113 lines
4.5 KiB
JavaScript
113 lines
4.5 KiB
JavaScript
|
/** PURE_IMPORTS_START .._util_isNumeric,.._Observable,.._scheduler_async,.._util_isScheduler,.._util_isDate PURE_IMPORTS_END */
|
||
|
|
var __extends = (this && this.__extends) || function (d, b) {
|
||
|
|
for (var p in b)
|
||
|
|
if (b.hasOwnProperty(p))
|
||
|
|
d[p] = b[p];
|
||
|
|
function __() { this.constructor = d; }
|
||
|
|
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
|
||
|
|
};
|
||
|
|
import { isNumeric } from '../util/isNumeric';
|
||
|
|
import { Observable } from '../Observable';
|
||
|
|
import { async } from '../scheduler/async';
|
||
|
|
import { isScheduler } from '../util/isScheduler';
|
||
|
|
import { isDate } from '../util/isDate';
|
||
|
|
/**
|
||
|
|
* We need this JSDoc comment for affecting ESDoc.
|
||
|
|
* @extends {Ignored}
|
||
|
|
* @hide true
|
||
|
|
*/
|
||
|
|
export var TimerObservable = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
|
||
|
|
__extends(TimerObservable, _super);
|
||
|
|
function TimerObservable(dueTime, period, scheduler) {
|
||
|
|
if (dueTime === void 0) {
|
||
|
|
dueTime = 0;
|
||
|
|
}
|
||
|
|
_super.call(this);
|
||
|
|
this.period = -1;
|
||
|
|
this.dueTime = 0;
|
||
|
|
if (isNumeric(period)) {
|
||
|
|
this.period = Number(period) < 1 && 1 || Number(period);
|
||
|
|
}
|
||
|
|
else if (isScheduler(period)) {
|
||
|
|
scheduler = period;
|
||
|
|
}
|
||
|
|
if (!isScheduler(scheduler)) {
|
||
|
|
scheduler = async;
|
||
|
|
}
|
||
|
|
this.scheduler = scheduler;
|
||
|
|
this.dueTime = isDate(dueTime) ?
|
||
|
|
(+dueTime - this.scheduler.now()) :
|
||
|
|
dueTime;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Creates an Observable that starts emitting after an `initialDelay` and
|
||
|
|
* emits ever increasing numbers after each `period` of time thereafter.
|
||
|
|
*
|
||
|
|
* <span class="informal">Its like {@link interval}, but you can specify when
|
||
|
|
* should the emissions start.</span>
|
||
|
|
*
|
||
|
|
* <img src="./img/timer.png" width="100%">
|
||
|
|
*
|
||
|
|
* `timer` returns an Observable that emits an infinite sequence of ascending
|
||
|
|
* integers, with a constant interval of time, `period` of your choosing
|
||
|
|
* between those emissions. The first emission happens after the specified
|
||
|
|
* `initialDelay`. The initial delay may be a {@link Date}. By default, this
|
||
|
|
* operator uses the `async` IScheduler to provide a notion of time, but you
|
||
|
|
* may pass any IScheduler to it. If `period` is not specified, the output
|
||
|
|
* Observable emits only one value, `0`. Otherwise, it emits an infinite
|
||
|
|
* sequence.
|
||
|
|
*
|
||
|
|
* @example <caption>Emits ascending numbers, one every second (1000ms), starting after 3 seconds</caption>
|
||
|
|
* var numbers = Rx.Observable.timer(3000, 1000);
|
||
|
|
* numbers.subscribe(x => console.log(x));
|
||
|
|
*
|
||
|
|
* @example <caption>Emits one number after five seconds</caption>
|
||
|
|
* var numbers = Rx.Observable.timer(5000);
|
||
|
|
* numbers.subscribe(x => console.log(x));
|
||
|
|
*
|
||
|
|
* @see {@link interval}
|
||
|
|
* @see {@link delay}
|
||
|
|
*
|
||
|
|
* @param {number|Date} initialDelay The initial delay time to wait before
|
||
|
|
* emitting the first value of `0`.
|
||
|
|
* @param {number} [period] The period of time between emissions of the
|
||
|
|
* subsequent numbers.
|
||
|
|
* @param {Scheduler} [scheduler=async] The IScheduler to use for scheduling
|
||
|
|
* the emission of values, and providing a notion of "time".
|
||
|
|
* @return {Observable} An Observable that emits a `0` after the
|
||
|
|
* `initialDelay` and ever increasing numbers after each `period` of time
|
||
|
|
* thereafter.
|
||
|
|
* @static true
|
||
|
|
* @name timer
|
||
|
|
* @owner Observable
|
||
|
|
*/
|
||
|
|
TimerObservable.create = function (initialDelay, period, scheduler) {
|
||
|
|
if (initialDelay === void 0) {
|
||
|
|
initialDelay = 0;
|
||
|
|
}
|
||
|
|
return new TimerObservable(initialDelay, period, scheduler);
|
||
|
|
};
|
||
|
|
TimerObservable.dispatch = function (state) {
|
||
|
|
var index = state.index, period = state.period, subscriber = state.subscriber;
|
||
|
|
var action = this;
|
||
|
|
subscriber.next(index);
|
||
|
|
if (subscriber.closed) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
else if (period === -1) {
|
||
|
|
return subscriber.complete();
|
||
|
|
}
|
||
|
|
state.index = index + 1;
|
||
|
|
action.schedule(state, period);
|
||
|
|
};
|
||
|
|
/** @deprecated internal use only */ TimerObservable.prototype._subscribe = function (subscriber) {
|
||
|
|
var index = 0;
|
||
|
|
var _a = this, period = _a.period, dueTime = _a.dueTime, scheduler = _a.scheduler;
|
||
|
|
return scheduler.schedule(TimerObservable.dispatch, dueTime, {
|
||
|
|
index: index, period: period, subscriber: subscriber
|
||
|
|
});
|
||
|
|
};
|
||
|
|
return TimerObservable;
|
||
|
|
}(Observable));
|
||
|
|
//# sourceMappingURL=TimerObservable.js.map
|