ExtReact Docs Help

Introduction

The documentation for the ExtReact product diverges somewhat from the documentation of other Sencha products. The sections below describe documentation for all products except where indicated as unique to ExtReact.

Terms, Icons, and Labels

Many classes have shortcut names used when creating (instantiating) a class with a configuration object. The shortcut name is referred to as an alias (or xtype if the class extends Ext.Component). The alias/xtype is listed next to the class name of applicable classes for quick reference.

ExtReact component classes list the configurable name prominently at the top of the API class doc followed by the fully-qualified class name.

Access Levels

Framework classes or their members may be specified as private or protected. Else, the class / member is public. Public, protected, and private are access descriptors used to convey how and when the class or class member should be used.

Member Types

Member Syntax

Below is an example class member that we can disect to show the syntax of a class member (the lookupComponent method as viewed from the Ext.button.Button class in this case).

lookupComponent ( item ) : Ext.Component
protected

Called when a raw config object is added to this container either during initialization of the items config, or when new items are added), or {@link #insert inserted.

This method converts the passed object into an instanced child component.

This may be overridden in subclasses when special processing needs to be applied to child creation.

Parameters

item :  Object

The config object being added.

Returns
Ext.Component

The component to be added.

Let's look at each part of the member row:

Member Flags

The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon.

Class Icons

- Indicates a framework class

- A singleton framework class. *See the singleton flag for more information

- A component-type framework class (any class within the Ext JS framework that extends Ext.Component)

- Indicates that the class, member, or guide is new in the currently viewed version

Member Icons

- Indicates a class member of type config

Or in the case of an ExtReact component class this indicates a member of type prop

- Indicates a class member of type property

- Indicates a class member of type method

- Indicates a class member of type event

- Indicates a class member of type theme variable

- Indicates a class member of type theme mixin

- Indicates that the class, member, or guide is new in the currently viewed version

Class Member Quick-Nav Menu

Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type (this count is updated as filters are applied). Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation.

Getter and Setter Methods

Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference.

ExtReact component classes do not hoist the getter / setter methods into the prop. All methods will be described in the Methods section

History Bar

Your page history is kept in localstorage and displayed (using the available real estate) just below the top title bar. By default, the only search results shown are the pages matching the product / version you're currently viewing. You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. This will show all recent pages in the history bar for all products / versions.

Within the history config menu you will also see a listing of your recent page visits. The results are filtered by the "Current Product / Version" and "All" radio options. Clicking on the button will clear the history bar as well as the history kept in local storage.

If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled. When checked, the product/version for each historic page will show alongside the page name in the history bar. Hovering the cursor over the page names in the history bar will also show the product/version as a tooltip.

Search and Filters

Both API docs and guides can be searched for using the search field at the top of the page.

On API doc pages there is also a filter input field that filters the member rows using the filter string. In addition to filtering by string you can filter the class members by access level, inheritance, and read only. This is done using the checkboxes at the top of the page.

The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes.

Clicking on an empty search field will show your last 10 searches for quick navigation.

API Doc Class Metadata

Each API doc page (with the exception of Javascript primitives pages) has a menu view of metadata relating to that class. This metadata view will have one or more of the following:

Expanding and Collapsing Examples and Class Members

Runnable examples (Fiddles) are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block. You can also toggle the collapse state of all examples using the toggle button on the top-right of the page. The toggle-all state will be remembered between page loads.

Class members are collapsed on a page by default. You can expand and collapse members using the arrow icon on the left of the member row or globally using the expand / collapse all toggle button top-right.

Desktop -vs- Mobile View

Viewing the docs on narrower screens or browsers will result in a view optimized for a smaller form factor. The primary differences between the desktop and "mobile" view are:

Viewing the Class Source

The class source can be viewed by clicking on the class name at the top of an API doc page. The source for class members can be viewed by clicking on the "view source" link on the right-hand side of the member row.

ExtReact 6.7.0


top

Ext.Viewport singleton

Summary

Ext.Viewport is an instance created when you use Ext#setup. Because Ext.Viewport extends from Container, it has a layout that defaults to Ext.layout.Card. This means you can add items to it at any time, from anywhere in your code. The Ext.Viewport cfg-fullscreen configuration is true by default, so it will take up your whole screen.

If you want to customize anything about this Ext.Viewport instance, you can do so by adding a property called viewport into your Ext#setup object:

Note if you use Ext#onReady, this instance of Ext.Viewport will not be created. Though, in most cases, you should not use Ext#onReady.

No members found using the current filters

configs

Optional Configs

activeChildTabIndex : Number

DOM tabIndex attribute to set on the active Focusable child of this container when using the "Roaming tabindex" technique.

Defaults to:

0

activeItem : Ext.Component / Object / String / Number
bindable bind

The item from the cfg-items collection that will be active first. This is usually only meaningful in a Ext.layout.Card, where only one item can be active at a time. If passed a string, it will be assumed to be a Ext.ComponentQuery selector. A number will reference an index or a Ext.Component instance may be passed as well. An object config will be created as a new component.

Defaults to:

0

getActiveItem : Ext.Component / Object / String / Number

Returns the value of activeItem

Returns

Ext.Component / Object / String / Number

setActiveItem (activeItem)

Sets the value of activeItem

Parameters

activeItem :  Ext.Component / Object / String / Number

allowFocusingDisabledChildren : Boolean

Set this to true to enable focusing disabled child items via keyboard.

Defaults to:

false

ariaAttributes : Object
bindable bind

An object containing ARIA attributes to be set on this Component's ARIA element. Use this to set the attributes that cannot be determined by the Component's state, such as aria-live, aria-flowto, etc.

Note that this config is only meaningful at the Component rendering time, and setting it after that will do nothing.

Defaults to:

null

getAriaAttributes : Object

Returns the value of ariaAttributes

Returns

Object

setAriaAttributes (ariaAttributes)

Sets the value of ariaAttributes

Parameters

ariaAttributes :  Object

ariaDescribedBy : String

DOM selector for a child element that is to be used as description for this Component, set in aria-describedby attribute. The selector works the same way as ariaLabelledBy.

ariaLabel : String

ARIA label for this Component. It is best to use ariaLabelledBy option instead, because screen readers prefer aria-labelledby attribute to aria-label. ariaLabel and ariaLabelledBy config options are mutually exclusive.

ariaLabelledBy : String

DOM selector for a child element that is to be used as label for this Component, set in aria-labelledby attribute. If the selector is by #id, the label element can be any existing element, not necessarily a child of the main Component element.

ariaLabelledBy and ariaLabel config options are mutually exclusive, and ariaLabelledBy has the higher precedence.

autoBlurInput
bindable bind private pri

Auto blur the focused element when touching on a non-input. This is used to work around Android bugs where the virtual keyboard is not hidden when tapping outside an input.

Defaults to:

true

getAutoBlurInput

Returns the value of autoBlurInput

Returns

setAutoBlurInput (autoBlurInput)

Sets the value of autoBlurInput

Parameters

autoBlurInput :  Object

autoDestroy : Boolean
bindable bind

If true, child items will be destroyed as soon as they are removed from this container.

Defaults to:

true

getAutoDestroy : Boolean

Returns the value of autoDestroy

Returns

Boolean

setAutoDestroy (autoDestroy)

Sets the value of autoDestroy

Parameters

autoDestroy :  Boolean

autoMaximize
bindable bind private pri

Defaults to:

false

getAutoMaximize

Returns the value of autoMaximize

Returns

setAutoMaximize (autoMaximize)

Sets the value of autoMaximize

Parameters

autoMaximize :  Object

autoRender
bindable bind private pri

Defaults to:

true

getAutoRender

Returns the value of autoRender

Returns

setAutoRender (autoRender)

Sets the value of autoRender

Parameters

autoRender :  Object

autoSize : Boolean
bindable bind

May be set to false for improved layout performance if auto-sizing is not required.

Some versions of Safari, both desktop and mobile, have very slow performance if the application has deeply nested containers due to the following WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=150445

Applications that experience performance issues in the affected versions of Safari may need to turn off autoSizing globally for all Container instances by placing the following override in the application's "overrides" directory:

Ext.define('MyApp.overrides.Container', {
    override: 'Ext.Container',
    config: {
        autoSize: false
    }
});

Once auto-sizing support has turned off by default, it can be selectively turned back on only on those container instances that explicitly need auto-sizing behavior by setting autoSize to true.

This option can also be used to allow items to be sized in percentage units as a workaround for the following browser bug: https://bugs.webkit.org/show_bug.cgi?id=137730

To illustrate, the following example should render a 200px by 200px green box (the container) with a yellow box inside of it (the child item). The child item's height and width are both set to '50%' so the child should render exactly 100px by 100px in size.

All browsers except for Safari render the previous example correctly, but Safari does not assign a height to the component. To make percentage-sized items work in Safari, simply set autoSize to false on the container.

Since the underlying implementation works by absolutely positioning the container's body element, this option can only be used when the container is not "shrink wrapping" the content in either direction. When autoSize is set to false, shrink wrapped dimension(s) will collapse to 0.

Defaults to:

true

getAutoSize : Boolean

Returns the value of autoSize

Returns

Boolean

setAutoSize (autoSize)

Sets the value of autoSize

Parameters

autoSize :  Boolean

axisLock : Boolean
bindable bind

If true, then, when showBy or alignTo fallback on constraint violation only takes place along the major align axis.

That is, if alignment "l-r" is being used, and axisLock: true is used, then if constraints fail, only fallback to "r-l" is considered.

Defaults to:

null

getAxisLock : Boolean

Returns the value of axisLock

Returns

Boolean

setAxisLock (axisLock)

Sets the value of axisLock

Parameters

axisLock :  Boolean

bind : Object / String
bindable bind

Setting this config option adds or removes data bindings for other configs. For example, to bind the title config:

 var panel = Ext.create({
     xtype: 'panel',
     bind: {
         title: 'Hello {user.name}'
     }
 });

To dynamically add bindings:

 panel.setBind({
     title: 'Greetings {user.name}!'
 });

To remove bindings:

 panel.setBind({
     title: null
 });

The bind expressions are presented to Ext.app.ViewModel#bind. The ViewModel instance is determined by lookupViewModel.

Note: If bind is passed as a string, it will use the Ext.Component#property-defaultBindProperty for the binding.

Defaults to:

null

getBind : Object / String

Returns the value of bind

Returns

Object / String

setBind (bind)

Sets the value of bind

Parameters

bind :  Object / String

bodyCls : String / String[]
bindable bind

The CSS class to add to this container's body element.

Defaults to:

null

Available since: 7.0

getBodyCls : String / String[]

Returns the value of bodyCls

Returns

String / String[]

setBodyCls (bodyCls)

Sets the value of bodyCls

Parameters

bodyCls :  String / String[]

border : Boolean
bindable bind

Enables or disables bordering on this component. The following values are accepted:

  • null or `true (default): Do nothing and allow the border to be specified by the theme.
  • false: suppress the default border provided by the theme.

Please note that enabling bordering via this config will not add a border-color or border-style CSS property to the component; you provide the border-color and border-style via CSS rule or style configuration (if not already provide by the theme).

