TabPanel.js
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上传日期:2018-01-28
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中间件编程
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JavaScript
- /*!
- * Ext JS Library 3.0.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
- /**
- * @class Ext.TabPanel
- * <p>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
- * (<tt>{@link Ext.Container#items items}</tt>) that are managed using a
- * {@link Ext.layout.CardLayout CardLayout layout manager}, and displayed as separate tabs.</p>
- *
- * <b>Note:</b> By default, a tab's close tool <i>destroys</i> the child tab Component
- * and all its descendants. This makes the child tab Component, and all its descendants <b>unusable</b>. To enable
- * re-use of a tab, configure the TabPanel with <b><code>{@link #autoDestroy autoDestroy: false}</code></b>.
- *
- * <p><b><u>TabPanel header/footer elements</u></b></p>
- * <p>TabPanels use their {@link Ext.Panel#header header} or {@link Ext.Panel#footer footer} element
- * (depending on the {@link #tabPosition} configuration) to accommodate the tab selector buttons.
- * This means that a TabPanel will not display any configured title, and will not display any
- * configured header {@link Ext.Panel#tools tools}.</p>
- * <p>To display a header, embed the TabPanel in a {@link Ext.Panel Panel} which uses
- * <b><tt>{@link Ext.Container#layout layout:'fit'}</tt></b>.</p>
- *
- * <p><b><u>Tab Events</u></b></p>
- * <p>There is no actual tab class — each tab is simply a {@link Ext.BoxComponent Component}
- * such as a {@link Ext.Panel Panel}. However, when rendered in a TabPanel, each child Component
- * can fire additional events that only exist for tabs and are not available from other Components.
- * These events are:</p>
- * <div><ul class="mdetail-params">
- * <li><tt><b>{@link Ext.Panel#activate activate}</b></tt> : Fires when this Component becomes
- * the active tab.</li>
- * <li><tt><b>{@link Ext.Panel#deactivate deactivate}</b></tt> : Fires when the Component that
- * was the active tab becomes deactivated.</li>
- * </ul></div>
- * <p><b><u>Creating TabPanels from Code</u></b></p>
- * <p>TabPanels can be created and rendered completely in code, as in this example:</p>
- * <pre><code>
- var tabs = new Ext.TabPanel({
- renderTo: Ext.getBody(),
- activeTab: 0,
- items: [{
- title: 'Tab 1',
- html: 'A simple tab'
- },{
- title: 'Tab 2',
- html: 'Another one'
- }]
- });
- </code></pre>
- * <p><b><u>Creating TabPanels from Existing Markup</u></b></p>
- * <p>TabPanels can also be rendered from pre-existing markup in a couple of ways.</p>
- * <div><ul class="mdetail-params">
- *
- * <li>Pre-Structured Markup</li>
- * <div class="sub-desc">
- * <p>A container div with one or more nested tab divs with class <tt>'x-tab'</tt> can be rendered entirely
- * from existing markup (See the {@link #autoTabs} example).</p>
- * </div>
- *
- * <li>Un-Structured Markup</li>
- * <div class="sub-desc">
- * <p>A TabPanel can also be rendered from markup that is not strictly structured by simply specifying by id
- * which elements should be the container and the tabs. Using this method tab content can be pulled from different
- * elements within the page by id regardless of page structure. For example:</p>
- * <pre><code>
- var tabs = new Ext.TabPanel({
- renderTo: 'my-tabs',
- activeTab: 0,
- items:[
- {contentEl:'tab1', title:'Tab 1'},
- {contentEl:'tab2', title:'Tab 2'}
- ]
- });
- // Note that the tabs do not have to be nested within the container (although they can be)
- <div id="my-tabs"></div>
- <div id="tab1" class="x-hide-display">A simple tab</div>
- <div id="tab2" class="x-hide-display">Another one</div>
- </code></pre>
- * Note that the tab divs in this example contain the class <tt>'x-hide-display'</tt> so that they can be rendered
- * deferred without displaying outside the tabs. You could alternately set <tt>{@link #deferredRender} = false </tt>
- * to render all content tabs on page load.
- * </div>
- *
- * </ul></div>
- *
- * @extends Ext.Panel
- * @constructor
- * @param {Object} config The configuration options
- * @xtype tabpanel
- */
- Ext.TabPanel = Ext.extend(Ext.Panel, {
- /**
- * @cfg {Boolean} layoutOnTabChange
- * Set to true to force a layout of the active tab when the tab is changed. Defaults to false.
