framer-motion
Version:
A simple and powerful JavaScript animation library
1,386 lines (1,319 loc) • 525 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react')) :
typeof define === 'function' && define.amd ? define(['exports', 'react'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Motion = {}, global.React));
})(this, (function (exports, React$1) { 'use strict';
function _interopNamespaceDefault(e) {
var n = Object.create(null);
if (e) {
Object.keys(e).forEach(function (k) {
if (k !== 'default') {
var d = Object.getOwnPropertyDescriptor(e, k);
Object.defineProperty(n, k, d.get ? d : {
enumerable: true,
get: function () { return e[k]; }
});
}
});
}
n.default = e;
return Object.freeze(n);
}
var React__namespace = /*#__PURE__*/_interopNamespaceDefault(React$1);
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);
}
function createDOMMotionComponentProxy(componentFactory) {
if (typeof Proxy === "undefined") {
return componentFactory;
}
/**
* A cache of generated `motion` components, e.g `motion.div`, `motion.input` etc.
* Rather than generating them anew every render.
*/
const componentCache = new Map();
const deprecatedFactoryFunction = (...args) => {
{
warnOnce(false, "motion() is deprecated. Use motion.create() instead.");
}
return componentFactory(...args);
};
return new Proxy(deprecatedFactoryFunction, {
/**
* Called when `motion` is referenced with a prop: `motion.div`, `motion.input` etc.
* The prop name is passed through as `key` and we can use that to generate a `motion`
* DOM component with that name.
*/
get: (_target, key) => {
if (key === "create")
return componentFactory;
/**
* If this element doesn't exist in the component cache, create it and cache.
*/
if (!componentCache.has(key)) {
componentCache.set(key, componentFactory(key));
}
return componentCache.get(key);
},
});
}
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];
/**
* 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);
/**
* Converts seconds to milliseconds
*
* @param seconds - Time in seconds.
* @return milliseconds - Converted time in milliseconds.
*/
const secondsToMilliseconds = (seconds) => seconds * 1000;
const millisecondsToSeconds = (milliseconds) => milliseconds / 1000;
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;
};
function getValueTransition$1(transition, key) {
return transition
? transition[key] ||
transition["default"] ||
transition
: undefined;
}
const MotionGlobalConfig = {
skipAnimations: false,
useManualTiming: false,
};
const instantAnimationState = {
current: false,
};
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;
}
const noop = (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$1 = 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 = MotionGlobalConfig.useManualTiming
? state.timestamp
: performance.now();
runNextFrame = false;
state.delta = useDefaultElapsed
? 1000 / 60
: Math.max(Math.min(timestamp - state.timestamp, maxElapsed$1), 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, true);
/*
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 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;
}
}
exports.warning = noop;
exports.invariant = noop;
{
exports.warning = (check, message) => {
if (!check && typeof console !== "undefined") {
console.warn(message);
}
};
exports.invariant = (check, message) => {
if (!check) {
throw new Error(message);
}
};
}
/**
* 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 [`--${token1 !== null && token1 !== void 0 ? token1 : token2}`, fallback];
}
const maxDepth = 4;
function getVariableValue(current, element, depth = 1) {
exports.invariant(depth <= maxDepth, `Max CSS variable fallback depth detected in property "${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;
}
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,
};
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 positionalKeys = new Set([
"width",
"height",
"top",
"left",
"right",
"bottom",
"x",
"y",
"translateX",
"translateY",
]);
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;
/**
* 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));
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();
}
}
// 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 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);
}
}
}
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();
}
}
function isGenerator(type) {
return typeof type === "function";
}
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);
},
};
/**
* Check if a value is animatable. Examples:
*
* ✅: 100, "100px", "#fff"
* ❌: "block", "url(2.jpg)"
* @param value
*
* @internal
*/