Defaults to:

null

getBorder : Boolean

Returns the value of border

Returns

Boolean

setBorder (border)

Sets the value of border

Parameters

border :  Boolean

bottom : Number / String
bindable bind

The absolute bottom position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. Explicitly setting this value will make this Component become 'positioned', which means it will no longer participate in the layout of the Container that it resides in.

Defaults to:

null

getBottom : Number / String

Returns the value of bottom

Returns

Number / String

setBottom (bottom)

Sets the value of bottom

Parameters

bottom :  Number / String

buttonAlign : String

The alignment of any buttons added to this panel. Valid values are 'right', 'left' and 'center' (defaults to 'right' for buttons/fbar, 'left' for other toolbar types).

NOTE: The preferred way to specify toolbars is to use the items config specifying the docked config on the item. Instead of buttonAlign you would add the layout: { pack: 'start' | 'center' | 'end' } option to the docked item config.

Defaults to:

null

Available since: 6.5.0

cardSwitchAnimation : String / Object / Boolean
removed rem

Animation to be used during transitions of cards.

This method has been REMOVED since 2.0.0

centered : Boolean
bindable bind

Configure this as true to have this Component centered within its Container. Setting this value to true will make this Component become 'positioned', which means it will no longer participate in the layout of the Container that it resides in.

Defaults to:

false

getCentered : Boolean

Returns the value of centered

Returns

Boolean

setCentered (centered)

Sets the value of centered

Parameters

centered :  Boolean

cls : String / String[]
bindable bind

The CSS class to add to this widget's element, in addition to the baseCls. In many cases, this property will be specified by the derived widget class. See userCls for adding additional CSS classes to widget instances (such as items in a Container).

Defaults to:

null

getCls : String / String[]

Returns the value of cls

Returns

String / String[]

setCls (cls)

Sets the value of cls

Parameters

cls :  String / String[]

contentEl : Ext.dom.Element / HTMLElement / String
bindable bind

The configured element will automatically be added as the content of this component. When you pass a string, we expect it to be an element id. If the content element is hidden, we will automatically show it.

Defaults to:

null

getContentEl : Ext.dom.Element / HTMLElement / String

Returns the value of contentEl

Returns

Ext.dom.Element / HTMLElement / String

setContentEl (contentEl)

Sets the value of contentEl

Parameters

contentEl :  Ext.dom.Element / HTMLElement / String

control : Object
bindable bind

Enables you to easily control Components inside this Container by listening to their events and taking some action. For example, if we had a container with a nested Disable button, and we wanted to hide the Container when the Disable button is tapped, we could do this:

We used a Ext.ComponentQuery selector to listen to the tap event on any Button anywhere inside the Container that has the text 'Disable'. Whenever a Component matching that selector fires the tap event our hideMe function is called. hideMe is called with scope: this (e.g. this is the Container instance).

Defaults to:

null

getControl : Object

Returns the value of control

Returns

Object

setControl (control)

Sets the value of control

Parameters

control :  Object

controller : String / Object / Ext.app.ViewController
bindable bind

A string alias, a configuration object or an instance of a ViewController for this container. Sample usage:

Ext.define('MyApp.UserController', {
    alias: 'controller.user'
});

Ext.define('UserContainer', {
    extend: 'Ext.container.container',
    controller: 'user'
});
// Or
Ext.define('UserContainer', {
    extend: 'Ext.container.container',
    controller: {
        type: 'user',
        someConfig: true
    }
});

// Can also instance at runtime
var ctrl = new MyApp.UserController();
var view = new UserContainer({
    controller: ctrl
});

Defaults to:

null

getController Ext.app.ViewController

Returns the Ext.app.ViewController instance associated with this component via the controller config or setController method.

Returns

:Ext.app.ViewController

Returns this component's ViewController or null if one was not configured

setController (controller)

Sets the value of controller

Parameters

controller :  String / Object / Ext.app.ViewController

data : Object
bindable bind

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

Note: Data will be appended to any existing data.

Defaults to:

null

getData : Object

Returns the value of data

Returns

Object

setData (data)

Sets the value of data

Parameters

data :  Object

defaultFocus : String
bindable bind

Specifies a child Component to receive focus when this Container's method-focus method is called. Should be a valid Ext.ComponentQuery selector.

Defaults to:

null

getDefaultFocus : String

Returns the value of defaultFocus

Returns

String

setDefaultFocus (defaultFocus)

Sets the value of defaultFocus

Parameters

defaultFocus :  String

defaultListenerScope : Boolean
bindable bind

If true, this component will be the default scope (this pointer) for events specified with string names so that the scope can be dynamically resolved. The component will automatically become the defaultListenerScope if a controller is specified.

See the introductory docs for Ext.container.Container for some sample usages.

NOTE: This value can only be reliably set at construction time. Setting it after that time may not correctly rewire all of the potentially effected listeners.

Defaults to:

false

getDefaultListenerScope : Boolean

Returns the value of defaultListenerScope

Returns

Boolean

setDefaultListenerScope (defaultListenerScope)

Sets the value of defaultListenerScope

Parameters

defaultListenerScope :  Boolean

defaults : Object
bindable bind

A set of default configurations to apply to all child Components in this Container. It's often useful to specify defaults when creating more than one items with similar configurations. For example here we can specify that each child is a panel and avoid repeating the xtype declaration for each one:

Defaults to:

null

getDefaults : Object

Returns the value of defaults

Returns

Object

setDefaults (defaults)

Sets the value of defaults

Parameters

defaults :  Object

defaultType : String
bindable bind

The default Ext.Component of child Components to create in this Container when a child item is specified as a raw configuration object, rather than as an instantiated Component.

Defaults to:

container

getDefaultType : String

Returns the value of defaultType

Returns

String

setDefaultType (defaultType)

Sets the value of defaultType

Parameters

defaultType :  String

disabled : Boolean
bindable bind

Whether or not this component is disabled

Defaults to:

null

getDisabled : Boolean

Returns the value of disabled

Returns

Boolean

setDisabled (disabled)

Sets the value of disabled

Parameters

disabled :  Boolean

displayed : Boolean
bindable bind

Set to true to call show and false to call hide. Unlike the hidden config, changing this config will potentially involve animations to show or hide the component.

Defaults to:

null

Available since: 6.5.0

getDisplayed : Boolean

Returns the value of displayed

Returns

Boolean

setDisplayed (displayed)

Sets the value of displayed

Parameters

displayed :  Boolean

docked : String
bindable bind

The dock position of this component in its container. Can be left, top, right or bottom.

Notes

You must use a HTML5 doctype for docked bottom to work. To do this, simply add the following code to the HTML file:

<!doctype html>

So your index.html file should look a little like this:

<!doctype html>
<html>
    <head>
        <title>MY application title</title>
        ...

Defaults to:

null

getDocked : String

Returns the value of docked

Returns

String

setDocked (docked)

Sets the value of docked

Parameters

docked :  String

draggable : Boolean / Object / Ext.drag.Source
bindable bind

Set to true to allow this component to be dragged. This can also be the config object for the Ext.drag.Source that will manage the drag.

Defaults to:

null

getDraggable : Boolean / Object / Ext.drag.Source

Returns the value of draggable

Returns

Boolean / Object / Ext.drag.Source

setDraggable (draggable)

Sets the value of draggable

Parameters

draggable :  Boolean / Object / Ext.drag.Source

enterAnimation : String / Mixed
deprecated dep bindable bind

Animation effect to apply when the Component is being shown. Typically you want to use an inbound animation type such as 'fadeIn' or 'slideIn'.

Defaults to:

null

Deprecated since version 2.0.0
Please use showAnimation instead.

getEnterAnimation : String / Mixed

Returns the value of enterAnimation

Returns

String / Mixed

setEnterAnimation (enterAnimation)

Sets the value of enterAnimation

Parameters

enterAnimation :  String / Mixed

exitAnimation : String / Mixed
deprecated dep bindable bind

Animation effect to apply when the Component is being hidden.

Defaults to:

null

Deprecated since version 2.0.0
Please use hideAnimation instead. Typically you want to use an outbound animation type such as 'fadeOut' or 'slideOut'.

getExitAnimation : String / Mixed

Returns the value of exitAnimation

Returns

String / Mixed

setExitAnimation (exitAnimation)

Sets the value of exitAnimation

Parameters

exitAnimation :  String / Mixed

focusableContainer : Boolean

Enable or disable navigation with arrow keys for this FocusableContainer. This option may be useful with nested FocusableContainers, when only the root container should handle keyboard events.

Defaults to:

false

focusCls : String

CSS class that will be added to focused component's focusClsEl, and removed when component blurs.

Defaults to:

'x-focused'

fullscreen : Boolean

Force the component to take up 100% width and height available, by adding it to Ext.Viewport.

height
bindable bind private pri

Defaults to:

'100%'

getHeight

Returns the value of height

Returns

setHeight (height)

Sets the value of height

Parameters

height :  Object

hidden : Boolean
bindable bind

Whether or not this Component is hidden (its CSS display property is set to none).

Defaults to true for floated Components.

Defaults to:

null

getHidden : Boolean

Returns the value of hidden

Returns

Boolean

setHidden (hidden)

Sets the value of hidden

Parameters

hidden :  Boolean

hideAnimation : String / Mixed
bindable bind

Animation effect to apply when the Component is being hidden. Typically you want to use an outbound animation type such as 'fadeOut' or 'slideOut'. For more animations, check the Ext.fx.Animation#type config.

Defaults to:

null

getHideAnimation : String / Mixed

Returns the value of hideAnimation

Returns

String / Mixed

setHideAnimation (hideAnimation)

Sets the value of hideAnimation

Parameters

hideAnimation :  String / Mixed

hideOnMaskTap : Boolean
bindable bind

When using a modal Component, setting this to true will hide the modal mask and the Container when the mask is tapped on.

Defaults to:

null

getHideOnMaskTap : Boolean

Returns the value of hideOnMaskTap

Returns

Boolean

setHideOnMaskTap (hideOnMaskTap)

Sets the value of hideOnMaskTap

Parameters

hideOnMaskTap :  Boolean

html : String / Ext.dom.Element / HTMLElement
bindable bind

Optional HTML content to render inside this Component, or a reference to an existing element on the page.

Defaults to:

null

getHtml : String / Ext.dom.Element / HTMLElement

Returns the value of html

Returns

String / Ext.dom.Element / HTMLElement

setHtml (html)

Sets the value of html

Parameters

html :  String / Ext.dom.Element / HTMLElement

inactiveChildTabIndex : Number

DOM tabIndex attribute to set on inactive Focusable children of this container when using the "Roaming tabindex" technique. This value rarely needs to be changed from its default.

Defaults to:

-1

innerCls : String
bindable bind

A string to add to the immediate parent element of the inner items of this container. That is, items that are not docked, positioned or floated. In some containers, positioned items may be in this same element.

Defaults to:

null

Available since: 6.5.0

getInnerCls : String

Returns the value of innerCls

Returns

String

setInnerCls (innerCls)

Sets the value of innerCls

Parameters

innerCls :  String

items : Array / Object
bindable bind

The child items to add to this Container. This is usually an array of Component configurations or instances, for example:

This may also be specified as an object, the property names of which are itemIds, and the property values are child Component config objects, for example:

Defaults to:

null

getItems : Array / Object

Returns the value of items

Returns

Array / Object

setItems (items)

Sets the value of items

Parameters

items :  Array / Object

keyMap : Object
bindable bind

An object containing handlers for keyboard events. The property names of this object are the key name and any modifiers. The values of the properties are the descriptors of how to handle each event.

The handler descriptor can be simply the handler function(either the literal function or the method name), or it can be an object with these properties:

  • handler: The function or its name to call to handle the event.
  • scope: The this pointer context (can be "this" or "controller").
  • event: An optional override of the key event to which to listen.

Important: Calls to setKeyMap do not replace the entire keyMap but instead update the provided mappings. That is, unless null is passed as the value of the keyMap which will clear the keyMap of all entries.

Defaults to:

null

Properties

scope : String

The default scope to apply to key handlers which do not specify a scope. This is processed the same way as the scope of cfg-listeners. It defaults to the "controller", but using 'this' means that an instance method will be used.

getKeyMap : Object

Returns the value of keyMap

Returns

Object

setKeyMap (keyMap)

Sets the value of keyMap

Parameters

keyMap :  Object

keyMapEnabled : Boolean
bindable bind

Enables or disables processing keys in the keyMap. This value starts as null and if it is null when initKeyMap is called, it will automatically be set to true. Since initKeyMap is called by Ext.Component at the proper time, this is not something application code normally handles.

Defaults to:

null

getKeyMapEnabled : Boolean

Returns the value of keyMapEnabled

Returns

Boolean

setKeyMapEnabled (keyMapEnabled)

Sets the value of keyMapEnabled

Parameters

keyMapEnabled :  Boolean

keyMapTarget : String
protected pro

The name of the member that should be used to listen for keydown/keypress events. This is intended to be controlled at the class level not per instance.

Defaults to:

'el'

layout : Object / String
bindable bind

Configuration for this Container's layout. Example:

Ext.create('Ext.Container', {
    layout: {
        type: 'hbox',
        align: 'middle'
    },
    items: [
        {
            xtype: 'panel',
            flex: 1,
            style: 'background-color: red;'
        },
        {
            xtype: 'panel',
            flex: 2,
            style: 'background-color: green'
        }
    ]
});

Defaults to:

'card'

getLayout : Object / String

Returns the value of layout

Returns

Object / String

setLayout (layout)

Sets the value of layout

Parameters

layout :  Object / String

left : Number / String
bindable bind

The absolute left position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. Explicitly setting this value will make this Component become 'positioned', which means it will no longer participate in the layout of the Container that it resides in.

Defaults to:

null

getLeft : Number / String

Returns the value of left

Returns

Number / String

setLeft (left)

Sets the value of left

Parameters

left :  Number / String

listeners : Object
bindable bind

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 Ext JS Ext.Component

While some Ext JS 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 itemclick 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'); }
        }
    }
});

setListeners ( listeners )

An alias for addListener. In versions prior to 5.1, listeners had a generated setter which could be called to add listeners. In 5.1 the listeners config is not processed using the config system and has no generated setter, so this method is provided for backward compatibility. The preferred way of adding listeners is to use the on method.

Parameters

listeners :  Object

The listeners

manageBorders : Boolean
protected pro

true to enable border management of docked items. When enabled, borders of docked items will collapse where they meet to avoid duplicated borders.

Defaults to:

false

margin : Number / String
bindable bind

The margin to use on this Component. Can be specified as a number (in which case all edges get the same margin) or a CSS string like '5 10 10 10'

Defaults to:

null

getMargin : Number / String

Returns the value of margin

Returns

Number / String

setMargin (margin)

Sets the value of margin

Parameters

margin :  Number / String

masked : Boolean / String / Object / Ext.Mask / Ext.LoadMask
bindable bind

A configuration to allow you to mask this container.

If the value is a string, it will be used as the message config for an Ext.LoadMask.

For more precise control over the mask, you can optionally pass an object block with and xtype of loadmask, and an optional message value to display a loading mask. Please refer to the Ext.LoadMask component to see other configurations.

Alternatively, you can just call the setter at any time with true/false to show/hide the mask:

setMasked(true); //show the mask
setMasked(false); //hides the mask

There are also two convenient methods, method-mask and unmask, to allow you to mask and unmask this container at any time.

Remember, the Ext.Viewport is always a container, so if you want to mask your whole application at anytime, can call:

Ext.Viewport.setMasked({
    xtype: 'loadmask',
    message: 'Hello'
});

Defaults to:

null

getMasked : Boolean / String / Object / Ext.Mask / Ext.LoadMask

Returns the value of masked

Returns

Boolean / String / Object / Ext.Mask / Ext.LoadMask

setMasked (masked)

Sets the value of masked

Parameters

masked :  Boolean / String / Object / Ext.Mask / Ext.LoadMask

maxHeight : Number / String
bindable bind

The maximum height of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. If set to auto, it will set the width to null meaning it will have its own natural size. Note that this config will not apply if the Component is 'positioned' (absolutely positioned or centered)

Defaults to:

null

getMaxHeight : Number / String

Returns the value of maxHeight

Returns

Number / String

setMaxHeight (maxHeight)

Sets the value of maxHeight

Parameters

maxHeight :  Number / String

maxWidth : Number / String
bindable bind

The maximum width of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. If set to auto, it will set the width to null meaning it will have its own natural size. Note that this config will not apply if the Component is 'positioned' (absolutely positioned or centered)

Defaults to:

null

getMaxWidth : Number / String

Returns the value of maxWidth

Returns

Number / String

setMaxWidth (maxWidth)

Sets the value of maxWidth

Parameters

maxWidth :  Number / String

menus
bindable bind private pri

An object of all the menus on this viewport.

Defaults to:

{}

getMenus

Returns the value of menus

Returns

setMenus (menus)

Sets the value of menus

Parameters

menus :  Object

minButtonWidth : Number

Minimum width of all footer toolbar buttons in pixels. If set, this will be used as the default value for the Ext.Button#minWidth config of each Button added to the footer toolbar via the fbar or buttons configurations. It will be ignored for buttons that have a minWidth configured some other way, e.g. in their own config object or via the defaults of their parent container.

Defaults to:

null

Available since: 6.5.0

minHeight : Number / String
bindable bind

The minimum height of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. If set to auto, it will set the width to null meaning it will have its own natural size.

Defaults to:

null

getMinHeight : Number / String

Returns the value of minHeight

Returns

Number / String

setMinHeight (minHeight)

Sets the value of minHeight

Parameters

minHeight :  Number / String

minWidth : Number / String
bindable bind

The minimum width of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. If set to auto, it will set the width to null meaning it will have its own natural size.

Defaults to:

null

getMinWidth : Number / String

Returns the value of minWidth

Returns

Number / String

setMinWidth (minWidth)

Sets the value of minWidth

Parameters

minWidth :  Number / String

modal : Boolean
bindable bind

true to make this Component modal. This will create a mask underneath the Component that covers its parent and does not allow the user to interact with any other Components until this Component is dismissed.

Defaults to:

null

getModal : Boolean

Returns the value of modal

Returns

Boolean

setModal (modal)

Sets the value of modal

Parameters

modal :  Boolean

modelValidation : Boolean

This config enables binding to your Ext.data.Model#validators. This is only processed by form fields (e.g., Ext.field.*) at present, however, this setting is inherited and so can be set on a parent container.

When set to true by a component (or by an ancestor container), the validators of for any {@Ext.data.Model record} fields will be used wherever the value is bound to such data fields.

While this config can be set arbitrarily high in the component hierarchy, doing so can create a lot overhead if most of your form fields do not actually rely on validators in your data model.

Using this setting for a form that is bound to an Ext.data.Model might look like this:

 {
     xtype: 'panel',
     modelValidation: true,
     items: [{
         xtype: 'textfield',
         bind: '{theUser.firstName}'
     },{
         xtype: 'textfield',
         bind: '{theUser.lastName}'
     },{
         xtype: 'textfield',
         bind: '{theUser.phoneNumber}'
     },{
         xtype: 'textfield',
         bind: '{theUser.email}'
     }]
 }

Defaults to:

null

Available since: 6.5.0

name : String

Name for the widget to be used with Ext.Container#lookupName et al.

Defaults to:

null

nameable : Boolean

Set to true for this component's name property to be tracked by its containing nameHolder.

Defaults to:

false

nameHolder : Boolean

When true child components are tracked by their name property and can be retrieved using the lookupName method.

Defaults to:

false

orientation
bindable bind private pri

Defaults to:

null

getOrientation

Returns the value of orientation

Returns

setOrientation (orientation)

Sets the value of orientation

Parameters

orientation :  Object

padding : Number / String
bindable bind

The padding to use on this Component. Can be specified as a number (in which case all edges get the same padding) or a CSS string like '5 10 10 10'

Defaults to:

null

getPadding : Number / String

Returns the value of padding

Returns

Number / String

setPadding (padding)

Sets the value of padding

Parameters

padding :  Number / String

plugins : Array / Ext.enums.Plugin / Object / Ext.plugin.Abstract
bindable bind

This config describes one or more plugin config objects used to create plugin instances for this component.

Plugins are a way to bundle and reuse custom functionality. Plugins should extend Ext.plugin.Abstract but technically the only requirement for a valid plugin is that it contain an init method that accepts a reference to its owner. Once a plugin is created, the owner will call the init method, passing a reference to itself. Each plugin can then call methods or respond to events on its owner as needed to provide its functionality.

This config's value can take several different forms.

The value can be a single string with the plugin's Ext.enums.Plugin:

 var list = Ext.create({
     xtype: 'list',
     itemTpl: '<div class="item">{title}</div>',
     store: 'Items',

     plugins: 'listpaging'
 });

In the above examples, the string "listpaging" is the type alias for listpaging. The full alias includes the "plugin." prefix (i.e., 'plugin.listpaging').

The preferred form for multiple plugins or to configure plugins is the keyed-object form (new in version 6.5):

 var list = Ext.create({
     xtype: 'list',
     itemTpl: '<div class="item">{title}</div>',
     store: 'Items',

     plugins: {
         pullrefresh: true,
         listpaging: {
             autoPaging: true,
             weight: 10
         }
     }
 });

The object keys are the id's as well as the default type alias. This form allows the value of the plugins to be merged from base class to derived class and finally with the instance configuration. This allows classes to define a set of plugins that derived classes or instantiators can further configure or disable. This merge behavior is a feature of the config.