- * See {@link Ext.layout.CardLayout}.<code>{@link Ext.layout.CardLayout#layoutOnCardChange layoutOnCardChange}</code>.
- */
- /**
- * @cfg {String} tabCls <b>This config option is used on <u>child Components</u> of ths TabPanel.</b> A CSS
- * class name applied to the tab strip item representing the child Component, allowing special
- * styling to be applied.
- */
- /**
- * @cfg {Boolean} monitorResize True to automatically monitor window resize events and rerender the layout on
- * browser resize (defaults to true).
- */
- monitorResize : true,
- /**
- * @cfg {Boolean} deferredRender
- * <p><tt>true</tt> by default to defer the rendering of child <tt>{@link Ext.Container#items items}</tt>
- * to the browsers DOM until a tab is activated. <tt>false</tt> will render all contained
- * <tt>{@link Ext.Container#items items}</tt> as soon as the {@link Ext.layout.CardLayout layout}
- * is rendered. If there is a significant amount of content or a lot of heavy controls being
- * rendered into panels that are not displayed by default, setting this to <tt>true</tt> might
- * improve performance.</p>
- * <br><p>The <tt>deferredRender</tt> property is internally passed to the layout manager for
- * TabPanels ({@link Ext.layout.CardLayout}) as its {@link Ext.layout.CardLayout#deferredRender}
- * configuration value.</p>
- * <br><p><b>Note</b>: leaving <tt>deferredRender</tt> as <tt>true</tt> means that the content
- * within an unactivated tab will not be available. For example, this means that if the TabPanel
- * is within a {@link Ext.form.FormPanel form}, then until a tab is activated, any Fields within
- * unactivated tabs will not be rendered, and will therefore not be submitted and will not be
- * available to either {@link Ext.form.BasicForm#getValues getValues} or
- * {@link Ext.form.BasicForm#setValues setValues}.</p>
- */
- deferredRender : true,
- /**
- * @cfg {Number} tabWidth The initial width in pixels of each new tab (defaults to 120).
- */
- tabWidth : 120,
- /**
- * @cfg {Number} minTabWidth The minimum width in pixels for each tab when {@link #resizeTabs} = true (defaults to 30).
- */
- minTabWidth : 30,
- /**
- * @cfg {Boolean} resizeTabs True to automatically resize each tab so that the tabs will completely fill the
- * tab strip (defaults to false). Setting this to true may cause specific widths that might be set per tab to
- * be overridden in order to fit them all into view (although {@link #minTabWidth} will always be honored).
- */
- resizeTabs : false,
- /**
- * @cfg {Boolean} enableTabScroll True to enable scrolling to tabs that may be invisible due to overflowing the
- * overall TabPanel width. Only available with tabPosition:'top' (defaults to false).
- */
- enableTabScroll : false,
- /**
- * @cfg {Number} scrollIncrement The number of pixels to scroll each time a tab scroll button is pressed
- * (defaults to <tt>100</tt>, or if <tt>{@link #resizeTabs} = true</tt>, the calculated tab width). Only
- * applies when <tt>{@link #enableTabScroll} = true</tt>.
- */
- scrollIncrement : 0,
- /**
- * @cfg {Number} scrollRepeatInterval Number of milliseconds between each scroll while a tab scroll button is
- * continuously pressed (defaults to <tt>400</tt>).
- */
- scrollRepeatInterval : 400,
- /**
- * @cfg {Float} scrollDuration The number of milliseconds that each scroll animation should last (defaults
- * to <tt>.35</tt>). Only applies when <tt>{@link #animScroll} = true</tt>.
- */
- scrollDuration : 0.35,
- /**
- * @cfg {Boolean} animScroll True to animate tab scrolling so that hidden tabs slide smoothly into view (defaults
- * to <tt>true</tt>). Only applies when <tt>{@link #enableTabScroll} = true</tt>.
- */
- animScroll : true,
- /**
- * @cfg {String} tabPosition The position where the tab strip should be rendered (defaults to <tt>'top'</tt>).
- * The only other supported value is <tt>'bottom'</tt>. <b>Note</b>: tab scrolling is only supported for
- * <tt>tabPosition: 'top'</tt>.
- */
- tabPosition : 'top',
- /**
- * @cfg {String} baseCls The base CSS class applied to the panel (defaults to <tt>'x-tab-panel'</tt>).
