Component.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.Component
- * @extends Ext.util.Observable
- * <p>Base class for all Ext components. All subclasses of Component may participate in the automated
- * Ext component lifecycle of creation, rendering and destruction which is provided by the {@link Ext.Container Container} class.
- * Components may be added to a Container through the {@link Ext.Container#items items} config option at the time the Container is created,
- * or they may be added dynamically via the {@link Ext.Container#add add} method.</p>
- * <p>The Component base class has built-in support for basic hide/show and enable/disable behavior.</p>
- * <p>All Components are registered with the {@link Ext.ComponentMgr} on construction so that they can be referenced at any time via
- * {@link Ext#getCmp}, passing the {@link #id}.</p>
- * <p>All user-developed visual widgets that are required to participate in automated lifecycle and size management should subclass Component (or
- * {@link Ext.BoxComponent} if managed box model handling is required, ie height and width management).</p>
- * <p>See the <a href="http://extjs.com/learn/Tutorial:Creating_new_UI_controls">Creating new UI controls</a> tutorial for details on how
- * and to either extend or augment ExtJs base classes to create custom Components.</p>
- * <p>Every component has a specific xtype, which is its Ext-specific type name, along with methods for checking the
- * xtype like {@link #getXType} and {@link #isXType}. This is the list of all valid xtypes:</p>
- * <pre>
- xtype Class
- ------------- ------------------
- box {@link Ext.BoxComponent}
- button {@link Ext.Button}
- buttongroup {@link Ext.ButtonGroup}
- colorpalette {@link Ext.ColorPalette}
- component {@link Ext.Component}
- container {@link Ext.Container}
- cycle {@link Ext.CycleButton}
- dataview {@link Ext.DataView}
- datepicker {@link Ext.DatePicker}
- editor {@link Ext.Editor}
- editorgrid {@link Ext.grid.EditorGridPanel}
- flash {@link Ext.FlashComponent}
- grid {@link Ext.grid.GridPanel}
- listview {@link Ext.ListView}
- panel {@link Ext.Panel}
- progress {@link Ext.ProgressBar}
- propertygrid {@link Ext.grid.PropertyGrid}
- slider {@link Ext.Slider}
- spacer {@link Ext.Spacer}
- splitbutton {@link Ext.SplitButton}
- tabpanel {@link Ext.TabPanel}
- treepanel {@link Ext.tree.TreePanel}
- viewport {@link Ext.ViewPort}
- window {@link Ext.Window}
- Toolbar components
- ---------------------------------------
- paging {@link Ext.PagingToolbar}
- toolbar {@link Ext.Toolbar}
- tbbutton {@link Ext.Toolbar.Button} (deprecated; use button)
- tbfill {@link Ext.Toolbar.Fill}
- tbitem {@link Ext.Toolbar.Item}
- tbseparator {@link Ext.Toolbar.Separator}
- tbspacer {@link Ext.Toolbar.Spacer}
- tbsplit {@link Ext.Toolbar.SplitButton} (deprecated; use splitbutton)
- tbtext {@link Ext.Toolbar.TextItem}
- Menu components
- ---------------------------------------
- menu {@link Ext.menu.Menu}
- colormenu {@link Ext.menu.ColorMenu}
- datemenu {@link Ext.menu.DateMenu}
- menubaseitem {@link Ext.menu.BaseItem}
- menucheckitem {@link Ext.menu.CheckItem}
- menuitem {@link Ext.menu.Item}
- menuseparator {@link Ext.menu.Separator}
- menutextitem {@link Ext.menu.TextItem}
- Form components
- ---------------------------------------
- form {@link Ext.FormPanel}
- checkbox {@link Ext.form.Checkbox}
- checkboxgroup {@link Ext.form.CheckboxGroup}
- combo {@link Ext.form.ComboBox}
- datefield {@link Ext.form.DateField}
- displayfield {@link Ext.form.DisplayField}
- field {@link Ext.form.Field}
- fieldset {@link Ext.form.FieldSet}
- hidden {@link Ext.form.Hidden}
- htmleditor {@link Ext.form.HtmlEditor}
- label {@link Ext.form.Label}
- numberfield {@link Ext.form.NumberField}
- radio {@link Ext.form.Radio}
- radiogroup {@link Ext.form.RadioGroup}
- textarea {@link Ext.form.TextArea}
- textfield {@link Ext.form.TextField}
- timefield {@link Ext.form.TimeField}
- trigger {@link Ext.form.TriggerField}
- Chart components
- ---------------------------------------
- chart {@link Ext.chart.Chart}
- barchart {@link Ext.chart.BarChart}
- cartesianchart {@link Ext.chart.CartesianChart}
- columnchart {@link Ext.chart.ColumnChart}
- linechart {@link Ext.chart.LineChart}
- piechart {@link Ext.chart.PieChart}
- Store xtypes
- ---------------------------------------
- arraystore {@link Ext.data.ArrayStore}
- directstore {@link Ext.data.DirectStore}
- groupingstore {@link Ext.data.GroupingStore}
- jsonstore {@link Ext.data.JsonStore}
- simplestore {@link Ext.data.SimpleStore} (deprecated; use arraystore)
- store {@link Ext.data.Store}
- xmlstore {@link Ext.data.XmlStore}
- </pre>
- * @constructor
- * @param {Ext.Element/String/Object} config The configuration options may be specified as either:
- * <div class="mdetail-params"><ul>
- * <li><b>an element</b> :
- * <p class="sub-desc">it is set as the internal element and its id used as the component id</p></li>
- * <li><b>a string</b> :
- * <p class="sub-desc">it is assumed to be the id of an existing element and is used as the component id</p></li>
- * <li><b>anything else</b> :
- * <p class="sub-desc">it is assumed to be a standard config object and is applied to the component</p></li>
- * </ul></div>
- */
- Ext.Component = function(config){
- config = config || {};
- if(config.initialConfig){
- if(config.isAction){ // actions
- this.baseAction = config;
- }
- config = config.initialConfig; // component cloning / action set up
- }else if(config.tagName || config.dom || Ext.isString(config)){ // element object
- config = {applyTo: config, id: config.id || config};
- }
- /**
- * This Component's initial configuration specification. Read-only.
- * @type Object
- * @property initialConfig
- */
- this.initialConfig = config;
- Ext.apply(this, config);
- this.addEvents(
- /**
- * @event disable
- * Fires after the component is disabled.
- * @param {Ext.Component} this
- */
- 'disable',
- /**
- * @event enable
- * Fires after the component is enabled.
- * @param {Ext.Component} this
- */
- 'enable',
- /**
- * @event beforeshow
- * Fires before the component is shown by calling the {@link #show} method.
- * Return false from an event handler to stop the show.
- * @param {Ext.Component} this
- */
- 'beforeshow',
- /**
- * @event show
- * Fires after the component is shown when calling the {@link #show} method.
