欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页

嵌套元素的mouseover和mouseout事件 mouseovermouseoutjquery 

程序员文章站 2022-07-12 21:34:24
...
今天在帮别人解决一个关于mouseover和mouseout问题的时候发现了一个原来没想到的问题,斗胆share下,高手莫喷。。

问题:有嵌套的三层div。div111最外层,div222中间层,div333最内层。
效果:当鼠标位于div的上方时,相应层的mouseover触发,当属性从div的上方离开时,相应层的mouseout触发。

此段代码同时也解决了mouseover和mouseout由于子元素的冒泡而产生的一些问题。不知道有没更好的方案?

<!DOCTYPE html>        
<html>        
    <head>        
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />        
        <title>test</title>        
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>        
        <style>        
            #div111{        
                width:200px; height :200px ; background :red; margin :100px auto auto 100px; border: 2px solid white;   
            }        
            #div222{        
                width:100px; height :100px; background :yellow; border: 2px solid white; 
            }        
            #div333{        
                width:50px; height :50px; background :blue; border: 2px solid white; 
            }
        </style>        
    </head>        
    <body>        
        <div id="div111">         
            <div id="div222">         
                <div id="div333"></div>         
            </div>         
        </div>    
        <div id="log"></div>         
        <script type ="text/javascript" >         
            function mouse_over(event){    
                var elem = $(event.currentTarget),  
                    fromElem = $(event.relatedTarget);  
                if(elem.has(fromElem).length === 0 || !fromElem.is(elem)){
                	elem.css('border-color', 'green');
                    log(elem.attr('id'), event.type);
                }  
            };      
            function mouse_out(event){    
                var elem = $(event.currentTarget),  
                    toElem = $(event.relatedTarget);
                if(elem.has(toElem).length === 0 || !toElem.is(elem)){
                	elem.css('border-color', 'white');
                    log(elem.attr('id'), event.type);
                }  
            };
            function log(id, type){
            	$("#log").append("<div><span>" + id + "触发了<strong><font color='red'>" + type + "</font></strong>事件</span></div>");  
            }
            $('#div111').mouseover(mouse_over);      
            $('#div222').mouseover(mouse_over);      
            $('#div333').mouseover(mouse_over);      
            $('#div111').mouseout(mouse_out);      
            $('#div222').mouseout(mouse_out);      
            $('#div333').mouseout(mouse_out);  
        </script>         
    </body>        
</html>