- */
- baseCls : 'x-tab-panel',
- /**
- * @cfg {Boolean} autoTabs
- * <p><tt>true</tt> to query the DOM for any divs with a class of 'x-tab' to be automatically converted
- * to tabs and added to this panel (defaults to <tt>false</tt>). Note that the query will be executed within
- * the scope of the container element only (so that multiple tab panels from markup can be supported via this
- * method).</p>
- * <p>This method is only possible when the markup is structured correctly as a container with nested divs
- * containing the class <tt>'x-tab'</tt>. To create TabPanels without these limitations, or to pull tab content
- * from other elements on the page, see the example at the top of the class for generating tabs from markup.</p>
- * <p>There are a couple of things to note when using this method:<ul>
- * <li>When using the <tt>autoTabs</tt> config (as opposed to passing individual tab configs in the TabPanel's
- * {@link #items} collection), you must use <tt>{@link #applyTo}</tt> to correctly use the specified <tt>id</tt>
- * as the tab container. The <tt>autoTabs</tt> method <em>replaces</em> existing content with the TabPanel
- * components.</li>
- * <li>Make sure that you set <tt>{@link #deferredRender}: false</tt> so that the content elements for each
- * tab will be rendered into the TabPanel immediately upon page load, otherwise they will not be transformed
- * until each tab is activated and will be visible outside the TabPanel.</li>
- * </ul>Example usage:</p>
- * <pre><code>
- var tabs = new Ext.TabPanel({
- applyTo: 'my-tabs',
- activeTab: 0,
- deferredRender: false,
- autoTabs: true
- });
- // This markup will be converted to a TabPanel from the code above
- <div id="my-tabs">
- <div class="x-tab" title="Tab 1">A simple tab</div>
- <div class="x-tab" title="Tab 2">Another one</div>
- </div>
- </code></pre>
- */
- autoTabs : false,
- /**
- * @cfg {String} autoTabSelector The CSS selector used to search for tabs in existing markup when
- * <tt>{@link #autoTabs} = true</tt> (defaults to <tt>'div.x-tab'</tt>). This can be any valid selector
- * supported by {@link Ext.DomQuery#select}. Note that the query will be executed within the scope of this
- * tab panel only (so that multiple tab panels from markup can be supported on a page).
- */
- 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).
- */
- activeTab : null,
- /**
- * @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
- * with either <tt>{@link #resizeTabs}</tt> or scrolling tabs. (defaults to <tt>2</tt>)
- */
- tabMargin : 2,
- /**
- * @cfg {Boolean} plain </tt>true</tt> to render the tab strip without a background container image
- * (defaults to <tt>false</tt>).
- */
- plain : false,
- /**
- * @cfg {Number} wheelIncrement For scrolling tabs, the number of pixels to increment on mouse wheel
- * scrolling (defaults to <tt>20</tt>).
- */
- wheelIncrement : 20,
- /*
- * This is a protected property used when concatenating tab ids to the TabPanel id for internal uniqueness.
- * It does not generally need to be changed, but can be if external code also uses an id scheme that can
- * potentially clash with this one.
- */
- idDelimiter : '__',
- // private
- itemCls : 'x-tab-item',
- // private config overrides
- elements : 'body',
- headerAsText : false,
- frame : false,
- hideBorders :true,
- // private
- initComponent : function(){
- this.frame = false;
- Ext.TabPanel.superclass.initComponent.call(this);
- this.addEvents(
- /**
- * @event beforetabchange
- * Fires before the active tab changes. Handlers can <tt>return false</tt> to cancel the tab change.
- * @param {TabPanel} this
- * @param {Panel} newTab The tab being activated
- * @param {Panel} currentTab The current active tab
- */
- 'beforetabchange',
- /**
- * @event tabchange
- * Fires after the active tab has changed.
- * @param {TabPanel} this
- * @param {Panel} tab The new active tab
- */
- 'tabchange',
- /**
- * @event contextmenu
- * Relays the contextmenu event from a tab selector element in the tab strip.
- * @param {TabPanel} this
- * @param {Panel} tab The target tab
- * @param {EventObject} e
- */
- 'contextmenu'
- );
- /**
- * @cfg {Object} layoutConfig
- * TabPanel implicitly uses {@link Ext.layout.CardLayout} as its layout manager.
- * <code>layoutConfig</code> may be used to configure this layout manager.
- * <code>{@link #deferredRender}</code> and <code>{@link #layoutOnTabChange}</code>
- * configured on the TabPanel will be applied as configs to the layout manager.
