56 lines
1.2 KiB
TypeScript
56 lines
1.2 KiB
TypeScript
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export interface QueueObject {
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animate: (...args: any[]) => Promise<any>;
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context: any;
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args?: any[];
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onError?: (error: any) => void;
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}
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export class AnimationQueue {
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private __running = false;
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private __queueObjects: QueueObject[] = [];
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push(o: QueueObject): void {
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if (this.__running) {
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this.__queueObjects.push(o);
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} else {
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this.__running = true;
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this.__animate(o);
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}
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}
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clear(): void {
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this.__queueObjects = [];
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}
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private __animate(o: QueueObject): void {
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const __this = this;
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try {
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if (!o.animate) {
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return;
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}
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o.animate
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.apply(o.context, !!o.args ? o.args : [])
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.then(() => {
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if (0 < __this.__queueObjects.length) {
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const __o = __this.__queueObjects.shift();
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if (!!__o) {
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__this.__animate.call(__this, __o);
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} else {
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__this.__running = false;
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}
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}
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})
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.catch(reason => {
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if (!!o.onError) {
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o.onError.apply(o.context, [reason]);
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}
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});
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} catch (e) {
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if (!!o.onError) {
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o.onError.apply(o.context, [e]);
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}
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}
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}
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}
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