AsyncMotionValueAnimation.mjs
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import { MotionGlobalConfig, noop } from 'motion-utils';
import { time } from '../frameloop/sync-time.mjs';
import { JSAnimation } from './JSAnimation.mjs';
import { getFinalKeyframe } from './keyframes/get-final.mjs';
import { KeyframeResolver, flushKeyframeResolvers } from './keyframes/KeyframesResolver.mjs';
import { NativeAnimationExtended } from './NativeAnimationExtended.mjs';
import { canAnimate } from './utils/can-animate.mjs';
import { makeAnimationInstant } from './utils/make-animation-instant.mjs';
import { WithPromise } from './utils/WithPromise.mjs';
import { supportsBrowserAnimation } from './waapi/supports/waapi.mjs';
/**
* Maximum time allowed between an animation being created and it being
* resolved for us to use the latter as the start time.
*
* This is to ensure that while we prefer to "start" an animation as soon
* as it's triggered, we also want to avoid a visual jump if there's a big delay
* between these two moments.
*/
const MAX_RESOLVE_DELAY = 40;
class AsyncMotionValueAnimation extends WithPromise {
constructor({ autoplay = true, delay = 0, type = "keyframes", repeat = 0, repeatDelay = 0, repeatType = "loop", keyframes, name, motionValue, element, ...options }) {
super();
/**
* Bound to support return animation.stop pattern
*/
this.stop = () => {
if (this._animation) {
this._animation.stop();
this.stopTimeline?.();
}
this.keyframeResolver?.cancel();
};
this.createdAt = time.now();
const optionsWithDefaults = {
autoplay,
delay,
type,
repeat,
repeatDelay,
repeatType,
name,
motionValue,
element,
...options,
};
const KeyframeResolver$1 = element?.KeyframeResolver || KeyframeResolver;
this.keyframeResolver = new KeyframeResolver$1(keyframes, (resolvedKeyframes, finalKeyframe, forced) => this.onKeyframesResolved(resolvedKeyframes, finalKeyframe, optionsWithDefaults, !forced), name, motionValue, element);
this.keyframeResolver?.scheduleResolve();
}
onKeyframesResolved(keyframes, finalKeyframe, options, sync) {
this.keyframeResolver = undefined;
const { name, type, velocity, delay, isHandoff, onUpdate } = options;
this.resolvedAt = time.now();
/**
* If we can't animate this value with the resolved keyframes
* then we should complete it immediately.
*/
let canAnimateValue = true;
if (!canAnimate(keyframes, name, type, velocity)) {
canAnimateValue = false;
if (MotionGlobalConfig.instantAnimations || !delay) {
onUpdate?.(getFinalKeyframe(keyframes, options, finalKeyframe));
}
keyframes[0] = keyframes[keyframes.length - 1];
makeAnimationInstant(options);
options.repeat = 0;
}
/**
* Resolve startTime for the animation.
*
* This method uses the createdAt and resolvedAt to calculate the
* animation startTime. *Ideally*, we would use the createdAt time as t=0
* as the following frame would then be the first frame of the animation in
* progress, which would feel snappier.
*
* However, if there's a delay (main thread work) between the creation of
* the animation and the first committed frame, we prefer to use resolvedAt
* to avoid a sudden jump into the animation.
*/
const startTime = sync
? !this.resolvedAt
? this.createdAt
: this.resolvedAt - this.createdAt > MAX_RESOLVE_DELAY
? this.resolvedAt
: this.createdAt
: undefined;
const resolvedOptions = {
startTime,
finalKeyframe,
...options,
keyframes,
};
/**
* Animate via WAAPI if possible. If this is a handoff animation, the optimised animation will be running via
* WAAPI. Therefore, this animation must be JS to ensure it runs "under" the
* optimised animation.
*
* Also skip WAAPI when keyframes aren't animatable, as the resolved
* values may not be valid CSS and would trigger browser warnings.
*/
const useWaapi = canAnimateValue &&
!isHandoff &&
supportsBrowserAnimation(resolvedOptions);
const element = resolvedOptions.motionValue?.owner?.current;
let animation;
if (useWaapi) {
try {
animation = new NativeAnimationExtended({
...resolvedOptions,
element,
});
}
catch {
animation = new JSAnimation(resolvedOptions);
}
}
else {
animation = new JSAnimation(resolvedOptions);
}
animation.finished.then(() => {
this.notifyFinished();
}).catch(noop);
if (this.pendingTimeline) {
this.stopTimeline = animation.attachTimeline(this.pendingTimeline);
this.pendingTimeline = undefined;
}
this._animation = animation;
}
get finished() {
if (!this._animation) {
return this._finished;
}
else {
return this.animation.finished;
}
}
then(onResolve, _onReject) {
return this.finished.finally(onResolve).then(() => { });
}
get animation() {
if (!this._animation) {
this.keyframeResolver?.resume();
flushKeyframeResolvers();
}
return this._animation;
}
get duration() {
return this.animation.duration;
}
get iterationDuration() {
return this.animation.iterationDuration;
}
get time() {
return this.animation.time;
}
set time(newTime) {
this.animation.time = newTime;
}
get speed() {
return this.animation.speed;
}
get state() {
return this.animation.state;
}
set speed(newSpeed) {
this.animation.speed = newSpeed;
}
get startTime() {
return this.animation.startTime;
}
attachTimeline(timeline) {
if (this._animation) {
this.stopTimeline = this.animation.attachTimeline(timeline);
}
else {
this.pendingTimeline = timeline;
}
return () => this.stop();
}
play() {
this.animation.play();
}
pause() {
this.animation.pause();
}
complete() {
this.animation.complete();
}
cancel() {
if (this._animation) {
this.animation.cancel();
}
this.keyframeResolver?.cancel();
}
}
export { AsyncMotionValueAnimation };
//# sourceMappingURL=AsyncMotionValueAnimation.mjs.map