framer-motion
Version:
A simple and powerful JavaScript animation library
1,339 lines (1,293 loc) • 111 kB
JavaScript
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var jsxRuntime = require('react/jsx-runtime');
var React = require('react');
var create = require('./create-DwAwaNot.js');
var motionDom = require('motion-dom');
var motionUtils = require('motion-utils');
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);
/**
* Measurement functionality has to be within a separate component
* to leverage snapshot lifecycle.
*/
class PopChildMeasure extends React__namespace.Component {
getSnapshotBeforeUpdate(prevProps) {
const element = this.props.childRef.current;
if (element && prevProps.isPresent && !this.props.isPresent) {
const parent = element.offsetParent;
const parentWidth = parent instanceof HTMLElement ? parent.offsetWidth || 0 : 0;
const size = this.props.sizeRef.current;
size.height = element.offsetHeight || 0;
size.width = element.offsetWidth || 0;
size.top = element.offsetTop;
size.left = element.offsetLeft;
size.right = parentWidth - size.width - size.left;
}
return null;
}
/**
* Required with getSnapshotBeforeUpdate to stop React complaining.
*/
componentDidUpdate() { }
render() {
return this.props.children;
}
}
function PopChild({ children, isPresent, anchorX }) {
const id = React.useId();
const ref = React.useRef(null);
const size = React.useRef({
width: 0,
height: 0,
top: 0,
left: 0,
right: 0,
});
const { nonce } = React.useContext(create.MotionConfigContext);
/**
* We create and inject a style block so we can apply this explicit
* sizing in a non-destructive manner by just deleting the style block.
*
* We can't apply size via render as the measurement happens
* in getSnapshotBeforeUpdate (post-render), likewise if we apply the
* styles directly on the DOM node, we might be overwriting
* styles set via the style prop.
*/
React.useInsertionEffect(() => {
const { width, height, top, left, right } = size.current;
if (isPresent || !ref.current || !width || !height)
return;
const x = anchorX === "left" ? `left: ${left}` : `right: ${right}`;
ref.current.dataset.motionPopId = id;
const style = document.createElement("style");
if (nonce)
style.nonce = nonce;
document.head.appendChild(style);
if (style.sheet) {
style.sheet.insertRule(`
[data-motion-pop-id="${id}"] {
position: absolute !important;
width: ${width}px !important;
height: ${height}px !important;
${x}px !important;
top: ${top}px !important;
}
`);
}
return () => {
document.head.removeChild(style);
};
}, [isPresent]);
return (jsxRuntime.jsx(PopChildMeasure, { isPresent: isPresent, childRef: ref, sizeRef: size, children: React__namespace.cloneElement(children, { ref }) }));
}
const PresenceChild = ({ children, initial, isPresent, onExitComplete, custom, presenceAffectsLayout, mode, anchorX, }) => {
const presenceChildren = create.useConstant(newChildrenMap);
const id = React.useId();
const memoizedOnExitComplete = React.useCallback((childId) => {
presenceChildren.set(childId, true);
for (const isComplete of presenceChildren.values()) {
if (!isComplete)
return; // can stop searching when any is incomplete
}
onExitComplete && onExitComplete();
}, [presenceChildren, onExitComplete]);
const context = React.useMemo(() => ({
id,
initial,
isPresent,
custom,
onExitComplete: memoizedOnExitComplete,
register: (childId) => {
presenceChildren.set(childId, false);
return () => presenceChildren.delete(childId);
},
}),
/**
* If the presence of a child affects the layout of the components around it,
* we want to make a new context value to ensure they get re-rendered
* so they can detect that layout change.
*/
presenceAffectsLayout
? [Math.random(), memoizedOnExitComplete]
: [isPresent, memoizedOnExitComplete]);
React.useMemo(() => {
presenceChildren.forEach((_, key) => presenceChildren.set(key, false));
}, [isPresent]);
/**
* If there's no `motion` components to fire exit animations, we want to remove this
* component immediately.
*/
React__namespace.useEffect(() => {
!isPresent &&
!presenceChildren.size &&
onExitComplete &&
onExitComplete();
}, [isPresent]);
if (mode === "popLayout") {
children = (jsxRuntime.jsx(PopChild, { isPresent: isPresent, anchorX: anchorX, children: children }));
}
return (jsxRuntime.jsx(create.PresenceContext.Provider, { value: context, children: children }));
};
function newChildrenMap() {
return new Map();
}
const getChildKey = (child) => child.key || "";
function onlyElements(children) {
const filtered = [];
// We use forEach here instead of map as map mutates the component key by preprending `.$`
React.Children.forEach(children, (child) => {
if (React.isValidElement(child))
filtered.push(child);
});
return filtered;
}
/**
* `AnimatePresence` enables the animation of components that have been removed from the tree.
*
* When adding/removing more than a single child, every child **must** be given a unique `key` prop.
*
* Any `motion` components that have an `exit` property defined will animate out when removed from
* the tree.
