Container.js
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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.Container
- * @extends Ext.BoxComponent
- * <p>Base class for any {@link Ext.BoxComponent} that may contain other Components. Containers handle the
- * basic behavior of containing items, namely adding, inserting and removing items.</p>
- *
- * <p>The most commonly used Container classes are {@link Ext.Panel}, {@link Ext.Window} and {@link Ext.TabPanel}.
- * If you do not need the capabilities offered by the aforementioned classes you can create a lightweight
- * Container to be encapsulated by an HTML element to your specifications by using the
- * <tt><b>{@link Ext.Component#autoEl autoEl}</b></tt> config option. This is a useful technique when creating
- * embedded {@link Ext.layout.ColumnLayout column} layouts inside {@link Ext.form.FormPanel FormPanels}
- * for example.</p>
- *
- * <p>The code below illustrates both how to explicitly create a Container, and how to implicitly
- * create one using the <b><tt>'container'</tt></b> xtype:<pre><code>
- // explicitly create a Container
- var embeddedColumns = new Ext.Container({
- autoEl: 'div', // This is the default
- layout: 'column',
- defaults: {
- // implicitly create Container by specifying xtype
- xtype: 'container',
- autoEl: 'div', // This is the default.
- layout: 'form',
- columnWidth: 0.5,
- style: {
- padding: '10px'
- }
- },
- // The two items below will be Ext.Containers, each encapsulated by a <DIV> element.
- items: [{
- items: {
- xtype: 'datefield',
- name: 'startDate',
- fieldLabel: 'Start date'
- }
- }, {
- items: {
- xtype: 'datefield',
- name: 'endDate',
- fieldLabel: 'End date'
- }
- }]
- });</code></pre></p>
- *
- * <p><u><b>Layout</b></u></p>
- * <p>Container classes delegate the rendering of child Components to a layout
- * manager class which must be configured into the Container using the
- * <code><b>{@link #layout}</b></code> configuration property.</p>
- * <p>When either specifying child <code>{@link #items}</code> of a Container,
- * or dynamically {@link #add adding} Components to a Container, remember to
- * consider how you wish the Container to arrange those child elements, and
- * whether those child elements need to be sized using one of Ext's built-in
- * <b><code>{@link #layout}</code></b> schemes. By default, Containers use the
- * {@link Ext.layout.ContainerLayout ContainerLayout} scheme which only
- * renders child components, appending them one after the other inside the
- * Container, and <b>does not apply any sizing</b> at all.</p>
- * <p>A common mistake is when a developer neglects to specify a
- * <b><code>{@link #layout}</code></b> (e.g. widgets like GridPanels or
- * TreePanels are added to Containers for which no <tt><b>{@link #layout}</b></tt>
- * has been specified). If a Container is left to use the default
- * {@link Ext.layout.ContainerLayout ContainerLayout} scheme, none of its
- * child components will be resized, or changed in any way when the Container
- * is resized.</p>
- * <p>Certain layout managers allow dynamic addition of child components.
- * Those that do include {@link Ext.layout.CardLayout},
- * {@link Ext.layout.AnchorLayout}, {@link Ext.layout.FormLayout}, and
- * {@link Ext.layout.TableLayout}. For example:<pre><code>
- // Create the GridPanel.
- var myNewGrid = new Ext.grid.GridPanel({
- store: myStore,
- columns: myColumnModel,
- title: 'Results', // the title becomes the title of the tab
- });
- myTabPanel.add(myNewGrid); // {@link Ext.TabPanel} implicitly uses {@link Ext.layout.CardLayout CardLayout}
- myTabPanel.{@link Ext.TabPanel#setActiveTab setActiveTab}(myNewGrid);
- * </code></pre></p>
- * <p>The example above adds a newly created GridPanel to a TabPanel. Note that
- * a TabPanel uses {@link Ext.layout.CardLayout} as its layout manager which
- * means all its child items are sized to {@link Ext.layout.FitLayout fit}
- * exactly into its client area.
- * <p><b><u>Overnesting is a common problem</u></b>.
- * An example of overnesting occurs when a GridPanel is added to a TabPanel
- * by wrapping the GridPanel <i>inside</i> a wrapping Panel (that has no
- * <tt><b>{@link #layout}</b></tt> specified) and then add that wrapping Panel
- * to the TabPanel. The point to realize is that a GridPanel <b>is</b> a
- * Component which can be added directly to a Container. If the wrapping Panel
- * has no <tt><b>{@link #layout}</b></tt> configuration, then the overnested
- * GridPanel will not be sized as expected.<p>
- </code></pre>
- *
- * <p><u><b>Adding via remote configuration</b></u></p>
- *
- * <p>A server side script can be used to add Components which are generated dynamically on the server.
- * An example of adding a GridPanel to a TabPanel where the GridPanel is generated by the server
- * based on certain parameters:
- * </p><pre><code>
- // execute an Ajax request to invoke server side script:
- Ext.Ajax.request({
- url: 'gen-invoice-grid.php',
- // send additional parameters to instruct server script
- params: {
- startDate: Ext.getCmp('start-date').getValue(),
- endDate: Ext.getCmp('end-date').getValue()
- },
- // process the response object to add it to the TabPanel:
- success: function(xhr) {
- var newComponent = eval(xhr.responseText); // see discussion below
- myTabPanel.add(newComponent); // add the component to the TabPanel
- myTabPanel.setActiveTab(newComponent);
- },
- failure: function() {
- Ext.Msg.alert("Grid create failed", "Server communication failure");
- }
- });
- </code></pre>
- * <p>The server script needs to return an executable Javascript statement which, when processed
- * using <tt>eval()</tt>, will return either a config object with an {@link Ext.Component#xtype xtype},
- * or an instantiated Component. The server might return this for example:</p><pre><code>
- (function() {
- function formatDate(value){
- return value ? value.dateFormat('M d, Y') : '';
- };
- var store = new Ext.data.Store({
- url: 'get-invoice-data.php',
- baseParams: {
- startDate: '01/01/2008',
- endDate: '01/31/2008'
- },
- reader: new Ext.data.JsonReader({
- record: 'transaction',
- idProperty: 'id',
- totalRecords: 'total'
- }, [
- 'customer',
- 'invNo',
- {name: 'date', type: 'date', dateFormat: 'm/d/Y'},
- {name: 'value', type: 'float'}
- ])
- });
- var grid = new Ext.grid.GridPanel({
- title: 'Invoice Report',
- bbar: new Ext.PagingToolbar(store),
- store: store,
- columns: [
- {header: "Customer", width: 250, dataIndex: 'customer', sortable: true},
- {header: "Invoice Number", width: 120, dataIndex: 'invNo', sortable: true},
- {header: "Invoice Date", width: 100, dataIndex: 'date', renderer: formatDate, sortable: true},
- {header: "Value", width: 120, dataIndex: 'value', renderer: 'usMoney', sortable: true}
- ],
- });
- store.load();
- return grid; // return instantiated component
- })();
- </code></pre>
- * <p>When the above code fragment is passed through the <tt>eval</tt> function in the success handler
- * of the Ajax request, the code is executed by the Javascript processor, and the anonymous function
- * runs, and returns the instantiated grid component.</p>
- * <p>Note: since the code above is <i>generated</i> by a server script, the <tt>baseParams</tt> for
- * the Store, the metadata to allow generation of the Record layout, and the ColumnModel
- * can all be generated into the code since these are all known on the server.</p>
- *
- * @xtype container
- */
- Ext.Container = Ext.extend(Ext.BoxComponent, {
- /**
- * @cfg {Boolean} monitorResize
- * True to automatically monitor window resize events to handle anything that is sensitive to the current size
- * of the viewport. This value is typically managed by the chosen <code>{@link #layout}</code> and should not need
- * to be set manually.
