bc518174
 王天杨
提交两个项目文件
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class GroupAnimation {
constructor(animations) {
// Bound to accomadate common `return animation.stop` pattern
this.stop = () => this.runAll("stop");
this.animations = animations.filter(Boolean);
}
get finished() {
return Promise.all(this.animations.map((animation) => animation.finished));
}
/**
* TODO: Filter out cancelled or stopped animations before returning
*/
getAll(propName) {
return this.animations[0][propName];
}
setAll(propName, newValue) {
for (let i = 0; i < this.animations.length; i++) {
this.animations[i][propName] = newValue;
}
}
attachTimeline(timeline) {
const subscriptions = this.animations.map((animation) => animation.attachTimeline(timeline));
return () => {
subscriptions.forEach((cancel, i) => {
cancel && cancel();
this.animations[i].stop();
});
};
}
get time() {
return this.getAll("time");
}
set time(time) {
this.setAll("time", time);
}
get speed() {
return this.getAll("speed");
}
set speed(speed) {
this.setAll("speed", speed);
}
get state() {
return this.getAll("state");
}
get startTime() {
return this.getAll("startTime");
}
get duration() {
return getMax(this.animations, "duration");
}
get iterationDuration() {
return getMax(this.animations, "iterationDuration");
}
runAll(methodName) {
this.animations.forEach((controls) => controls[methodName]());
}
play() {
this.runAll("play");
}
pause() {
this.runAll("pause");
}
cancel() {
this.runAll("cancel");
}
complete() {
this.runAll("complete");
}
}
function getMax(animations, propName) {
let max = 0;
for (let i = 0; i < animations.length; i++) {
const value = animations[i][propName];
if (value !== null && value > max) {
max = value;
}
}
return max;
}
export { GroupAnimation };
//# sourceMappingURL=GroupAnimation.mjs.map
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