/*! - * Ext JS Library 3.0.3 - * Copyright(c) 2006-2009 Ext JS, LLC - * licensing@extjs.com - * http://www.extjs.com/license - */ -/** + + + +The source code + + + + +/** * @class Ext.TabPanel *A basic tab container. TabPanels can be used exactly like a standard {@link Ext.Panel} * for layout purposes, but also have special support for containing child Components @@ -226,9 +221,9 @@ var tabs = new Ext.TabPanel({ autoTabSelector : 'div.x-tab',
/** * @cfg {String/Number} activeTab A string id or the numeric index of the tab that should be initially - * activated on render (defaults to none). + * activated on render (defaults to undefined). */ - activeTab : null, + activeTab : undefined, /** * @cfg {Number} tabMargin The number of pixels of space to calculate into the sizing and scrolling of * tabs. If you change the margin in CSS, you will need to update this value so calculations are correct @@ -331,10 +326,11 @@ var tabs = new Ext.TabPanel({ tag:'ul', cls:'x-tab-strip x-tab-strip-'+this.tabPosition}}); var beforeEl = (this.tabPosition=='bottom' ? this.stripWrap : null); - this.stripSpacer = st.createChild({cls:'x-tab-strip-spacer'}, beforeEl); + st.createChild({cls:'x-tab-strip-spacer'}, beforeEl); this.strip = new Ext.Element(this.stripWrap.dom.firstChild); - this.edge = this.strip.createChild({tag:'li', cls:'x-tab-edge'}); + // create an empty span with class x-tab-strip-text to force the height of the header element when there's no tabs. + this.edge = this.strip.createChild({tag:'li', cls:'x-tab-edge', cn: [{tag: 'span', cls: 'x-tab-strip-text', cn: ' '}]}); this.strip.createChild({cls:'x-clear'}); this.body.addClass('x-tab-panel-body-'+this.tabPosition); @@ -364,9 +360,9 @@ new Ext.TabPanel({ itemTpl: new Ext.XTemplate( '<li class="{cls}" id="{id}" style="overflow:hidden">', '<tpl if="closable">', - '<a class="x-tab-strip-close" onclick="return false;"></a>', + '<a class="x-tab-strip-close"></a>', '</tpl>', - '<a class="x-tab-right" href="#" onclick="return false;" style="padding-left:6px">', + '<a class="x-tab-right" href="#" style="padding-left:6px">', '<em class="x-tab-left">', '<span class="x-tab-strip-inner">', '<img src="{src}" style="float:left;margin:3px 3px 0 0">', @@ -403,8 +399,8 @@ new Ext.TabPanel({ */ if(!this.itemTpl){ var tt = new Ext.Template( - '
Provides template arguments for rendering a tab selector item in the tab strip.
@@ -598,9 +613,15 @@ new Ext.TabPanel({ // private onRemove : function(c){ + var te = Ext.get(c.tabEl); + // check if the tabEl exists, it won't if the tab isn't rendered + if(te){ + te.select('a').removeAllListeners(); + Ext.destroy(te); + } Ext.TabPanel.superclass.onRemove.call(this, c); - Ext.destroy(Ext.get(this.getTabEl(c))); this.stack.remove(c); + delete c.tabEl; c.un('disable', this.onItemDisabled, this); c.un('enable', this.onItemEnabled, this); c.un('titlechange', this.onItemTitleChanged, this); @@ -613,10 +634,12 @@ new Ext.TabPanel({ }else if(this.items.getCount() > 0){ this.setActiveTab(0); }else{ - this.activeTab = null; + this.setActiveTab(null); } } - this.delegateUpdates(); + if(!this.destroying){ + this.delegateUpdates(); + } }, // private @@ -669,7 +692,8 @@ new Ext.TabPanel({ * @return {HTMLElement} The DOM node */ getTabEl : function(item){ - return document.getElementById(this.id + this.idDelimiter + this.getComponent(item).getItemId()); + var c = this.getComponent(item); + return c ? c.tabEl : null; }, // private @@ -735,10 +759,10 @@ new Ext.TabPanel({ // private autoSizeTabs : function(){ - var count = this.items.length; - var ce = this.tabPosition != 'bottom' ? 'header' : 'footer'; - var ow = this[ce].dom.offsetWidth; - var aw = this[ce].dom.clientWidth; + var count = this.items.length, + ce = this.tabPosition != 'bottom' ? 'header' : 'footer', + ow = this[ce].dom.offsetWidth, + aw = this[ce].dom.clientWidth; if(!this.resizeTabs || count < 1 || !aw){ // !aw for display:none return; @@ -748,10 +772,10 @@ new Ext.TabPanel({ this.lastTabWidth = each; var lis = this.strip.query("li:not([className^=x-tab-edge])"); for(var i = 0, len = lis.length; i < len; i++) { - var li = lis[i]; - var inner = Ext.fly(li).child('.x-tab-strip-inner', true); - var tw = li.offsetWidth; - var iw = inner.offsetWidth; + var li = lis[i], + inner = Ext.fly(li).child('.x-tab-strip-inner', true), + tw = li.offsetWidth, + iw = inner.offsetWidth; inner.style.width = (each - (tw-iw)) + 'px'; } }, @@ -782,7 +806,7 @@ new Ext.TabPanel({ */ setActiveTab : function(item){ item = this.getComponent(item); - if(!item || this.fireEvent('beforetabchange', this, item, this.activeTab) === false){ + if(this.fireEvent('beforetabchange', this, item, this.activeTab) === false){ return; } if(!this.rendered){ @@ -795,26 +819,27 @@ new Ext.TabPanel({ if(oldEl){ Ext.fly(oldEl).removeClass('x-tab-strip-active'); } - this.activeTab.fireEvent('deactivate', this.activeTab); } - var el = this.getTabEl(item); - Ext.fly(el).addClass('x-tab-strip-active'); - this.activeTab = item; - this.stack.add(item); - - this.layout.setActiveItem(item); - if(this.scrolling){ - this.scrollToTab(item, this.animScroll); + if(item){ + var el = this.getTabEl(item); + Ext.fly(el).addClass('x-tab-strip-active'); + this.activeTab = item; + this.stack.add(item); + + this.layout.setActiveItem(item); + if(this.scrolling){ + this.scrollToTab(item, this.animScroll); + } } - - item.fireEvent('activate', item); this.fireEvent('tabchange', this, item); } }, /** - * Gets the currently active tab. - * @return {Panel} The active tab + * Returns the Component which is the currently active tab. Note that before the TabPanel + * first activates a child Component, this method will return whatever was configured in the + * {@link #activeTab} config option. + * @return {BoxComponent} The currently active child Component if one is active, or the {@link #activeTab} config value. */ getActiveTab : function(){ return this.activeTab || null; @@ -832,15 +857,14 @@ new Ext.TabPanel({ // private autoScrollTabs : function(){ this.pos = this.tabPosition=='bottom' ? this.footer : this.header; - var count = this.items.length; - var ow = this.pos.dom.offsetWidth; - var tw = this.pos.dom.clientWidth; - - var wrap = this.stripWrap; - var wd = wrap.dom; - var cw = wd.offsetWidth; - var pos = this.getScrollPos(); - var l = this.edge.getOffsetsTo(this.stripWrap)[0] + pos; + var count = this.items.length, + ow = this.pos.dom.offsetWidth, + tw = this.pos.dom.clientWidth, + wrap = this.stripWrap, + wd = wrap.dom, + cw = wd.offsetWidth, + pos = this.getScrollPos(), + l = this.edge.getOffsetsTo(this.stripWrap)[0] + pos; if(!this.enableTabScroll || count < 1 || cw < 20){ // 20 to prevent display:none issues return; @@ -952,11 +976,14 @@ new Ext.TabPanel({ */ scrollToTab : function(item, animate){ - if(!item){ return; } - var el = this.getTabEl(item); - var pos = this.getScrollPos(), area = this.getScrollArea(); - var left = Ext.fly(el).getOffsetsTo(this.stripWrap)[0] + pos; - var right = left + el.offsetWidth; + if(!item){ + return; + } + var el = this.getTabEl(item), + pos = this.getScrollPos(), + area = this.getScrollArea(), + left = Ext.fly(el).getOffsetsTo(this.stripWrap)[0] + pos, + right = left + el.offsetWidth; if(left < pos){ this.scrollTo(left, animate); }else if(right > (pos + area)){ @@ -976,9 +1003,9 @@ new Ext.TabPanel({ var d = e.getWheelDelta()*this.wheelIncrement*-1; e.stopEvent(); - var pos = this.getScrollPos(); - var newpos = pos + d; - var sw = this.getScrollWidth()-this.getScrollArea(); + var pos = this.getScrollPos(), + newpos = pos + d, + sw = this.getScrollWidth()-this.getScrollArea(); var s = Math.max(0, Math.min(sw, newpos)); if(s != pos){ @@ -988,9 +1015,9 @@ new Ext.TabPanel({ // private onScrollRight : function(){ - var sw = this.getScrollWidth()-this.getScrollArea(); - var pos = this.getScrollPos(); - var s = Math.min(sw, pos + this.getScrollIncrement()); + var sw = this.getScrollWidth()-this.getScrollArea(), + pos = this.getScrollPos(), + s = Math.min(sw, pos + this.getScrollIncrement()); if(s != pos){ this.scrollTo(s, this.animScroll); } @@ -998,8 +1025,8 @@ new Ext.TabPanel({ // private onScrollLeft : function(){ - var pos = this.getScrollPos(); - var s = Math.max(0, pos - this.getScrollIncrement()); + var pos = this.getScrollPos(), + s = Math.max(0, pos - this.getScrollIncrement()); if(s != pos){ this.scrollTo(s, this.animScroll); } @@ -1014,17 +1041,9 @@ new Ext.TabPanel({ // private beforeDestroy : function() { - if(this.items){ - this.items.each(function(item){ - if(item && item.tabEl){ - Ext.get(item.tabEl).removeAllListeners(); - item.tabEl = null; - } - }, this); - } - if(this.strip){ - this.strip.removeAllListeners(); - } + Ext.destroy(this.leftRepeater, this.rightRepeater); + this.deleteMembers('strip', 'edge', 'scrollLeft', 'scrollRight', 'stripWrap'); + this.activeTab = null; Ext.TabPanel.superclass.beforeDestroy.apply(this); } @@ -1113,6 +1132,6 @@ Ext.TabPanel.AccessStack = function(){ } }; }; - - + + \ No newline at end of file