SVGElement, Three.Object3D etc.
 */
class VisualElement {
    /**
     * This method takes React props and returns found MotionValues. For example, HTML
     * MotionValues will be found within the style prop, whereas for Three.js within attribute arrays.
     *
     * This isn't an abstract method as it needs calling in the constructor, but it is
     * intended to be one.
     */
    scrapeMotionValuesFromProps(_props, _prevProps, _visualElement) {
        return {};
    }
    constructor({ parent, props, presenceContext, reducedMotionConfig, blockInitialAnimation, visualState, }, options = {}) {
        /**
         * A reference to the current underlying Instance, e.g. a HTMLElement
         * or Three.Mesh etc.
         */
        this.current = null;
        /**
         * A set containing references to this VisualElement's children.
         */
        this.children = new Set();
        /**
         * Determine what role this visual element should take in the variant tree.
         */
        this.isVariantNode = false;
        this.isControllingVariants = false;
        /**
         * Decides whether this VisualElement should animate in reduced motion
         * mode.
         *
         * TODO: This is currently set on every individual VisualElement but feels
         * like it could be set globally.
         */
        this.shouldReduceMotion = null;
        /**
         * A map of all motion values attached to this visual element. Motion
         * values are source of truth for any given animated value. A motion
         * value might be provided externally by the component via props.
         */
        this.values = new Map();
        this.KeyframeResolver = KeyframeResolver;
        /**
         * Cleanup functions for active features (hover/tap/exit etc)
         */
        this.features = {};
        /**
         * A map of every subscription that binds the provided or generated
         * motion values onChange listeners to this visual element.
         */
        this.valueSubscriptions = new Map();
        /**
         * A reference to the previously-provided motion values as returned
         * from scrapeMotionValuesFromProps. We use the keys in here to determine
         * if any motion values need to be removed after props are updated.
         */
        this.prevMotionValues = {};
        /**
         * An object containing a SubscriptionManager for each active event.
         */
        this.events = {};
        /**
         * An object containing an unsubscribe function for each prop event subscription.
         * For example, every "Update" event can have multiple subscribers via
         * VisualElement.on(), but only one of those can be defined via the onUpdate prop.
         */
        this.propEventSubscriptions = {};
        this.notifyUpdate = () => this.notify("Update", this.latestValues);
        this.render = () => {
            if (!this.current)
                return;
            this.triggerBuild();
            this.renderInstance(this.current, this.renderState, this.props.style, this.projection);
        };
        this.renderScheduledAt = 0.0;
        this.scheduleRender = () => {
            const now = time.now();
            if (this.renderScheduledAt < now) {
                this.renderScheduledAt = now;
                frame.render(this.render, false, true);
            }
        };
        const { latestValues, renderState, onUpdate } = visualState;
        this.onUpdate = onUpdate;
        this.latestValues = latestValues;
        this.baseTarget = { ...latestValues };
        this.initialValues = props.initial ? { ...latestValues } : {};
        this.renderState = renderState;
        this.parent = parent;
        this.props = props;
        this.presenceContext = presenceContext;
        this.depth = parent ? parent.depth + 1 : 0;
        this.reducedMotionConfig = reducedMotionConfig;
        this.options = options;
        this.blockInitialAnimation = Boolean(blockInitialAnimation);
        this.isControllingVariants = isControllingVariants(props);
        this.isVariantNode = isVariantNode(props);
        if (this.isVariantNode) {
            this.variantChildren = new Set();
        }
        this.manuallyAnimateOnMount = Boolean(parent && parent.current);
        /**
         * Any motion values that are provided to the element when created
         * aren't yet bound to the element, as this would technically be impure.
         * However, we iterate through the motion values and set them to the
         * initial values for this component.
         *
         * TODO: This is impure and we should look at changing this to run on mount.
         * Doing so will break some tests but this isn't necessarily a breaking change,
         * more a reflection of the test.
         */
        const { willChange, ...initialMotionValues } = this.scrapeMotionValuesFromProps(props, {}, this);
        for (const key in initialMotionValues) {
            const value = initialMotionValues[key];
            if (latestValues[key] !== undefined && isMotionValue(value)) {
                value.set(latestValues[key], false);
            }
        }
    }
    mount(instance) {
        this.current = instance;
        visualElementStore.set(instance, this);
        if (this.projection && !this.projection.instance) {
            this.projection.mount(instance);
        }
        if (this.parent && this.isVariantNode && !this.isControllingVariants) {
            this.removeFromVariantTree = this.parent.addVariantChild(this);
        }
        this.values.forEach((value, key) => this.bindToMotionValue(key, value));
        if (!hasReducedMotionListener.current) {
            initPrefersReducedMotion();
        }
        this.shouldReduceMotion =
            this.reducedMotionConfig === "never"
                ? false
                : this.reducedMotionConfig === "always"
                    ? true
                    : prefersReducedMotion.current;
        if (process.env.NODE_ENV !== "production") {
            warnOnce(this.shouldReduceMotion !== true, "You have Reduced Motion enabled on your device. Animations may not appear as expected.");
        }
        if (this.parent)
            this.parent.children.add(this);
        this.update(this.props, this.presenceContext);
    }
    unmount() {
        visualElementStore.delete(this.current);
        this.projection && this.projection.unmount();
        cancelFrame(this.notifyUpdate);
        cancelFrame(this.render);
        this.valueSubscriptions.forEach((remove) => remove());
        this.valueSubscriptions.clear();
        this.removeFromVariantTree && this.removeFromVariantTree();
        this.parent && this.parent.children.delete(this);
        for (const key in this.events) {
            this.events[key].clear();
        }
        for (const key in this.features) {
            const feature = this.features[key];
            if (feature) {
                feature.unmount();
                feature.isMounted = false;
            }
        }
        this.current = null;
    }
    bindToMotionValue(key, value) {
        if (this.valueSubscriptions.has(key)) {
            this.valueSubscriptions.get(key)();
        }
        const valueIsTransform = transformProps.has(key);
        const removeOnChange = value.on("change", (latestValue) => {
            this.latestValues[key] = latestValue;
            this.props.onUpdate && frame.preRender(this.notifyUpdate);
            if (valueIsTransform && this.projection) {
                this.projection.isTransformDirty = true;
            }
        });
        const removeOnRenderRequest = value.on("renderRequest", this.scheduleRender);
        let removeSyncCheck;
        if (window.MotionCheckAppearSync) {
            removeSyncCheck = window.MotionCheckAppearSync(this, key, value);
        }
        this.valueSubscriptions.set(key, () => {
            removeOnChange();
            removeOnRenderRequest();
            if (removeSyncCheck)
                removeSyncCheck();
            if (value.owner)
                value.stop();
        });
    }
    sortNodePosition(other) {
        /**
         * If these nodes aren't even of the same type we can't compare their depth.
         */
        if (!this.current ||
            !this.sortInstanceNodePosition ||
            this.type !== other.type) {
            return 0;
        }
        return this.sortInstanceNodePosition(this.current, other.current);
    }
    updateFeatures() {
        let key = "animation";
        for (key in featureDefinitions) {
            const featureDefinition = featureDefinitions[key];
            if (!featureDefinition)
                continue;
            const { isEnabled, Feature: FeatureConstructor } = featureDefinition;
            /**
             * If this feature is enabled but not active, make a new instance.
             */
            if (!this.features[key] &&
                FeatureConstructor &&
                isEnabled(this.props)) {
                this.features[key] = new FeatureConstructor(this);
            }
            /**
             * If we have a feature, mount or update it.
             */
            if (this.features[key]) {
                const feature = this.features[key];
                if (feature.isMounted) {
                    feature.update();
                }
                else {
                    feature.mount();
                    feature.isMounted = true;
                }
            }
        }
    }
    triggerBuild() {
        this.build(this.renderState, this.latestValues, this.props);
    }
    /**
     * Measure the current viewport box with or without transforms.
     * Only measures axis-aligned boxes, rotate and skew must be manually
     * removed with a re-render to work.
     */
    measureViewportBox() {
        return this.current
            ? this.measureInstanceViewportBox(this.current, this.props)
            : createBox();
    }
    getStaticValue(key) {
        return this.latestValues[key];
    }
    setStaticValue(key, value) {
        this.latestValues[key] = value;
    }
    /**
     * Update the provided props. Ensure any newly-added motion values are
     * added to our map, old ones removed, and listeners updated.
     */
    update(props, presenceContext) {
        if (props.transformTemplate || this.props.transformTemplate) {
            this.scheduleRender();
        }
        this.prevProps = this.props;
        this.props = props;
        this.prevPresenceContext = this.presenceContext;
        this.presenceContext = presenceContext;
        /**
         * Update prop event handlers ie onAnimationStart, onAnimationComplete
         */
        for (let i = 0; i < propEventHandlers.length; i++) {
            const key = propEventHandlers[i];
            if (this.propEventSubscriptions[key]) {
                this.propEventSubscriptions[key]();
                delete this.propEventSubscriptions[key];
            }
            const listenerName = ("on" + key);
            const listener = props[listenerName];
            if (listener) {
                this.propEventSubscriptions[key] = this.on(key, listener);
            }
        }
        this.prevMotionValues = updateMotionValuesFromProps(this, this.scrapeMotionValuesFromProps(props, this.prevProps, this), this.prevMotionValues);
        if (this.handleChildMotionValue) {
            this.handleChildMotionValue();
        }
        this.onUpdate && this.onUpdate(this);
    }
    getProps() {
        return this.props;
    }
    /**
     * Returns the variant definition with a given name.
     */
    getVariant(name) {
        return this.props.variants ? this.props.variants[name] : undefined;
    }
    /**
     * Returns the defined default transition on this component.
     */
    getDefaultTransition() {
        return this.props.transition;
    }
    getTransformPagePoint() {
        return this.props.transformPagePoint;
    }
    getClosestVariantNode() {
        return this.isVariantNode
            ? this
            : this.parent
                ? this.parent.getClosestVariantNode()
                : undefined;
    }
    /**
     * Add a child visual element to our set of children.
     */
    addVariantChild(child) {
        const closestVariantNode = this.getClosestVariantNode();
        if (closestVariantNode) {
            closestVariantNode.variantChildren &&
                closestVariantNode.variantChildren.add(child);
            return () => closestVariantNode.variantChildren.delete(child);
        }
    }
    /**
     * Add a motion value and bind it to this visual element.
     */
    addValue(key, value) {
        // Remove existing value if it exists
        const existingValue = this.values.get(key);
        if (value !== existingValue) {
            if (existingValue)
                this.removeValue(key);
            this.bindToMotionValue(key, value);
            this.values.set(key, value);
            this.latestValues[key] = value.get();
        }
    }
    /**
     * Remove a motion value and unbind any active subscriptions.
     */
    removeValue(key) {
        this.values.delete(key);
        const unsubscribe = this.valueSubscriptions.get(key);
        if (unsubscribe) {
            unsubscribe();
            this.valueSubscriptions.delete(key);
        }
        delete this.latestValues[key];
        this.removeValueFromRenderState(key, this.renderState);
    }
    /**
     * Check whether we have a motion value for this key
     */
    hasValue(key) {
        return this.values.has(key);
    }
    getValue(key, defaultValue) {
        if (this.props.values && this.props.values[key]) {
            return this.props.values[key];
        }
        let value = this.values.get(key);
        if (value === undefined && defaultValue !== undefined) {
            value = motionValue(defaultValue === null ? undefined : defaultValue, { owner: this });
            this.addValue(key, value);
        }
        return value;
    }
    /**
     * If we're trying to animate to a previously unencountered value,
     * we need to check for it in our state and as a last resort read it
     * directly from the instance (which might have performance implications).
     */
    readValue(key, target) {
        var _a;
        let value = this.latestValues[key] !== undefined || !this.current
            ? this.latestValues[key]
            : (_a = this.getBaseTargetFromProps(this.props, key)) !== null && _a !== void 0 ? _a : this.readValueFromInstance(this.current, key, this.options);
        if (value !== undefined && value !== null) {
            if (typeof value === "string" &&
                (isNumericalString(value) || isZeroValueString(value))) {
                // If this is a number read as a string, ie "0" or "200", convert it to a number
                value = parseFloat(value);
            }
            else if (!findValueType(value) && complex.test(target)) {
                value = getAnimatableNone(key, target);
            }
            this.setBaseTarget(key, isMotionValue(value) ? value.get() : value);
        }
        return isMotionValue(value) ? value.get() : value;
    }
    /**
     * Set the base target to later animate back to. This is currently
     * only hydrated on creation and when we first read a value.
     */
    setBaseTarget(key, value) {
        this.baseTarget[key] = value;
    }
    /**
     * Find the base target for a value thats been removed from all animation
     * props.
     */
    getBaseTarget(key) {
        var _a;
        const { initial } = this.props;
        let valueFromInitial;
        if (typeof initial === "string" || typeof initial === "object") {
            const variant = resolveVariantFromProps(this.props, initial, (_a = this.presenceContext) === null || _a === void 0 ? void 0 : _a.custom);
            if (variant) {
                valueFromInitial = variant[key];
            }
        }
        /**
         * If this value still exists in the current initial variant, read that.
         */
        if (initial && valueFromInitial !== undefined) {
            return valueFromInitial;
        }
        /**
         * Alternatively, if this VisualElement config has defined a getBaseTarget
         * so we can read the value from an alternative source, try that.
         */
        const target = this.getBaseTargetFromProps(this.props, key);
        if (target !== undefined && !isMotionValue(target))
            return target;
        /**
         * If the value was initially defined on initial, but it doesn't any more,
         * return undefined. Otherwise return the value as initially read from the DOM.
         */
        return this.initialValues[key] !== undefined &&
            valueFromInitial === undefined
            ? undefined
            : this.baseTarget[key];
    }
    on(eventName, callback) {
        if (!this.events[eventName]) {
            this.events[eventName] = new SubscriptionManager();
        }
        return this.events[eventName].add(callback);
    }
    notify(eventName, ...args) {
        if (this.events[eventName]) {
            this.events[eventName].notify(...args);
        }
    }
}

class DOMVisualElement extends VisualElement {
    constructor() {
        super(...arguments);
        this.KeyframeResolver = DOMKeyframesResolver;
    }
    sortInstanceNodePosition(a, b) {
        /**
         * compareDocumentPosition returns a bitmask, by using the bitwise &
         * we're returning true if 2 in that bitmask is set to true. 2 is set
         * to true if b preceeds a.
         */
        return a.compareDocumentPosition(b) & 2 ? 1 : -1;
    }
    getBaseTargetFromProps(props, key) {
        return props.style
            ? props.style[key]
            : undefined;
    }
    removeValueFromRenderState(key, { vars, style }) {
        delete vars[key];
        delete style[key];
    }
    handleChildMotionValue() {
        if (this.childSubscription) {
            this.childSubscription();
            delete this.childSubscription;
        }
        const { children } = this.props;
        if (isMotionValue(children)) {
            this.childSubscription = children.on("change", (latest) => {
                if (this.current) {
                    this.current.textContent = `${latest}`;
                }
            });
        }
    }
}

/**
 * Provided a value and a ValueType, returns the value as that value type.
 */
const getValueAsType = (value, type) => {
    return type && typeof value === "number"
        ? type.transform(value)
        : value;
};

const translateAlias = {
    x: "translateX",
    y: "translateY",
    z: "translateZ",
    transformPerspective: "perspective",
};
const numTransforms = transformPropOrder.length;
/**
 * Build a CSS transform style from individual x/y/scale etc properties.
 *
 * This outputs with a default order of transforms/scales/rotations, this can be customised by
 * providing a transformTemplate function.
 */
function buildTransform(latestValues, transform, transformTemplate) {
    // The transform string we're going to build into.
    let transformString = "";
    let transformIsDefault = true;
    /**
     * Loop over all possible transforms in order, adding the ones that
     * are present to the transform string.
     */
    for (let i = 0; i < numTransforms; i++) {
        const key = transformPropOrder[i];
        const value = latestValues[key];
        if (value === undefined)
            continue;
        let valueIsDefault = true;
        if (typeof value === "number") {
            valueIsDefault = value === (key.startsWith("scale") ? 1 : 0);
        }
        else {
            valueIsDefault = parseFloat(value) === 0;
        }
        if (!valueIsDefault || transformTemplate) {
            const valueAsType = getValueAsType(value, numberValueTypes[key]);
            if (!valueIsDefault) {
                transformIsDefault = false;
                const transformName = translateAlias[key] || key;
                transformString += `${transformName}(${valueAsType}) `;
            }
            if (transformTemplate) {
                transform[key] = valueAsType;
            }
        }
    }
    transformString = transformString.trim();
    // If we have a custom `transform` template, pass our transform values and
    // generated transformString to that before returning
    if (transformTemplate) {
        transformString = transformTemplate(transform, transformIsDefault ? "" : transformString);
    }
    else if (transformIsDefault) {
        transformString = "none";
    }
    return transformString;
}

function buildHTMLStyles(state, latestValues, transformTemplate) {
    const { style, vars, transformOrigin } = state;
    // Track whether we encounter any transform or transformOrigin values.
    let hasTransform = false;
    let hasTransformOrigin = false;
    /**
     * Loop over all our latest animated values and decide whether to handle them
     * as a style or CSS variable.
     *
     * Transforms and transform origins are kept separately for further processing.
     */
    for (const key in latestValues) {
        const value = latestValues[key];
        if (transformProps.has(key)) {
            // If this is a transform, flag to enable further transform processing
            hasTransform = true;
            continue;
        }
        else if (isCSSVariableName(key)) {
            vars[key] = value;
            continue;
        }
        else {
            // Convert the value to its default value type, ie 0 -> "0px"
            const valueAsType = getValueAsType(value, numberValueTypes[key]);
            if (key.startsWith("origin")) {
                // If this is a transform origin, flag and enable further transform-origin processing
                hasTransformOrigin = true;
                transformOrigin[key] =
                    valueAsType;
            }
            else {
                style[key] = valueAsType;
            }
        }
    }
    if (!latestValues.transform) {
        if (hasTransform || transformTemplate) {
            style.transform = buildTransform(latestValues, state.transform, transformTemplate);
        }
        else if (style.transform) {
            /**
             * If we have previously created a transform but currently don't have any,
             * reset transform style to none.
             */
            style.transform = "none";
        }
    }
    /**
     * Build a transformOrigin style. Uses the same defaults as the browser for
     * undefined origins.
     */
    if (hasTransformOrigin) {
        const { originX = "50%", originY = "50%", originZ = 0, } = transformOrigin;
        style.transformOrigin = `${originX} ${originY} ${originZ}`;
    }
}

const dashKeys = {
    offset: "stroke-dashoffset",
    array: "stroke-dasharray",
};
const camelKeys = {
    offset: "strokeDashoffset",
    array: "strokeDasharray",
};
/**
 * Build SVG path properties. Uses the path's measured length to convert
 * our custom pathLength, pathSpacing and pathOffset into stroke-dashoffset
 * and stroke-dasharray attributes.
 *
 * This function is mutative to reduce per-frame GC.
 */
function buildSVGPath(attrs, length, spacing = 1, offset = 0, useDashCase = true) {
    // Normalise path length by setting SVG attribute pathLength to 1
    attrs.pathLength = 1;
    // We use dash case when setting attributes directly to the DOM node and camel case
    // when defining props on a React component.
    const keys = useDashCase ? dashKeys : camelKeys;
    // Build the dash offset
    attrs[keys.offset] = px.transform(-offset);
    // Build the dash array
    const pathLength = px.transform(length);
    const pathSpacing = px.transform(spacing);
    attrs[keys.array] = `${pathLength} ${pathSpacing}`;
}

function calcOrigin(origin, offset, size) {
    return typeof origin === "string"
        ? origin
        : px.transform(offset + size * origin);
}
/**
 * The SVG transform origin defaults are different to CSS and is less intuitive,
 * so we use the measured dimensions of the SVG to reconcile these.
 */
function calcSVGTransformOrigin(dimensions, originX, originY) {
    const pxOriginX = calcOrigin(originX, dimensions.x, dimensions.width);
    const pxOriginY = calcOrigin(originY, dimensions.y, dimensions.height);
    return `${pxOriginX} ${pxOriginY}`;
}

