work.suroh.tk/node_modules/rxjs/scheduler/AsyncScheduler.js

51 lines
1.7 KiB
JavaScript

"use strict";
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 __());
};
var Scheduler_1 = require('../Scheduler');
var AsyncScheduler = (function (_super) {
__extends(AsyncScheduler, _super);
function AsyncScheduler() {
_super.apply(this, arguments);
this.actions = [];
/**
* A flag to indicate whether the Scheduler is currently executing a batch of
* queued actions.
* @type {boolean}
*/
this.active = false;
/**
* An internal ID used to track the latest asynchronous task such as those
* coming from `setTimeout`, `setInterval`, `requestAnimationFrame`, and
* others.
* @type {any}
*/
this.scheduled = undefined;
}
AsyncScheduler.prototype.flush = function (action) {
var actions = this.actions;
if (this.active) {
actions.push(action);
return;
}
var error;
this.active = true;
do {
if (error = action.execute(action.state, action.delay)) {
break;
}
} while (action = actions.shift()); // exhaust the scheduler queue
this.active = false;
if (error) {
while (action = actions.shift()) {
action.unsubscribe();
}
throw error;
}
};
return AsyncScheduler;
}(Scheduler_1.Scheduler));
exports.AsyncScheduler = AsyncScheduler;
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