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/** - * @author Aaron Conran - * @class Ext.grid.Panel - * @extends Ext.panel.Table - * - * Grids are an excellent way of showing large amounts of tabular data on the client side. Essentially a supercharged - * `<table>`, GridPanel makes it easy to fetch, sort and filter large amounts of data. - * - * Grids are composed of 2 main pieces - a {@link Ext.data.Store Store} full of data and a set of columns to render. - * - * {@img Ext.grid.Panel/Ext.grid.Panel1.png Ext.grid.Panel component} - * - * ## Basic GridPanel - * - * Ext.create('Ext.data.Store', { - * storeId:'simpsonsStore', - * fields:['name', 'email', 'phone'], - * data:{'items':[ - * {"name":"Lisa", "email":"lisa@simpsons.com", "phone":"555-111-1224"}, - * {"name":"Bart", "email":"bart@simpsons.com", "phone":"555--222-1234"}, - * {"name":"Homer", "email":"home@simpsons.com", "phone":"555-222-1244"}, - * {"name":"Marge", "email":"marge@simpsons.com", "phone":"555-222-1254"} - * ]}, - * proxy: { - * type: 'memory', - * reader: { - * type: 'json', - * root: 'items' +/** + * @author Ed Spencer, Tommy Maintz, Brian Moeskau + * + * A basic tab container. TabPanels can be used exactly like a standard {@link Ext.panel.Panel} for + * layout purposes, but also have special support for containing child Components + * (`{@link Ext.container.Container#items items}`) that are managed using a + * {@link Ext.layout.container.Card CardLayout layout manager}, and displayed as separate tabs. + * + * **Note:** By default, a tab's close tool _destroys_ the child tab Component and all its descendants. + * This makes the child tab Component, and all its descendants **unusable**. To enable re-use of a tab, + * configure the TabPanel with `{@link #autoDestroy autoDestroy: false}`. + * + * ## TabPanel's layout + * + * TabPanels use a Dock layout to position the {@link Ext.tab.Bar TabBar} at the top of the widget. + * Panels added to the TabPanel will have their header hidden by default because the Tab will + * automatically take the Panel's configured title and icon. + * + * TabPanels use their {@link Ext.panel.Header header} or {@link Ext.panel.Panel#fbar 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.Panel#tools tools}. + * + * To display a header, embed the TabPanel in a {@link Ext.panel.Panel Panel} which uses + * `{@link Ext.container.Container#layout layout: 'fit'}`. + * + * ## Controlling tabs + * + * Configuration options for the {@link Ext.tab.Tab} that represents the component can be passed in + * by specifying the tabConfig option: + * + * @example + * Ext.create('Ext.tab.Panel', { + * width: 400, + * height: 400, + * renderTo: document.body, + * items: [{ + * title: 'Foo' + * }, { + * title: 'Bar', + * tabConfig: { + * title: 'Custom Title', + * tooltip: 'A button tooltip' * } - * } + * }] * }); - * - * Ext.create('Ext.grid.Panel', { - * title: 'Simpsons', - * store: Ext.data.StoreManager.lookup('simpsonsStore'), - * columns: [ - * {header: 'Name', dataIndex: 'name'}, - * {header: 'Email', dataIndex: 'email', flex:1}, - * {header: 'Phone', dataIndex: 'phone'} - * ], + * + * # Examples + * + * Here is a basic TabPanel rendered to the body. This also shows the useful configuration {@link #activeTab}, + * which allows you to set the active tab on render. If you do not set an {@link #activeTab}, no tabs will be + * active by default. + * + * @example + * Ext.create('Ext.tab.Panel', { + * width: 300, * height: 200, - * width: 400, - * renderTo: Ext.getBody() + * activeTab: 0, + * items: [ + * { + * title: 'Tab 1', + * bodyPadding: 10, + * html : 'A simple tab' + * }, + * { + * title: 'Tab 2', + * html : 'Another one' + * } + * ], + * renderTo : Ext.getBody() * }); - * - * The code above produces a simple grid with three columns. We specified a Store which will load JSON data inline. - * In most apps we would be placing the grid inside another container and wouldn't need to use the - * {@link #height}, {@link #width} and {@link #renderTo} configurations but they are included here to make it easy to get - * up and running. - * - * The grid we created above will contain a header bar with a title ('Simpsons'), a row of column headers directly underneath - * and finally the grid rows under the headers. - * - * ## Configuring columns - * - * By default, each column is sortable and will toggle between ASC and DESC sorting when you click on its header. Each - * column header is also reorderable by default, and each gains a drop-down menu with options to hide and show columns. - * It's easy to configure each column - here we use the same example as above and just modify the columns config: - * - * columns: [ - * { - * header: 'Name', - * dataIndex: 'name', - * sortable: false, - * hideable: false, - * flex: 1 - * }, - * { - * header: 'Email', - * dataIndex: 'email', + * + * It is easy to control the visibility of items in the tab bar. Specify hidden: true to have the + * tab button hidden initially. Items can be subsequently hidden and show by accessing the + * tab property on the child item. + * + * @example + * var tabs = Ext.create('Ext.tab.Panel', { + * width: 400, + * height: 400, + * renderTo: document.body, + * items: [{ + * title: 'Home', + * html: 'Home', + * itemId: 'home' + * }, { + * title: 'Users', + * html: 'Users', + * itemId: 'users', * hidden: true - * }, - * { - * header: 'Phone', - * dataIndex: 'phone', - * width: 100 - * } - * ] - * - * We turned off sorting and hiding on the 'Name' column so clicking its header now has no effect. We also made the Email - * column hidden by default (it can be shown again by using the menu on any other column). We also set the Phone column to - * a fixed with of 100px and flexed the Name column, which means it takes up all remaining width after the other columns - * have been accounted for. See the {@link Ext.grid.column.Column column docs} for more details. - * - * ## Renderers - * - * As well as customizing columns, it's easy to alter the rendering of individual cells using renderers. A renderer is - * tied to a particular column and is passed the value that would be rendered into each cell in that column. For example, - * we could define a renderer function for the email column to turn each email address into a mailto link: - * - * columns: [ - * { - * header: 'Email', - * dataIndex: 'email', - * renderer: function(value) { - * return Ext.String.format('<a href="mailto:{0}">{1}</a>', value, value); - * } - * } - * ] - * - * See the {@link Ext.grid.column.Column column docs} for more information on renderers. - * - * ## Selection Models - * - * Sometimes all you want is to render data onto the screen for viewing, but usually it's necessary to interact with or - * update that data. Grids use a concept called a Selection Model, which is simply a mechanism for selecting some part of - * the data in the grid. The two main types of Selection Model are RowSelectionModel, where entire rows are selected, and - * CellSelectionModel, where individual cells are selected. - * - * Grids use a Row Selection Model by default, but this is easy to customise like so: - * - * Ext.create('Ext.grid.Panel', { - * selType: 'cellmodel', - * store: ... + * }, { + * title: 'Tickets', + * html: 'Tickets', + * itemId: 'tickets' + * }] * }); - * - * Specifying the `cellmodel` changes a couple of things. Firstly, clicking on a cell now - * selects just that cell (using a {@link Ext.selection.RowModel rowmodel} will select the entire row), and secondly the - * keyboard navigation will walk from cell to cell instead of row to row. Cell-based selection models are usually used in - * conjunction with editing. - * - * {@img Ext.grid.Panel/Ext.grid.Panel2.png Ext.grid.Panel cell editing} - * - * ## Editing - * - * Grid has built-in support for in-line editing. There are two chief editing modes - cell editing and row editing. Cell - * editing is easy to add to your existing column setup - here we'll just modify the example above to include an editor - * on both the name and the email columns: - * - * Ext.create('Ext.grid.Panel', { - * title: 