html实现iframe全屏的示例代码

  发布时间:2023-09-01 16:13:16   作者:慕云枫   我要评论
iframe是HTML5标准中提供的一种新标签,本文就介绍了html实现iframe全屏的示例代码,具有一定的参考价值,感兴趣的可以了解一下

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前言

html浏览器全屏操作,基于jquery
iframe全屏、指定标签全屏

实现

css

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/** 全屏*/
.lay-dbclick-box{
    position: relative;
    width: 100%;
    height: 100%;
}
.lay-dbclick-screen{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999999999999;
}
.lay-fullScreen{
    position: fixed;
    left: 0;
    top: 0;
    border-radius: 0;
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
    z-index: 9999999999999;
}

html
关键是lay-dbclick-box和lay-dbclick-screen,其中的iframe是内容

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<div class="lay-dbclick-box">
    <iframe src="" width="100%" height="100%" id="fullb" frameborder="0" allowfullscreen="" ></iframe>
    <div class="lay-dbclick-screen"></div>
</div>

js

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openFullScreen();
/**
 * -------------------------------------------------------------------------------------------------------
 * 通用全屏操作
 */
function openFullScreen(){
    // 双击全屏/退出全屏
    $(".lay-dbclick-screen").dblclick(function(){
        var val = $(this).parent().attr("lay-svalue");
        if(!val){
            $(this).parent().addClass("lay-fullScreen");
            $(this).parent().attr("lay-svalue", 1);
            fullScreen();
        }else{
            $(this).parent().removeClass("lay-fullScreen");
            $(this).parent().attr("lay-svalue", "");
            exitFullscreen();
        }
    })
    // 全屏事件监听
    document.addEventListener("fullscreenchange", function(){
        if (getFullscreenElement() == null) {
            console.log("-----------------[退出全屏]--------------")
           $(".lay-fullScreen").attr("lay-svalue", "");
            $(".lay-fullScreen").removeClass("lay-fullScreen");
            exitFullscreen();
        }else {
            console.log("-----------------[打开全屏]--------------")
        }
    })
}
/**
 * -------------------------------------------------------------------------------------------------------
 * 获取全屏状态
 */
function getFullscreenElement(){
    return (
        document['fullscreenElement'] ||
        document['mozFullScreenElement'] ||
        document['msFullScreenElement'] ||
        document['webkitFullscreenElement'] || null
    );
}
/**
 * -------------------------------------------------------------------------------------------------------
 * 全屏
 */
function fullScreen() {
    var element = document.documentElement;
    if (element.requestFullscreen) {
        element.requestFullscreen();
    } else if (element.msRequestFullscreen) {
        element.msRequestFullscreen();
    } else if (element.mozRequestFullScreen) {
        element.mozRequestFullScreen();
    } else if (element.webkitRequestFullscreen) {
        element.webkitRequestFullscreen();
    }
}
/**
 * --------------------------------------------------------------------------------------------------------
 * 退出全屏
 */
function exitFullscreen() {
    if (document.exitFullscreen) {
        document.exitFullscreen();
    } else if (document.msExitFullscreen) {
        document.msExitFullscreen();
    } else if (document.mozCancelFullScreen) {
        document.mozCancelFullScreen();
    } else if (document.webkitExitFullscreen) {
        document.webkitExitFullscreen();
    }
}

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