- * @param {Ext.Component} this
- */
- 'show',
- /**
- * @event beforehide
- * Fires before the component is hidden by calling the {@link #hide} method.
- * Return false from an event handler to stop the hide.
- * @param {Ext.Component} this
- */
- 'beforehide',
- /**
- * @event hide
- * Fires after the component is hidden.
- * Fires after the component is hidden when calling the {@link #hide} method.
- * @param {Ext.Component} this
- */
- 'hide',
- /**
- * @event beforerender
- * Fires before the component is {@link #rendered}. Return false from an
- * event handler to stop the {@link #render}.
- * @param {Ext.Component} this
- */
- 'beforerender',
- /**
- * @event render
- * Fires after the component markup is {@link #rendered}.
- * @param {Ext.Component} this
- */
- 'render',
- /**
- * @event afterrender
- * <p>Fires after the component rendering is finished.</p>
- * <p>The afterrender event is fired after this Component has been {@link #rendered}, been postprocesed
- * by any afterRender method defined for the Component, and, if {@link #stateful}, after state
- * has been restored.</p>
- * @param {Ext.Component} this
- */
- 'afterrender',
- /**
- * @event beforedestroy
- * Fires before the component is {@link #destroy}ed. Return false from an event handler to stop the {@link #destroy}.
- * @param {Ext.Component} this
- */
- 'beforedestroy',
- /**
- * @event destroy
- * Fires after the component is {@link #destroy}ed.
- * @param {Ext.Component} this
- */
- 'destroy',
- /**
- * @event beforestaterestore
- * Fires before the state of the component is restored. Return false from an event handler to stop the restore.
- * @param {Ext.Component} this
- * @param {Object} state The hash of state values returned from the StateProvider. If this
- * event is not vetoed, then the state object is passed to <b><tt>applyState</tt></b>. By default,
- * that simply copies property values into this Component. The method maybe overriden to
- * provide custom state restoration.
- */
- 'beforestaterestore',
- /**
- * @event staterestore
- * Fires after the state of the component is restored.
- * @param {Ext.Component} this
- * @param {Object} state The hash of state values returned from the StateProvider. This is passed
- * to <b><tt>applyState</tt></b>. By default, that simply copies property values into this
- * Component. The method maybe overriden to provide custom state restoration.
- */
- 'staterestore',
- /**
- * @event beforestatesave
- * Fires before the state of the component is saved to the configured state provider. Return false to stop the save.
- * @param {Ext.Component} this
- * @param {Object} state The hash of state values. This is determined by calling
- * <b><tt>getState()</tt></b> on the Component. This method must be provided by the
- * developer to return whetever representation of state is required, by default, Ext.Component
- * has a null implementation.
- */
- 'beforestatesave',
- /**
- * @event statesave
- * Fires after the state of the component is saved to the configured state provider.
- * @param {Ext.Component} this
- * @param {Object} state The hash of state values. This is determined by calling
- * <b><tt>getState()</tt></b> on the Component. This method must be provided by the
- * developer to return whetever representation of state is required, by default, Ext.Component
- * has a null implementation.
- */
- 'statesave'
- );
- this.getId();
- Ext.ComponentMgr.register(this);
- Ext.Component.superclass.constructor.call(this);
- if(this.baseAction){
- this.baseAction.addComponent(this);
- }
- this.initComponent();
- if(this.plugins){
- if(Ext.isArray(this.plugins)){
- for(var i = 0, len = this.plugins.length; i < len; i++){
- this.plugins[i] = this.initPlugin(this.plugins[i]);
- }
- }else{
- this.plugins = this.initPlugin(this.plugins);
- }
- }
- if(this.stateful !== false){
- this.initState(config);
- }
- if(this.applyTo){
- this.applyToMarkup(this.applyTo);
- delete this.applyTo;
- }else if(this.renderTo){
- this.render(this.renderTo);
- delete this.renderTo;
- }
- };
- // private
- Ext.Component.AUTO_ID = 1000;
- Ext.extend(Ext.Component, Ext.util.Observable, {
- // Configs below are used for all Components when rendered by FormLayout.
- /**
- * @cfg {String} fieldLabel <p>The label text to display next to this Component (defaults to '').</p>
- * <br><p><b>Note</b>: this config is only used when this Component is rendered by a Container which
- * has been configured to use the <b>{@link Ext.layout.FormLayout FormLayout}</b> layout manager (e.g.
- * {@link Ext.form.FormPanel} or specifying <tt>layout:'form'</tt>).</p><br>
- * <p>Also see <tt>{@link #hideLabel}</tt> and
- * {@link Ext.layout.FormLayout}.{@link Ext.layout.FormLayout#fieldTpl fieldTpl}.</p>
- * Example use:<pre><code>
- new Ext.FormPanel({
- height: 100,
- renderTo: Ext.getBody(),
- items: [{
- xtype: 'textfield',
- fieldLabel: 'Name'
- }]
- });
- </code></pre>
- */
- /**
- * @cfg {String} labelStyle <p>A CSS style specification string to apply directly to this field's
- * label. Defaults to the container's labelStyle value if set (e.g.,
- * <tt>{@link Ext.layout.FormLayout#labelStyle}</tt> , or '').</p>
- * <br><p><b>Note</b>: see the note for <code>{@link #clearCls}</code>.</p><br>
- * <p>Also see <code>{@link #hideLabel}</code> and
- * <code>{@link Ext.layout.FormLayout}.{@link Ext.layout.FormLayout#fieldTpl fieldTpl}.</code></p>
- * Example use:<pre><code>
- new Ext.FormPanel({
- height: 100,
- renderTo: Ext.getBody(),
- items: [{
- xtype: 'textfield',
- fieldLabel: 'Name',
- labelStyle: 'font-weight:bold;'
- }]
- });
- </code></pre>
- */
- /**
- * @cfg {String} labelSeparator <p>The separator to display after the text of each
- * <tt>{@link #fieldLabel}</tt>. This property may be configured at various levels.
- * The order of precedence is:
- * <div class="mdetail-params"><ul>
- * <li>field / component level</li>
- * <li>container level</li>
- * <li>{@link Ext.layout.FormLayout#labelSeparator layout level} (defaults to colon <tt>':'</tt>)</li>
- * </ul></div>
- * To display no separator for this field's label specify empty string ''.</p>
- * <br><p><b>Note</b>: see the note for <tt>{@link #clearCls}</tt>.</p><br>
- * <p>Also see <tt>{@link #hideLabel}</tt> and
- * {@link Ext.layout.FormLayout}.{@link Ext.layout.FormLayout#fieldTpl fieldTpl}.</p>
- * Example use:<pre><code>
- new Ext.FormPanel({
- height: 100,
- renderTo: Ext.getBody(),
- layoutConfig: {
- labelSeparator: '~' // layout config has lowest priority (defaults to ':')
- },
- {@link Ext.layout.FormLayout#labelSeparator labelSeparator}: '>>', // config at container level
- items: [{
- xtype: 'textfield',
- fieldLabel: 'Field 1',
- labelSeparator: '...' // field/component level config supersedes others
- },{
- xtype: 'textfield',
- fieldLabel: 'Field 2' // labelSeparator will be '='
- }]
- });
- </code></pre>
- */
- /**
- * @cfg {Boolean} hideLabel <p><tt>true</tt> to completely hide the label element
- * ({@link #fieldLabel label} and {@link #labelSeparator separator}). Defaults to <tt>false</tt>.
