function makeThrottleListener<T>(
schedule: any,
currentTime: () => number,
period: number,
listener: Listener<any>,
state: any
) {
return {
next(value: T) {
const lastEventTime = state.lastEventTime;
const time = currentTime();
const timeSinceLastEvent = time - lastEventTime;
const throttleEvent = timeSinceLastEvent <= period;
if (throttleEvent) {
return;
}
schedule.next(listener, time, value);
state.lastEventTime = time;
},
error(error: any) {
listener.error(error);
},
complete() {
schedule.complete(listener, currentTime());
},
};
}
function recordListener(currentTime: () => number, outListener: Listener<any>) {
let entries: Array<any> = [];
outListener.next(entries);
return {
next(ev: any) {
entries = entries.concat({type: 'next', value: ev, time: currentTime()});
outListener.next(entries);
},
error(error: any) {
entries = entries.concat({type: 'error', time: currentTime(), error});
outListener.next(entries);
outListener.complete();
},
complete() {
entries = entries.concat({type: 'complete', time: currentTime()});
outListener.next(entries);
outListener.complete();
},
};
}
this.next = function next(event: Event) {
listener.next(event);
};
this.next = function next(event: Event) {
preventDefaultConditional(event, preventDefault);
listener.next(event);
};
this.next = function next(event: Event) {
event.preventDefault();
listener.next(event);
};