本文实例讲述了jQuery实现的响应鼠标移动方向插件用法。分享给大家供大家参考,具体如下
本文实例讲述了jQuery实现的响应鼠标移动方向插件用法。分享给大家供大家参考,具体如下:
HTML代码如下:
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<meta name="Generator" content="EditPlus®">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<title>www.jb51.net jQuery响应鼠标移动</title>
<style>
*{margin:0;padding:0;}
ul,li{list-style:none;}
div{font-family:"Microsoft YaHei";}
html,body{width:100%; height:100%; background:#f2f2f2;}
ul{margin-left:50px;}
ul li{float:left;}
ul li .outer{width:300px; height:250px;}
ul li .outer .inner{width:300px; height:250px; background:rgba(0, 0, 0, .3);}
</style>
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
</head>
<body>
<ul>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/09.jpg" width="300px" height="250px" />
<div class="inner">
我是图片1
</div>
</div>
</li>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/010.jpg" width="300px" height="250px" />
<div class="inner">
我是图片2
</div>
</div>
</li>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/011.jpg" width="300px" height="250px" />
<div class="inner">
我是图片3
</div>
</div>
</li>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/012.jpg" width="300px" height="250px" />
<div class="inner">
我是图片4
</div>
</div>
</li>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/013.jpg" width="300px" height="250px" />
<div class="inner">
我是图片5
</div>
</div>
</li>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/014.jpg" width="300px" height="250px" />
<div class="inner">
我是图片6
</div>
</div>
</li>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/015.jpg" width="300px" height="250px" />
<div class="inner">
我是图片7
</div>
</div>
</li>
<li>
<div class="outer">
<img src="http://sandbox.runjs.cn/uploads/rs/253/e6wsbxul/016.jpg" width="300px" height="250px" />
<div class="inner">
我是图片8
</div>
</div>
</li>
</ul>
<script>
(function($){
$.fn.extend({
show : function(div){
var w = this.width(),
h = this.height(),
xpos = w/2,
ypos = h/2,
eventType = "",
direct = "";
this.css({"overflow" : "hidden", "position" : "relative"});
div.css({"position" : "absolute", "top" : this.width()});
this.on("mouseenter mouseleave", function(e){
var oe = e || event;
var x = oe.offsetX;
var y = oe.offsetY;
var angle = Math.atan((x - xpos)/(y - ypos)) * 180 / Math.PI;
if(angle > -45 && angle < 45 && y > ypos){
direct = "down";
}
if(angle > -45 && angle < 45 && y < ypos){
direct = "up";
}
if(((angle > -90 && angle <-45) || (angle >45 && angle <90)) && x > xpos){
direct = "right";
}
if(((angle > -90 && angle <-45) || (angle >45 && angle <90)) && x < xpos){
direct = "left";
}
move(e.type, direct)
});
function move(eventType, direct){
if(eventType == "mouseenter"){
switch(direct){
case "down":
div.css({"left": "0px", "top": h}).stop(true,true).animate({"top": "0px"}, "fast");
break;
case "up":
div.css({"left": "0px", "top": -h}).stop(true,true).animate({"top": "0px"}, "fast");
break;
case "right":
div.css({"left": w, "top": "0px"}).stop(true,true).animate({"left": "0px"}, "fast");
break;
case "left":
div.css({"left": -w, "top": "0px"}).stop(true,true).animate({"left": "0px"}, "fast");
break;
}
}else{
switch(direct){
case "down":
div.stop(true,true).animate({"top": h}, "fast");
break;
case "up":
div.stop(true,true).animate({"top": -h}, "fast");
break;
case "right":
div.stop(true,true).animate({"left": w}, "fast");
break;
case "left":
div.stop(true,true).animate({"left": -w}, "fast");
break;
}
}
}
}
});
})(jQuery)
$(".outer").each(function(i){
$(this).show($(".inner").eq(i));
});
</script>
</body>
</html>
其中控制响应鼠标方向的JS代码如下:
/*
*使用说明:
* $(".a").show($(".b"))
* a是展示层,b是遮罩层
* b在a的内部
*/
$(".outer").each(function(i){
$(this).show($(".inner").eq(i));
});
这里使用在线HTML/CSS/JavaScript代码运行工具:http://tools.jb51.net/code/HtmlJsRun运行代码,可得到如下效果:
完整实例代码点击此处本站下载。
jQuery 响应 鼠标移动方向 插件