timeout.js

/**
 * @license
 * Copyright 2018 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict';

(function() {

var TimeoutManager = function(logger) {
  var timers = [];
  var intervals = [];

  var getUniqueItem = function(container) {
    var id = 0;
    while (typeof(container[id]) != 'undefined')
      ++id;
    container[id] = {id: id};
    return container[id];
  };

  var timeoutHandler = function(id) {
    var func = timers[id].func;
    delete timers[id];
    func();
  };

  var intervalHandler = function(id) {
    var func = intervals[id].func;
    func();
  };

  this.setTimeout = function(func, timeout) {
    var timer = getUniqueItem(timers);
    timer.func = func;
    var uid = window.setTimeout(
        function() { timeoutHandler(timer.id); }, timeout);
    timer.uid = uid;
  };

  this.setInterval = function(func, timeout) {
    var interval = getUniqueItem(intervals);
    interval.func = func;
    var uid = window.setInterval(
	function() { intervalHandler(interval.id); }, timeout);
    interval.uid = uid;
  };

  this.clearAll = function() {
    for (var id = 0; id < timers.length; ++id)
      if (typeof(timers[id]) != 'undefined')
        window.clearTimeout(timers[id].uid);
    timers = [];

    for (var id = 0; id < intervals.length; ++id)
      if (typeof(intervals[id]) != 'undefined')
        window.clearInterval(intervals[id].uid);
    intervals = [];
  };
};

window.createTimeoutManager = function(logger) {
  return new TimeoutManager(logger);
};

})();