- */
- /**
- * @cfg {String/Object} layout
- * When creating complex UIs, it is important to remember that sizing and
- * positioning of child items is the responsibility of the Container's
- * layout manager. If you expect child items to be sized in response to
- * user interactions, <b>you must specify a layout manager</b> which
- * creates and manages the type of layout you have in mind. For example:<pre><code>
- new Ext.Window({
- width:300, height: 300,
- layout: 'fit', // explicitly set layout manager: override the default (layout:'auto')
- items: [{
- title: 'Panel inside a Window'
- }]
- }).show();
- * </code></pre>
- * <p>Omitting the {@link #layout} config means that the
- * {@link Ext.layout.ContainerLayout default layout manager} will be used which does
- * nothing but render child components sequentially into the Container (no sizing or
- * positioning will be performed in this situation).</p>
- * <p>The layout manager class for this container may be specified as either as an
- * Object or as a String:</p>
- * <div><ul class="mdetail-params">
- *
- * <li><u>Specify as an Object</u></li>
- * <div><ul class="mdetail-params">
- * <li>Example usage:</li>
- <pre><code>
- layout: {
- type: 'vbox',
- padding: '5',
- align: 'left'
- }
- </code></pre>
- *
- * <li><tt><b>type</b></tt></li>
- * <br/><p>The layout type to be used for this container. If not specified,
- * a default {@link Ext.layout.ContainerLayout} will be created and used.</p>
- * <br/><p>Valid layout <tt>type</tt> values are:</p>
- * <div class="sub-desc"><ul class="mdetail-params">
- * <li><tt><b>{@link Ext.layout.AbsoluteLayout absolute}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.AccordionLayout accordion}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.AnchorLayout anchor}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.ContainerLayout auto}</b></tt> <b>Default</b></li>
- * <li><tt><b>{@link Ext.layout.BorderLayout border}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.CardLayout card}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.ColumnLayout column}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.FitLayout fit}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.FormLayout form}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.HBoxLayout hbox}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.MenuLayout menu}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.TableLayout table}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.ToolbarLayout toolbar}</b></tt></li>
- * <li><tt><b>{@link Ext.layout.VBoxLayout vbox}</b></tt></li>
- * </ul></div>
- *
- * <li>Layout specific configuration properties</li>
- * <br/><p>Additional layout specific configuration properties may also be
- * specified. For complete details regarding the valid config options for
- * each layout type, see the layout class corresponding to the <tt>type</tt>
- * specified.</p>
- *
- * </ul></div>
- *
- * <li><u>Specify as a String</u></li>
- * <div><ul class="mdetail-params">
- * <li>Example usage:</li>
- <pre><code>
- layout: 'vbox',
- layoutConfig: {
- padding: '5',
- align: 'left'
- }
- </code></pre>
- * <li><tt><b>layout</b></tt></li>
- * <br/><p>The layout <tt>type</tt> to be used for this container (see list
- * of valid layout type values above).</p><br/>
- * <li><tt><b>{@link #layoutConfig}</b></tt></li>
- * <br/><p>Additional layout specific configuration properties. For complete
- * details regarding the valid config options for each layout type, see the
- * layout class corresponding to the <tt>layout</tt> specified.</p>
- * </ul></div></ul></div>
- */
- /**
- * @cfg {Object} layoutConfig
- * This is a config object containing properties specific to the chosen
- * <b><code>{@link #layout}</code></b> if <b><code>{@link #layout}</code></b>
- * has been specified as a <i>string</i>.</p>
- */
- /**
- * @cfg {Boolean/Number} bufferResize
- * When set to true (100 milliseconds) or a number of milliseconds, the layout assigned for this container will buffer
- * the frequency it calculates and does a re-layout of components. This is useful for heavy containers or containers
- * with a large quantity of sub-components for which frequent layout calls would be expensive.
- */
- bufferResize: 100,
- /**
- * @cfg {String/Number} activeItem
- * A string component id or the numeric index of the component that should be initially activated within the
- * container's layout on render. For example, activeItem: 'item-1' or activeItem: 0 (index 0 = the first
- * item in the container's collection). activeItem only applies to layout styles that can display
- * items one at a time (like {@link Ext.layout.AccordionLayout}, {@link Ext.layout.CardLayout} and
- * {@link Ext.layout.FitLayout}). Related to {@link Ext.layout.ContainerLayout#activeItem}.
