windowToggle.js
2.62 KB
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import { __values } from "tslib";
import { Subject } from '../Subject';
import { Subscription } from '../Subscription';
import { operate } from '../util/lift';
import { innerFrom } from '../observable/innerFrom';
import { createOperatorSubscriber } from './OperatorSubscriber';
import { noop } from '../util/noop';
import { arrRemove } from '../util/arrRemove';
export function windowToggle(openings, closingSelector) {
return operate(function (source, subscriber) {
var windows = [];
var handleError = function (err) {
while (0 < windows.length) {
windows.shift().error(err);
}
subscriber.error(err);
};
innerFrom(openings).subscribe(createOperatorSubscriber(subscriber, function (openValue) {
var window = new Subject();
windows.push(window);
var closingSubscription = new Subscription();
var closeWindow = function () {
arrRemove(windows, window);
window.complete();
closingSubscription.unsubscribe();
};
var closingNotifier;
try {
closingNotifier = innerFrom(closingSelector(openValue));
}
catch (err) {
handleError(err);
return;
}
subscriber.next(window.asObservable());
closingSubscription.add(closingNotifier.subscribe(createOperatorSubscriber(subscriber, closeWindow, noop, handleError)));
}, noop));
source.subscribe(createOperatorSubscriber(subscriber, function (value) {
var e_1, _a;
var windowsCopy = windows.slice();
try {
for (var windowsCopy_1 = __values(windowsCopy), windowsCopy_1_1 = windowsCopy_1.next(); !windowsCopy_1_1.done; windowsCopy_1_1 = windowsCopy_1.next()) {
var window_1 = windowsCopy_1_1.value;
window_1.next(value);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (windowsCopy_1_1 && !windowsCopy_1_1.done && (_a = windowsCopy_1.return)) _a.call(windowsCopy_1);
}
finally { if (e_1) throw e_1.error; }
}
}, function () {
while (0 < windows.length) {
windows.shift().complete();
}
subscriber.complete();
}, handleError, function () {
while (0 < windows.length) {
windows.shift().unsubscribe();
}
}));
});
}
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