- */
- this.setLayout(new Ext.layout.CardLayout(Ext.apply({
- layoutOnCardChange: this.layoutOnTabChange,
- deferredRender: this.deferredRender
- }, this.layoutConfig)));
- if(this.tabPosition == 'top'){
- this.elements += ',header';
- this.stripTarget = 'header';
- }else {
- this.elements += ',footer';
- this.stripTarget = 'footer';
- }
- if(!this.stack){
- this.stack = Ext.TabPanel.AccessStack();
- }
- this.initItems();
- },
- // private
- onRender : function(ct, position){
- Ext.TabPanel.superclass.onRender.call(this, ct, position);
- if(this.plain){
- var pos = this.tabPosition == 'top' ? 'header' : 'footer';
- this[pos].addClass('x-tab-panel-'+pos+'-plain');
- }
- var st = this[this.stripTarget];
- this.stripWrap = st.createChild({cls:'x-tab-strip-wrap', cn:{
- 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);
- this.strip = new Ext.Element(this.stripWrap.dom.firstChild);
- this.edge = this.strip.createChild({tag:'li', cls:'x-tab-edge'});
- this.strip.createChild({cls:'x-clear'});
- this.body.addClass('x-tab-panel-body-'+this.tabPosition);
- /**
- * @cfg {Template/XTemplate} itemTpl <p>(Optional) A {@link Ext.Template Template} or
- * {@link Ext.XTemplate XTemplate} which may be provided to process the data object returned from
- * <tt>{@link #getTemplateArgs}</tt> to produce a clickable selector element in the tab strip.</p>
- * <p>The main element created should be a <tt><li></tt> element. In order for a click event on
- * a selector element to be connected to its item, it must take its <i>id</i> from the TabPanel's
- * native <tt>{@link #getTemplateArgs}</tt>.</p>
- * <p>The child element which contains the title text must be marked by the CSS class
- * <tt>x-tab-strip-inner</tt>.</p>
- * <p>To enable closability, the created element should contain an element marked by the CSS class
- * <tt>x-tab-strip-close</tt>.</p>
- * <p>If a custom <tt>itemTpl</tt> is supplied, it is the developer's responsibility to create CSS
- * style rules to create the desired appearance.</p>
- * Below is an example of how to create customized tab selector items:<pre><code>
- new Ext.TabPanel({
- renderTo: document.body,
- minTabWidth: 115,
- tabWidth: 135,
- enableTabScroll: true,
- width: 600,
- height: 250,
- defaults: {autoScroll:true},
- 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>',
- '</tpl>',
- '<a class="x-tab-right" href="#" onclick="return false;" 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">',
- '<span style="margin-left:20px" class="x-tab-strip-text {iconCls}">{text} {extra}</span>',
- '</span>',
- '</em>',
- '</a>',
- '</li>'
- ),
- getTemplateArgs: function(item) {
- // Call the native method to collect the base data. Like the ID!
- var result = Ext.TabPanel.prototype.getTemplateArgs.call(this, item);
- // Add stuff used in our template
- return Ext.apply(result, {
- closable: item.closable,
- src: item.iconSrc,
- extra: item.extraText || ''
- });
- },
- items: [{
- title: 'New Tab 1',
- iconSrc: '../shared/icons/fam/grid.png',
- html: 'Tab Body 1',
- closable: true
- }, {
- title: 'New Tab 2',
- iconSrc: '../shared/icons/fam/grid.png',
- html: 'Tab Body 2',
- extraText: 'Extra stuff in the tab button'
- }]
- });
- </code></pre>
- */
- if(!this.itemTpl){
- var tt = new Ext.Template(
- '<li class="{cls}" id="{id}"><a class="x-tab-strip-close" onclick="return false;"></a>',
- '<a class="x-tab-right" href="#" onclick="return false;"><em class="x-tab-left">',
- '<span class="x-tab-strip-inner"><span class="x-tab-strip-text {iconCls}">{text}</span></span>',
- '</em></a></li>'
- );
- tt.disableFormats = true;
- tt.compile();
- Ext.TabPanel.prototype.itemTpl = tt;
- }
- this.items.each(this.initTab, this);
- },
- // private
- afterRender : function(){
- Ext.TabPanel.superclass.afterRender.call(this);
- if(this.autoTabs){
