rxjs/dist/esm5/internal/scheduler/AnimationFrameAction.js

Reactive Extensions for modern JavaScript

import { __extends } from "tslib";
import { AsyncAction } from './AsyncAction';
import { animationFrameProvider } from './animationFrameProvider';
var AnimationFrameAction = (function (_super) {
    __extends(AnimationFrameAction, _super);
    function AnimationFrameAction(scheduler, work) {
        var _this = _super.call(this, scheduler, work) || this;
        _this.scheduler = scheduler;
        _this.work = work;
        return _this;
    }
    AnimationFrameAction.prototype.requestAsyncId = function (scheduler, id, delay) {
        if (delay === void 0) { delay = 0; }
        if (delay !== null && delay > 0) {
            return _super.prototype.requestAsyncId.call(this, scheduler, id, delay);
        }
        scheduler.actions.push(this);
        return scheduler._scheduled || (scheduler._scheduled = animationFrameProvider.requestAnimationFrame(function () { return scheduler.flush(undefined); }));
    };
    AnimationFrameAction.prototype.recycleAsyncId = function (scheduler, id, delay) {
        if (delay === void 0) { delay = 0; }
        if ((delay != null && delay > 0) || (delay == null && this.delay > 0)) {
            return _super.prototype.recycleAsyncId.call(this, scheduler, id, delay);
        }
        if (scheduler.actions.length === 0) {
            animationFrameProvider.cancelAnimationFrame(id);
            scheduler._scheduled = undefined;
        }
        return undefined;
    };
    return AnimationFrameAction;
}(AsyncAction));
export { AnimationFrameAction };
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