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First version of the newly restructured repository
This commit is contained in:
Giulio Cesare Solaroli
246
frontend/beta/js/YUI-extensions/Layer.js
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246
frontend/beta/js/YUI-extensions/Layer.js
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/**
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* @class YAHOO.ext.Layer
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* @extends YAHOO.ext.Element
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* An extended Element object that supports a shadow and shim, constrain to viewport and
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* automatic maintaining of shadow/shim positions.
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* @cfg {Boolean} shim False to disable the iframe shim in browsers which need one (defaults to true)
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* @cfg {String/Boolean} shadow True to create a shadow element with default class "ylayer-shadow" or
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* you can pass a string with a css class name. False turns off the shadow.
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* @cfg {Object} dh DomHelper object config to create element with (defaults to {tag: 'div', cls: 'ylayer'}).
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* @cfg {Boolean} constrain False to disable constrain to viewport (defaults to true)
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* @cfg {String} cls CSS class to add to the element
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* @cfg {Number} zindex Starting z-index (defaults to 11000!)
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* @cfg {Number} shadowOffset Offset for the shadow (defaults to 3)
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* @constructor
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* @param {Object} config
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* @param {String/HTMLElement} existingEl (optional) Uses an existing dom element. If the element is not found it creates it.
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*/
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YAHOO.ext.Layer = function(config, existingEl){
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config = config || {};
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var dh = YAHOO.ext.DomHelper;
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if(existingEl){
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this.dom = YAHOO.util.Dom.get(existingEl);
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}
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if(!this.dom){
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var o = config.dh || {tag: 'div', cls: 'ylayer'};
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this.dom = dh.insertBefore(document.body.firstChild, o);
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}
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if(config.cls){
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this.addClass(config.cls);
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}
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this.constrain = config.constrain !== false;
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this.visibilityMode = YAHOO.ext.Element.VISIBILITY;
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this.id = YAHOO.util.Dom.generateId(this.dom);
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var zindex = (config.zindex || parseInt(this.getStyle('z-index'), 10)) || 11000;
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this.setAbsolutePositioned(zindex);
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if(config.shadow){
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var cls = (typeof config.shadow == 'string' ? config.shadow : 'ylayer-shadow');
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this.shadow = dh.insertBefore(this.dom,
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{tag: 'div', cls: cls}, true);
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this.shadowOffset = config.shadowOffset || 3;
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this.shadow.setAbsolutePositioned(zindex-1);
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}else{
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this.shadowOffset = 0;
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}
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var b = YAHOO.ext.util.Browser;
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if(config.shim !== false && (b.isIE || (b.isGecko && b.isMac))){
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this.shim = this.createShim();
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this.shim.setOpacity(0);
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this.shim.setAbsolutePositioned(zindex-2);
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}
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this.hide();
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};
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YAHOO.extendX(YAHOO.ext.Layer, YAHOO.ext.Element, {
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sync : function(doShow){
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if(this.isVisible() && (this.shadow || this.shim)){
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var b = this.getBox();
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if(this.shim){
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if(doShow){
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this.shim.show();
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}
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this.shim.setBox(b);
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}
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if(this.shadow){
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if(doShow){
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this.shadow.show();
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}
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b.x += this.shadowOffset;
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b.y += this.shadowOffset;
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this.shadow.setBox(b);
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}
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}
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},
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syncLocalXY : function(){
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var l = this.getLeft(true);
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var t = this.getTop(true);
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if(this.shim){
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this.shim.setLeftTop(l, t);
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}
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if(this.shadow){
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this.shadow.setLeftTop(l + this.shadowOffset,
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t + this.shadowOffset);
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}
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},
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hideUnders : function(negOffset){
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if(this.shadow){
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this.shadow.hide();
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if(negOffset){
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this.shadow.setLeftTop(-10000,-10000);
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}
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}
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if(this.shim){
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this.shim.hide();
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if(negOffset){
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this.shim.setLeftTop(-10000,-10000);
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}
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}
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},
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constrainXY : function(){
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if(this.constrain){
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var vw = YAHOO.util.Dom.getViewportWidth(),
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vh = YAHOO.util.Dom.getViewportHeight();
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var xy = this.getXY();
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var x = xy[0], y = xy[1];
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var w = this.dom.offsetWidth+this.shadowOffset, h = this.dom.offsetHeight+this.shadowOffset;
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// only move it if it needs it