- * By default, even if you do not specify a <tt>{@link #fieldLabel}</tt> the space will still be
- * reserved so that the field will line up with other fields that do have labels.
- * Setting this to <tt>true</tt> will cause the field to not reserve that space.</p>
- * <br><p><b>Note</b>: see the note for <tt>{@link #clearCls}</tt>.</p><br>
- * Example use:<pre><code>
- new Ext.FormPanel({
- height: 100,
- renderTo: Ext.getBody(),
- items: [{
- xtype: 'textfield'
- hideLabel: true
- }]
- });
- </code></pre>
- */
- /**
- * @cfg {String} clearCls <p>The CSS class used to to apply to the special clearing div rendered
- * directly after each form field wrapper to provide field clearing (defaults to
- * <tt>'x-form-clear-left'</tt>).</p>
- * <br><p><b>Note</b>: this config is only used when this Component is rendered by a Container
- * which has been configured to use the <b>{@link Ext.layout.FormLayout FormLayout}</b> layout
- * manager (e.g. {@link Ext.form.FormPanel} or specifying <tt>layout:'form'</tt>) and either a
- * <tt>{@link #fieldLabel}</tt> is specified or <tt>isFormField=true</tt> is specified.</p><br>
- * <p>See {@link Ext.layout.FormLayout}.{@link Ext.layout.FormLayout#fieldTpl fieldTpl} also.</p>
- */
- /**
- * @cfg {String} itemCls <p>An additional CSS class to apply to the div wrapping the form item
- * element of this field. If supplied, <tt>itemCls</tt> at the <b>field</b> level will override
- * the default <tt>itemCls</tt> supplied at the <b>container</b> level. The value specified for
- * <tt>itemCls</tt> will be added to the default class (<tt>'x-form-item'</tt>).</p>
- * <p>Since it is applied to the item wrapper (see
- * {@link Ext.layout.FormLayout}.{@link Ext.layout.FormLayout#fieldTpl fieldTpl}), it allows
- * you to write standard CSS rules that can apply to the field, the label (if specified), or
- * any other element within the markup for the field.</p>
- * <br><p><b>Note</b>: see the note for <tt>{@link #fieldLabel}</tt>.</p><br>
- * Example use:<pre><code>
- // Apply a style to the field's label:
- <style>
- .required .x-form-item-label {font-weight:bold;color:red;}
- </style>
- new Ext.FormPanel({
- height: 100,
- renderTo: Ext.getBody(),
- items: [{
- xtype: 'textfield',
- fieldLabel: 'Name',
- itemCls: 'required' //this label will be styled
- },{
- xtype: 'textfield',
- fieldLabel: 'Favorite Color'
- }]
- });
- </code></pre>
- */
- // Configs below are used for all Components when rendered by AnchorLayout.
- /**
- * @cfg {String} anchor <p><b>Note</b>: this config is only used when this Component is rendered
- * by a Container which has been configured to use an <b>{@link Ext.layout.AnchorLayout AnchorLayout}</b>
- * based layout manager, for example:<div class="mdetail-params"><ul>
- * <li>{@link Ext.form.FormPanel}</li>
- * <li>specifying <code>layout: 'anchor' // or 'form', or 'absolute'</code></li>
- * </ul></div></p>
- * <p>See {@link Ext.layout.AnchorLayout}.{@link Ext.layout.AnchorLayout#anchor anchor} also.</p>
- */
- /**
- * @cfg {String} id
- * <p>The <b>unique</b> id of this component (defaults to an {@link #getId auto-assigned id}).
- * You should assign an id if you need to be able to access the component later and you do
- * not have an object reference available (e.g., using {@link Ext}.{@link Ext#getCmp getCmp}).</p>
- * <p>Note that this id will also be used as the element id for the containing HTML element
- * that is rendered to the page for this component. This allows you to write id-based CSS
- * rules to style the specific instance of this component uniquely, and also to select
- * sub-elements using this component's id as the parent.</p>
- * <p><b>Note</b>: to avoid complications imposed by a unique <tt>id</tt> also see
- * <code>{@link #itemId}</code> and <code>{@link #ref}</code>.</p>
- * <p><b>Note</b>: to access the container of an item see <code>{@link #ownerCt}</code>.</p>
- */
- /**
- * @cfg {String} itemId
- * <p>An <tt>itemId</tt> can be used as an alternative way to get a reference to a component
- * when no object reference is available. Instead of using an <code>{@link #id}</code> with
- * {@link Ext}.{@link Ext#getCmp getCmp}, use <code>itemId</code> with
- * {@link Ext.Container}.{@link Ext.Container#getComponent getComponent} which will retrieve
- * <code>itemId</code>'s or <tt>{@link #id}</tt>'s. Since <code>itemId</code>'s are an index to the
- * container's internal MixedCollection, the <code>itemId</code> is scoped locally to the container --
- * avoiding potential conflicts with {@link Ext.ComponentMgr} which requires a <b>unique</b>
- * <code>{@link #id}</code>.</p>
- * <pre><code>
- var c = new Ext.Panel({ //
- {@link Ext.BoxComponent#height height}: 300,
- {@link #renderTo}: document.body,
- {@link Ext.Container#layout layout}: 'auto',
- {@link Ext.Container#items items}: [
- {
- itemId: 'p1',
- {@link Ext.Panel#title title}: 'Panel 1',
- {@link Ext.BoxComponent#height height}: 150
- },
- {
- itemId: 'p2',
- {@link Ext.Panel#title title}: 'Panel 2',
- {@link Ext.BoxComponent#height height}: 150
- }
- ]
- })
- p1 = c.{@link Ext.Container#getComponent getComponent}('p1'); // not the same as {@link Ext#getCmp Ext.getCmp()}
- p2 = p1.{@link #ownerCt}.{@link Ext.Container#getComponent getComponent}('p2'); // reference via a sibling
- * </code></pre>
- * <p>Also see <tt>{@link #id}</tt> and <code>{@link #ref}</code>.</p>
- * <p><b>Note</b>: to access the container of an item see <tt>{@link #ownerCt}</tt>.</p>
- */
- /**
- * @cfg {String} xtype
- * The registered <tt>xtype</tt> to create. This config option is not used when passing
- * a config object into a constructor. This config option is used only when
- * lazy instantiation is being used, and a child item of a Container is being
- * specified not as a fully instantiated Component, but as a <i>Component config
- * object</i>. The <tt>xtype</tt> will be looked up at render time up to determine what
- * type of child Component to create.<br><br>
- * The predefined xtypes are listed {@link Ext.Component here}.
