Question

我有一个jQuery代码

function errorHandler() {
   alert('mozfullscreenerror');
}
document.documentElement.addEventListener('mozfullscreenerror', errorHandler, false);

// toggle full screen
function toggleFullScreen() {
  if (!document.fullscreenElement &&    // alternative standard method
      !document.mozFullScreenElement && !document.webkitFullscreenElement) {  // current working methods
    if (document.documentElement.requestFullscreen) {
      document.documentElement.requestFullscreen();
    } else if (document.documentElement.mozRequestFullScreen) {
      document.documentElement.mozRequestFullScreen();
    } else if (document.documentElement.webkitRequestFullscreen) {
      document.documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
    }
  } else {
    if (document.cancelFullScreen) {
      document.cancelFullScreen();
    } else if (document.mozCancelFullScreen) {
      document.mozCancelFullScreen();
    } else if (document.webkitCancelFullScreen) {
      document.webkitCancelFullScreen();
    }
  }
}

// keydown event handler
document.addEventListener('keydown', function(e) {
  if (e.keyCode == 13 || e.keyCode == 70) { // F or Enter key
    toggleFullScreen();
  }
}, false);

当我点击按钮时，全屏显示整个body

但我想在全屏显示div testfullscreen

我怎样才能做到这一点？

Answer 1

现在可以在最新版本的Chrome，Firefox和IE（11）中使用。

按照Zuul在这个帖子上的指示，我编辑了他的代码以包含IE11以及全屏选择页面上任何元素的选项。

JS：

function toggleFullScreen(elem) {
    // ## The below if statement seems to work better ## if ((document.fullScreenElement && document.fullScreenElement !== null) || (document.msfullscreenElement && document.msfullscreenElement !== null) || (!document.mozFullScreen && !document.webkitIsFullScreen)) {
    if ((document.fullScreenElement !== undefined && document.fullScreenElement === null) || (document.msFullscreenElement !== undefined && document.msFullscreenElement === null) || (document.mozFullScreen !== undefined && !document.mozFullScreen) || (document.webkitIsFullScreen !== undefined && !document.webkitIsFullScreen)) {
        if (elem.requestFullScreen) {
            elem.requestFullScreen();
        } else if (elem.mozRequestFullScreen) {
            elem.mozRequestFullScreen();
        } else if (elem.webkitRequestFullScreen) {
            elem.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
        } else if (elem.msRequestFullscreen) {
            elem.msRequestFullscreen();
        }
    } else {
        if (document.cancelFullScreen) {
            document.cancelFullScreen();
        } else if (document.mozCancelFullScreen) {
            document.mozCancelFullScreen();
        } else if (document.webkitCancelFullScreen) {
            document.webkitCancelFullScreen();
        } else if (document.msExitFullscreen) {
            document.msExitFullscreen();
        }
    }
}

HTML：

<input type="button" value="click to toggle fullscreen" onclick="toggleFullScreen(document.body)">

where＆＃34; document.body＆＃34;是你想要的任何元素。

另请注意，尝试从控制台运行这些全屏命令似乎无法在Chrome或IE上运行。我确实在Firefox中使用Firebug取得了成功。

另外需要注意的是，这些＆＃34;全屏＆＃34;命令没有垂直滚动条，您需要在CSS中指定：

*:fullscreen
*:-ms-fullscreen,
*:-webkit-full-screen,
*:-moz-full-screen {
   overflow: auto !important;
}

＆＃34;！important＆＃34;似乎是IE渲染它所必需的

使用jQuery点击按钮全屏

1 个答案: