在HTML中实现和使用遮罩层_html/css_WEB-ITnose-HTML Tutorial-php.cn

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在HTML中实现和使用遮罩层_html/css_WEB-ITnose

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Jun 24, 2016 am 11:22 AM

Web页面中使用遮罩层，可防止重复操作，提示loading；也可以模拟弹出模态窗口。

实现思路：一个DIV作为遮罩层，一个DIV显示loading动态GIF图片。在下面的示例代码中，同时展示了如何在iframe子页面中调用显示和隐藏遮罩层。

示例代码：

index.html

 1 <!DOCTYPE html> 2 <html lang="zh-CN"> 3 <head> 4 <meta charset="utf-8"> 5 <meta http-equiv="X-UA-Commpatible" content="IE=edge"> 6 <title>HTML遮罩层</title> 7 <link rel="stylesheet" href="css/index.css"> 8 </head> 9 <body>10     <div class="header" id="header">11         <div class="title-outer">12             <span class="title">13                 HTML遮罩层使用14             </span>15         </div>16     </div>17     <div class="body" id="body">18         <iframe id="iframeRight" name="iframeRight" width="100%" height="100%"19             scrolling="no" frameborder="0"20             style="border: 0px;margin: 0px; padding: 0px; width: 100%; height: 100%;overflow: hidden;"21             onload="rightIFrameLoad(this)" src="body.html"></iframe>22     </div>23     24     <!-- 遮罩层DIV -->25     <div id="overlay" class="overlay"></div>26     <!-- Loading提示 DIV -->27     <div id="loadingTip" class="loading-tip">28         <img  src="/static/imghwm/default1.png"  data-src="images/loading.gif"  class="lazy" / alt="在HTML中实现和使用遮罩层_html/css_WEB-ITnose" >29     </div>30     31     <!-- 模拟模态窗口DIV -->32     <div class="modal" id="modalDiv"></div>33     34     <script type='text/javascript' src="js/jquery-1.10.2.js"></script>35     <script type="text/javascript" src="js/index.js"></script>36 </body>37 </html>

index.css

 1 * { 2     margin: 0; 3     padding: 0; 4 } 5  6 html, body { 7     width: 100%; 8     height: 100%; 9     font-size: 14px;10 }11 12 div.header {13     width: 100%;14     height: 100px;15     border-bottom: 1px dashed blue;16 }17 18 div.title-outer {19     position: relative;20     top: 50%;21     height: 30px;22 }23 span.title {24     text-align: left;25     position: relative;26     left: 3%;27     top: -50%;28     font-size: 22px;29 }30 31 div.body {32     width: 100%;33 }34 .overlay {35     position: absolute;36     top: 0px;37     left: 0px;38     z-index: 10001;39     display:none;40     filter:alpha(opacity=60);41     background-color: #777;42     opacity: 0.5;43     -moz-opacity: 0.5;44 }45 .loading-tip {46     z-index: 10002;47     position: fixed;48     display:none;49 }50 .loading-tip img {51     width:100px;52     height:100px;53 }54 55 .modal {56     position:absolute;57     width: 600px;58     height: 360px;59     border: 1px solid rgba(0, 0, 0, 0.2);60     box-shadow: 0px 3px 9px rgba(0, 0, 0, 0.5);61     display: none;62     z-index: 10003;63     border-radius: 6px;64 }