The plugins config can also be an array of plugin aliases (arrays are not merged so this form does not respect plugins defined by the class author):

 var list = Ext.create({
     xtype: 'list',
     itemTpl: '<div class="item">{title}</div>',
     store: 'Items',

     plugins: ['listpaging', 'pullrefresh']
 });

An array can also contain elements that are config objects with a type property holding the type alias:

 var list = Ext.create({
     xtype: 'list',
     itemTpl: '<div class="item">{title}</div>',
     store: 'Items',

     plugins: ['pullrefresh', {
         type: 'listpaging',
         autoPaging: true
     }]
 });

Defaults to:

null

setPlugins (plugins)

Sets the value of plugins

Parameters

plugins :  Array / Ext.enums.Plugin / Object / Ext.plugin.Abstract

preventZooming : Boolean
bindable bind

true to attempt to stop zooming when you double tap on the screen on mobile devices, typically HTC devices with HTC Sense UI.

Defaults to:

false

getPreventZooming : Boolean

Returns the value of preventZooming

Returns

Boolean

setPreventZooming (preventZooming)

Sets the value of preventZooming

Parameters

preventZooming :  Boolean

publishes : String / String[] / Object
bindable bind

One or more names of config properties that this component should publish to its ViewModel. Generally speaking, only properties defined in a class config block (including ancestor config blocks and mixins) are eligible for publishing to the viewModel. Some components override this and publish their most useful configs by default.

Note: We'll discuss publishing properties not found in the config block below.

Values determined to be invalid by component (often form fields and model validations) will not be published to the ViewModel.

This config uses the cfg-reference to determine the name of the data object to place in the ViewModel. If reference is not set then this config is ignored.

By using this config and cfg-reference you can bind configs between components. For example:

 ...
     items: [{
         xtype: 'textfield',
         reference: 'somefield',  // component's name in the ViewModel
         publishes: 'value' // value is not published by default
     },{
         ...
     },{
         xtype: 'displayfield',
         bind: 'You have entered "{somefield.value}"'
     }]
 ...

Classes must provide this config as an Object:

 Ext.define('App.foo.Bar', {
     publishes: {
         foo: true,
         bar: true
     }
 });

This is required for the config system to properly merge values from derived classes.

For instances this value can be specified as a value as show above or an array or object as follows:

 {
     xtype: 'textfield',
     reference: 'somefield',
     publishes: [
         'value',
         'rawValue',
         'dirty'
     ]
 }

 // This achieves the same result as the above array form.
 {
     xtype: 'textfield',
     reference: 'somefield',
     publishes: {
         value: true,
         rawValue: true,
         dirty: true
     }
 }

In some cases, users may want to publish a property to the viewModel that is not found in a class config block. In these situations, you may utilize publishState if the property has a setter method. Let's use setFieldLabel as an example:

  setFieldLabel: function(fieldLabel) {
      this.callParent(arguments);
      this.publishState('fieldLabel', fieldLabel);
  }

With the above chunk of code, fieldLabel may now be published to the viewModel.

Defaults to:

null

Available since: 5.0.0

getPublishes : String / String[] / Object

Returns the value of publishes

Returns

String / String[] / Object

setPublishes (publishes)

Sets the value of publishes

Parameters

publishes :  String / String[] / Object

record : Ext.data.Model
bindable bind

A model instance which updates the Component's html based on it's tpl. Similar to the data configuration, but tied to to a record to make allow dynamic updates. This must be a model instance and not a configuration of one.

Defaults to:

null

getRecord : Ext.data.Model

Returns the value of record

Returns

Ext.data.Model

setRecord (record)

Sets the value of record

Parameters

record :  Ext.data.Model

reference : String

Specifies a name for this component inside its component hierarchy. This name must be unique within its view or its ViewController. See the documentation in Ext.container.Container for more information about references.

Note: Valid identifiers start with a letter or underscore and are followed by zero or more additional letters, underscores or digits. References are case sensitive.

Defaults to:

null

referenceHolder : Boolean

If true, this container will be marked as being a point in the hierarchy where references to items with a specified reference config will be held. The container will automatically become a referenceHolder if a controller is specified.

See the introductory docs for Ext.container.Container for more information about references & reference holders.

Defaults to:

false

renderTo : Ext.dom.Element

Optional element to render this Component to. Not required if this component is an item of a Container of a Container.

Defaults to:

null

resetFocusPosition : Boolean

When true, FocusableContainer will reset last focused position whenever focus leaves the container. Subsequent tabbing into the container will always focus the first eligible child item.

When false, subsequent tabbing into the container will focus the child item that was last focused before.

Defaults to:

false

right : Number / String
bindable bind

The absolute right position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. Explicitly setting this value will make this Component become 'positioned', which means it will no longer participate in the layout of the Container that it resides in.

Defaults to:

null

getRight : Number / String

Returns the value of right

Returns

Number / String

setRight (right)

Sets the value of right

Parameters

right :  Number / String

scrollable : Boolean / String / Object
bindable bind

Configuration options to make this Component scrollable. Acceptable values are:

  • true to enable auto scrolling.
  • false (or null) to disable scrolling - this is the default.
  • x or horizontal to enable horizontal scrolling only
  • y or vertical to enable vertical scrolling only

Also accepts a configuration object for a Ext.scroll.Scroller if if advanced configuration is needed.

The getter for this config returns the Ext.scroll.Scroller instance. You can use the Scroller API to read or manipulate the scroll position:

// scrolls the component to 5 on the x axis and 10 on the y axis
component.getScrollable().scrollTo(5, 10);

Defaults to:

null

getScrollable : Boolean / String / Object

Returns the value of scrollable

Returns

Boolean / String / Object

setScrollable (scrollable)

Sets the value of scrollable

Parameters

scrollable :  Boolean / String / Object

session : Boolean / Object / Ext.data.Session
bindable bind

If provided this creates a new Session instance for this component. If this is a Container, this will then be inherited by all child components.

To create a new session you can specify true:

 Ext.create({
     xtype: 'viewport',
     session: true,

     items: [{
         ...
     }]
 });

Alternatively, a config object can be provided:

 Ext.create({
     xtype: 'viewport',
     session: {
         ...
     },

     items: [{
         ...
     }]
 });

Defaults to:

null

getSession : Boolean / Object / Ext.data.Session

Returns the value of session

Returns

Boolean / Object / Ext.data.Session

setSession (session)

Sets the value of session

Parameters

session :  Boolean / Object / Ext.data.Session

shareableName : Boolean

Set to true to allow this component's name to be shared by other items in the same nameHolder. Such items will be returned in an array from lookupName.

Defaults to:

false

showAnimation : String / Mixed
bindable bind

Animation effect to apply when the Component is being shown. Typically you want to use an inbound animation type such as 'fadeIn' or 'slideIn'. For more animations, check the Ext.fx.Animation#type config.

Defaults to:

null

getShowAnimation : String / Mixed

Returns the value of showAnimation

Returns

String / Mixed

setShowAnimation (showAnimation)

Sets the value of showAnimation

Parameters

showAnimation :  String / Mixed

stateful : Boolean / Object / String[]
bindable bind

This config specifies the config properties that will be persisted using the Ext.state.Provider. If this config is set to true, the configs specified by statefulDefaults will be assumed.

 stateful: true

Otherwise, this config can be an array of strings of the properties to save:

 stateful: [
     'width',
     'height',
     'collapsed'
 ]

The above is equivalent to:

 stateful: {
     width: true,
     height: true,
     collapsed: true
 }

Note: To be truly stateful, an id or stateId must also be assigned.

A stateful object will save its state when any of these config properties change value.

Defaults to:

false

getStateful : Boolean / Object / String[]

Returns the value of stateful

Returns

Boolean / Object / String[]

setStateful (stateful)

Sets the value of stateful

Parameters

stateful :  Boolean / Object / String[]

statefulDefaults : Object / String[]
bindable bind protected pro

The default set of stateful properties. The form of this config is the same as stateful except this config cannot be a Boolean.

This config is intended for classes to specify so that instances can simply enable statefulness using stateful: true.

Defaults to:

null

getStatefulDefaults : Object / String[]

Returns the value of statefulDefaults

Returns

Object / String[]

setStatefulDefaults (statefulDefaults)

Sets the value of statefulDefaults

Parameters

statefulDefaults :  Object / String[]

stateId : String
bindable bind

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

Defaults to:

null

getStateId : String

Returns the value of stateId

Returns

String

setStateId (stateId)

Sets the value of stateId

Parameters

stateId :  String

style : String / Object
bindable bind

Additional CSS styles that will be rendered into an inline style attribute when the widget is rendered.

You can pass either a string syntax:

style: 'background:red'

Or by using an object:

style: {
    background: 'red'
}

When using the object syntax, you can define CSS Properties by using a string:

style: {
    'border-left': '1px solid red'
}

Although the object syntax is much easier to read, we suggest you to use the string syntax for better performance.

Defaults to:

null

setStyle (style)

Sets the value of style

Parameters

style :  String / Object

swipeThreshold : Number
bindable bind

The minimum distance an edge swipe must traverse in order to trigger showing an edge menu.

Note that reversing an edge swipe gesture back towards the edge aborts showing that side's edge menu.

Defaults to:

30

getSwipeThreshold : Number

Returns the value of swipeThreshold

Returns

Number

setSwipeThreshold (swipeThreshold)

Sets the value of swipeThreshold

Parameters

swipeThreshold :  Number

tabIndex : Number
bindable bind

DOM tabIndex attribute for this component's focusEl.

Defaults to:

null

getTabIndex Number

Return the actual tabIndex for this Focusable.

Returns

:Number

tabIndex attribute value

setTabIndex ( newTabIndex )

Set the tabIndex property for this Focusable. If the focusEl is available, set tabIndex attribute on it, too.

Parameters

newTabIndex :  Number

new tabIndex to set

tooltip : String / Object
bindable bind

The tooltip for this component - can be a string to be used as innerHTML (html tags are accepted) or ToolTip config object.

The default behavior is to use a shared tip instance. The tooltip configuration is registered with the Ext.tip.Manager. To enable this, your application can set the Ext.app.Application#quickTips config, or an instance of the Ext.tip.Manager may be created manually.

To force a unique tooltip instance to be created, specify autoCreate: true on this configuration.

Configuring this with autoHide: false implies autoCreate: true so that the desired persistent behavior can be obtained with other targets still showing the singleton instance.

Defaults to:

null

getTooltip : String / Object

Returns the value of tooltip

Returns

String / Object

setTooltip (tooltip)

Sets the value of tooltip

Parameters

tooltip :  String / Object

top : Number / String
bindable bind

The absolute top position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc. Explicitly setting this value will make this Component become 'positioned', which means it will no longer participate in the layout of the Container that it resides in.

Defaults to:

null

getTop : Number / String

Returns the value of top

Returns

Number / String

setTop (top)

Sets the value of top

Parameters

top :  Number / String

touchAction : Object

Emulates the behavior of the CSS touch-action property in a cross-browser compatible manner.

