/*
 * Copyright 2009, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


/**
 * @fileoverview This file contains misc functions to deal with
 *               fullscreen.
 */

tdl.provide('tdl.fullscreen');

/**
 * A module for misc.
 * @namespace
 */
tdl.fullscreen = tdl.fullscreen || {};

tdl.fullscreen.requestFullScreen = function(element) {
  if (element.requestFullscreen) {
    element.requestFullscreen();
  } else if (element.msRequestFullscreen) {
    element.msRequestFullscreen();
  } else if (element.webkitRequestFullScreen) {
    element.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
  } else if (element.mozRequestFullScreen) {
    element.mozRequestFullScreen();
  }
};

tdl.fullscreen.cancelFullScreen = function(element) {
  if (document.exitFullscreen) {
    document.exitFullscreen();
  } else if (document.msExitFullscreen) {
    document.msExitFullscreen();
  } else if (document.webkitCancelFullScreen) {
    document.webkitCancelFullScreen();
  } else if (document.mozCancelFullScreen) {
    document.mozCancelFullScreen();
  }
};

tdl.fullscreen.onFullScreenChange = function(element, callback) {
  var isFullScreen = function() {
    return document.fullscreenElement || document.mozFullScreenElement ||
           document.webkitFullscreenElement || document.msFullscreenElement ||
           document.mozFullScreen || document.webkitIsFullScreen;
  };
  document.addEventListener('fullscreenchange', function(event) {
      callback(isFullScreen());
    });
  element.addEventListener('webkitfullscreenchange', function(event) {
      callback(isFullScreen());
    });
  document.addEventListener('mozfullscreenchange', function(event) {
      callback(isFullScreen());
    });
};


