mapcomplete/Logic/ElementStorage.ts
2021-01-02 21:03:40 +01:00

55 lines
No EOL
1.5 KiB
TypeScript

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