- */
- /**
- * @cfg {Object/Array} items
- * <pre><b>** IMPORTANT</b>: be sure to specify a <b><code>{@link #layout}</code> ! **</b></pre>
- * <p>A single item, or an array of child Components to be added to this container,
- * for example:</p>
- * <pre><code>
- // specifying a single item
- items: {...},
- layout: 'fit', // specify a layout!
- // specifying multiple items
- items: [{...}, {...}],
- layout: 'anchor', // specify a layout!
- * </code></pre>
- * <p>Each item may be:</p>
- * <div><ul class="mdetail-params">
- * <li>any type of object based on {@link Ext.Component}</li>
- * <li>a fully instanciated object or</li>
- * <li>an object literal that:</li>
- * <div><ul class="mdetail-params">
- * <li>has a specified <code>{@link Ext.Component#xtype xtype}</code></li>
- * <li>the {@link Ext.Component#xtype} specified is associated with the Component
- * desired and should be chosen from one of the available xtypes as listed
- * in {@link Ext.Component}.</li>
- * <li>If an <code>{@link Ext.Component#xtype xtype}</code> is not explicitly
- * specified, the {@link #defaultType} for that Container is used.</li>
- * <li>will be "lazily instanciated", avoiding the overhead of constructing a fully
- * instanciated Component object</li>
- * </ul></div></ul></div>
- * <p><b>Notes</b>:</p>
- * <div><ul class="mdetail-params">
- * <li>Ext uses lazy rendering. Child Components will only be rendered
- * should it become necessary. Items are automatically laid out when they are first
- * shown (no sizing is done while hidden), or in response to a {@link #doLayout} call.</li>
- * <li>Do not specify <code>{@link Ext.Panel#contentEl contentEl}</code>/
- * <code>{@link Ext.Panel#html html}</code> with <code>items</code>.</li>
- * </ul></div>
- */
- /**
- * @cfg {Object} defaults
- * <p>A config object that will be applied to all components added to this container either via the {@link #items}
- * config or via the {@link #add} or {@link #insert} methods. The <tt>defaults</tt> config can contain any
- * number of name/value property pairs to be added to each item, and should be valid for the types of items
- * being added to the container. For example, to automatically apply padding to the body of each of a set of
- * contained {@link Ext.Panel} items, you could pass: <tt>defaults: {bodyStyle:'padding:15px'}</tt>.</p><br/>
- * <p><b>Note</b>: <tt>defaults</tt> will not be applied to config objects if the option is already specified.
- * For example:</p><pre><code>
- defaults: { // defaults are applied to items, not the container
- autoScroll:true
- },
- items: [
- {
- xtype: 'panel', // defaults <b>do not</b> have precedence over
- id: 'panel1', // options in config objects, so the defaults
- autoScroll: false // will not be applied here, panel1 will be autoScroll:false
- },
- new Ext.Panel({ // defaults <b>do</b> have precedence over options
- id: 'panel2', // options in components, so the defaults
- autoScroll: false // will be applied here, panel2 will be autoScroll:true.
- })
- ]
- * </code></pre>
- */
- /** @cfg {Boolean} autoDestroy
- * If true the container will automatically destroy any contained component that is removed from it, else
- * destruction must be handled manually (defaults to true).
- */
- autoDestroy : true,
- /** @cfg {Boolean} forceLayout
- * If true the container will force a layout initially even if hidden or collapsed. This option
- * is useful for forcing forms to render in collapsed or hidden containers. (defaults to false).
- */
- forceLayout: false,
- /** @cfg {Boolean} hideBorders
- * True to hide the borders of each contained component, false to defer to the component's existing
- * border settings (defaults to false).
- */
- /** @cfg {String} defaultType
- * <p>The default {@link Ext.Component xtype} of child Components to create in this Container when
- * a child item is specified as a raw configuration object, rather than as an instantiated Component.</p>
- * <p>Defaults to <tt>'panel'</tt>, except {@link Ext.menu.Menu} which defaults to <tt>'menuitem'</tt>,
- * and {@link Ext.Toolbar} and {@link Ext.ButtonGroup} which default to <tt>'button'</tt>.</p>
- */
- defaultType : 'panel',
- // private
- initComponent : function(){
- Ext.Container.superclass.initComponent.call(this);
- this.addEvents(
- /**
- * @event afterlayout
- * Fires when the components in this container are arranged by the associated layout manager.
