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This commit is contained in:
Pieter Vander Vennet 2020-07-20 13:28:45 +02:00
parent 5c9fb293e9
commit dcf5d24002
10 changed files with 140 additions and 608 deletions
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25
UI/UIEventSource.ts
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@ -27,15 +27,32 @@ export class UIEventSource<T>{
}
}
public map<J>(f: ((T) => J),
extraSources : UIEventSource<any>[] = []): UIEventSource<J> {
const self = this;
public static flatten<X>(source: UIEventSource<UIEventSource<X>>, possibleSources: UIEventSource<any>[]): UIEventSource<X> {
const sink = new UIEventSource<X>(source.data?.data);
source.addCallback((latestData) => {
sink.setData(latestData?.data);
});
for (const possibleSource of possibleSources) {
possibleSource.addCallback(() => {
sink.setData(source.data?.data);
})
}
return sink;
}
public map<J>(f: ((T) => J),
extraSources: UIEventSource<any>[] = []): UIEventSource<J> {
const self = this;
const update = function () {
newSource.setData(f(self.data));
newSource.ping();
}
this.addCallback(update);
for (const extraSource of extraSources) {
extraSource.addCallback(update);