| import { Scheduler } from '../Scheduler'; |
| export class AsyncScheduler extends Scheduler { |
| constructor() { |
| super(...arguments); |
| this.actions = []; |
| /** |
| * A flag to indicate whether the Scheduler is currently executing a batch of |
| * queued actions. |
| * @type {boolean} |
| */ |
| this.active = false; |
| /** |
| * An internal ID used to track the latest asynchronous task such as those |
| * coming from `setTimeout`, `setInterval`, `requestAnimationFrame`, and |
| * others. |
| * @type {any} |
| */ |
| this.scheduled = undefined; |
| } |
| flush(action) { |
| const { actions } = this; |
| if (this.active) { |
| actions.push(action); |
| return; |
| } |
| let error; |
| this.active = true; |
| do { |
| if (error = action.execute(action.state, action.delay)) { |
| break; |
| } |
| } while (action = actions.shift()); // exhaust the scheduler queue |
| this.active = false; |
| if (error) { |
| while (action = actions.shift()) { |
| action.unsubscribe(); |
| } |
| throw error; |
| } |
| } |
| } |
| //# sourceMappingURL=AsyncScheduler.js.map |