/**
 * Build SVG visual attrbutes, like cx and style.transform
 */
function buildSVGAttrs(state, { attrX, attrY, attrScale, originX, originY, pathLength, pathSpacing = 1, pathOffset = 0, 
// This is object creation, which we try to avoid per-frame.
...latest }, isSVGTag, transformTemplate) {
    buildHTMLStyles(state, latest, transformTemplate);
    /**
     * For svg tags we just want to make sure viewBox is animatable and treat all the styles
     * as normal HTML tags.
     */
    if (isSVGTag) {
        if (state.style.viewBox) {
            state.attrs.viewBox = state.style.viewBox;
        }
        return;
    }
    state.attrs = state.style;
    state.style = {};
    const { attrs, style, dimensions } = state;
    /**
     * However, we apply transforms as CSS transforms. So if we detect a transform we take it from attrs
     * and copy it into style.
     */
    if (attrs.transform) {
        if (dimensions)
            style.transform = attrs.transform;
        delete attrs.transform;
    }
    // Parse transformOrigin
    if (dimensions &&
        (originX !== undefined || originY !== undefined || style.transform)) {
        style.transformOrigin = calcSVGTransformOrigin(dimensions, originX !== undefined ? originX : 0.5, originY !== undefined ? originY : 0.5);
    }
    // Render attrX/attrY/attrScale as attributes
    if (attrX !== undefined)
        attrs.x = attrX;
    if (attrY !== undefined)
        attrs.y = attrY;
    if (attrScale !== undefined)
        attrs.scale = attrScale;
    // Build SVG path if one has been defined
    if (pathLength !== undefined) {
        buildSVGPath(attrs, pathLength, pathSpacing, pathOffset, false);
    }
}

/**
 * A set of attribute names that are always read/written as camel case.
 */
const camelCaseAttributes = new Set([
    "baseFrequency",
    "diffuseConstant",
    "kernelMatrix",
    "kernelUnitLength",
    "keySplines",
    "keyTimes",
    "limitingConeAngle",
    "markerHeight",
    "markerWidth",
    "numOctaves",
    "targetX",
    "targetY",
    "surfaceScale",
    "specularConstant",
    "specularExponent",
    "stdDeviation",
    "tableValues",
    "viewBox",
    "gradientTransform",
    "pathLength",
    "startOffset",
    "textLength",
    "lengthAdjust",
]);

const isSVGTag = (tag) => typeof tag === "string" && tag.toLowerCase() === "svg";

function renderHTML(element, { style, vars }, styleProp, projection) {
    Object.assign(element.style, style, projection && projection.getProjectionStyles(styleProp));
    // Loop over any CSS variables and assign those.
    for (const key in vars) {
        element.style.setProperty(key, vars[key]);
    }
}

function renderSVG(element, renderState, _styleProp, projection) {
    renderHTML(element, renderState, undefined, projection);
    for (const key in renderState.attrs) {
        element.setAttribute(!camelCaseAttributes.has(key) ? camelToDash(key) : key, renderState.attrs[key]);
    }
}

const scaleCorrectors = {};
function addScaleCorrector(correctors) {
    Object.assign(scaleCorrectors, correctors);
}

function isForcedMotionValue(key, { layout, layoutId }) {
    return (transformProps.has(key) ||
        key.startsWith("origin") ||
        ((layout || layoutId !== undefined) &&
            (!!scaleCorrectors[key] || key === "opacity")));
}

function scrapeMotionValuesFromProps$1(props, prevProps, visualElement) {
    var _a;
    const { style } = props;
    const newValues = {};
    for (const key in style) {
        if (isMotionValue(style[key]) ||
            (prevProps.style &&
                isMotionValue(prevProps.style[key])) ||
            isForcedMotionValue(key, props) ||
            ((_a = visualElement === null || visualElement === void 0 ? void 0 : visualElement.getValue(key)) === null || _a === void 0 ? void 0 : _a.liveStyle) !== undefined) {
            newValues[key] = style[key];
        }
    }
    return newValues;
}

function scrapeMotionValuesFromProps(props, prevProps, visualElement) {
    const newValues = scrapeMotionValuesFromProps$1(props, prevProps, visualElement);
    for (const key in props) {
        if (isMotionValue(props[key]) ||
            isMotionValue(prevProps[key])) {
            const targetKey = transformPropOrder.indexOf(key) !== -1
                ? "attr" + key.charAt(0).toUpperCase() + key.substring(1)
                : key;
            newValues[targetKey] = props[key];
        }
    }
    return newValues;
}

class SVGVisualElement extends DOMVisualElement {
    constructor() {
        super(...arguments);
        this.type = "svg";
        this.isSVGTag = false;
        this.measureInstanceViewportBox = createBox;
    }
    getBaseTargetFromProps(props, key) {
        return props[key];
    }
    readValueFromInstance(instance, key) {
        if (transformProps.has(key)) {
            const defaultType = getDefaultValueType(key);
            return defaultType ? defaultType.default || 0 : 0;
        }
        key = !camelCaseAttributes.has(key) ? camelToDash(key) : key;
        return instance.getAttribute(key);
    }
    scrapeMotionValuesFromProps(props, prevProps, visualElement) {
        return scrapeMotionValuesFromProps(props, prevProps, visualElement);
    }
    build(renderState, latestValues, props) {
        buildSVGAttrs(renderState, latestValues, this.isSVGTag, props.transformTemplate);
    }
    renderInstance(instance, renderState, styleProp, projection) {
        renderSVG(instance, renderState, styleProp, projection);
    }
    mount(instance) {
        this.isSVGTag = isSVGTag(instance.tagName);
        super.mount(instance);
    }
}

function getComputedStyle(element) {
    return window.getComputedStyle(element);
}
class HTMLVisualElement extends DOMVisualElement {
    constructor() {
        super(...arguments);
        this.type = "html";
        this.renderInstance = renderHTML;
    }
    readValueFromInstance(instance, key) {
        if (transformProps.has(key)) {
            const defaultType = getDefaultValueType(key);
            return defaultType ? defaultType.default || 0 : 0;
        }
        else {
            const computedStyle = getComputedStyle(instance);
            const value = (isCSSVariableName(key)
                ? computedStyle.getPropertyValue(key)
                : computedStyle[key]) || 0;
            return typeof value === "string" ? value.trim() : value;
        }
    }
    measureInstanceViewportBox(instance, { transformPagePoint }) {
        return measureViewportBox(instance, transformPagePoint);
    }
    build(renderState, latestValues, props) {
        buildHTMLStyles(renderState, latestValues, props.transformTemplate);
    }
    scrapeMotionValuesFromProps(props, prevProps, visualElement) {
        return scrapeMotionValuesFromProps$1(props, prevProps, visualElement);
    }
}

/**
 * Timeout defined in ms
 */
function delay(callback, timeout) {
    const start = time.now();
    const checkElapsed = ({ timestamp }) => {
        const elapsed = timestamp - start;
        if (elapsed >= timeout) {
            cancelFrame(checkElapsed);
            callback(elapsed - timeout);
        }
    };
    frame.read(checkElapsed, true);
    return () => cancelFrame(checkElapsed);
}

const { schedule: microtask, cancel: cancelMicrotask } = createRenderBatcher(queueMicrotask, false);

const compareByDepth = (a, b) => a.depth - b.depth;

class FlatTree {
    constructor() {
        this.children = [];
        this.isDirty = false;
    }
    add(child) {
        addUniqueItem(this.children, child);
        this.isDirty = true;
    }
    remove(child) {
        removeItem(this.children, child);
        this.isDirty = true;
    }
    forEach(callback) {
        this.isDirty && this.children.sort(compareByDepth);
        this.isDirty = false;
        this.children.forEach(callback);
    }
}

/**
 * If the provided value is a MotionValue, this returns the actual value, otherwise just the value itself
 *
 * TODO: Remove and move to library
 */
function resolveMotionValue(value) {
    const unwrappedValue = isMotionValue(value) ? value.get() : value;
    return isCustomValue(unwrappedValue)
        ? unwrappedValue.toValue()
        : unwrappedValue;
}

const borders = ["TopLeft", "TopRight", "BottomLeft", "BottomRight"];
const numBorders = borders.length;
const asNumber = (value) => typeof value === "string" ? parseFloat(value) : value;
const isPx = (value) => typeof value === "number" || px.test(value);
function mixValues(target, follow, lead, progress, shouldCrossfadeOpacity, isOnlyMember) {
    if (shouldCrossfadeOpacity) {
        target.opacity = mixNumber$1(0, 
        // TODO Reinstate this if only child
        lead.opacity !== undefined ? lead.opacity : 1, easeCrossfadeIn(progress));
        target.opacityExit = mixNumber$1(follow.opacity !== undefined ? follow.opacity : 1, 0, easeCrossfadeOut(progress));
    }
    else if (isOnlyMember) {
        target.opacity = mixNumber$1(follow.opacity !== undefined ? follow.opacity : 1, lead.opacity !== undefined ? lead.opacity : 1, progress);
    }
    /**
     * Mix border radius
     */
    for (let i = 0; i < numBorders; i++) {
        const borderLabel = `border${borders[i]}Radius`;
        let followRadius = getRadius(follow, borderLabel);
        let leadRadius = getRadius(lead, borderLabel);
        if (followRadius === undefined && leadRadius === undefined)
            continue;
        followRadius || (followRadius = 0);
        leadRadius || (leadRadius = 0);
        const canMix = followRadius === 0 ||
            leadRadius === 0 ||
            isPx(followRadius) === isPx(leadRadius);
        if (canMix) {
            target[borderLabel] = Math.max(mixNumber$1(asNumber(followRadius), asNumber(leadRadius), progress), 0);
            if (percent.test(leadRadius) || percent.test(followRadius)) {
                target[borderLabel] += "%";
            }
        }
        else {
            target[borderLabel] = leadRadius;
        }
    }
    /**
     * Mix rotation
     */
    if (follow.rotate || lead.rotate) {
        target.rotate = mixNumber$1(follow.rotate || 0, lead.rotate || 0, progress);
    }
}
function getRadius(values, radiusName) {
    return values[radiusName] !== undefined
        ? values[radiusName]
        : values.borderRadius;
}
// /**
//  * We only want to mix the background color if there's a follow element
//  * that we're not crossfading opacity between. For instance with switch
//  * AnimateSharedLayout animations, this helps the illusion of a continuous
//  * element being animated but also cuts down on the number of paints triggered
//  * for elements where opacity is doing that work for us.
//  */
// if (
//     !hasFollowElement &&
//     latestLeadValues.backgroundColor &&
//     latestFollowValues.backgroundColor
// ) {
//     /**
//      * This isn't ideal performance-wise as mixColor is creating a new function every frame.
//      * We could probably create a mixer that runs at the start of the animation but
//      * the idea behind the crossfader is that it runs dynamically between two potentially
//      * changing targets (ie opacity or borderRadius may be animating independently via variants)
//      */
//     leadState.backgroundColor = followState.backgroundColor = mixColor(
//         latestFollowValues.backgroundColor as string,
//         latestLeadValues.backgroundColor as string
//     )(p)
// }
const easeCrossfadeIn = /*@__PURE__*/ compress(0, 0.5, circOut);
const easeCrossfadeOut = /*@__PURE__*/ compress(0.5, 0.95, motionUtils.noop);
function compress(min, max, easing) {
    return (p) => {
        // Could replace ifs with clamp
        if (p < min)
            return 0;
        if (p > max)
            return 1;
        return easing(motionUtils.progress(min, max, p));
    };
}

/**
 * Reset an axis to the provided origin box.
 *
 * This is a mutative operation.
 */
function copyAxisInto(axis, originAxis) {
    axis.min = originAxis.min;
    axis.max = originAxis.max;
}
/**
 * Reset a box to the provided origin box.
 *
 * This is a mutative operation.
 */
function copyBoxInto(box, originBox) {
    copyAxisInto(box.x, originBox.x);
    copyAxisInto(box.y, originBox.y);
}
/**
 * Reset a delta to the provided origin box.
 *
 * This is a mutative operation.
 */
function copyAxisDeltaInto(delta, originDelta) {
    delta.translate = originDelta.translate;
    delta.scale = originDelta.scale;
    delta.originPoint = originDelta.originPoint;
    delta.origin = originDelta.origin;
}

/**
 * Remove a delta from a point. This is essentially the steps of applyPointDelta in reverse
 */
function removePointDelta(point, translate, scale, originPoint, boxScale) {
    point -= translate;
    point = scalePoint(point, 1 / scale, originPoint);
    if (boxScale !== undefined) {
        point = scalePoint(point, 1 / boxScale, originPoint);
    }
    return point;
}
/**
 * Remove a delta from an axis. This is essentially the steps of applyAxisDelta in reverse
 */
function removeAxisDelta(axis, translate = 0, scale = 1, origin = 0.5, boxScale, originAxis = axis, sourceAxis = axis) {
    if (percent.test(translate)) {
        translate = parseFloat(translate);
        const relativeProgress = mixNumber$1(sourceAxis.min, sourceAxis.max, translate / 100);
        translate = relativeProgress - sourceAxis.min;
    }
    if (typeof translate !== "number")
        return;
    let originPoint = mixNumber$1(originAxis.min, originAxis.max, origin);
    if (axis === originAxis)
        originPoint -= translate;
    axis.min = removePointDelta(axis.min, translate, scale, originPoint, boxScale);
    axis.max = removePointDelta(axis.max, translate, scale, originPoint, boxScale);
}
/**
 * Remove a transforms from an axis. This is essentially the steps of applyAxisTransforms in reverse
 * and acts as a bridge between motion values and removeAxisDelta
 */
function removeAxisTransforms(axis, transforms, [key, scaleKey, originKey], origin, sourceAxis) {
    removeAxisDelta(axis, transforms[key], transforms[scaleKey], transforms[originKey], transforms.scale, origin, sourceAxis);
}
/**
 * The names of the motion values we want to apply as translation, scale and origin.
 */
const xKeys = ["x", "scaleX", "originX"];
const yKeys = ["y", "scaleY", "originY"];
/**
 * Remove a transforms from an box. This is essentially the steps of applyAxisBox in reverse
 * and acts as a bridge between motion values and removeAxisDelta
 */
function removeBoxTransforms(box, transforms, originBox, sourceBox) {
    removeAxisTransforms(box.x, transforms, xKeys, originBox ? originBox.x : undefined, sourceBox ? sourceBox.x : undefined);
    removeAxisTransforms(box.y, transforms, yKeys, originBox ? originBox.y : undefined, sourceBox ? sourceBox.y : undefined);
}

function isAxisDeltaZero(delta) {
    return delta.translate === 0 && delta.scale === 1;
}
function isDeltaZero(delta) {
    return isAxisDeltaZero(delta.x) && isAxisDeltaZero(delta.y);
}
function axisEquals(a, b) {
    return a.min === b.min && a.max === b.max;
}
function boxEquals(a, b) {
    return axisEquals(a.x, b.x) && axisEquals(a.y, b.y);
}
function axisEqualsRounded(a, b) {
    return (Math.round(a.min) === Math.round(b.min) &&
        Math.round(a.max) === Math.round(b.max));
}
function boxEqualsRounded(a, b) {
    return axisEqualsRounded(a.x, b.x) && axisEqualsRounded(a.y, b.y);
}
function aspectRatio(box) {
    return calcLength(box.x) / calcLength(box.y);
}
function axisDeltaEquals(a, b) {
    return (a.translate === b.translate &&
        a.scale === b.scale &&
        a.originPoint === b.originPoint);
}

class NodeStack {
    constructor() {
        this.members = [];
    }
    add(node) {
        addUniqueItem(this.members, node);
        node.scheduleRender();
    }
    remove(node) {
        removeItem(this.members, node);
        if (node === this.prevLead) {
            this.prevLead = undefined;
        }
        if (node === this.lead) {
            const prevLead = this.members[this.members.length - 1];
            if (prevLead) {
                this.promote(prevLead);
            }
        }
    }
    relegate(node) {
        const indexOfNode = this.members.findIndex((member) => node === member);
        if (indexOfNode === 0)
            return false;
        /**
         * Find the next projection node that is present
         */
        let prevLead;
        for (let i = indexOfNode; i >= 0; i--) {
            const member = this.members[i];
            if (member.isPresent !== false) {
                prevLead = member;
                break;
            }
        }
        if (prevLead) {
            this.promote(prevLead);
            return true;
        }
        else {
            return false;
        }
    }
    promote(node, preserveFollowOpacity) {
        const prevLead = this.lead;
        if (node === prevLead)
            return;
        this.prevLead = prevLead;
        this.lead = node;
        node.show();
        if (prevLead) {
            prevLead.instance && prevLead.scheduleRender();
            node.scheduleRender();
            node.resumeFrom = prevLead;
            if (preserveFollowOpacity) {
                node.resumeFrom.preserveOpacity = true;
            }
            if (prevLead.snapshot) {
                node.snapshot = prevLead.snapshot;
                node.snapshot.latestValues =
                    prevLead.animationValues || prevLead.latestValues;
            }
            if (node.root && node.root.isUpdating) {
                node.isLayoutDirty = true;
            }
            const { crossfade } = node.options;
            if (crossfade === false) {
                prevLead.hide();
            }
            /**
             * TODO:
             *   - Test border radius when previous node was deleted
             *   - boxShadow mixing
             *   - Shared between element A in scrolled container and element B (scroll stays the same or changes)
             *   - Shared between element A in transformed container and element B (transform stays the same or changes)
             *   - Shared between element A in scrolled page and element B (scroll stays the same or changes)
             * ---
             *   - Crossfade opacity of root nodes
             *   - layoutId changes after animation
             *   - layoutId changes mid animation
             */
        }
    }
    exitAnimationComplete() {
        this.members.forEach((node) => {
            const { options, resumingFrom } = node;
            options.onExitComplete && options.onExitComplete();
            if (resumingFrom) {
                resumingFrom.options.onExitComplete &&
                    resumingFrom.options.onExitComplete();
            }
        });
    }
    scheduleRender() {
        this.members.forEach((node) => {
            node.instance && node.scheduleRender(false);
        });
    }
    /**
     * Clear any leads that have been removed this render to prevent them from being
     * used in future animations and to prevent memory leaks
     */
    removeLeadSnapshot() {
        if (this.lead && this.lead.snapshot) {
            this.lead.snapshot = undefined;
        }
    }
}

function buildProjectionTransform(delta, treeScale, latestTransform) {
    let transform = "";
    /**
     * The translations we use to calculate are always relative to the viewport coordinate space.
     * But when we apply scales, we also scale the coordinate space of an element and its children.
     * For instance if we have a treeScale (the culmination of all parent scales) of 0.5 and we need
     * to move an element 100 pixels, we actually need to move it 200 in within that scaled space.
     */
    const xTranslate = delta.x.translate / treeScale.x;
    const yTranslate = delta.y.translate / treeScale.y;
    const zTranslate = (latestTransform === null || latestTransform === void 0 ? void 0 : latestTransform.z) || 0;
    if (xTranslate || yTranslate || zTranslate) {
        transform = `translate3d(${xTranslate}px, ${yTranslate}px, ${zTranslate}px) `;
    }
    /**
     * Apply scale correction for the tree transform.
     * This will apply scale to the screen-orientated axes.
     */
    if (treeScale.x !== 1 || treeScale.y !== 1) {
        transform += `scale(${1 / treeScale.x}, ${1 / treeScale.y}) `;
    }
    if (latestTransform) {
        const { transformPerspective, rotate, rotateX, rotateY, skewX, skewY } = latestTransform;
        if (transformPerspective)
            transform = `perspective(${transformPerspective}px) ${transform}`;
        if (rotate)
            transform += `rotate(${rotate}deg) `;
        if (rotateX)
            transform += `rotateX(${rotateX}deg) `;
        if (rotateY)
            transform += `rotateY(${rotateY}deg) `;
        if (skewX)
            transform += `skewX(${skewX}deg) `;
        if (skewY)
            transform += `skewY(${skewY}deg) `;
    }
    /**
     * Apply scale to match the size of the element to the size we want it.
     * This will apply scale to the element-orientated axes.
     */
    const elementScaleX = delta.x.scale * treeScale.x;
    const elementScaleY = delta.y.scale * treeScale.y;
    if (elementScaleX !== 1 || elementScaleY !== 1) {
        transform += `scale(${elementScaleX}, ${elementScaleY})`;
    }
    return transform || "none";
}

