如何使用JavaScript使访问者的浏览器全屏显示,同时兼容IE、Firefox和Opera?


当前回答

这将在全屏显示你的窗口

注意:要使其工作,您需要来自http://code.jquery.com/jquery-2.1.1.min.js的Query

或者让javascript链接像这样。

<script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>

   <div id="demo-element">
        <span>Full Screen Mode Disabled</span>
        <button id="go-button">Enable Full Screen</button>
    </div>
    <script>
    function GoInFullscreen(element) {
        if(element.requestFullscreen)
            element.requestFullscreen();
        else if(element.mozRequestFullScreen)
            element.mozRequestFullScreen();
        else if(element.webkitRequestFullscreen)
            element.webkitRequestFullscreen();
        else if(element.msRequestFullscreen)
            element.msRequestFullscreen();
    }

    function GoOutFullscreen() {
        if(document.exitFullscreen)
            document.exitFullscreen();
        else if(document.mozCancelFullScreen)
            document.mozCancelFullScreen();
        else if(document.webkitExitFullscreen)
            document.webkitExitFullscreen();
        else if(document.msExitFullscreen)
            document.msExitFullscreen();
    }

    function IsFullScreenCurrently() {
        var full_screen_element = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement || null;

        if(full_screen_element === null)
            return false;
        else
            return true;
    }

    $("#go-button").on('click', function() {
        if(IsFullScreenCurrently())
            GoOutFullscreen();
        else
            GoInFullscreen($("#demo-element").get(0));
    });

    $(document).on('fullscreenchange webkitfullscreenchange mozfullscreenchange MSFullscreenChange', function() {
        if(IsFullScreenCurrently()) {
            $("#demo-element span").text('Full Screen Mode Enabled');
            $("#go-button").text('Disable Full Screen');
        }
        else {
            $("#demo-element span").text('Full Screen Mode Disabled');
            $("#go-button").text('Enable Full Screen');
        }
    });</script>

其他回答

这段代码还包括如何启用Internet Explorer 9的全屏,可能是更老的版本, 以及最新版本的谷歌Chrome。接受的答案也可以用于其他浏览器。

var el = document.documentElement
    , rfs = // for newer Webkit and Firefox
           el.requestFullscreen
        || el.webkitRequestFullScreen
        || el.mozRequestFullScreen
        || el.msRequestFullscreen
;
if(typeof rfs!="undefined" && rfs){
  rfs.call(el);
} else if(typeof window.ActiveXObject!="undefined"){
  // for Internet Explorer
  var wscript = new ActiveXObject("WScript.Shell");
  if (wscript!=null) {
     wscript.SendKeys("{F11}");
  }
}

来源:

Chrome全屏API(请注意,然而 requestFullscreen“只工作在”“[m]大多数UIEvents和鼠标事件,如点击和按下键等”,“所以它不能被恶意使用”) 如何使浏览器全屏使用F11键事件通过JavaScript

 <!DOCTYPE html>
    <html>
    <head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    </head>
    <body>
    
    <h2>Fullscreen with JavaScript</h2>
    <p>Click on the button to open the video in fullscreen mode.</p>
    <button onclick="openFullscreen();">Open Video in Fullscreen Mode</button>
    <p><strong>Tip:</strong> Press the "Esc" key to exit full screen.</p>
    
    <video width="100%" controls id="myvideo">
      <source src="rain.mp4" type="video/mp4">
      <source src="rain.ogg" type="video/ogg">
      Your browser does not support the video tag.
    </video>
    
    
    <script>
    var elem = document.getElementById("myvideo");
    function openFullscreen() {
      if (elem.requestFullscreen) {
        elem.requestFullscreen();
      } else if (elem.webkitRequestFullscreen) { /* Safari */
        elem.webkitRequestFullscreen();
      } else if (elem.msRequestFullscreen) { /* IE11 */
        elem.msRequestFullscreen();
      }
    }
    </script>
    
    <p>Note: Internet Explorer 10 and earlier versions do not support the msRequestFullscreen() method.</p>
    
    </body>
    </html>

来源:https://www.w3schools.com/howto/howto_js_fullscreen.asp

这是JavaScript中最接近全屏的效果:

<script type="text/javascript">
    window.onload = maxWindow;

    function maxWindow() {
        window.moveTo(0, 0);

        if (document.all) {
            top.window.resizeTo(screen.availWidth, screen.availHeight);
        }

        else if (document.layers || document.getElementById) {
            if (top.window.outerHeight < screen.availHeight || top.window.outerWidth < screen.availWidth) {
                top.window.outerHeight = screen.availHeight;
                top.window.outerWidth = screen.availWidth;
            }
        }
    }
</script> 

这个函数非常好用

function toggle_full_screen()
{
    if ((document.fullScreenElement && document.fullScreenElement !== null) || (!document.mozFullScreen && !document.webkitIsFullScreen))
    {
        if (document.documentElement.requestFullScreen){
            document.documentElement.requestFullScreen();
        }
        else if (document.documentElement.mozRequestFullScreen){ /* Firefox */
            document.documentElement.mozRequestFullScreen();
        }
        else if (document.documentElement.webkitRequestFullScreen){   /* Chrome, Safari & Opera */
            document.documentElement.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
        }
        else if (document.msRequestFullscreen){ /* IE/Edge */
            document.documentElement.msRequestFullscreen();
        }
    }
    else
    {
        if (document.cancelFullScreen){
            document.cancelFullScreen();
        }
        else if (document.mozCancelFullScreen){ /* Firefox */
            document.mozCancelFullScreen();
        }
        else if (document.webkitCancelFullScreen){   /* Chrome, Safari and Opera */
            document.webkitCancelFullScreen();
        }
        else if (document.msExitFullscreen){ /* IE/Edge */
            document.msExitFullscreen();
        }
    }
}

要使用它,只需调用:

toggle_full_screen();

函数f () {plr.requestFullscreen (); document.exitFullscreen ()};plr.requestFullscreen():document.exitFullscreen()}

<!DOCTYPE html><html><head>

<style>
body{background:#000}
#plr{position:relative;background:#fff;width:360px}
#vd{width:100%;background:grey}
button{width:48px;height:48px;border:0;background:grey}
</style>

</head><body>

<div id="plr">
<video id="vd" src="video.mp4"></video>
<button onclick="(plr.offsetWidth==360)?plr.requestFullscreen():document.exitFullscreen()">fs</button>
<button onclick="plr.requestFullscreen();document.exitFullscreen()">fs2</button>
</div>

</body></html>