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@oku-ui/motion

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A tiny, performant animation library for VueJS

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import { ref, unref, useId, onMounted, onBeforeUnmount, onUpdated, isRef, computed, defineComponent, openBlock, createBlock, mergeProps, withCtx, renderSlot, toRefs, resolveDynamicComponent, TransitionGroup, Transition, reactive } from 'vue'; import { createContext, getElFromTemplateRef, Primitive } from '@oku-ui/primitives'; export * from 'motion'; const svgElementNames = [ // Basic shapes "circle", // Draws a circle. "ellipse", // Draws an ellipse, commonly used for ovals. "line", // Draws a straight line between two points. "polygon", // Creates a closed shape with multiple vertices. "polyline", // Creates a series of connected line segments. "rect", // Draws a rectangle with optional rounded corners. "path", // Defines a custom shape or path, supporting complex curves. "text", // Displays text within the SVG. "tspan", // Sub-element of <text>, used to style or position portions of text. "textPath", // Aligns text along a defined path. // Grouping and definitions "g", // Groups multiple SVG elements together. "defs", // Container for reusable definitions (e.g., gradients or symbols). "symbol", // Defines a reusable graphic, typically referenced with <use>. "use", // References and reuses a defined element or graphic. "desc", // Provides a description for accessibility or documentation purposes. "title", // Adds a title for accessibility or tooltips. // Filters and effects "filter", // Applies visual effects like blurring or lighting. "feBlend", // Blends multiple graphics together. "feColorMatrix", // Applies color transformations using a matrix. "feComponentTransfer", // Alters individual RGBA channels. "feComposite", // Combines images or graphics. "feConvolveMatrix", // Applies a custom kernel-based filter. "feDiffuseLighting", // Simulates diffuse lighting effects. "feDisplacementMap", // Warps an image or graphic using a displacement map. "feDropShadow", // Adds drop shadow effects. "feFlood", // Fills the canvas or graphic with a solid color. "feGaussianBlur", // Blurs the graphic using a Gaussian function. "feImage", // Renders an external image in an SVG context. "feMerge", // Combines multiple filter results. "feMorphology", // Erodes or dilates the edges of a shape. "feOffset", // Shifts graphics by a specified distance. "feSpecularLighting", // Simulates shiny lighting effects. "feTile", // Repeats graphics in a tiled pattern. "feTurbulence", // Adds texture or noise for a natural effect. // Animation "animate", // Animates a property over time. "animateMotion", // Moves an element along a defined path. "animateTransform", // Animates transformation properties like scale or rotate. "set", // Sets a property for a specific duration. // Masks and clipping paths "mask", // Creates a mask to hide or reveal portions of graphics. "clipPath", // Defines a clipping region to restrict rendering. // Gradients and painting "linearGradient", // Defines a linear gradient for fills or strokes. "radialGradient", // Defines a radial gradient for fills or strokes. "stop", // Specifies a color stop in a gradient. "pattern", // Defines a repeating pattern. // Additional elements "foreignObject", // Embeds non-SVG content (like HTML) within SVG. "style", // Embeds CSS styles for SVG elements. "script" // Embeds or links JavaScript code within SVG. ]; function isSvgElementName(tag) { return svgElementNames.includes(tag); } var invariant$2 = function () { }; if (process.env.NODE_ENV !== 'production') { invariant$2 = function (check, message) { if (!check) { throw new Error(message); } }; } const visualElementStore = new WeakMap(); function isSVGElement(element) { return element instanceof SVGElement && element.tagName !== "svg"; } const isMotionValue = (value) => Boolean(value && value.getVelocity); const scaleCorrectors = {}; /** * Generate a list of every possible transform key. */ const transformPropOrder$2 = [ "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$3 = new Set(transformPropOrder$2); function isForcedMotionValue(key, { layout, layoutId }) { return (transformProps$3.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$2.indexOf(key) !== -1 ? "attr" + key.charAt(0).toUpperCase() + key.substring(1) : key; newValues[targetKey] = props[key]; } } return newValues; } 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; } } function addUniqueItem$1(arr, item) { if (arr.indexOf(item) === -1) arr.push(item); } function removeItem$1(arr, item) { const index = arr.indexOf(item); if (index > -1) arr.splice(index, 1); } class SubscriptionManager { constructor() { this.subscriptions = []; } add(handler) { addUniqueItem$1(this.subscriptions, handler); return () => removeItem$1(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); warned.add(message); } const MotionGlobalConfig = { skipAnimations: false, useManualTiming: false, }; const noop$2 = (any) => any; 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]; // Clear the next frame queue nextFrame.clear(); // Execute this frame thisFrame.forEach(triggerCallback); 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 : noop$2, true); 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); }, }; /** * 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 = "11.11.17"; /** * 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); } function isAnimationControls(v) { return (v !