/**
 * This should only ever be modified on the client otherwise it'll
 * persist through server requests. If we need instanced states we
 * could lazy-init via root.
 */
const globalProjectionState = {
    /**
     * Global flag as to whether the tree has animated since the last time
     * we resized the window
     */
    hasAnimatedSinceResize: true,
    /**
     * We set this to true once, on the first update. Any nodes added to the tree beyond that
     * update will be given a `data-projection-id` attribute.
     */
    hasEverUpdated: false,
};

const metrics = {
    type: "projectionFrame",
    totalNodes: 0,
    resolvedTargetDeltas: 0,
    recalculatedProjection: 0,
};
const isDebug = typeof window !== "undefined" && window.MotionDebug !== undefined;
const transformAxes = ["", "X", "Y", "Z"];
const hiddenVisibility = { visibility: "hidden" };
/**
 * We use 1000 as the animation target as 0-1000 maps better to pixels than 0-1
 * which has a noticeable difference in spring animations
 */
const animationTarget = 1000;
let id = 0;
function resetDistortingTransform(key, visualElement, values, sharedAnimationValues) {
    const { latestValues } = visualElement;
    // Record the distorting transform and then temporarily set it to 0
    if (latestValues[key]) {
        values[key] = latestValues[key];
        visualElement.setStaticValue(key, 0);
        if (sharedAnimationValues) {
            sharedAnimationValues[key] = 0;
        }
    }
}
function cancelTreeOptimisedTransformAnimations(projectionNode) {
    projectionNode.hasCheckedOptimisedAppear = true;
    if (projectionNode.root === projectionNode)
        return;
    const { visualElement } = projectionNode.options;
    if (!visualElement)
        return;
    const appearId = getOptimisedAppearId(visualElement);
    if (window.MotionHasOptimisedAnimation(appearId, "transform")) {
        const { layout, layoutId } = projectionNode.options;
        window.MotionCancelOptimisedAnimation(appearId, "transform", frame, !(layout || layoutId));
    }
    const { parent } = projectionNode;
    if (parent && !parent.hasCheckedOptimisedAppear) {
        cancelTreeOptimisedTransformAnimations(parent);
    }
}
function createProjectionNode$1({ attachResizeListener, defaultParent, measureScroll, checkIsScrollRoot, resetTransform, }) {
    return class ProjectionNode {
        constructor(latestValues = {}, parent = defaultParent === null || defaultParent === void 0 ? void 0 : defaultParent()) {
            /**
             * A unique ID generated for every projection node.
             */
            this.id = id++;
            /**
             * An id that represents a unique session instigated by startUpdate.
             */
            this.animationId = 0;
            /**
             * A Set containing all this component's children. This is used to iterate
             * through the children.
             *
             * TODO: This could be faster to iterate as a flat array stored on the root node.
             */
            this.children = new Set();
            /**
             * Options for the node. We use this to configure what kind of layout animations
             * we should perform (if any).
             */
            this.options = {};
            /**
             * We use this to detect when its safe to shut down part of a projection tree.
             * We have to keep projecting children for scale correction and relative projection
             * until all their parents stop performing layout animations.
             */
            this.isTreeAnimating = false;
            this.isAnimationBlocked = false;
            /**
             * Flag to true if we think this layout has been changed. We can't always know this,
             * currently we set it to true every time a component renders, or if it has a layoutDependency
             * if that has changed between renders. Additionally, components can be grouped by LayoutGroup
             * and if one node is dirtied, they all are.
             */
            this.isLayoutDirty = false;
            /**
             * Flag to true if we think the projection calculations for this node needs
             * recalculating as a result of an updated transform or layout animation.
             */
            this.isProjectionDirty = false;
            /**
             * Flag to true if the layout *or* transform has changed. This then gets propagated
             * throughout the projection tree, forcing any element below to recalculate on the next frame.
             */
            this.isSharedProjectionDirty = false;
            /**
             * Flag transform dirty. This gets propagated throughout the whole tree but is only
             * respected by shared nodes.
             */
            this.isTransformDirty = false;
            /**
             * Block layout updates for instant layout transitions throughout the tree.
             */
            this.updateManuallyBlocked = false;
            this.updateBlockedByResize = false;
            /**
             * Set to true between the start of the first `willUpdate` call and the end of the `didUpdate`
             * call.
             */
            this.isUpdating = false;
            /**
             * If this is an SVG element we currently disable projection transforms
             */
            this.isSVG = false;
            /**
             * Flag to true (during promotion) if a node doing an instant layout transition needs to reset
             * its projection styles.
             */
            this.needsReset = false;
            /**
             * Flags whether this node should have its transform reset prior to measuring.
             */
            this.shouldResetTransform = false;
            /**
             * Store whether this node has been checked for optimised appear animations. As
             * effects fire bottom-up, and we want to look up the tree for appear animations,
             * this makes sure we only check each path once, stopping at nodes that
             * have already been checked.
             */
            this.hasCheckedOptimisedAppear = false;
            /**
             * An object representing the calculated contextual/accumulated/tree scale.
             * This will be used to scale calculcated projection transforms, as these are
             * calculated in screen-space but need to be scaled for elements to layoutly
             * make it to their calculated destinations.
             *
             * TODO: Lazy-init
             */
            this.treeScale = { x: 1, y: 1 };
            /**
             *
             */
            this.eventHandlers = new Map();
            this.hasTreeAnimated = false;
            // Note: Currently only running on root node
            this.updateScheduled = false;
            this.scheduleUpdate = () => this.update();
            this.projectionUpdateScheduled = false;
            this.checkUpdateFailed = () => {
                if (this.isUpdating) {
                    this.isUpdating = false;
                    this.clearAllSnapshots();
                }
            };
            /**
             * This is a multi-step process as shared nodes might be of different depths. Nodes
             * are sorted by depth order, so we need to resolve the entire tree before moving to
             * the next step.
             */
            this.updateProjection = () => {
                this.projectionUpdateScheduled = false;
                /**
                 * Reset debug counts. Manually resetting rather than creating a new
                 * object each frame.
                 */
                if (isDebug) {
                    metrics.totalNodes =
                        metrics.resolvedTargetDeltas =
                            metrics.recalculatedProjection =
                                0;
                }
                this.nodes.forEach(propagateDirtyNodes);
                this.nodes.forEach(resolveTargetDelta);
                this.nodes.forEach(calcProjection);
                this.nodes.forEach(cleanDirtyNodes);
                if (isDebug) {
                    window.MotionDebug.record(metrics);
                }
            };
            /**
             * Frame calculations
             */
            this.resolvedRelativeTargetAt = 0.0;
            this.hasProjected = false;
            this.isVisible = true;
            this.animationProgress = 0;
            /**
             * Shared layout
             */
            // TODO Only running on root node
            this.sharedNodes = new Map();
            this.latestValues = latestValues;
            this.root = parent ? parent.root || parent : this;
            this.path = parent ? [...parent.path, parent] : [];
            this.parent = parent;
            this.depth = parent ? parent.depth + 1 : 0;
            for (let i = 0; i < this.path.length; i++) {
                this.path[i].shouldResetTransform = true;
            }
            if (this.root === this)
                this.nodes = new FlatTree();
        }
        addEventListener(name, handler) {
            if (!this.eventHandlers.has(name)) {
                this.eventHandlers.set(name, new SubscriptionManager());
            }
            return this.eventHandlers.get(name).add(handler);
        }
        notifyListeners(name, ...args) {
            const subscriptionManager = this.eventHandlers.get(name);
            subscriptionManager && subscriptionManager.notify(...args);
        }
        hasListeners(name) {
            return this.eventHandlers.has(name);
        }
        /**
         * Lifecycles
         */
        mount(instance, isLayoutDirty = this.root.hasTreeAnimated) {
            if (this.instance)
                return;
            this.isSVG = isSVGElement(instance);
            this.instance = instance;
            const { layoutId, layout, visualElement } = this.options;
            if (visualElement && !visualElement.current) {
                visualElement.mount(instance);
            }
            this.root.nodes.add(this);
            this.parent && this.parent.children.add(this);
            if (isLayoutDirty && (layout || layoutId)) {
                this.isLayoutDirty = true;
            }
            if (attachResizeListener) {
                let cancelDelay;
                const resizeUnblockUpdate = () => (this.root.updateBlockedByResize = false);
                attachResizeListener(instance, () => {
                    this.root.updateBlockedByResize = true;
                    cancelDelay && cancelDelay();
                    cancelDelay = delay(resizeUnblockUpdate, 250);
                    if (globalProjectionState.hasAnimatedSinceResize) {
                        globalProjectionState.hasAnimatedSinceResize = false;
                        this.nodes.forEach(finishAnimation);
                    }
                });
            }
            if (layoutId) {
                this.root.registerSharedNode(layoutId, this);
            }
            // Only register the handler if it requires layout animation
            if (this.options.animate !== false &&
                visualElement &&
                (layoutId || layout)) {
                this.addEventListener("didUpdate", ({ delta, hasLayoutChanged, hasRelativeTargetChanged, layout: newLayout, }) => {
                    if (this.isTreeAnimationBlocked()) {
                        this.target = undefined;
                        this.relativeTarget = undefined;
                        return;
                    }
                    // TODO: Check here if an animation exists
                    const layoutTransition = this.options.transition ||
                        visualElement.getDefaultTransition() ||
                        defaultLayoutTransition;
                    const { onLayoutAnimationStart, onLayoutAnimationComplete, } = visualElement.getProps();
                    /**
                     * The target layout of the element might stay the same,
                     * but its position relative to its parent has changed.
                     */
                    const targetChanged = !this.targetLayout ||
                        !boxEqualsRounded(this.targetLayout, newLayout) ||
                        hasRelativeTargetChanged;
                    /**
                     * If the layout hasn't seemed to have changed, it might be that the
                     * element is visually in the same place in the document but its position
                     * relative to its parent has indeed changed. So here we check for that.
                     */
                    const hasOnlyRelativeTargetChanged = !hasLayoutChanged && hasRelativeTargetChanged;
                    if (this.options.layoutRoot ||
                        (this.resumeFrom && this.resumeFrom.instance) ||
                        hasOnlyRelativeTargetChanged ||
                        (hasLayoutChanged &&
                            (targetChanged || !this.currentAnimation))) {
                        if (this.resumeFrom) {
                            this.resumingFrom = this.resumeFrom;
                            this.resumingFrom.resumingFrom = undefined;
                        }
                        this.setAnimationOrigin(delta, hasOnlyRelativeTargetChanged);
                        const animationOptions = {
                            ...motionDom.getValueTransition(layoutTransition, "layout"),
                            onPlay: onLayoutAnimationStart,
                            onComplete: onLayoutAnimationComplete,
                        };
                        if (visualElement.shouldReduceMotion ||
                            this.options.layoutRoot) {
                            animationOptions.delay = 0;
                            animationOptions.type = false;
                        }
                        this.startAnimation(animationOptions);
                    }
                    else {
                        /**
                         * If the layout hasn't changed and we have an animation that hasn't started yet,
                         * finish it immediately. Otherwise it will be animating from a location
                         * that was probably never commited to screen and look like a jumpy box.
                         */
                        if (!hasLayoutChanged) {
                            finishAnimation(this);
                        }
                        if (this.isLead() && this.options.onExitComplete) {
                            this.options.onExitComplete();
                        }
                    }
                    this.targetLayout = newLayout;
                });
            }
        }
        unmount() {
            this.options.layoutId && this.willUpdate();
            this.root.nodes.remove(this);
            const stack = this.getStack();
            stack && stack.remove(this);
            this.parent && this.parent.children.delete(this);
            this.instance = undefined;
            cancelFrame(this.updateProjection);
        }
        // only on the root
        blockUpdate() {
            this.updateManuallyBlocked = true;
        }
        unblockUpdate() {
            this.updateManuallyBlocked = false;
        }
        isUpdateBlocked() {
            return this.updateManuallyBlocked || this.updateBlockedByResize;
        }
        isTreeAnimationBlocked() {
            return (this.isAnimationBlocked ||
                (this.parent && this.parent.isTreeAnimationBlocked()) ||
                false);
        }
        // Note: currently only running on root node
        startUpdate() {
            if (this.isUpdateBlocked())
                return;
            this.isUpdating = true;
            this.nodes && this.nodes.forEach(resetSkewAndRotation);
            this.animationId++;
        }
        getTransformTemplate() {
            const { visualElement } = this.options;
            return visualElement && visualElement.getProps().transformTemplate;
        }
        willUpdate(shouldNotifyListeners = true) {
            this.root.hasTreeAnimated = true;
            if (this.root.isUpdateBlocked()) {
                this.options.onExitComplete && this.options.onExitComplete();
                return;
            }
            /**
             * If we're running optimised appear animations then these must be
             * cancelled before measuring the DOM. This is so we can measure
             * the true layout of the element rather than the WAAPI animation
             * which will be unaffected by the resetSkewAndRotate step.
             *
             * Note: This is a DOM write. Worst case scenario is this is sandwiched
             * between other snapshot reads which will cause unnecessary style recalculations.
             * This has to happen here though, as we don't yet know which nodes will need
             * snapshots in startUpdate(), but we only want to cancel optimised animations
             * if a layout animation measurement is actually going to be affected by them.
             */
            if (window.MotionCancelOptimisedAnimation &&
                !this.hasCheckedOptimisedAppear) {
                cancelTreeOptimisedTransformAnimations(this);
            }
            !this.root.isUpdating && this.root.startUpdate();
            if (this.isLayoutDirty)
                return;
            this.isLayoutDirty = true;
            for (let i = 0; i < this.path.length; i++) {
                const node = this.path[i];
                node.shouldResetTransform = true;
                node.updateScroll("snapshot");
                if (node.options.layoutRoot) {
                    node.willUpdate(false);
                }
            }
            const { layoutId, layout } = this.options;
            if (layoutId === undefined && !layout)
                return;
            const transformTemplate = this.getTransformTemplate();
            this.prevTransformTemplateValue = transformTemplate
                ? transformTemplate(this.latestValues, "")
                : undefined;
            this.updateSnapshot();
            shouldNotifyListeners && this.notifyListeners("willUpdate");
        }
        update() {
            this.updateScheduled = false;
            const updateWasBlocked = this.isUpdateBlocked();
            // When doing an instant transition, we skip the layout update,
            // but should still clean up the measurements so that the next
            // snapshot could be taken correctly.
            if (updateWasBlocked) {
                this.unblockUpdate();
                this.clearAllSnapshots();
                this.nodes.forEach(clearMeasurements);
                return;
            }
            if (!this.isUpdating) {
                this.nodes.forEach(clearIsLayoutDirty);
            }
            this.isUpdating = false;
            /**
             * Write
             */
            this.nodes.forEach(resetTransformStyle);
            /**
             * Read ==================
             */
            // Update layout measurements of updated children
            this.nodes.forEach(updateLayout);
            /**
             * Write
             */
            // Notify listeners that the layout is updated
            this.nodes.forEach(notifyLayoutUpdate);
            this.clearAllSnapshots();
            /**
             * Manually flush any pending updates. Ideally
             * we could leave this to the following requestAnimationFrame but this seems
             * to leave a flash of incorrectly styled content.
             */
            const now = time.now();
            frameData.delta = clamp(0, 1000 / 60, now - frameData.timestamp);
            frameData.timestamp = now;
            frameData.isProcessing = true;
            frameSteps.update.process(frameData);
            frameSteps.preRender.process(frameData);
            frameSteps.render.process(frameData);
            frameData.isProcessing = false;
        }
        didUpdate() {
            if (!this.updateScheduled) {
                this.updateScheduled = true;
                microtask.read(this.scheduleUpdate);
            }
        }
        clearAllSnapshots() {
            this.nodes.forEach(clearSnapshot);
            this.sharedNodes.forEach(removeLeadSnapshots);
        }
        scheduleUpdateProjection() {
            if (!this.projectionUpdateScheduled) {
                this.projectionUpdateScheduled = true;
                frame.preRender(this.updateProjection, false, true);
            }
        }
        scheduleCheckAfterUnmount() {
            /**
             * If the unmounting node is in a layoutGroup and did trigger a willUpdate,
             * we manually call didUpdate to give a chance to the siblings to animate.
             * Otherwise, cleanup all snapshots to prevents future nodes from reusing them.
             */
            frame.postRender(() => {
                if (this.isLayoutDirty) {
                    this.root.didUpdate();
                }
                else {
                    this.root.checkUpdateFailed();
                }
            });
        }
        /**
         * Update measurements
         */
        updateSnapshot() {
            if (this.snapshot || !this.instance)
                return;
            this.snapshot = this.measure();
        }
        updateLayout() {
            if (!this.instance)
                return;
            // TODO: Incorporate into a forwarded scroll offset
            this.updateScroll();
            if (!(this.options.alwaysMeasureLayout && this.isLead()) &&
                !this.isLayoutDirty) {
                return;
            }
            /**
             * When a node is mounted, it simply resumes from the prevLead's
             * snapshot instead of taking a new one, but the ancestors scroll
             * might have updated while the prevLead is unmounted. We need to
             * update the scroll again to make sure the layout we measure is
             * up to date.
             */
            if (this.resumeFrom && !this.resumeFrom.instance) {
                for (let i = 0; i < this.path.length; i++) {
                    const node = this.path[i];
                    node.updateScroll();
                }
            }
            const prevLayout = this.layout;
            this.layout = this.measure(false);
            this.layoutCorrected = createBox();
            this.isLayoutDirty = false;
            this.projectionDelta = undefined;
            this.notifyListeners("measure", this.layout.layoutBox);
            const { visualElement } = this.options;
            visualElement &&
                visualElement.notify("LayoutMeasure", this.layout.layoutBox, prevLayout ? prevLayout.layoutBox : undefined);
        }
        updateScroll(phase = "measure") {
            let needsMeasurement = Boolean(this.options.layoutScroll && this.instance);
            if (this.scroll &&
                this.scroll.animationId === this.root.animationId &&
                this.scroll.phase === phase) {
                needsMeasurement = false;
            }
            if (needsMeasurement) {
                const isRoot = checkIsScrollRoot(this.instance);
                this.scroll = {
                    animationId: this.root.animationId,
                    phase,
                    isRoot,
                    offset: measureScroll(this.instance),
                    wasRoot: this.scroll ? this.scroll.isRoot : isRoot,
                };
            }
        }
        resetTransform() {
            if (!resetTransform)
                return;
            const isResetRequested = this.isLayoutDirty ||
                this.shouldResetTransform ||
                this.options.alwaysMeasureLayout;
            const hasProjection = this.projectionDelta && !isDeltaZero(this.projectionDelta);
            const transformTemplate = this.getTransformTemplate();
            const transformTemplateValue = transformTemplate
                ? transformTemplate(this.latestValues, "")
                : undefined;
            const transformTemplateHasChanged = transformTemplateValue !== this.prevTransformTemplateValue;
            if (isResetRequested &&
                (hasProjection ||
                    hasTransform(this.latestValues) ||
                    transformTemplateHasChanged)) {
                resetTransform(this.instance, transformTemplateValue);
                this.shouldResetTransform = false;
                this.scheduleRender();
            }
        }
        measure(removeTransform = true) {
            const pageBox = this.measurePageBox();
            let layoutBox = this.removeElementScroll(pageBox);
            /**
             * Measurements taken during the pre-render stage
             * still have transforms applied so we remove them
             * via calculation.
             */
            if (removeTransform) {
                layoutBox = this.removeTransform(layoutBox);
            }
            roundBox(layoutBox);
            return {
                animationId: this.root.animationId,
                measuredBox: pageBox,
                layoutBox,
                latestValues: {},
                source: this.id,
            };
        }
        measurePageBox() {
            var _a;
            const { visualElement } = this.options;
            if (!visualElement)
                return createBox();
            const box = visualElement.measureViewportBox();
            const wasInScrollRoot = ((_a = this.scroll) === null || _a === void 0 ? void 0 : _a.wasRoot) || this.path.some(checkNodeWasScrollRoot);
            if (!wasInScrollRoot) {
                // Remove viewport scroll to give page-relative coordinates
                const { scroll } = this.root;
                if (scroll) {
                    translateAxis(box.x, scroll.offset.x);
                    translateAxis(box.y, scroll.offset.y);
                }
            }
            return box;
        }
        removeElementScroll(box) {
            var _a;
            const boxWithoutScroll = createBox();
            copyBoxInto(boxWithoutScroll, box);
            if ((_a = this.scroll) === null || _a === void 0 ? void 0 : _a.wasRoot) {
                return boxWithoutScroll;
            }
            /**
             * Performance TODO: Keep a cumulative scroll offset down the tree
             * rather than loop back up the path.
             */
            for (let i = 0; i < this.path.length; i++) {
                const node = this.path[i];
                const { scroll, options } = node;
                if (node !== this.root && scroll && options.layoutScroll) {
                    /**
                     * If this is a new scroll root, we want to remove all previous scrolls
                     * from the viewport box.
                     */
                    if (scroll.wasRoot) {
                        copyBoxInto(boxWithoutScroll, box);
                    }
                    translateAxis(boxWithoutScroll.x, scroll.offset.x);
                    translateAxis(boxWithoutScroll.y, scroll.offset.y);
                }
            }
            return boxWithoutScroll;
        }
        applyTransform(box, transformOnly = false) {
            const withTransforms = createBox();
            copyBoxInto(withTransforms, box);
            for (let i = 0; i < this.path.length; i++) {
                const node = this.path[i];
                if (!transformOnly &&
                    node.options.layoutScroll &&
                    node.scroll &&
                    node !== node.root) {
                    transformBox(withTransforms, {
                        x: -node.scroll.offset.x,
                        y: -node.scroll.offset.y,
                    });
                }
                if (!hasTransform(node.latestValues))
                    continue;
                transformBox(withTransforms, node.latestValues);
            }
            if (hasTransform(this.latestValues)) {
                transformBox(withTransforms, this.latestValues);
            }
            return withTransforms;
        }
        removeTransform(box) {
            const boxWithoutTransform = createBox();
            copyBoxInto(boxWithoutTransform, box);
            for (let i = 0; i < this.path.length; i++) {
                const node = this.path[i];
                if (!node.instance)
                    continue;
                if (!hasTransform(node.latestValues))
                    continue;
                hasScale(node.latestValues) && node.updateSnapshot();
                const sourceBox = createBox();
                const nodeBox = node.measurePageBox();
                copyBoxInto(sourceBox, nodeBox);
                removeBoxTransforms(boxWithoutTransform, node.latestValues, node.snapshot ? node.snapshot.layoutBox : undefined, sourceBox);
            }
            if (hasTransform(this.latestValues)) {
                removeBoxTransforms(boxWithoutTransform, this.latestValues);
            }
            return boxWithoutTransform;
        }
        setTargetDelta(delta) {
            this.targetDelta = delta;
            this.root.scheduleUpdateProjection();
            this.isProjectionDirty = true;
        }
        setOptions(options) {
            this.options = {
                ...this.options,
                ...options,
                crossfade: options.crossfade !== undefined ? options.crossfade : true,
            };
        }
        clearMeasurements() {
            this.scroll = undefined;
            this.layout = undefined;
            this.snapshot = undefined;
            this.prevTransformTemplateValue = undefined;
            this.targetDelta = undefined;
            this.target = undefined;
            this.isLayoutDirty = false;
        }
        forceRelativeParentToResolveTarget() {
            if (!this.relativeParent)
                return;
            /**
             * If the parent target isn't up-to-date, force it to update.
             * This is an unfortunate de-optimisation as it means any updating relative
             * projection will cause all the relative parents to recalculate back
             * up the tree.
             */
            if (this.relativeParent.resolvedRelativeTargetAt !==
                frameData.timestamp) {
                this.relativeParent.resolveTargetDelta(true);
            }
        }
        resolveTargetDelta(forceRecalculation = false) {
            var _a;
            /**
             * Once the dirty status of nodes has been spread through the tree, we also
             * need to check if we have a shared node of a different depth that has itself
             * been dirtied.
             */
            const lead = this.getLead();
            this.isProjectionDirty || (this.isProjectionDirty = lead.isProjectionDirty);
            this.isTransformDirty || (this.isTransformDirty = lead.isTransformDirty);
            this.isSharedProjectionDirty || (this.isSharedProjectionDirty = lead.isSharedProjectionDirty);
            const isShared = Boolean(this.resumingFrom) || this !== lead;
            /**
             * We don't use transform for this step of processing so we don't
             * need to check whether any nodes have changed transform.
             */
            const canSkip = !(forceRecalculation ||
                (isShared && this.isSharedProjectionDirty) ||
                this.isProjectionDirty ||
                ((_a = this.parent) === null || _a === void 0 ? void 0 : _a.isProjectionDirty) ||
                this.attemptToResolveRelativeTarget ||
                this.root.updateBlockedByResize);
            if (canSkip)
                return;
            const { layout, layoutId } = this.options;
            /**
             * If we have no layout, we can't perform projection, so early return
             */
            if (!this.layout || !(layout || layoutId))
                return;
            this.resolvedRelativeTargetAt = frameData.timestamp;
            /**
             * If we don't have a targetDelta but do have a layout, we can attempt to resolve
             * a relativeParent. This will allow a component to perform scale correction
             * even if no animation has started.
             */
            if (!this.targetDelta && !this.relativeTarget) {
                const relativeParent = this.getClosestProjectingParent();
                if (relativeParent &&
                    relativeParent.layout &&
                    this.animationProgress !== 1) {
                    this.relativeParent = relativeParent;
                    this.forceRelativeParentToResolveTarget();
                    this.relativeTarget = createBox();
                    this.relativeTargetOrigin = createBox();
                    calcRelativePosition(this.relativeTargetOrigin, this.layout.layoutBox, relativeParent.layout.layoutBox);
                    copyBoxInto(this.relativeTarget, this.relativeTargetOrigin);
                }
                else {
                    this.relativeParent = this.relativeTarget = undefined;
                }
            }
            /**
             * If we have no relative target or no target delta our target isn't valid
             * for this frame.
             */
            if (!this.relativeTarget && !this.targetDelta)
                return;
            /**
             * Lazy-init target data structure
             */
            if (!this.target) {
                this.target = createBox();
                this.targetWithTransforms = createBox();
            }
            /**
             * If we've got a relative box for this component, resolve it into a target relative to the parent.
             */
            if (this.relativeTarget &&
                this.relativeTargetOrigin &&
                this.relativeParent &&
                this.relativeParent.target) {
                this.forceRelativeParentToResolveTarget();
                calcRelativeBox(this.target, this.relativeTarget, this.relativeParent.target);
                /**