Keys in this object are touch action names, and values are false to disable a touch action or true to enable it. Accepted keys are:

  • panX
  • panY
  • pinchZoom
  • doubleTapZoom

All touch actions are enabled (true) by default, so it is usually only necessary to specify which touch actions to disable. For example, the following disables only horizontal scrolling and pinch-to-zoom on the component's main element:

touchAction: {
    panX: false,
    pinchZoom: false
}

Touch actions can be specified on reference elements using the reference element name, for example:

// disables horizontal scrolling on the main element, and double-tap-zoom
// on the child element named "body"
touchAction: {
    panY: false
    body: {
        doubleTapZoom: false
    }
}

The primary motivation for setting the touch-action of an element is to prevent the browser's default handling of a gesture such as pinch-to-zoom, or drag-to-scroll, so that the application can implement its own handling of that gesture on the element. Suppose, for example, a component has a custom drag handler on its element and wishes to prevent horizontal scrolling of its container while it is being dragged:

Ext.create('Ext.Widget', {
    touchAction: {
        panX: false
    },
    listeners: {
        drag: function(e) {
            // implement drag logic
        }
    }
});

Defaults to:

null

tpl : String / String[] / Ext.Template / Ext.XTemplate[]
bindable bind

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

Note The data configuration must be set for any content to be shown in the component when using this configuration.

Defaults to:

null

setTpl (tpl)

Sets the value of tpl

Parameters

tpl :  String / String[] / Ext.Template / Ext.XTemplate[]

tplWriteMode : String
bindable bind

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

Valid modes are:

  • append
  • insertAfter
  • insertBefore
  • insertFirst
  • overwrite

Defaults to:

'overwrite'

getTplWriteMode : String

Returns the value of tplWriteMode

Returns

String

setTplWriteMode (tplWriteMode)

Sets the value of tplWriteMode

Parameters

tplWriteMode :  String

twoWayBindable : String / String[] / Object
bindable bind

This object holds a map of config properties that will update their binding as they are modified. For example, value is a key added by form fields. The form of this config is the same as publishes.

This config is defined so that updaters are not created and added for all bound properties since most cannot be modified by the end-user and hence are not appropriate for two-way binding.

Defaults to:

null

getTwoWayBindable : String / String[] / Object

Returns the value of twoWayBindable

Returns

String / String[] / Object

setTwoWayBindable (twoWayBindable)

Sets the value of twoWayBindable

Parameters

twoWayBindable :  String / String[] / Object

ui : String / String[]

The ui or uis to be used on this Component

When a ui is configured, CSS class names are added to the element, created by appending the ui name(s) to each classCls and/or baseCls.

Defaults to:

null

userCls : String / String[]

One or more CSS classes to add to the component's primary element. This config is intended solely for use by the component instantiator (the "user"), not by derived classes.

For example:

 items: [{
     xtype: 'button',
     userCls: 'my-button'
 ...
 }]

Defaults to:

null

userSelectable : Boolean / String / Object
bindable bind

Set to true to allow users to select text within this component.

Can also be any valid value for the CSS3 user-select property.

A value of true implies auto, while false implies none.

May also be an object keyed by child element name.

By default, the user cannot click+drag+select text/elements of the UI. Applications may want to enable user selection for specific DOM elements, such as the bodyElement of a component used as a tab panel. The tab and tab text would not be user selectable in this example, but the content area when the tab is selected would.

 userSelectable: {
     element: true,       // allow the element to be user selectable
     bodyElement: true    // allow the component's body element to be user selectable
 }

Defaults to:

false

Available since: 6.5.1

getUserSelectable : Boolean / String / Object

Returns the value of userSelectable

Returns

Boolean / String / Object

setUserSelectable (userSelectable)

Sets the value of userSelectable

Parameters

userSelectable :  Boolean / String / Object

viewModel : String / Object / Ext.app.ViewModel
bindable bind

The ViewModel is a data provider for this component and its children. The data contained in the ViewModel is typically used by adding bind configs to the components that want present or edit this data.

When set, the ViewModel is created and links to any inherited viewModel instance from an ancestor container as the "parent". The ViewModel hierarchy, once established, only supports creation or destruction of children. The parent of a ViewModel cannot be changed on the fly.

If this is a root-level ViewModel, the data model connection is made to this component's associated Ext.data.Session. This is determined by calling getInheritedSession.

Defaults to:

null

getViewModel : String / Object / Ext.app.ViewModel

Returns the value of viewModel

Returns

String / Object / Ext.app.ViewModel

setViewModel (viewModel)

Sets the value of viewModel

Parameters

viewModel :  String / Object / Ext.app.ViewModel

weight : Number
bindable bind

This value controls this item's order in a weighted Container (see parent).

Lower values gravitate towards the start of the container - the top in vertical layouts, the locale start side in horizontal layouts.

Defaults to:

0

getWeight : Number

Returns the value of weight

Returns

Number

setWeight (weight)

Sets the value of weight

Parameters

weight :  Number

weighted : Boolean

If set to true, then child items may be specified as a object, with each property name specifying an itemId, and the property value being the child item configuration object.

When using this scheme, each child item may contain a weight configuration value which affects its order in this container. Lower weights are towards the start, higher weights towards the end.

Defaults to:

false

width
bindable bind private pri

Defaults to:

'100%'

getWidth

Returns the value of width

Returns

setWidth (width)

Sets the value of width

Parameters

width :  Object

xtype : String

The xtype configuration option can be used to optimize Component creation and rendering. It serves as a shortcut to the full component name. For example, the component Ext.button.Button has an xtype of button.

You can define your own xtype on a custom Ext.Component like so:

Ext.define('PressMeButton', {
    extend: 'Ext.button.Button',
    xtype: 'pressmebutton',
    text: 'Press Me'
});

Any Component can be created implicitly as an object config with an xtype specified, allowing it to be declared and passed into the rendering pipeline without actually being instantiated as an object. Not only is rendering deferred, but the actual creation of the object itself is also deferred, saving memory and resources until they are actually needed. In complex, nested layouts containing many Components, this can make a noticeable improvement in performance.

// Explicit creation of contained Components:
var panel = new Ext.Panel({
   // ...
   items: [
      Ext.create('Ext.button.Button', {
         text: 'OK'
      })
   ]
});

// Implicit creation using xtype:
var panel = new Ext.Panel({
   // ...
   items: [{
      xtype: 'button',
      text: 'OK'
   }]
});

In the first example, the button will always be created immediately during the panel's initialization. With many added Components, this approach could potentially slow the rendering of the page. In the second example, the button will not be created or rendered until the panel is actually displayed in the browser. If the panel is never displayed (for example, if it is a tab that remains hidden) then the button will never be created and will never consume any resources whatsoever.

zIndex : Number
bindable bind

The z-index to give this Component when it is rendered.

Not valid for floated Components. The Z ordering of floated Components is managed by ordering of the DOM elements.

Defaults to:

null

getZIndex : Number

Returns the value of zIndex

Returns

Number

setZIndex (zIndex)

Sets the value of zIndex

Parameters

zIndex :  Number

properties

Instance Properties

$eventOptions
private pri

Matches options property names within a listeners specification object - property names which are never used as event names.

Defaults to:

{
    scope: 1,
    delay: 1,
    buffer: 1,
    onFrame: 1,
    single: 1,
    args: 1,
    destroyable: 1,
    priority: 1,
    order: 1
}

$vetoClearingPrototypeOnDestroy
private pri

We don't want the base destructor to clear the prototype because our destroyObservable handler must be called the very last. It will take care of the prototype after completing Observable destruction sequence.

Defaults to:

true

activeAnimation
private pri

Defaults to:

null

ariaEl : String
readonly ro private pri

The name of the Component property that holds a reference to the Element that serves as that Component's ARIA element. This property will be replaced with the actual Element reference after rendering.

Most of the simple Components will have their main element as ariaEl.

Defaults to:

'el'

Available since: 6.0.0

ariaRenderAttributes : Object
private pri

Instance specific ARIA attributes to render into Component's ariaEl. This object is only used during rendering, and is discarded afterwards.

ariaRole : String
readonly ro

ARIA role for this Component, defaults to no role. With no role, no other ARIA attributes are set.

autoGenId : Boolean
private pri

true indicates an id was auto-generated rather than provided by configuration.

Defaults to:

false

Available since: 6.7.0

classCls

Defaults to:

Ext.baseCSSPrefix + 'component'

containsFocus : Boolean
readonly ro

true if this currently focused element is within this Component's or Container's hierarchy. This property is set separately from hasFocus, and can be true when hasFocus is false.

Examples:

  • Text field with input element focused would be: focusable: true, hasFocus: true, containsFocus: true

  • Date field with drop-down picker currently focused would be: focusable: true, hasFocus: false, containsFocus: true

  • Form Panel with a child input field currently focused would be: focusable: false, hasFocus: false, containsFocus: true

See also hasFocus.

Defaults to:

false

defaultBindProperty : String

This property is used to determine the property of a bind config that is just the value. For example, if defaultBindProperty="value", then this shorthand bind config:

 bind: '{name}'

Is equivalent to this object form:

 bind: {
     value: '{name}'
 }

The defaultBindProperty is set to "value" for form fields and to "store" for grids and trees.

Defaults to:

'html'

dockPositions
readonly ro private pri

Defaults to:

{
    top: true,
    right: true,
    bottom: true,
    left: true
}

eventsSuspended
private pri

Initial suspended call count. Incremented when suspendEvents is called, decremented when resumeEvents is called.

Defaults to:

0

factoryConfig : Object

If this property is specified by the target class of this mixin its properties are used to configure the created Ext.Factory.

floatingCls

Defaults to:

Ext.baseCSSPrefix + 'floating'

focusable : Boolean
readonly ro

true for keyboard interactive Components or Widgets, false otherwise. For Containers, this property reflects interactiveness of the Container itself, not its children. See isFocusable.

Note: It is not enough to set this property to true to make a component keyboard interactive. You also need to make sure that the component's focusEl is reachable via Tab key (tabbable). See also tabIndex.

Defaults to:

false

focusableContainerEl : String / Ext.dom.Element

The name of the element that FocusableContainer should bind its keyboard handler to. Similar to ariaEl, this name is resolved to the Ext.dom.Element instance after rendering.

Defaults to:

"el"

focusClsEl : Ext.dom.Element

The element that will have the focusCls applied when component's focusEl is focused.

focusEl : Ext.dom.Element

The element that will be focused when focus method is called on this component. Usually this is the same element that receives focus via mouse clicks, taps, and pressing Tab key.

Defaults to:

'el'

fullscreenItemCls
private pri

Defaults to:

Ext.baseCSSPrefix + 'fullscreen'

hasFocus : Boolean
readonly ro

true if this component's focusEl is focused. See also containsFocus.

Defaults to:

false

hasListeners : Object
readonly ro

This object holds a key for any event that has a listener. The listener may be set directly on the instance, or on its class or a super class (via observe) or on the MVC EventBus. The values of this object are truthy (a non-zero number) and falsy (0 or undefined). They do not represent an exact count of listeners. The value for an event is truthy if the event must be fired and is falsy if there is no need to fire the event.

The intended use of this property is to avoid the expense of fireEvent calls when there are no listeners. This can be particularly helpful when one would otherwise have to call fireEvent hundreds or thousands of times. It is used like this:

 if (this.hasListeners.foo) {
     this.fireEvent('foo', this, arg1);
 }

initFocusable
protected pro

Template method to do any Focusable related initialization that does not involve event listeners creation.

