56 lines
1.4 KiB
TypeScript
56 lines
1.4 KiB
TypeScript
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/**
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* Keeps track of a dictionary 'elementID' -> element
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*/
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import {UIEventSource} from "../UI/UIEventSource";
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export class ElementStorage {
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private _elements = [];
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constructor() {
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}
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addElementById(id: string, eventSource: UIEventSource<any>) {
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this._elements[id] = eventSource;
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}
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addElement(element): UIEventSource<any> {
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const eventSource = new UIEventSource<any>(element.properties);
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this._elements[element.properties.id] = eventSource;
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return eventSource;
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}
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addOrGetElement(element: any) {
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const elementId = element.properties.id;
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if (elementId in this._elements) {
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const es = this._elements[elementId];
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const keptKeys = es.data;
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// The element already exists
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// We add all the new keys to the old keys
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for (const k in element.properties) {
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const v = element.properties[k];
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if (keptKeys[k] !== v) {
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keptKeys[k] = v;
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es.ping();
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}
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}
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return es;
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}else{
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return this.addElement(element);
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}
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}
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getElement(elementId): UIEventSource<any> {
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if (elementId in this._elements) {
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return this._elements[elementId];
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}
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console.log("Can not find eventsource with id ", elementId);
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}
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removeId(oldId: string) {
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delete this._elements[oldId];
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}
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}
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