*
* ```jsx
* import { motion, AnimatePresence } from 'framer-motion'
*
* export const Items = ({ items }) => (
* <AnimatePresence>
* {items.map(item => (
* <motion.div
* key={item.id}
* initial={{ opacity: 0 }}
* animate={{ opacity: 1 }}
* exit={{ opacity: 0 }}
* />
* ))}
* </AnimatePresence>
* )
* ```
*
* You can sequence exit animations throughout a tree using variants.
*
* If a child contains multiple `motion` components with `exit` props, it will only unmount the child
* once all `motion` components have finished animating out. Likewise, any components using
* `usePresence` all need to call `safeToRemove`.
*
* @public
*/
const AnimatePresence = ({ children, custom, initial = true, onExitComplete, presenceAffectsLayout = true, mode = "sync", propagate = false, anchorX = "left", }) => {
const [isParentPresent, safeToRemove] = create.usePresence(propagate);
/**
* Filter any children that aren't ReactElements. We can only track components
* between renders with a props.key.
*/
const presentChildren = React.useMemo(() => onlyElements(children), [children]);
/**
* Track the keys of the currently rendered children. This is used to
* determine which children are exiting.
*/
const presentKeys = propagate && !isParentPresent ? [] : presentChildren.map(getChildKey);
/**
* If `initial={false}` we only want to pass this to components in the first render.
*/
const isInitialRender = React.useRef(true);
/**
* A ref containing the currently present children. When all exit animations
* are complete, we use this to re-render the component with the latest children
* *committed* rather than the latest children *rendered*.
*/
const pendingPresentChildren = React.useRef(presentChildren);
/**
* Track which exiting children have finished animating out.
*/
const exitComplete = create.useConstant(() => new Map());
/**
* Save children to render as React state. To ensure this component is concurrent-safe,
* we check for exiting children via an effect.
*/
const [diffedChildren, setDiffedChildren] = React.useState(presentChildren);
const [renderedChildren, setRenderedChildren] = React.useState(presentChildren);
create.useIsomorphicLayoutEffect(() => {
isInitialRender.current = false;
pendingPresentChildren.current = presentChildren;
/**
* Update complete status of exiting children.
*/
for (let i = 0; i < renderedChildren.length; i++) {
const key = getChildKey(renderedChildren[i]);
if (!presentKeys.includes(key)) {
if (exitComplete.get(key) !== true) {
exitComplete.set(key, false);
}
}
else {
exitComplete.delete(key);
}
}
}, [renderedChildren, presentKeys.length, presentKeys.join("-")]);
const exitingChildren = [];
if (presentChildren !== diffedChildren) {
let nextChildren = [...presentChildren];
/**
* Loop through all the currently rendered components and decide which
* are exiting.
*/
for (let i = 0; i < renderedChildren.length; i++) {
const child = renderedChildren[i];
const key = getChildKey(child);
if (!presentKeys.includes(key)) {
nextChildren.splice(i, 0, child);
exitingChildren.push(child);
}
}
/**
* If we're in "wait" mode, and we have exiting children, we want to
* only render these until they've all exited.
*/
if (mode === "wait" && exitingChildren.length) {
nextChildren = exitingChildren;
}
setRenderedChildren(onlyElements(nextChildren));
setDiffedChildren(presentChildren);
/**
* Early return to ensure once we've set state with the latest diffed
* children, we can immediately re-render.
*/
return null;
}
if (process.env.NODE_ENV !== "production" &&
mode === "wait" &&
renderedChildren.length > 1) {
console.warn(`You're attempting to animate multiple children within AnimatePresence, but its mode is set to "wait". This will lead to odd visual behaviour.`);
}
/**
* If we've been provided a forceRender function by the LayoutGroupContext,
* we can use it to force a re-render amongst all surrounding components once
* all components have finished animating out.
*/
const { forceRender } = React.useContext(create.LayoutGroupContext);
return (jsxRuntime.jsx(jsxRuntime.Fragment, { children: renderedChildren.map((child) => {
const key = getChildKey(child);
const isPresent = propagate && !isParentPresent
? false
: presentChildren === renderedChildren ||
presentKeys.includes(key);
const onExit = () => {
if (exitComplete.has(key)) {
exitComplete.set(key, true);
}
else {
return;
}
let isEveryExitComplete = true;
exitComplete.forEach((isExitComplete) => {
if (!isExitComplete)
isEveryExitComplete = false;
});
if (isEveryExitComplete) {
forceRender?.();
setRenderedChildren(pendingPresentChildren.current);
propagate && safeToRemove?.();
onExitComplete && onExitComplete();
}
};
return (jsxRuntime.jsx(PresenceChild, { isPresent: isPresent, initial: !isInitialRender.current || initial
? undefined
: false, custom: custom, presenceAffectsLayout: presenceAffectsLayout, mode: mode, onExitComplete: isPresent ? undefined : onExit, anchorX: anchorX, children: child }, key));
}) }));
};
/**
* Note: Still used by components generated by old versions of Framer
*
* @deprecated
*/
const DeprecatedLayoutGroupContext = React.createContext(null);
const notify = (node) => !node.isLayoutDirty && node.willUpdate(false);
function nodeGroup() {
const nodes = new Set();
const subscriptions = new WeakMap();
const dirtyAll = () => nodes.forEach(notify);
return {
add: (node) => {
nodes.add(node);
subscriptions.set(node, node.addEventListener("willUpdate", dirtyAll));
},
remove: (node) => {
nodes.delete(node);
const unsubscribe = subscriptions.get(node);
if (unsubscribe) {
unsubscribe();
subscriptions.delete(node);
}
dirtyAll();
},
dirty: dirtyAll,
};
}
function useIsMounted() {
const isMounted = React.useRef(false);
create.useIsomorphicLayoutEffect(() => {
isMounted.current = true;
return () => {
isMounted.current = false;
};
}, []);
return isMounted;
}
function useForceUpdate() {
const isMounted = useIsMounted();
const [forcedRenderCount, setForcedRenderCount] = React.useState(0);
const forceRender = React.useCallback(() => {
isMounted.current && setForcedRenderCount(forcedRenderCount + 1);
}, [forcedRenderCount]);
/**
* Defer this to the end of the next animation frame in case there are multiple
* synchronous calls.