Defaults to:

Ext.emptyFn

isComponent
private pri

Defaults to:

true

isContainer : Boolean

true in this class to identify an object as an instantiated Container, or subclass thereof.

Defaults to:

true

isObservable : Boolean

true in this class to identify an object as an instantiated Observable, or subclass thereof.

Defaults to:

true

isReady : Boolean

true if the DOM is ready.

Defaults to:

false

lastKeyMapEvent : Ext.event.Event

The last key event processed is cached on the component for use in subsequent event handlers.

Available since: 6.6.0

positioned
private pri

Defaults to:

false

rendered : Boolean
readonly ro

The rendered flag is set when a widget is inserted into the document for the first time.

Note that this is a one-way operation. The first time a widget is inserted into the document, this flag is set, and it is never unset.

userSelectableClsMap
private pri

Defaults to:

{
    "true": Ext.baseCSSPrefix + 'user-selectable-auto',
    "false": Ext.baseCSSPrefix + 'user-selectable-none',
    all: Ext.baseCSSPrefix + 'user-selectable-all',
    auto: Ext.baseCSSPrefix + 'user-selectable-auto',
    text: Ext.baseCSSPrefix + 'user-selectable-text',
    none: Ext.baseCSSPrefix + 'user-selectable-none'
}

validRefRe : RegExp
private pri

Regular expression used for validating reference values.

Defaults to:

/^[a-z_][a-z0-9_]*$/i

methods

Instance Methods

_addDeclaredListeners ( listeners ) : Boolean
private pri

Adds declarative listeners as nested arrays of listener objects.

Parameters

listeners :  Array

Returns

:Boolean

true if any listeners were added

_fixReference
private pri

Sets up a reference on our current reference holder.

_flushStateful
private pri

This method is called before destroy to ensure that this instance's stateful properties are saved to persistent storage. Since this object is about to be destroyed, this cannot be delayed.

_getStateId String
private pri

Returns the state id for this object.

Returns

:String

The stateId or the configured id.

activatePlugin ( type ) : Ext.plugin.Abstract
private pri

Creates a particular plugin type if defined in the plugins configuration.

Available since: 6.2.0

Parameters

type :  String

The type of the plugin.

Returns

:Ext.plugin.Abstract

The plugin that was created.

add ( newItems ) : Ext.Component/Ext.Component[]

Adds one or more Components to this Container. Example:

var myPanel = Ext.create({
    xtype: 'panel',
    html : 'This will be added to a Container'
});

var items = myContainer.add([myPanel]); // Array returned
var item  = myContainer.add(myPanel);   // One item is returned

Parameters

newItems :  Object/Object[]/Ext.Component/Ext.Component[]

The new item(s) to add to the Container. Note that if an array of items to add was passed in, an array of added items will be returned as well even if there was only one item.

Returns

:Ext.Component/Ext.Component[]

The Component(s) that were added.

addDelegatedListener ( eventName, fn, scope, options, order, caller, manager )
private pri

Adds a listeners with the "delegate" event option. Users should not invoke this method directly. Use the "delegate" event option of addListener instead.

Parameters

eventName :  Object

fn :  Object

scope :  Object

options :  Object

order :  Object

caller :  Object

manager :  Object

addListener ( eventName, [fn], [scope], [options], [order] ) : Object
chainable ch

The on method is shorthand for addListener.

Appends an event handler to this object. For example:

myGridPanel.on("itemclick", this.onItemClick, this);

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,
    select: this.onSelect,
    viewready: this.onViewReady,
    scope: this // Important. Ensure "this" is correct during handler execution
});

One can also specify options for each event handler separately:

myGridPanel.on({
    cellclick: {fn: this.onCellClick, scope: this, single: true},
    viewready: {fn: panel.onViewReady, scope: panel}
});

Names of methods in a specified scope may also be used:

myGridPanel.on({
    cellclick: {fn: 'onCellClick', scope: this, single: true},
    viewready: {fn: 'onViewReady', scope: panel}
});

Parameters

eventName :  String/Object

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

fn :  Function/String (optional)

The method the event invokes or the name of the method within the specified scope. Will be called with arguments given to Ext.util.Observable#fireEvent plus the options parameter described below.

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.

Note: The options object will also be passed as the last argument to every event handler.

This object 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.

onFrame :  Number

Causes the handler to be scheduled to run at the next animation frame event. If the event fires again before that time, the handler is not rescheduled - the handler will only be called once when the next animation frame is fired, with the last set of arguments passed.

target :  Ext.util.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 Ext.Component. The name of a Component property which references an Ext.dom.Element to add a listener to.

This option is useful during Component construction to add DOM event listeners to elements of Ext.Component which will exist only after the Component is rendered.

For example, to add a click listener to a Panel's body:

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

In order to remove listeners attached using the element, you'll need to reference the element itself as seen below.

 panel.body.un(...)

delegate :  String (optional)

A simple selector to filter the event target or look for a descendant of the target.

The "delegate" option is only available on Ext.dom.Element instances (or when attaching a listener to a Ext.dom.Element via a Component using the element option).

See the delegate example below.

capture :  Boolean (optional)

When set to true, the listener is fired in the capture phase of the event propagation sequence, instead of the default bubble phase.

The capture option is only available on Ext.dom.Element instances (or when attaching a listener to a Ext.dom.Element via a Component using the element option).

stopPropagation :  Boolean (optional)

This option is only valid for listeners bound to Ext.dom.Element. true to call stopPropagation on the event object before firing the handler.

preventDefault :  Boolean (optional)

This option is only valid for listeners bound to Ext.dom.Element. true to call preventDefault on the event object before firing the handler.

stopEvent :  Boolean (optional)

This option is only valid for listeners bound to Ext.dom.Element. true to call stopEvent on the event object before firing the handler.

args :  Array (optional)

Optional set of arguments to pass to the handler function before the actual fired event arguments. For example, if args is set to ['foo', 42], the event handler function will be called with an arguments list like this:

 handler('foo', 42, <actual event arguments>...);

destroyable :  Boolean (optional)

When specified as true, the function returns a destroyable object. An object which implements the destroy method which removes all listeners added in this call. This syntax can be a helpful shortcut to using un; particularly when removing multiple listeners. NOTE - not compatible when using the element option. See un for the proper syntax for removing listeners added using the element config.

Defaults to:

false

priority :  Number (optional)

An optional numeric priority that determines the order in which event handlers are run. Event handlers with no priority will be run as if they had a priority of 0. Handlers with a higher priority will be prioritized to run sooner than those with a lower priority. Negative numbers can be used to set a priority lower than the default. Internally, the framework uses a range of 1000 or greater, and -1000 or lesser for handlers that are intended to run before or after all others, so it is recommended to stay within the range of -999 to 999 when setting the priority of event handlers in application-level code. A priority must be an integer to be valid. Fractional values are reserved for internal framework use.

order :  String (optional)

A legacy option that is provided for backward compatibility. It is recommended to use the priority option instead. Available options are:

  • 'before': equal to a priority of 100
  • 'current': equal to a priority of 0 or default priority
  • 'after': equal to a priority of -100

Defaults to:

'current'

order :  String (optional)

A shortcut for the order event option. Provided for backward compatibility. Please use the priority event option instead.

Defaults to: 'current'

Returns

:Object

Only when the destroyable option is specified.

A Destroyable object. An object which implements the destroy method which removes all listeners added in this call. For example:

this.btnListeners =  = myButton.on({
    destroyable: true
    mouseover:   function() { console.log('mouseover'); },
    mouseout:    function() { console.log('mouseout'); },
    click:       function() { console.log('click'); }
});

And when those listeners need to be removed:

Ext.destroy(this.btnListeners);

or

this.btnListeners.destroy();

addManagedListener ( item, ename, [fn], [scope], [options] ) : Object

The addManagedListener method is used when some object (call it "A") is listening to an event on another observable object ("B") and you want to remove that listener from "B" when "A" is destroyed. This is not an issue when "B" is destroyed because all of its listeners will be removed at that time.

Example:

Ext.define('Foo', {
    extend: 'Ext.Component',

    initComponent: function () {
        this.addManagedListener(MyApp.SomeSharedMenu, 'show', this.doSomething);
        this.callParent();
    }
});

As you can see, when an instance of Foo is destroyed, it ensures that the 'show' listener on the menu (MyApp.SomeGlobalSharedMenu) is also removed.

As of version 5.1 it is no longer necessary to use this method in most cases because listeners are automatically managed if the scope object provided to addListener is an Observable instance. However, if the observable instance and scope are not the same object you still need to use mon or addManagedListener if you want the listener to be managed.

Parameters

item :  Ext.util.Observable/Ext.dom.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/String (optional)

If the ename parameter was an event name, this is the handler function or the name of a method on the specified scope.

scope :  Object (optional)

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

options :  Object (optional)

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

Returns

:Object

Only when the destroyable option is specified.

A Destroyable object. An object which implements the destroy method which removes all listeners added in this call. For example:

this.btnListeners = myButton.mon({
    destroyable: true
    mouseover:   function() { console.log('mouseover'); },
    mouseout:    function() { console.log('mouseout'); },
    click:       function() { console.log('click'); }
});

And when those listeners need to be removed:

Ext.destroy(this.btnListeners);

or

this.btnListeners.destroy();

addPlugin ( plugin )

Adds a plugin. For example:

 list.addPlugin('pullrefresh');

Or:

 list.addPlugin({
     type: 'pullrefresh',
     pullRefreshText: 'Pull to refresh...'
 });

Available since: 6.2.0

Parameters

plugin :  Object/String/Ext.plugin.Abstract

The plugin or config object or alias to add.

afterEdit
private pri

Used to handle joining of a record to a tpl

afterErase
private pri

Used to handle joining of a record to a tpl

alignTo ( component, alignment, options )
private pri

Parameters

component :  Object

alignment :  Object

options :  Object

animateActiveItem ( activeItem, animation )

Animates to the supplied activeItem with a specified animation. Currently this only works with a Card layout. This passed animation will override any default animations on the container, for a single card switch. The animation will be destroyed when complete.

Parameters

activeItem :  Object/Number

The item or item index to make active.

animation :  Object/Ext.layout.card.fx.Abstract

Card animation configuration or instance.

applyActiveItem ( activeItem, currentActiveItem ) : Number
private pri

Parameters

activeItem :  Object

currentActiveItem :  Object

Returns

:Number

applyBind ( binds, currentBindings ) : Object
private pri

Available since: 5.0.0

Parameters

binds :  String/Object

currentBindings :  Object

Returns

:Object

applyCentered ( centered ) : Boolean
private pri

Parameters

centered :  Boolean

Returns

:Boolean

applyControl ( selectors )
private pri

Parameters

selectors :  Object

applyItemDefaults ( item ) : Object/Ext.Component
private pri

Applies the container's defaults onto a child item. The item can be a config object or an instance but has to be an inner item.

Parameters

item :  Object/Ext.Component

The item to apply the defaults to.

Returns

:Object/Ext.Component

The item that was passed in

applyMasked ( masked ) : Object

Changes the masked configuration when its setter is called, which will convert the value into a proper object/instance of Ext.Mask/Ext.LoadMask. If a mask already exists, it will use that instead.