- this.readTabs(false);
- }
- if(this.activeTab !== undefined){
- var item = Ext.isObject(this.activeTab) ? this.activeTab : this.items.get(this.activeTab);
- delete this.activeTab;
- this.setActiveTab(item);
- }
- },
- // private
- initEvents : function(){
- Ext.TabPanel.superclass.initEvents.call(this);
- this.on('add', this.onAdd, this, {target: this});
- this.on('remove', this.onRemove, this, {target: this});
- this.mon(this.strip, 'mousedown', this.onStripMouseDown, this);
- this.mon(this.strip, 'contextmenu', this.onStripContextMenu, this);
- if(this.enableTabScroll){
- this.mon(this.strip, 'mousewheel', this.onWheel, this);
- }
- },
- // private
- findTargets : function(e){
- var item = null;
- var itemEl = e.getTarget('li', this.strip);
- if(itemEl){
- item = this.getComponent(itemEl.id.split(this.idDelimiter)[1]);
- if(item.disabled){
- return {
- close : null,
- item : null,
- el : null
- };
- }
- }
- return {
- close : e.getTarget('.x-tab-strip-close', this.strip),
- item : item,
- el : itemEl
- };
- },
- // private
- onStripMouseDown : function(e){
- if(e.button !== 0){
- return;
- }
- e.preventDefault();
- var t = this.findTargets(e);
- if(t.close){
- if (t.item.fireEvent('beforeclose', t.item) !== false) {
- t.item.fireEvent('close', t.item);
- this.remove(t.item);
- }
- return;
- }
- if(t.item && t.item != this.activeTab){
- this.setActiveTab(t.item);
- }
- },
- // private
- onStripContextMenu : function(e){
- e.preventDefault();
- var t = this.findTargets(e);
- if(t.item){
- this.fireEvent('contextmenu', this, t.item, e);
- }
- },
- /**
- * True to scan the markup in this tab panel for <tt>{@link #autoTabs}</tt> using the
- * <tt>{@link #autoTabSelector}</tt>
- * @param {Boolean} removeExisting True to remove existing tabs
- */
- readTabs : function(removeExisting){
- if(removeExisting === true){
- this.items.each(function(item){
- this.remove(item);
- }, this);
- }
- var tabs = this.el.query(this.autoTabSelector);
- for(var i = 0, len = tabs.length; i < len; i++){
- var tab = tabs[i];
- var title = tab.getAttribute('title');
- tab.removeAttribute('title');
- this.add({
- title: title,
- contentEl: tab
- });
- }
- },
- // private
- initTab : function(item, index){
- var before = this.strip.dom.childNodes[index];
- var p = this.getTemplateArgs(item);
- var el = before ?
- this.itemTpl.insertBefore(before, p) :
- this.itemTpl.append(this.strip, p);
- Ext.fly(el).addClassOnOver('x-tab-strip-over');
- if(item.tabTip){
- Ext.fly(el).child('span.x-tab-strip-text', true).qtip = item.tabTip;
- }
- item.tabEl = el;
- item.on('disable', this.onItemDisabled, this);
- item.on('enable', this.onItemEnabled, this);
- item.on('titlechange', this.onItemTitleChanged, this);
- item.on('iconchange', this.onItemIconChanged, this);
- item.on('beforeshow', this.onBeforeShowItem, this);
- },
- /**
- * <p>Provides template arguments for rendering a tab selector item in the tab strip.</p>
- * <p>This method returns an object hash containing properties used by the TabPanel's <tt>{@link #itemTpl}</tt>
- * to create a formatted, clickable tab selector element. The properties which must be returned
- * are:</p><div class="mdetail-params"><ul>
- * <li><b>id</b> : String<div class="sub-desc">A unique identifier which links to the item</div></li>
- * <li><b>text</b> : String<div class="sub-desc">The text to display</div></li>
- * <li><b>cls</b> : String<div class="sub-desc">The CSS class name</div></li>
- * <li><b>iconCls</b> : String<div class="sub-desc">A CSS class to provide appearance for an icon.</div></li>
- * </ul></div>
- * @param {BoxComponent} item The {@link Ext.BoxComponent BoxComponent} for which to create a selector element in the tab strip.
- * @return {Object} An object hash containing the properties required to render the selector element.