*/
const deferredForceRender = React.useCallback(() => motionDom.frame.postRender(forceRender), [forceRender]);
return [deferredForceRender, forcedRenderCount];
}
const shouldInheritGroup = (inherit) => inherit === true;
const shouldInheritId = (inherit) => shouldInheritGroup(inherit === true) || inherit === "id";
const LayoutGroup = ({ children, id, inherit = true }) => {
const layoutGroupContext = React.useContext(create.LayoutGroupContext);
const deprecatedLayoutGroupContext = React.useContext(DeprecatedLayoutGroupContext);
const [forceRender, key] = useForceUpdate();
const context = React.useRef(null);
const upstreamId = layoutGroupContext.id || deprecatedLayoutGroupContext;
if (context.current === null) {
if (shouldInheritId(inherit) && upstreamId) {
id = id ? upstreamId + "-" + id : upstreamId;
}
context.current = {
id,
group: shouldInheritGroup(inherit)
? layoutGroupContext.group || nodeGroup()
: nodeGroup(),
};
}
const memoizedContext = React.useMemo(() => ({ ...context.current, forceRender }), [key]);
return (jsxRuntime.jsx(create.LayoutGroupContext.Provider, { value: memoizedContext, children: children }));
};
/**
* Used in conjunction with the `m` component to reduce bundle size.
*
* `m` is a version of the `motion` component that only loads functionality
* critical for the initial render.
*
* `LazyMotion` can then be used to either synchronously or asynchronously
* load animation and gesture support.
*
* ```jsx
* // Synchronous loading
* import { LazyMotion, m, domAnimation } from "framer-motion"
*
* function App() {
* return (
* <LazyMotion features={domAnimation}>
* <m.div animate={{ scale: 2 }} />
* </LazyMotion>
* )
* }
*
* // Asynchronous loading
* import { LazyMotion, m } from "framer-motion"
*
* function App() {
* return (
* <LazyMotion features={() => import('./path/to/domAnimation')}>
* <m.div animate={{ scale: 2 }} />
* </LazyMotion>
* )
* }
* ```
*
* @public
*/
function LazyMotion({ children, features, strict = false }) {
const [, setIsLoaded] = React.useState(!isLazyBundle(features));
const loadedRenderer = React.useRef(undefined);
/**
* If this is a synchronous load, load features immediately
*/
if (!isLazyBundle(features)) {
const { renderer, ...loadedFeatures } = features;
loadedRenderer.current = renderer;
create.loadFeatures(loadedFeatures);
}
React.useEffect(() => {
if (isLazyBundle(features)) {
features().then(({ renderer, ...loadedFeatures }) => {
create.loadFeatures(loadedFeatures);
loadedRenderer.current = renderer;
setIsLoaded(true);
});
}
}, []);
return (jsxRuntime.jsx(create.LazyContext.Provider, { value: { renderer: loadedRenderer.current, strict }, children: children }));
}
function isLazyBundle(features) {
return typeof features === "function";
}
/**
* `MotionConfig` is used to set configuration options for all children `motion` components.
*
* ```jsx
* import { motion, MotionConfig } from "framer-motion"
*
* export function App() {
* return (
* <MotionConfig transition={{ type: "spring" }}>
* <motion.div animate={{ x: 100 }} />
* </MotionConfig>
* )
* }
* ```
*
* @public
*/
function MotionConfig({ children, isValidProp, ...config }) {
isValidProp && create.loadExternalIsValidProp(isValidProp);
/**
* Inherit props from any parent MotionConfig components
*/
config = { ...React.useContext(create.MotionConfigContext), ...config };
/**
* Don't allow isStatic to change between renders as it affects how many hooks
* motion components fire.
*/
config.isStatic = create.useConstant(() => config.isStatic);
/**
* Creating a new config context object will re-render every `motion` component
* every time it renders. So we only want to create a new one sparingly.