                 * If we've only got a targetDelta, resolve it into a target
                 */
            }
            else if (this.targetDelta) {
                if (Boolean(this.resumingFrom)) {
                    // TODO: This is creating a new object every frame
                    this.target = this.applyTransform(this.layout.layoutBox);
                }
                else {
                    copyBoxInto(this.target, this.layout.layoutBox);
                }
                applyBoxDelta(this.target, this.targetDelta);
            }
            else {
                /**
                 * If no target, use own layout as target
                 */
                copyBoxInto(this.target, this.layout.layoutBox);
            }
            /**
             * If we've been told to attempt to resolve a relative target, do so.
             */
            if (this.attemptToResolveRelativeTarget) {
                this.attemptToResolveRelativeTarget = false;
                const relativeParent = this.getClosestProjectingParent();
                if (relativeParent &&
                    Boolean(relativeParent.resumingFrom) ===
                        Boolean(this.resumingFrom) &&
                    !relativeParent.options.layoutScroll &&
                    relativeParent.target &&
                    this.animationProgress !== 1) {
                    this.relativeParent = relativeParent;
                    this.forceRelativeParentToResolveTarget();
                    this.relativeTarget = createBox();
                    this.relativeTargetOrigin = createBox();
                    calcRelativePosition(this.relativeTargetOrigin, this.target, relativeParent.target);
                    copyBoxInto(this.relativeTarget, this.relativeTargetOrigin);
                }
                else {
                    this.relativeParent = this.relativeTarget = undefined;
                }
            }
            /**
             * Increase debug counter for resolved target deltas
             */
            if (isDebug) {
                metrics.resolvedTargetDeltas++;
            }
        }
        getClosestProjectingParent() {
            if (!this.parent ||
                hasScale(this.parent.latestValues) ||
                has2DTranslate(this.parent.latestValues)) {
                return undefined;
            }
            if (this.parent.isProjecting()) {
                return this.parent;
            }
            else {
                return this.parent.getClosestProjectingParent();
            }
        }
        isProjecting() {
            return Boolean((this.relativeTarget ||
                this.targetDelta ||
                this.options.layoutRoot) &&
                this.layout);
        }
        calcProjection() {
            var _a;
            const lead = this.getLead();
            const isShared = Boolean(this.resumingFrom) || this !== lead;
            let canSkip = true;
            /**
             * If this is a normal layout animation and neither this node nor its nearest projecting
             * is dirty then we can't skip.
             */
            if (this.isProjectionDirty || ((_a = this.parent) === null || _a === void 0 ? void 0 : _a.isProjectionDirty)) {
                canSkip = false;
            }
            /**
             * If this is a shared layout animation and this node's shared projection is dirty then
             * we can't skip.
             */
            if (isShared &&
                (this.isSharedProjectionDirty || this.isTransformDirty)) {
                canSkip = false;
            }
            /**
             * If we have resolved the target this frame we must recalculate the
             * projection to ensure it visually represents the internal calculations.
             */
            if (this.resolvedRelativeTargetAt === frameData.timestamp) {
                canSkip = false;
            }
            if (canSkip)
                return;
            const { layout, layoutId } = this.options;
            /**
             * If this section of the tree isn't animating we can
             * delete our target sources for the following frame.
             */
            this.isTreeAnimating = Boolean((this.parent && this.parent.isTreeAnimating) ||
                this.currentAnimation ||
                this.pendingAnimation);
            if (!this.isTreeAnimating) {
                this.targetDelta = this.relativeTarget = undefined;
            }
            if (!this.layout || !(layout || layoutId))
                return;
            /**
             * Reset the corrected box with the latest values from box, as we're then going
             * to perform mutative operations on it.
             */
            copyBoxInto(this.layoutCorrected, this.layout.layoutBox);
            /**
             * Record previous tree scales before updating.
             */
            const prevTreeScaleX = this.treeScale.x;
            const prevTreeScaleY = this.treeScale.y;
            /**
             * Apply all the parent deltas to this box to produce the corrected box. This
             * is the layout box, as it will appear on screen as a result of the transforms of its parents.
             */
            applyTreeDeltas(this.layoutCorrected, this.treeScale, this.path, isShared);
            /**
             * If this layer needs to perform scale correction but doesn't have a target,
             * use the layout as the target.
             */
            if (lead.layout &&
                !lead.target &&
                (this.treeScale.x !== 1 || this.treeScale.y !== 1)) {
                lead.target = lead.layout.layoutBox;
                lead.targetWithTransforms = createBox();
            }
            const { target } = lead;
            if (!target) {
                /**
                 * If we don't have a target to project into, but we were previously
                 * projecting, we want to remove the stored transform and schedule
                 * a render to ensure the elements reflect the removed transform.
                 */
                if (this.prevProjectionDelta) {
                    this.createProjectionDeltas();
                    this.scheduleRender();
                }
                return;
            }
            if (!this.projectionDelta || !this.prevProjectionDelta) {
                this.createProjectionDeltas();
            }
            else {
                copyAxisDeltaInto(this.prevProjectionDelta.x, this.projectionDelta.x);
                copyAxisDeltaInto(this.prevProjectionDelta.y, this.projectionDelta.y);
            }
            /**
             * Update the delta between the corrected box and the target box before user-set transforms were applied.
             * This will allow us to calculate the corrected borderRadius and boxShadow to compensate
             * for our layout reprojection, but still allow them to be scaled correctly by the user.
             * It might be that to simplify this we may want to accept that user-set scale is also corrected
             * and we wouldn't have to keep and calc both deltas, OR we could support a user setting
             * to allow people to choose whether these styles are corrected based on just the
             * layout reprojection or the final bounding box.
             */
            calcBoxDelta(this.projectionDelta, this.layoutCorrected, target, this.latestValues);
            if (this.treeScale.x !== prevTreeScaleX ||
                this.treeScale.y !== prevTreeScaleY ||
                !axisDeltaEquals(this.projectionDelta.x, this.prevProjectionDelta.x) ||
                !axisDeltaEquals(this.projectionDelta.y, this.prevProjectionDelta.y)) {
                this.hasProjected = true;
                this.scheduleRender();
                this.notifyListeners("projectionUpdate", target);
            }
            /**
             * Increase debug counter for recalculated projections
             */
            if (isDebug) {
                metrics.recalculatedProjection++;
            }
        }
        hide() {
            this.isVisible = false;
            // TODO: Schedule render
        }
        show() {
            this.isVisible = true;
            // TODO: Schedule render
        }
        scheduleRender(notifyAll = true) {
            var _a;
            (_a = this.options.visualElement) === null || _a === void 0 ? void 0 : _a.scheduleRender();
            if (notifyAll) {
                const stack = this.getStack();
                stack && stack.scheduleRender();
            }
            if (this.resumingFrom && !this.resumingFrom.instance) {
                this.resumingFrom = undefined;
            }
        }
        createProjectionDeltas() {
            this.prevProjectionDelta = createDelta();
            this.projectionDelta = createDelta();
            this.projectionDeltaWithTransform = createDelta();
        }
        setAnimationOrigin(delta, hasOnlyRelativeTargetChanged = false) {
            const snapshot = this.snapshot;
            const snapshotLatestValues = snapshot
                ? snapshot.latestValues
                : {};
            const mixedValues = { ...this.latestValues };
            const targetDelta = createDelta();
            if (!this.relativeParent ||
                !this.relativeParent.options.layoutRoot) {
                this.relativeTarget = this.relativeTargetOrigin = undefined;
            }
            this.attemptToResolveRelativeTarget = !hasOnlyRelativeTargetChanged;
            const relativeLayout = createBox();
            const snapshotSource = snapshot ? snapshot.source : undefined;
            const layoutSource = this.layout ? this.layout.source : undefined;
            const isSharedLayoutAnimation = snapshotSource !== layoutSource;
            const stack = this.getStack();
            const isOnlyMember = !stack || stack.members.length <= 1;
            const shouldCrossfadeOpacity = Boolean(isSharedLayoutAnimation &&
                !isOnlyMember &&
                this.options.crossfade === true &&
                !this.path.some(hasOpacityCrossfade));
            this.animationProgress = 0;
            let prevRelativeTarget;
            this.mixTargetDelta = (latest) => {
                const progress = latest / 1000;
                mixAxisDelta(targetDelta.x, delta.x, progress);
                mixAxisDelta(targetDelta.y, delta.y, progress);
                this.setTargetDelta(targetDelta);
                if (this.relativeTarget &&
                    this.relativeTargetOrigin &&
                    this.layout &&
                    this.relativeParent &&
                    this.relativeParent.layout) {
                    calcRelativePosition(relativeLayout, this.layout.layoutBox, this.relativeParent.layout.layoutBox);
                    mixBox(this.relativeTarget, this.relativeTargetOrigin, relativeLayout, progress);
                    /**
                     * If this is an unchanged relative target we can consider the
                     * projection not dirty.
                     */
                    if (prevRelativeTarget &&
                        boxEquals(this.relativeTarget, prevRelativeTarget)) {
                        this.isProjectionDirty = false;
                    }
                    if (!prevRelativeTarget)
                        prevRelativeTarget = createBox();
                    copyBoxInto(prevRelativeTarget, this.relativeTarget);
                }
                if (isSharedLayoutAnimation) {
                    this.animationValues = mixedValues;
                    mixValues(mixedValues, snapshotLatestValues, this.latestValues, progress, shouldCrossfadeOpacity, isOnlyMember);
                }
                this.root.scheduleUpdateProjection();
                this.scheduleRender();
                this.animationProgress = progress;
            };
            this.mixTargetDelta(this.options.layoutRoot ? 1000 : 0);
        }
        startAnimation(options) {
            this.notifyListeners("animationStart");
            this.currentAnimation && this.currentAnimation.stop();
            if (this.resumingFrom && this.resumingFrom.currentAnimation) {
                this.resumingFrom.currentAnimation.stop();
            }
            if (this.pendingAnimation) {
                cancelFrame(this.pendingAnimation);
                this.pendingAnimation = undefined;
            }
            /**
             * Start the animation in the next frame to have a frame with progress 0,
             * where the target is the same as when the animation started, so we can
             * calculate the relative positions correctly for instant transitions.
             */
            this.pendingAnimation = frame.update(() => {
                globalProjectionState.hasAnimatedSinceResize = true;
                this.currentAnimation = animateSingleValue(0, animationTarget, {
                    ...options,
                    onUpdate: (latest) => {
                        this.mixTargetDelta(latest);
                        options.onUpdate && options.onUpdate(latest);
                    },
                    onComplete: () => {
                        options.onComplete && options.onComplete();
                        this.completeAnimation();
                    },
                });
                if (this.resumingFrom) {
                    this.resumingFrom.currentAnimation = this.currentAnimation;
                }
                this.pendingAnimation = undefined;
            });
        }
        completeAnimation() {
            if (this.resumingFrom) {
                this.resumingFrom.currentAnimation = undefined;
                this.resumingFrom.preserveOpacity = undefined;
            }
            const stack = this.getStack();
            stack && stack.exitAnimationComplete();
            this.resumingFrom =
                this.currentAnimation =
                    this.animationValues =
                        undefined;
            this.notifyListeners("animationComplete");
        }
        finishAnimation() {
            if (this.currentAnimation) {
                this.mixTargetDelta && this.mixTargetDelta(animationTarget);
                this.currentAnimation.stop();
            }
            this.completeAnimation();
        }
        applyTransformsToTarget() {
            const lead = this.getLead();
            let { targetWithTransforms, target, layout, latestValues } = lead;
            if (!targetWithTransforms || !target || !layout)
                return;
            /**
             * If we're only animating position, and this element isn't the lead element,
             * then instead of projecting into the lead box we instead want to calculate
             * a new target that aligns the two boxes but maintains the layout shape.
             */
            if (this !== lead &&
                this.layout &&
                layout &&
                shouldAnimatePositionOnly(this.options.animationType, this.layout.layoutBox, layout.layoutBox)) {
                target = this.target || createBox();
                const xLength = calcLength(this.layout.layoutBox.x);
                target.x.min = lead.target.x.min;
                target.x.max = target.x.min + xLength;
                const yLength = calcLength(this.layout.layoutBox.y);
                target.y.min = lead.target.y.min;
                target.y.max = target.y.min + yLength;
            }
            copyBoxInto(targetWithTransforms, target);
            /**
             * Apply the latest user-set transforms to the targetBox to produce the targetBoxFinal.
             * This is the final box that we will then project into by calculating a transform delta and
             * applying it to the corrected box.
             */
            transformBox(targetWithTransforms, latestValues);
            /**
             * Update the delta between the corrected box and the final target box, after
             * user-set transforms are applied to it. This will be used by the renderer to
             * create a transform style that will reproject the element from its layout layout
             * into the desired bounding box.
             */
            calcBoxDelta(this.projectionDeltaWithTransform, this.layoutCorrected, targetWithTransforms, latestValues);
        }
        registerSharedNode(layoutId, node) {
            if (!this.sharedNodes.has(layoutId)) {
                this.sharedNodes.set(layoutId, new NodeStack());
            }
            const stack = this.sharedNodes.get(layoutId);
            stack.add(node);
            const config = node.options.initialPromotionConfig;
            node.promote({
                transition: config ? config.transition : undefined,
                preserveFollowOpacity: config && config.shouldPreserveFollowOpacity
                    ? config.shouldPreserveFollowOpacity(node)
                    : undefined,
            });
        }
        isLead() {
            const stack = this.getStack();
            return stack ? stack.lead === this : true;
        }
        getLead() {
            var _a;
            const { layoutId } = this.options;
            return layoutId ? ((_a = this.getStack()) === null || _a === void 0 ? void 0 : _a.lead) || this : this;
        }
        getPrevLead() {
            var _a;
            const { layoutId } = this.options;
            return layoutId ? (_a = this.getStack()) === null || _a === void 0 ? void 0 : _a.prevLead : undefined;
        }
        getStack() {
            const { layoutId } = this.options;
            if (layoutId)
                return this.root.sharedNodes.get(layoutId);
        }
        promote({ needsReset, transition, preserveFollowOpacity, } = {}) {
            const stack = this.getStack();
            if (stack)
                stack.promote(this, preserveFollowOpacity);
            if (needsReset) {
                this.projectionDelta = undefined;
                this.needsReset = true;
            }
            if (transition)
                this.setOptions({ transition });
        }
        relegate() {
            const stack = this.getStack();
            if (stack) {
                return stack.relegate(this);
            }
            else {
                return false;
            }
        }
        resetSkewAndRotation() {
            const { visualElement } = this.options;
            if (!visualElement)
                return;
            // If there's no detected skew or rotation values, we can early return without a forced render.
            let hasDistortingTransform = false;
            /**
             * An unrolled check for rotation values. Most elements don't have any rotation and
             * skipping the nested loop and new object creation is 50% faster.
             */
            const { latestValues } = visualElement;
            if (latestValues.z ||
                latestValues.rotate ||
                latestValues.rotateX ||
                latestValues.rotateY ||
                latestValues.rotateZ ||
                latestValues.skewX ||
                latestValues.skewY) {
                hasDistortingTransform = true;
            }
            // If there's no distorting values, we don't need to do any more.
            if (!hasDistortingTransform)
                return;
            const resetValues = {};
            if (latestValues.z) {
                resetDistortingTransform("z", visualElement, resetValues, this.animationValues);
            }
            // Check the skew and rotate value of all axes and reset to 0
            for (let i = 0; i < transformAxes.length; i++) {
                resetDistortingTransform(`rotate${transformAxes[i]}`, visualElement, resetValues, this.animationValues);
                resetDistortingTransform(`skew${transformAxes[i]}`, visualElement, resetValues, this.animationValues);
            }
            // Force a render of this element to apply the transform with all skews and rotations
            // set to 0.
            visualElement.render();
            // Put back all the values we reset
            for (const key in resetValues) {
                visualElement.setStaticValue(key, resetValues[key]);
                if (this.animationValues) {
                    this.animationValues[key] = resetValues[key];
                }
            }
            // Schedule a render for the next frame. This ensures we won't visually
            // see the element with the reset rotate value applied.
            visualElement.scheduleRender();
        }
        getProjectionStyles(styleProp) {
            var _a, _b;
            if (!this.instance || this.isSVG)
                return undefined;
            if (!this.isVisible) {
                return hiddenVisibility;
            }
            const styles = {
                visibility: "",
            };
            const transformTemplate = this.getTransformTemplate();
            if (this.needsReset) {
                this.needsReset = false;
                styles.opacity = "";
                styles.pointerEvents =
                    resolveMotionValue(styleProp === null || styleProp === void 0 ? void 0 : styleProp.pointerEvents) || "";
                styles.transform = transformTemplate
                    ? transformTemplate(this.latestValues, "")
                    : "none";
                return styles;
            }
            const lead = this.getLead();
            if (!this.projectionDelta || !this.layout || !lead.target) {
                const emptyStyles = {};
                if (this.options.layoutId) {
                    emptyStyles.opacity =
                        this.latestValues.opacity !== undefined
                            ? this.latestValues.opacity
                            : 1;
                    emptyStyles.pointerEvents =
                        resolveMotionValue(styleProp === null || styleProp === void 0 ? void 0 : styleProp.pointerEvents) || "";
                }
                if (this.hasProjected && !hasTransform(this.latestValues)) {
                    emptyStyles.transform = transformTemplate
                        ? transformTemplate({}, "")
                        : "none";
                    this.hasProjected = false;
                }
                return emptyStyles;
            }
            const valuesToRender = lead.animationValues || lead.latestValues;
            this.applyTransformsToTarget();
            styles.transform = buildProjectionTransform(this.projectionDeltaWithTransform, this.treeScale, valuesToRender);
            if (transformTemplate) {
                styles.transform = transformTemplate(valuesToRender, styles.transform);
            }
            const { x, y } = this.projectionDelta;
            styles.transformOrigin = `${x.origin * 100}% ${y.origin * 100}% 0`;
            if (lead.animationValues) {
                /**
                 * If the lead component is animating, assign this either the entering/leaving
                 * opacity
                 */
                styles.opacity =
                    lead === this
                        ? (_b = (_a = valuesToRender.opacity) !== null && _a !== void 0 ? _a : this.latestValues.opacity) !== null && _b !== void 0 ? _b : 1
                        : this.preserveOpacity
                            ? this.latestValues.opacity
                            : valuesToRender.opacityExit;
            }
            else {
                /**
                 * Or we're not animating at all, set the lead component to its layout
                 * opacity and other components to hidden.
                 */
                styles.opacity =
                    lead === this
                        ? valuesToRender.opacity !== undefined
                            ? valuesToRender.opacity
                            : ""
                        : valuesToRender.opacityExit !== undefined
                            ? valuesToRender.opacityExit
                            : 0;
            }
            /**
             * Apply scale correction
             */
            for (const key in scaleCorrectors) {
                if (valuesToRender[key] === undefined)
                    continue;
                const { correct, applyTo } = scaleCorrectors[key];
                /**
                 * Only apply scale correction to the value if we have an
                 * active projection transform. Otherwise these values become
                 * vulnerable to distortion if the element changes size without
                 * a corresponding layout animation.
                 */
                const corrected = styles.transform === "none"
                    ? valuesToRender[key]
                    : correct(valuesToRender[key], lead);
                if (applyTo) {
                    const num = applyTo.length;
                    for (let i = 0; i < num; i++) {
                        styles[applyTo[i]] = corrected;
                    }
                }
                else {
                    styles[key] = corrected;
                }
            }
            /**
             * Disable pointer events on follow components. This is to ensure
             * that if a follow component covers a lead component it doesn't block
             * pointer events on the lead.
             */
            if (this.options.layoutId) {
                styles.pointerEvents =
                    lead === this
                        ? resolveMotionValue(styleProp === null || styleProp === void 0 ? void 0 : styleProp.pointerEvents) || ""
                        : "none";
            }
            return styles;
        }
        clearSnapshot() {
            this.resumeFrom = this.snapshot = undefined;
        }
        // Only run on root
        resetTree() {
            this.root.nodes.forEach((node) => { var _a; return (_a = node.currentAnimation) === null || _a === void 0 ? void 0 : _a.stop(); });
            this.root.nodes.forEach(clearMeasurements);
            this.root.sharedNodes.clear();
        }
    };
}
function updateLayout(node) {
    node.updateLayout();
}
function notifyLayoutUpdate(node) {
    var _a;
    const snapshot = ((_a = node.resumeFrom) === null || _a === void 0 ? void 0 : _a.snapshot) || node.snapshot;
    if (node.isLead() &&
        node.layout &&
        snapshot &&
        node.hasListeners("didUpdate")) {
        const { layoutBox: layout, measuredBox: measuredLayout } = node.layout;
        const { animationType } = node.options;
        const isShared = snapshot.source !== node.layout.source;
        // TODO Maybe we want to also resize the layout snapshot so we don't trigger
        // animations for instance if layout="size" and an element has only changed position
        if (animationType === "size") {
            eachAxis((axis) => {
                const axisSnapshot = isShared
                    ? snapshot.measuredBox[axis]
                    : snapshot.layoutBox[axis];
                const length = calcLength(axisSnapshot);
                axisSnapshot.min = layout[axis].min;
                axisSnapshot.max = axisSnapshot.min + length;
            });
        }
        else if (shouldAnimatePositionOnly(animationType, snapshot.layoutBox, layout)) {
            eachAxis((axis) => {
                const axisSnapshot = isShared
                    ? snapshot.measuredBox[axis]
                    : snapshot.layoutBox[axis];
                const length = calcLength(layout[axis]);
                axisSnapshot.max = axisSnapshot.min + length;
                /**
                 * Ensure relative target gets resized and rerendererd
                 */
                if (node.relativeTarget && !node.currentAnimation) {
                    node.isProjectionDirty = true;
                    node.relativeTarget[axis].max =
                        node.relativeTarget[axis].min + length;
                }
            });
        }
        const layoutDelta = createDelta();
        calcBoxDelta(layoutDelta, layout, snapshot.layoutBox);
        const visualDelta = createDelta();
        if (isShared) {
            calcBoxDelta(visualDelta, node.applyTransform(measuredLayout, true), snapshot.measuredBox);
        }
        else {
            calcBoxDelta(visualDelta, layout, snapshot.layoutBox);
        }
        const hasLayoutChanged = !isDeltaZero(layoutDelta);
        let hasRelativeTargetChanged = false;
        if (!node.resumeFrom) {
            const relativeParent = node.getClosestProjectingParent();
            /**
             * If the relativeParent is itself resuming from a different element then
             * the relative snapshot is not relavent
             */
            if (relativeParent && !relativeParent.resumeFrom) {
                const { snapshot: parentSnapshot, layout: parentLayout } = relativeParent;
                if (parentSnapshot && parentLayout) {
                    const relativeSnapshot = createBox();
                    calcRelativePosition(relativeSnapshot, snapshot.layoutBox, parentSnapshot.layoutBox);
                    const relativeLayout = createBox();
                    calcRelativePosition(relativeLayout, layout, parentLayout.layoutBox);
                    if (!boxEqualsRounded(relativeSnapshot, relativeLayout)) {
                        hasRelativeTargetChanged = true;
                    }
                    if (relativeParent.options.layoutRoot) {
                        node.relativeTarget = relativeLayout;
                        node.relativeTargetOrigin = relativeSnapshot;
                        node.relativeParent = relativeParent;
                    }
                }
            }
        }
        node.notifyListeners("didUpdate", {
            layout,
            snapshot,
            delta: visualDelta,
            layoutDelta,
            hasLayoutChanged,
            hasRelativeTargetChanged,
        });
    }
    else if (node.isLead()) {
        const { onExitComplete } = node.options;
        onExitComplete && onExitComplete();
    }
    /**
     * Clearing transition
     * TODO: Investigate why this transition is being passed in as {type: false } from Framer
     * and why we need it at all
     */
    node.options.transition = undefined;
}
function propagateDirtyNodes(node) {
    /**
     * Increase debug counter for nodes encountered this frame
     */
    if (isDebug) {
        metrics.totalNodes++;
    }
    if (!node.parent)
        return;
    /**
     * If this node isn't projecting, propagate isProjectionDirty. It will have
     * no performance impact but it will allow the next child that *is* projecting
     * but *isn't* dirty to just check its parent to see if *any* ancestor needs
     * correcting.
     */
    if (!node.isProjecting()) {
        node.isProjectionDirty = node.parent.isProjectionDirty;
    }
    /**
     * Propagate isSharedProjectionDirty and isTransformDirty
     * throughout the whole tree. A future revision can take another look at
     * this but for safety we still recalcualte shared nodes.
     */
    node.isSharedProjectionDirty || (node.isSharedProjectionDirty = Boolean(node.isProjectionDirty ||
        node.parent.isProjectionDirty ||
        node.parent.isSharedProjectionDirty));
    node.isTransformDirty || (node.isTransformDirty = node.parent.isTransformDirty);
}
function cleanDirtyNodes(node) {
    node.isProjectionDirty =
        node.isSharedProjectionDirty =
            node.isTransformDirty =
                false;
}
function clearSnapshot(node) {
    node.clearSnapshot();
}
function clearMeasurements(node) {
    node.clearMeasurements();
}
function clearIsLayoutDirty(node) {
    node.isLayoutDirty = false;
}
function resetTransformStyle(node) {
    const { visualElement } = node.options;
    if (visualElement && visualElement.getProps().onBeforeLayoutMeasure) {
        visualElement.notify("BeforeLayoutMeasure");
    }
    node.resetTransform();
}
function finishAnimation(node) {
    node.finishAnimation();
    node.targetDelta = node.relativeTarget = node.target = undefined;
    node.isProjectionDirty = true;
}
function resolveTargetDelta(node) {
    node.resolveTargetDelta();
}
function calcProjection(node) {
    node.calcProjection();
}
function resetSkewAndRotation(node) {
    node.resetSkewAndRotation();
}
function removeLeadSnapshots(stack) {
    stack.removeLeadSnapshot();
}
function mixAxisDelta(output, delta, p) {
    output.translate = mixNumber$1(delta.translate, 0, p);
    output.scale = mixNumber$1(delta.scale, 1, p);
    output.origin = delta.origin;
    output.originPoint = delta.originPoint;
}
function mixAxis(output, from, to, p) {
    output.min = mixNumber$1(from.min, to.min, p);
    output.max = mixNumber$1(from.max, to.max, p);
}
function mixBox(output, from, to, p) {
    mixAxis(output.x, from.x, to.x, p);
    mixAxis(output.y, from.y, to.y, p);
}
function hasOpacityCrossfade(node) {
    return (node.animationValues && node.animationValues.opacityExit !== undefined);
}
const defaultLayoutTransition = {
    duration: 0.45,
    ease: [0.4, 0, 0.1, 1],
};
const userAgentContains = (string) => typeof navigator !== "undefined" &&
    navigator.userAgent &&
    navigator.userAgent.toLowerCase().includes(string);
/**
 * Measured bounding boxes must be rounded in Safari and
 * left untouched in Chrome, otherwise non-integer layouts within scaled-up elements
 * can appear to jump.
 */
const roundPoint = userAgentContains("applewebkit/") && !userAgentContains("chrome/")
    ? Math.round
    : motionUtils.noop;
function roundAxis(axis) {
    // Round to the nearest .5 pixels to support subpixel layouts
    axis.min = roundPoint(axis.min);
    axis.max = roundPoint(axis.max);
}
function roundBox(box) {
    roundAxis(box.x);
    roundAxis(box.y);
}
function shouldAnimatePositionOnly(animationType, snapshot, layout) {
    return (animationType === "position" ||
        (animationType === "preserve-aspect" &&
            !isNear(aspectRatio(snapshot), aspectRatio(layout), 0.2)));
}
function checkNodeWasScrollRoot(node) {
    var _a;
    return node !== node.root && ((_a = node.scroll) === null || _a === void 0 ? void 0 : _a.wasRoot);
}