- * @param {Ext.Container} this
- * @param {ContainerLayout} layout The ContainerLayout implementation for this container
- */
- 'afterlayout',
- /**
- * @event beforeadd
- * Fires before any {@link Ext.Component} is added or inserted into the container.
- * A handler can return false to cancel the add.
- * @param {Ext.Container} this
- * @param {Ext.Component} component The component being added
- * @param {Number} index The index at which the component will be added to the container's items collection
- */
- 'beforeadd',
- /**
- * @event beforeremove
- * Fires before any {@link Ext.Component} is removed from the container. A handler can return
- * false to cancel the remove.
- * @param {Ext.Container} this
- * @param {Ext.Component} component The component being removed
- */
- 'beforeremove',
- /**
- * @event add
- * @bubbles
- * Fires after any {@link Ext.Component} is added or inserted into the container.
- * @param {Ext.Container} this
- * @param {Ext.Component} component The component that was added
- * @param {Number} index The index at which the component was added to the container's items collection
- */
- 'add',
- /**
- * @event remove
- * @bubbles
- * Fires after any {@link Ext.Component} is removed from the container.
- * @param {Ext.Container} this
- * @param {Ext.Component} component The component that was removed
- */
- 'remove'
- );
- this.enableBubble('add', 'remove');
- /**
- * The collection of components in this container as a {@link Ext.util.MixedCollection}
- * @type MixedCollection
- * @property items
- */
- var items = this.items;
- if(items){
- delete this.items;
- if(Ext.isArray(items) && items.length > 0){
- this.add.apply(this, items);
- }else{
- this.add(items);
- }
- }
- },
- // private
- initItems : function(){
- if(!this.items){
- this.items = new Ext.util.MixedCollection(false, this.getComponentId);
- this.getLayout(); // initialize the layout
- }
- },
- // private
- setLayout : function(layout){
- if(this.layout && this.layout != layout){
- this.layout.setContainer(null);
- }
- this.initItems();
- this.layout = layout;
- layout.setContainer(this);
- },
- // private
- render : function(){
- Ext.Container.superclass.render.apply(this, arguments);
- if(this.layout){
- if(Ext.isObject(this.layout) && !this.layout.layout){
- this.layoutConfig = this.layout;
- this.layout = this.layoutConfig.type;
- }
- if(typeof this.layout == 'string'){
- this.layout = new Ext.Container.LAYOUTS[this.layout.toLowerCase()](this.layoutConfig);
- }
- this.setLayout(this.layout);
- if(this.activeItem !== undefined){
- var item = this.activeItem;
- delete this.activeItem;
- this.layout.setActiveItem(item);
- }
- }
- if(!this.ownerCt){
- // force a layout if no ownerCt is set
- this.doLayout(false, true);
- }
- if(this.monitorResize === true){
- Ext.EventManager.onWindowResize(this.doLayout, this, [false]);
- }
- },
- /**
- * <p>Returns the Element to be used to contain the child Components of this Container.</p>
- * <p>An implementation is provided which returns the Container's {@link #getEl Element}, but
- * if there is a more complex structure to a Container, this may be overridden to return
- * the element into which the {@link #layout layout} renders child Components.</p>
- * @return {Ext.Element} The Element to render child Components into.
