For up to date documentation and features, visit http://docs.sencha.com/ext-js/4-0

Sencha Documentation

Hierarchy

Mixins

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 Container class. Components may be added to a Container through the items config option at the time the Container is created, or they may be added dynamically via the add method.

The Component base class has built-in support for basic hide/show and enable/disable and size control behavior.

All Components are registered with the Ext.ComponentManager on construction so that they can be referenced at any time via Ext.getCmp, passing the id.

All user-developed visual widgets that are required to participate in automated lifecycle and size management should subclass Component.

See the Creating new UI controls tutorial for details on how and to either extend or augment ExtJs base classes to create custom Components.

Every component has a specific xtype, which is its Ext-specific type name, along with methods for checking the xtype like getXType and isXType. This is the list of all valid xtypes:

xtype            Class
-------------    ------------------
button           Ext.button.Button
buttongroup      Ext.container.ButtonGroup
colorpalette     Ext.picker.Color
component        Ext.Component
container        Ext.container.Container
cycle            Ext.button.Cycle
dataview         Ext.view.View
datepicker       Ext.picker.Date
editor           Ext.Editor
editorgrid       Ext.grid.plugin.Editing
grid             Ext.grid.Panel
multislider      Ext.slider.Multi
panel            Ext.panel.Panel
progress         Ext.ProgressBar
slider           Ext.slider.Single
spacer           Ext.toolbar.Spacer
splitbutton      Ext.button.Split
tabpanel         Ext.tab.Panel
treepanel        Ext.tree.Panel
viewport         Ext.container.Viewport
window           Ext.window.Window

Toolbar components
---------------------------------------
paging           Ext.toolbar.Paging
toolbar          Ext.toolbar.Toolbar
tbfill           Ext.toolbar.Fill
tbitem           Ext.toolbar.Item
tbseparator      Ext.toolbar.Separator
tbspacer         Ext.toolbar.Spacer
tbtext           Ext.toolbar.TextItem

Menu components
---------------------------------------
menu             Ext.menu.Menu
menucheckitem    Ext.menu.CheckItem
menuitem         Ext.menu.Item
menuseparator    Ext.menu.Separator
menutextitem     Ext.menu.Item

Form components
---------------------------------------
form             Ext.form.Panel
checkbox         Ext.form.field.Checkbox
combo            Ext.form.field.ComboBox
datefield        Ext.form.field.Date
displayfield     Ext.form.field.Display
field            Ext.form.field.Base
fieldset         Ext.form.FieldSet
hidden           Ext.form.field.Hidden
htmleditor       Ext.form.field.HtmlEditor
label            Ext.form.Label
numberfield      Ext.form.field.Number
radio            Ext.form.field.Radio
radiogroup       Ext.form.RadioGroup
textarea         Ext.form.field.TextArea
textfield        Ext.form.field.Text
timefield        Ext.form.field.Time
trigger          Ext.form.field.Trigger

Chart components
---------------------------------------
chart            Ext.chart.Chart
barchart         Ext.chart.series.Bar
columnchart      Ext.chart.series.Column
linechart        Ext.chart.series.Line
piechart         Ext.chart.series.Pie

It should not usually be necessary to instantiate a Component because there are provided subclasses which implement specialized Component use cases which over most application needs. However it is possible to instantiate a base Component, and it will be renderable, or will particpate in layouts as the child item of a Container: Ext.Component component

    Ext.create('Ext.Component', {
        html: 'Hello world!',
        width: 300,
        height: 200,
        padding: 20,
        style: {
            color: '#FFFFFF',
            backgroundColor:'#000000'
        },
        renderTo: Ext.getBody()
    });

The Component above creates its encapsulating div upon render, and use the configured HTML as content. More complex internal structure may be created using the renderTpl configuration, although to display database-derived mass data, it is recommended that an ExtJS data-backed Component such as a {Ext.view.DataView DataView}, or {Ext.grid.Panel GridPanel}, or TreePanel be used.

Defined By

Config Options

CSS Class configs

 
The base CSS class to apply to this components's element. This will also be prepended to elements within this compone...

The base CSS class to apply to this components's element. This will also be prepended to elements within this component like Panel's body will get a class x-panel-body. This means that if you create a subclass of Panel, and you want it to get all the Panels styling for the element and the body, you leave the baseCls x-panel and use componentCls to add specific styling for this component.

 
An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be useful for ...

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.

 

CSS Class to be added to a components root level element to give distinction to it via styling.

CSS Class to be added to a components root level element to give distinction to it via styling.

 

CSS class to add when the Component is disabled. Defaults to 'x-item-disabled'.

CSS class to add when the Component is disabled. Defaults to 'x-item-disabled'.

 
An optional extra CSS class that will be added to this component's Element when the mouse moves over the Element, and...

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.

 

The class that is added to the content target when you set styleHtmlContent to true. Defaults to 'x-html'

The class that is added to the content target when you set styleHtmlContent to true. Defaults to 'x-html'

Other Configs

 
A tag name or DomHelper spec used to create the Element which will encapsulate this Component. You do not normally ...

A tag name or DomHelper spec used to create the Element which will encapsulate this Component.

You do not normally need to specify this. For the base classes Ext.Component and Ext.container.Container, this defaults to 'div'. The more complex Sencha classes use a more complex DOM structure specified by their own renderTpls.

This is intended to allow the developer to create application-specific utility Components encapsulated by different DOM elements. Example usage:

{
    xtype: 'component',
    autoEl: {
        tag: 'img',
        src: 'http://www.example.com/example.jpg'
    }
}, {
    xtype: 'component',
    autoEl: {
        tag: 'blockquote',
        html: 'autoEl is cool!'
    }
}, {
    xtype: 'container',
    autoEl: 'ul',
    cls: 'ux-unordered-list',
    items: {
        xtype: 'component',
        autoEl: 'li',
        html: 'First list item'
    }
}
 
This config is intended mainly for floating Components which may or may not be shown. Instead of using renderTo in th...

This config is intended mainly for floating Components which may or may not be shown. Instead of using renderTo in the configuration, and rendering upon construction, this allows a Component to render itself upon first show.

Specify as true to have this Component render to the document body upon first show.

Specify as an element, or the ID of an element to have this Component render to a specific element upon first show.

This defaults to true for the Window class.

 
true to use overflow:'auto' on the components layout element and show scroll bars automatically when necessary, false...

true to use overflow:'auto' on the components layout element and show scroll bars automatically when necessary, false to clip any overflowing content (defaults to false).

 
True to automatically show the component upon creation. This config option may only be used for floating components o...

True to automatically show the component upon creation. This config option may only be used for floating components or components that use autoRender. Defaults to false.

 
The base CSS class to apply to this components's element. This will also be prepended to elements within this compone...

The base CSS class to apply to this components's element. This will also be prepended to elements within this component like Panel's body will get a class x-panel-body. This means that if you create a subclass of Panel, and you want it to get all the Panels styling for the element and the body, you leave the baseCls x-panel and use componentCls to add specific styling for this component.

 
Specifies the border for this component. The border can be a single numeric value to apply to all sides or it can be ...

Specifies the border for this component. The border can be a single numeric value to apply to all sides or it can be a CSS style specification for each style, for example: '10 5 3 10'.

 
An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be useful for ...

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.

 

CSS Class to be added to a components root level element to give distinction to it via styling.

CSS Class to be added to a components root level element to give distinction to it via styling.

 
The sizing and positioning of a Component's internal Elements is the responsibility of the Component's layout manager...

The sizing and positioning of a Component's internal Elements is the responsibility of the Component's layout manager which sizes a Component's internal structure in response to the Component being sized.

Generally, developers will not use this configuration as all provided Components which need their internal elements sizing (Such as input fields) come with their own componentLayout managers.

The default layout manager will be used on instances of the base Ext.Component class which simply sizes the Component's encapsulating element to the height and width specified in the setSize method.

 
Optional. Specify an existing HTML element, or the id of an existing HTML element to use as the content for this comp...

Optional. Specify an existing HTML element, or the id of an existing HTML element to use as the content for this component.

  • Description :
    This config option is used to take an existing HTML element and place it in the layout element of a new component (it simply moves the specified DOM element after the Component is rendered to use as the content.
  • Notes :
    The specified HTML element is appended to the layout element of the component after any configured HTML has been inserted, and so the document will not contain this element at the time the render event is fired.
    The specified HTML element used will not participate in any layout scheme that the Component may use. It is just HTML. Layouts operate on child items.
    Add either the x-hidden or the x-hide-display CSS class to prevent a brief flicker of the content before it is rendered to the panel.
 

The initial set of data to apply to the tpl to update the content area of the Component.

The initial set of data to apply to the tpl to update the content area of the Component.