index.js

  1 function rightIFrameLoad(iframe) {  2     var pHeight = getWindowInnerHeight() - $('#header').height() - 5;  3       4     $('div.body').height(pHeight);  5     console.log(pHeight);  6       7 }  8   9 // 浏览器兼容 取得浏览器可视区高度 10 function getWindowInnerHeight() { 11     var winHeight = window.innerHeight 12             || (document.documentElement && document.documentElement.clientHeight) 13             || (document.body && document.body.clientHeight); 14     return winHeight; 15      16 } 17  18 // 浏览器兼容 取得浏览器可视区宽度 19 function getWindowInnerWidth() { 20     var winWidth = window.innerWidth 21             || (document.documentElement && document.documentElement.clientWidth) 22             || (document.body && document.body.clientWidth); 23     return winWidth; 24      25 } 26  27 /** 28  * 显示遮罩层 29  */ 30 function showOverlay() { 31     // 遮罩层宽高分别为页面内容的宽高 32     $('.overlay').css({'height':$(document).height(),'width':$(document).width()}); 33     $('.overlay').show(); 34 } 35  36 /** 37  * 显示Loading提示 38  */ 39 function showLoading() { 40     // 先显示遮罩层 41     showOverlay(); 42     // Loading提示窗口居中 43     $("#loadingTip").css('top', 44             (getWindowInnerHeight() - $("#loadingTip").height()) / 2 + 'px'); 45     $("#loadingTip").css('left', 46             (getWindowInnerWidth() - $("#loadingTip").width()) / 2 + 'px'); 47              48     $("#loadingTip").show(); 49     $(document).scroll(function() { 50         return false; 51     }); 52 } 53  54 /** 55  * 隐藏Loading提示 56  */ 57 function hideLoading() { 58     $('.overlay').hide(); 59     $("#loadingTip").hide(); 60     $(document).scroll(function() { 61         return true; 62     }); 63 } 64  65 /** 66  * 模拟弹出模态窗口DIV 67  * @param innerHtml 模态窗口HTML内容 68  */ 69 function showModal(innerHtml) { 70     // 取得显示模拟模态窗口用DIV 71     var dialog = $('#modalDiv'); 72      73     // 设置内容 74     dialog.html(innerHtml); 75      76     // 模态窗口DIV窗口居中 77     dialog.css({ 78         'top' : (getWindowInnerHeight() - dialog.height()) / 2 + 'px', 79         'left' : (getWindowInnerWidth() - dialog.width()) / 2 + 'px' 80     }); 81      82     // 窗口DIV圆角 83     dialog.find('.modal-container').css('border-radius','6px'); 84      85     // 模态窗口关闭按钮事件 86     dialog.find('.btn-close').click(function(){ 87         closeModal(); 88     }); 89      90     // 显示遮罩层 91     showOverlay(); 92      93     // 显示遮罩层 94     dialog.show(); 95 } 96  97 /** 98  * 模拟关闭模态窗口DIV 99  */100 function closeModal() {101     $('.overlay').hide();102     $('#modalDiv').hide();103     $('#modalDiv').html('');104 }

body.html

 1 <!DOCTYPE html> 2 <html lang="zh-CN"> 3 <head> 4 <meta charset="utf-8"> 5 <meta http-equiv="X-UA-Commpatible" content="IE=edge"> 6 <title>body 页面</title> 7 <style type="text/css"> 8 * { 9     margin: 0;10     padding: 0;11 }12 13 html, body {14     width: 100%;15     height: 100%;16 }17 18 .outer {19     width: 200px;20     height: 120px;21     position: relative;22     top: 50%;23     left: 50%;24 }25 26 .inner {27     width: 200px;28     height: 120px;29     position: relative;30     top: -50%;31     left: -50%;32 }33 34 .button {35     width: 200px;36     height: 40px;37     position: relative;38 }39  40 .button#btnShowLoading {41     top: 0;42 }43 44 .button#btnShowModal {45     top: 30%;46 }47 48 </style>49 <script type="text/javascript">50     51     function showOverlay() {52         // 调用父窗口显示遮罩层和Loading提示53         window.top.window.showLoading();54 55         // 使用定时器模拟关闭Loading提示56         setTimeout(function() {57             window.top.window.hideLoading();58         }, 3000);59 60     }61 62     function showModal() {63         // 调用父窗口方法模拟弹出模态窗口64         window.top.showModal($('#modalContent').html());65     }66     67 </script>68 </head>69 <body>70     <div class='outer'>71         <div class='inner'>72             <button id='btnShowLoading' class='button' onclick='showOverlay();'>点击弹出遮罩层</button>73             <button id='btnShowModal' class='button' onclick='showModal();'>点击弹出模态窗口</button>74         </div>75     </div>76     77     <!-- 模态窗口内容DIV，将本页面DIV内容设置到父窗口DIV上并模态显示 -->78     <div id='modalContent' style='display: none;'>79         <div class='modal-container' style='width: 100%;height: 100%;background-color: white;'>80             <div style='width: 100%;height: 49px;position: relative;left: 50%;top: 50%;'>81                 <span style='font-size: 36px; width: 100%; text-align:center; display: inline-block; position:inherit; left: -50%;top: -50%;'>模态窗口1</span>82             </div>83             <button class='btn-close' style='width: 100px; height: 30px; position: absolute; right: 30px; bottom: 20px;'>关闭</button>84         </div>85     </div>86     <script type='text/javascript' src="js/jquery-1.10.2.js"></script>87 </body>88 </html>

运行结果

初始化

显示遮罩层和Loading提示

显示遮罩层和模拟弹出模态窗口

END

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