- */
- getTemplateArgs : function(item) {
- var cls = item.closable ? 'x-tab-strip-closable' : '';
- if(item.disabled){
- cls += ' x-item-disabled';
- }
- if(item.iconCls){
- cls += ' x-tab-with-icon';
- }
- if(item.tabCls){
- cls += ' ' + item.tabCls;
- }
- return {
- id: this.id + this.idDelimiter + item.getItemId(),
- text: item.title,
- cls: cls,
- iconCls: item.iconCls || ''
- };
- },
- // private
- onAdd : function(tp, item, index){
- this.initTab(item, index);
- if(this.items.getCount() == 1){
- this.syncSize();
- }
- this.delegateUpdates();
- },
- // private
- onBeforeAdd : function(item){
- var existing = item.events ? (this.items.containsKey(item.getItemId()) ? item : null) : this.items.get(item);
- if(existing){
- this.setActiveTab(item);
- return false;
- }
- Ext.TabPanel.superclass.onBeforeAdd.apply(this, arguments);
- var es = item.elements;
- item.elements = es ? es.replace(',header', '') : es;
- item.border = (item.border === true);
- },
- // private
- onRemove : function(tp, item){
- Ext.destroy(Ext.get(this.getTabEl(item)));
- this.stack.remove(item);
- item.un('disable', this.onItemDisabled, this);
- item.un('enable', this.onItemEnabled, this);
- item.un('titlechange', this.onItemTitleChanged, this);
- item.un('iconchange', this.onItemIconChanged, this);
- item.un('beforeshow', this.onBeforeShowItem, this);
- if(item == this.activeTab){
- var next = this.stack.next();
- if(next){
- this.setActiveTab(next);
- }else if(this.items.getCount() > 0){
- this.setActiveTab(0);
- }else{
- this.activeTab = null;
- }
- }
- this.delegateUpdates();
- },
- // private
- onBeforeShowItem : function(item){
- if(item != this.activeTab){
- this.setActiveTab(item);
- return false;
- }
- },
- // private
- onItemDisabled : function(item){
- var el = this.getTabEl(item);
- if(el){
- Ext.fly(el).addClass('x-item-disabled');
- }
- this.stack.remove(item);
- },
- // private
- onItemEnabled : function(item){
- var el = this.getTabEl(item);
- if(el){
- Ext.fly(el).removeClass('x-item-disabled');
- }
- },
- // private
- onItemTitleChanged : function(item){
- var el = this.getTabEl(item);
- if(el){
- Ext.fly(el).child('span.x-tab-strip-text', true).innerHTML = item.title;
- }
- },
- //private
- onItemIconChanged : function(item, iconCls, oldCls){
- var el = this.getTabEl(item);
- if(el){
- Ext.fly(el).child('span.x-tab-strip-text').replaceClass(oldCls, iconCls);
- }
- },
- /**
- * Gets the DOM element for the tab strip item which activates the child panel with the specified
- * ID. Access this to change the visual treatment of the item, for example by changing the CSS class name.
- * @param {Panel/Number/String} tab The tab component, or the tab's index, or the tabs id or itemId.
- * @return {HTMLElement} The DOM node
- */
- getTabEl : function(item){
- return document.getElementById(this.id + this.idDelimiter + this.getComponent(item).getItemId());
- },
- // private
- onResize : function(){
- Ext.TabPanel.superclass.onResize.apply(this, arguments);
- this.delegateUpdates();
- },
- /**
- * Suspends any internal calculations or scrolling while doing a bulk operation. See {@link #endUpdate}
- */
- beginUpdate : function(){
- this.suspendUpdates = true;
- },
- /**
- * Resumes calculations and scrolling at the end of a bulk operation. See {@link #beginUpdate}
- */
- endUpdate : function(){
- this.suspendUpdates = false;
- this.delegateUpdates();
- },
- /**
- * Hides the tab strip item for the passed tab
- * @param {Number/String/Panel} item The tab index, id or item
- */
- hideTabStripItem : function(item){
- item = this.getComponent(item);
- var el = this.getTabEl(item);
- if(el){
- el.style.display = 'none';
- this.delegateUpdates();
- }
- this.stack.remove(item);
- },
- /**
- * Unhides the tab strip item for the passed tab
- * @param {Number/String/Panel} item The tab index, id or item
- */
- unhideTabStripItem : function(item){
- item = this.getComponent(item);
- var el = this.getTabEl(item);
- if(el){
- el.style.display = '';
- this.delegateUpdates();
- }
- },
- // private
- delegateUpdates : function(){
- if(this.suspendUpdates){
- return;
- }
- if(this.resizeTabs && this.rendered){
- this.autoSizeTabs();
- }
- if(this.enableTabScroll && this.rendered){
- this.autoScrollTabs();
- }
- },
- // 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;
- if(!this.resizeTabs || count < 1 || !aw){ // !aw for display:none
- return;
- }
- var each = Math.max(Math.min(Math.floor((aw-4) / count) - this.tabMargin, this.tabWidth), this.minTabWidth); // -4 for float errors in IE
- 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;
- inner.style.width = (each - (tw-iw)) + 'px';
- }
- },
- // private
- adjustBodyWidth : function(w){
- if(this.header){
- this.header.setWidth(w);
- }
- if(this.footer){
- this.footer.setWidth(w);
- }
- return w;
- },
- /**
- * Sets the specified tab as the active tab. This method fires the {@link #beforetabchange} event which
- * can <tt>return false</tt> to cancel the tab change.