 

Defaults to false.

Defaults to false.

 

CSS class to add when the Component is disabled. Defaults to 'x-item-disabled'.

CSS class to add when the Component is disabled. Defaults to 'x-item-disabled'.

 
Specify as true to make a floating Component draggable using the Component's encapsulating element as the drag handle...

Specify as true to make a floating Component draggable using the Component's encapsulating element as the drag handle.

This may also be specified as a config object for the ComponentDragger which is instantiated to perform dragging.

For example to create a Component which may only be dragged around using a certain internal element as the drag handle, use the delegate option:

new Ext.Component({
    constrain: true,
    floating:true,
    style: {
        backgroundColor: '#fff',
        border: '1px solid black'
    },
    html: '<h1 style="cursor:move">The title</h1><p>The content</p>',
    draggable: {
        delegate: 'h1'
    }
}).show();

 
Specify as true to float the Component outside of the document flow using CSS absolute positioning. Components such...

Specify as true to float the Component outside of the document flow using CSS absolute positioning.

Components such as Windows and Menus are floating by default.

Floating Components that are programatically rendered will register themselves with the global ZIndexManager

Floating Components as child items of a Container

A floating Component may be used as a child item of a Container. This just allows the floating Component to seek a ZIndexManager by examining the ownerCt chain.

When configured as floating, Components acquire, at render time, a ZIndexManager which manages a stack of related floating Components. The ZIndexManager brings a single floating Component to the top of its stack when the Component's toFront method is called.

The ZIndexManager is found by traversing up the ownerCt chain to find an ancestor which itself is floating. This is so that descendant floating Components of floating Containers (Such as a ComboBox dropdown within a Window) can have its zIndex managed relative to any siblings, but always above that floating ancestor Container.

If no floating ancestor is found, a floating Component registers itself with the default ZIndexManager.

Floating components do not participate in the Container's layout. Because of this, they are not rendered until you explicitly show them.

After rendering, the ownerCt reference is deleted, and the floatParent property is set to the found floating ancestor Container. If no floating ancestor Container was found the floatParent property will not be set.

 
Specifies whether the floated component should be automatically focused when it is brought to the front. Defaults to ...

Specifies whether the floated component should be automatically focused when it is brought to the front. Defaults to true.

 
Specify as true to have the Component inject framing elements within the Component at render time to provide a graphi...

Specify as true to have the Component inject framing elements within the Component at render time to provide a graphical rounded frame around the Component content.

This is only necessary when running on outdated, or non standard-compliant browsers such as Microsoft's Internet Explorer prior to version 9 which do not support rounded corners natively.

The extra space taken up by this framing is available from the read only property frameSize.

 

The height of this component in pixels.

The height of this component in pixels.

 

Defaults to false.

Defaults to false.

 
A String which specifies how this Component's encapsulating DOM element will be hidden. Values may be 'display' : The...

A String which specifies how this Component's encapsulating DOM element will be hidden. Values may be

  • 'display' : The Component will be hidden using the display: none style.
  • 'visibility' : The Component will be hidden using the visibility: hidden style.
  • 'offsets' : The Component will be hidden by absolutely positioning it out of the visible area of the document. This is useful when a hidden Component must maintain measurable dimensions. Hiding using display results in a Component having zero dimensions.
Defaults to 'display'.

 
An HTML fragment, or a DomHelper specification to use as the layout element content (defaults to ''). The HTML conten...

An HTML fragment, or a DomHelper specification to use as the layout element content (defaults to ''). The HTML content is added after the component is rendered, so the document will not contain this HTML at the time the render event is fired. This content is inserted into the body before any configured contentEl is appended.

 
The unique id of this component instance (defaults to an auto-assigned id). It should not be necessary to use this ...

The unique id of this component instance (defaults to an auto-assigned id).

It should not be necessary to use this configuration except for singleton objects in your application. Components created with an id may be accessed globally using Ext.getCmp.

Instead of using assigned ids, use the itemId config, and ComponentQuery which provides selector-based searching for Sencha Components analogous to DOM querying. The Container class contains shortcut methods to query its descendant Components by selector.

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.

Note: to avoid complications imposed by a unique id also see itemId.

Note: to access the container of a Component see ownerCt.

 
An itemId can be used as an alternative way to get a reference to a component when no object reference is available. ...

An itemId can be used as an alternative way to get a reference to a component when no object reference is available. Instead of using an id with Ext.getCmp, use itemId with Ext.container.Container.getComponent which will retrieve itemId's or id's. Since itemId's are an index to the container's internal MixedCollection, the itemId is scoped locally to the container -- avoiding potential conflicts with Ext.ComponentManager which requires a unique id.

var c = new Ext.panel.Panel({ //
    height: 300,
    renderTo: document.body,
    layout: 'auto',
    items: [
        {
            itemId: 'p1',
            title: 'Panel 1',
            height: 150
        },
        {
            itemId: 'p2',
            title: 'Panel 2',
            height: 150
        }
    ]
})
p1 = c.getComponent('p1'); // not the same as Ext.getCmp()
p2 = p1.ownerCt.getComponent('p2'); // reference via a sibling

Also see id, query, down and child.

Note: to access the container of an item see ownerCt.

 
(optional) A config object containing one or more event handlers to be added to this object during initialization. T...

(optional)

A config object containing one or more event handlers to be added to this object during initialization. This should be a valid listeners config object as specified in the addListener example for attaching multiple handlers at once.


DOM events from ExtJs Components


While some ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this

is usually only done when extra value can be added. For example the DataView's click event passing the node clicked on. To access DOM events directly from a child element of a Component, we need to specify the element option to identify the Component property to add a DOM listener to:

new Ext.panel.Panel({
    width: 400,
    height: 200,
    dockedItems: [{
        xtype: 'toolbar'
    }],
    listeners: {
        click: {
            element: 'el', //bind to the underlying el property on the panel
            fn: function(){ console.log('click el'); }
        },
        dblclick: {
            element: 'body', //bind to the underlying body property on the panel
            fn: function(){ console.log('dblclick body'); }
        }
    }
});

 
loader : Ext.ComponentLoader/Object

A configuration object or an instance of a Ext.ComponentLoader to load remote content for this Component.

A configuration object or an instance of a Ext.ComponentLoader to load remote content for this Component.

 
Only valid when a sibling element of a Splitter within a VBox or HBox layout. Specifies that if an immediate siblin...

Only valid when a sibling element of a Splitter within a VBox or HBox layout.

Specifies that if an immediate sibling Splitter is moved, the Component on the other side is resized, and this Component maintains its configured flex value.

 
Specifies the margin for this component. The margin can be a single numeric value to apply to all sides or it can be ...

Specifies the margin for this component. The margin can be a single numeric value to apply to all sides or it can be a CSS style specification for each style, for example: '10 5 3 10'.

 
The maximum value in pixels which this Component will set its height to. Warning: This will override any size manag...

The maximum value in pixels which this Component will set its height to.

Warning: This will override any size management applied by layout managers.

 
The maximum value in pixels which this Component will set its width to. Warning: This will override any size manage...

The maximum value in pixels which this Component will set its width to.

Warning: This will override any size management applied by layout managers.

 
The minimum value in pixels which this Component will set its height to. Warning: This will override any size manag...

The minimum value in pixels which this Component will set its height to.

Warning: This will override any size management applied by layout managers.

 
The minimum value in pixels which this Component will set its width to. Warning: This will override any size manage...

The minimum value in pixels which this Component will set its width to.

Warning: This will override any size management applied by layout managers.

 
An optional extra CSS class that will be added to this component's Element when the mouse moves over the Element, and...

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.

 
Specifies the padding for this component. The padding can be a single numeric value to apply to all sides or it can b...

Specifies the padding for this component. The padding can be a single numeric value to apply to all sides or it can be a CSS style specification for each style, for example: '10 5 3 10'.

 
An object or array of objects that will provide custom functionality for this component. The only requirement for a ...

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.

 
An object containing properties specifying DomQuery selectors which identify child elements created by the render pro...

An object containing properties specifying DomQuery selectors which identify child elements created by the render process.

After the Component's internal structure is rendered according to the renderTpl, this object is iterated through, and the found Elements are added as properties to the Component using the renderSelector property name.

For example, a Component which rendered an image, and description into its element might use the following properties coded into its prototype:

renderTpl: '&lt;img src="{imageUrl}" class="x-image-component-img">&lt;div class="x-image-component-desc">{description}&gt;/div&lt;',

renderSelectors: {
    image: 'img.x-image-component-img',
    descEl: 'div.x-image-component-desc'
}

After rendering, the Component would have a property image referencing its child img Element, and a property descEl referencing the div Element which contains the description.

