3 * Copyright(c) 2006-2010 Sencha Inc.
5 * http://www.sencha.com/license
9 * <p>A basic tab container. TabPanels can be used exactly like a standard {@link Ext.Panel}
10 * for layout purposes, but also have special support for containing child Components
11 * (<tt>{@link Ext.Container#items items}</tt>) that are managed using a
12 * {@link Ext.layout.CardLayout CardLayout layout manager}, and displayed as separate tabs.</p>
14 * <b>Note:</b> By default, a tab's close tool <i>destroys</i> the child tab Component
15 * and all its descendants. This makes the child tab Component, and all its descendants <b>unusable</b>. To enable
16 * re-use of a tab, configure the TabPanel with <b><code>{@link #autoDestroy autoDestroy: false}</code></b>.
18 * <p><b><u>TabPanel header/footer elements</u></b></p>
19 * <p>TabPanels use their {@link Ext.Panel#header header} or {@link Ext.Panel#footer footer} element
20 * (depending on the {@link #tabPosition} configuration) to accommodate the tab selector buttons.
21 * This means that a TabPanel will not display any configured title, and will not display any
22 * configured header {@link Ext.Panel#tools tools}.</p>
23 * <p>To display a header, embed the TabPanel in a {@link Ext.Panel Panel} which uses
24 * <b><tt>{@link Ext.Container#layout layout:'fit'}</tt></b>.</p>
26 * <p><b><u>Tab Events</u></b></p>
27 * <p>There is no actual tab class — each tab is simply a {@link Ext.BoxComponent Component}
28 * such as a {@link Ext.Panel Panel}. However, when rendered in a TabPanel, each child Component
29 * can fire additional events that only exist for tabs and are not available from other Components.
30 * These events are:</p>
31 * <div><ul class="mdetail-params">
32 * <li><tt><b>{@link Ext.Panel#activate activate}</b></tt> : Fires when this Component becomes
33 * the active tab.</li>
34 * <li><tt><b>{@link Ext.Panel#deactivate deactivate}</b></tt> : Fires when the Component that
35 * was the active tab becomes deactivated.</li>
36 * <li><tt><b>{@link Ext.Panel#beforeclose beforeclose}</b></tt> : Fires when the user clicks on the close tool of a closeable tab.
37 * May be vetoed by returning <code>false</code> from a handler.</li>
38 * <li><tt><b>{@link Ext.Panel#close close}</b></tt> : Fires a closeable tab has been closed by the user.</li>
40 * <p><b><u>Creating TabPanels from Code</u></b></p>
41 * <p>TabPanels can be created and rendered completely in code, as in this example:</p>
43 var tabs = new Ext.TabPanel({
44 renderTo: Ext.getBody(),
55 * <p><b><u>Creating TabPanels from Existing Markup</u></b></p>
56 * <p>TabPanels can also be rendered from pre-existing markup in a couple of ways.</p>
57 * <div><ul class="mdetail-params">
59 * <li>Pre-Structured Markup</li>
60 * <div class="sub-desc">
61 * <p>A container div with one or more nested tab divs with class <tt>'x-tab'</tt> can be rendered entirely
62 * from existing markup (See the {@link #autoTabs} example).</p>
65 * <li>Un-Structured Markup</li>
66 * <div class="sub-desc">
67 * <p>A TabPanel can also be rendered from markup that is not strictly structured by simply specifying by id
68 * which elements should be the container and the tabs. Using this method tab content can be pulled from different
69 * elements within the page by id regardless of page structure. For example:</p>
71 var tabs = new Ext.TabPanel({
75 {contentEl:'tab1', title:'Tab 1'},
76 {contentEl:'tab2', title:'Tab 2'}
80 // Note that the tabs do not have to be nested within the container (although they can be)
81 <div id="my-tabs"></div>
82 <div id="tab1" class="x-hide-display">A simple tab</div>
83 <div id="tab2" class="x-hide-display">Another one</div>
85 * Note that the tab divs in this example contain the class <tt>'x-hide-display'</tt> so that they can be rendered
86 * deferred without displaying outside the tabs. You could alternately set <tt>{@link #deferredRender} = false </tt>
87 * to render all content tabs on page load.
94 * @param {Object} config The configuration options
97 Ext.TabPanel = Ext.extend(Ext.Panel, {
99 * @cfg {Boolean} layoutOnTabChange
100 * Set to true to force a layout of the active tab when the tab is changed. Defaults to false.
