48 lines
1.7 KiB
JavaScript
48 lines
1.7 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.debounceTime = void 0;
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var async_1 = require("../scheduler/async");
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var lift_1 = require("../util/lift");
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var OperatorSubscriber_1 = require("./OperatorSubscriber");
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function debounceTime(dueTime, scheduler) {
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if (scheduler === void 0) { scheduler = async_1.asyncScheduler; }
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return lift_1.operate(function (source, subscriber) {
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var activeTask = null;
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var lastValue = null;
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var lastTime = null;
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var emit = function () {
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if (activeTask) {
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activeTask.unsubscribe();
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activeTask = null;
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var value = lastValue;
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lastValue = null;
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subscriber.next(value);
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}
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};
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function emitWhenIdle() {
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var targetTime = lastTime + dueTime;
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var now = scheduler.now();
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if (now < targetTime) {
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activeTask = this.schedule(undefined, targetTime - now);
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subscriber.add(activeTask);
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return;
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}
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emit();
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}
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source.subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function (value) {
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lastValue = value;
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lastTime = scheduler.now();
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if (!activeTask) {
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activeTask = scheduler.schedule(emitWhenIdle, dueTime);
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subscriber.add(activeTask);
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}
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}, function () {
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emit();
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subscriber.complete();
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}, undefined, function () {
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lastValue = activeTask = null;
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}));
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});
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}
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exports.debounceTime = debounceTime;
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//# sourceMappingURL=debounceTime.js.map
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