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Small performance issues, improvement of #579

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This commit is contained in:
Pieter Vander Vennet 2022-01-05 18:08:42 +01:00
parent 4fd30d1a62
commit ee962f4ba3
2 changed files with 17 additions and 9 deletions
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5
Logic/UIEventSource.ts
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@ -281,10 +281,12 @@ export class UIEventSource<T> {
* @param f: The transforming function
* @param extraSources: also trigger the update if one of these sources change
* @param g: a 'backfunction to let the sync run in two directions. (data of the new UIEVEntSource, currentData) => newData
* @param allowUnregister: if set, the update will be halted if no listeners are registered
*/
public map<J>(f: ((t: T) => J),
extraSources: UIEventSource<any>[] = [],
g: ((j: J, t: T) => T) = undefined): UIEventSource<J> {
g: ((j: J, t: T) => T) = undefined,
allowUnregister = false): UIEventSource<J> {
const self = this;
const stack = new Error().stack.split("\n");
@ -297,6 +299,7 @@ export class UIEventSource<T> {
const update = function () {
newSource.setData(f(self.data));
return allowUnregister && newSource._callbacks.length === 0
}
this.addCallback(update);