利用浏览器全屏api实现js全屏

  

复制代码 代码如下:

  (function () {

  var fullScreenApi = {

  supportsFullScreen : false,

  isFullScreen : function () {

  return false;

  },

  requestFullScreen : function () {},

  cancelFullScreen : function () {},

  fullScreenEventName : '',

  prefix : ''

  },

  browserPrefixes = 'webkit moz o ms khtml'.split(' ');

  // check for native support

  if (typeof document.cancelFullScreen != 'undefined') {

  fullScreenApi.supportsFullScreen = true;

  } else {

  // check for fullscreen support by vendor prefix

  for (var i = 0, il = browserPrefixes.length; i < il; i++) {

  fullScreenApi.prefix = browserPrefixes[i];

  if (typeof document[fullScreenApi.prefix + 'CancelFullScreen'] != 'undefined') {

  fullScreenApi.supportsFullScreen = true;

  break;

  }

  }

  }

  // update methods to do something useful

  if (fullScreenApi.supportsFullScreen) {

  fullScreenApi.fullScreenEventName = fullScreenApi.prefix + 'fullscreenchange';

  fullScreenApi.isFullScreen = function () {

  switch (this.prefix) {

  case '':

  return document.fullScreen;

  case 'webkit':

  return document.webkitIsFullScreen;

  default:

  return document[this.prefix + 'FullScreen'];

  }

  }

  fullScreenApi.requestFullScreen = function (el) {

  return (this.prefix === '') ? el.requestFullScreen() : el[this.prefix + 'RequestFullScreen']();

  }

  fullScreenApi.cancelFullScreen = function (el) {

  return (this.prefix === '') ? document.cancelFullScreen() : document[this.prefix + 'CancelFullScreen']();

  }

  }

  // jQuery plugin

  if (typeof jQuery != 'undefined') {

  jQuery.fn.requestFullScreen = function () {

  return this.each(function () {

  if (fullScreenApi.supportsFullScreen) {

  fullScreenApi.requestFullScreen(this);

  }

  });

  };

  }

  // export api

  window.fullScreenApi = fullScreenApi;

  })();

  $(function(){

  $("#fullScreenBtn").click(function(){

  $("#fullScreen").requestFullScreen();

  });

  if(window.top != self){

  $("#tip").text("iframe里面不能演示该功能!请点击右下角的全屏查看!").show();

  }

  });

  if (!fullScreenApi.supportsFullScreen) {

  alert("您的破浏览器不支持全屏API哦,请换高版本的chrome或者firebox!");

  }

  

复制代码 代码如下:

  <!DOCTYPE html>

  <html>

  <head>

  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

  <title>javascript启用全屏</title>

  <script id="jquery_183" type="text/javascript" class="library" src=jquery-1.8.3.min.js"></script>

  </head>

  <body>

  <button id="fullScreenBtn">点击我进入全屏模式</button>

  <div id="fullScreen" class="fullScreen">

  <h1>

  我是全屏区域的内容!

  </h1>

  <div id="tip" style="display:none;">

  </div>

  </div>

  </body>

  </html>

  

复制代码 代码如下:

  body{

  background:#fff;

  }

  button{

  border:1px solid #ccc;

  cursor:pointer;

  display:block;

  margin:auto;

  position:relative;

  top:100px;

  }

  .fullScreen{

  padding-top:10%;

  text-align:center;

  background: none repeat scroll 0 0 #FFFFFF;

  }

  /* Mozilla proposal (dash) */

  .fullScreen:full-screen {

  width:100%;

  height:100%;

  }

  /* W3C proposal (no dash) */

  .fullScreen:fullscreen {

  width:100%;

  height:100%;

  }

  /* currently working vendor prefixes */

  .fullScreen:-webkit-full-screen, .fullScreen:-moz-full-screen {

  width:100%;

  height:100%;

  }

  :-webkit-full-screen{

  width:100%;

  height:100%;

  }