101 * See {@link Ext.layout.CardLayout}.<code>{@link Ext.layout.CardLayout#layoutOnCardChange layoutOnCardChange}</code>.
104 * @cfg {String} tabCls <b>This config option is used on <u>child Components</u> of ths TabPanel.</b> A CSS
105 * class name applied to the tab strip item representing the child Component, allowing special
106 * styling to be applied.
109 * @cfg {Boolean} deferredRender
110 * <p><tt>true</tt> by default to defer the rendering of child <tt>{@link Ext.Container#items items}</tt>
111 * to the browsers DOM until a tab is activated. <tt>false</tt> will render all contained
112 * <tt>{@link Ext.Container#items items}</tt> as soon as the {@link Ext.layout.CardLayout layout}
113 * is rendered. If there is a significant amount of content or a lot of heavy controls being
114 * rendered into panels that are not displayed by default, setting this to <tt>true</tt> might
115 * improve performance.</p>
116 * <br><p>The <tt>deferredRender</tt> property is internally passed to the layout manager for
117 * TabPanels ({@link Ext.layout.CardLayout}) as its {@link Ext.layout.CardLayout#deferredRender}
118 * configuration value.</p>
119 * <br><p><b>Note</b>: leaving <tt>deferredRender</tt> as <tt>true</tt> means that the content
120 * within an unactivated tab will not be available. For example, this means that if the TabPanel
121 * is within a {@link Ext.form.FormPanel form}, then until a tab is activated, any Fields within
122 * unactivated tabs will not be rendered, and will therefore not be submitted and will not be
123 * available to either {@link Ext.form.BasicForm#getValues getValues} or
124 * {@link Ext.form.BasicForm#setValues setValues}.</p>
126 deferredRender : true,
128 * @cfg {Number} tabWidth The initial width in pixels of each new tab (defaults to 120).
132 * @cfg {Number} minTabWidth The minimum width in pixels for each tab when {@link #resizeTabs} = true (defaults to 30).
136 * @cfg {Boolean} resizeTabs True to automatically resize each tab so that the tabs will completely fill the
137 * tab strip (defaults to false). Setting this to true may cause specific widths that might be set per tab to
138 * be overridden in order to fit them all into view (although {@link #minTabWidth} will always be honored).
142 * @cfg {Boolean} enableTabScroll True to enable scrolling to tabs that may be invisible due to overflowing the
143 * overall TabPanel width. Only available with tabPosition:'top' (defaults to false).
145 enableTabScroll : false,
147 * @cfg {Number} scrollIncrement The number of pixels to scroll each time a tab scroll button is pressed
148 * (defaults to <tt>100</tt>, or if <tt>{@link #resizeTabs} = true</tt>, the calculated tab width). Only
149 * applies when <tt>{@link #enableTabScroll} = true</tt>.
153 * @cfg {Number} scrollRepeatInterval Number of milliseconds between each scroll while a tab scroll button is
154 * continuously pressed (defaults to <tt>400</tt>).
156 scrollRepeatInterval : 400,
158 * @cfg {Float} scrollDuration The number of milliseconds that each scroll animation should last (defaults
159 * to <tt>.35</tt>). Only applies when <tt>{@link #animScroll} = true</tt>.
161 scrollDuration : 0.35,
163 * @cfg {Boolean} animScroll True to animate tab scrolling so that hidden tabs slide smoothly into view (defaults
164 * to <tt>true</tt>). Only applies when <tt>{@link #enableTabScroll} = true</tt>.
168 * @cfg {String} tabPosition The position where the tab strip should be rendered (defaults to <tt>'top'</tt>).
169 * The only other supported value is <tt>'bottom'</tt>. <b>Note</b>: tab scrolling is only supported for
170 * <tt>tabPosition: 'top'</tt>.
174 * @cfg {String} baseCls The base CSS class applied to the panel (defaults to <tt>'x-tab-panel'</tt>).