const DocumentProjectionNode = createProjectionNode$1({
    attachResizeListener: (ref, notify) => addDomEvent(ref, "resize", notify),
    measureScroll: () => ({
        x: document.documentElement.scrollLeft || document.body.scrollLeft,
        y: document.documentElement.scrollTop || document.body.scrollTop,
    }),
    checkIsScrollRoot: () => true,
});

const rootProjectionNode = {
    current: undefined,
};
const HTMLProjectionNode = createProjectionNode$1({
    measureScroll: (instance) => ({
        x: instance.scrollLeft,
        y: instance.scrollTop,
    }),
    defaultParent: () => {
        if (!rootProjectionNode.current) {
            const documentNode = new DocumentProjectionNode({});
            documentNode.mount(window);
            documentNode.setOptions({ layoutScroll: true });
            rootProjectionNode.current = documentNode;
        }
        return rootProjectionNode.current;
    },
    resetTransform: (instance, value) => {
        instance.style.transform = value !== undefined ? value : "none";
    },
    checkIsScrollRoot: (instance) => Boolean(window.getComputedStyle(instance).position === "fixed"),
});

function pixelsToPercent(pixels, axis) {
    if (axis.max === axis.min)
        return 0;
    return (pixels / (axis.max - axis.min)) * 100;
}
/**
 * We always correct borderRadius as a percentage rather than pixels to reduce paints.
 * For example, if you are projecting a box that is 100px wide with a 10px borderRadius
 * into a box that is 200px wide with a 20px borderRadius, that is actually a 10%
 * borderRadius in both states. If we animate between the two in pixels that will trigger
 * a paint each time. If we animate between the two in percentage we'll avoid a paint.
 */
const correctBorderRadius = {
    correct: (latest, node) => {
        if (!node.target)
            return latest;
        /**
         * If latest is a string, if it's a percentage we can return immediately as it's
         * going to be stretched appropriately. Otherwise, if it's a pixel, convert it to a number.
         */
        if (typeof latest === "string") {
            if (px.test(latest)) {
                latest = parseFloat(latest);
            }
            else {
                return latest;
            }
        }
        /**
         * If latest is a number, it's a pixel value. We use the current viewportBox to calculate that
         * pixel value as a percentage of each axis
         */
        const x = pixelsToPercent(latest, node.target.x);
        const y = pixelsToPercent(latest, node.target.y);
        return `${x}% ${y}%`;
    },
};

const correctBoxShadow = {
    correct: (latest, { treeScale, projectionDelta }) => {
        const original = latest;
        const shadow = complex.parse(latest);
        // TODO: Doesn't support multiple shadows
        if (shadow.length > 5)
            return original;
        const template = complex.createTransformer(latest);
        const offset = typeof shadow[0] !== "number" ? 1 : 0;
        // Calculate the overall context scale
        const xScale = projectionDelta.x.scale * treeScale.x;
        const yScale = projectionDelta.y.scale * treeScale.y;
        shadow[0 + offset] /= xScale;
        shadow[1 + offset] /= yScale;
        /**
         * Ideally we'd correct x and y scales individually, but because blur and
         * spread apply to both we have to take a scale average and apply that instead.
         * We could potentially improve the outcome of this by incorporating the ratio between
         * the two scales.
         */
        const averageScale = mixNumber$1(xScale, yScale, 0.5);
        // Blur
        if (typeof shadow[2 + offset] === "number")
            shadow[2 + offset] /= averageScale;
        // Spread
        if (typeof shadow[3 + offset] === "number")
            shadow[3 + offset] /= averageScale;
        return template(shadow);
    },
};

