ActivatableMixin.ts
93 lines
| 2.7 KiB
| video/mp2t
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r9 | import { IActivationController } from './IActivationController'; | |
| import { IActivatable } from './IActivatable'; | |||
| import { AsyncComponent } from './AsyncComponent'; | |||
| import { ICancellation } from '../ICancellation'; | |||
| import { EmptyCancellation } from '../EmptyCancellation'; | |||
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r10 | import * as log from '@implab/core/log/trace!'; | |
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r9 | ||
| type Constructor<T = {}> = new (...args: any[]) => T; | |||
| function ActivatableMixin<TBase extends Constructor<AsyncComponent>>(Base: TBase) { | |||
| return class extends Base implements IActivatable { | |||
| _controller: IActivationController; | |||
| _active: boolean; | |||
| isActive() { | |||
| return this._active; | |||
| } | |||
| getActivationController() { | |||
| return this._controller; | |||
| } | |||
| setActivationController(controller: IActivationController) { | |||
| this._controller = controller; | |||
| } | |||
| async onActivating(ct: ICancellation) { | |||
| if (this._controller) | |||
| await this._controller.activating(this, ct); | |||
| } | |||
| async onActivated(ct: ICancellation) { | |||
| if (this._controller) | |||
| await this._controller.activated(this, ct); | |||
| } | |||
| async activate(ct: ICancellation = EmptyCancellation.default) { | |||
| if (this.isActive()) | |||
| return; | |||
| ct = this.startOperation(ct); | |||
| try { | |||
| await this.onActivating(ct); | |||
| this._active = true; | |||
| try { | |||
| await this.onActivated(ct); | |||
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r10 | } catch(e) { | |
| log.error(e); | |||
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r9 | // TODO log error | |
| } | |||
| this.completeSuccess(); | |||
| } catch (e) { | |||
| this.completeFail(e); | |||
| } | |||
| return this.getCompletion(); | |||
| } | |||
| async onDeactivating(ct: ICancellation) { | |||
| if (this._controller) | |||
| await this._controller.deactivating(this, ct); | |||
| } | |||
| async onDeactivated(ct: ICancellation) { | |||
| if (this._controller) | |||
| await this._controller.deactivated(this, ct); | |||
| } | |||
| async deactivate(ct: ICancellation = EmptyCancellation.default) { | |||
| if (!this.isActive()) | |||
| return; | |||
| ct = this.startOperation(ct); | |||
| try { | |||
| await this.onDeactivating(ct); | |||
| this._active = false; | |||
| try { | |||
| await this.onDeactivated(ct); | |||
| } catch { | |||
| // TODO log error | |||
| } | |||
| this.completeSuccess(); | |||
| } catch (e) { | |||
| this.completeFail(e); | |||
| } | |||
| return this.getCompletion(); | |||
| } | |||
| } | |||
| } | |||
| namespace ActivatableMixin { | |||
| } | |||
| export = ActivatableMixin; |