176 baseCls : 'x-tab-panel',
178 * @cfg {Boolean} autoTabs
179 * <p><tt>true</tt> to query the DOM for any divs with a class of 'x-tab' to be automatically converted
180 * to tabs and added to this panel (defaults to <tt>false</tt>). Note that the query will be executed within
181 * the scope of the container element only (so that multiple tab panels from markup can be supported via this
183 * <p>This method is only possible when the markup is structured correctly as a container with nested divs
184 * containing the class <tt>'x-tab'</tt>. To create TabPanels without these limitations, or to pull tab content
185 * from other elements on the page, see the example at the top of the class for generating tabs from markup.</p>
186 * <p>There are a couple of things to note when using this method:<ul>
187 * <li>When using the <tt>autoTabs</tt> config (as opposed to passing individual tab configs in the TabPanel's
188 * {@link #items} collection), you must use <tt>{@link #applyTo}</tt> to correctly use the specified <tt>id</tt>
189 * as the tab container. The <tt>autoTabs</tt> method <em>replaces</em> existing content with the TabPanel
191 * <li>Make sure that you set <tt>{@link #deferredRender}: false</tt> so that the content elements for each
192 * tab will be rendered into the TabPanel immediately upon page load, otherwise they will not be transformed
193 * until each tab is activated and will be visible outside the TabPanel.</li>
194 * </ul>Example usage:</p>
196 var tabs = new Ext.TabPanel({
199 deferredRender: false,
203 // This markup will be converted to a TabPanel from the code above
204 <div id="my-tabs">
205 <div class="x-tab" title="Tab 1">A simple tab</div>
206 <div class="x-tab" title="Tab 2">Another one</div>
212 * @cfg {String} autoTabSelector The CSS selector used to search for tabs in existing markup when
213 * <tt>{@link #autoTabs} = true</tt> (defaults to <tt>'div.x-tab'</tt>). This can be any valid selector
214 * supported by {@link Ext.DomQuery#select}. Note that the query will be executed within the scope of this
215 * tab panel only (so that multiple tab panels from markup can be supported on a page).
217 autoTabSelector : 'div.x-tab',
219 * @cfg {String/Number} activeTab A string id or the numeric index of the tab that should be initially
220 * activated on render (defaults to undefined).
222 activeTab : undefined,
224 * @cfg {Number} tabMargin The number of pixels of space to calculate into the sizing and scrolling of
225 * tabs. If you change the margin in CSS, you will need to update this value so calculations are correct
226 * with either <tt>{@link #resizeTabs}</tt> or scrolling tabs. (defaults to <tt>2</tt>)
230 * @cfg {Boolean} plain </tt>true</tt> to render the tab strip without a background container image
231 * (defaults to <tt>false</tt>).
235 * @cfg {Number} wheelIncrement For scrolling tabs, the number of pixels to increment on mouse wheel
236 * scrolling (defaults to <tt>20</tt>).
241 * This is a protected property used when concatenating tab ids to the TabPanel id for internal uniqueness.
242 * It does not generally need to be changed, but can be if external code also uses an id scheme that can
243 * potentially clash with this one.
248 itemCls : 'x-tab-item',
250 // private config overrides
252 headerAsText : false,
257 initComponent : function(){
259 Ext.TabPanel.superclass.initComponent.call(this);
262 * @event beforetabchange
263 * Fires before the active tab changes. Handlers can <tt>return false</tt> to cancel the tab change.
264 * @param {TabPanel} this
265 * @param {Panel} newTab The tab being activated
266 * @param {Panel} currentTab The current active tab
271 * Fires after the active tab has changed.
272 * @param {TabPanel} this
273 * @param {Panel} tab The new active tab
278 * Relays the contextmenu event from a tab selector element in the tab strip.
279 * @param {TabPanel} this
280 * @param {Panel} tab The target tab
281 * @param {EventObject} e
286 * @cfg {Object} layoutConfig
287 * TabPanel implicitly uses {@link Ext.layout.CardLayout} as its layout manager.
288 * <code>layoutConfig</code> may be used to configure this layout manager.
289 * <code>{@link #deferredRender}</code> and <code>{@link #layoutOnTabChange}</code>
290 * configured on the TabPanel will be applied as configs to the layout manager.
