| "use strict"; |
| var __extends = (this && this.__extends) || function (d, b) { |
| for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; |
| function __() { this.constructor = d; } |
| d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); |
| }; |
| var AsyncAction_1 = require('./AsyncAction'); |
| var AnimationFrame_1 = require('../util/AnimationFrame'); |
| /** |
| * We need this JSDoc comment for affecting ESDoc. |
| * @ignore |
| * @extends {Ignored} |
| */ |
| var AnimationFrameAction = (function (_super) { |
| __extends(AnimationFrameAction, _super); |
| function AnimationFrameAction(scheduler, work) { |
| _super.call(this, scheduler, work); |
| this.scheduler = scheduler; |
| this.work = work; |
| } |
| AnimationFrameAction.prototype.requestAsyncId = function (scheduler, id, delay) { |
| if (delay === void 0) { delay = 0; } |
| // If delay is greater than 0, request as an async action. |
| if (delay !== null && delay > 0) { |
| return _super.prototype.requestAsyncId.call(this, scheduler, id, delay); |
| } |
| // Push the action to the end of the scheduler queue. |
| scheduler.actions.push(this); |
| // If an animation frame has already been requested, don't request another |
| // one. If an animation frame hasn't been requested yet, request one. Return |
| // the current animation frame request id. |
| return scheduler.scheduled || (scheduler.scheduled = AnimationFrame_1.AnimationFrame.requestAnimationFrame(scheduler.flush.bind(scheduler, null))); |
| }; |
| AnimationFrameAction.prototype.recycleAsyncId = function (scheduler, id, delay) { |
| if (delay === void 0) { delay = 0; } |
| // If delay exists and is greater than 0, or if the delay is null (the |
| // action wasn't rescheduled) but was originally scheduled as an async |
| // action, then recycle as an async action. |
| if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) { |
| return _super.prototype.recycleAsyncId.call(this, scheduler, id, delay); |
| } |
| // If the scheduler queue is empty, cancel the requested animation frame and |
| // set the scheduled flag to undefined so the next AnimationFrameAction will |
| // request its own. |
| if (scheduler.actions.length === 0) { |
| AnimationFrame_1.AnimationFrame.cancelAnimationFrame(id); |
| scheduler.scheduled = undefined; |
| } |
| // Return undefined so the action knows to request a new async id if it's rescheduled. |
| return undefined; |
| }; |
| return AnimationFrameAction; |
| }(AsyncAction_1.AsyncAction)); |
| exports.AnimationFrameAction = AnimationFrameAction; |
| //# sourceMappingURL=AnimationFrameAction.js.map |