- */
- getLayoutTarget : function(){
- return this.el;
- },
- // private - used as the key lookup function for the items collection
- getComponentId : function(comp){
- return comp.getItemId();
- },
- /**
- * <p>Adds {@link Ext.Component Component}(s) to this Container.</p>
- * <br><p><b>Description</b></u> :
- * <div><ul class="mdetail-params">
- * <li>Fires the {@link #beforeadd} event before adding</li>
- * <li>The Container's {@link #defaults default config values} will be applied
- * accordingly (see <code>{@link #defaults}</code> for details).</li>
- * <li>Fires the {@link #add} event after the component has been added.</li>
- * </ul></div>
- * <br><p><b>Notes</b></u> :
- * <div><ul class="mdetail-params">
- * <li>If the Container is <i>already rendered</i> when <tt>add</tt>
- * is called, you may need to call {@link #doLayout} to refresh the view which causes
- * any unrendered child Components to be rendered. This is required so that you can
- * <tt>add</tt> multiple child components if needed while only refreshing the layout
- * once. For example:<pre><code>
- var tb = new {@link Ext.Toolbar}();
- tb.render(document.body); // toolbar is rendered
- tb.add({text:'Button 1'}); // add multiple items ({@link #defaultType} for {@link Ext.Toolbar Toolbar} is 'button')
- tb.add({text:'Button 2'});
- tb.{@link #doLayout}(); // refresh the layout
- * </code></pre></li>
- * <li><i>Warning:</i> Containers directly managed by the BorderLayout layout manager
- * may not be removed or added. See the Notes for {@link Ext.layout.BorderLayout BorderLayout}
- * for more details.</li>
- * </ul></div>
- * @param {Object/Array} component
- * <p>Either a single component or an Array of components to add. See
- * <code>{@link #items}</code> for additional information.</p>
- * @param {Object} (Optional) component_2
- * @param {Object} (Optional) component_n
- * @return {Ext.Component} component The Component (or config object) that was added.
- */
- add : function(comp){
- this.initItems();
- var args = arguments.length > 1;
- if(args || Ext.isArray(comp)){
- Ext.each(args ? arguments : comp, function(c){
- this.add(c);
- }, this);
- return;
- }
- var c = this.lookupComponent(this.applyDefaults(comp));
- var pos = this.items.length;
- if(this.fireEvent('beforeadd', this, c, pos) !== false && this.onBeforeAdd(c) !== false){
- this.items.add(c);
- c.ownerCt = this;
- this.fireEvent('add', this, c, pos);
- }
- return c;
- },
- /**
- * Inserts a Component into this Container at a specified index. Fires the
- * {@link #beforeadd} event before inserting, then fires the {@link #add} event after the
- * Component has been inserted.
- * @param {Number} index The index at which the Component will be inserted
- * into the Container's items collection
- * @param {Ext.Component} component The child Component to insert.<br><br>
- * Ext uses lazy rendering, and will only render the inserted Component should
- * it become necessary.<br><br>
- * A Component config object may be passed in order to avoid the overhead of
- * constructing a real Component object if lazy rendering might mean that the
- * inserted Component will not be rendered immediately. To take advantage of
- * this 'lazy instantiation', set the {@link Ext.Component#xtype} config
- * property to the registered type of the Component wanted.<br><br>
- * For a list of all available xtypes, see {@link Ext.Component}.
- * @return {Ext.Component} component The Component (or config object) that was
- * inserted with the Container's default config values applied.
- */
- insert : function(index, comp){
- this.initItems();
- var a = arguments, len = a.length;
- if(len > 2){
- for(var i = len-1; i >= 1; --i) {
- this.insert(index, a[i]);
- }
- return;
- }
- var c = this.lookupComponent(this.applyDefaults(comp));
- if(c.ownerCt == this && this.items.indexOf(c) < index){
- --index;
- }
- if(this.fireEvent('beforeadd', this, c, index) !== false && this.onBeforeAdd(c) !== false){
- this.items.insert(index, c);
- c.ownerCt = this;
- this.fireEvent('add', this, c, index);
- }
- return c;
- },
- // private
- applyDefaults : function(c){
- if(this.defaults){
- if(typeof c == 'string'){
- c = Ext.ComponentMgr.get(c);
- Ext.apply(c, this.defaults);
- }else if(!c.events){
- Ext.applyIf(c, this.defaults);
- }else{
- Ext.apply(c, this.defaults);
- }
- }
- return c;
- },
- // private
- onBeforeAdd : function(item){
- if(item.ownerCt){
- item.ownerCt.remove(item, false);
- }
- if(this.hideBorders === true){
- item.border = (item.border === true);
- }
- },
- /**
- * Removes a component from this container. Fires the {@link #beforeremove} event before removing, then fires
- * the {@link #remove} event after the component has been removed.