292 this.setLayout(new Ext.layout.CardLayout(Ext.apply({
293 layoutOnCardChange: this.layoutOnTabChange,
294 deferredRender: this.deferredRender
295 }, this.layoutConfig)));
297 if(this.tabPosition == 'top'){
298 this.elements += ',header';
299 this.stripTarget = 'header';
301 this.elements += ',footer';
302 this.stripTarget = 'footer';
305 this.stack = Ext.TabPanel.AccessStack();
311 onRender : function(ct, position){
312 Ext.TabPanel.superclass.onRender.call(this, ct, position);
315 var pos = this.tabPosition == 'top' ? 'header' : 'footer';
316 this[pos].addClass('x-tab-panel-'+pos+'-plain');
319 var st = this[this.stripTarget];
321 this.stripWrap = st.createChild({cls:'x-tab-strip-wrap', cn:{
322 tag:'ul', cls:'x-tab-strip x-tab-strip-'+this.tabPosition}});
324 var beforeEl = (this.tabPosition=='bottom' ? this.stripWrap : null);
325 st.createChild({cls:'x-tab-strip-spacer'}, beforeEl);
326 this.strip = new Ext.Element(this.stripWrap.dom.firstChild);
328 // create an empty span with class x-tab-strip-text to force the height of the header element when there's no tabs.
329 this.edge = this.strip.createChild({tag:'li', cls:'x-tab-edge', cn: [{tag: 'span', cls: 'x-tab-strip-text', cn: ' '}]});
330 this.strip.createChild({cls:'x-clear'});
332 this.body.addClass('x-tab-panel-body-'+this.tabPosition);
335 * @cfg {Template/XTemplate} itemTpl <p>(Optional) A {@link Ext.Template Template} or
336 * {@link Ext.XTemplate XTemplate} which may be provided to process the data object returned from
337 * <tt>{@link #getTemplateArgs}</tt> to produce a clickable selector element in the tab strip.</p>
338 * <p>The main element created should be a <tt><li></tt> element. In order for a click event on
339 * a selector element to be connected to its item, it must take its <i>id</i> from the TabPanel's
340 * native <tt>{@link #getTemplateArgs}</tt>.</p>
341 * <p>The child element which contains the title text must be marked by the CSS class
342 * <tt>x-tab-strip-inner</tt>.</p>
343 * <p>To enable closability, the created element should contain an element marked by the CSS class
344 * <tt>x-tab-strip-close</tt>.</p>
345 * <p>If a custom <tt>itemTpl</tt> is supplied, it is the developer's responsibility to create CSS
346 * style rules to create the desired appearance.</p>
347 * Below is an example of how to create customized tab selector items:<pre><code>
349 renderTo: document.body,
352 enableTabScroll: true,
355 defaults: {autoScroll:true},
356 itemTpl: new Ext.XTemplate(
357 '<li class="{cls}" id="{id}" style="overflow:hidden">',
358 '<tpl if="closable">',
359 '<a class="x-tab-strip-close"></a>',
361 '<a class="x-tab-right" href="#" style="padding-left:6px">',
362 '<em class="x-tab-left">',
363 '<span class="x-tab-strip-inner">',
364 '<img src="{src}" style="float:left;margin:3px 3px 0 0">',
365 '<span style="margin-left:20px" class="x-tab-strip-text {iconCls}">{text} {extra}</span>',
371 getTemplateArgs: function(item) {
372 // Call the native method to collect the base data. Like the ID!
373 var result = Ext.TabPanel.prototype.getTemplateArgs.call(this, item);
375 // Add stuff used in our template
376 return Ext.apply(result, {
377 closable: item.closable,
379 extra: item.extraText || ''
384 iconSrc: '../shared/icons/fam/grid.png',
389 iconSrc: '../shared/icons/fam/grid.png',
391 extraText: 'Extra stuff in the tab button'
397 var tt = new Ext.Template(
398 '<li class="{cls}" id="{id}"><a class="x-tab-strip-close"></a>',
399 '<a class="x-tab-right" href="#"><em class="x-tab-left">',