/**
 * @public
 */
const PresenceContext = react.createContext(null);

/**
 * When a component is the child of `AnimatePresence`, it can use `usePresence`
 * to access information about whether it's still present in the React tree.
 *
 * ```jsx
 * import { usePresence } from "framer-motion"
 *
 * export const Component = () => {
 *   const [isPresent, safeToRemove] = usePresence()
 *
 *   useEffect(() => {
 *     !isPresent && setTimeout(safeToRemove, 1000)
 *   }, [isPresent])
 *
 *   return <div />
 * }
 * ```
 *
 * If `isPresent` is `false`, it means that a component has been removed the tree, but
 * `AnimatePresence` won't really remove it until `safeToRemove` has been called.
 *
 * @public
 */
function usePresence(subscribe = true) {
    const context = react.useContext(PresenceContext);
    if (context === null)
        return [true, null];
    const { isPresent, onExitComplete, register } = context;
    // It's safe to call the following hooks conditionally (after an early return) because the context will always
    // either be null or non-null for the lifespan of the component.
    const id = react.useId();
    react.useEffect(() => {
        if (subscribe)
            register(id);
    }, [subscribe]);
    const safeToRemove = react.useCallback(() => subscribe && onExitComplete && onExitComplete(id), [id, onExitComplete, subscribe]);
    return !isPresent && onExitComplete ? [false, safeToRemove] : [true];
}

const LayoutGroupContext = react.createContext({});

/**
 * Internal, exported only for usage in Framer
 */
const SwitchLayoutGroupContext = react.createContext({});

class MeasureLayoutWithContext extends react.Component {
    /**
     * This only mounts projection nodes for components that
     * need measuring, we might want to do it for all components
     * in order to incorporate transforms
     */
    componentDidMount() {
        const { visualElement, layoutGroup, switchLayoutGroup, layoutId } = this.props;
        const { projection } = visualElement;
        addScaleCorrector(defaultScaleCorrectors);
        if (projection) {
            if (layoutGroup.group)
                layoutGroup.group.add(projection);
            if (switchLayoutGroup && switchLayoutGroup.register && layoutId) {
                switchLayoutGroup.register(projection);
            }
            projection.root.didUpdate();
            projection.addEventListener("animationComplete", () => {
                this.safeToRemove();
            });
            projection.setOptions({
                ...projection.options,
                onExitComplete: () => this.safeToRemove(),
            });
        }
        globalProjectionState.hasEverUpdated = true;
    }
    getSnapshotBeforeUpdate(prevProps) {
        const { layoutDependency, visualElement, drag, isPresent } = this.props;
        const projection = visualElement.projection;
        if (!projection)
            return null;
        /**
         * TODO: We use this data in relegate to determine whether to
         * promote a previous element. There's no guarantee its presence data
         * will have updated by this point - if a bug like this arises it will
         * have to be that we markForRelegation and then find a new lead some other way,
         * perhaps in didUpdate
         */
        projection.isPresent = isPresent;
        if (drag ||
            prevProps.layoutDependency !== layoutDependency ||
            layoutDependency === undefined) {
            projection.willUpdate();
        }
        else {
            this.safeToRemove();
        }
        if (prevProps.isPresent !== isPresent) {
            if (isPresent) {
                projection.promote();
            }
            else if (!projection.relegate()) {
                /**
                 * If there's another stack member taking over from this one,
                 * it's in charge of the exit animation and therefore should
                 * be in charge of the safe to remove. Otherwise we call it here.
                 */
                frame.postRender(() => {
                    const stack = projection.getStack();
                    if (!stack || !stack.members.length) {
                        this.safeToRemove();
                    }
                });
            }
        }
        return null;
    }
    componentDidUpdate() {
        const { projection } = this.props.visualElement;
        if (projection) {
            projection.root.didUpdate();
            microtask.postRender(() => {
                if (!projection.currentAnimation && projection.isLead()) {
                    this.safeToRemove();
                }
            });
        }
    }
    componentWillUnmount() {
        const { visualElement, layoutGroup, switchLayoutGroup: promoteContext, } = this.props;
        const { projection } = visualElement;
        if (projection) {
            projection.scheduleCheckAfterUnmount();
            if (layoutGroup && layoutGroup.group)
                layoutGroup.group.remove(projection);
            if (promoteContext && promoteContext.deregister)
                promoteContext.deregister(projection);
        }
    }
    safeToRemove() {
        const { safeToRemove } = this.props;
        safeToRemove && safeToRemove();
    }
    render() {
        return null;
    }
}
function MeasureLayout(props) {
    const [isPresent, safeToRemove] = usePresence();
    const layoutGroup = react.useContext(LayoutGroupContext);
    return (jsxRuntime.jsx(MeasureLayoutWithContext, { ...props, layoutGroup: layoutGroup, switchLayoutGroup: react.useContext(SwitchLayoutGroupContext), isPresent: isPresent, safeToRemove: safeToRemove }));
}
const defaultScaleCorrectors = {
    borderRadius: {
        ...correctBorderRadius,
        applyTo: [
            "borderTopLeftRadius",
            "borderTopRightRadius",
            "borderBottomLeftRadius",
            "borderBottomRightRadius",
        ],
    },
    borderTopLeftRadius: correctBorderRadius,
    borderTopRightRadius: correctBorderRadius,
    borderBottomLeftRadius: correctBorderRadius,
    borderBottomRightRadius: correctBorderRadius,
    boxShadow: correctBoxShadow,
};

const drag = {
    pan: {
        Feature: PanGesture,
    },
    drag: {
        Feature: DragGesture,
        ProjectionNode: HTMLProjectionNode,
        MeasureLayout,
    },
};

function handleHoverEvent(node, event, lifecycle) {
    const { props } = node;
    if (node.animationState && props.whileHover) {
        node.animationState.setActive("whileHover", lifecycle === "Start");
    }
    const eventName = ("onHover" + lifecycle);
    const callback = props[eventName];
    if (callback) {
        frame.postRender(() => callback(event, extractEventInfo(event)));
    }
}
class HoverGesture extends Feature {
    mount() {
        const { current } = this.node;
        if (!current)
            return;
        this.unmount = motionDom.hover(current, (startEvent) => {
            handleHoverEvent(this.node, startEvent, "Start");
            return (endEvent) => handleHoverEvent(this.node, endEvent, "End");
        });
    }
    unmount() { }
}

class FocusGesture extends Feature {
    constructor() {
        super(...arguments);
        this.isActive = false;
    }
    onFocus() {
        let isFocusVisible = false;
        /**
         * If this element doesn't match focus-visible then don't
         * apply whileHover. But, if matches throws that focus-visible
         * is not a valid selector then in that browser outline styles will be applied
         * to the element by default and we want to match that behaviour with whileFocus.
         */
        try {
            isFocusVisible = this.node.current.matches(":focus-visible");
        }
        catch (e) {
            isFocusVisible = true;
        }
        if (!isFocusVisible || !this.node.animationState)
            return;
        this.node.animationState.setActive("whileFocus", true);
        this.isActive = true;
    }
    onBlur() {
        if (!this.isActive || !this.node.animationState)
            return;
        this.node.animationState.setActive("whileFocus", false);
        this.isActive = false;
    }
    mount() {
        this.unmount = pipe(addDomEvent(this.node.current, "focus", () => this.onFocus()), addDomEvent(this.node.current, "blur", () => this.onBlur()));
    }
    unmount() { }
}

function handlePressEvent(node, event, lifecycle) {
    const { props } = node;
    if (node.animationState && props.whileTap) {
        node.animationState.setActive("whileTap", lifecycle === "Start");
    }
    const eventName = ("onTap" + (lifecycle === "End" ? "" : lifecycle));
    const callback = props[eventName];
    if (callback) {
        frame.postRender(() => callback(event, extractEventInfo(event)));
    }
}
class PressGesture extends Feature {
    mount() {
        const { current } = this.node;
        if (!current)
            return;
        this.unmount = motionDom.press(current, (startEvent) => {
            handlePressEvent(this.node, startEvent, "Start");
            return (endEvent, { success }) => handlePressEvent(this.node, endEvent, success ? "End" : "Cancel");
        }, { useGlobalTarget: this.node.props.globalTapTarget });
    }
    unmount() { }
}

/**
 * Map an IntersectionHandler callback to an element. We only ever make one handler for one
 * element, so even though these handlers might all be triggered by different
 * observers, we can keep them in the same map.
 */
const observerCallbacks = new WeakMap();
/**
 * Multiple observers can be created for multiple element/document roots. Each with
 * different settings. So here we store dictionaries of observers to each root,
 * using serialised settings (threshold/margin) as lookup keys.
 */
const observers = new WeakMap();
const fireObserverCallback = (entry) => {
    const callback = observerCallbacks.get(entry.target);
    callback && callback(entry);
};
const fireAllObserverCallbacks = (entries) => {
    entries.forEach(fireObserverCallback);
};
function initIntersectionObserver({ root, ...options }) {
    const lookupRoot = root || document;
    /**
     * If we don't have an observer lookup map for this root, create one.
     */
    if (!observers.has(lookupRoot)) {
        observers.set(lookupRoot, {});
    }
    const rootObservers = observers.get(lookupRoot);
    const key = JSON.stringify(options);
    /**
     * If we don't have an observer for this combination of root and settings,
     * create one.
     */
    if (!rootObservers[key]) {
        rootObservers[key] = new IntersectionObserver(fireAllObserverCallbacks, { root, ...options });
    }
    return rootObservers[key];
}
function observeIntersection(element, options, callback) {
    const rootInteresectionObserver = initIntersectionObserver(options);
    observerCallbacks.set(element, callback);
    rootInteresectionObserver.observe(element);
    return () => {
        observerCallbacks.delete(element);
        rootInteresectionObserver.unobserve(element);
    };
}

const thresholdNames = {
    some: 0,
    all: 1,
};
class InViewFeature extends Feature {
    constructor() {
        super(...arguments);
        this.hasEnteredView = false;
        this.isInView = false;
    }
    startObserver() {
        this.unmount();
        const { viewport = {} } = this.node.getProps();
        const { root, margin: rootMargin, amount = "some", once } = viewport;
        const options = {
            root: root ? root.current : undefined,
            rootMargin,
            threshold: typeof amount === "number" ? amount : thresholdNames[amount],
        };
        const onIntersectionUpdate = (entry) => {
            const { isIntersecting } = entry;
            /**
             * If there's been no change in the viewport state, early return.
             */
            if (this.isInView === isIntersecting)
                return;
            this.isInView = isIntersecting;
            /**
             * Handle hasEnteredView. If this is only meant to run once, and
             * element isn't visible, early return. Otherwise set hasEnteredView to true.
             */
            if (once && !isIntersecting && this.hasEnteredView) {
                return;
            }
            else if (isIntersecting) {
                this.hasEnteredView = true;
            }
            if (this.node.animationState) {
                this.node.animationState.setActive("whileInView", isIntersecting);
            }
            /**
             * Use the latest committed props rather than the ones in scope
             * when this observer is created
             */
            const { onViewportEnter, onViewportLeave } = this.node.getProps();
            const callback = isIntersecting ? onViewportEnter : onViewportLeave;
            callback && callback(entry);
        };
        return observeIntersection(this.node.current, options, onIntersectionUpdate);
    }
    mount() {
        this.startObserver();
    }
    update() {
        if (typeof IntersectionObserver === "undefined")
            return;
        const { props, prevProps } = this.node;
        const hasOptionsChanged = ["amount", "margin", "root"].some(hasViewportOptionChanged(props, prevProps));
        if (hasOptionsChanged) {
            this.startObserver();
        }
    }
    unmount() { }
}
function hasViewportOptionChanged({ viewport = {} }, { viewport: prevViewport = {} } = {}) {
    return (name) => viewport[name] !== prevViewport[name];
}

const gestureAnimations = {
    inView: {
        Feature: InViewFeature,
    },
    tap: {
        Feature: PressGesture,
    },
    focus: {
        Feature: FocusGesture,
    },
    hover: {
        Feature: HoverGesture,
    },
};

const layout = {
    layout: {
        ProjectionNode: HTMLProjectionNode,
        MeasureLayout,
    },
};

const LazyContext = react.createContext({ strict: false });

/**
 * @public
 */
const MotionConfigContext = react.createContext({
    transformPagePoint: (p) => p,
    isStatic: false,
    reducedMotion: "never",
});

const MotionContext = react.createContext({});

function getCurrentTreeVariants(props, context) {
    if (isControllingVariants(props)) {
        const { initial, animate } = props;
        return {
            initial: initial === false || isVariantLabel(initial)
                ? initial
                : undefined,
            animate: isVariantLabel(animate) ? animate : undefined,
        };
    }
    return props.inherit !== false ? context : {};
}

function useCreateMotionContext(props) {
    const { initial, animate } = getCurrentTreeVariants(props, react.useContext(MotionContext));
    return react.useMemo(() => ({ initial, animate }), [variantLabelsAsDependency(initial), variantLabelsAsDependency(animate)]);
}
function variantLabelsAsDependency(prop) {
    return Array.isArray(prop) ? prop.join(" ") : prop;
}

function loadFeatures(features) {
    for (const key in features) {
        featureDefinitions[key] = {
            ...featureDefinitions[key],
            ...features[key],
        };
    }
}

const motionComponentSymbol = Symbol.for("motionComponentSymbol");

/**
 * Creates a ref function that, when called, hydrates the provided
 * external ref and VisualElement.
 */
function useMotionRef(visualState, visualElement, externalRef) {
    return react.useCallback((instance) => {
        if (instance) {
            visualState.onMount && visualState.onMount(instance);
        }
        if (visualElement) {
            if (instance) {
                visualElement.mount(instance);
            }
            else {
                visualElement.unmount();
            }
        }
        if (externalRef) {
            if (typeof externalRef === "function") {
                externalRef(instance);
            }
            else if (isRefObject(externalRef)) {
                externalRef.current = instance;
            }
        }
    }, 
    /**
     * Only pass a new ref callback to React if we've received a visual element
     * factory. Otherwise we'll be mounting/remounting every time externalRef
     * or other dependencies change.
     */
    [visualElement]);
}

const useIsomorphicLayoutEffect = isBrowser ? react.useLayoutEffect : react.useEffect;

function useVisualElement(Component, visualState, props, createVisualElement, ProjectionNodeConstructor) {
    var _a, _b;
    const { visualElement: parent } = react.useContext(MotionContext);
    const lazyContext = react.useContext(LazyContext);
    const presenceContext = react.useContext(PresenceContext);
    const reducedMotionConfig = react.useContext(MotionConfigContext).reducedMotion;
    const visualElementRef = react.useRef(null);
    /**
     * If we haven't preloaded a renderer, check to see if we have one lazy-loaded
     */
    createVisualElement = createVisualElement || lazyContext.renderer;
    if (!visualElementRef.current && createVisualElement) {
        visualElementRef.current = createVisualElement(Component, {
            visualState,
            parent,
            props,
            presenceContext,
            blockInitialAnimation: presenceContext
                ? presenceContext.initial === false
                : false,
            reducedMotionConfig,
        });
    }
    const visualElement = visualElementRef.current;
    /**
     * Load Motion gesture and animation features. These are rendered as renderless
     * components so each feature can optionally make use of React lifecycle methods.
     */
    const initialLayoutGroupConfig = react.useContext(SwitchLayoutGroupContext);
    if (visualElement &&
        !visualElement.projection &&
        ProjectionNodeConstructor &&
        (visualElement.type === "html" || visualElement.type === "svg")) {
        createProjectionNode(visualElementRef.current, props, ProjectionNodeConstructor, initialLayoutGroupConfig);
    }
    const isMounted = react.useRef(false);
    react.useInsertionEffect(() => {
        /**
         * Check the component has already mounted before calling
         * `update` unnecessarily. This ensures we skip the initial update.
         */
        if (visualElement && isMounted.current) {
            visualElement.update(props, presenceContext);
        }
    });
    /**
     * Cache this value as we want to know whether HandoffAppearAnimations
     * was present on initial render - it will be deleted after this.
     */
    const optimisedAppearId = props[optimizedAppearDataAttribute];
    const wantsHandoff = react.useRef(Boolean(optimisedAppearId) &&
        !((_a = window.MotionHandoffIsComplete) === null || _a === void 0 ? void 0 : _a.call(window, optimisedAppearId)) &&
        ((_b = window.MotionHasOptimisedAnimation) === null || _b === void 0 ? void 0 : _b.call(window, optimisedAppearId)));
    useIsomorphicLayoutEffect(() => {
        if (!visualElement)
            return;
        isMounted.current = true;
        window.MotionIsMounted = true;
        visualElement.updateFeatures();
        microtask.render(visualElement.render);
        /**
         * Ideally this function would always run in a useEffect.
         *
         * However, if we have optimised appear animations to handoff from,
         * it needs to happen synchronously to ensure there's no flash of
         * incorrect styles in the event of a hydration error.
         *
         * So if we detect a situtation where optimised appear animations
         * are running, we use useLayoutEffect to trigger animations.
         */
        if (wantsHandoff.current && visualElement.animationState) {
            visualElement.animationState.animateChanges();
        }
    });
    react.useEffect(() => {
        if (!visualElement)
            return;
        if (!wantsHandoff.current && visualElement.animationState) {
            visualElement.animationState.animateChanges();
        }
        if (wantsHandoff.current) {
            // This ensures all future calls to animateChanges() in this component will run in useEffect
            queueMicrotask(() => {
                var _a;
                (_a = window.MotionHandoffMarkAsComplete) === null || _a === void 0 ? void 0 : _a.call(window, optimisedAppearId);
            });
            wantsHandoff.current = false;
        }
    });
    return visualElement;
}
function createProjectionNode(visualElement, props, ProjectionNodeConstructor, initialPromotionConfig) {
    const { layoutId, layout, drag, dragConstraints, layoutScroll, layoutRoot, } = props;
    visualElement.projection = new ProjectionNodeConstructor(visualElement.latestValues, props["data-framer-portal-id"]
        ? undefined
        : getClosestProjectingNode(visualElement.parent));
    visualElement.projection.setOptions({
        layoutId,
        layout,
        alwaysMeasureLayout: Boolean(drag) || (dragConstraints && isRefObject(dragConstraints)),
        visualElement,
        /**
         * TODO: Update options in an effect. This could be tricky as it'll be too late
         * to update by the time layout animations run.
         * We also need to fix this safeToRemove by linking it up to the one returned by usePresence,
         * ensuring it gets called if there's no potential layout animations.
         *
         */
        animationType: typeof layout === "string" ? layout : "both",
        initialPromotionConfig,
        layoutScroll,
        layoutRoot,
    });
}
function getClosestProjectingNode(visualElement) {
    if (!visualElement)
        return undefined;
    return visualElement.options.allowProjection !== false
        ? visualElement.projection
        : getClosestProjectingNode(visualElement.parent);
}

