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29 lines
1.6 KiB
29 lines
1.6 KiB
/**
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* A base class which combines grainjs Disposable with mixed-in backbone Events. It includes the
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* backbone Events methods, and when disposed, stops backbone listeners started with listenTo().
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*/
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import {Events as BackboneEvents, EventsHash} from 'backbone';
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import {Disposable} from 'grainjs';
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// In Typescript, mixins are awkward. This follows the recommendation here
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// https://www.typescriptlang.org/docs/handbook/mixins.html
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export class DisposableWithEvents extends Disposable implements BackboneEvents {
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public on: (eventName: string|EventsHash, callback?: (...args: any[]) => void, context?: any) => any;
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public off: (eventName?: string, callback?: (...args: any[]) => void, context?: any) => any;
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public trigger: (eventName: string, ...args: any[]) => any;
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public bind: (eventName: string, callback: (...args: any[]) => void, context?: any) => any;
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public unbind: (eventName?: string, callback?: (...args: any[]) => void, context?: any) => any;
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public once: (events: string, callback: (...args: any[]) => void, context?: any) => any;
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public listenTo: (object: any, events: string, callback: (...args: any[]) => void) => any;
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public listenToOnce: (object: any, events: string, callback: (...args: any[]) => void) => any;
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public stopListening: (object?: any, events?: string, callback?: (...args: any[]) => void) => any;
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// DisposableWithEvents knows also how to stop any backbone listeners started with listenTo().
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constructor() {
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super();
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this.onDispose(this.stopListening, this);
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}
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}
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Object.assign(DisposableWithEvents.prototype, BackboneEvents);
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