'Simpsons', - * store: Ext.data.StoreManager.lookup('simpsonsStore'), - * columns: [ - * {header: 'Name', dataIndex: 'name', field: 'textfield'}, - * {header: 'Email', dataIndex: 'email', flex:1, - * field:{ - * xtype:'textfield', - * allowBlank:false - * } + * + * setTimeout(function(){ + * tabs.child('#home').tab.hide(); + * var users = tabs.child('#users'); + * users.tab.show(); + * tabs.setActiveTab(users); + * }, 1000); + * + * You can remove the background of the TabBar by setting the {@link #plain} property to `true`. + * + * @example + * Ext.create('Ext.tab.Panel', { + * width: 300, + * height: 200, + * activeTab: 0, + * plain: true, + * items: [ + * { + * title: 'Tab 1', + * bodyPadding: 10, + * html : 'A simple tab' * }, - * {header: 'Phone', dataIndex: 'phone'} - * ], - * selType: 'cellmodel', - * plugins: [ - * Ext.create('Ext.grid.plugin.CellEditing', { - * clicksToEdit: 1 - * }) + * { + * title: 'Tab 2', + * html : 'Another one' + * } * ], - * height: 200, - * width: 400, - * renderTo: Ext.getBody() + * renderTo : Ext.getBody() * }); - * - * This requires a little explanation. We're passing in {@link #store store} and {@link #columns columns} as normal, but - * this time we've also specified a {@link #field field} on two of our columns. For the Name column we just want a default - * textfield to edit the value, so we specify 'textfield'. For the Email column we customized the editor slightly by - * passing allowBlank: false, which will provide inline validation. - * - * To support cell editing, we also specified that the grid should use the 'cellmodel' {@link #selType}, and created an - * instance of the {@link Ext.grid.plugin.CellEditing CellEditing plugin}, which we configured to activate each editor after a - * single click. - * - * {@img Ext.grid.Panel/Ext.grid.Panel3.png Ext.grid.Panel row editing} - * - * ## Row Editing - * - * The other type of editing is row-based editing, using the RowEditor component. This enables you to edit an entire row - * at a time, rather than editing cell by cell. Row Editing works in exactly the same way as cell editing, all we need to - * do is change the plugin type to {@link Ext.grid.plugin.RowEditing}, and set the selType to 'rowmodel': - * - * Ext.create('Ext.grid.Panel', { - * title: 'Simpsons', - * store: Ext.data.StoreManager.lookup('simpsonsStore'), - * columns: [ - * {header: 'Name', dataIndex: 'name', field: 'textfield'}, - * {header: 'Email', dataIndex: 'email', flex:1, - * field:{ - * xtype:'textfield', - * allowBlank:false - * } + * + * Another useful configuration of TabPanel is {@link #tabPosition}. This allows you to change the + * position where the tabs are displayed. The available options for this are `'top'` (default) and + * `'bottom'`. + * + * @example + * Ext.create('Ext.tab.Panel', { + * width: 300, + * height: 200, + * activeTab: 0, + * bodyPadding: 10, + * tabPosition: 'bottom', + * items: [ + * { + * title: 'Tab 1', + * html : 'A simple tab' * }, - * {header: 'Phone', dataIndex: 'phone'} + * { + * title: 'Tab 2', + * html : 'Another one' + * } * ], - * selType: 'rowmodel', - * plugins: [ - * Ext.create('Ext.grid.plugin.RowEditing', { - * clicksToEdit: 1 - * }) + * renderTo : Ext.getBody() + * }); + * + * The {@link #setActiveTab} is a very useful method in TabPanel which will allow you to change the + * current active tab. You can either give it an index or an instance of a tab. For example: + * + * @example + * var tabs = Ext.create('Ext.tab.Panel', { + * items: [ + * { + * id : 'my-tab', + * title: 'Tab 1', + * html : 'A simple tab' + * }, + * { + * title: 'Tab 2', + * html : 'Another one' + * } * ], - * height: 200, - * width: 400, - * renderTo: Ext.getBody() + * renderTo : Ext.getBody() * }); - * - * Again we passed some configuration to our {@link Ext.grid.plugin.RowEditing} plugin, and now when we click each row a row - * editor will appear and enable us to edit each of the columns we have specified an editor for. - * - * ## Sorting & Filtering - * - * Every grid is attached to a {@link Ext.data.Store Store}, which provides multi-sort and filtering capabilities. It's - * easy to set up a grid to be sorted from the start: - * - * var myGrid = Ext.create('Ext.grid.Panel', { - * store: { - * fields: ['name', 'email', 'phone'], - * sorters: ['name', 'phone'] + * + * var tab = Ext.getCmp('my-tab'); + * + * Ext.create('Ext.button.Button', { + * renderTo: Ext.getBody(), + * text : 'Select the first tab', + * scope : this, + * handler : function() { + * tabs.setActiveTab(tab); + * } + * }); + * + * Ext.create('Ext.button.Button', { + * text : 'Select the second tab', + * scope : this, + * handler : function() { + * tabs.setActiveTab(1); * }, - * columns: [ - * {text: 'Name', dataIndex: 'name'}, - * {text: 'Email', dataIndex: 'email'} - * ] + * renderTo : Ext.getBody() * }); - * - * Sorting at run time is easily accomplished by simply clicking each column header. If you need to perform sorting on - * more than one field at run time it's easy to do so by adding new sorters to the store: - * - * myGrid.store.sort([ - * {property: 'name', direction: 'ASC'}, - * {property: 'email', direction: 'DESC'}, - * ]); - * - * {@img Ext.grid.Panel/Ext.grid.Panel4.png Ext.grid.Panel grouping} - * - * ## Grouping - * - * Grid supports the grouping of rows by any field. For example if we had a set of employee records, we might want to - * group by the department that each employee works in. Here's how we might set that up: - * - * var store = Ext.create('Ext.data.Store', { - * storeId:'employeeStore', - * fields:['name', 'senority', 'department'], - * groupField: 'department', - * data:{'employees':[ - * {"name":"Michael Scott", "senority":7, "department":"Manangement"}, - * {"name":"Dwight Schrute", "senority":2, "department":"Sales"}, - * {"name":"Jim Halpert", "senority":3, "department":"Sales"}, - * {"name":"Kevin Malone", "senority":4, "department":"Accounting"}, - * {"name":"Angela Martin", "senority":5, "department":"Accounting"} - * ]}, - * proxy: { - * type: 'memory', - * reader: { - * type: 'json', - * root: 'employees' + * + * The {@link #getActiveTab} is a another useful method in TabPanel which will return the current active tab. + * + * @example + * var tabs = Ext.create('Ext.tab.Panel', { + * items: [ + * { + * title: 'Tab 1', + * html : 'A simple tab' + * }, + * { + * title: 'Tab 2', + * html : 'Another one' * } - * } - * }); - * - * Ext.create('Ext.grid.Panel', { - * title: 'Employees', - * store: Ext.data.StoreManager.lookup('employeeStore'), - * columns: [ - * {header: 'Name', dataIndex: 'name'}, - * {header: 'Senority', dataIndex: 'senority'} - * ], - * features: [{ftype:'grouping'}], - * width: 200, - * height: 275, - * renderTo: Ext.getBody() + * ], + * renderTo : Ext.getBody() * }); - * - * ## Infinite Scrolling - * - * Grid supports infinite scrolling as an alternative to using a paging toolbar. Your users can scroll through thousands - * of records without the performance penalties of renderering all the records on screen at once. The grid should be bound - * to a store with a pageSize specified. - * - * var grid = Ext.create('Ext.grid.Panel', { - * // Use a PagingGridScroller (this is interchangeable with a PagingToolbar) - * verticalScrollerType: 'paginggridscroller', - * // do not reset the scrollbar when the view refreshs - * invalidateScrollerOnRefresh: false, - * // infinite scrolling does not support selection - * disableSelection: true, - * // ... + * + * Ext.create('Ext.button.Button', { + * text : 'Get active tab', + * scope : this, + * handler : function() { + * var tab = tabs.getActiveTab(); + * alert('Current tab: ' + tab.title); + * }, + * renderTo : Ext.getBody() * }); - * - * ## Paging - * - * Grid supports paging through large sets of data via a PagingToolbar or PagingGridScroller (see the Infinite Scrolling section above). - * To leverage paging via a toolbar or scroller, you need to set a pageSize configuration on the Store. - * - * var itemsPerPage = 2; // set the number of items you want per page - * - * var store = Ext.create('Ext.data.Store', { - * id:'simpsonsStore', - * autoLoad: false, - * fields:['name', 'email', 'phone'], - * pageSize: itemsPerPage, // items per page - * proxy: { - * type: 'ajax', - * url: 'pagingstore.js', // url that will load data with respect to start and limit params - * reader: { - * type: 'json', - * root: 'items', - * totalProperty: 'total' + * + * Adding a new tab is very simple with a TabPanel. You simple call the {@link #add} method with an config + * object for a panel. + * + * @example + * var tabs = Ext.create('Ext.tab.Panel', { + * items: [ + * { + * title: 'Tab 1', + * html : 'A simple tab' + * }, + * { + * title: 'Tab 2', + * html : 'Another one' * } - * } + * ], + * renderTo : Ext.getBody() * }); - * - * // specify segment of data you want to load using params - * store.load({ - * params:{ - * start:0, - * limit: itemsPerPage - * } + * + * Ext.create('Ext.button.Button', { + * text : 'New tab', + * scope : this, + * handler : function() { + * var tab = tabs.add({ + * // we use the tabs.items property to get the length of current items/tabs + * title: 'Tab ' + (tabs.items.length + 1), + * html : 'Another one' + * }); + * + * tabs.setActiveTab(tab); + * }, + * renderTo : Ext.getBody() * }); - * - * Ext.create('Ext.grid.Panel', { - * title: 'Simpsons', - * store: store, - * columns: [ - * {header: 'Name', dataIndex: 'name'}, - * {header: 'Email', dataIndex: 'email', flex:1}, - * {header: 'Phone', dataIndex: 'phone'} + * + * Additionally, removing a tab is very also simple with a TabPanel. You simple call the {@link #remove} method + * with an config object for a panel. + * + * @example + * var tabs = Ext.create('Ext.tab.Panel', { + * items: [ + * { + * title: 'Tab 1', + * html : 'A simple tab' + * }, + * { + * id : 'remove-this-tab', + * title: 'Tab 2', + * html : 'Another one' + * } * ], - * width: 400, - * height: 125, - * dockedItems: [{ - * xtype: 'pagingtoolbar', - * store: store, // same store GridPanel is using - * dock: 'bottom', - * displayInfo: true - * }], - * renderTo: Ext.getBody() - * }); - * - * {@img Ext.grid.Panel/Ext.grid.Panel5.png Ext.grid.Panel grouping} - * - * @docauthor Ed Spencer + * renderTo : Ext.getBody() + * }); + * + * Ext.create('Ext.button.Button', { + * text : 'Remove tab', + * scope : this, + * handler : function() { + * var tab = Ext.getCmp('remove-this-tab'); + * tabs.remove(tab); + * }, + * renderTo : Ext.getBody() + * }); */ -Ext.define('Ext.grid.Panel', { - extend: 'Ext.panel.Table', - requires: ['Ext.grid.View'], - alias: ['widget.gridpanel', 'widget.grid'], - alternateClassName: ['Ext.list.ListView', 'Ext.ListView', 'Ext.grid.GridPanel'], - viewType: 'gridview', - - lockable: false, - - // Required for the Lockable Mixin. These are the configurations which will be copied to the - // normal and locked sub tablepanels - normalCfgCopy: ['invalidateScrollerOnRefresh', 'verticalScroller', 'verticalScrollDock', 'verticalScrollerType', 'scroll'], - lockedCfgCopy: ['invalidateScrollerOnRefresh'], - - /** - * @cfg {Boolean} columnLines Adds column line styling +Ext.define('Ext.tab.Panel', { + extend: 'Ext.panel.Panel', + alias: 'widget.tabpanel', + alternateClassName: ['Ext.TabPanel'], + + requires: ['Ext.layout.container.Card', 'Ext.tab.Bar'], + + /** + * @cfg {String} tabPosition + * The position where the tab strip should be rendered. Can be `top` or `bottom`. + */ + tabPosition : 'top', + + /** + * @cfg {String/Number} activeItem + * Doesn't apply for {@link Ext.tab.Panel TabPanel}, use {@link #activeTab} instead. + */ + + /** + * @cfg {String/Number/Ext.Component} activeTab + * The tab to activate initially. Either an ID, index or the tab component itself. + */ + + /** + * @cfg {Object} tabBar + * Optional configuration object for the internal {@link Ext.tab.Bar}. + * If present, this is passed straight through to the TabBar's constructor + */ + + /** + * @cfg {Object} layout + * Optional configuration object for the internal {@link Ext.layout.container.Card card layout}. + * If present, this is passed straight through to the layout's constructor + */ + + /** + * @cfg {Boolean} removePanelHeader + * True to instruct each Panel added to the TabContainer to not render its header element. + * This is to ensure that the title of the panel does not appear twice. + */ + removePanelHeader: true, + + /** + * @cfg {Boolean} plain + * True to not show the full background on the TabBar. + */ + plain: false, + + /** + * @cfg {String} itemCls + * The class added to each child item of this TabPanel. + */ + itemCls: 'x-tabpanel-child', + + /** + * @cfg {Number} minTabWidth + * The minimum width for a tab in the {@link #tabBar}. */ - + minTabWidth: undefined, + + /** + * @cfg {Number} maxTabWidth The maximum width for each tab. + */ + maxTabWidth: undefined, + + /** + * @cfg {Boolean} deferredRender + * + * True by default to defer the rendering of child {@link Ext.container.Container#items items} to the browsers DOM + * until a tab is activated. False will render all contained {@link Ext.container.Container#items items} as soon as + * the {@link Ext.layout.container.Card 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 true might improve + * performance. + * + * The deferredRender property is internally passed to the layout manager for TabPanels ({@link + * Ext.layout.container.Card}) as its {@link Ext.layout.container.Card#deferredRender} configuration value. + * + * **Note**: leaving deferredRender as true means that the content within an unactivated tab will not be available + */ + deferredRender : true, + + //inherit docs initComponent: function() { - var me = this; + var me = this, + dockedItems = me.dockedItems || [], + activeTab = me.activeTab || 0; + + me.layout = Ext.create('Ext.layout.container.Card', Ext.apply({ + owner: me, + deferredRender: me.deferredRender, + itemCls: me.itemCls + }, me.layout)); + + /** + * @property {Ext.tab.Bar} tabBar Internal reference to the docked TabBar + */ + me.tabBar = Ext.create('Ext.tab.Bar', Ext.apply({}, me.tabBar, { + dock: me.tabPosition, + plain: me.plain, + border: me.border, + cardLayout: me.layout, + tabPanel: me + })); + + if (dockedItems && !Ext.isArray(dockedItems)) { + dockedItems = [dockedItems]; + } + + dockedItems.push(me.tabBar); + me.dockedItems = dockedItems; + + me.addEvents( + /** + * @event + * Fires before a tab change (activated by {@link #setActiveTab}). Return false in any listener to cancel + * the tabchange + * @param {Ext.tab.Panel} tabPanel The TabPanel + * @param {Ext.Component} newCard The card that is about to be activated + * @param {Ext.Component} oldCard The card that is currently active + */ + 'beforetabchange', + + /** + * @event + * Fires when a new tab has been activated (activated by {@link #setActiveTab}). + * @param {Ext.tab.Panel} tabPanel The TabPanel + * @param {Ext.Component} newCard The newly activated item + * @param {Ext.Component} oldCard The previously active item + */ + 'tabchange' + ); + me.callParent(arguments); + + //set the active tab + me.setActiveTab(activeTab); + //set the active tab after initial layout + me.on('afterlayout', me.afterInitialLayout, me, {single: true}); + }, + + /** + * @private + * We have to wait until after the initial layout to visually activate the activeTab (if set). + * The active tab has different margins than normal tabs, so if the initial layout happens with + * a tab active, its layout will be offset improperly due to the active margin style. Waiting + * until after the initial layout avoids this issue. + */ + afterInitialLayout: function() { + var me = this, + card = me.getComponent(me.activeTab); + + if (card) { + me.layout.setActiveItem(card); + } + }, + + /** + * Makes the given card active. Makes it the visible card in the TabPanel's CardLayout and highlights the Tab. + * @param {String/Number/Ext.Component} card The card to make active. Either an ID, index or the component itself. + */ + setActiveTab: function(card) { + var me = this, + previous; + + card = me.getComponent(card); + if (card) { + previous = me.getActiveTab(); + + if (previous && previous !