400 '<span class="x-tab-strip-inner"><span class="x-tab-strip-text {iconCls}">{text}</span></span>',
403 tt.disableFormats = true;
405 Ext.TabPanel.prototype.itemTpl = tt;
408 this.items.each(this.initTab, this);
412 afterRender : function(){
413 Ext.TabPanel.superclass.afterRender.call(this);
415 this.readTabs(false);
417 if(this.activeTab !== undefined){
418 var item = Ext.isObject(this.activeTab) ? this.activeTab : this.items.get(this.activeTab);
419 delete this.activeTab;
420 this.setActiveTab(item);
425 initEvents : function(){
426 Ext.TabPanel.superclass.initEvents.call(this);
427 this.mon(this.strip, {
429 mousedown: this.onStripMouseDown,
430 contextmenu: this.onStripContextMenu
432 if(this.enableTabScroll){
433 this.mon(this.strip, 'mousewheel', this.onWheel, this);
438 findTargets : function(e){
440 itemEl = e.getTarget('li:not(.x-tab-edge)', this.strip);
443 item = this.getComponent(itemEl.id.split(this.idDelimiter)[1]);
453 close : e.getTarget('.x-tab-strip-close', this.strip),
460 onStripMouseDown : function(e){
465 var t = this.findTargets(e);
467 if (t.item.fireEvent('beforeclose', t.item) !== false) {
468 t.item.fireEvent('close', t.item);
473 if(t.item && t.item != this.activeTab){
474 this.setActiveTab(t.item);
479 onStripContextMenu : function(e){
481 var t = this.findTargets(e);
483 this.fireEvent('contextmenu', this, t.item, e);
488 * True to scan the markup in this tab panel for <tt>{@link #autoTabs}</tt> using the
489 * <tt>{@link #autoTabSelector}</tt>
490 * @param {Boolean} removeExisting True to remove existing tabs
492 readTabs : function(removeExisting){
493 if(removeExisting === true){
494 this.items.each(function(item){
498 var tabs = this.el.query(this.autoTabSelector);
499 for(var i = 0, len = tabs.length; i < len; i++){
501 title = tab.getAttribute('title');
502 tab.removeAttribute('title');
511 initTab : function(item, index){
512 var before = this.strip.dom.childNodes[index],
513 p = this.getTemplateArgs(item),
515 this.itemTpl.insertBefore(before, p) :
516 this.itemTpl.append(this.strip, p),
517 cls = 'x-tab-strip-over',
520 tabEl.hover(function(){
525 tabEl.removeClass(cls);
529 tabEl.child('span.x-tab-strip-text', true).qtip = item.tabTip;
533 // Route *keyboard triggered* click events to the tab strip mouse handler.
534 tabEl.select('a').on('click', function(e){
536 this.onStripMouseDown(e);
538 }, this, {preventDefault: true});
542 disable: this.onItemDisabled,
543 enable: this.onItemEnabled,
544 titlechange: this.onItemTitleChanged,
545 iconchange: this.onItemIconChanged,
546 beforeshow: this.onBeforeShowItem
553 * <p>Provides template arguments for rendering a tab selector item in the tab strip.</p>
554 * <p>This method returns an object hash containing properties used by the TabPanel's <tt>{@link #itemTpl}</tt>
555 * to create a formatted, clickable tab selector element. The properties which must be returned
556 * are:</p><div class="mdetail-params"><ul>
557 * <li><b>id</b> : String<div class="sub-desc">A unique identifier which links to the item</div></li>
558 * <li><b>text</b> : String<div class="sub-desc">The text to display</div></li>
559 * <li><b>cls</b> : String<div class="sub-desc">The CSS class name</div></li>
560 * <li><b>iconCls</b> : String<div class="sub-desc">A CSS class to provide appearance for an icon.</div></li>
562 * @param {Ext.BoxComponent} item The {@link Ext.BoxComponent BoxComponent} for which to create a selector element in the tab strip.
563 * @return {Object} An object hash containing the properties required to render the selector element.