- * @param {Component/String} component The component reference or id to remove.
- * @param {Boolean} autoDestroy (optional) True to automatically invoke the removed Component's {@link Ext.Component#destroy} function.
- * Defaults to the value of this Container's {@link #autoDestroy} config.
- * @return {Ext.Component} component The Component that was removed.
- */
- remove : function(comp, autoDestroy){
- this.initItems();
- var c = this.getComponent(comp);
- if(c && this.fireEvent('beforeremove', this, c) !== false){
- this.items.remove(c);
- delete c.ownerCt;
- if(autoDestroy === true || (autoDestroy !== false && this.autoDestroy)){
- c.destroy();
- }
- if(this.layout && this.layout.activeItem == c){
- delete this.layout.activeItem;
- }
- this.fireEvent('remove', this, c);
- }
- return c;
- },
- /**
- * Removes all components from this container.
- * @param {Boolean} autoDestroy (optional) True to automatically invoke the removed Component's {@link Ext.Component#destroy} function.
- * Defaults to the value of this Container's {@link #autoDestroy} config.
- * @return {Array} Array of the destroyed components
- */
- removeAll: function(autoDestroy){
- this.initItems();
- var item, rem = [], items = [];
- this.items.each(function(i){
- rem.push(i);
- });
- for (var i = 0, len = rem.length; i < len; ++i){
- item = rem[i];
- this.remove(item, autoDestroy);
- if(item.ownerCt !== this){
- items.push(item);
- }
- }
- return items;
- },
- /**
- * Examines this container's <code>{@link #items}</code> <b>property</b>
- * and gets a direct child component of this container.
- * @param {String/Number} comp 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 #items}</code> <b>property</b></li>
- * </ul></div>
- * <p>For additional information see {@link Ext.util.MixedCollection#get}.
- * @return Ext.Component The component (if found).
- */
- getComponent : function(comp){
- if(Ext.isObject(comp)){
- return comp;
- }
- return this.items.get(comp);
- },
- // private
- lookupComponent : function(comp){
- if(typeof comp == 'string'){
- return Ext.ComponentMgr.get(comp);
- }else if(!comp.events){
- return this.createComponent(comp);
- }
- return comp;
- },
- // private
- createComponent : function(config){
- return Ext.create(config, this.defaultType);
- },
- /**
- * Force this container's layout to be recalculated. A call to this function is required after adding a new component
- * to an already rendered container, or possibly after changing sizing/position properties of child components.
- * @param {Boolean} shallow (optional) True to only calc the layout of this component, and let child components auto
- * calc layouts as required (defaults to false, which calls doLayout recursively for each subcontainer)
- * @param {Boolean} force (optional) True to force a layout to occur, even if the item is hidden.
- * @return {Ext.Container} this
- */
- doLayout: function(shallow, force){
- var rendered = this.rendered,
- forceLayout = this.forceLayout;
- if(!this.isVisible() || this.collapsed){
- this.deferLayout = this.deferLayout || !shallow;
- if(!(force || forceLayout)){
- return;
- }
- shallow = shallow && !this.deferLayout;
- } else {
- delete this.deferLayout;
- }
- if(rendered && this.layout){
- this.layout.layout();
- }
- if(shallow !== true && this.items){
- var cs = this.items.items;
- for(var i = 0, len = cs.length; i < len; i++){
- var c = cs[i];
- if(c.doLayout){
- c.forceLayout = forceLayout;
- c.doLayout();
- }
- }
- }
- if(rendered){
- this.onLayout(shallow, force);
- }
- delete this.forceLayout;
- },
- //private
- onLayout : Ext.emptyFn,
- onShow : function(){
- Ext.Container.superclass.onShow.call(this);
- if(this.deferLayout !== undefined){
- this.doLayout(true);
- }
- },
- /**
- * Returns the layout currently in use by the container. If the container does not currently have a layout
- * set, a default {@link Ext.layout.ContainerLayout} will be created and set as the container's layout.