== card && me.fireEvent('beforetabchange', me, card, previous) === false) { + return false; + } + + me.tabBar.setActiveTab(card.tab); + me.activeTab = card; + if (me.rendered) { + me.layout.setActiveItem(card); + } + + if (previous && previous !== card) { + me.fireEvent('tabchange', me, card, previous); + } + } + }, - if (me.columnLines) { - me.setColumnLines(me.columnLines); + /** + * Returns the item that is currently active inside this TabPanel. Note that before the TabPanel first activates a + * child component this will return whatever was configured in the {@link #activeTab} config option + * @return {String/Number/Ext.Component} The currently active item + */ + getActiveTab: function() { + return this.activeTab; + }, + + /** + * Returns the {@link Ext.tab.Bar} currently used in this TabPanel + * @return {Ext.tab.Bar} The TabBar + */ + getTabBar: function() { + return this.tabBar; + }, + + /** + * @ignore + * Makes sure we have a Tab for each item added to the TabPanel + */ + onAdd: function(item, index) { + var me = this, + cfg = item.tabConfig || {}, + defaultConfig = { + xtype: 'tab', + card: item, + disabled: item.disabled, + closable: item.closable, + hidden: item.hidden, + tabBar: me.tabBar + }; + + if (item.closeText) { + defaultConfig.closeText = item.closeText; + } + cfg = Ext.applyIf(cfg, defaultConfig); + item.tab = me.tabBar.insert(index, cfg); + + item.on({ + scope : me, + enable: me.onItemEnable, + disable: me.onItemDisable, + beforeshow: me.onItemBeforeShow, + iconchange: me.onItemIconChange, + titlechange: me.onItemTitleChange + }); + + if (item.isPanel) { + if (me.removePanelHeader) { + item.preventHeader = true; + if (item.rendered) { + item.updateHeader(); + } + } + if (item.isPanel && me.border) { + item.setBorder(false); + } + } + + // ensure that there is at least one active tab + if (this.rendered && me.items.getCount() === 1) { + me.setActiveTab(0); + } + }, + + /** + * @private + * Enable corresponding tab when item is enabled. + */ + onItemEnable: function(item){ + item.tab.enable(); + }, + + /** + * @private + * Disable corresponding tab when item is enabled. + */ + onItemDisable: function(item){ + item.tab.disable(); + }, + + /** + * @private + * Sets activeTab before item is shown. + */ + onItemBeforeShow: function(item) { + if (item !== this.activeTab) { + this.setActiveTab(item); + return false; } - - me.callParent(); }, - - setColumnLines: function(show) { + + /** + * @private + * Update the tab iconCls when panel iconCls has been set or changed. + */ + onItemIconChange: function(item, newIconCls) { + item.tab.setIconCls(newIconCls); + this.getTabBar().doLayout(); + }, + + /** + * @private + * Update the tab title when panel title has been set or changed. + */ + onItemTitleChange: function(item, newTitle) { + item.tab.setText(newTitle); + this.getTabBar().doLayout(); + }, + + + /** + * @ignore + * If we're removing the currently active tab, activate the nearest one. The item is removed when we call super, + * so we can do preprocessing before then to find the card's index + */ + doRemove: function(item, autoDestroy) { var me = this, - method = (show) ? 'addClsWithUI' : 'removeClsWithUI'; - - me[method]('with-col-lines') + items = me.items, + // At this point the item hasn't been removed from the items collection. + // As such, if we want to check if there are no more tabs left, we have to + // check for one, as opposed to 0. + hasItemsLeft = items.getCount() > 1; + + if (me.destroying || !hasItemsLeft) { + me.activeTab = null; + } else if (item === me.activeTab) { + me.setActiveTab(item.next() || items.getAt(0)); + } + me.callParent(arguments); + + // Remove the two references + delete item.tab.card; + delete item.tab; + }, + + /** + * @ignore + * Makes sure we remove the corresponding Tab when an item is removed + */ + onRemove: function(item, autoDestroy) { + var me = this; + + item.un({ + scope : me, + enable: me.onItemEnable, + disable: me.onItemDisable, + beforeshow: me.onItemBeforeShow + }); + if (!me.destroying && item.tab.ownerCt == me.tabBar) { + me.tabBar.remove(item.tab); + } } -});+}); +