/**
 * Create a `motion` component.
 *
 * This function accepts a Component argument, which can be either a string (ie "div"
 * for `motion.div`), or an actual React component.
 *
 * Alongside this is a config option which provides a way of rendering the provided
 * component "offline", or outside the React render cycle.
 */
function createRendererMotionComponent({ preloadedFeatures, createVisualElement, useRender, useVisualState, Component, }) {
    var _a, _b;
    preloadedFeatures && loadFeatures(preloadedFeatures);
    function MotionComponent(props, externalRef) {
        /**
         * If we need to measure the element we load this functionality in a
         * separate class component in order to gain access to getSnapshotBeforeUpdate.
         */
        let MeasureLayout;
        const configAndProps = {
            ...react.useContext(MotionConfigContext),
            ...props,
            layoutId: useLayoutId(props),
        };
        const { isStatic } = configAndProps;
        const context = useCreateMotionContext(props);
        const visualState = useVisualState(props, isStatic);
        if (!isStatic && isBrowser) {
            useStrictMode(configAndProps, preloadedFeatures);
            const layoutProjection = getProjectionFunctionality(configAndProps);
            MeasureLayout = layoutProjection.MeasureLayout;
            /**
             * Create a VisualElement for this component. A VisualElement provides a common
             * interface to renderer-specific APIs (ie DOM/Three.js etc) as well as
             * providing a way of rendering to these APIs outside of the React render loop
             * for more performant animations and interactions
             */
            context.visualElement = useVisualElement(Component, visualState, configAndProps, createVisualElement, layoutProjection.ProjectionNode);
        }
        /**
         * The mount order and hierarchy is specific to ensure our element ref
         * is hydrated by the time features fire their effects.
         */
        return (jsxRuntime.jsxs(MotionContext.Provider, { value: context, children: [MeasureLayout && context.visualElement ? (jsxRuntime.jsx(MeasureLayout, { visualElement: context.visualElement, ...configAndProps })) : null, useRender(Component, props, useMotionRef(visualState, context.visualElement, externalRef), visualState, isStatic, context.visualElement)] }));
    }
    MotionComponent.displayName = `motion.${typeof Component === "string"
        ? Component
        : `create(${(_b = (_a = Component.displayName) !== null && _a !== void 0 ? _a : Component.name) !== null && _b !== void 0 ? _b : ""})`}`;
    const ForwardRefMotionComponent = react.forwardRef(MotionComponent);
    ForwardRefMotionComponent[motionComponentSymbol] = Component;
    return ForwardRefMotionComponent;
}
function useLayoutId({ layoutId }) {
    const layoutGroupId = react.useContext(LayoutGroupContext).id;
    return layoutGroupId && layoutId !== undefined
        ? layoutGroupId + "-" + layoutId
        : layoutId;
}
function useStrictMode(configAndProps, preloadedFeatures) {
    const isStrict = react.useContext(LazyContext).strict;
    /**
     * If we're in development mode, check to make sure we're not rendering a motion component
     * as a child of LazyMotion, as this will break the file-size benefits of using it.
     */
    if (process.env.NODE_ENV !== "production" &&
        preloadedFeatures &&
        isStrict) {
        const strictMessage = "You have rendered a `motion` component within a `LazyMotion` component. This will break tree shaking. Import and render a `m` component instead.";
        configAndProps.ignoreStrict
            ? motionUtils.warning(false, strictMessage)
            : motionUtils.invariant(false, strictMessage);
    }
}
function getProjectionFunctionality(props) {
    const { drag, layout } = featureDefinitions;
    if (!drag && !layout)
        return {};
    const combined = { ...drag, ...layout };
    return {
        MeasureLayout: (drag === null || drag === void 0 ? void 0 : drag.isEnabled(props)) || (layout === null || layout === void 0 ? void 0 : layout.isEnabled(props))
            ? combined.MeasureLayout
            : undefined,
        ProjectionNode: combined.ProjectionNode,
    };
}

/**
 * We keep these listed separately as we use the lowercase tag names as part
 * of the runtime bundle to detect SVG components
 */
const lowercaseSVGElements = [
    "animate",
    "circle",
    "defs",
    "desc",
    "ellipse",
    "g",
    "image",
    "line",
    "filter",
    "marker",
    "mask",
    "metadata",
    "path",
    "pattern",
    "polygon",
    "polyline",
    "rect",
    "stop",
    "switch",
    "symbol",
    "svg",
    "text",
    "tspan",
    "use",
    "view",
];

function isSVGComponent(Component) {
    if (
    /**
     * If it's not a string, it's a custom React component. Currently we only support
     * HTML custom React components.
     */
    typeof Component !== "string" ||
        /**
         * If it contains a dash, the element is a custom HTML webcomponent.
         */
        Component.includes("-")) {
        return false;
    }
    else if (
    /**
     * If it's in our list of lowercase SVG tags, it's an SVG component
     */
    lowercaseSVGElements.indexOf(Component) > -1 ||
        /**
         * If it contains a capital letter, it's an SVG component
         */
        /[A-Z]/u.test(Component)) {
        return true;
    }
    return false;
}

/**
 * Creates a constant value over the lifecycle of a component.
 *
 * Even if `useMemo` is provided an empty array as its final argument, it doesn't offer
 * a guarantee that it won't re-run for performance reasons later on. By using `useConstant`
 * you can ensure that initialisers don't execute twice or more.
 */
function useConstant(init) {
    const ref = react.useRef(null);
    if (ref.current === null) {
        ref.current = init();
    }
    return ref.current;
}

function makeState({ scrapeMotionValuesFromProps, createRenderState, onUpdate, }, props, context, presenceContext) {
    const state = {
        latestValues: makeLatestValues(props, context, presenceContext, scrapeMotionValuesFromProps),
        renderState: createRenderState(),
    };
    if (onUpdate) {
        /**
         * onMount works without the VisualElement because it could be
         * called before the VisualElement payload has been hydrated.
         * (e.g. if someone is using m components <m.circle />)
         */
        state.onMount = (instance) => onUpdate({ props, current: instance, ...state });
        state.onUpdate = (visualElement) => onUpdate(visualElement);
    }
    return state;
}
const makeUseVisualState = (config) => (props, isStatic) => {
    const context = react.useContext(MotionContext);
    const presenceContext = react.useContext(PresenceContext);
    const make = () => makeState(config, props, context, presenceContext);
    return isStatic ? make() : useConstant(make);
};
function makeLatestValues(props, context, presenceContext, scrapeMotionValues) {
    const values = {};
    const motionValues = scrapeMotionValues(props, {});
    for (const key in motionValues) {
        values[key] = resolveMotionValue(motionValues[key]);
    }
    let { initial, animate } = props;
    const isControllingVariants$1 = isControllingVariants(props);
    const isVariantNode$1 = isVariantNode(props);
    if (context &&
        isVariantNode$1 &&
        !isControllingVariants$1 &&
        props.inherit !== false) {
        if (initial === undefined)
            initial = context.initial;
        if (animate === undefined)
            animate = context.animate;
    }
    let isInitialAnimationBlocked = presenceContext
        ? presenceContext.initial === false
        : false;
    isInitialAnimationBlocked = isInitialAnimationBlocked || initial === false;
    const variantToSet = isInitialAnimationBlocked ? animate : initial;
    if (variantToSet &&
        typeof variantToSet !== "boolean" &&
        !isAnimationControls(variantToSet)) {
        const list = Array.isArray(variantToSet) ? variantToSet : [variantToSet];
        for (let i = 0; i < list.length; i++) {
            const resolved = resolveVariantFromProps(props, list[i]);
            if (resolved) {
                const { transitionEnd, transition, ...target } = resolved;
                for (const key in target) {
                    let valueTarget = target[key];
                    if (Array.isArray(valueTarget)) {
                        /**
                         * Take final keyframe if the initial animation is blocked because
                         * we want to initialise at the end of that blocked animation.
                         */
                        const index = isInitialAnimationBlocked
                            ? valueTarget.length - 1
                            : 0;
                        valueTarget = valueTarget[index];
                    }
                    if (valueTarget !== null) {
                        values[key] = valueTarget;
                    }
                }
                for (const key in transitionEnd) {
                    values[key] = transitionEnd[key];
                }
            }
        }
    }
    return values;
}

const createHtmlRenderState = () => ({
    style: {},
    transform: {},
    transformOrigin: {},
    vars: {},
});

const createSvgRenderState = () => ({
    ...createHtmlRenderState(),
    attrs: {},
});

function updateSVGDimensions(instance, renderState) {
    try {
        renderState.dimensions =
            typeof instance.getBBox === "function"
                ? instance.getBBox()
                : instance.getBoundingClientRect();
    }
    catch (e) {
        // Most likely trying to measure an unrendered element under Firefox
        renderState.dimensions = {
            x: 0,
            y: 0,
            width: 0,
            height: 0,
        };
    }
}
const layoutProps = ["x", "y", "width", "height", "cx", "cy", "r"];
const svgMotionConfig = {
    useVisualState: makeUseVisualState({
        scrapeMotionValuesFromProps: scrapeMotionValuesFromProps,
        createRenderState: createSvgRenderState,
        onUpdate: ({ props, prevProps, current, renderState, latestValues, }) => {
            if (!current)
                return;
            let hasTransform = !!props.drag;
            if (!hasTransform) {
                for (const key in latestValues) {
                    if (transformProps.has(key)) {
                        hasTransform = true;
                        break;
                    }
                }
            }
            if (!hasTransform)
                return;
            let needsMeasure = !prevProps;
            if (prevProps) {
                /**
                 * Check the layout props for changes, if any are found we need to
                 * measure the element again.
                 */
                for (let i = 0; i < layoutProps.length; i++) {
                    const key = layoutProps[i];
                    if (props[key] !==
                        prevProps[key]) {
                        needsMeasure = true;
                    }
                }
            }
            if (!needsMeasure)
                return;
            frame.read(() => {
                updateSVGDimensions(current, renderState);
                frame.render(() => {
                    buildSVGAttrs(renderState, latestValues, isSVGTag(current.tagName), props.transformTemplate);
                    renderSVG(current, renderState);
                });
            });
        },
    }),
};

const htmlMotionConfig = {
    useVisualState: makeUseVisualState({
        scrapeMotionValuesFromProps: scrapeMotionValuesFromProps$1,
        createRenderState: createHtmlRenderState,
    }),
};

function copyRawValuesOnly(target, source, props) {
    for (const key in source) {
        if (!isMotionValue(source[key]) && !isForcedMotionValue(key, props)) {
            target[key] = source[key];
        }
    }
}
function useInitialMotionValues({ transformTemplate }, visualState) {
    return react.useMemo(() => {
        const state = createHtmlRenderState();
        buildHTMLStyles(state, visualState, transformTemplate);
        return Object.assign({}, state.vars, state.style);
    }, [visualState]);
}
function useStyle(props, visualState) {
    const styleProp = props.style || {};
    const style = {};
    /**
     * Copy non-Motion Values straight into style
     */
    copyRawValuesOnly(style, styleProp, props);
    Object.assign(style, useInitialMotionValues(props, visualState));
    return style;
}
function useHTMLProps(props, visualState) {
    // The `any` isn't ideal but it is the type of createElement props argument
    const htmlProps = {};
    const style = useStyle(props, visualState);
    if (props.drag && props.dragListener !== false) {
        // Disable the ghost element when a user drags
        htmlProps.draggable = false;
        // Disable text selection
        style.userSelect =
            style.WebkitUserSelect =
                style.WebkitTouchCallout =
                    "none";
        // Disable scrolling on the draggable direction
        style.touchAction =
            props.drag === true
                ? "none"
                : `pan-${props.drag === "x" ? "y" : "x"}`;
    }
    if (props.tabIndex === undefined &&
        (props.onTap || props.onTapStart || props.whileTap)) {
        htmlProps.tabIndex = 0;
    }
    htmlProps.style = style;
    return htmlProps;
}

/**
 * A list of all valid MotionProps.
 *
 * @privateRemarks
 * This doesn't throw if a `MotionProp` name is missing - it should.
 */
const validMotionProps = new Set([
    "animate",
    "exit",
    "variants",
    "initial",
    "style",
    "values",
    "variants",
    "transition",
    "transformTemplate",
    "custom",
    "inherit",
    "onBeforeLayoutMeasure",
    "onAnimationStart",
    "onAnimationComplete",
    "onUpdate",
    "onDragStart",
    "onDrag",
    "onDragEnd",
    "onMeasureDragConstraints",
    "onDirectionLock",
    "onDragTransitionEnd",
    "_dragX",
    "_dragY",
    "onHoverStart",
    "onHoverEnd",
    "onViewportEnter",
    "onViewportLeave",
    "globalTapTarget",
    "ignoreStrict",
    "viewport",
]);
/**
 * Check whether a prop name is a valid `MotionProp` key.
 *
 * @param key - Name of the property to check
 * @returns `true` is key is a valid `MotionProp`.
 *
 * @public
 */
function isValidMotionProp(key) {
    return (key.startsWith("while") ||
        (key.startsWith("drag") && key !== "draggable") ||
        key.startsWith("layout") ||
        key.startsWith("onTap") ||
        key.startsWith("onPan") ||
        key.startsWith("onLayout") ||
        validMotionProps.has(key));
}

let shouldForward = (key) => !isValidMotionProp(key);
function loadExternalIsValidProp(isValidProp) {
    if (!isValidProp)
        return;
    // Explicitly filter our events
    shouldForward = (key) => key.startsWith("on") ? !isValidMotionProp(key) : isValidProp(key);
}
/**
 * Emotion and Styled Components both allow users to pass through arbitrary props to their components
 * to dynamically generate CSS. They both use the `@emotion/is-prop-valid` package to determine which
 * of these should be passed to the underlying DOM node.
 *
 * However, when styling a Motion component `styled(motion.div)`, both packages pass through *all* props
 * as it's seen as an arbitrary component rather than a DOM node. Motion only allows arbitrary props
 * passed through the `custom` prop so it doesn't *need* the payload or computational overhead of
 * `@emotion/is-prop-valid`, however to fix this problem we need to use it.
 *
 * By making it an optionalDependency we can offer this functionality only in the situations where it's
 * actually required.
 */
try {
    /**
     * We attempt to import this package but require won't be defined in esm environments, in that case
     * isPropValid will have to be provided via `MotionContext`. In a 6.0.0 this should probably be removed
     * in favour of explicit injection.
     */
    loadExternalIsValidProp(require("@emotion/is-prop-valid").default);
}
catch (_a) {
    // We don't need to actually do anything here - the fallback is the existing `isPropValid`.
}
function filterProps(props, isDom, forwardMotionProps) {
    const filteredProps = {};
    for (const key in props) {
        /**
         * values is considered a valid prop by Emotion, so if it's present
         * this will be rendered out to the DOM unless explicitly filtered.
         *
         * We check the type as it could be used with the `feColorMatrix`
         * element, which we support.
         */
        if (key === "values" && typeof props.values === "object")
            continue;
        if (shouldForward(key) ||
            (forwardMotionProps === true && isValidMotionProp(key)) ||
            (!isDom && !isValidMotionProp(key)) ||
            // If trying to use native HTML drag events, forward drag listeners
            (props["draggable"] &&
                key.startsWith("onDrag"))) {
            filteredProps[key] =
                props[key];
        }
    }
    return filteredProps;
}

function useSVGProps(props, visualState, _isStatic, Component) {
    const visualProps = react.useMemo(() => {
        const state = createSvgRenderState();
        buildSVGAttrs(state, visualState, isSVGTag(Component), props.transformTemplate);
        return {
            ...state.attrs,
            style: { ...state.style },
        };
    }, [visualState]);
    if (props.style) {
        const rawStyles = {};
        copyRawValuesOnly(rawStyles, props.style, props);
        visualProps.style = { ...rawStyles, ...visualProps.style };
    }
    return visualProps;
}

function createUseRender(forwardMotionProps = false) {
    const useRender = (Component, props, ref, { latestValues }, isStatic) => {
        const useVisualProps = isSVGComponent(Component)
            ? useSVGProps
            : useHTMLProps;
        const visualProps = useVisualProps(props, latestValues, isStatic, Component);
        const filteredProps = filterProps(props, typeof Component === "string", forwardMotionProps);
        const elementProps = Component !== react.Fragment
            ? { ...filteredProps, ...visualProps, ref }
            : {};
        /**
         * If component has been handed a motion value as its child,
         * memoise its initial value and render that. Subsequent updates
         * will be handled by the onChange handler
         */
        const { children } = props;
        const renderedChildren = react.useMemo(() => (isMotionValue(children) ? children.get() : children), [children]);
        return react.createElement(Component, {
            ...elementProps,
            children: renderedChildren,
        });
    };
    return useRender;
}

function createMotionComponentFactory(preloadedFeatures, createVisualElement) {
    return function createMotionComponent(Component, { forwardMotionProps } = { forwardMotionProps: false }) {
        const baseConfig = isSVGComponent(Component)
            ? svgMotionConfig
            : htmlMotionConfig;
        const config = {
            ...baseConfig,
            preloadedFeatures,
            useRender: createUseRender(forwardMotionProps),
            createVisualElement,
            Component,
        };
        return createRendererMotionComponent(config);
    };
}

const createDomVisualElement = (Component, options) => {
    return isSVGComponent(Component)
        ? new SVGVisualElement(options)
        : new HTMLVisualElement(options, {
            allowProjection: Component !== react.Fragment,
        });
};

const createMotionComponent = /*@__PURE__*/ createMotionComponentFactory({
    ...animations,
    ...gestureAnimations,
    ...drag,
    ...layout,
}, createDomVisualElement);

