Created
July 28, 2010 07:08
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/* | |
**************图片预加载插件****************** | |
///作者:没剑(2008-06-23) http://regedit.cnblogs.com | |
///参数设置: | |
scaling 是否等比例自动缩放 | |
width 图片最大高 | |
height 图片最大宽 | |
loadpic 加载中的图片路径 | |
*/ | |
jQuery.fn.LoadImage=function(scaling,width,height,loadpic){ | |
if(loadpic==null)loadpic="load3.gif"; | |
return this.each(function(){ | |
var t=$(this); | |
var src=$(this).attr("src") | |
var img=new Image(); | |
//alert("Loading...") | |
img.src=src; | |
//自动缩放图片 | |
var autoScaling=function(){ | |
if(scaling){ | |
max = Math.max(img.width/width, img.height/height); | |
if(max>1)t.css({'width':img.width/max,'height':img.height/max}); | |
} | |
} | |
//处理ff下会自动读取缓存图片 | |
if(img.complete){ | |
//alert("getToCache!"); | |
autoScaling(); | |
return; | |
} | |
$(this).attr("src",""); | |
var loading=$("<img alt=\"加载中...\" title=\"图片加载中...\" src=\""+loadpic+"\" />"); | |
t.hide(); | |
t.after(loading); | |
$(img).load(function(){ | |
autoScaling(); | |
loading.remove(); | |
t.attr("src",this.src); | |
t.show(); | |
//alert("finally!") | |
}); | |
}); | |
} |
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