remoting/webapp/crd/js/event_handlers.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 'use strict';
   6
   7 /**
   8  * @param {Array<{event: string, id: string,
   9  *     fn: function(Event):void}>} actions Array of actions to register.
  10  */
  11 function registerEventListeners(actions) {
  12   for (var i = 0; i < actions.length; ++i) {
  13     var action = actions[i];
  14     registerEventListener(action.id, action.event, action.fn);
  15   }
  16 }
  17
  18 /**
  19  * Add an event listener to the specified element.
  20  * @param {string} id Id of element.
  21  * @param {string} eventname Event name.
  22  * @param {function(Event):void} fn Event handler.
  23  */
  24 function registerEventListener(id, eventname, fn) {
  25   var element = document.getElementById(id);
  26   if (element) {
  27     element.addEventListener(eventname, fn, false);
  28   } else {
  29     console.error('Could not set ' + eventname +
  30         ' event handler on element ' + id +
  31         ': element not found.');
  32   }
  33 }