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

53 lines
2.0 KiB
JavaScript

import { __values } from "tslib";
import { Subject } from '../Subject';
import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
export function windowCount(windowSize, startWindowEvery) {
if (startWindowEvery === void 0) { startWindowEvery = 0; }
var startEvery = startWindowEvery > 0 ? startWindowEvery : windowSize;
return operate(function (source, subscriber) {
var windows = [new Subject()];
var starts = [];
var count = 0;
subscriber.next(windows[0].asObservable());
source.subscribe(createOperatorSubscriber(subscriber, function (value) {
var e_1, _a;
try {
for (var windows_1 = __values(windows), windows_1_1 = windows_1.next(); !windows_1_1.done; windows_1_1 = windows_1.next()) {
var window_1 = windows_1_1.value;
window_1.next(value);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (windows_1_1 && !windows_1_1.done && (_a = windows_1.return)) _a.call(windows_1);
}
finally { if (e_1) throw e_1.error; }
}
var c = count - windowSize + 1;
if (c >= 0 && c % startEvery === 0) {
windows.shift().complete();
}
if (++count % startEvery === 0) {
var window_2 = new Subject();
windows.push(window_2);
subscriber.next(window_2.asObservable());
}
}, function () {
while (windows.length > 0) {
windows.shift().complete();
}
subscriber.complete();
}, function (err) {
while (windows.length > 0) {
windows.shift().error(err);
}
subscriber.error(err);
}, function () {
starts = null;
windows = null;
}));
});
}
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