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var moved = false;
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// first validate right/bottom
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if(x + w > vw){
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x = vw - w;
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moved = true;
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}
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if(y + h > vh){
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y = vh - h;
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moved = true;
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}
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// then make sure top/left isn't negative
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if(x < 0){
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x = 0;
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moved = true;
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}
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if(y < 0){
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y = 0;
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moved = true;
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}
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if(moved){
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xy = [x, y];
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this.lastXY = xy;
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this.beforeAction();
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YAHOO.ext.Layer.superclass.setXY.call(this, xy);
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this.sync(true);
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}
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}
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},
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setVisible : function(v, a, d, c, e){
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if(this.lastXY){
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YAHOO.ext.Layer.superclass.setXY.call(this, this.lastXY);
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}
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if(a && v){
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var cb = function(){
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this.sync(true);
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if(c){
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c();
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}
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}.createDelegate(this);
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YAHOO.ext.Layer.superclass.setVisible.call(this, true, true, d, cb, e);
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}else{
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if(!v){
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this.hideUnders(true);
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}
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var cb = c;
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if(a){
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cb = function(){
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this.setLeftTop(-10000,-10000);
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if(c){
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c();
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}
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}.createDelegate(this);
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}
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YAHOO.ext.Layer.superclass.setVisible.call(this, v, a, d, cb, e);
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if(v){
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this.sync(true);
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}else if(!a){
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this.setLeftTop(-10000,-10000);
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}
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}
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},
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beforeAction : function(){
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if(this.shadow){
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this.shadow.hide();
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}
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},
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setXY : function(xy, a, d, c, e){
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this.lastXY = xy;
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this.beforeAction();
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var cb = this.createCB(c);
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YAHOO.ext.Layer.superclass.setXY.call(this, xy, a, d, cb, e);
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if(!a){
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cb();
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}
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},
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createCB : function(c){
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var el = this;
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return function(){
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el.constrainXY();
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el.sync(true);
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if(c){
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c();
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}
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};
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},
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setX : function(x, a, d, c, e){
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this.setXY([x, this.getY()], a, d, c, e);
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},
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setY : function(y, a, d, c, e){
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this.setXY([this.getX(), y], a, d, c, e);
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},
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setSize : function(w, h, a, d, c, e){
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this.beforeAction();
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var cb = this.createCB(c);
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YAHOO.ext.Layer.superclass.setSize.call(this, w, h, a, d, cb, e);
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if(!a){
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cb();
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}
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},
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setWidth : function(w, a, d, c, e){
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this.beforeAction();
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var cb = this.createCB(c);
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YAHOO.ext.Layer.superclass.setWidth.call(this, w, a, d, cb, e);
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if(!a){
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cb();
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}
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},
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setHeight : function(h, a, d, c, e){
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this.beforeAction();
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var cb = this.createCB(c);
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YAHOO.ext.Layer.superclass.setHeight.call(this, h, a, d, cb, e);
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if(!a){
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cb();
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}
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},
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setBounds : function(x, y, w, h, a, d, c, e){
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this.beforeAction();
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var cb = this.createCB(c);
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if(!a){
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YAHOO.ext.Layer.superclass.setXY.call(this, [x, y]);
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YAHOO.ext.Layer.superclass.setSize.call(this, w, h, a, d, cb, e);
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cb();
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}else{
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YAHOO.ext.Layer.superclass.setBounds.call(this, x, y, w, h, a, d, cb, e);
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}
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return this;
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}
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});
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