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Home  >  Article  >  Web Front-end  >  How to implement mask layer in HTML How to use mask layer in HTML

How to implement mask layer in HTML How to use mask layer in HTML

不言
不言Original
2018-06-05 16:29:175478browse

This article mainly introduces in detail the method of implementing a mask layer in HTML. Using a mask layer in a Web page can prevent repeated operations. So how to use a mask layer in HTML? Interested friends can refer to the use of mask layers in

Web pages to prevent repeated operations and prompt loading; you can also simulate pop-up modal windows.

Implementation idea: One p serves as the mask layer, and one p displays the loading dynamic GIF image. In the following sample code, it also shows how to call the display and hiding mask layer in the iframe subpage.

Sample code:

index.html

XML/HTML CodeCopy content to clipboard

<!DOCTYPE html>  
<html lang="zh-CN">  
<head>  
<meta charset="utf-8">  
<meta http-equiv="X-UA-Commpatible" content="IE=edge">  
<title>HTML遮罩层</title>  
<link rel="stylesheet" href="css/index.css">  
</head>  
<body>  
    <p class="header" id="header">  
        <p class="title-outer">  
            <span class="title">  
                HTML遮罩层使用   
            </span>  
        </p>  
    </p>  
    <p class="body" id="body">  
        <iframe id="iframeRight" name="iframeRight" width="100%" height="100%"  
            scrolling="no" frameborder="0"  
            style="border: 0px;margin: 0px; padding: 0px; width: 100%; height: 100%;overflow: hidden;"  
            onload="rightIFrameLoad(this)" src="body.html"></iframe>  
    </p>  
       
    <!-- 遮罩层p -->  
    <p id="overlay" class="overlay"></p>  
    <!-- Loading提示 p -->  
    <p id="loadingTip" class="loading-tip">  
        <img src="images/loading.gif" />  
    </p>  
       
    <!-- 模拟模态窗口p -->  
    <p class="modal" id="modalp"></p>  
       
    <script type=&#39;text/javascript&#39; src="js/jquery-1.10.2.js"></script>  
    <script type="text/javascript" src="js/index.js"></script>  
</body>  
</html>

index.css

##CSS CodeCopy content to clipboard

* {   
    margin: 0;   
    padding: 0;   
}   
  
html, body {   
    width: 100%;   
    height: 100%;   
    font-size: 14px;   
}   
  
p.header {   
    width: 100%;   
    height: 100px;   
    border-bottom: 1px dashed blue;   
}   
  
p.title-outer {   
    position: relative;   
    top: 50%;   
    height: 30px;   
}   
span.title {   
    text-align: left;   
    position: relative;   
    left: 3%;   
    top: -50%;   
    font-size: 22px;   
}   
  
p.body {   
    width: 100%;   
}   
.overlay {   
    position: absolute;   
    top: 0px;   
    left: 0px;   
    z-index: 10001;   
    display:none;   
    filter:alpha(opacity=60);   
    background-color: #777;   
    opacity: 0.5;   
    -moz-opacity: 0.5;   
}   
.loading-tip {   
    z-index: 10002;   
    position: fixed;   
    display:none;   
}   
.loading-tip img {   
    width:100px;   
    height:100px;   
}   
  
.modal {   
    position:absolute;   
    width: 600px;   
    height: 360px;   
    border: 1px solid rgba(0, 0, 0, 0.2);   
    box-shadow: 0px 3px 9px rgba(0, 0, 0, 0.5);   
    display: none;   
    z-index: 10003;   
    border-radius: 6px;   
}

index.js

JavaScript CodeCopy content to clipboard

function rightIFrameLoad(iframe) {   
    var pHeight = getWindowInnerHeight() - $(&#39;#header&#39;).height() - 5;   
       
    $(&#39;p.body&#39;).height(pHeight);   
    console.log(pHeight);   
       
}   
  
// 浏览器兼容 取得浏览器可视区高度   
function getWindowInnerHeight() {   
    var winHeight = window.innerHeight   
            || (document.documentElement && document.documentElement.clientHeight)   
            || (document.body && document.body.clientHeight);   
    return winHeight;   
       
}   
  
// 浏览器兼容 取得浏览器可视区宽度   
function getWindowInnerWidth() {   
    var winWidth = window.innerWidth   
            || (document.documentElement && document.documentElement.clientWidth)   
            || (document.body && document.body.clientWidth);   
    return winWidth;   
       
}   
  
/** 
 * 显示遮罩层  
 */  
function showOverlay() {   
    // 遮罩层宽高分别为页面内容的宽高   
    $(&#39;.overlay&#39;).css({&#39;height&#39;:$(document).height(),&#39;width&#39;:$(document).width()});   
    $(&#39;.overlay&#39;).show();   
}   
  