 
Specify the id of the element, a DOM element or an existing Element that this component will be rendered into. Not...

Specify the id of the element, a DOM element or an existing Element that this component will be rendered into.

  • Notes :
      Do not use this option if the Component is to be a child item of a Container. It is the responsibility of the Container's layout manager to render and manage its child items.
      When using this config, a call to render() is not required.

See render also.

 
An XTemplate used to create the internal structure inside this Component's encapsulating Element. You do not normal...

An XTemplate used to create the internal structure inside this Component's encapsulating Element.

You do not normally need to specify this. For the base classes Ext.Component and Ext.container.Container, this defaults to null which means that they will be initially rendered with no internal structure; they render their Element empty. The more specialized ExtJS and Touch classes which use a more complex DOM structure, provide their own template definitions.

This is intended to allow the developer to create application-specific utility Components with customized internal structure.

Upon rendering, any created child elements may be automatically imported into object properties using the renderSelectors option.

 
Specify as true to apply a Resizer to this Component after rendering. May also be specified as a config object to b...

Specify as true to apply a Resizer to this Component after rendering.

May also be specified as a config object to be passed to the constructor of Resizer to override any defaults. By default the Component passes its minimum and maximum size, and uses Ext.resizer.Resizer.dynamic: false

 

A valid Ext.resizer.Resizer handles config string (defaults to 'all'). Only applies when resizable = true.

A valid Ext.resizer.Resizer handles config string (defaults to 'all'). Only applies when resizable = true.

 

A buffer to be applied if many state events are fired within a short period. Defaults to 100.

A buffer to be applied if many state events are fired within a short period. Defaults to 100.

 
Specifies whether the floating component should be given a shadow. Set to true to automatically create an Ext.Shadow,...

Specifies whether the floating component should be given a shadow. Set to true to automatically create an Ext.Shadow, or a string indicating the shadow's display Ext.Shadow.mode. Set to false to disable the shadow. (Defaults to 'sides'.)

 
An array of events that, when fired, should trigger this object to save its state (defaults to none). stateEvents may...

An array of events that, when fired, should trigger this object to save its state (defaults to none). stateEvents may be any type of event supported by this object, including browser or custom events (e.g., ['click', 'customerchange']).

See stateful for an explanation of saving and restoring object state.

 
The unique id for this object to use for state management purposes. See stateful for an explanation of saving and re...

The unique id for this object to use for state management purposes.

See stateful for an explanation of saving and restoring state.

 
A flag which causes the object to attempt to restore the state of internal properties from a saved state on startup. ...

A flag which causes the object to attempt to restore the state of internal properties from a saved state on startup. The object must have a stateId 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 object.

For state saving to work, the state manager's provider must have been set to an implementation of Ext.state.Provider which overrides the set and get methods to save and recall name/value pairs. A built-in implementation, Ext.state.CookieProvider is available.

To set the state provider for the current page:

Ext.state.Manager.setProvider(new Ext.state.CookieProvider({
    expires: new Date(new Date().getTime()+(1000*60*60*24*7)), //7 days from now
}));

A stateful object attempts to save state when one of the events listed in the stateEvents configuration fires.

To save state, a stateful object first serializes its state by calling getState. By default, this function does nothing. The developer must provide an implementation which returns an object hash which represents the restorable state of the object.

The value yielded by getState is passed to Ext.state.Manager.set which uses the configured Ext.state.Provider to save the object keyed by the stateId

.

During construction, a stateful object attempts to restore its state by calling Ext.state.Manager.get passing the stateId

The resulting object is passed to applyState. The default implementation of applyState simply copies properties into the object, but a developer may override this to support more behaviour.

You can perform extra processing on state save and restore by attaching handlers to the beforestaterestore, staterestore, beforestatesave and statesave events.

 
A custom style specification to be applied to this component's Element. Should be a valid argument to Ext.core.Eleme...

A custom style specification to be applied to this component's Element. Should be a valid argument to Ext.core.Element.applyStyles.

        new Ext.panel.Panel({
            title: 'Some Title',
            renderTo: Ext.getBody(),
            width: 400, height: 300,
            layout: 'form',
            items: [{
                xtype: 'textarea',
                style: {
                    width: '95%',
                    marginBottom: '10px'
                }
            },
            new Ext.button.Button({
                text: 'Send',
                minWidth: '100',
                style: {
                    marginBottom: '10px'
                }
            })
            ]
        });
     
 

The class that is added to the content target when you set styleHtmlContent to true. Defaults to 'x-html'

The class that is added to the content target when you set styleHtmlContent to true. Defaults to 'x-html'

 

True to automatically style the html inside the content target of this component (body for panels). Defaults to false.

True to automatically style the html inside the content target of this component (body for panels). Defaults to false.

 
True to automatically call toFront when the show method is called on an already visible, floating component (default ...

True to automatically call toFront when the show method is called on an already visible, floating component (default is true).

 
An Ext.Template, Ext.XTemplate or an array of strings to form an Ext.XTemplate. Used in conjunction with the data and...

An Ext.Template, Ext.XTemplate or an array of strings to form an Ext.XTemplate. Used in conjunction with the data and tplWriteMode configurations.

 
The Ext.(X)Template method to use when updating the content area of the Component. Defaults to 'overwrite' (see Ext.X...

The Ext.(X)Template method to use when updating the content area of the Component. Defaults to 'overwrite' (see Ext.XTemplate.overwrite).

 

A set style for a component. Can be a string or an Array of multiple strings (UIs)

A set style for a component. Can be a string or an Array of multiple strings (UIs)

 

The width of this component in pixels.

The width of this component in pixels.

Defined By

Properties

 

Read-only property indicating whether or not the component can be dragged

Read-only property indicating whether or not the component can be dragged

 
Optional. Only present for floating Components which were inserted as descendant items of floating Containers. Floa...

Optional. Only present for floating Components which were inserted as descendant items of floating Containers.

Floating Components that are programatically rendered will not have a floatParent property.

For floating Components which are child items of a Container, the floatParent will be the floating ancestor Container which is responsible for the base z-index value of all its floating descendants. It provides a ZIndexManager which provides z-indexing services for all its descendant floating Components.

For example, the dropdown BoundList of a ComboBox which is in a Window will have the Window as its floatParent

See floating and zIndexManager

 
Read-only property indicating the width of any framing elements which were added within the encapsulating element to ...

Read-only property indicating the width of any framing elements which were added within the encapsulating element to provide graphical, rounded borders. See the frame config.

This is an object containing the frame width in pixels for all four sides of the Component containing the following properties:

  • top The width of the top framing element in pixels.
  • right The width of the right framing element in pixels.
  • bottom The width of the bottom framing element in pixels.
  • left The width of the left framing element in pixels.
 
@deprecated 4.0 Replaced by getActiveAnimation Returns thq current animation if this object has any effects actively ...

@deprecated 4.0 Replaced by getActiveAnimation Returns thq current animation if this object has any effects actively running or queued, else returns false.

 
This is an internal flag that you use when creating custom components. By default this is set to true which means tha...

This is an internal flag that you use when creating custom components. By default this is set to true which means that every component gets a mask when its disabled. Components like FieldContainer, FieldSet, Field, Button, Tab override this property to false since they want to implement custom disable logic.

 
This Component's owner Container (defaults to undefined, and is set automatically when this Component is added to a C...

This Component's owner Container (defaults to undefined, and is set automatically when this Component is added to a Container). Read-only.

Note: to access items within the Container see itemId.

 

Read-only property indicating whether or not the component has been rendered.

Read-only property indicating whether or not the component has been rendered.

 
Stops any running effects and clears this object's internal effects queue if it contains any additional effects that ...

Stops any running effects and clears this object's internal effects queue if it contains any additional effects that haven't started yet.

 
Optional. Only present for floating Components after they have been rendered. A reference to the ZIndexManager whic...

Optional. Only present for floating Components after they have been rendered.

A reference to the ZIndexManager which is managing this Component's z-index.

The ZIndexManager maintains a stack of floating Component z-indices, and also provides a single modal mask which is insert just beneath the topmost visible modal floating Component.

Floating Components may be brought to the front or sent to the back of the z-index stack.

This defaults to the global ZIndexManager for floating Components that are programatically rendered.

For floating Components which are added to a Container, the ZIndexManager is acquired from the first ancestor Container found which is floating, or if not found the global ZIndexManager is used.

See floating and floatParent

Defined By

Methods

 
Component( Ext.core.Element/String/Object config) : void

 

Parameters

  • config : Ext.core.Element/String/Object

    The configuration options may be specified as either:

    • an element :

      it is set as the internal element and its id used as the component id

    • a string :

      it is assumed to be the id of an existing element and is used as the component id

    • anything else :

      it is assumed to be a standard config object and is applied to the component

Returns

  • void   
 
addClass( String cls) : Ext.Component

@deprecated 4.0 Replaced by {link:#addCls} Adds a CSS class to the top level element representing this component.