- * @param {String/Number} item
- * The id or tab Panel to activate. This parameter may be any of the following:
- * <div><ul class="mdetail-params">
- * <li>a <b><tt>String</tt></b> : representing the <code>{@link Ext.Component#itemId itemId}</code>
- * or <code>{@link Ext.Component#id id}</code> of the child component </li>
- * <li>a <b><tt>Number</tt></b> : representing the position of the child component
- * within the <code>{@link Ext.Container#items items}</code> <b>property</b></li>
- * </ul></div>
- * <p>For additional information see {@link Ext.util.MixedCollection#get}.
- */
- setActiveTab : function(item){
- item = this.getComponent(item);
- if(!item || this.fireEvent('beforetabchange', this, item, this.activeTab) === false){
- return;
- }
- if(!this.rendered){
- this.activeTab = item;
- return;
- }
- if(this.activeTab != item){
- if(this.activeTab){
- var oldEl = this.getTabEl(this.activeTab);
- 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);
- }
- item.fireEvent('activate', item);
- this.fireEvent('tabchange', this, item);
- }
- },
- /**
- * Gets the currently active tab.
- * @return {Panel} The active tab
- */
- getActiveTab : function(){
- return this.activeTab || null;
- },
- /**
- * Gets the specified tab by id.
- * @param {String} id The tab id
- * @return {Panel} The tab
- */
- getItem : function(item){
- return this.getComponent(item);
- },
- // 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;
- if(!this.enableTabScroll || count < 1 || cw < 20){ // 20 to prevent display:none issues
- return;
- }
- if(l <= tw){
- wd.scrollLeft = 0;
- wrap.setWidth(tw);
- if(this.scrolling){
- this.scrolling = false;
- this.pos.removeClass('x-tab-scrolling');
- this.scrollLeft.hide();
- this.scrollRight.hide();
- // See here: http://extjs.com/forum/showthread.php?t=49308&highlight=isSafari
- if(Ext.isAir || Ext.isWebKit){
- wd.style.marginLeft = '';
- wd.style.marginRight = '';
- }
- }
- }else{
- if(!this.scrolling){
- this.pos.addClass('x-tab-scrolling');
- // See here: http://extjs.com/forum/showthread.php?t=49308&highlight=isSafari
- if(Ext.isAir || Ext.isWebKit){
- wd.style.marginLeft = '18px';
- wd.style.marginRight = '18px';
- }
- }
- tw -= wrap.getMargins('lr');
- wrap.setWidth(tw > 20 ? tw : 20);
- if(!this.scrolling){
- if(!this.scrollLeft){
- this.createScrollers();
- }else{
- this.scrollLeft.show();
- this.scrollRight.show();
- }
- }
- this.scrolling = true;
- if(pos > (l-tw)){ // ensure it stays within bounds
- wd.scrollLeft = l-tw;
- }else{ // otherwise, make sure the active tab is still visible
- this.scrollToTab(this.activeTab, false);
- }
- this.updateScrollButtons();
- }
- },
- // private
- createScrollers : function(){
- this.pos.addClass('x-tab-scrolling-' + this.tabPosition);
- var h = this.stripWrap.dom.offsetHeight;
- // left
- var sl = this.pos.insertFirst({
- cls:'x-tab-scroller-left'
- });
- sl.setHeight(h);
- sl.addClassOnOver('x-tab-scroller-left-over');
- this.leftRepeater = new Ext.util.ClickRepeater(sl, {
- interval : this.scrollRepeatInterval,
- handler: this.onScrollLeft,
- scope: this
- });
- this.scrollLeft = sl;
- // right
- var sr = this.pos.insertFirst({
- cls:'x-tab-scroller-right'
- });
- sr.setHeight(h);
- sr.addClassOnOver('x-tab-scroller-right-over');
- this.rightRepeater = new Ext.util.ClickRepeater(sr, {
- interval : this.scrollRepeatInterval,
- handler: this.onScrollRight,
- scope: this
- });
- this.scrollRight = sr;
- },
- // private
- getScrollWidth : function(){
- return this.edge.getOffsetsTo(this.stripWrap)[0] + this.getScrollPos();
- },
- // private