- * <br><br>
- * If you subclass Components to create your own Components, you may register
- * them using {@link Ext.ComponentMgr#registerType} in order to be able to
- * take advantage of lazy instantiation and rendering.
- */
- /**
- * @cfg {String} ptype
- * The registered <tt>ptype</tt> to create. This config option is not used when passing
- * a config object into a constructor. This config option is used only when
- * lazy instantiation is being used, and a Plugin is being
- * specified not as a fully instantiated Component, but as a <i>Component config
- * object</i>. The <tt>ptype</tt> will be looked up at render time up to determine what
- * type of Plugin to create.<br><br>
- * If you create your own Plugins, you may register them using
- * {@link Ext.ComponentMgr#registerPlugin} in order to be able to
- * take advantage of lazy instantiation and rendering.
- */
- /**
- * @cfg {String} cls
- * An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be
- * useful for adding customized styles to the component or any of its children using standard CSS rules.
- */
- /**
- * @cfg {String} overCls
- * An optional extra CSS class that will be added to this component's Element when the mouse moves
- * over the Element, and removed when the mouse moves out. (defaults to ''). This can be
- * useful for adding customized 'active' or 'hover' styles to the component or any of its children using standard CSS rules.
- */
- /**
- * @cfg {String} style
- * A custom style specification to be applied to this component's Element. Should be a valid argument to
- * {@link Ext.Element#applyStyles}.
- * <pre><code>
- new Ext.Panel({
- title: 'Some Title',
- renderTo: Ext.getBody(),
- width: 400, height: 300,
- layout: 'form',
- items: [{
- xtype: 'textarea',
- style: {
- width: '95%',
- marginBottom: '10px'
- }
- },
- new Ext.Button({
- text: 'Send',
- minWidth: '100',
- style: {
- marginBottom: '10px'
- }
- })
- ]
- });
- * </code></pre>
- */
- /**
- * @cfg {String} ctCls
- * <p>An optional extra CSS class that will be added to this component's container. This can be useful for
- * adding customized styles to the container or any of its children using standard CSS rules. See
- * {@link Ext.layout.ContainerLayout}.{@link Ext.layout.ContainerLayout#extraCls extraCls} also.</p>
- * <p><b>Note</b>: <tt>ctCls</tt> defaults to <tt>''</tt> except for the following class
- * which assigns a value by default:
- * <div class="mdetail-params"><ul>
- * <li>{@link Ext.layout.Box Box Layout} : <tt>'x-box-layout-ct'</tt></li>
- * </ul></div>
- * To configure the above Class with an extra CSS class append to the default. For example,
- * for BoxLayout (Hbox and Vbox):<pre><code>
- * ctCls: 'x-box-layout-ct custom-class'
- * </code></pre>
- * </p>
- */
- /**
- * @cfg {Boolean} disabled
- * Render this component disabled (default is false).
- */
- disabled : false,
- /**
- * @cfg {Boolean} hidden
- * Render this component hidden (default is false). If <tt>true</tt>, the
- * {@link #hide} method will be called internally.
- */
- hidden : false,
- /**
- * @cfg {Object/Array} plugins
- * An object or array of objects that will provide custom functionality for this component. The only
- * requirement for a valid plugin is that it contain an init method that accepts a reference of type Ext.Component.
- * When a component is created, if any plugins are available, the component will call the init method on each
- * plugin, passing a reference to itself. Each plugin can then call methods or respond to events on the
- * component as needed to provide its functionality.
- */
- /**
- * @cfg {Mixed} applyTo
- * <p>Specify the id of the element, a DOM element or an existing Element corresponding to a DIV
- * that is already present in the document that specifies some structural markup for this
- * component.</p><div><ul>
- * <li><b>Description</b> : <ul>
- * <div class="sub-desc">When <tt>applyTo</tt> is used, constituent parts of the component can also be specified
- * by id or CSS class name within the main element, and the component being created may attempt
- * to create its subcomponents from that markup if applicable.</div>
- * </ul></li>
- * <li><b>Notes</b> : <ul>
- * <div class="sub-desc">When using this config, a call to render() is not required.</div>
- * <div class="sub-desc">If applyTo is specified, any value passed for {@link #renderTo} will be ignored and the target
- * element's parent node will automatically be used as the component's container.</div>
- * </ul></li>
- * </ul></div>
- */
- /**
- * @cfg {Mixed} renderTo
- * <p>Specify the id of the element, a DOM element or an existing Element that this component
- * will be rendered into.</p><div><ul>
- * <li><b>Notes</b> : <ul>
- * <div class="sub-desc">Do <u>not</u> use this option if the Component is to be a child item of
- * a {@link Ext.Container Container}. It is the responsibility of the
- * {@link Ext.Container Container}'s {@link Ext.Container#layout layout manager}
- * to render and manage its child items.</div>
- * <div class="sub-desc">When using this config, a call to render() is not required.</div>
- * </ul></li>
- * </ul></div>
- * <p>See <tt>{@link #render}</tt> also.</p>
- */
- /**
- * @cfg {Boolean} stateful
- * <p>A flag which causes the Component to attempt to restore the state of
- * internal properties from a saved state on startup. The component must have
- * either a <code>{@link #stateId}</code> or <code>{@link #id}</code> assigned
- * for state to be managed. Auto-generated ids are not guaranteed to be stable
- * across page loads and cannot be relied upon to save and restore the same
- * state for a component.<p>
- * <p>For state saving to work, the state manager's provider must have been
- * set to an implementation of {@link Ext.state.Provider} which overrides the
- * {@link Ext.state.Provider#set set} and {@link Ext.state.Provider#get get}
- * methods to save and recall name/value pairs. A built-in implementation,
- * {@link Ext.state.CookieProvider} is available.</p>
- * <p>To set the state provider for the current page:</p>
- * <pre><code>
- Ext.state.Manager.setProvider(new Ext.state.CookieProvider({
- expires: new Date(new Date().getTime()+(1000*60*60*24*7)), //7 days from now
- }));
- * </code></pre>
- * <p>A stateful Component attempts to save state when one of the events
- * listed in the <code>{@link #stateEvents}</code> configuration fires.</p>
- * <p>To save state, a stateful Component first serializes its state by
- * calling <b><code>getState</code></b>. By default, this function does
- * nothing. The developer must provide an implementation which returns an
- * object hash which represents the Component's restorable state.</p>
- * <p>The value yielded by getState is passed to {@link Ext.state.Manager#set}
- * which uses the configured {@link Ext.state.Provider} to save the object
- * keyed by the Component's <code>{@link stateId}</code>, or, if that is not
- * specified, its <code>{@link #id}</code>.</p>
- * <p>During construction, a stateful Component attempts to <i>restore</i>
- * its state by calling {@link Ext.state.Manager#get} passing the
- * <code>{@link #stateId}</code>, or, if that is not specified, the
- * <code>{@link #id}</code>.</p>
- * <p>The resulting object is passed to <b><code>applyState</code></b>.