/** 
 * 显示Loading提示  
 */  
function showLoading() {   
    // 先显示遮罩层   
    showOverlay();   
    // Loading提示窗口居中   
    $("#loadingTip").css(&#39;top&#39;,   
            (getWindowInnerHeight() - $("#loadingTip").height()) / 2 + &#39;px&#39;);   
    $("#loadingTip").css(&#39;left&#39;,   
            (getWindowInnerWidth() - $("#loadingTip").width()) / 2 + &#39;px&#39;);   
               
    $("#loadingTip").show();   
    $(document).scroll(function() {   
        return false;   
    });   
}   
  
/** 
 * 隐藏Loading提示  
 */  
function hideLoading() {   
    $(&#39;.overlay&#39;).hide();   
    $("#loadingTip").hide();   
    $(document).scroll(function() {   
        return true;   
    });   
}   
  
/** 
 * 模拟弹出模态窗口p  
 * @param innerHtml 模态窗口HTML内容  
 */  
function showModal(innerHtml) {   
    // 取得显示模拟模态窗口用p   
    var dialog = $(&#39;#modalp&#39;);   
       
    // 设置内容   
    dialog.html(innerHtml);   
       
    // 模态窗口p窗口居中   
    dialog.css({   
        &#39;top&#39; : (getWindowInnerHeight() - dialog.height()) / 2 + &#39;px&#39;,   
        &#39;left&#39; : (getWindowInnerWidth() - dialog.width()) / 2 + &#39;px&#39;  
    });   
       
    // 窗口p圆角   
    dialog.find(&#39;.modal-container&#39;).css(&#39;border-radius&#39;,&#39;6px&#39;);   
       
    // 模态窗口关闭按钮事件   
    dialog.find(&#39;.btn-close&#39;).click(function(){   
        closeModal();   
    });   
       
    // 显示遮罩层   
    showOverlay();   
       
    // 显示遮罩层   
    dialog.show();   
}   
  
/** 
 * 模拟关闭模态窗口p  
 */  
function closeModal() {   
    $(&#39;.overlay&#39;).hide();   
    $(&#39;#modalp&#39;).hide();   
    $(&#39;#modalp&#39;).html(&#39;&#39;);   
}

body.html

XML/HTML Code Copy content to clipboard

<!DOCTYPE html>  
<html lang="zh-CN">  
<head>  
<meta charset="utf-8">  
<meta http-equiv="X-UA-Commpatible" content="IE=edge">  
<title>body 页面</title>  
<style type="text/css">  
* {   
    margin: 0;   
    padding: 0;   
}   
  
html, body {   
    width: 100%;   
    height: 100%;   
}   
  
.outer {   
    width: 200px;   
    height: 120px;   
    position: relative;   
    top: 50%;   
    left: 50%;   
}   
  
.inner {   
    width: 200px;   
    height: 120px;   
    position: relative;   
    top: -50%;   
    left: -50%;   
}   
  
.button {   
    width: 200px;   
    height: 40px;   
    position: relative;   
}   
    
.button#btnShowLoading {   
    top: 0;   
}   
  
.button#btnShowModal {   
    top: 30%;   
}   
  
</style>  
<script type="text/javascript">  
       
    function showOverlay() {   
        // 调用父窗口显示遮罩层和Loading提示   
        window.top.window.showLoading();   
  
        // 使用定时器模拟关闭Loading提示   
        setTimeout(function() {   
            window.top.window.hideLoading();   
        }, 3000);   
  
    }   
  
    function showModal() {   
        // 调用父窗口方法模拟弹出模态窗口   
        window.top.showModal($(&#39;#modalContent&#39;).html());   
    }   
       
</script>  
</head>  
<body>  
    <p class=&#39;outer&#39;>  
        <p class=&#39;inner&#39;>  
            <button id=&#39;btnShowLoading&#39; class=&#39;button&#39; onclick=&#39;showOverlay();&#39;>点击弹出遮罩层</button>  
            <button id=&#39;btnShowModal&#39; class=&#39;button&#39; onclick=&#39;showModal();&#39;>点击弹出模态窗口</button>  
        </p>  
    </p>  
       
    <!-- 模态窗口内容p，将本页面p内容设置到父窗口p上并模态显示 -->  
    <p id=&#39;modalContent&#39; style=&#39;display: none;&#39;>  
        <p class=&#39;modal-container&#39; style=&#39;width: 100%;height: 100%;background-color: white;&#39;>  
            <p style=&#39;width: 100%;height: 49px;position: relative;left: 50%;top: 50%;&#39;>  
                <span style=&#39;font-size: 36px; width: 100%; text-align:center; display: inline-block; position:inherit; left: -50%;top: -50%;&#39;>模态窗口1</span>  
            </p>  
            <button class=&#39;btn-close&#39; style=&#39;width: 100px; height: 30px; position: absolute; right: 30px; bottom: 20px;&#39;>关闭</button>  
        </p>  
    </p>  
    <script type=&#39;text/javascript&#39; src="js/jquery-1.10.2.js"></script>  
</body>  
</html>

Run result:

Initialization

Display mask layer And Loading prompt

Display mask layer and simulate pop-up modal window

The above is the entire content of this article, I hope it will be helpful to everyone's study.

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