hugoWebsite/node_modules/rxjs/dist/esm5/internal/operators/windowTime.js

70 lines
2.9 KiB
JavaScript

import { Subject } from '../Subject';
import { asyncScheduler } from '../scheduler/async';
import { Subscription } from '../Subscription';
import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
import { arrRemove } from '../util/arrRemove';
import { popScheduler } from '../util/args';
import { executeSchedule } from '../util/executeSchedule';
export function windowTime(windowTimeSpan) {
var _a, _b;
var otherArgs = [];
for (var _i = 1; _i < arguments.length; _i++) {
otherArgs[_i - 1] = arguments[_i];
}
var scheduler = (_a = popScheduler(otherArgs)) !== null && _a !== void 0 ? _a : asyncScheduler;
var windowCreationInterval = (_b = otherArgs[0]) !== null && _b !== void 0 ? _b : null;
var maxWindowSize = otherArgs[1] || Infinity;
return operate(function (source, subscriber) {
var windowRecords = [];
var restartOnClose = false;
var closeWindow = function (record) {
var window = record.window, subs = record.subs;
window.complete();
subs.unsubscribe();
arrRemove(windowRecords, record);
restartOnClose && startWindow();
};
var startWindow = function () {
if (windowRecords) {
var subs = new Subscription();
subscriber.add(subs);
var window_1 = new Subject();
var record_1 = {
window: window_1,
subs: subs,
seen: 0,
};
windowRecords.push(record_1);
subscriber.next(window_1.asObservable());
executeSchedule(subs, scheduler, function () { return closeWindow(record_1); }, windowTimeSpan);
}
};
if (windowCreationInterval !== null && windowCreationInterval >= 0) {
executeSchedule(subscriber, scheduler, startWindow, windowCreationInterval, true);
}
else {
restartOnClose = true;
}
startWindow();
var loop = function (cb) { return windowRecords.slice().forEach(cb); };
var terminate = function (cb) {
loop(function (_a) {
var window = _a.window;
return cb(window);
});
cb(subscriber);
subscriber.unsubscribe();
};
source.subscribe(createOperatorSubscriber(subscriber, function (value) {
loop(function (record) {
record.window.next(value);
maxWindowSize <= ++record.seen && closeWindow(record);
});
}, function () { return terminate(function (consumer) { return consumer.complete(); }); }, function (err) { return terminate(function (consumer) { return consumer.error(err); }); }));
return function () {
windowRecords = null;
};
});
}
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