@deprecated 4.0 Replaced by {link:#addCls} Adds a CSS class to the top level element representing this component.

Parameters

  • cls : String

    The CSS class name to add

Returns

  • Ext.Component   

    Returns the Component to allow method chaining.

 
addCls( String cls) : Ext.Component

Adds a CSS class to the top level element representing this component.

Adds a CSS class to the top level element representing this component.

Parameters

  • cls : String

    The CSS class name to add

Returns

  • Ext.Component   

    Returns the Component to allow method chaining.

 

Adds a cls to the uiCls array, which will also call addUIClsToElement and adds to all elements of this component.

Adds a cls to the uiCls array, which will also call addUIClsToElement and adds to all elements of this component.

Parameters

  • cls : String/Array

    A string or an array of strings to add to the uiCls

Returns

  • void   
 
addEvents( Object/String o, String ) : void

Adds the specified events to the list of events which this Observable may fire.

Adds the specified events to the list of events which this Observable may fire.

Parameters

  • o : Object/String

    Either an object with event names as properties with a value of true or the first event name string if multiple event names are being passed as separate parameters.

  • : String

    [additional] Optional additional event names if multiple event names are being passed as separate parameters. Usage:

    this.addEvents('storeloaded', 'storecleared');
    

Returns

  • void   
 
addListener( String eventName, Function handler, [Object scope], [Object options]) : void

Appends an event handler to this object.

Appends an event handler to this object.

Parameters

  • eventName : String

    The name of the event to listen for. May also be an object who's property names are event names. See

  • handler : Function

    The method the event invokes.

  • scope : Object

    (optional) The scope (this reference) in which the handler function is executed. If omitted, defaults to the object which fired the event.

  • options : Object

    (optional) An object containing handler configuration. properties. This may contain any of the following properties:

    • scope : Object
      The scope (this reference) in which the handler function is executed. If omitted, defaults to the object which fired the event.
    • delay : Number
      The number of milliseconds to delay the invocation of the handler after the event fires.
    • single : Boolean
      True to add a handler to handle just the next firing of the event, and then remove itself.
    • buffer : Number
      Causes the handler to be scheduled to run in an Ext.util.DelayedTask delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place.
    • target : Observable
      Only call the handler if the event was fired on the target Observable, not if the event was bubbled up from a child Observable.
    • element : String
      This option is only valid for listeners bound to Components. The name of a Component property which references an element to add a listener to.

      This option is useful during Component construction to add DOM event listeners to elements of Components which will exist only after the Component is rendered. For example, to add a click listener to a Panel's body:

      new Ext.panel.Panel({
          title: 'The title',
          listeners: {
              click: this.handlePanelClick,
              element: 'body'
          }
      });
      

      When added in this way, the options available are the options applicable to Ext.core.Element.addListener


    Combining Options
    Using the options argument, it is possible to combine different types of listeners:

    A delayed, one-time listener.

    myPanel.on('hide', this.handleClick, this, {
    single: true,
    delay: 100
    });

    Attaching multiple handlers in 1 call
    The method also allows for a single argument to be passed which is a config object containing properties which specify multiple events. For example:

    myGridPanel.on({
        cellClick: this.onCellClick,
        mouseover: this.onMouseOver,
        mouseout: this.onMouseOut,
        scope: this // Important. Ensure "this" is correct during handler execution
    });
    
    .

Returns

  • void   
 
addManagedListener( Observable/Element item, Object/String ename, Function fn, Object scope, Object opt) : void

Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.

Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.

Parameters

  • item : Observable/Element

    The item to which to add a listener/listeners.

  • ename : Object/String

    The event name, or an object containing event name properties.

  • fn : Function

    Optional. If the ename parameter was an event name, this is the handler function.

  • scope : Object

    Optional. If the ename parameter was an event name, this is the scope (this reference) in which the handler function is executed.

  • opt : Object

    Optional. If the ename parameter was an event name, this is the addListener options.

Returns

  • void   
 
addStateEvents( String/Array events) : void

Add events that will trigger the state to be saved.

Add events that will trigger the state to be saved.

Parameters

  • events : String/Array

    The event name or an array of event names.

Returns

  • void   
 
afterComponentLayout( Number adjWidth, Number adjHeight, Boolean isSetSize, Ext.Component layoutOwner) : void

 

Parameters

  • adjWidth : Number

    The box-adjusted width that was set

  • adjHeight : Number

    The box-adjusted height that was set

  • isSetSize : Boolean

    Whether or not the height/width are stored on the component permanently

  • layoutOwner : Ext.Component

    Component which sent the layout. Only used when isSetSize is false.

Returns

  • void   
 
alignTo( Mixed element, String position, [Array offsets]) : Component

Aligns this floating Component to the specified element

Aligns this floating Component to the specified element

Parameters

  • element : Mixed

    The element or Ext.Component to align to. If passing a component, it must be a omponent instance. If a string id is passed, it will be used as an element id.

  • position : String

    (optional, defaults to "tl-bl?") The position to align to (see Ext.core.Element.alignTo for more details).

  • offsets : Array

    (optional) Offset the positioning by [x, y]

Returns

  • Component   

    this

 
animate( Object config) : Object
Perform custom animation on this object. This method is applicable to both the the Component class and the Element cl...

Perform custom animation on this object.

This method is applicable to both the the Component class and the Element class. It performs animated transitions of certain properties of this object over a specified timeline.

The sole parameter is an object which specifies start property values, end property values, and properties which describe the timeline. Of the properties listed below, only to is mandatory.

Properties include

  • from
    An object which specifies start values for the properties being animated. If not supplied, properties are animated from current settings. The actual properties which may be animated depend upon ths object being animated. See the sections below on Element and Component animation.
  • to
    An object which specifies end values for the properties being animated.
  • duration
    The duration in milliseconds for which the animation will run.
  • easing
    A string value describing an easing type to modify the rate of change from the default linear to non-linear. Values may be one of:
    • ease
    • easeIn
    • easeOut
    • easeInOut
    • backIn
    • backOut
    • elasticIn
    • elasticOut
    • bounceIn
    • bounceOut
  • keyframes
    This is an object which describes the state of animated properties at certain points along the timeline. it is an object containing properties who's names are the percentage along the timeline being described and who's values specify the animation state at that point.
  • listeners
    This is a standard listeners configuration object which may be used to inject behaviour at either the beforeanimate event or the afteranimate event.

Animating an Element

When animating an Element, the following properties may be specified in from, to, and keyframe objects:
  • x
    The page X position in pixels.
  • y
    The page Y position in pixels
  • left
    The element's CSS left value. Units must be supplied.
  • top
    The element's CSS top value. Units must be supplied.
  • width
    The element's CSS width value. Units must be supplied.
  • height
    The element's CSS height value. Units must be supplied.
  • scrollLeft
    The element's scrollLeft value.
  • scrollTop
    The element's scrollLeft value.
  • opacity
    The element's opacity value. This must be a value between 0 and 1.

Be aware than animating an Element which is being used by an Ext Component without in some way informing the Component about the changed element state will result in incorrect Component behaviour. This is because the Component will be using the old state of the element. To avoid this problem, it is now possible to directly animate certain properties of Components.

Animating a Component

When animating an Element, the following properties may be specified in from, to, and keyframe objects:
  • x
    The Component's page X position in pixels.
  • y
    The Component's page Y position in pixels
  • left
    The Component's left value in pixels.
  • top
    The Component's top value in pixels.
  • width
    The Component's width value in pixels.
  • width
    The Component's width value in pixels.
  • dynamic
    Specify as true to update the Component's layout (if it is a Container) at every frame of the animation. Use sparingly as laying out on every intermediate size change is an expensive operation.

For example, to animate a Window to a new size, ensuring that its internal layout, and any shadow is correct:

myWindow = Ext.create('Ext.window.Window', {
    title: 'Test Component animation',
    width: 500,
    height: 300,
    layout: {
        type: 'hbox',
        align: 'stretch'
    },
    items: [{
        title: 'Left: 33%',
        margins: '5 0 5 5',
        flex: 1
    }, {
        title: 'Left: 66%',
        margins: '5 5 5 5',
        flex: 2
    }]
});
myWindow.show();
myWindow.header.el.on('click', function() {
    myWindow.animate({
        to: {
            width: (myWindow.getWidth() == 500) ? 700 : 500,
            height: (myWindow.getHeight() == 300) ? 400 : 300,
        }
    });
});

For performance reasons, by default, the internal layout is only updated when the Window reaches its final "to" size. If dynamic updating of the Window's child Components is required, then configure the animation with dynamic: true and the two child items will maintain their proportions during the animation.