Parameters

masked :  Boolean/Object/String/Ext.Mask/Ext.LoadMask

Returns

:Object

applyPlugins ( plugins, oldPlugins )
private pri

Applier for the plugins config property.

Parameters

plugins :  String[]/Object[]/Ext.plugin.Abstract[]

The new plugins to use.

oldPlugins :  Ext.plugin.Abstract[]

The existing plugins in use.

applySession ( session ) : Ext.data.Session
private pri

Transforms a Session config to a proper instance.

Available since: 5.0.0

Parameters

session :  Object

Returns

:Ext.data.Session

applyTpl ( tpl )
private pri

Parameters

tpl :  Object

applyViewModel ( viewModel ) : Ext.app.ViewModel
private pri

Transforms a ViewModel config to a proper instance.

Available since: 5.0.0

Parameters

viewModel :  String/Object/Ext.app.ViewModel

Returns

:Ext.app.ViewModel

attachNameRef ( component )
private pri

Sets up a component name reference.

Parameters

component :  Ext.Component

The component to reference.

attachReference ( component )
private pri

Sets up a component reference.

Parameters

component :  Ext.Component

The component to reference.

beforeMenuAnimate ( menu )
private pri

Sets up the before conditions to begin animating a menu into view whether from showMenu, or beginEdgeSwipe

Parameters

menu :  Ext.Sheet

The menu to setup the animation.

bubble ( fn, [scope], [args] )

Bubbles up the getRefOwner hierarchy, calling the specified function with each component. The scope (this reference) of the 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. Defaults to passing the current component.

center Ext.Component
chainable ch

Center this floated or positioned Component in its parent.

Returns

:Ext.Component

this

child ( [selector] ) : Ext.Component

Retrieves the first direct child of this container which matches the passed selector or component. The passed in selector must comply with an Ext.ComponentQuery selector, or it can be an actual Ext.Component.

Parameters

selector :  String/Ext.Component (optional)

An Ext.ComponentQuery selector. If no selector is specified, the first child will be returned.

Returns

:Ext.Component

The matching child Ext.Component (or null if no match was found).

clearDelegatedListeners
private pri

Clears all listeners that were attached using the "delegate" event option. Users should not invoke this method directly. It is called automatically as part of normal clearListeners processing.

clearListeners

Removes all listeners for this object including the managed listeners

clearManagedListeners

Removes all managed listeners for this object.

constructor ( config )

Creates new Component.

Parameters

config :  Object

The standard configuration object.

createPlugin ( config ) : Ext.plugin.Abstract
private pri

Converts the provided type or config object into a plugin instance.

Parameters

config :  String/Object/Ext.plugin.Abstract

The plugin type, config object or instance.

Returns

:Ext.plugin.Abstract

createRelayer ( newName, [beginEnd] ) : Function
private pri

Creates an event handling function which re-fires the event from this object as the passed event name.

Parameters

newName :  String

The name under which to re-fire the passed parameters.

beginEnd :  Array (optional)

The caller can specify on which indices to slice.

Returns

:Function

destroy
private pri

Destructor for classes that extend Observable.

destroyPlugin ( plugin ) : Ext.plugin.Abstract

Removes and destroys a plugin.

Note: Not all plugins are designed to be removable. Consult the documentation for the specific plugin in question to be sure.

Available since: 6.2.0

Parameters

plugin :  String/Ext.plugin.Abstract

The plugin or its id to remove.

Returns

:Ext.plugin.Abstract

plugin instance or null if not found.

doAdd ( item, instanced )
private pri

Parameters

item :  Ext.Component

instanced :  Boolean

when received.

doDestroy

Perform the actual destruction sequence. This is the method to override in your subclasses to add steps specific to the destruction of custom Component.

If the Component is currently added to a Container it will first be removed from that Container. All Ext.Element references are also deleted and the Component is de-registered from Ext.ComponentManager.

As a rule of thumb, subclasses should destroy their child Components, Elements, and/or other objects before calling parent method. Any object references will be nulled after this method has finished, to prevent the possibility of memory leaks.

Available since: 6.2.0

doFireDelegatedEvent ( eventName, args )
private pri

Fires a delegated event. Users should not invoke this method directly. It is called automatically by the framework as needed (see the "delegate" event option of addListener for more details.

Parameters

eventName :  Object

args :  Object

doFireEvent ( eventName, args, bubbles )
private pri

Continue to fire event.

Parameters

eventName :  String

args :  Array

bubbles :  Boolean

doInsert ( index, item, instanced )
private pri

Parameters

index :  Number

item :  Ext.Component

instanced :  Boolean

down ( [selector] ) : Ext.Component

Retrieves the first descendant of this container which matches the passed selector. The passed in selector must comply with an Ext.ComponentQuery selector, or it can be an actual Ext.Component.

Parameters

selector :  String/Ext.Component (optional)

An Ext.ComponentQuery selector or Ext.Component. If no selector is specified, the first child will be returned.

Returns

:Ext.Component

The matching descendant Ext.Component (or null if no match was found).

enableBubble ( eventNames )

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 Ext.Component#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.define('Ext.overrides.form.field.Base', {
    override: 'Ext.form.field.Base',

    //  Add functionality to Field's initComponent to enable
    // the change event to bubble
    initComponent: function () {
        this.callParent();
        this.enableBubble('change');
    }
});

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

Parameters

eventNames :  String/String[]

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

enableTabbing ( reset )
private pri

Parameters

reset :  Object

factoryItem ( item ) : Ext.Component
protected pro

Called when an item is added to this container either during initialization of the cfg-items config, or when new items are {@link #method!add added), or inserted.

If the passed object is not an instanced component, it converts the passed object into an instanced child component.

It applies cfg-defaults applied for contained child items - that is items which are not positiond using left, top, bottom, right, centered or docked.

Derived classes can override this method to process context appropriate short-hands such as Toolbar and "->" to insert a spacer.

Parameters

item :  Mixed

The item being added. May be a raw config object or an instanced Component or some other short-hand understood by the container.

Returns

:Ext.Component

The component to be added.

findDefaultFocus

Finds the configured default focus item. See defaultFocus.

findFocusTarget Ext.Component
private pri

Finds an alternate Component to focus if this Component is disabled while focused, or focused while disabled, or otherwise unable to focus.

In both cases, focus must not be lost to document.body, but must move to an intuitively connectible Component, either a sibling, or uncle or nephew.

This is both for the convenience of keyboard users, and also for when focus is tracked within a Component tree such as for ComboBoxes and their dropdowns.

For example, a ComboBox with a PagingToolbar in is BoundList. If the "Next Page" button is hit, the LoadMask shows and focuses, the next page is the last page, so the "Next Page" button is disabled. When the LoadMask hides, it attempt to focus the last focused Component which is the disabled "Next Page" button. In this situation, focus should move to a sibling within the PagingToolbar.

Returns

:Ext.Component

A closely related focusable Component to which focus can move.

findPlugin ( type ) : Ext.plugin.Abstract

Retrieves plugin by its type alias. For example:

 var list = Ext.create({
     xtype: 'list',
     itemTpl: '<div class="item">{title}</div>',
     store: 'Items',

     plugins: ['listpaging', 'pullrefresh']
 });

 list.findPlugin('pullrefresh').setPullRefreshText('Pull to refresh...');

Note: See also getPlugin.

Available since: 6.2.0

Parameters

type :  String

The Plugin's type as specified by the class's alias configuration.

Returns

:Ext.plugin.Abstract

plugin instance or null if not found.

fireAction ( eventName, args, fn, [scope], [options], [order] )
deprecated dep

Fires the specified event with the passed parameters and executes a function (action). By default, the action function will be executed after any "before" event handlers (as specified using the order option of addListener), but before any other handlers are fired. This gives the "before" handlers an opportunity to cancel the event by returning false, and prevent the action function from being called.

The action can also be configured to run after normal handlers, but before any "after" handlers (as specified using the order event option) by passing 'after' as the order parameter. This configuration gives any event handlers except for "after" handlers the opportunity to cancel the event and prevent the action function from being called.

Parameters

eventName :  String

The name of the event to fire.

args :  Array

Arguments to pass to handlers and to the action function.

fn :  Function

The action function.

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)

Event options for the action function. Accepts any of the options of addListener

order :  String (optional)

The order to call the action function relative too the event handlers ('before' or 'after'). Note that this option is simply used to sort the action function relative to the event handlers by "priority". An order of 'before' is equivalent to a priority of 99.5, while an order of 'after' is equivalent to a priority of -99.5. See the priority option of addListener for more details.

Defaults to: 'before'

Deprecated since version 5.5
Use fireEventedAction instead.

fireEvent ( eventName, args ) : Boolean

Fires the specified event with the passed parameters (minus the event name, plus the options object passed to addListener).

An event may be set to bubble up an Observable parent hierarchy (See Ext.Component#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.

fireEventArgs ( eventName, args ) : Boolean

Fires the specified event with the passed parameter list.

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

Parameters

eventName :  String

The name of the event to fire.

args :  Object[]

An array of parameters which are passed to handlers.

Returns

:Boolean

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

fireEventedAction ( eventName, args, fn, [scope], [fnArgs] ) : Boolean

Fires the specified event with the passed parameters and executes a function (action). Evented Actions will automatically dispatch a 'before' event passing. This event will be given a special controller that allows for pausing/resuming of the event flow.

By pausing the controller the updater and events will not run until resumed. Pausing, however, will not stop the processing of any other before events.

Parameters

eventName :  String

The name of the event to fire.

args :  Array

Arguments to pass to handlers and to the action function.

fn :  Function/String

The action function.

scope :  Object (optional)

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

fnArgs :  Array/Boolean (optional)

Optional arguments for the action fn. If not given, the normal args will be used to call fn. If false is passed, the args are used but if the first argument is this instance it will be removed from the args passed to the action function.

Returns

:Boolean

focus ( [selectText] ) : Boolean

Try to focus this component.

If this component is disabled or otherwise not focusable, a close relation will be targeted for focus instead to keep focus localized for keyboard users.

Parameters

selectText :  Boolean/Number[] (optional)

If applicable, true to also select all the text in this component, or an array consisting of start and end (defaults to start) position of selection.

Returns

:Boolean

true if focus target was found and focusing was attempted, false if no focusing attempt was made.

getAriaLabelEl ( [reference] ) : Ext.dom.Element
private pri

Find component(s) that label or describe this component, and return the id(s) of their ariaEl elements.

Parameters

reference :  Function/String/String[] (optional)

Component reference, or array of component references, or a function that should return the proper attribute string. The function will be called in the context of the labelled component.

Returns

:Ext.dom.Element

Element id string, or null

getAt ( index ) : Ext.Component

Returns the Component for a given index in the Container's items.

Parameters

index :  Number

The index of the Component to return.

Returns

:Ext.Component

The item at the specified index, if found.

getBubbleParent Ext.util.Observable
private pri

Gets the bubbling parent for an Observable

Returns

:Ext.util.Observable

The bubble parent. null is returned if no bubble target exists

getComponent ( component ) : Ext.Component

Examines this container's items property and gets a direct child component of this container.

