shadow-min.js

ext js demo ext学习资料

/*
 * Ext JS Library 1.1 RC 1
 * Copyright(c) 2006-2007, Ext JS, LLC.
 * [e-mail]
 * 
 * http://www.extjs.com/license
 */


Ext.Shadow=function(_1){Ext.apply(this,_1);if(typeof this.mode!="string"){this.mode=this.defaultMode;}var o=this.offset,a={h:0};var _4=Math.floor(this.offset/2);switch(this.mode.toLowerCase()){case"drop":a.w=0;a.l=a.t=o;a.t-=1;if(Ext.isIE){a.l-=this.offset+_4;a.t-=this.offset+_4;a.w-=_4;a.h-=_4;a.t+=1;}break;case"sides":a.w=(o*2);a.l=-o;a.t=o-1;if(Ext.isIE){a.l-=(this.offset-_4);a.t-=this.offset+_4;a.l+=1;a.w-=(this.offset-_4)*2;a.w-=_4+1;a.h-=1;}break;case"frame":a.w=a.h=(o*2);a.l=a.t=-o;a.t+=1;a.h-=2;if(Ext.isIE){a.l-=(this.offset-_4);a.t-=(this.offset-_4);a.l+=1;a.w-=(this.offset+_4+1);a.h-=(this.offset+_4);a.h+=1;}break;}this.adjusts=a;};Ext.Shadow.prototype={offset:4,defaultMode:"drop",show:function(_5){_5=Ext.get(_5);if(!this.el){this.el=Ext.Shadow.Pool.pull();if(this.el.dom.nextSibling!=_5.dom){this.el.insertBefore(_5);}}this.el.setStyle("z-index",this.zIndex||parseInt(_5.getStyle("z-index"),10)-1);if(Ext.isIE){this.el.dom.style.filter="progid:DXImageTransform.Microsoft.alpha(opacity=50) progid:DXImageTransform.Microsoft.Blur(pixelradius="+(this.offset)+")";}this.realign(_5.getLeft(true),_5.getTop(true),_5.getWidth(),_5.getHeight());this.el.dom.style.display="block";},isVisible:function(){return this.el?true:false;},realign:function(l,t,w,h){if(!this.el){return;}var a=this.adjusts,d=this.el.dom,s=d.style;var _d=0;s.left=(l+a.l)+"px";s.top=(t+a.t)+"px";var sw=(w+a.w),sh=(h+a.h),sws=sw+"px",shs=sh+"px";if(s.width!=sws||s.height!=shs){s.width=sws;s.height=shs;if(!Ext.isIE){var cn=d.childNodes;var sww=Math.max(0,(sw-12))+"px";cn[0].childNodes[1].style.width=sww;cn[1].childNodes[1].style.width=sww;cn[2].childNodes[1].style.width=sww;cn[1].style.height=Math.max(0,(sh-12))+"px";}}},hide:function(){if(this.el){this.el.dom.style.display="none";Ext.Shadow.Pool.push(this.el);delete this.el;}},setZIndex:function(z){this.zIndex=z;if(this.el){this.el.setStyle("z-index",z);}}};Ext.Shadow.Pool=function(){var p=[];var _16=Ext.isIE?"<div class=\"x-ie-shadow\"></div>":"<div class=\"x-shadow\"><div class=\"xst\"><div class=\"xstl\"></div><div class=\"xstc\"></div><div class=\"xstr\"></div></div><div class=\"xsc\"><div class=\"xsml\"></div><div class=\"xsmc\"></div><div class=\"xsmr\"></div></div><div class=\"xsb\"><div class=\"xsbl\"></div><div class=\"xsbc\"></div><div class=\"xsbr\"></div></div></div>";return{pull:function(){var sh=p.shift();if(!sh){sh=Ext.get(Ext.DomHelper.insertHtml("beforeBegin",document.body.firstChild,_16));sh.autoBoxAdjust=false;}return sh;},push:function(sh){p.push(sh);}};}();