*/
const context = React.useMemo(() => config, [
JSON.stringify(config.transition),
config.transformPagePoint,
config.reducedMotion,
]);
return (jsxRuntime.jsx(create.MotionConfigContext.Provider, { value: context, children: children }));
}
const ReorderContext = React.createContext(null);
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) => {
if (process.env.NODE_ENV !== "production") {
motionUtils.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);
},
});
}
const motion = /*@__PURE__*/ createDOMMotionComponentProxy(create.createMotionComponent);
function checkReorder(order, value, offset, velocity) {
if (!velocity)
return order;
const index = order.findIndex((item) => item.value === value);
if (index === -1)
return order;
const nextOffset = velocity > 0 ? 1 : -1;
const nextItem = order[index + nextOffset];
if (!nextItem)
return order;
const item = order[index];
const nextLayout = nextItem.layout;
const nextItemCenter = create.mixNumber(nextLayout.min, nextLayout.max, 0.5);
if ((nextOffset === 1 && item.layout.max + offset > nextItemCenter) ||
(nextOffset === -1 && item.layout.min + offset < nextItemCenter)) {
return motionUtils.moveItem(order, index, index + nextOffset);
}
return order;
}
function ReorderGroupComponent({ children, as = "ul", axis = "y", onReorder, values, ...props }, externalRef) {
const Component = create.useConstant(() => motion[as]);
const order = [];
const isReordering = React.useRef(false);
motionUtils.invariant(Boolean(values), "Reorder.Group must be provided a values prop");
const context = {
axis,
registerItem: (value, layout) => {
// If the entry was already added, update it rather than adding it again
const idx = order.findIndex((entry) => value === entry.value);
if (idx !== -1) {
order[idx].layout = layout[axis];
}
else {
order.push({ value: value, layout: layout[axis] });
}
order.sort(compareMin);
},
updateOrder: (item, offset, velocity) => {
if (isReordering.current)
return;
const newOrder = checkReorder(order, item, offset, velocity);
if (order !== newOrder) {
isReordering.current = true;
onReorder(newOrder
.map(getValue)
.filter((value) => values.indexOf(value) !== -1));
}
},
};
React.useEffect(() => {
isReordering.current = false;
});
return (jsxRuntime.jsx(Component, { ...props, ref: externalRef, ignoreStrict: true, children: jsxRuntime.jsx(ReorderContext.Provider, { value: context, children: children }) }));
}
const ReorderGroup = /*@__PURE__*/ React.forwardRef(ReorderGroupComponent);
function getValue(item) {
return item.value;
}
function compareMin(a, b) {
return a.layout.min - b.layout.min;
}
/**
* Creates a `MotionValue` to track the state and velocity of a value.
*
* Usually, these are created automatically. For advanced use-cases, like use with `useTransform`, you can create `MotionValue`s externally and pass them into the animated component via the `style` prop.
*
* ```jsx
* export const MyComponent = () => {
* const scale = useMotionValue(1)
*
* return <motion.div style={{ scale }} />
* }
* ```
*
* @param initial - The initial state.
*
* @public
*/
function useMotionValue(initial) {
const value = create.useConstant(() => motionDom.motionValue(initial));
/**
* If this motion value is being used in static mode, like on
* the Framer canvas, force components to rerender when the motion
* value is updated.
*/
const { isStatic } = React.useContext(create.MotionConfigContext);
if (isStatic) {
const [, setLatest] = React.useState(initial);
React.useEffect(() => value.on("change", setLatest), []);
}
return value;
}
const isCustomValueType = (v) => {
return v && typeof v === "object" && v.mix;
};
const getMixer = (v) => (isCustomValueType(v) ? v.mix : undefined);
function transform(...args) {
const useImmediate = !Array.isArray(args[0]);
const argOffset = useImmediate ? 0 : -1;
const inputValue = args[0 + argOffset];
const inputRange = args[1 + argOffset];
const outputRange = args[2 + argOffset];
const options = args[3 + argOffset];
const interpolator = create.interpolate(inputRange, outputRange, {
mixer: getMixer(outputRange[0]),
...options,
});
return useImmediate ? interpolator(inputValue) : interpolator;
}
function useCombineMotionValues(values, combineValues) {
/**
* Initialise the returned motion value. This remains the same between renders.
*/
const value = useMotionValue(combineValues());
/**
* Create a function that will update the template motion value with the latest values.
* This is pre-bound so whenever a motion value updates it can schedule its
* execution in Framesync. If it's already been scheduled it won't be fired twice
* in a single frame.
*/
const updateValue = () => value.set(combineValues());
/**
* Synchronously update the motion value with the latest values during the render.
* This ensures that within a React render, the styles applied to the DOM are up-to-date.
*/
updateValue();
/**
* Subscribe to all motion values found within the template. Whenever any of them change,
* schedule an update.
*/
create.useIsomorphicLayoutEffect(() => {
const scheduleUpdate = () => motionDom.frame.preRender(updateValue, false, true);
const subscriptions = values.map((v) => v.on("change", scheduleUpdate));
return () => {
subscriptions.forEach((unsubscribe) => unsubscribe());
motionDom.cancelFrame(updateValue);
};
});
return value;
}
function useComputed(compute) {
/**
* Open session of collectMotionValues. Any MotionValue that calls get()
* will be saved into this array.