Parameters

  • config : Object

    An object containing properties which describe the animation's start and end states, and the timeline of the animation.

Returns

  • Object   

    this

 
Applies the state to the object. This should be overridden in subclasses to do more complex state operations. By defa...

Applies the state to the object. This should be overridden in subclasses to do more complex state operations. By default it applies the state properties onto the current object.

Parameters

  • state : Object

    The state

Returns

  • void   
 
beforeComponentLayout( Number adjWidth, Number adjHeight, Boolean isSetSize, Ext.Component layoutOwner) : void
Occurs before componentLayout is run. Returning false from this method will prevent the componentLayout from being ex...

Occurs before componentLayout is run. Returning false from this method will prevent the componentLayout from being executed.

Parameters

  • adjWidth : Number

    The box-adjusted width that was set

  • adjHeight : Number

    The box-adjusted height that was set

  • isSetSize : Boolean

    Whether or not the height/width are stored on the component permanently

  • layoutOwner : Ext.Component

    Component which sent the layout. Only used when isSetSize is false.

Returns

  • void   
 
bubble( Function fn, [Object scope], [Array args]) : Ext.Component
Bubbles up the component/container heirarchy, calling the specified function with each component. The scope (this) of...

Bubbles up the component/container heirarchy, calling the specified function with each component. The scope (this) 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.

Parameters

  • fn : Function

    The function to call

  • scope : Object

    (optional) The scope of the function (defaults to current node)

  • args : Array

    (optional) The args to call the function with (default to passing the current component)

Returns

  • Ext.Component   

    this

 
capture( Observable o, Function fn, [Object scope]) : void
Starts capture on the specified Observable. All events will be passed to the supplied function with the event name + ...

Starts capture on the specified Observable. All events will be passed to the supplied function with the event name + standard signature of the event before the event is fired. If the supplied function returns false, the event will not fire.

Parameters

  • o : Observable

    The Observable to capture events from.

  • fn : Function

    The function to call when an event is fired.

  • scope : Object

    (optional) The scope (this reference) in which the function is executed. Defaults to the Observable firing the event.

Returns

  • void   
 

Center this Component in its container.

Center this Component in its container.

Returns

  • Component   

    this

 

Removes all listeners for this object including the managed listeners

Removes all listeners for this object including the managed listeners

Returns

  • void   
 

Removes all managed listeners for this object.

Removes all managed listeners for this object.

Returns

  • void   
 
cloneConfig( Object overrides) : Ext.Component

Clone the current component using the original config values passed into this instance by default.

Clone the current component using the original config values passed into this instance by default.

Parameters

  • overrides : Object

    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.

Returns

  • Ext.Component   

    clone The cloned copy of this component

 

Destroys this stateful object.

Destroys this stateful object.

Returns

  • void   
 

Disable the component.

Disable the component.

Parameters

  • silent : Boolean

    Passing true, will supress the 'disable' event from being fired.

Returns

  • void   
 
Handles autoRender. Floating Components may have an ownerCt. If they are asking to be constrained, constrain them wit...

Handles autoRender. Floating Components may have an ownerCt. If they are asking to be constrained, constrain them within that ownerCt, and have their z-index managed locally. Floating Components are always rendered to document.body

Returns

  • void   
 
doComponentLayout( Object width, Object height, Object isSetSize, Object ownerCt) : Ext.container.Container
This method needs to be called whenever you change something on this component that requires the Component's layout t...

This method needs to be called whenever you change something on this component that requires the Component's layout to be recalculated.

Parameters

  • width : Object
  • height : Object
  • isSetSize : Object
  • ownerCt : Object

Returns

  • Ext.container.Container   

    this

 
doConstrain( Mixed constrainTo) : void
Moves this floating Component into a constrain region. By default, this Component is constrained to be within the c...

Moves this floating Component into a constrain region.

By default, this Component is constrained to be within the container it was added to, or the element it was rendered to.

An alternative constraint may be passed.

Parameters

  • constrainTo : Mixed

    Optional. The Element or Region into which this Component is to be constrained.

Returns

  • void   
 

Enable the component

Enable the component

Parameters

  • silent : Boolean

    Passing false will supress the 'enable' event from being fired.

Returns

  • void   
 
enableBubble( String/Array events) : void
Enables events fired by this Observable to bubble up an owner hierarchy by calling this.getBubbleTarget() if present....

Enables events fired by this Observable to bubble up an owner hierarchy by calling this.getBubbleTarget() if present. There is no implementation in the Observable base class.

This is commonly used by Ext.Components to bubble events to owner Containers. See getBubbleTarget. The default implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to access the required target more quickly.

Example:

Ext.override(Ext.form.field.Base, {
//  Add functionality to Field's initComponent to enable the change event to bubble
initComponent : Ext.Function.createSequence(Ext.form.field.Base.prototype.initComponent, function() {
    this.enableBubble('change');
}),

//  We know that we want Field's events to bubble directly to the FormPanel.
getBubbleTarget : function() {
    if (!this.formPanel) {
        this.formPanel = this.findParentByType('form');
    }
    return this.formPanel;
}
});

var myForm = new Ext.formPanel({
title: 'User Details',
items: [{
    ...
}],
listeners: {
    change: function() {
        // Title goes red if form has been modified.
        myForm.header.setStyle('color', 'red');
    }
}
});

Parameters

  • events : String/Array

    The event name to bubble, or an Array of event names.

Returns

  • void   
 
This method finds the topmost active layout who's processing will eventually determine the size and position of this ...

This method finds the topmost active layout who's processing will eventually determine the size and position of this Component.

This method is useful when dynamically adding Components into Containers, and some processing must take place after the final sizing and positioning of the Component has been performed.

Returns

  • void   
 
findParentBy( Function fn) : Ext.container.Container
Find a container above this component at any level by a custom function. If the passed function returns true, the con...

Find a container above this component at any level by a custom function. If the passed function returns true, the container will be returned.

Parameters

  • fn : Function

    The custom function to call with the arguments (container, this component).

Returns

  • Ext.container.Container   

    The first Container for which the custom function returns true

 
findParentByType( String/Class xtype) : Ext.container.Container

Find a container above this component at any level by xtype or class

See also the up method.

Find a container above this component at any level by xtype or class

See also the up method.

Parameters

  • xtype : String/Class

    The xtype string for a component, or the class of the component directly

Returns

  • Ext.container.Container   

    The first Container which matches the given xtype or class

 
fireEvent( String eventName, Object... args) : Boolean
Fires the specified event with the passed parameters (minus the event name). An event may be set to bubble up an Ob...

Fires the specified event with the passed parameters (minus the event name).

An event may be set to bubble up an Observable parent hierarchy (See getBubbleTarget) by calling enableBubble.

Parameters

  • eventName : String

    The name of the event to fire.

  • args : Object...

    Variable number of parameters are passed to handlers.

Returns

  • Boolean   

    returns false if any of the handlers return false otherwise it returns true.

 
focus( [Boolean selectText], [Boolean/Number delay]) : Ext.Component

Try to focus this component.

Try to focus this component.

Parameters

  • selectText : Boolean

    (optional) If applicable, true to also select the text in this component

  • delay : Boolean/Number

    (optional) Delay the focus this number of milliseconds (true for 10 milliseconds).

Returns

  • Ext.Component   

    this

 

Returns thq current animation if this object has any effects actively running or queued, else returns false.

Returns thq current animation if this object has any effects actively running or queued, else returns false.

Returns

  • Mixed   

    anim if element has active effects, else false

 
getBox( [Boolean local]) : Object

Gets the current box measurements of the component's underlying element.

Gets the current box measurements of the component's underlying element.

Parameters

  • local : Boolean

    (optional) If true the element's left and top are returned instead of page XY (defaults to false)

Returns

  • Object   

    box An object in the format {x, y, width, height}

 

Provides the link for Observable's fireEvent method to bubble up the ownership hierarchy.

Provides the link for Observable's fireEvent method to bubble up the ownership hierarchy.

Returns

  • Ext.container.Container   

    the Container which owns this Component.

 

Retrieves the top level element representing this component.

Retrieves the top level element representing this component.

Returns

  • void   
 

Gets the current height of the component's underlying element.

Gets the current height of the component's underlying element.

Returns

  • Number   
 

Retrieves the id of this component. Will autogenerate an id if one has not already been set.

Retrieves the id of this component. Will autogenerate an id if one has not already been set.

Returns

  • void   
 
getInsertPosition( String/Number/Element/HTMLElement position) : HTMLElement
This function takes the position argument passed to onRender and returns a DOM element that you can use in the insert...