== null && typeof v === "object" && typeof v.start === "function"); } /** * Decides if the supplied variable is variant label */ function isVariantLabel(v) { return typeof v === "string" || Array.isArray(v); } const variantPriorityOrder = [ "animate", "whileInView", "whileFocus", "whileHover", "whileTap", "whileDrag", "exit", ]; const variantProps = ["initial", ...variantPriorityOrder]; 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 === "11.11.17", `Attempting to mix Motion versions ${nextValue.version} with 11.11.17 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; } 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; } 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 clamp$1 = (min, max, v) => { if (v > max) return max; if (v < min) return min; return v; }; const number$1 = { test: (v) => typeof v === "number", parse: parseFloat, transform: (v) => v, }; const alpha$1 = { ...number$1, transform: (v) => clamp$1(0, 1, v), }; const scale$1 = { ...number$1, default: 1, }; const createUnitType$1 = (unit) => ({ test: (v) => typeof v === "string" && v.endsWith(unit) && v.split(" ").length === 1, parse: parseFloat, transform: (v) => `${v}${unit}`, }); const degrees$1 = /*@__PURE__*/ createUnitType$1("deg"); const percent$1 = /*@__PURE__*/ createUnitType$1("%"); const px$1 = /*@__PURE__*/ createUnitType$1("px"); const vh = /*@__PURE__*/ createUnitType$1("vh"); const vw = /*@__PURE__*/ createUnitType$1("vw"); const progressPercentage$1 = { ...percent$1, parse: (v) => percent$1.parse(v) / 100, transform: (v) => percent$1.transform(v * 100), }; const positionalKeys = new Set([ "width", "height", "top", "left", "right", "bottom", "x", "y", "translateX", "translateY", ]); const isNumOrPxType = (v) => v === number$1 || v === px$1; 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$2.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); /** * Check if the value is a zero value string like "0px" or "0%" */ const isZeroValueString = (v) => /^0[^.\s]+$/u.test(v); // 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$1(0, 255, v); const rgbUnit = { ...number$1, 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 = 1 }) => "rgba(" + rgbUnit.transform(red) + ", " + rgbUnit.transform(green) + ", " + rgbUnit.transform(blue) + ", " + sanitize(alpha$1.transform(alpha$1$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 hsla = { test: /*@__PURE__*/ isColorString("hsl", "hue"), parse: /*@__PURE__*/ splitColor("hue", "saturation", "lightness"), transform: ({ hue, saturation, lightness, alpha: alpha$1$1 = 1 }) => { return ("hsla(" + Math.round(hue) + ", " + percent$1.transform(sanitize(saturation)) + ", " + percent$1.transform(sanitize(lightness)) + ", " + sanitize(alpha$1.transform(alpha$1$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, }; /** * 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$1, px$1, percent$1, degrees$1, vw, vh, auto]; /** * Tests a dimensional value against the list of dimension ValueTypes */ const findDimensionValueType = (v) => dimensionValueTypes.find(testValueType(v)); /** * 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)); /** * 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$1 = { // Border props borderWidth: px$1, borderTopWidth: px$1, borderRightWidth: px$1, borderBottomWidth: px$1, borderLeftWidth: px$1, borderRadius: px$1, radius: px$1, borderTopLeftRadius: px$1, borderTopRightRadius: px$1, borderBottomRightRadius: px$1, borderBottomLeftRadius: px$1, // Positioning props width: px$1, maxWidth: px$1, height: px$1, maxHeight: px$1, top: px$1, right: px$1, bottom: px$1, left: px$1, // Spacing props padding: px$1, paddingTop: px$1, paddingRight: px$1, paddingBottom: px$1, paddingLeft: px$1, margin: px$1, marginTop: px$1, marginRight: px$1, marginBottom: px$1, marginLeft: px$1, // Misc backgroundPositionX: px$1, backgroundPositionY: px$1, }; const transformValueTypes$1 = { rotate: degrees$1, rotateX: degrees$1, rotateY: degrees$1, rotateZ: degrees$1, scale: scale$1, scaleX: scale$1, scaleY: scale$1, scaleZ: scale$1, skew: degrees$1, skewX: degrees$1, skewY: degrees$1, distance: px$1, translateX: px$1, translateY: px$1, translateZ: px$1, x: px$1, y: px$1, z: px$1, perspective: px$1, transformPerspective: px$1, opacity: alpha$1, originX: progressPercentage$1, originY: progressPercentage$1, originZ: px$1, }; const int$1 = { ...number$1, transform: Math.round, }; const numberValueTypes$1 = { ...browserNumberValueTypes$1, ...transformValueTypes$1, zIndex: int$1, size: px$1, // SVG fillOpacity: alpha$1, strokeOpacity: alpha$1, numOctaves: int$1, }; /** * A map of default value types for common values */ const defaultValueTypes = { ...numberValueTypes$1, // 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; } const createAxis = () => ({ min: 0, max: 0 }); const createBox = () => ({ x: createAxis(), y: createAxis(), }); 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;