*/
motionDom.collectMotionValues.current = [];
compute();
const value = useCombineMotionValues(motionDom.collectMotionValues.current, compute);
/**
* Synchronously close session of collectMotionValues.
*/
motionDom.collectMotionValues.current = undefined;
return value;
}
function useTransform(input, inputRangeOrTransformer, outputRange, options) {
if (typeof input === "function") {
return useComputed(input);
}
const transformer = typeof inputRangeOrTransformer === "function"
? inputRangeOrTransformer
: transform(inputRangeOrTransformer, outputRange, options);
return Array.isArray(input)
? useListTransform(input, transformer)
: useListTransform([input], ([latest]) => transformer(latest));
}
function useListTransform(values, transformer) {
const latest = create.useConstant(() => []);
return useCombineMotionValues(values, () => {
latest.length = 0;
const numValues = values.length;
for (let i = 0; i < numValues; i++) {
latest[i] = values[i].get();
}
return transformer(latest);
});
}
function useDefaultMotionValue(value, defaultValue = 0) {
return create.isMotionValue(value) ? value : useMotionValue(defaultValue);
}
function ReorderItemComponent({ children, style = {}, value, as = "li", onDrag, layout = true, ...props }, externalRef) {
const Component = create.useConstant(() => motion[as]);
const context = React.useContext(ReorderContext);
const point = {
x: useDefaultMotionValue(style.x),
y: useDefaultMotionValue(style.y),
};
const zIndex = useTransform([point.x, point.y], ([latestX, latestY]) => latestX || latestY ? 1 : "unset");
motionUtils.invariant(Boolean(context), "Reorder.Item must be a child of Reorder.Group");
const { axis, registerItem, updateOrder } = context;
return (jsxRuntime.jsx(Component, { drag: axis, ...props, dragSnapToOrigin: true, style: { ...style, x: point.x, y: point.y, zIndex }, layout: layout, onDrag: (event, gesturePoint) => {
const { velocity } = gesturePoint;
velocity[axis] &&
updateOrder(value, point[axis].get(), velocity[axis]);
onDrag && onDrag(event, gesturePoint);
}, onLayoutMeasure: (measured) => registerItem(value, measured), ref: externalRef, ignoreStrict: true, children: children }));
}
const ReorderItem = /*@__PURE__*/ React.forwardRef(ReorderItemComponent);
var namespace = /*#__PURE__*/Object.freeze({
__proto__: null,
Group: ReorderGroup,
Item: ReorderItem
});
const wrap = (min, max, v) => {
const rangeSize = max - min;
return ((((v - min) % rangeSize) + rangeSize) % rangeSize) + min;
};
function getEasingForSegment(easing, i) {
return create.isEasingArray(easing) ? easing[wrap(0, easing.length, i)] : easing;
}
function isDOMKeyframes(keyframes) {
return typeof keyframes === "object" && !Array.isArray(keyframes);
}
function resolveSubjects(subject, keyframes, scope, selectorCache) {
if (typeof subject === "string" && isDOMKeyframes(keyframes)) {
return motionDom.resolveElements(subject, scope, selectorCache);
}
else if (subject instanceof NodeList) {
return Array.from(subject);
}
else if (Array.isArray(subject)) {
return subject;
}
else {
return [subject];
}
}
function calculateRepeatDuration(duration, repeat, _repeatDelay) {
return duration * (repeat + 1);
}
/**
* Given a absolute or relative time definition and current/prev time state of the sequence,
* calculate an absolute time for the next keyframes.
*/
function calcNextTime(current, next, prev, labels) {
if (typeof next === "number") {
return next;
}
else if (next.startsWith("-") || next.startsWith("+")) {
return Math.max(0, current + parseFloat(next));
}
else if (next === "<") {
return prev;
}
else {
return labels.get(next) ?? current;
}
}
function eraseKeyframes(sequence, startTime, endTime) {
for (let i = 0; i < sequence.length; i++) {
const keyframe = sequence[i];
if (keyframe.at > startTime && keyframe.at < endTime) {
motionUtils.removeItem(sequence, keyframe);
// If we remove this item we have to push the pointer back one
i--;
}
}
}
function addKeyframes(sequence, keyframes, easing, offset, startTime, endTime) {
/**
* Erase every existing value between currentTime and targetTime,
* this will essentially splice this timeline into any currently
* defined ones.
*/
eraseKeyframes(sequence, startTime, endTime);
for (let i = 0; i < keyframes.length; i++) {
sequence.push({
value: keyframes[i],
at: create.mixNumber(startTime, endTime, offset[i]),
easing: getEasingForSegment(easing, i),
});
}
}
/**
* Take an array of times that represent repeated keyframes. For instance
* if we have original times of [0, 0.5, 1] then our repeated times will
* be [0, 0.5, 1, 1, 1.5, 2]. Loop over the times and scale them back
* down to a 0-1 scale.