This function takes the position argument passed to onRender and returns a DOM element that you can use in the insertBefore.

Parameters

  • position : String/Number/Element/HTMLElement

    Index, element id or element you want to put this component before.

Returns

  • HTMLElement   

    DOM element that you can use in the insertBefore

 

Gets the Ext.ComponentLoader for this Component.

Gets the Ext.ComponentLoader for this Component.

Returns

  • Ext.ComponentLoader   

    The loader instance, null if it doesn't exist.

 
getPlugin( Object pluginId) : Ext.AbstractPlugin

Retrieves a plugin by its pluginId which has been bound to this component.

Retrieves a plugin by its pluginId which has been bound to this component.

Parameters

  • pluginId : Object

Returns

  • Ext.AbstractPlugin   

    pluginInstance

 
getPosition( [Boolean local]) : Array

Gets the current XY position of the component's underlying element.

Gets the current XY position of the component's underlying element.

Parameters

  • local : Boolean

    (optional) If true the element's left and top are returned instead of page XY (defaults to false)

Returns

  • Array   

    The XY position of the element (e.g., [100, 200])

 

Gets the current size of the component's underlying element.

Gets the current size of the component's underlying element.

Returns

  • Object   

    An object containing the element's size {width: (element width), height: (element height)}

 
Gets the current state of the object. By default this function returns null, it should be overridden in subclasses to...

Gets the current state of the object. By default this function returns null, it should be overridden in subclasses to implement methods for getting the state.

Returns

  • Object   

    The current state

 

Gets the state id for this object.

Gets the state id for this object.

Returns

  • String   

    The state id, null if not found.

 

Gets the current width of the component's underlying element.

Gets the current width of the component's underlying element.

Returns

  • Number   
 
Gets the xtype for this component as registered with Ext.ComponentManager. For a list of all available xtypes, see th...

Gets the xtype for this component as registered with Ext.ComponentManager. For a list of all available xtypes, see the Ext.Component header. Example usage:

var t = new Ext.form.field.Text();
alert(t.getXType());  // alerts 'textfield'

Returns

  • String   

    The xtype

 
Returns this Component's xtype hierarchy as a slash-delimited string. For a list of all available xtypes, see the Ext...

Returns this Component's xtype hierarchy as a slash-delimited string. For a list of all available xtypes, see the Ext.Component header.

If using your own subclasses, be aware that a Component must register its own xtype to participate in determination of inherited xtypes.

Example usage:

var t = new Ext.form.field.Text();
alert(t.getXTypes());  // alerts 'component/field/textfield'

Returns

  • String   

    The xtype hierarchy string

 
hasListener( String eventName) : Boolean

Checks to see if this object has any listeners for a specified event

Checks to see if this object has any listeners for a specified event

Parameters

  • eventName : String

    The name of the event to check for

Returns

  • Boolean   

    True if the event is being listened for, else false

 

Checks if there is currently a specified uiCls

Checks if there is currently a specified uiCls

Parameters

  • cls : String

    The cls to check

Returns

  • void   
 
hide( String/Element/Component animateTarget, [Function callback], [Object scope]) : Ext.Component

Hides this Component, setting it to invisible using the configured hideMode.

Hides this Component, setting it to invisible using the configured hideMode.

Parameters

  • animateTarget : String/Element/Component

    Optional, and only valid for floating Components such as Windows or ToolTips, or regular Components which have been configured with floating: true.. The target to which the Component should animate while hiding (defaults to null with no animation)

  • callback : Function

    (optional) A callback function to call after the Component is hidden.

  • scope : Object

    (optional) The scope (this reference) in which the callback is executed. Defaults to this Component.

Returns

  • Ext.Component   

    this

 
is( String selector) : Boolean

Tests whether this Component matches the selector string.

Tests whether this Component matches the selector string.

Parameters

  • selector : String

    The selector string to test against.

Returns

  • Boolean   

    True if this Component matches the selector.

 
isDescendantOf( Ext.Container container) : Boolean

Determines whether this component is the descendant of a particular container.

Determines whether this component is the descendant of a particular container.

Parameters

  • container : Ext.Container

Returns

  • Boolean   

    isDescendant

 

Method to determine whether this Component is currently disabled.

Method to determine whether this Component is currently disabled.

Returns

  • Boolean   

    the disabled state of this Component.

 

Method to determine whether this Component is draggable.

Method to determine whether this Component is draggable.

Returns

  • Boolean   

    the draggable state of this component.

 

Method to determine whether this Component is droppable.

Method to determine whether this Component is droppable.

Returns

  • Boolean   

    the droppable state of this component.

 

Method to determine whether this Component is floating.

Method to determine whether this Component is floating.

Returns

  • Boolean   

    the floating state of this component.

 

Method to determine whether this Component is currently set to hidden.

Method to determine whether this Component is currently set to hidden.

Returns

  • Boolean   

    the hidden state of this Component.

 

Returns true if this component is visible.

Returns true if this component is visible.

Parameters

  • deep : Boolean

    .

    Optional. Pass true to interrogate the visibility status of all parent Containers to determine whether this Component is truly visible to the user.

    Generally, to determine whether a Component is hidden, the no argument form is needed. For example when creating dynamically laid out UIs in a hidden Container before showing them.

Returns

  • Boolean   

    True if this component is visible, false otherwise.

 
isXType( String xtype, [Boolean shallow]) : Boolean
Tests whether or not this Component is of a specific xtype. This can test whether this Component is descended from th...

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).

If using your own subclasses, be aware that a Component must register its own xtype to participate in determination of inherited xtypes.

For a list of all available xtypes, see the Ext.Component header.

Example usage:

var t = new Ext.form.field.Text();
var isText = t.isXType('textfield');        // true
var isBoxSubclass = t.isXType('field');       // true, descended from Ext.form.field.Base
var isBoxInstance = t.isXType('field', true); // false, not a direct Ext.form.field.Base instance

Parameters

  • xtype : String

    The xtype to check for this Component

  • shallow : Boolean

    (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.

Returns

  • Boolean   

    True if this component descends from the specified xtype, false otherwise.

 
nextNode( String selector, Object includeSelf) : void
Returns the next node in the Component tree in tree traversal order. Note that this is not limited to siblings, and...

Returns the next node in the Component tree in tree traversal order.

Note that this is not limited to siblings, and if invoked upon a node with no matching siblings, will walk the tree to attempt to find a match. Contrast with pnextSibling.

Parameters

  • selector : String

    Optional A ComponentQuery selector to filter the following nodes.

  • includeSelf : Object

Returns

  • void   

    The next node (or the next node which matches the selector). Returns null if there is no matching node.

 
Returns the next sibling of this Component. Optionally selects the next sibling which matches the passed ComponentQ...

Returns the next sibling of this Component.

Optionally selects the next sibling which matches the passed ComponentQuery selector.

May also be refered to as next()

Note that this is limited to siblings, and if no siblings of the item match, null is returned. Contrast with nextNode

Parameters

  • selector : String

    Optional A ComponentQuery selector to filter the following items.

Returns

  • void   

    The next sibling (or the next sibling which matches the selector). Returns null if there is no matching sibling.

 
observe( Function c, Object listeners) : void
Sets observability on the passed class constructor. This makes any event fired on any instance of the passed class a...

Sets observability on the passed class constructor.

This makes any event fired on any instance of the passed class also fire a single event through the class allowing for central handling of events on many instances at once.

Usage:

Ext.util.Observable.observe(Ext.data.Connection);
Ext.data.Connection.on('beforerequest', function(con, options) {
    console.log('Ajax request made to ' + options.url);
});

Parameters

  • c : Function

    The class constructor to make observable.

  • listeners : Object

    An object containing a series of listeners to add. See addListener.

Returns

  • void   
 
on( String eventName, Function handler, [Object scope], [Object options]) : void

Appends an event handler to this object (shorthand for addListener.)

Appends an event handler to this object (shorthand for addListener.)

Parameters

  • eventName : String

    The type of event to listen for

  • handler : Function

    The method the event invokes

  • scope : Object

    (optional) The scope (this reference) in which the handler function is executed. If omitted, defaults to the object which fired the event.

  • options : Object

    (optional) An object containing handler configuration.

Returns

  • void   
 
previousNode( String selector, Object includeSelf) : void
Returns the previous node in the Component tree in tree traversal order. Note that this is not limited to siblings,...

Returns the previous node in the Component tree in tree traversal order.

Note that this is not limited to siblings, and if invoked upon a node with no matching siblings, will walk the tree in reverse order to attempt to find a match. Contrast with previousSibling.

Parameters

  • selector : String

    Optional. A ComponentQuery selector to filter the preceding nodes.

