59 lines
1.3 KiB
TypeScript
59 lines
1.3 KiB
TypeScript
import { PubSubService } from '@ohif/core';
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export type ViewedDataPayload = {
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viewedDataId?: string;
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viewedDataCleared?: boolean;
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};
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class ViewedDataService extends PubSubService {
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public static readonly EVENTS = {
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VIEWED_DATA_CHANGED: 'event::viewedDataChanged',
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};
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public static REGISTRATION = {
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name: 'viewedDataService',
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altName: 'ViewedDataService',
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create: () => {
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return new ViewedDataService();
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},
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};
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private viewedDataIds = new Set<string>();
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constructor() {
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super(ViewedDataService.EVENTS);
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}
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public markDataViewed(dataId: string): void {
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if (!dataId || this.viewedDataIds.has(dataId)) {
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return;
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}
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this.viewedDataIds.add(dataId);
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this._broadcastEvent(this.EVENTS.VIEWED_DATA_CHANGED, {
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viewedDataId: dataId,
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});
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}
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public isDataViewed(dataId: string): boolean {
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if (!dataId) {
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return false;
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}
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return this.viewedDataIds.has(dataId);
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}
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public clearViewedData(): void {
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this.viewedDataIds.clear();
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this._broadcastEvent(this.EVENTS.VIEWED_DATA_CHANGED, {
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viewedDataCleared: true,
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});
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}
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public subscribeViewedDataChanges(listener: (payload: ViewedDataPayload) => void) {
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return this.subscribe(this.EVENTS.VIEWED_DATA_CHANGED, listener);
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}
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}
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export default ViewedDataService;
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