b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
55 lines
1.4 KiB
JavaScript
Executable file
55 lines
1.4 KiB
JavaScript
Executable file
/* global BaseModule */
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'use strict';
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(function() {
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var Scheduler = function() {
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};
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Scheduler.SERVICES = [
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'schedule'
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];
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BaseModule.create(Scheduler, {
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name: 'Scheduler',
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DEBUG: false,
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_start: function() {
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this._queue = [];
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this.hold(); // Hold on start until the parent tells us to release.
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},
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hold: function() {
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this._busyState = true;
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},
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release: function() {
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if (this._busyState) {
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document.body.setAttribute('ready-state', 'visuallyLoaded');
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window.performance.mark('visuallyLoaded');
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}
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this._busyState = false;
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if (this._queue.length) {
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this.execute();
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}
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},
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execute: function() {
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var length = this._queue.length;
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this.debug('process operations in the schedule pool: ' + length);
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this._queue.forEach(function(operation) {
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operation.request();
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operation.resolve();
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});
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this._queue = [];
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},
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schedule: function(request) {
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return new Promise((resolve) => {
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if (this._busyState) {
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this.debug('busy loading, put the operation in the pool.');
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this._queue.push({
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resolve: resolve,
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request: request
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});
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} else {
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this.debug('not blocking, execute right away');
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request();
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resolve();
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}
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});
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}
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});
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}());
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