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Add feature which loads the selected element from overpass to update the tags to the latest version

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This commit is contained in:
Pieter Vander Vennet 2021-04-21 01:26:13 +02:00
parent d7277838e4
commit c6b4ba43fb
4 changed files with 91 additions and 25 deletions
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57
Logic/ElementStorage.ts
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@ -23,34 +23,43 @@ export class ElementStorage {
*/
addOrGetElement(feature: any): UIEventSource<any> {
const elementId = feature.properties.id;
if (this._elements.has(elementId)) {
const es = this._elements.get(elementId);
if (es.data == feature.properties) {
// Reference comparison gives the same object! we can just return the event source
return es;
}
const newProperties = feature.properties;
const keptKeys = es.data;
// The element already exists
// We add all the new keys to the old keys
let somethingChanged = false;
for (const k in feature.properties) {
const v = feature.properties[k];
if (keptKeys[k] !== v) {
keptKeys[k] = v;
somethingChanged = true;
}
}
if (somethingChanged) {
es.ping();
}
const es = this.addOrGetById(elementId, newProperties)
return es;
} else {
const eventSource = new UIEventSource<any>(feature.properties, "tags of " + feature.properties.id);
this._elements.set(feature.properties.id, eventSource);
// At last, we overwrite the tag of the new feature to use the tags in the already existing event source
feature.properties = es.data
return es;
}
addOrGetById(elementId: string, newProperties: any): UIEventSource<any> {
if (!this._elements.has(elementId)) {
const eventSource = new UIEventSource<any>(newProperties, "tags of " + elementId);
this._elements.set(elementId, eventSource);
return eventSource;
}
const es = this._elements.get(elementId);
if (es.data == newProperties) {
// Reference comparison gives the same object! we can just return the event source
return es;
}
const keptKeys = es.data;
// The element already exists
// We use the new feature to overwrite all the properties in the already existing eventsource
let somethingChanged = false;
for (const k in newProperties) {
const v = newProperties[k];
if (keptKeys[k] !== v) {
keptKeys[k] = v;
somethingChanged = true;
}
}
if (somethingChanged) {
es.ping();
}
return es;
}
getEventSourceById(elementId): UIEventSource<any> {