This commit is contained in:
João Moreno
2020-07-01 10:51:55 +02:00
parent 3e492a3a5c
commit ffda3a18cc
5 changed files with 67 additions and 31 deletions
-12
View File
@@ -44,18 +44,6 @@ export function filterEvent<T>(event: Event<T>, filter: (e: T) => boolean): Even
return (listener: (e: T) => any, thisArgs?: any, disposables?: Disposable[]) => event(e => filter(e) && listener.call(thisArgs, e), null, disposables);
}
export function latchEvent<T>(event: Event<T>): Event<T> {
let firstCall = true;
let cache: T;
return filterEvent(event, value => {
let shouldEmit = firstCall || value !== cache;
firstCall = false;
cache = value;
return shouldEmit;
});
}
export function anyEvent<T>(...events: Event<T>[]): Event<T> {
return (listener: (e: T) => any, thisArgs?: any, disposables?: Disposable[]) => {
const result = combinedDisposable(events.map(event => event(i => listener.call(thisArgs, i))));