565 getTemplateArgs : function(item) {
566 var cls = item.closable ? 'x-tab-strip-closable' : '';
568 cls += ' x-item-disabled';
571 cls += ' x-tab-with-icon';
574 cls += ' ' + item.tabCls;
578 id: this.id + this.idDelimiter + item.getItemId(),
581 iconCls: item.iconCls || ''
587 Ext.TabPanel.superclass.onAdd.call(this, c);
589 var items = this.items;
590 this.initTab(c, items.indexOf(c));
591 this.delegateUpdates();
596 onBeforeAdd : function(item){
597 var existing = item.events ? (this.items.containsKey(item.getItemId()) ? item : null) : this.items.get(item);
599 this.setActiveTab(item);
602 Ext.TabPanel.superclass.onBeforeAdd.apply(this, arguments);
603 var es = item.elements;
604 item.elements = es ? es.replace(',header', '') : es;
605 item.border = (item.border === true);
609 onRemove : function(c){
610 var te = Ext.get(c.tabEl);
611 // check if the tabEl exists, it won't if the tab isn't rendered
613 te.select('a').removeAllListeners();
616 Ext.TabPanel.superclass.onRemove.call(this, c);
617 this.stack.remove(c);
619 c.un('disable', this.onItemDisabled, this);
620 c.un('enable', this.onItemEnabled, this);
621 c.un('titlechange', this.onItemTitleChanged, this);
622 c.un('iconchange', this.onItemIconChanged, this);
623 c.un('beforeshow', this.onBeforeShowItem, this);
624 if(c == this.activeTab){
625 var next = this.stack.next();
627 this.setActiveTab(next);
628 }else if(this.items.getCount() > 0){
629 this.setActiveTab(0);
631 this.setActiveTab(null);
634 if(!this.destroying){
635 this.delegateUpdates();
640 onBeforeShowItem : function(item){
641 if(item != this.activeTab){
642 this.setActiveTab(item);
648 onItemDisabled : function(item){
649 var el = this.getTabEl(item);
651 Ext.fly(el).addClass('x-item-disabled');
653 this.stack.remove(item);
657 onItemEnabled : function(item){
658 var el = this.getTabEl(item);
660 Ext.fly(el).removeClass('x-item-disabled');
665 onItemTitleChanged : function(item){
666 var el = this.getTabEl(item);
668 Ext.fly(el).child('span.x-tab-strip-text', true).innerHTML = item.title;
673 onItemIconChanged : function(item, iconCls, oldCls){
674 var el = this.getTabEl(item);
677 el.child('span.x-tab-strip-text').replaceClass(oldCls, iconCls);
678 el[Ext.isEmpty(iconCls) ? 'removeClass' : 'addClass']('x-tab-with-icon');
683 * Gets the DOM element for the tab strip item which activates the child panel with the specified
684 * ID. Access this to change the visual treatment of the item, for example by changing the CSS class name.
685 * @param {Panel/Number/String} tab The tab component, or the tab's index, or the tabs id or itemId.
686 * @return {HTMLElement} The DOM node
688 getTabEl : function(item){
689 var c = this.getComponent(item);
690 return c ? c.tabEl : null;
694 onResize : function(){
695 Ext.TabPanel.superclass.onResize.apply(this, arguments);
696 this.delegateUpdates();
700 * Suspends any internal calculations or scrolling while doing a bulk operation. See {@link #endUpdate}
702 beginUpdate : function(){
703 this.suspendUpdates = true;
707 * Resumes calculations and scrolling at the end of a bulk operation. See {@link #beginUpdate}
709 endUpdate : function(){
710 this.suspendUpdates = false;
711 this.delegateUpdates();
715 * Hides the tab strip item for the passed tab
716 * @param {Number/String/Panel} item The tab index, id or item
718 hideTabStripItem : function(item){
719 item = this.getComponent(item);
720 var el = this.getTabEl(item);
722 el.style.display = 'none';
723 this.delegateUpdates();
725 this.stack.remove(item);
729 * Unhides the tab strip item for the passed tab
730 * @param {Number/String/Panel} item The tab index, id or item
732 unhideTabStripItem : function(item){
733 item = this.getComponent(item);
734 var el = this.getTabEl(item);
736 el.style.display = '';
737 this.delegateUpdates();
742 delegateUpdates : function(){
743 var rendered = this.rendered;
744 if(this.suspendUpdates){
747 if(this.resizeTabs && rendered){
750 if(this.enableTabScroll && rendered){
751 this.autoScrollTabs();
756 autoSizeTabs : function(){
757 var count = this.items.length,
758 ce = this.tabPosition != 'bottom' ? 'header' : 'footer',
759 ow = this[ce].dom.offsetWidth,
760 aw = this[ce].dom.clientWidth;
762 if(!this.resizeTabs || count < 1 || !aw){ // !aw for display:none
766 var each = Math.max(Math.min(Math.floor((aw-4) / count) - this.tabMargin, this.tabWidth), this.minTabWidth); // -4 for float errors in IE
767 this.lastTabWidth = each;
768 var lis = this.strip.query('li:not(.x-tab-edge)');
769 for(var i = 0, len = lis.length; i < len; i++) {
771 inner = Ext.fly(li).child('.x-tab-strip-inner', true),
773 iw = inner.offsetWidth;
774 inner.style.width = (each - (tw-iw)) + 'px';
779 adjustBodyWidth : function(w){
781 this.header.setWidth(w);
784 this.footer.setWidth(w);
790 * Sets the specified tab as the active tab. This method fires the {@link #beforetabchange} event which
791 * can <tt>return false</tt> to cancel the tab change.