/**
 * HTML components
 */
const MotionA = /*@__PURE__*/ createMotionComponent("a");
const MotionAbbr = /*@__PURE__*/ createMotionComponent("abbr");
const MotionAddress = /*@__PURE__*/ createMotionComponent("address");
const MotionArea = /*@__PURE__*/ createMotionComponent("area");
const MotionArticle = /*@__PURE__*/ createMotionComponent("article");
const MotionAside = /*@__PURE__*/ createMotionComponent("aside");
const MotionAudio = /*@__PURE__*/ createMotionComponent("audio");
const MotionB = /*@__PURE__*/ createMotionComponent("b");
const MotionBase = /*@__PURE__*/ createMotionComponent("base");
const MotionBdi = /*@__PURE__*/ createMotionComponent("bdi");
const MotionBdo = /*@__PURE__*/ createMotionComponent("bdo");
const MotionBig = /*@__PURE__*/ createMotionComponent("big");
const MotionBlockquote = 
/*@__PURE__*/ createMotionComponent("blockquote");
const MotionBody = /*@__PURE__*/ createMotionComponent("body");
const MotionButton = /*@__PURE__*/ createMotionComponent("button");
const MotionCanvas = /*@__PURE__*/ createMotionComponent("canvas");
const MotionCaption = /*@__PURE__*/ createMotionComponent("caption");
const MotionCite = /*@__PURE__*/ createMotionComponent("cite");
const MotionCode = /*@__PURE__*/ createMotionComponent("code");
const MotionCol = /*@__PURE__*/ createMotionComponent("col");
const MotionColgroup = /*@__PURE__*/ createMotionComponent("colgroup");
const MotionData = /*@__PURE__*/ createMotionComponent("data");
const MotionDatalist = /*@__PURE__*/ createMotionComponent("datalist");
const MotionDd = /*@__PURE__*/ createMotionComponent("dd");
const MotionDel = /*@__PURE__*/ createMotionComponent("del");
const MotionDetails = /*@__PURE__*/ createMotionComponent("details");
const MotionDfn = /*@__PURE__*/ createMotionComponent("dfn");
const MotionDialog = /*@__PURE__*/ createMotionComponent("dialog");
const MotionDiv = /*@__PURE__*/ createMotionComponent("div");
const MotionDl = /*@__PURE__*/ createMotionComponent("dl");
const MotionDt = /*@__PURE__*/ createMotionComponent("dt");
const MotionEm = /*@__PURE__*/ createMotionComponent("em");
const MotionEmbed = /*@__PURE__*/ createMotionComponent("embed");
const MotionFieldset = /*@__PURE__*/ createMotionComponent("fieldset");
const MotionFigcaption = 
/*@__PURE__*/ createMotionComponent("figcaption");
const MotionFigure = /*@__PURE__*/ createMotionComponent("figure");
const MotionFooter = /*@__PURE__*/ createMotionComponent("footer");
const MotionForm = /*@__PURE__*/ createMotionComponent("form");
const MotionH1 = /*@__PURE__*/ createMotionComponent("h1");
const MotionH2 = /*@__PURE__*/ createMotionComponent("h2");
const MotionH3 = /*@__PURE__*/ createMotionComponent("h3");
const MotionH4 = /*@__PURE__*/ createMotionComponent("h4");
const MotionH5 = /*@__PURE__*/ createMotionComponent("h5");
const MotionH6 = /*@__PURE__*/ createMotionComponent("h6");
const MotionHead = /*@__PURE__*/ createMotionComponent("head");
const MotionHeader = /*@__PURE__*/ createMotionComponent("header");
const MotionHgroup = /*@__PURE__*/ createMotionComponent("hgroup");
const MotionHr = /*@__PURE__*/ createMotionComponent("hr");
const MotionHtml = /*@__PURE__*/ createMotionComponent("html");
const MotionI = /*@__PURE__*/ createMotionComponent("i");
const MotionIframe = /*@__PURE__*/ createMotionComponent("iframe");
const MotionImg = /*@__PURE__*/ createMotionComponent("img");
const MotionInput = /*@__PURE__*/ createMotionComponent("input");
const MotionIns = /*@__PURE__*/ createMotionComponent("ins");
const MotionKbd = /*@__PURE__*/ createMotionComponent("kbd");
const MotionKeygen = /*@__PURE__*/ createMotionComponent("keygen");
const MotionLabel = /*@__PURE__*/ createMotionComponent("label");
const MotionLegend = /*@__PURE__*/ createMotionComponent("legend");
const MotionLi = /*@__PURE__*/ createMotionComponent("li");
const MotionLink = /*@__PURE__*/ createMotionComponent("link");
const MotionMain = /*@__PURE__*/ createMotionComponent("main");
const MotionMap = /*@__PURE__*/ createMotionComponent("map");
const MotionMark = /*@__PURE__*/ createMotionComponent("mark");
const MotionMenu = /*@__PURE__*/ createMotionComponent("menu");
const MotionMenuitem = /*@__PURE__*/ createMotionComponent("menuitem");
const MotionMeter = /*@__PURE__*/ createMotionComponent("meter");
const MotionNav = /*@__PURE__*/ createMotionComponent("nav");
const MotionObject = /*@__PURE__*/ createMotionComponent("object");
const MotionOl = /*@__PURE__*/ createMotionComponent("ol");
const MotionOptgroup = /*@__PURE__*/ createMotionComponent("optgroup");
const MotionOption = /*@__PURE__*/ createMotionComponent("option");
const MotionOutput = /*@__PURE__*/ createMotionComponent("output");
const MotionP = /*@__PURE__*/ createMotionComponent("p");
const MotionParam = /*@__PURE__*/ createMotionComponent("param");
const MotionPicture = /*@__PURE__*/ createMotionComponent("picture");
const MotionPre = /*@__PURE__*/ createMotionComponent("pre");
const MotionProgress = /*@__PURE__*/ createMotionComponent("progress");
const MotionQ = /*@__PURE__*/ createMotionComponent("q");
const MotionRp = /*@__PURE__*/ createMotionComponent("rp");
const MotionRt = /*@__PURE__*/ createMotionComponent("rt");
const MotionRuby = /*@__PURE__*/ createMotionComponent("ruby");
const MotionS = /*@__PURE__*/ createMotionComponent("s");
const MotionSamp = /*@__PURE__*/ createMotionComponent("samp");
const MotionScript = /*@__PURE__*/ createMotionComponent("script");
const MotionSection = /*@__PURE__*/ createMotionComponent("section");
const MotionSelect = /*@__PURE__*/ createMotionComponent("select");
const MotionSmall = /*@__PURE__*/ createMotionComponent("small");
const MotionSource = /*@__PURE__*/ createMotionComponent("source");
const MotionSpan = /*@__PURE__*/ createMotionComponent("span");
const MotionStrong = /*@__PURE__*/ createMotionComponent("strong");
const MotionStyle = /*@__PURE__*/ createMotionComponent("style");
const MotionSub = /*@__PURE__*/ createMotionComponent("sub");
const MotionSummary = /*@__PURE__*/ createMotionComponent("summary");
const MotionSup = /*@__PURE__*/ createMotionComponent("sup");
const MotionTable = /*@__PURE__*/ createMotionComponent("table");
const MotionTbody = /*@__PURE__*/ createMotionComponent("tbody");
const MotionTd = /*@__PURE__*/ createMotionComponent("td");
const MotionTextarea = /*@__PURE__*/ createMotionComponent("textarea");
const MotionTfoot = /*@__PURE__*/ createMotionComponent("tfoot");
const MotionTh = /*@__PURE__*/ createMotionComponent("th");
const MotionThead = /*@__PURE__*/ createMotionComponent("thead");
const MotionTime = /*@__PURE__*/ createMotionComponent("time");
const MotionTitle = /*@__PURE__*/ createMotionComponent("title");
const MotionTr = /*@__PURE__*/ createMotionComponent("tr");
const MotionTrack = /*@__PURE__*/ createMotionComponent("track");
const MotionU = /*@__PURE__*/ createMotionComponent("u");
const MotionUl = /*@__PURE__*/ createMotionComponent("ul");
const MotionVideo = /*@__PURE__*/ createMotionComponent("video");
const MotionWbr = /*@__PURE__*/ createMotionComponent("wbr");
const MotionWebview = /*@__PURE__*/ createMotionComponent("webview");
/**
 * SVG components
 */
const MotionAnimate = /*@__PURE__*/ createMotionComponent("animate");
const MotionCircle = /*@__PURE__*/ createMotionComponent("circle");
const MotionDefs = /*@__PURE__*/ createMotionComponent("defs");
const MotionDesc = /*@__PURE__*/ createMotionComponent("desc");
const MotionEllipse = /*@__PURE__*/ createMotionComponent("ellipse");
const MotionG = /*@__PURE__*/ createMotionComponent("g");
const MotionImage = /*@__PURE__*/ createMotionComponent("image");
const MotionLine = /*@__PURE__*/ createMotionComponent("line");
const MotionFilter = /*@__PURE__*/ createMotionComponent("filter");
const MotionMarker = /*@__PURE__*/ createMotionComponent("marker");
const MotionMask = /*@__PURE__*/ createMotionComponent("mask");
const MotionMetadata = /*@__PURE__*/ createMotionComponent("metadata");
const MotionPath = /*@__PURE__*/ createMotionComponent("path");
const MotionPattern = /*@__PURE__*/ createMotionComponent("pattern");
const MotionPolygon = /*@__PURE__*/ createMotionComponent("polygon");
const MotionPolyline = /*@__PURE__*/ createMotionComponent("polyline");
const MotionRect = /*@__PURE__*/ createMotionComponent("rect");
const MotionStop = /*@__PURE__*/ createMotionComponent("stop");
const MotionSvg = /*@__PURE__*/ createMotionComponent("svg");
const MotionSymbol = /*@__PURE__*/ createMotionComponent("symbol");
const MotionText = /*@__PURE__*/ createMotionComponent("text");
const MotionTspan = /*@__PURE__*/ createMotionComponent("tspan");
const MotionUse = /*@__PURE__*/ createMotionComponent("use");
const MotionView = /*@__PURE__*/ createMotionComponent("view");
const MotionClipPath = /*@__PURE__*/ createMotionComponent("clipPath");
const MotionFeBlend = /*@__PURE__*/ createMotionComponent("feBlend");
const MotionFeColorMatrix = 
/*@__PURE__*/ createMotionComponent("feColorMatrix");
const MotionFeComponentTransfer = /*@__PURE__*/ createMotionComponent("feComponentTransfer");
const MotionFeComposite = 
/*@__PURE__*/ createMotionComponent("feComposite");
const MotionFeConvolveMatrix = 
/*@__PURE__*/ createMotionComponent("feConvolveMatrix");
const MotionFeDiffuseLighting = 
/*@__PURE__*/ createMotionComponent("feDiffuseLighting");
const MotionFeDisplacementMap = 
/*@__PURE__*/ createMotionComponent("feDisplacementMap");
const MotionFeDistantLight = 
/*@__PURE__*/ createMotionComponent("feDistantLight");
const MotionFeDropShadow = 
/*@__PURE__*/ createMotionComponent("feDropShadow");
const MotionFeFlood = /*@__PURE__*/ createMotionComponent("feFlood");
const MotionFeFuncA = /*@__PURE__*/ createMotionComponent("feFuncA");
const MotionFeFuncB = /*@__PURE__*/ createMotionComponent("feFuncB");
const MotionFeFuncG = /*@__PURE__*/ createMotionComponent("feFuncG");
const MotionFeFuncR = /*@__PURE__*/ createMotionComponent("feFuncR");
const MotionFeGaussianBlur = 
/*@__PURE__*/ createMotionComponent("feGaussianBlur");
const MotionFeImage = /*@__PURE__*/ createMotionComponent("feImage");
const MotionFeMerge = /*@__PURE__*/ createMotionComponent("feMerge");
const MotionFeMergeNode = 
/*@__PURE__*/ createMotionComponent("feMergeNode");
const MotionFeMorphology = 
/*@__PURE__*/ createMotionComponent("feMorphology");
const MotionFeOffset = /*@__PURE__*/ createMotionComponent("feOffset");
const MotionFePointLight = 
/*@__PURE__*/ createMotionComponent("fePointLight");
const MotionFeSpecularLighting = 
/*@__PURE__*/ createMotionComponent("feSpecularLighting");
const MotionFeSpotLight = 
/*@__PURE__*/ createMotionComponent("feSpotLight");
const MotionFeTile = /*@__PURE__*/ createMotionComponent("feTile");
const MotionFeTurbulence = 
/*@__PURE__*/ createMotionComponent("feTurbulence");
const MotionForeignObject = 
/*@__PURE__*/ createMotionComponent("foreignObject");
const MotionLinearGradient = 
/*@__PURE__*/ createMotionComponent("linearGradient");
const MotionRadialGradient = 
/*@__PURE__*/ createMotionComponent("radialGradient");
const MotionTextPath = /*@__PURE__*/ createMotionComponent("textPath");

exports.a = MotionA;
exports.abbr = MotionAbbr;
exports.address = MotionAddress;
exports.animate = MotionAnimate;
exports.area = MotionArea;
exports.article = MotionArticle;
exports.aside = MotionAside;
exports.audio = MotionAudio;
exports.b = MotionB;
exports.base = MotionBase;
exports.bdi = MotionBdi;
exports.bdo = MotionBdo;
exports.big = MotionBig;
exports.blockquote = MotionBlockquote;
exports.body = MotionBody;
exports.button = MotionButton;
exports.canvas = MotionCanvas;
exports.caption = MotionCaption;
exports.circle = MotionCircle;
exports.cite = MotionCite;
exports.clipPath = MotionClipPath;
exports.code = MotionCode;
exports.col = MotionCol;
exports.colgroup = MotionColgroup;
exports.create = createMotionComponent;
exports.data = MotionData;
exports.datalist = MotionDatalist;
exports.dd = MotionDd;
exports.defs = MotionDefs;
exports.del = MotionDel;
exports.desc = MotionDesc;
exports.details = MotionDetails;
exports.dfn = MotionDfn;
exports.dialog = MotionDialog;
exports.div = MotionDiv;
exports.dl = MotionDl;
exports.dt = MotionDt;
exports.ellipse = MotionEllipse;
exports.em = MotionEm;
exports.embed = MotionEmbed;
exports.feBlend = MotionFeBlend;
exports.feColorMatrix = MotionFeColorMatrix;
exports.feComponentTransfer = MotionFeComponentTransfer;
exports.feComposite = MotionFeComposite;
exports.feConvolveMatrix = MotionFeConvolveMatrix;
exports.feDiffuseLighting = MotionFeDiffuseLighting;
exports.feDisplacementMap = MotionFeDisplacementMap;
exports.feDistantLight = MotionFeDistantLight;
exports.feDropShadow = MotionFeDropShadow;
exports.feFlood = MotionFeFlood;
exports.feFuncA = MotionFeFuncA;
exports.feFuncB = MotionFeFuncB;
exports.feFuncG = MotionFeFuncG;
exports.feFuncR = MotionFeFuncR;
exports.feGaussianBlur = MotionFeGaussianBlur;
exports.feImage = MotionFeImage;
exports.feMerge = MotionFeMerge;
exports.feMergeNode = MotionFeMergeNode;
exports.feMorphology = MotionFeMorphology;
exports.feOffset = MotionFeOffset;
exports.fePointLight = MotionFePointLight;
exports.feSpecularLighting = MotionFeSpecularLighting;
exports.feSpotLight = MotionFeSpotLight;
exports.feTile = MotionFeTile;
exports.feTurbulence = MotionFeTurbulence;
exports.fieldset = MotionFieldset;
exports.figcaption = MotionFigcaption;
exports.figure = MotionFigure;
exports.filter = MotionFilter;
exports.footer = MotionFooter;
exports.foreignObject = MotionForeignObject;
exports.form = MotionForm;
exports.g = MotionG;
exports.h1 = MotionH1;
exports.h2 = MotionH2;
exports.h3 = MotionH3;
exports.h4 = MotionH4;
exports.h5 = MotionH5;
exports.h6 = MotionH6;
exports.head = MotionHead;
exports.header = MotionHeader;
exports.hgroup = MotionHgroup;
exports.hr = MotionHr;
exports.html = MotionHtml;
exports.i = MotionI;
exports.iframe = MotionIframe;
exports.image = MotionImage;
exports.img = MotionImg;
exports.input = MotionInput;
exports.ins = MotionIns;
exports.kbd = MotionKbd;
exports.keygen = MotionKeygen;
exports.label = MotionLabel;
exports.legend = MotionLegend;
exports.li = MotionLi;
exports.line = MotionLine;
exports.linearGradient = MotionLinearGradient;
exports.link = MotionLink;
exports.main = MotionMain;
exports.map = MotionMap;
exports.mark = MotionMark;
exports.marker = MotionMarker;
exports.mask = MotionMask;
exports.menu = MotionMenu;
exports.menuitem = MotionMenuitem;
exports.metadata = MotionMetadata;
exports.meter = MotionMeter;
exports.nav = MotionNav;
exports.object = MotionObject;
exports.ol = MotionOl;
exports.optgroup = MotionOptgroup;
exports.option = MotionOption;
exports.output = MotionOutput;
exports.p = MotionP;
exports.param = MotionParam;
exports.path = MotionPath;
exports.pattern = MotionPattern;
exports.picture = MotionPicture;
exports.polygon = MotionPolygon;
exports.polyline = MotionPolyline;
exports.pre = MotionPre;
exports.progress = MotionProgress;
exports.q = MotionQ;
exports.radialGradient = MotionRadialGradient;
exports.rect = MotionRect;
exports.rp = MotionRp;
exports.rt = MotionRt;
exports.ruby = MotionRuby;
exports.s = MotionS;
exports.samp = MotionSamp;
exports.script = MotionScript;
exports.section = MotionSection;
exports.select = MotionSelect;
exports.small = MotionSmall;
exports.source = MotionSource;
exports.span = MotionSpan;
exports.stop = MotionStop;
exports.strong = MotionStrong;
exports.style = MotionStyle;
exports.sub = MotionSub;
exports.summary = MotionSummary;
exports.sup = MotionSup;
exports.svg = MotionSvg;
exports.symbol = MotionSymbol;
exports.table = MotionTable;
exports.tbody = MotionTbody;
exports.td = MotionTd;
exports.text = MotionText;
exports.textPath = MotionTextPath;
exports.textarea = MotionTextarea;
exports.tfoot = MotionTfoot;
exports.th = MotionTh;
exports.thead = MotionThead;
exports.time = MotionTime;
exports.title = MotionTitle;
exports.tr = MotionTr;
exports.track = MotionTrack;
exports.tspan = MotionTspan;
exports.u = MotionU;
exports.ul = MotionUl;
exports.use = MotionUse;
exports.video = MotionVideo;
exports.view = MotionView;
exports.wbr = MotionWbr;
exports.webview = MotionWebview;
