javascript jQuery插件練習(xí)

2019-11-21 01:30:42

字體：大中小

供稿：網(wǎng)友

簡化后的插件：
SimplePlugin.htm：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" > 
<head> 
<title>簡化后的插件</title> 
<script type="text/ecmascript" src="../js/jquery-1.2.6.js"></script> 
<script type="text/ecmascript" src="../js/jquery.SimplePlugin.js"></script> 
<script type="text/ecmascript"> 
$(function() { 
$("input").click(function(){ 
$("body").dialog(); 
}) 
}); 
function f(){ 
$("body").find("#MaskID").hide(1000); 
$("body").find("#DivDialog").hide(1000); 
} 
</script> 
</head> 
<body> 
<input type="button" value="hi plugin" /> 
</body> 
</html> 

jquery.SimplePlugin.js：

復(fù)制代碼代碼如下:

$.fn.dialog=function(){ 
this.MaskDiv=function()//自定義一個函數(shù) 
{ 
//創(chuàng)建遮罩背景,這里沒有設(shè)置透明度，為了簡單。zIndex決定了遮罩。 
$("body").append("<div ID=MaskID></div>"); 
$("body").find("#MaskID").width("888px").height("666px") 
.css({position:"absolute",top:"0px",left:"0px",background:"#ccc",zIndex:"10000"}); 
} 
this.MaskDiv();//調(diào)用自定義函數(shù)。 
$("body").append("<div ID=DivDialog style='display:none'><ul><li>提示</li></ul><input type='button' value='close' onclick='f();' /></div>"); 
var obj=$("body").find("#DivDialog"); 
obj.width("200px").height("200px"); 
obj.css({position:"absolute",top:"100px",left:"100px",background:"#FFCC66",zIndex:"10001"}).show("slow"); 

return this; 
} 

完整的插件：
myplugin.html：

復(fù)制代碼代碼如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>練習(xí)jQuery插件</title> 
<script type="text/ecmascript" src="../js/jquery-1.2.6.js"></script> 
<script type="text/ecmascript" src="../js/jquery.firstplugin.js"> </script> 
<script type="text/ecmascript" src="../js/jquery.dialog.js"></script> 
<style type='text/css'> 
*{padding:0; margin:0} /*此行樣式一定要加，不然可能會引起B(yǎng)UG出現(xiàn)。*/ 

#MyDiv{ 
position:absolute; 
width:200px; 
height:200px; 
font-size:12px; 
background:#666; 
border:1px solid #000; 
z-index:10001; 
display:none; 
text-align:center; 
} 
</style> 
<script type="text/ecmascript"> 
$(document).ready(function() { 
$("input").click(function(){ 
$("body").dialog(); 
}) 
}) 
</script> 
</head> 

<body> 
<div> 
<input type="button" value="hi plugin" /> 
</div> 
</body> 
</html> 

jquery.dialog.js：

復(fù)制代碼代碼如下:

// JScript 文件 
$.fn.dialog=function(){ 
this.MaskDiv=function()//自定義一個函數(shù) 
{ 
var wnd = $(window), doc = $(document); 
if(wnd.height() > doc.height()){ //當(dāng)高度少于一屏 
wHeight = wnd.height(); 
}else{//當(dāng)高度大于一屏 
wHeight = doc.height(); 
} 
//創(chuàng)建遮罩背景 
$("body").append("<div ID=MaskID></div>"); 
$("body").find("#MaskID").width(wnd.width()).height(wHeight) 
.css({position:"absolute",top:"0px",left:"0px",background:"#ccc",filter:"Alpha(opacity=90);",opacity:"0.3",zIndex:"10000"}); 
} 
this.sPosition=function(obj)//自定義一個帶參數(shù)的函數(shù) 
{ 
var MyDiv_w = parseInt(obj.width()); 
var MyDiv_h = parseInt(obj.height()); 

var width =parseInt($(document).width()); 
var height = parseInt($(window).height()); 
var left = parseInt($(document).scrollLeft()); 
var top = parseInt($(document).scrollTop()); 

var Div_topposition = top + (height / 2) - (MyDiv_h / 2); //計(jì)算上邊距 
var Div_leftposition = left + (width / 2) - (MyDiv_w / 2); //計(jì)算左邊距 
return Array(Div_topposition,Div_leftposition); 
} 
this.MaskDiv(); 
$("body").append("<div ID=DivDialog style='display:none'><ul><li>提示</li></ul></div>"); 
var obj=$("body").find("#DivDialog"); 
obj.width("200px").height("200px"); 
PosT=this.sPosition(obj); 
obj.css({position:"absolute",top:PosT[0]+"px",left:PosT[1]+"px",background:"#FFCC66",zIndex:"10001"}).show("slow"); 
return this; 
} 