- * The default implementation of <code>applyState</code> simply copies
- * properties into the object, but a developer may override this to support
- * more behaviour.</p>
- * <p>You can perform extra processing on state save and restore by attaching
- * handlers to the {@link #beforestaterestore}, {@link #staterestore},
- * {@link #beforestatesave} and {@link #statesave} events.</p>
- */
- /**
- * @cfg {String} stateId
- * The unique id for this component to use for state management purposes
- * (defaults to the component id if one was set, otherwise null if the
- * component is using a generated id).
- * <p>See <code>{@link #stateful}</code> for an explanation of saving and
- * restoring Component state.</p>
- */
- /**
- * @cfg {Array} stateEvents
- * <p>An array of events that, when fired, should trigger this component to
- * save its state (defaults to none). <code>stateEvents</code> may be any type
- * of event supported by this component, including browser or custom events
- * (e.g., <tt>['click', 'customerchange']</tt>).</p>
- * <p>See <code>{@link #stateful}</code> for an explanation of saving and
- * restoring Component state.</p>
- */
- /**
- * @cfg {Mixed} autoEl
- * <p>A tag name or {@link Ext.DomHelper DomHelper} spec used to create the {@link #getEl Element} which will
- * encapsulate this Component.</p>
- * <p>You do not normally need to specify this. For the base classes {@link Ext.Component}, {@link Ext.BoxComponent},
- * and {@link Ext.Container}, this defaults to <b><tt>'div'</tt></b>. The more complex Ext classes use a more complex
- * DOM structure created by their own onRender methods.</p>
- * <p>This is intended to allow the developer to create application-specific utility Components encapsulated by
- * different DOM elements. Example usage:</p><pre><code>
- {
- xtype: 'box',
- autoEl: {
- tag: 'img',
- src: 'http://www.example.com/example.jpg'
- }
- }, {
- xtype: 'box',
- autoEl: {
- tag: 'blockquote',
- html: 'autoEl is cool!'
- }
- }, {
- xtype: 'container',
- autoEl: 'ul',
- cls: 'ux-unordered-list',
- items: {
- xtype: 'box',
- autoEl: 'li',
- html: 'First list item'
- }
- }
- </code></pre>
- */
- autoEl : 'div',
- /**
- * @cfg {String} disabledClass
- * CSS class added to the component when it is disabled (defaults to 'x-item-disabled').
- */
- disabledClass : 'x-item-disabled',
- /**
- * @cfg {Boolean} allowDomMove
- * Whether the component can move the Dom node when rendering (defaults to true).
- */
- allowDomMove : true,
- /**
- * @cfg {Boolean} autoShow
- * True if the component should check for hidden classes (e.g. 'x-hidden' or 'x-hide-display') and remove
- * them on render (defaults to false).
- */
- autoShow : false,
- /**
- * @cfg {String} hideMode
- * <p>How this component should be hidden. Supported values are <tt>'visibility'</tt>
- * (css visibility), <tt>'offsets'</tt> (negative offset position) and <tt>'display'</tt>
- * (css display).</p>
- * <br><p><b>Note</b>: the default of <tt>'display'</tt> is generally preferred
- * since items are automatically laid out when they are first shown (no sizing
- * is done while hidden).</p>
- */
- hideMode : 'display',
- /**
- * @cfg {Boolean} hideParent
- * True to hide and show the component's container when hide/show is called on the component, false to hide
- * and show the component itself (defaults to false). For example, this can be used as a shortcut for a hide
- * button on a window by setting hide:true on the button when adding it to its parent container.
- */
- hideParent : false,
- /**
- * <p>The {@link Ext.Element} which encapsulates this Component. Read-only.</p>
- * <p>This will <i>usually</i> be a <DIV> element created by the class's onRender method, but
- * that may be overridden using the <code>{@link #autoEl}</code> config.</p>
- * <br><p><b>Note</b>: this element will not be available until this Component has been rendered.</p><br>
- * <p>To add listeners for <b>DOM events</b> to this Component (as opposed to listeners
- * for this Component's own Observable events), see the {@link Ext.util.Observable#listeners listeners}
- * config for a suggestion, or use a render listener directly:</p><pre><code>
- new Ext.Panel({
- title: 'The Clickable Panel',
- listeners: {
- render: function(p) {
- // Append the Panel to the click handler's argument list.
- p.getEl().on('click', handlePanelClick.createDelegate(null, [p], true));
- },
- single: true // Remove the listener after first invocation
- }
- });
- </code></pre>
- * <p>See also <tt>{@link #getEl getEl}</p>
- * @type Ext.Element
- * @property el
- */
- /**
- * The component's owner {@link Ext.Container} (defaults to undefined, and is set automatically when
- * the component is added to a container). Read-only.
- * <p><b>Note</b>: to access items within the container see <tt>{@link #itemId}</tt>.</p>
- * @type Ext.Container
- * @property ownerCt
- */
- /**
- * True if this component is hidden. Read-only.
- * @type Boolean
- * @property
- */
- /**
- * True if this component is disabled. Read-only.
- * @type Boolean
- * @property
- */
- /**
- * True if this component has been rendered. Read-only.
- * @type Boolean
- * @property
- */
- rendered : false,
- // private
- ctype : 'Ext.Component',
- // private
- actionMode : 'el',
- // private
- getActionEl : function(){
- return this[this.actionMode];
- },
- initPlugin : function(p){
- if(p.ptype && !Ext.isFunction(p.init)){
- p = Ext.ComponentMgr.createPlugin(p);
- }else if(Ext.isString(p)){
- p = Ext.ComponentMgr.createPlugin({
- ptype: p
- });
- }
- p.init(this);
- return p;
- },
- /* // protected
- * Function to be implemented by Component subclasses to be part of standard component initialization flow (it is empty by default).
