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4 years ago
import { Subject } from '../Subject';
import { Subscription } from '../Subscription';
import { OuterSubscriber } from '../OuterSubscriber';
import { subscribeToResult } from '../util/subscribeToResult';
export function windowToggle(openings, closingSelector) {
return (source) => source.lift(new WindowToggleOperator(openings, closingSelector));
}
class WindowToggleOperator {
constructor(openings, closingSelector) {
this.openings = openings;
this.closingSelector = closingSelector;
}
call(subscriber, source) {
return source.subscribe(new WindowToggleSubscriber(subscriber, this.openings, this.closingSelector));
}
}
class WindowToggleSubscriber extends OuterSubscriber {
constructor(destination, openings, closingSelector) {
super(destination);
this.openings = openings;
this.closingSelector = closingSelector;
this.contexts = [];
this.add(this.openSubscription = subscribeToResult(this, openings, openings));
}
_next(value) {
const { contexts } = this;
if (contexts) {
const len = contexts.length;
for (let i = 0; i < len; i++) {
contexts[i].window.next(value);
}
}
}
_error(err) {
const { contexts } = this;
this.contexts = null;
if (contexts) {
const len = contexts.length;
let index = -1;
while (++index < len) {
const context = contexts[index];
context.window.error(err);
context.subscription.unsubscribe();
}
}
super._error(err);
}
_complete() {
const { contexts } = this;
this.contexts = null;
if (contexts) {
const len = contexts.length;
let index = -1;
while (++index < len) {
const context = contexts[index];
context.window.complete();
context.subscription.unsubscribe();
}
}
super._complete();
}
_unsubscribe() {
const { contexts } = this;
this.contexts = null;
if (contexts) {
const len = contexts.length;
let index = -1;
while (++index < len) {
const context = contexts[index];
context.window.unsubscribe();
context.subscription.unsubscribe();
}
}
}
notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {
if (outerValue === this.openings) {
let closingNotifier;
try {
const { closingSelector } = this;
closingNotifier = closingSelector(innerValue);
}
catch (e) {
return this.error(e);
}
const window = new Subject();
const subscription = new Subscription();
const context = { window, subscription };
this.contexts.push(context);
const innerSubscription = subscribeToResult(this, closingNotifier, context);
if (innerSubscription.closed) {
this.closeWindow(this.contexts.length - 1);
}
else {
innerSubscription.context = context;
subscription.add(innerSubscription);
}
this.destination.next(window);
}
else {
this.closeWindow(this.contexts.indexOf(outerValue));
}
}
notifyError(err) {
this.error(err);
}
notifyComplete(inner) {
if (inner !== this.openSubscription) {
this.closeWindow(this.contexts.indexOf(inner.context));
}
}
closeWindow(index) {
if (index === -1) {
return;
}
const { contexts } = this;
const context = contexts[index];
const { window, subscription } = context;
contexts.splice(index, 1);
window.complete();
subscription.unsubscribe();
}
}
//# sourceMappingURL=windowToggle.js.map