792 * @param {String/Number} item
793 * The id or tab Panel to activate. This parameter may be any of the following:
794 * <div><ul class="mdetail-params">
795 * <li>a <b><tt>String</tt></b> : representing the <code>{@link Ext.Component#itemId itemId}</code>
796 * or <code>{@link Ext.Component#id id}</code> of the child component </li>
797 * <li>a <b><tt>Number</tt></b> : representing the position of the child component
798 * within the <code>{@link Ext.Container#items items}</code> <b>property</b></li>
800 * <p>For additional information see {@link Ext.util.MixedCollection#get}.
802 setActiveTab : function(item){
803 item = this.getComponent(item);
804 if(this.fireEvent('beforetabchange', this, item, this.activeTab) === false){
808 this.activeTab = item;
811 if(this.activeTab != item){
813 var oldEl = this.getTabEl(this.activeTab);
815 Ext.fly(oldEl).removeClass('x-tab-strip-active');
818 this.activeTab = item;
820 var el = this.getTabEl(item);
821 Ext.fly(el).addClass('x-tab-strip-active');
822 this.stack.add(item);
824 this.layout.setActiveItem(item);
825 // Need to do this here, since setting the active tab slightly changes the size
826 this.delegateUpdates();
828 this.scrollToTab(item, this.animScroll);
831 this.fireEvent('tabchange', this, item);
836 * Returns the Component which is the currently active tab. <b>Note that before the TabPanel
837 * first activates a child Component, this method will return whatever was configured in the
838 * {@link #activeTab} config option.</b>
839 * @return {BoxComponent} The currently active child Component if one <i>is</i> active, or the {@link #activeTab} config value.
841 getActiveTab : function(){
842 return this.activeTab || null;
846 * Gets the specified tab by id.
847 * @param {String} id The tab id
848 * @return {Panel} The tab
850 getItem : function(item){
851 return this.getComponent(item);
855 autoScrollTabs : function(){
856 this.pos = this.tabPosition=='bottom' ? this.footer : this.header;
857 var count = this.items.length,
858 ow = this.pos.dom.offsetWidth,
859 tw = this.pos.dom.clientWidth,
860 wrap = this.stripWrap,
863 pos = this.getScrollPos(),
864 l = this.edge.getOffsetsTo(this.stripWrap)[0] + pos;
866 if(!this.enableTabScroll || cw < 20){ // 20 to prevent display:none issues
869 if(count == 0 || l <= tw){
870 // ensure the width is set if there's no tabs
874 this.scrolling = false;
875 this.pos.removeClass('x-tab-scrolling');
876 this.scrollLeft.hide();
877 this.scrollRight.hide();
878 // See here: http://extjs.com/forum/showthread.php?t=49308&highlight=isSafari
879 if(Ext.isAir || Ext.isWebKit){
880 wd.style.marginLeft = '';
881 wd.style.marginRight = '';
886 this.pos.addClass('x-tab-scrolling');
887 // See here: http://extjs.com/forum/showthread.php?t=49308&highlight=isSafari
888 if(Ext.isAir || Ext.isWebKit){
889 wd.style.marginLeft = '18px';
890 wd.style.marginRight = '18px';
893 tw -= wrap.getMargins('lr');
894 wrap.setWidth(tw > 20 ? tw : 20);
896 if(!this.scrollLeft){
897 this.createScrollers();
899 this.scrollLeft.show();
900 this.scrollRight.show();
903 this.scrolling = true;
904 if(pos > (l-tw)){ // ensure it stays within bounds
905 wd.scrollLeft = l-tw;
906 }else{ // otherwise, make sure the active tab is still visible
907 this.scrollToTab(this.activeTab, false);
909 this.updateScrollButtons();
914 createScrollers : function(){
915 this.pos.addClass('x-tab-scrolling-' + this.tabPosition);
916 var h = this.stripWrap.dom.offsetHeight;
919 var sl = this.pos.insertFirst({
920 cls:'x-tab-scroller-left'
923 sl.addClassOnOver('x-tab-scroller-left-over');
924 this.leftRepeater = new Ext.util.ClickRepeater(sl, {
925 interval : this.scrollRepeatInterval,
