jquery制作弹出层带遮罩效果，点击阴影部分层消失

1 <a href="#" class="big-link" data-reveal-id="myModal" data-animation="fade">jquery点我弹出</a>
2 <div id="myModal" class="reveal-modal">
3             <h1>jquery弹出层</h1>
4             <p>很不错的效果</p>
5             <a class="close-reveal-modal">×</a>
6 </div>

 1 .reveal-modal-bg { position: fixed; height: 100%; width: 100%; z-index: 100; display: none; top: 0; left: 0; background:rgba(00, 00, 00, 0.8) }
 2     
 3     .reveal-modal { visibility: hidden; top: 150px; left: 50%; margin-left: -300px; width: 520px; position: absolute; z-index: 101; padding: 30px 40px 34px; -moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px; -moz-box-shadow: 0 0 10px rgba(0,0,0,.4); -webkit-box-shadow: 0 0 10px rgba(0,0,0,.4); -box-shadow: 0 0 10px rgba(0,0,0,.4); background-color: #FFF;         }
 4         
 5     .reveal-modal.small         { width: 200px; margin-left: -140px;}
 6     .reveal-modal.medium         { width: 400px; margin-left: -240px;}
 7     .reveal-modal.large         { width: 600px; margin-left: -340px;}
 8     .reveal-modal.xlarge         { width: 800px; margin-left: -440px;}
 9     
10     .reveal-modal .close-reveal-modal { font-size: 22px; line-height: 0.5; position: absolute; top: 8px; right: 11px; color: #333; text-shadow: 0 -1px 1px rbga(0,0,0,.6); font-weight: bold; cursor: pointer;         } 

<script type="text/javascript" src="jquery-1.4.4.min.js"></script>

  1 (function($) {
  2 
  3      
  4 /*---------------------------
  5  点击属性
  6 ----------------------------*/
  7 
  8     $(‘a[data-reveal-id]‘).live(‘click‘, function(e) {
  9         e.preventDefault();
 10         var modalLocation = $(this).attr(‘data-reveal-id‘);
 11         $(‘#‘+modalLocation).reveal($(this).data());
 12     });
 13 
 14 /*---------------------------
 15  扩展和执行方法
 16 ----------------------------*/
 17 
 18     $.fn.reveal = function(options) {
 19         
 20         
 21         var defaults = {  
 22             animation: ‘fadeAndPop‘, //动画效果
 23             animationspeed: 300, //效果时间
 24             closeonbackgroundclick: true, //如果你点击背景模态会关闭
 25             dismissmodalclass: ‘close-reveal-modal‘ //一个按钮或元素的类将关闭一个开放的模态
 26         }; 
 27         
 28         //Extend dem‘ options
 29         var options = $.extend({}, defaults, options); 
 30     
 31         return this.each(function() {
 32         
 33 /*---------------------------
 34 全局变量
 35 
 36 ----------------------------*/
 37             var modal = $(this),
 38                 topMeasure  = parseInt(modal.css(‘top‘)),
 39                 topOffset = modal.height() + topMeasure,
 40                   locked = false,
 41                 modalBG = $(‘.reveal-modal-bg‘);
 42 
 43 /*---------------------------
 44 创建背景
 45 ----------------------------*/
 46             if(modalBG.length == 0) {
 47                 modalBG = $(‘<div class="reveal-modal-bg" />‘).insertAfter(modal);
 48             }            
 49      
 50 /*---------------------------
 51  打开、关闭动画效果
 52 ----------------------------*/
 53             //Entrance Animations
 54             modal.bind(‘reveal:open‘, function () {
 55               modalBG.unbind(‘click.modalEvent‘);
 56                 $(‘.‘ + options.dismissmodalclass).unbind(‘click.modalEvent‘);
 57                 if(!locked) {
 58                     lockModal();
 59                     if(options.animation == "fadeAndPop") {
 60                         modal.css({‘top‘: $(document).scrollTop()-topOffset, ‘opacity‘ : 0, ‘visibility‘ : ‘visible‘});
 61                         modalBG.fadeIn(options.animationspeed/2);
 62                         modal.delay(options.animationspeed/2).animate({
 63                             "top": $(document).scrollTop()+topMeasure + ‘px‘,
 64                             "opacity" : 1
 65                         }, options.animationspeed,unlockModal());                    
 66                     }
 67                     if(options.animation == "fade") {
 68                         modal.css({‘opacity‘ : 0, ‘visibility‘ : ‘visible‘, ‘top‘: $(document).scrollTop()+topMeasure});
 69                         modalBG.fadeIn(options.animationspeed/2);
 70                         modal.delay(options.animationspeed/2).animate({
 71                             "opacity" : 1
 72                         }, options.animationspeed,unlockModal());                    
 73                     } 
 74                     if(options.animation == "none") {
 75                         modal.css({‘visibility‘ : ‘visible‘, ‘top‘:$(document).scrollTop()+topMeasure});
 76                         modalBG.css({"display":"block"});    
 77                         unlockModal()                
 78                     }
 79                 }
 80                 modal.unbind(‘reveal:open‘);
 81             });     
 82 
 83             //关闭
 84             modal.bind(‘reveal:close‘, function () {
 85               if(!locked) {
 86                     lockModal();
 87                     if(options.animation == "fadeAndPop") {
 88                         modalBG.delay(options.animationspeed).fadeOut(options.animationspeed);
 89                         modal.animate({
 90                             "top":  $(document).scrollTop()-topOffset + ‘px‘,
 91                             "opacity" : 0
 92                         }, options.animationspeed/2, function() {
 93                             modal.css({‘top‘:topMeasure, ‘opacity‘ : 1, ‘visibility‘ : ‘hidden‘});
 94                             unlockModal();
 95                         });                    
 96                     }      
 97                     if(options.animation == "fade") {
 98                         modalBG.delay(options.animationspeed).fadeOut(options.animationspeed);
 99                         modal.animate({
100                             "opacity" : 0
101                         }, options.animationspeed, function() {
102                             modal.css({‘opacity‘ : 1, ‘visibility‘ : ‘hidden‘, ‘top‘ : topMeasure});
103                             unlockModal();
104                         });                    
105                     }      
106                     if(options.animation == "none") {
107                         modal.css({‘visibility‘ : ‘hidden‘, ‘top‘ : topMeasure});
108                         modalBG.css({‘display‘ : ‘none‘});    
109                     }        
110                 }
111                 modal.unbind(‘reveal:close‘);
112             });     
113        
114 /*---------------------------
115 添加开放和关闭监听器
116 
117 ----------------------------*/
118             //立即开模态10:42:50
119         modal.trigger(‘reveal:open‘)
120             
121             //关闭
122             var closeButton = $(‘.‘ + options.dismissmodalclass).bind(‘click.modalEvent‘, function () {
123               modal.trigger(‘reveal:close‘)
124             });
125             
126             if(options.closeonbackgroundclick) {
127                 modalBG.css({"cursor":"pointer"})
128                 modalBG.bind(‘click.modalEvent‘, function () {
129                   modal.trigger(‘reveal:close‘)
130                 });
131             }
132             $(‘body‘).keyup(function(e) {
133                 if(e.which===27){ modal.trigger(‘reveal:close‘); } // 27 is the keycode for the Escape key
134             });
135             
136             
137 /*---------------------------
138  锁定动画
139 ----------------------------*/
140             function unlockModal() { 
141                 locked = false;
142             }
143             function lockModal() {
144                 locked = true;
145             }    
146             
147         });//each call
148     }//orbit plugin call
149 })(jQuery);