  • includeSelf : Object

Returns

  • void   

    The previous node (or the previous node which matches the selector). Returns null if there is no matching node.

 
Returns the previous sibling of this Component. Optionally selects the previous sibling which matches the passed Co...

Returns the previous sibling of this Component.

Optionally selects the previous sibling which matches the passed ComponentQuery selector.

May also be refered to as prev()

Note that this is limited to siblings, and if no siblings of the item match, null is returned. Contrast with previousNode

Parameters

  • selector : String

    Optional. A ComponentQuery selector to filter the preceding items.

Returns

  • void   

    The previous sibling (or the previous sibling which matches the selector). Returns null if there is no matching sibling.

 
relayEvents( Object origin, Array events, Object prefix) : void

Relays selected events from the specified Observable as if the events were fired by this.

Relays selected events from the specified Observable as if the events were fired by this.

Parameters

  • origin : Object

    The Observable whose events this object is to relay.

  • events : Array

    Array of event names to relay.

  • prefix : Object

Returns

  • void   
 

Removes all added captures from the Observable.

Removes all added captures from the Observable.

Parameters

  • o : Observable

    The Observable to release

Returns

  • void   
 
removeCls( Object className) : Ext.Component

Removes a CSS class from the top level element representing this component.

Removes a CSS class from the top level element representing this component.

Parameters

  • className : Object

Returns

  • Ext.Component   

    Returns the Component to allow method chaining.

 
Removes a cls to the uiCls array, which will also call removeUIClsToElement and removes it from all elements of this ...

Removes a cls to the uiCls array, which will also call removeUIClsToElement and removes it from all elements of this component.

Parameters

  • cls : String/Array

    A string or an array of strings to remove to the uiCls

Returns

  • void   
 
removeListener( String eventName, Function handler, [Object scope]) : void

Removes an event handler.

Removes an event handler.

Parameters

  • eventName : String

    The type of event the handler was associated with.

  • handler : Function

    The handler to remove. This must be a reference to the function passed into the addListener call.

  • scope : Object

    (optional) The scope originally specified for the handler.

Returns

  • void   
 
removeManagedListener( Observable|Element item, Object|String ename, Function fn, Object scope) : void

Removes listeners that were added by the mon method.

Removes listeners that were added by the mon method.

Parameters

  • item : Observable|Element

    The item from which to remove a listener/listeners.

  • ename : Object|String

    The event name, or an object containing event name properties.

  • fn : Function

    Optional. If the ename parameter was an event name, this is the handler function.

  • scope : Object

    Optional. If the ename parameter was an event name, this is the scope (this reference) in which the handler function is executed.

Returns

  • void   
 
Resume firing events. (see suspendEvents) If events were suspended using the queueSuspended parameter, then all event...

Resume firing events. (see suspendEvents) If events were suspended using the queueSuspended parameter, then all events fired during event suspension will be sent to any listeners now.

Returns

  • void   
 
Ensures that all effects queued after sequenceFx is called on this object are run in sequence. This is the opposite ...

Ensures that all effects queued after sequenceFx is called on this object are run in sequence. This is the opposite of syncFx.

Returns

  • Ext.core.Element   

    The Element

 
setActive( Boolean active, Component newActive) : void
This method is called internally by Ext.ZIndexManager to signal that a floating Component has either been moved to th...

This method is called internally by Ext.ZIndexManager to signal that a floating Component has either been moved to the top of its zIndex stack, or pushed from the top of its zIndex stack.

If a Window is superceded by another Window, deactivating it hides its shadow.

This method also fires the activate or deactivate event depending on which action occurred.

Parameters

  • active : Boolean

    True to activate the Component, false to deactivate it (defaults to false)

  • newActive : Component

    The newly active Component which is taking over topmost zIndex position.

Returns

  • void   
 
setAutoScroll( Boolean scroll) : Ext.Component

Sets the overflow on the content element of the component.

Sets the overflow on the content element of the component.

Parameters

  • scroll : Boolean

    True to allow the Component to auto scroll.

Returns

  • Ext.Component   

    this

 

Enable or disable the component.

Enable or disable the component.

Parameters

  • disabled : Boolean

Returns

  • void   
 
setDocked( Object dock, Object layoutParent) : Component
Sets the dock position of this component in its parent panel. Note that this only has effect if this item is part of ...

Sets the dock position of this component in its parent panel. Note that this only has effect if this item is part of the dockedItems collection of a parent that has a DockLayout (note that any Panel has a DockLayout by default)

Parameters

  • dock : Object
  • layoutParent : Object

Returns

  • Component   

    this

 
setHeight( Number height) : Ext.Component

Sets the height of the component. This method fires the resize event.

Sets the height of the component. This method fires the resize event.

Parameters

  • height : Number

    The new height to set. This may be one of:

    • A Number specifying the new height in the Element's Ext.core.Element.defaultUnits (by default, pixels).
    • A String used to set the CSS height style.
    • undefined to leave the height unchanged.

Returns

  • Ext.Component   

    this

 
setLoading( Boolean/Object/String load, Boolean targetEl) : Ext.LoadMask

This method allows you to show or hide a LoadMask on top of this component.

This method allows you to show or hide a LoadMask on top of this component.

Parameters

  • load : Boolean/Object/String

    True to show the default LoadMask, a config object that will be passed to the LoadMask constructor, or a message String to show. False to hide the current LoadMask.

  • targetEl : Boolean

    True to mask the targetEl of this Component instead of the this.el. For example, setting this to true on a Panel will cause only the body to be masked. (defaults to false)

Returns

  • Ext.LoadMask   

    The LoadMask instance that has just been shown.

 
setPagePosition( Number x, Number y, Mixed animate) : Ext.Component
Sets the page XY position of the component. To set the left and top instead, use setPosition. This method fires the ...

Sets the page XY position of the component. To set the left and top instead, use setPosition. This method fires the move event.

Parameters

  • x : Number

    The new x position

  • y : Number

    The new y position

  • animate : Mixed

    If passed, the Component is animated into its new position. If this parameter is a number, it is used as the animation duration in milliseconds.

Returns

  • Ext.Component   

    this

 
setPosition( Number left, Number top, Mixed animate) : Ext.Component
Sets the left and top of the component. To set the page XY position instead, use setPagePosition. This method fires ...

Sets the left and top of the component. To set the page XY position instead, use setPagePosition. This method fires the move event.

Parameters

  • left : Number

    The new left

  • top : Number

    The new top

  • animate : Mixed

    If true, the Component is animated into its new position. You may also pass an animation configuration.

Returns

  • Ext.Component   

    this

 
setSize( Mixed width, Mixed height) : Ext.Component
Sets the width and height of this Component. This method fires the resize event. This method can accept either width ...

Sets the width and height of this Component. This method fires the resize event. This method can accept either width and height as separate arguments, or you can pass a size object like {width:10, height:20}.

Parameters

  • width : Mixed

    The new width to set. This may be one of:

    • A Number specifying the new width in the Element's Ext.core.Element.defaultUnits (by default, pixels).
    • A String used to set the CSS width style.
    • A size object in the format {width: widthValue, height: heightValue}.
    • undefined to leave the width unchanged.

  • height : Mixed

    The new height to set (not required if a size object is passed as the first arg). This may be one of:

    • A Number specifying the new height in the Element's Ext.core.Element.defaultUnits (by default, pixels).
    • A String used to set the CSS height style. Animation may not be used.
    • undefined to leave the height unchanged.

Returns

  • Ext.Component   

    this

 
Sets the UI for the component. This will remove any existing UIs on the component. It will also loop through any uiCl...

Sets the UI for the component. This will remove any existing UIs on the component. It will also loop through any uiCls set on the component and rename them so they include the new UI

Parameters

  • ui : String

    The new UI for the component

Returns

  • void   
 
setVisible( Boolean visible) : Ext.Component

Convenience function to hide or show this component by boolean.

Convenience function to hide or show this component by boolean.

Parameters

  • visible : Boolean

    True to show, false to hide

Returns

  • Ext.Component   

    this

 
setWidth( Number width) : Ext.Component

Sets the width of the component. This method fires the resize event.

Sets the width of the component. This method fires the resize event.

Parameters

  • width : Number

    The new width to setThis may be one of:

Returns

  • Ext.Component   

    this

 
show( String/Element animateTarget, [Function callback], [Object scope]) : Component
Shows this Component, rendering it first if autoRender or {"floating are true. After being shown, a floating C...

Shows this Component, rendering it first if autoRender or {"floating are true.

After being shown, a floating Component (such as a Ext.window.Window), is activated it and brought to the front of its z-index stack.

