42 lines
1.9 KiB
TypeScript
42 lines
1.9 KiB
TypeScript
import { Component, Vue } from 'vue-property-decorator';
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import { AsyncLazy } from '@/infrastructure/Threading/AsyncLazy';
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import { IApplicationContext } from '@/application/Context/IApplicationContext';
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import { buildContext } from '@/application/Context/ApplicationContextProvider';
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import { IApplicationContextChangedEvent } from '@/application/Context/IApplicationContext';
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import { IApplication } from '@/domain/IApplication';
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import { ICategoryCollectionState } from '@/application/Context/State/ICategoryCollectionState';
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import { EventSubscriptionCollection } from '../infrastructure/Events/EventSubscriptionCollection';
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// @ts-ignore because https://github.com/vuejs/vue-class-component/issues/91
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@Component
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export abstract class StatefulVue extends Vue {
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public static instance = new AsyncLazy<IApplicationContext>(
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() => Promise.resolve(buildContext()));
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protected readonly events = new EventSubscriptionCollection();
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private readonly ownEvents = new EventSubscriptionCollection();
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public async mounted() {
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const context = await this.getCurrentContextAsync();
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this.ownEvents.register(context.contextChanged.on((event) => this.handleStateChangedEvent(event)));
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this.initialize(context.app);
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this.handleCollectionState(context.state, undefined);
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}
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public destroyed() {
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this.ownEvents.unsubscribeAll();
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this.events.unsubscribeAll();
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}
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protected abstract initialize(app: IApplication): void;
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protected abstract handleCollectionState(
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newState: ICategoryCollectionState, oldState: ICategoryCollectionState | undefined): void;
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protected getCurrentContextAsync(): Promise<IApplicationContext> {
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return StatefulVue.instance.getValueAsync();
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}
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private handleStateChangedEvent(event: IApplicationContextChangedEvent) {
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this.handleCollectionState(event.newState, event.oldState);
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}
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}
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