*/
function normalizeTimes(times, repeat) {
for (let i = 0; i < times.length; i++) {
times[i] = times[i] / (repeat + 1);
}
}
function compareByTime(a, b) {
if (a.at === b.at) {
if (a.value === null)
return 1;
if (b.value === null)
return -1;
return 0;
}
else {
return a.at - b.at;
}
}
const defaultSegmentEasing = "easeInOut";
const MAX_REPEAT = 20;
function createAnimationsFromSequence(sequence, { defaultTransition = {}, ...sequenceTransition } = {}, scope, generators) {
const defaultDuration = defaultTransition.duration || 0.3;
const animationDefinitions = new Map();
const sequences = new Map();
const elementCache = {};
const timeLabels = new Map();
let prevTime = 0;
let currentTime = 0;
let totalDuration = 0;
/**
* Build the timeline by mapping over the sequence array and converting
* the definitions into keyframes and offsets with absolute time values.
* These will later get converted into relative offsets in a second pass.
*/
for (let i = 0; i < sequence.length; i++) {
const segment = sequence[i];
/**
* If this is a timeline label, mark it and skip the rest of this iteration.
*/
if (typeof segment === "string") {
timeLabels.set(segment, currentTime);
continue;
}
else if (!Array.isArray(segment)) {
timeLabels.set(segment.name, calcNextTime(currentTime, segment.at, prevTime, timeLabels));
continue;
}
let [subject, keyframes, transition = {}] = segment;
/**
* If a relative or absolute time value has been specified we need to resolve
* it in relation to the currentTime.
*/
if (transition.at !== undefined) {
currentTime = calcNextTime(currentTime, transition.at, prevTime, timeLabels);
}
/**
* Keep track of the maximum duration in this definition. This will be
* applied to currentTime once the definition has been parsed.
*/
let maxDuration = 0;
const resolveValueSequence = (valueKeyframes, valueTransition, valueSequence, elementIndex = 0, numSubjects = 0) => {
const valueKeyframesAsList = keyframesAsList(valueKeyframes);
const { delay = 0, times = create.defaultOffset(valueKeyframesAsList), type = "keyframes", repeat, repeatType, repeatDelay = 0, ...remainingTransition } = valueTransition;
let { ease = defaultTransition.ease || "easeOut", duration } = valueTransition;
/**
* Resolve stagger() if defined.
*/
const calculatedDelay = typeof delay === "function"
? delay(elementIndex, numSubjects)
: delay;
/**
* If this animation should and can use a spring, generate a spring easing function.
*/
const numKeyframes = valueKeyframesAsList.length;
const createGenerator = motionDom.isGenerator(type)
? type
: generators?.[type];
if (numKeyframes <= 2 && createGenerator) {
/**
* As we're creating an easing function from a spring,
* ideally we want to generate it using the real distance
* between the two keyframes. However this isn't always
* possible - in these situations we use 0-100.
*/
let absoluteDelta = 100;
if (numKeyframes === 2 &&
isNumberKeyframesArray(valueKeyframesAsList)) {
const delta = valueKeyframesAsList[1] - valueKeyframesAsList[0];
absoluteDelta = Math.abs(delta);
}
const springTransition = { ...remainingTransition };
if (duration !== undefined) {
springTransition.duration = motionUtils.secondsToMilliseconds(duration);
}
const springEasing = motionDom.createGeneratorEasing(springTransition, absoluteDelta, createGenerator);
ease = springEasing.ease;
duration = springEasing.duration;
}
duration ?? (duration = defaultDuration);
const startTime = currentTime + calculatedDelay;
/**
* If there's only one time offset of 0, fill in a second with length 1
*/
if (times.length === 1 && times[0] === 0) {
times[1] = 1;
}
/**
* Fill out if offset if fewer offsets than keyframes
*/
const remainder = times.length - valueKeyframesAsList.length;
remainder > 0 && create.fillOffset(times, remainder);
/**
* If only one value has been set, ie [1], push a null to the start of
* the keyframe array. This will let us mark a keyframe at this point
* that will later be hydrated with the previous value.
*/
valueKeyframesAsList.length === 1 &&
valueKeyframesAsList.unshift(null);
/**
* Handle repeat options
*/
if (repeat) {
motionUtils.invariant(repeat < MAX_REPEAT, "Repeat count too high, must be less than 20");
duration = calculateRepeatDuration(duration, repeat);
const originalKeyframes = [...valueKeyframesAsList];
const originalTimes = [...times];
ease = Array.isArray(ease) ? [...ease] : [ease];
const originalEase = [...ease];
for (let repeatIndex = 0; repeatIndex < repeat; repeatIndex++) {
valueKeyframesAsList.push(...originalKeyframes);
for (let keyframeIndex = 0; keyframeIndex < originalKeyframes.length; keyframeIndex++) {
times.push(originalTimes[keyframeIndex] + (repeatIndex + 1));
ease.push(keyframeIndex === 0
? "linear"
: getEasingForSegment(originalEase, keyframeIndex - 1));
}
}
normalizeTimes(times, repeat);
}
const targetTime = startTime + duration;
/**
* Add keyframes, mapping offsets to absolute time.