- * <pre><code>
- // Traditional constructor:
- Ext.Foo = function(config){
- // call superclass constructor:
- Ext.Foo.superclass.constructor.call(this, config);
- this.addEvents({
- // add events
- });
- };
- Ext.extend(Ext.Foo, Ext.Bar, {
- // class body
- }
- // initComponent replaces the constructor:
- Ext.Foo = Ext.extend(Ext.Bar, {
- initComponent : function(){
- // call superclass initComponent
- Ext.Container.superclass.initComponent.call(this);
- this.addEvents({
- // add events
- });
- }
- }
- </code></pre>
- */
- initComponent : Ext.emptyFn,
- /**
- * <p>Render this Component into the passed HTML element.</p>
- * <p><b>If you are using a {@link Ext.Container Container} object to house this Component, then
- * do not use the render method.</b></p>
- * <p>A Container's child Components are rendered by that Container's
- * {@link Ext.Container#layout layout} manager when the Container is first rendered.</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}, {@link Ext.layout.TableLayout}.</p>
- * <p>If the Container is already rendered when a new child Component is added, you may need to call
- * the Container's {@link Ext.Container#doLayout doLayout} to refresh the view which causes any
- * unrendered child Components to be rendered. This is required so that you can add multiple
- * child components if needed while only refreshing the layout once.</p>
- * <p>When creating complex UIs, it is important to remember that sizing and positioning
- * of child items is the responsibility of the Container's {@link Ext.Container#layout layout} manager.
- * If you expect child items to be sized in response to user interactions, you must
- * configure the Container with a layout manager which creates and manages the type of layout you
- * have in mind.</p>
- * <p><b>Omitting the Container's {@link Ext.Container#layout layout} config means that a basic
- * layout manager is used which does nothing but render child components sequentially into the
- * Container. No sizing or positioning will be performed in this situation.</b></p>
- * @param {Element/HTMLElement/String} container (optional) The element this Component should be
- * rendered into. If it is being created from existing markup, this should be omitted.
- * @param {String/Number} position (optional) The element ID or DOM node index within the container <b>before</b>
- * which this component will be inserted (defaults to appending to the end of the container)
- */
- render : function(container, position){
- if(!this.rendered && this.fireEvent('beforerender', this) !== false){
- if(!container && this.el){
- this.el = Ext.get(this.el);
- container = this.el.dom.parentNode;
- this.allowDomMove = false;
- }
- this.container = Ext.get(container);
- if(this.ctCls){
- this.container.addClass(this.ctCls);
- }
- this.rendered = true;
- if(position !== undefined){
- if(Ext.isNumber(position)){
- position = this.container.dom.childNodes[position];
- }else{
- position = Ext.getDom(position);
- }
- }
- this.onRender(this.container, position || null);
- if(this.autoShow){
- this.el.removeClass(['x-hidden','x-hide-' + this.hideMode]);
- }
- if(this.cls){
- this.el.addClass(this.cls);
- delete this.cls;
- }
- if(this.style){
- this.el.applyStyles(this.style);
- delete this.style;
- }
- if(this.overCls){
- this.el.addClassOnOver(this.overCls);
- }
- this.fireEvent('render', this);
- this.afterRender(this.container);
- if(this.hidden){
- // call this so we don't fire initial hide events.
- this.doHide();
- }
- if(this.disabled){
- // pass silent so the event doesn't fire the first time.
- this.disable(true);
- }
- if(this.stateful !== false){
- this.initStateEvents();
- }
- this.initRef();
- this.fireEvent('afterrender', this);
- }
- return this;
- },
- initRef : function(){
- /**
- * @cfg {String} ref
- * <p>A path specification, relative to the Component's {@link #ownerCt} specifying into which
- * ancestor Container to place a named reference to this Component.</p>
- * <p>The ancestor axis can be traversed by using '/' characters in the path.
- * For example, to put a reference to a Toolbar Button into <i>the Panel which owns the Toolbar</i>:</p><pre><code>
- var myGrid = new Ext.grid.EditorGridPanel({
- title: 'My EditorGridPanel',
- store: myStore,
- colModel: myColModel,
- tbar: [{
- text: 'Save',
- handler: saveChanges,
- disabled: true,
- ref: '../saveButton'
- }],
- listeners: {
- afteredit: function() {
- // The button reference is in the GridPanel
- myGrid.saveButton.enable();
- }
- }
- });
- </code></pre>
- * <p>In the code above, if the ref had been <code>'saveButton'</code> the reference would
- * have been placed into the Toolbar. Each '/' in the ref moves up one level from the
- * Component's {@link #ownerCt}.</p>
- */
- if(this.ref){
- var levels = this.ref.split('/');
- var last = levels.length, i = 0;
- var t = this;
- while(i < last){
- if(t.ownerCt){
- t = t.ownerCt;
- }
- i++;
- }
- t[levels[--i]] = this;
- }
- },
- // private
- initState : function(config){
- if(Ext.state.Manager){
- var id = this.getStateId();
- if(id){
- var state = Ext.state.Manager.get(id);
- if(state){
- if(this.fireEvent('beforestaterestore', this, state) !== false){
- this.applyState(state);
- this.fireEvent('staterestore', this, state);
- }
- }
- }
- }
- },
- // private
- getStateId : function(){
- return this.stateId || ((this.id.indexOf('ext-comp-') == 0 || this.id.indexOf('ext-gen') == 0) ? null : this.id);
- },
- // private
- initStateEvents : function(){
- if(this.stateEvents){
- for(var i = 0, e; e = this.stateEvents[i]; i++){
- this.on(e, this.saveState, this, {delay:100});
- }
- }
- },
- // private
- applyState : function(state, config){
- if(state){
- Ext.apply(this, state);
- }
- },
- // private
- getState : function(){
- return null;
- },
- // private
- saveState : function(){
- if(Ext.state.Manager && this.stateful !== false){
- var id = this.getStateId();
- if(id){
- var state = this.getState();
- if(this.fireEvent('beforestatesave', this, state) !== false){
- Ext.state.Manager.set(id, state);
- this.fireEvent('statesave', this, state);
- }
- }
- }
- },
- /**
- * Apply this component to existing markup that is valid. With this function, no call to render() is required.
- * @param {String/HTMLElement} el
- */
- applyToMarkup : function(el){
- this.allowDomMove = false;
- this.el = Ext.get(el);
- this.render(this.el.dom.parentNode);
- },
- /**
- * Adds a CSS class to the component's underlying element.
- * @param {string} cls The CSS class name to add
- * @return {Ext.Component} this
- */
- addClass : function(cls){
- if(this.el){
- this.el.addClass(cls);
- }else{
- this.cls = this.cls ? this.cls + ' ' + cls : cls;
- }
- return this;
- },
- /**
- * Removes a CSS class from the component's underlying element.
- * @param {string} cls The CSS class name to remove
- * @return {Ext.Component} this
- */
- removeClass : function(cls){
- if(this.el){
- this.el.removeClass(cls);
- }else if(this.cls){
- this.cls = this.cls.split(' ').remove(cls).join(' ');
- }
- return this;
- },
- // private
- // default function is not really useful
- onRender : function(ct, position){
- if(!this.el && this.autoEl){
- if(Ext.isString(this.autoEl)){
- this.el = document.createElement(this.autoEl);
- }else{
- var div = document.createElement('div');
- Ext.DomHelper.overwrite(div, this.autoEl);
- this.el = div.firstChild;
- }
- if (!this.el.id) {
- this.el.id = this.getId();
- }
- }
- if(this.el){
- this.el = Ext.get(this.el);
- if(this.allowDomMove !== false){
- ct.dom.insertBefore(this.el.dom, position);
- }
- }
- },
- // private
- getAutoCreate : function(){
- var cfg = Ext.isObject(this.autoCreate) ?