- getScrollPos : function(){
- return parseInt(this.stripWrap.dom.scrollLeft, 10) || 0;
- },
- // private
- getScrollArea : function(){
- return parseInt(this.stripWrap.dom.clientWidth, 10) || 0;
- },
- // private
- getScrollAnim : function(){
- return {duration:this.scrollDuration, callback: this.updateScrollButtons, scope: this};
- },
- // private
- getScrollIncrement : function(){
- return this.scrollIncrement || (this.resizeTabs ? this.lastTabWidth+2 : 100);
- },
- /**
- * Scrolls to a particular tab if tab scrolling is enabled
- * @param {Panel} item The item to scroll to
- * @param {Boolean} animate True to enable animations
- */
- 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(left < pos){
- this.scrollTo(left, animate);
- }else if(right > (pos + area)){
- this.scrollTo(right - area, animate);
- }
- },
- // private
- scrollTo : function(pos, animate){
- this.stripWrap.scrollTo('left', pos, animate ? this.getScrollAnim() : false);
- if(!animate){
- this.updateScrollButtons();
- }
- },
- onWheel : function(e){
- var d = e.getWheelDelta()*this.wheelIncrement*-1;
- e.stopEvent();
- var pos = this.getScrollPos();
- var newpos = pos + d;
- var sw = this.getScrollWidth()-this.getScrollArea();
- var s = Math.max(0, Math.min(sw, newpos));
- if(s != pos){
- this.scrollTo(s, false);
- }
- },
- // private
- onScrollRight : function(){
- var sw = this.getScrollWidth()-this.getScrollArea();
- var pos = this.getScrollPos();
- var s = Math.min(sw, pos + this.getScrollIncrement());
- if(s != pos){
- this.scrollTo(s, this.animScroll);
- }
- },
- // private
- onScrollLeft : function(){
- var pos = this.getScrollPos();
- var s = Math.max(0, pos - this.getScrollIncrement());
- if(s != pos){
- this.scrollTo(s, this.animScroll);
- }
- },
- // private
- updateScrollButtons : function(){
- var pos = this.getScrollPos();
- this.scrollLeft[pos === 0 ? 'addClass' : 'removeClass']('x-tab-scroller-left-disabled');
- this.scrollRight[pos >= (this.getScrollWidth()-this.getScrollArea()) ? 'addClass' : 'removeClass']('x-tab-scroller-right-disabled');
- },
- // 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.TabPanel.superclass.beforeDestroy.apply(this);
- }
- /**
- * @cfg {Boolean} collapsible
- * @hide
- */
- /**
- * @cfg {String} header
- * @hide
- */
- /**
- * @cfg {Boolean} headerAsText
- * @hide
- */
- /**
- * @property header
- * @hide
- */
- /**
- * @property title
- * @hide
- */
- /**
- * @cfg {Array} tools
- * @hide
- */
- /**
- * @cfg {Array} toolTemplate
- * @hide
- */
- /**
- * @cfg {Boolean} hideCollapseTool
- * @hide
- */
- /**
- * @cfg {Boolean} titleCollapse
- * @hide
- */
- /**
- * @cfg {Boolean} collapsed
- * @hide
- */
- /**
- * @cfg {String} layout
- * @hide
- */
- /**
- * @cfg {Boolean} preventBodyReset
- * @hide
- */
- });
- Ext.reg('tabpanel', Ext.TabPanel);
- /**
- * See {@link #setActiveTab}. Sets the specified tab as the active tab. This method fires
- * the {@link #beforetabchange} event which can <tt>return false</tt> to cancel the tab change.
- * @param {String/Panel} tab The id or tab Panel to activate
- * @method activate
- */
- Ext.TabPanel.prototype.activate = Ext.TabPanel.prototype.setActiveTab;
- // private utility class used by TabPanel
- Ext.TabPanel.AccessStack = function(){
- var items = [];
- return {
- add : function(item){
- items.push(item);
- if(items.length > 10){
- items.shift();
- }
- },
- remove : function(item){
- var s = [];
- for(var i = 0, len = items.length; i < len; i++) {
- if(items[i] != item){
- s.push(items[i]);
- }
- }
- items = s;
- },
- next : function(){
- return items.pop();
- }
- };
- };