*/
addKeyframes(valueSequence, valueKeyframesAsList, ease, times, startTime, targetTime);
maxDuration = Math.max(calculatedDelay + duration, maxDuration);
totalDuration = Math.max(targetTime, totalDuration);
};
if (create.isMotionValue(subject)) {
const subjectSequence = getSubjectSequence(subject, sequences);
resolveValueSequence(keyframes, transition, getValueSequence("default", subjectSequence));
}
else {
const subjects = resolveSubjects(subject, keyframes, scope, elementCache);
const numSubjects = subjects.length;
/**
* For every element in this segment, process the defined values.
*/
for (let subjectIndex = 0; subjectIndex < numSubjects; subjectIndex++) {
/**
* Cast necessary, but we know these are of this type
*/
keyframes = keyframes;
transition = transition;
const thisSubject = subjects[subjectIndex];
const subjectSequence = getSubjectSequence(thisSubject, sequences);
for (const key in keyframes) {
resolveValueSequence(keyframes[key], getValueTransition(transition, key), getValueSequence(key, subjectSequence), subjectIndex, numSubjects);
}
}
}
prevTime = currentTime;
currentTime += maxDuration;
}
/**
* For every element and value combination create a new animation.
*/
sequences.forEach((valueSequences, element) => {
for (const key in valueSequences) {
const valueSequence = valueSequences[key];
/**
* Arrange all the keyframes in ascending time order.
*/
valueSequence.sort(compareByTime);
const keyframes = [];
const valueOffset = [];
const valueEasing = [];
/**
* For each keyframe, translate absolute times into
* relative offsets based on the total duration of the timeline.
*/
for (let i = 0; i < valueSequence.length; i++) {
const { at, value, easing } = valueSequence[i];
keyframes.push(value);
valueOffset.push(motionUtils.progress(0, totalDuration, at));
valueEasing.push(easing || "easeOut");
}
/**
* If the first keyframe doesn't land on offset: 0
* provide one by duplicating the initial keyframe. This ensures
* it snaps to the first keyframe when the animation starts.
*/
if (valueOffset[0] !== 0) {
valueOffset.unshift(0);
keyframes.unshift(keyframes[0]);
valueEasing.unshift(defaultSegmentEasing);
}
/**
* If the last keyframe doesn't land on offset: 1
* provide one with a null wildcard value. This will ensure it
* stays static until the end of the animation.
*/
if (valueOffset[valueOffset.length - 1] !== 1) {
valueOffset.push(1);
keyframes.push(null);
}
if (!animationDefinitions.has(element)) {
animationDefinitions.set(element, {
keyframes: {},
transition: {},
});
}
const definition = animationDefinitions.get(element);
definition.keyframes[key] = keyframes;
definition.transition[key] = {
...defaultTransition,
duration: totalDuration,
ease: valueEasing,
times: valueOffset,
...sequenceTransition,
};
}
});
return animationDefinitions;
}
function getSubjectSequence(subject, sequences) {
!sequences.has(subject) && sequences.set(subject, {});
return sequences.get(subject);
}
function getValueSequence(name, sequences) {
if (!sequences[name])
sequences[name] = [];
return sequences[name];
}
function keyframesAsList(keyframes) {
return Array.isArray(keyframes) ? keyframes : [keyframes];
}
function getValueTransition(transition, key) {
return transition && transition[key]
? {
...transition,
...transition[key],
}
: { ...transition };
}
const isNumber = (keyframe) => typeof keyframe === "number";
const isNumberKeyframesArray = (keyframes) => keyframes.every(isNumber);
function isObjectKey(key, object) {
return key in object;
}
class ObjectVisualElement extends create.VisualElement {
constructor() {
super(...arguments);
this.type = "object";
}
readValueFromInstance(instance, key) {
if (isObjectKey(key, instance)) {
const value = instance[key];
if (typeof value === "string" || typeof value === "number") {
return value;
}
}
return undefined;
}
getBaseTargetFromProps() {
return undefined;
}
removeValueFromRenderState(key, renderState) {
delete renderState.output[key];
}
measureInstanceViewportBox() {
return create.createBox();
}
build(renderState, latestValues) {
Object.assign(renderState.output, latestValues);
}
renderInstance(instance, { output }) {
Object.assign(instance, output);
}
sortInstanceNodePosition() {
return 0;
}
}
function createDOMVisualElement(element) {
const options = {
presenceContext: null,
props: {},
visualState: {
renderState: {
transform: {},
transformOrigin: {},
style: {},
vars: {},
attrs: {},
},
latestValues: {},
},
};
const node = create.isSVGElement(element)
? new create.SVGVisualElement(options)
: new create.HTMLVisualElement(options);
node.mount(element);
create.visualElementStore.set(element, node);
}
function createObjectVisualElement(subject) {
const options = {
presenceContext: null,
props: {},
visualState: {
renderState: {
output: {},
},
latestValues: {},
},
};
const node = new ObjectVisualElement(options);
node.mount(subject);
create.visualElementStore.set(subject, node);
}
function isSingleValue(subject, keyframes) {
return (create.isMotionValue(subject) ||
typeof subject === "number" ||
(typeof subject === "string" && !isDOMKeyframes(keyframes)));
}
/**
* Implementation
*/
function animateSubject(subject, keyframes, options, scope) {
const animations = [];
if (isSingleValue(subject, keyframes)) {
animations.push(create.animateSingleValue(subject, isDOMKeyframes(keyframes)
? keyframes.default || keyframes
: keyframes, options ? options.default || options : options));
}
else {
const subjects = resolveSubjects(subject, keyframes, scope);
const numSubjects = subjects.length;
motionUtils.invariant(Boolean(numSubjects), "No valid elements provided.");
for (let i = 0; i < numSubjects; i++) {
const thisSubject = subjects[i];
const createVisualElement = thisSubject instanceof Element
? createDOMVisualElement
: createObjectVisualElement;
if (!create.visualElementStore.has(thisSubject)) {
createVisualElement(thisSubject);
}
const visualElement = create.visualElementStore.get(thisSubject);
const transition = { ...options };
/**
* Resolve stagger function if provided.