- this.autoCreate : Ext.apply({}, this.defaultAutoCreate);
- if(this.id && !cfg.id){
- cfg.id = this.id;
- }
- return cfg;
- },
- // private
- afterRender : Ext.emptyFn,
- /**
- * Destroys this component by purging any event listeners, removing the component's element from the DOM,
- * removing the component from its {@link Ext.Container} (if applicable) and unregistering it from
- * {@link Ext.ComponentMgr}. Destruction is generally handled automatically by the framework and this method
- * should usually not need to be called directly.
- *
- */
- destroy : function(){
- if(this.fireEvent('beforedestroy', this) !== false){
- this.beforeDestroy();
- if(this.rendered){
- this.el.removeAllListeners();
- this.el.remove();
- if(this.actionMode == 'container' || this.removeMode == 'container'){
- this.container.remove();
- }
- }
- this.onDestroy();
- Ext.ComponentMgr.unregister(this);
- this.fireEvent('destroy', this);
- this.purgeListeners();
- }
- },
- // private
- beforeDestroy : Ext.emptyFn,
- // private
- onDestroy : Ext.emptyFn,
- /**
- * <p>Returns the {@link Ext.Element} which encapsulates this Component.</p>
- * <p>This will <i>usually</i> be a <DIV> element created by the class's onRender method, but
- * that may be overridden using the {@link #autoEl} config.</p>
- * <br><p><b>Note</b>: this element will not be available until this Component has been rendered.</p><br>
- * <p>To add listeners for <b>DOM events</b> to this Component (as opposed to listeners
- * for this Component's own Observable events), see the {@link #listeners} config for a suggestion,
- * or use a render listener directly:</p><pre><code>
- new Ext.Panel({
- title: 'The Clickable Panel',
- listeners: {
- render: function(p) {
- // Append the Panel to the click handler's argument list.
- p.getEl().on('click', handlePanelClick.createDelegate(null, [p], true));
- },
- single: true // Remove the listener after first invocation
- }
- });
- </code></pre>
- * @return {Ext.Element} The Element which encapsulates this Component.
- */
- getEl : function(){
- return this.el;
- },
- /**
- * Returns the <code>id</code> of this component or automatically generates and
- * returns an <code>id</code> if an <code>id</code> is not defined yet:<pre><code>
- * 'ext-comp-' + (++Ext.Component.AUTO_ID)
- * </code></pre>
- * @return {String} id
- */
- getId : function(){
- return this.id || (this.id = 'ext-comp-' + (++Ext.Component.AUTO_ID));
- },
- /**
- * Returns the <code>{@link #itemId}</code> of this component. If an
- * <code>{@link #itemId}</code> was not assigned through configuration the
- * <code>id</code> is returned using <code>{@link #getId}</code>.
- * @return {String}
- */
- getItemId : function(){
- return this.itemId || this.getId();
- },
- /**
- * Try to focus this component.
- * @param {Boolean} selectText (optional) If applicable, true to also select the text in this component
- * @param {Boolean/Number} delay (optional) Delay the focus this number of milliseconds (true for 10 milliseconds)
- * @return {Ext.Component} this
- */
- focus : function(selectText, delay){
- if(delay){
- this.focus.defer(Ext.isNumber(delay) ? delay : 10, this, [selectText, false]);
- return;
- }
- if(this.rendered){
- this.el.focus();
- if(selectText === true){
- this.el.dom.select();
- }
- }
- return this;
- },
- // private
- blur : function(){
- if(this.rendered){
- this.el.blur();
- }
- return this;
- },
- /**
- * Disable this component and fire the 'disable' event.
- * @return {Ext.Component} this
- */
- disable : function(/* private */ silent){
- if(this.rendered){
- this.onDisable();
- }
- this.disabled = true;
- if(silent !== true){
- this.fireEvent('disable', this);
- }
- return this;
- },
- // private
- onDisable : function(){
- this.getActionEl().addClass(this.disabledClass);
- this.el.dom.disabled = true;
- },
- /**
- * Enable this component and fire the 'enable' event.
- * @return {Ext.Component} this
- */
- enable : function(){
- if(this.rendered){
- this.onEnable();
- }
- this.disabled = false;
- this.fireEvent('enable', this);
- return this;
- },
- // private
- onEnable : function(){
- this.getActionEl().removeClass(this.disabledClass);
- this.el.dom.disabled = false;
- },
- /**
- * Convenience function for setting disabled/enabled by boolean.
- * @param {Boolean} disabled
- * @return {Ext.Component} this
- */
- setDisabled : function(disabled){
- return this[disabled ? 'disable' : 'enable']();
- },
- /**
- * Show this component. Listen to the '{@link #beforeshow}' event and return
- * <tt>false</tt> to cancel showing the component. Fires the '{@link #show}'
- * event after showing the component.
- * @return {Ext.Component} this
- */
- show : function(){
- if(this.fireEvent('beforeshow', this) !== false){
- this.hidden = false;
- if(this.autoRender){
- this.render(Ext.isBoolean(this.autoRender) ? Ext.getBody() : this.autoRender);
- }
- if(this.rendered){
- this.onShow();
- }
- this.fireEvent('show', this);
- }
- return this;
- },
- // private
- onShow : function(){
- this.getVisibiltyEl().removeClass('x-hide-' + this.hideMode);
- },
- /**
- * Hide this component. Listen to the '{@link #beforehide}' event and return
- * <tt>false</tt> to cancel hiding the component. Fires the '{@link #hide}'
- * event after hiding the component. Note this method is called internally if
- * the component is configured to be <code>{@link #hidden}</code>.
- * @return {Ext.Component} this
- */
- hide : function(){
- if(this.fireEvent('beforehide', this) !== false){
- this.doHide();
- this.fireEvent('hide', this);
- }
- return this;
- },
- // private
- doHide: function(){
- this.hidden = true;
- if(this.rendered){
- this.onHide();
- }
- },
- // private
- onHide : function(){
- this.getVisibiltyEl().addClass('x-hide-' + this.hideMode);
- },
- // private
- getVisibiltyEl : function(){
- return this.hideParent ? this.container : this.getActionEl();
- },
- /**
- * Convenience function to hide or show this component by boolean.
- * @param {Boolean} visible True to show, false to hide
- * @return {Ext.Component} this
- */
- setVisible : function(visible){
- return this[visible ? 'show' : 'hide']();
- },
- /**
- * Returns true if this component is visible.
- * @return {Boolean} True if this component is visible, false otherwise.
- */
- isVisible : function(){
- return this.rendered && this.getVisibiltyEl().isVisible();
- },
- /**
- * Clone the current component using the original config values passed into this instance by default.
