jquery制作弹出层带遮罩效果，点击阴影部分层消失

jquery制作弹出层带遮罩效果，点击阴影部分层消失。

整体还是比较简单的。

HTML代码很简单

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

定义弹出层的样式

 .reveal-modal-bg { position: fixed; height: 100%; width: 100%; z-index:; display: none; top:; left:; background:rgba(00, 00, 00, 0.8) }

     .reveal-modal { visibility: hidden; top: 150px; left: 50%; margin-left: -300px; width: 520px; position: absolute; z-index:; 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;         }

     .reveal-modal.small         { width: 200px; margin-left: -140px;}
     .reveal-modal.medium         { width: 400px; margin-left: -240px;}
     .reveal-modal.large         { width: 600px; margin-left: -340px;}
     .reveal-modal.xlarge         { width: 800px; margin-left: -440px;}

     .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;         } 

重点是js

引用jquery库是必不可少的。

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

最后是js

 (function($) {

 /*---------------------------
  点击属性
 ----------------------------*/

     $('a[data-reveal-id]').live('click', function(e) {
         e.preventDefault();
         var modalLocation = $(this).attr('data-reveal-id');
         $('#'+modalLocation).reveal($(this).data());
     });

 /*---------------------------
  扩展和执行方法
 ----------------------------*/

     $.fn.reveal = function(options) {

         var defaults = {
             animation: 'fadeAndPop', //动画效果
             animationspeed: 300, //效果时间
             closeonbackgroundclick: true, //如果你点击背景模态会关闭
             dismissmodalclass: 'close-reveal-modal' //一个按钮或元素的类将关闭一个开放的模态
         }; 

         //Extend dem' options
         var options = $.extend({}, defaults, options); 

         return this.each(function() {

 /*---------------------------
 全局变量

 ----------------------------*/
             var modal = $(this),
                 topMeasure  = parseInt(modal.css('top')),
                 topOffset = modal.height() + topMeasure,
                   locked = false,
                 modalBG = $('.reveal-modal-bg');

 /*---------------------------
 创建背景
 ----------------------------*/
             if(modalBG.length == 0) {
                 modalBG = $('<div class="reveal-modal-bg" />').insertAfter(modal);
             }            

 /*---------------------------
  打开、关闭动画效果
 ----------------------------*/
             //Entrance Animations
             modal.bind('reveal:open', function () {
               modalBG.unbind('click.modalEvent');
                 $('.' + options.dismissmodalclass).unbind('click.modalEvent');
                 if(!locked) {
                     lockModal();
                     if(options.animation == "fadeAndPop") {
                         modal.css({'top': $(document).scrollTop()-topOffset, 'opacity' : 0, 'visibility' : 'visible'});
                         modalBG.fadeIn(options.animationspeed/2);
                         modal.delay(options.animationspeed/2).animate({
                             "top": $(document).scrollTop()+topMeasure + 'px',
                             "opacity" : 1
                         }, options.animationspeed,unlockModal());
                     }
                     if(options.animation == "fade") {
                         modal.css({'opacity' : 0, 'visibility' : 'visible', 'top': $(document).scrollTop()+topMeasure});
                         modalBG.fadeIn(options.animationspeed/2);
                         modal.delay(options.animationspeed/2).animate({
                             "opacity" : 1
                         }, options.animationspeed,unlockModal());
                     }
                     if(options.animation == "none") {
                         modal.css({'visibility' : 'visible', 'top':$(document).scrollTop()+topMeasure});
                         modalBG.css({"display":"block"});
                         unlockModal()
                     }
                 }
                 modal.unbind('reveal:open');
             });     

             //关闭
             modal.bind('reveal:close', function () {
               if(!locked) {
                     lockModal();
                     if(options.animation == "fadeAndPop") {
                         modalBG.delay(options.animationspeed).fadeOut(options.animationspeed);
                         modal.animate({
                             "top":  $(document).scrollTop()-topOffset + 'px',
                             "opacity" : 0
                         }, options.animationspeed/2, function() {
                             modal.css({'top':topMeasure, 'opacity' : 1, 'visibility' : 'hidden'});
                             unlockModal();
                         });
                     }
                     if(options.animation == "fade") {
                         modalBG.delay(options.animationspeed).fadeOut(options.animationspeed);
                         modal.animate({
                             "opacity" : 0
                         }, options.animationspeed, function() {
                             modal.css({'opacity' : 1, 'visibility' : 'hidden', 'top' : topMeasure});
                             unlockModal();
                         });
                     }
                     if(options.animation == "none") {
                         modal.css({'visibility' : 'hidden', 'top' : topMeasure});
                         modalBG.css({'display' : 'none'});
                     }
                 }
                 modal.unbind('reveal:close');
             });     

 /*---------------------------
 添加开放和关闭监听器

 ----------------------------*/
             //立即开模态10:42:50
         modal.trigger('reveal:open')

             //关闭
             var closeButton = $('.' + options.dismissmodalclass).bind('click.modalEvent', function () {
               modal.trigger('reveal:close')
             });

             if(options.closeonbackgroundclick) {
                 modalBG.css({"cursor":"pointer"})
                 modalBG.bind('click.modalEvent', function () {
                   modal.trigger('reveal:close')
                 });
             }
             $('body').keyup(function(e) {
                 if(e.which===27){ modal.trigger('reveal:close'); } // 27 is the keycode for the Escape key
             });

 /*---------------------------
  锁定动画
 ----------------------------*/
             function unlockModal() {
                 locked = false;
             }
             function lockModal() {
                 locked = true;
             }    

         });//each call
     }//orbit plugin call
 })(jQuery);

OK,完成了，看下效果图。

demo