Parameters

  • animateTarget : String/Element

    Optional, and only valid for floating Components such as Windows or ToolTips, or regular Components which have been configured with floating: true. The target from which the Component should animate from while opening (defaults to null with no animation)

  • callback : Function

    (optional) A callback function to call after the Component is displayed. Only necessary if animation was specified.

  • scope : Object

    (optional) The scope (this reference) in which the callback is executed. Defaults to this Component.

Returns

  • Component   

    this

 
@deprecated 4.0 Replaced by stopAnimation Stops any running effects and clears this object's internal effects queue i...

@deprecated 4.0 Replaced by stopAnimation Stops any running effects and clears this object's internal effects queue if it contains any additional effects that haven't started yet.

Returns

  • Ext.core.Element   

    The Element

 
suspendEvents( Boolean queueSuspended) : void

Suspend the firing of all events. (see resumeEvents)

Suspend the firing of all events. (see resumeEvents)

Parameters

  • queueSuspended : Boolean

    Pass as true to queue up suspended events to be fired after the resumeEvents call instead of discarding all suspended events;

Returns

  • void   
 
Ensures that all effects queued after syncFx is called on this object are run concurrently. This is the opposite of ...

Ensures that all effects queued after syncFx is called on this object are run concurrently. This is the opposite of sequenceFx.

Returns

  • Ext.core.Element   

    The Element

 

Sends this Component to the back of (lower z-index than) any other visible windows

Sends this Component to the back of (lower z-index than) any other visible windows

Returns

  • Component   

    this

 
toFront( [Boolean preventFocus]) : Component
Brings this floating Component to the front of any other visible, floating Components managed by the same ZIndexManag...

Brings this floating Component to the front of any other visible, floating Components managed by the same ZIndexManager

If this Component is modal, inserts the modal mask just below this Component in the z-index stack.

Parameters

  • preventFocus : Boolean

    (optional) Specify true to prevent the Component from being focused.

Returns

  • Component   

    this

 
un( String eventName, Function handler, [Object scope]) : void

Removes an event handler (shorthand for removeListener.)

Removes an event handler (shorthand for removeListener.)

Parameters

  • eventName : String

    The type of event the handler was associated with.

  • handler : Function

    The handler to remove. This must be a reference to the function passed into the addListener call.

  • scope : Object

    (optional) The scope originally specified for the handler.

Returns

  • void   
 
up( String selector) : Container
Walks up the ownerCt axis looking for an ancestor Container which matches the passed simple selector. Example: var ...

Walks up the ownerCt axis looking for an ancestor Container which matches the passed simple selector.

Example:

var owningTabPanel = grid.up('tabpanel');

Parameters

  • selector : String

    Optional. The simple selector to test.

Returns

  • Container   

    The matching ancestor Container (or undefined if no match was found).

 
update( Mixed htmlOrData, [Boolean loadScripts], [Function callback]) : void

Update the content area of a component.

Update the content area of a component.

Parameters

  • htmlOrData : Mixed

    If this component has been configured with a template via the tpl config then it will use this argument as data to populate the template. If this component was not configured with a template, the components content area will be updated via Ext.core.Element update

  • loadScripts : Boolean

    (optional) Only legitimate when using the html configuration. Defaults to false

  • callback : Function

    (optional) Only legitimate when using the html configuration. Callback to execute when scripts have finished loading

Returns

  • void   
 
updateBox( Object box) : Ext.Component

Sets the current box measurements of the component's underlying element.

Sets the current box measurements of the component's underlying element.

Parameters

  • box : Object

    An object in the format {x, y, width, height}

Returns

  • Ext.Component   

    this

Defined By

Events

 

Fires after a Component has been visually activated.

Fires after a Component has been visually activated.

Parameters

  • this : Ext.Component
 
added( Ext.Component this, Ext.container.Container container, Number pos)

Fires after a Component had been added to a Container.

Fires after a Component had been added to a Container.

Parameters

  • this : Ext.Component
  • container : Ext.container.Container

    Parent Container

  • pos : Number

    position of Component

 
Fires after the component rendering is finished. The afterrender event is fired after this Component has been rende...

Fires after the component rendering is finished.

The afterrender event is fired after this Component has been rendered, been postprocesed by any afterRender method defined for the Component.

Parameters

  • this : Ext.Component
 
Fires before a Component has been visually activated. Returning false from an event listener can prevent the activate...

Fires before a Component has been visually activated. Returning false from an event listener can prevent the activate from occurring.

Parameters

  • this : Ext.Component
 
Fires before a Component has been visually deactivated. Returning false from an event listener can prevent the deacti...

Fires before a Component has been visually deactivated. Returning false from an event listener can prevent the deactivate from occurring.

Parameters

  • this : Ext.Component
 

Fires before the component is destroyed. Return false from an event handler to stop the destroy.

Fires before the component is destroyed. Return false from an event handler to stop the destroy.

Parameters

  • this : Ext.Component
 

Fires before the component is hidden when calling the hide method. Return false from an event handler to stop the hide.

Fires before the component is hidden when calling the hide method. Return false from an event handler to stop the hide.

Parameters

  • this : Ext.Component
 

Fires before the component is rendered. Return false from an event handler to stop the render.

Fires before the component is rendered. Return false from an event handler to stop the render.

Parameters

  • this : Ext.Component
 

Fires before the component is shown when calling the show method. Return false from an event handler to stop the show.

Fires before the component is shown when calling the show method. Return false from an event handler to stop the show.

Parameters

  • this : Ext.Component
 
beforestaterestore( Ext.state.Stateful this, Object state)

Fires before the state of the object is restored. Return false from an event handler to stop the restore.

Fires before the state of the object is restored. Return false from an event handler to stop the restore.

Parameters

  • this : Ext.state.Stateful
  • state : Object

    The hash of state values returned from the StateProvider. If this event is not vetoed, then the state object is passed to applyState. By default, that simply copies property values into this object. The method maybe overriden to provide custom state restoration.

 
beforestatesave( Ext.state.Stateful this, Object state)

Fires before the state of the object is saved to the configured state provider. Return false to stop the save.

Fires before the state of the object is saved to the configured state provider. Return false to stop the save.

Parameters

  • this : Ext.state.Stateful
  • state : Object

    The hash of state values. This is determined by calling getState() on the object. This method must be provided by the developer to return whetever representation of state is required, by default, Ext.state.Stateful has a null implementation.

 

Fires after a Component has been visually deactivated.

Fires after a Component has been visually deactivated.

Parameters

  • this : Ext.Component
 

Fires after the component is destroyed.

Fires after the component is destroyed.

Parameters

  • this : Ext.Component
 

Fires after the component is disabled.

Fires after the component is disabled.

Parameters

  • this : Ext.Component
 

Fires after the component is enabled.

Fires after the component is enabled.

Parameters

  • this : Ext.Component
 

Fires after the component is hidden. Fires after the component is hidden when calling the hide method.

Fires after the component is hidden. Fires after the component is hidden when calling the hide method.

Parameters

  • this : Ext.Component
 
move( Ext.Component this, Number x, Number y)

Fires after the component is moved.

Fires after the component is moved.

Parameters

  • this : Ext.Component
  • x : Number

    The new x position

  • y : Number

    The new y position

 
removed( Ext.Component this, Ext.container.Container ownerCt)

Fires when a component is removed from an Ext.container.Container

Fires when a component is removed from an Ext.container.Container

Parameters

  • this : Ext.Component
  • ownerCt : Ext.container.Container

    Container which holds the component

 

Fires after the component markup is rendered.

Fires after the component markup is rendered.

Parameters

  • this : Ext.Component
 
resize( Ext.Component this, Number adjWidth, Number adjHeight)

Fires after the component is resized.

Fires after the component is resized.

Parameters

  • this : Ext.Component
  • adjWidth : Number

    The box-adjusted width that was set

  • adjHeight : Number

    The box-adjusted height that was set

 

Fires after the component is shown when calling the show method.

Fires after the component is shown when calling the show method.

Parameters

  • this : Ext.Component
 
staterestore( Ext.state.Stateful this, Object state)

Fires after the state of the object is restored.

Fires after the state of the object is restored.

Parameters

  • this : Ext.state.Stateful
  • state : Object

    The hash of state values returned from the StateProvider. This is passed to applyState. By default, that simply copies property values into this object. The method maybe overriden to provide custom state restoration.

 
statesave( Ext.state.Stateful this, Object state)

Fires after the state of the object is saved to the configured state provider.

Fires after the state of the object is saved to the configured state provider.

Parameters

  • this : Ext.state.Stateful
  • state : Object

    The hash of state values. This is determined by calling getState() on the object. This method must be provided by the developer to return whetever representation of state is required, by default, Ext.state.Stateful has a null implementation.