- * @param {Object} overrides A new config containing any properties to override in the cloned version.
- * An id property can be passed on this object, otherwise one will be generated to avoid duplicates.
- * @return {Ext.Component} clone The cloned copy of this component
- */
- cloneConfig : function(overrides){
- overrides = overrides || {};
- var id = overrides.id || Ext.id();
- var cfg = Ext.applyIf(overrides, this.initialConfig);
- cfg.id = id; // prevent dup id
- return new this.constructor(cfg);
- },
- /**
- * Gets the xtype for this component as registered with {@link Ext.ComponentMgr}. For a list of all
- * available xtypes, see the {@link Ext.Component} header. Example usage:
- * <pre><code>
- var t = new Ext.form.TextField();
- alert(t.getXType()); // alerts 'textfield'
- </code></pre>
- * @return {String} The xtype
- */
- getXType : function(){
- return this.constructor.xtype;
- },
- /**
- * <p>Tests whether or not this Component is of a specific xtype. This can test whether this Component is descended
- * from the xtype (default) or whether it is directly of the xtype specified (shallow = true).</p>
- * <p><b>If using your own subclasses, be aware that a Component must register its own xtype
- * to participate in determination of inherited xtypes.</b></p>
- * <p>For a list of all available xtypes, see the {@link Ext.Component} header.</p>
- * <p>Example usage:</p>
- * <pre><code>
- var t = new Ext.form.TextField();
- var isText = t.isXType('textfield'); // true
- var isBoxSubclass = t.isXType('box'); // true, descended from BoxComponent
- var isBoxInstance = t.isXType('box', true); // false, not a direct BoxComponent instance
- </code></pre>
- * @param {String} xtype The xtype to check for this Component
- * @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 {Boolean} True if this component descends from the specified xtype, false otherwise.
- */
- isXType : function(xtype, shallow){
- //assume a string by default
- if (Ext.isFunction(xtype)){
- xtype = xtype.xtype; //handle being passed the class, e.g. Ext.Component
- }else if (Ext.isObject(xtype)){
- xtype = xtype.constructor.xtype; //handle being passed an instance
- }
- return !shallow ? ('/' + this.getXTypes() + '/').indexOf('/' + xtype + '/') != -1 : this.constructor.xtype == xtype;
- },
- /**
- * <p>Returns this Component's xtype hierarchy as a slash-delimited string. For a list of all
- * available xtypes, see the {@link Ext.Component} header.</p>
- * <p><b>If using your own subclasses, be aware that a Component must register its own xtype
- * to participate in determination of inherited xtypes.</b></p>
- * <p>Example usage:</p>
- * <pre><code>
- var t = new Ext.form.TextField();
- alert(t.getXTypes()); // alerts 'component/box/field/textfield'
- </code></pre>
- * @return {String} The xtype hierarchy string
- */
- getXTypes : function(){
- var tc = this.constructor;
- if(!tc.xtypes){
- var c = [], sc = this;
- while(sc && sc.constructor.xtype){
- c.unshift(sc.constructor.xtype);
- sc = sc.constructor.superclass;
- }
- tc.xtypeChain = c;
- tc.xtypes = c.join('/');
- }
- return tc.xtypes;
- },
- /**
- * Find a container above this component at any level by a custom function. If the passed function returns
- * true, the container will be returned.
- * @param {Function} fn The custom function to call with the arguments (container, this component).
- * @return {Ext.Container} The first Container for which the custom function returns true
- */
- findParentBy : function(fn) {
- for (var p = this.ownerCt; (p != null) && !fn(p, this); p = p.ownerCt);
- return p || null;
- },
- /**
- * Find a container above this component at any level by xtype or class
- * @param {String/Class} xtype The xtype string for a component, or the class of the component directly
- * @return {Ext.Container} The first Container which matches the given xtype or class
- */
- findParentByType : function(xtype) {
- return Ext.isFunction(xtype) ?
- this.findParentBy(function(p){
- return p.constructor === xtype;
- }) :
- this.findParentBy(function(p){
- return p.constructor.xtype === xtype;
- });
- },
- getDomPositionEl : function(){
- return this.getPositionEl ? this.getPositionEl() : this.getEl();
- },
- // private
- purgeListeners : function(){
- Ext.Component.superclass.purgeListeners.call(this);
- if(this.mons){
- this.on('beforedestroy', this.clearMons, this, {single: true});
- }
- },
- // private
- clearMons : function(){
- Ext.each(this.mons, function(m){
- m.item.un(m.ename, m.fn, m.scope);
- }, this);
- this.mons = [];
- },
- // internal function for auto removal of assigned event handlers on destruction
- mon : function(item, ename, fn, scope, opt){
- if(!this.mons){
- this.mons = [];
- this.on('beforedestroy', this.clearMons, this, {single: true});
- }
- if(Ext.isObject(ename)){
- var propRe = /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate)$/;
- var o = ename;
- for(var e in o){
- if(propRe.test(e)){
- continue;
- }
- if(Ext.isFunction(o[e])){
- // shared options
- this.mons.push({
- item: item, ename: e, fn: o[e], scope: o.scope
- });
- item.on(e, o[e], o.scope, o);
- }else{
- // individual options
- this.mons.push({
- item: item, ename: e, fn: o[e], scope: o.scope
- });
- item.on(e, o[e]);
- }
- }
- return;
- }
- this.mons.push({
- item: item, ename: ename, fn: fn, scope: scope
- });
- item.on(ename, fn, scope, opt);
- },
- // protected, opposite of mon
- mun : function(item, ename, fn, scope){
- var found, mon;
- for(var i = 0, len = this.mons.length; i < len; ++i){
- mon = this.mons[i];
- if(item === mon.item && ename == mon.ename && fn === mon.fn && scope === mon.scope){
- this.mons.splice(i, 1);
- item.un(ename, fn, scope);
- found = true;
- break;
- }
- }
- return found;
- },
- /**
- * Returns the next component in the owning container
- * @return Ext.Component
- */
- nextSibling : function(){
- if(this.ownerCt){
- var index = this.ownerCt.items.indexOf(this);
- if(index != -1 && index+1 < this.ownerCt.items.getCount()){
- return this.ownerCt.items.itemAt(index+1);
- }
- }
- return null;
- },
- /**
- * Returns the previous component in the owning container
- * @return Ext.Component
- */
- previousSibling : function(){
- if(this.ownerCt){
- var index = this.ownerCt.items.indexOf(this);
- if(index > 0){
- return this.ownerCt.items.itemAt(index-1);
- }
- }
- return null;
- },
- /**
- * Provides the link for Observable's fireEvent method to bubble up the ownership hierarchy.
- * @return {Ext.Container} the Container which owns this Component.
- */
- getBubbleTarget : function(){
- return this.ownerCt;
- }
- });
- Ext.reg('component', Ext.Component);