926 handler: this.onScrollLeft,
929 this.scrollLeft = sl;
932 var sr = this.pos.insertFirst({
933 cls:'x-tab-scroller-right'
936 sr.addClassOnOver('x-tab-scroller-right-over');
937 this.rightRepeater = new Ext.util.ClickRepeater(sr, {
938 interval : this.scrollRepeatInterval,
939 handler: this.onScrollRight,
942 this.scrollRight = sr;
946 getScrollWidth : function(){
947 return this.edge.getOffsetsTo(this.stripWrap)[0] + this.getScrollPos();
951 getScrollPos : function(){
952 return parseInt(this.stripWrap.dom.scrollLeft, 10) || 0;
956 getScrollArea : function(){
957 return parseInt(this.stripWrap.dom.clientWidth, 10) || 0;
961 getScrollAnim : function(){
962 return {duration:this.scrollDuration, callback: this.updateScrollButtons, scope: this};
966 getScrollIncrement : function(){
967 return this.scrollIncrement || (this.resizeTabs ? this.lastTabWidth+2 : 100);
971 * Scrolls to a particular tab if tab scrolling is enabled
972 * @param {Panel} item The item to scroll to
973 * @param {Boolean} animate True to enable animations
976 scrollToTab : function(item, animate){
980 var el = this.getTabEl(item),
981 pos = this.getScrollPos(),
982 area = this.getScrollArea(),
983 left = Ext.fly(el).getOffsetsTo(this.stripWrap)[0] + pos,
984 right = left + el.offsetWidth;
986 this.scrollTo(left, animate);
987 }else if(right > (pos + area)){
988 this.scrollTo(right - area, animate);
993 scrollTo : function(pos, animate){
994 this.stripWrap.scrollTo('left', pos, animate ? this.getScrollAnim() : false);
996 this.updateScrollButtons();
1000 onWheel : function(e){
1001 var d = e.getWheelDelta()*this.wheelIncrement*-1;
1004 var pos = this.getScrollPos(),
1006 sw = this.getScrollWidth()-this.getScrollArea();
1008 var s = Math.max(0, Math.min(sw, newpos));
1010 this.scrollTo(s, false);
1015 onScrollRight : function(){
1016 var sw = this.getScrollWidth()-this.getScrollArea(),
1017 pos = this.getScrollPos(),
1018 s = Math.min(sw, pos + this.getScrollIncrement());
1020 this.scrollTo(s, this.animScroll);
1025 onScrollLeft : function(){
1026 var pos = this.getScrollPos(),
1027 s = Math.max(0, pos - this.getScrollIncrement());
1029 this.scrollTo(s, this.animScroll);
1034 updateScrollButtons : function(){
1035 var pos = this.getScrollPos();
1036 this.scrollLeft[pos === 0 ? 'addClass' : 'removeClass']('x-tab-scroller-left-disabled');
1037 this.scrollRight[pos >= (this.getScrollWidth()-this.getScrollArea()) ? 'addClass' : 'removeClass']('x-tab-scroller-right-disabled');
1041 beforeDestroy : function() {
1042 Ext.destroy(this.leftRepeater, this.rightRepeater);
1043 this.deleteMembers('strip', 'edge', 'scrollLeft', 'scrollRight', 'stripWrap');
1044 this.activeTab = null;
1045 Ext.TabPanel.superclass.beforeDestroy.apply(this);
1049 * @cfg {Boolean} collapsible
1053 * @cfg {String} header
1057 * @cfg {Boolean} headerAsText
1069 * @cfg {Array} tools
1073 * @cfg {Array} toolTemplate
1077 * @cfg {Boolean} hideCollapseTool
1081 * @cfg {Boolean} titleCollapse
1085 * @cfg {Boolean} collapsed
1089 * @cfg {String} layout
1093 * @cfg {Boolean} preventBodyReset
1097 Ext.reg('tabpanel', Ext.TabPanel);
1100 * See {@link #setActiveTab}. Sets the specified tab as the active tab. This method fires
1101 * the {@link #beforetabchange} event which can <tt>return false</tt> to cancel the tab change.
1102 * @param {String/Panel} tab The id or tab Panel to activate
1105 Ext.TabPanel.prototype.activate = Ext.TabPanel.prototype.setActiveTab;
1107 // private utility class used by TabPanel
1108 Ext.TabPanel.AccessStack = function(){
1111 add : function(item){
1113 if(items.length > 10){
1118 remove : function(item){
1120 for(var i = 0, len = items.length; i < len; i++) {
1121 if(items[i] != item){