- * @return {ContainerLayout} layout The container's layout
- */
- getLayout : function(){
- if(!this.layout){
- var layout = new Ext.layout.ContainerLayout(this.layoutConfig);
- this.setLayout(layout);
- }
- return this.layout;
- },
- // private
- beforeDestroy : function(){
- if(this.items){
- Ext.destroy.apply(Ext, this.items.items);
- }
- if(this.monitorResize){
- Ext.EventManager.removeResizeListener(this.doLayout, this);
- }
- Ext.destroy(this.layout);
- Ext.Container.superclass.beforeDestroy.call(this);
- },
- /**
- * Bubbles up the component/container heirarchy, calling the specified function with each component. The scope (<i>this</i>) of
- * function call will be the scope provided or the current component. The arguments to the function
- * will be the args provided or the current component. If the function returns false at any point,
- * the bubble is stopped.
- * @param {Function} fn The function to call
- * @param {Object} scope (optional) The scope of the function (defaults to current node)
- * @param {Array} args (optional) The args to call the function with (default to passing the current component)
- * @return {Ext.Container} this
- */
- bubble : function(fn, scope, args){
- var p = this;
- while(p){
- if(fn.apply(scope || p, args || [p]) === false){
- break;
- }
- p = p.ownerCt;
- }
- return this;
- },
- /**
- * Cascades down the component/container heirarchy from this component (called first), calling the specified function with
- * each component. The scope (<i>this</i>) of
- * function call will be the scope provided or the current component. The arguments to the function
- * will be the args provided or the current component. If the function returns false at any point,
- * the cascade is stopped on that branch.
- * @param {Function} fn The function to call
- * @param {Object} scope (optional) The scope of the function (defaults to current component)
- * @param {Array} args (optional) The args to call the function with (defaults to passing the current component)
- * @return {Ext.Container} this
- */
- cascade : function(fn, scope, args){
- if(fn.apply(scope || this, args || [this]) !== false){
- if(this.items){
- var cs = this.items.items;
- for(var i = 0, len = cs.length; i < len; i++){
- if(cs[i].cascade){
- cs[i].cascade(fn, scope, args);
- }else{
- fn.apply(scope || cs[i], args || [cs[i]]);
- }
- }
- }
- }
- return this;
- },
- /**
- * Find a component under this container at any level by id
- * @param {String} id
- * @return Ext.Component
- */
- findById : function(id){
- var m, ct = this;
- this.cascade(function(c){
- if(ct != c && c.id === id){
- m = c;
- return false;
- }
- });
- return m || null;
- },
- /**
- * Find a component under this container at any level by xtype or class
- * @param {String/Class} xtype The xtype string for a component, or the class of the component directly
- * @param {Boolean} shallow (optional) False to check whether this Component is descended from the xtype (this is
- * the default), or true to check whether this Component is directly of the specified xtype.
- * @return {Array} Array of Ext.Components
- */
- findByType : function(xtype, shallow){
- return this.findBy(function(c){
- return c.isXType(xtype, shallow);
- });
- },
- /**
- * Find a component under this container at any level by property
- * @param {String} prop
- * @param {String} value
- * @return {Array} Array of Ext.Components
- */
- find : function(prop, value){
- return this.findBy(function(c){
- return c[prop] === value;
- });
- },
- /**
- * Find a component under this container at any level by a custom function. If the passed function returns
- * true, the component will be included in the results. The passed function is called with the arguments (component, this container).
- * @param {Function} fn The function to call
- * @param {Object} scope (optional)
- * @return {Array} Array of Ext.Components
- */
- findBy : function(fn, scope){
- var m = [], ct = this;
- this.cascade(function(c){
- if(ct != c && fn.call(scope || c, c, ct) === true){
- m.push(c);
- }
- });
- return m;
- },
- /**
- * Get a component contained by this container (alias for items.get(key))
- * @param {String/Number} key The index or id of the component
- * @return {Ext.Component} Ext.Component
- */
- get : function(key){
- return this.items.get(key);
- }
- });
- Ext.Container.LAYOUTS = {};
- Ext.reg('container', Ext.Container);