Shadow.js
Ext.Shadow = function(config){
Ext.apply(this, config);
if(typeof this.mode != 'string'){
this.mode = this.defaultMode;
}
var o = this.offset, a = {h: 0};
switch(this.mode.toLowerCase()){
case 'drop':
a.w = 0;
a.l = a.t = o;
break;
case 'sides':
a.w = (o*2);
a.l = -o;
a.t = o;
break;
case 'frame':
a.w = a.h = (o*2);
a.l = a.t = -o;
break;
};
this.adjusts = a;
};
Ext.Shadow.prototype = {
defaultMode: 'drop',
offset: 4,
show : function(target){
target = Ext.get(target);
if(!this.el){
this.el = Ext.Shadow.Pool.pull();
this.el.insertBefore(target);
}
this.el.setStyle('z-index', this.zIndex || parseInt(target.getStyle('z-index'), 10)-1);
this.realign(
target.getLeft(true),
target.getTop(true),
target.getWidth(),
target.getHeight()
);
this.el.dom.style.display = 'block';
},
isVisible : function(){
return this.el ? true : false;
},
/**
* Direct alignment when values are already available. Show must be called at least once before
* calling this method to ensure it is initialized.
*/
realign : function(l, t, w, h){
var a = this.adjusts, d = this.el.dom, s = d.style;
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;
var cn = d.childNodes;
cn[0].childNodes[1].style.width = (sw-12)+'px';
cn[1].childNodes[1].style.width = (sw-12)+'px';
cn[2].childNodes[1].style.width = (sw-12)+'px';
cn[1].style.height = (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 markup = '<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, markup));
if(Ext.isIE && !Ext.isIE7){
sh.setOpacity(.3);
}
}
return sh;
},
push : function(sh){
p.push(sh);
}
};
}();
yui-ext - Copyright © 2006 Jack Slocum. |
Yahoo! UI - Copyright © 2006 Yahoo! Inc.
All rights reserved.