*/
if ("delay" in transition &&
typeof transition.delay === "function") {
transition.delay = transition.delay(i, numSubjects);
}
animations.push(...create.animateTarget(visualElement, { ...keyframes, transition }, {}));
}
}
return animations;
}
function animateSequence(sequence, options, scope) {
const animations = [];
const animationDefinitions = createAnimationsFromSequence(sequence, options, scope, { spring: create.spring });
animationDefinitions.forEach(({ keyframes, transition }, subject) => {
animations.push(...animateSubject(subject, keyframes, transition));
});
return animations;
}
function isSequence(value) {
return Array.isArray(value) && value.some(Array.isArray);
}
/**
* Creates an animation function that is optionally scoped
* to a specific element.
*/
function createScopedAnimate(scope) {
/**
* Implementation
*/
function scopedAnimate(subjectOrSequence, optionsOrKeyframes, options) {
let animations = [];
if (isSequence(subjectOrSequence)) {
animations = animateSequence(subjectOrSequence, optionsOrKeyframes, scope);
}
else {
animations = animateSubject(subjectOrSequence, optionsOrKeyframes, options, scope);
}
const animation = new motionDom.GroupAnimationWithThen(animations);
if (scope) {
scope.animations.push(animation);
}
return animation;
}
return scopedAnimate;
}
const animate = createScopedAnimate();
function animateElements(elementOrSelector, keyframes, options, scope) {
const elements = motionDom.resolveElements(elementOrSelector, scope);
const numElements = elements.length;
motionUtils.invariant(Boolean(numElements), "No valid element provided.");
const animations = [];
for (let i = 0; i < numElements; i++) {
const element = elements[i];
const elementTransition = { ...options };
/**
* Resolve stagger function if provided.
*/
if (typeof elementTransition.delay === "function") {
elementTransition.delay = elementTransition.delay(i, numElements);
}
for (const valueName in keyframes) {
const valueKeyframes = keyframes[valueName];
const valueOptions = {
...motionDom.getValueTransition(elementTransition, valueName),
};
valueOptions.duration && (valueOptions.duration = motionUtils.secondsToMilliseconds(valueOptions.duration));
valueOptions.delay && (valueOptions.delay = motionUtils.secondsToMilliseconds(valueOptions.delay));
animations.push(new motionDom.NativeAnimation({
element,
name: valueName,
keyframes: valueKeyframes,
transition: valueOptions,
allowFlatten: !elementTransition.type && !elementTransition.ease,
}));
}
}
return animations;
}
const createScopedWaapiAnimate = (scope) => {
function scopedAnimate(elementOrSelector, keyframes, options) {
return new motionDom.GroupAnimationWithThen(animateElements(elementOrSelector, keyframes, options, scope));
}
return scopedAnimate;
};
const animateMini = /*@__PURE__*/ createScopedWaapiAnimate();
function observeTimeline(update, timeline) {
let prevProgress;
const onFrame = () => {
const { currentTime } = timeline;
const percentage = currentTime === null ? 0 : currentTime.value;
const progress = percentage / 100;
if (prevProgress !== progress) {
update(progress);
}
prevProgress = progress;
};
motionDom.frame.update(onFrame, true);
return () => motionDom.cancelFrame(onFrame);
}
const resizeHandlers = new WeakMap();
let observer;
function getElementSize(target, borderBoxSize) {
if (borderBoxSize) {
const { inlineSize, blockSize } = borderBoxSize[0];
return { width: inlineSize, height: blockSize };
}
else if (target instanceof SVGElement && "getBBox" in target) {
return target.getBBox();
}
else {
return {
width: target.offsetWidth,
height: target.offsetHeight,
};
}
}
function notifyTarget({ target, contentRect, borderBoxSize, }) {
resizeHandlers.get(target)?.forEach((handler) => {
handler({
target,
contentSize: contentRect,
get size() {
return getElementSize(target, borderBoxSize);
},
});
});
}
function notifyAll(entries) {
entries.forEach(notifyTarget);
}
function createResizeObserver() {
if (typeof ResizeObserver === "undefined")
return;
observer = new ResizeObserver(notifyAll);
}
function resizeElem