Parameters

component :  String/Number

This parameter may be any of the following:

  • {String} : representing the itemId or id of the child component.
  • {Number} : representing the position of the child component within the items property.

For additional information see Ext.util.MixedCollection#get.

Returns

:Ext.Component

The component (if found).

getDockedComponent ( component ) : Ext.Component/Boolean

Finds a docked item of this container using a reference, idor an index of its location in getDockedItems.

Parameters

component :  String/Number

The id or index of the component to find.

Returns

:Ext.Component/Boolean

The docked component, if found.

getDockedItems Array

Returns all the Ext.Component#docked items in this container.

Returns

:Array

The docked items of this container.

getFirstReferences
private pri

This method is in place on the instance during construction to ensure that any lookup or getReferences calls have the items initialized prior to the lookup.

getFocusClsEl ( [focusEl] ) : Ext.dom.Element
protected pro

Returns the element used to apply focus styling CSS class when Focusable's focusEl becomes focused. By default it is focusEl.

Parameters

focusEl :  Ext.dom.Element (optional)

Return focus styling element for the given focused element. This is used by Components implementing multiple focusable elements.

Returns

:Ext.dom.Element

The focus styling element.

getFocusEl Ext.dom.Element
protected pro

Returns the focus holder element associated with this Container. By default, this is the Container's focusEl element; however if defaultFocus is defined, the child component referenced by that property will be found and returned instead.

Returns

:Ext.dom.Element

the focus holding element.

getId String

Retrieves the id. This method Will auto-generate an id if one has not already been configured.

Returns

:String

id

getInherited ( [inner] ) : Object

This method returns an object containing the inherited properties for this instance.

Available since: 5.0.0

Parameters

inner :  Boolean (optional)

Pass true to return inheritedStateInner instead of the normal inheritedState object. This is only needed internally and should not be passed by user code.

Defaults to: false

Returns

:Object

The inheritedState object containing inherited properties.

getInheritedConfig ( property, [skipThis] ) : Mixed

This method returns the value of a config property that may be inherited from some ancestor.

In some cases, a config may be explicitly set on a component with the intent of only being presented to its children while that component should act upon the inherited value (see referenceHolder for example). In these cases the skipThis parameter should be specified as true.

Available since: 5.0.0

Parameters

property :  String

The name of the config property to return.

skipThis :  Boolean (optional)

Pass true if the property should be ignored if found on this instance. In other words, true means the property must be inherited and not explicitly set on this instance.

Defaults to: false

Returns

:Mixed

The value of the requested property.

getInnerItems Array

Returns all inner items of this container. inner means that the item is not docked or positioned.

Returns

:Array

The inner items of this container.

getMaxHeightElement
private pri

In IE11 vertically flexed elements (such as container body-el or panel body-wrap-el) are not flexed properly when the container has a max-height, but no height. We can workaround the issue by wrapping the vertical box in a horizontal box. See EXTJS-24498

getModalSibling
private pri

Returns the topmost modal floated component (other then this one).

getNamedItems Object

Returns an object holding the descendants of this container keyed by their name. This object should not be held past the scope of the function calling this method. It will not be valid if items are added or removed from this or any sub-container.

The intended usage is shown here (assume there are 3 components with names of "foo", "bar" and "baz" at some level below this container):

 onClick: function () {
     var items = this.getNamedItems();

     // using "items" we can access any descendant by its "name"

     items.foo.getValue() + items.bar.getValue() + items.baz.getValue();
 }

If this component has a name assigned to it, it is not included in this object. That name is understood to belong to the ancestor container configured as the nameHolder.

Available since: 6.5.0

Returns

:Object

An object with each named child. This will be null if this container has no descendants with a name specified.

getParent Ext.Component

Returns the parent of this component, if it has one.

Returns

:Ext.Component

The parent of this component.

getPlugin ( id ) : Ext.plugin.Abstract

Retrieves a plugin by its id.

 var list = Ext.create({
     xtype: 'list',
     itemTpl: '<div class="item">{title}</div>',
     store: 'Items',

     plugins: [{
         type: 'pullrefresh',
         id: 'foo'
     }]
 });

 list.getPlugin('foo').setPullRefreshText('Pull to refresh...');

Note: See also findPlugin.

Available since: 6.2.0

Parameters

id :  String

The id of the plugin.

Returns

:Ext.plugin.Abstract

plugin instance or null if not found.

getPositionedItemTarget ( item ) : Ext.dom.Element
private pri

Similar to getRenderTarget but for positioned items.

Available since: 6.5.0

Parameters

item :  Ext.Component

The positioned item being added.

Returns

:Ext.dom.Element

getRefItems ( deep )
private pri

Used by ComponentQuery to retrieve all of the items which can potentially be considered a child of this Container. This should be overridden by components which have child items that are not contained in items. For example dockedItems, menu, etc

Parameters

deep :  Object

getRefOwner
protected pro

Used by Ext.ComponentQuery, and the up method to find the owning Component in the linkage hierarchy.

By default this returns the Container which contains this Component.

This may be overridden by Component authors who implement ownership hierarchies which are not based upon ownerCt, such as BoundLists being owned by Fields or Menus being owned by Buttons.

getReferences Object

Returns an object holding the descendants of this view keyed by their reference. This object should not be held past the scope of the function calling this method. It will not be valid if items are added or removed from this or any sub-container.

The intended usage is shown here (assume there are 3 components with reference values of "foo", "bar" and "baz" at some level below this container):

 onClick: function () {
     var refs = this.getReferences();

     // using "refs" we can access any descendant by its "reference"

     refs.foo.getValue() + refs.bar.getValue() + refs.baz.getValue();
 }

If this component has a reference assigned to it, that is not included in this object. That reference is understood to belong to the ancestor container configured as the referenceHolder.

Available since: 5.0.0

Returns

:Object

An object with each child reference. This will be null if this container has no descendants with a reference specified.

getRenderTarget Ext.dom.Element
private pri

Returns the element into which the html content and items should be rendered. This defaults to the bodyElement but derived classes can override this method to use a different element.

For containers his only applies to inner items, not docked items. The positioned items are rendered to the element returned by the {@link Ext.Container#getPositionedItemTarget method.

Available since: 6.5.0

Returns

:Ext.dom.Element

getScrollableClientRegion Ext.util.Region
private pri

This method is required by the Scroller to return the scrollable client region

Returns

:Ext.util.Region

The scrolling viewport region.

getStateBuilder ( [cache] ) : Ext.state.Builder
private pri

Creates a state builder to access or edit this instance's state object. If this instance has a getStatefulOwner, the returned builder will have a parent reference that owner's state builder. This can be an arbitrarily deep chain but does proceed all the way up to the root instance (with no owner) since that is the instance that determines the ultimate state storage key.

Parameters

cache :  Boolean (optional)

Pass true to return a cached builder.

Defaults to: false

Returns

:Ext.state.Builder

getStatefulOwner Ext.state.Stateful/Array
private pri

This method allows a class to specify an owning stateful object. This is used by Ext.plugin.Abstract to save their state as part of their owning Ext.Component.

The return value can be either a Stateful object or an array whose first element is a Stateful object. This object's state will be stored inside the state object of the returned Stateful object. If an array is returned, the elements beyond the first are sub-keys in the state object.

For example, Ext.plugin.Abstract implement this method like so:

 getStatefulOwner: function() {
     return [ this.cmp, 'plugins' ];
 }

The effect of this is to produce a state object like so:

 {
     plugins: {
         pluginId1: {
             //...
         }
     }
 }

In order for a child object's state to be saved and restored, all of its parents must also be stateful (i.e., have a stateId).

Returns

:Ext.state.Stateful/Array

getWindowHeight Number

Retrieves the document height.

Returns

:Number

height in pixels.

getWindowWidth Number

Retrieves the document width.

Returns

:Number

width in pixels.

getXTypes String

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

Note: 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.field.Text();
alert(t.getXTypes());  // alerts 'component/field/textfield'

Returns

:String

The xtype hierarchy string.

handleBlurEvent ( info )
private pri

Parameters

info :  Object

handleFocusEvent ( info )
private pri

Parameters

info :  Object

has ( item )
private pri

Parameters

item :  Object

hasInnerItem ( item )
private pri

Parameters

item :  Object

hasListener ( eventName ) : Boolean

Checks to see if this object has any listeners for a specified event, or whether the event bubbles. The answer indicates whether the event needs firing or not.

Parameters

eventName :  String

The name of the event to check for

Returns

:Boolean

true if the event is being listened for or bubbles, else false

hasParent Boolean

Returns true if this component has a parent.

Returns

:Boolean

true if this component has a parent.

hide ( [animation] ) : Ext.Component
chainable ch

Hides this Component optionally using an animation.

Parameters

animation :  Object/Boolean (optional)

You can specify an animation here or a bool to use the hideAnimation config.

Returns

:Ext.Component

hideAllMenus ( animation )

Hides all visible menus.

Parameters

animation :  Object

hideMenu ( side, animation )

Hides a menu specified by the menu's side.

Parameters

side :  'top'/'bottom'/'left'/'right'

The side which the menu is placed.

animation :  Boolean

if false, the menu will be hidden without animation.

hideOtherMenus ( side, animate )

Hides all menus except for the side specified

Parameters

side :  'top'/'bottom'/'left'/'right'

Side not to hide.

animate :  Boolean

if false, the menu will be hidden without animation.

indexOf ( item )
private pri

Parameters

item :  Object

initBindable
private pri

This method triggers the lazy configs and must be called when it is time to fully boot up. The configs that must be initialized are: bind, publishes, session, twoWayBindable and viewModel.

Available since: 5.0.0

initDragConstraints ( draggable )
template tpl

This method is called when a drag is initializing. This method should adjust the drag constraints to ensure all drag movements are properly restricted. See Ext.drag.Source#constrain.

Available since: 6.5.0

Parameters

draggable :  Ext.drag.Source

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

initFocusableElement ( force )
private pri

Sets up the focus listener on this Component's focusEl if it has one.

Form Components which must implicitly participate in tabbing order usually have a naturally focusable element as their focusEl, and it is the DOM event of that receiving focus which drives the Component's onFocus handling, and the DOM event of it being blurred which drives the onBlur handling.

Parameters

force :  Object

initFocusableEvents ( force )
protected pro

Template method to do any event listener initialization for a Focusable. This generally happens after the focusEl is available.

Parameters

force :  Object

initInheritedState ( inheritedState )
protected pro

Called by getInherited to initialize the inheritedState the first time it is requested.

Parameters

inheritedState :  Object

initKeyMap
protected pro

This method should be called when the instance is ready to start listening for keyboard events. This is called automatically for Ext.Component and derived classes. This is done after the component is rendered.

initialize
template tpl protected pro

Allows addition of behavior to the rendering phase.

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

insert ( index, item ) :
chainable ch

Adds a child Component at the given index. For example, here's how we can add a new item, making it the first child Component of this Container:

myContainer.insert(0, {xtype: 'panel', html: 'new item'});

Parameters

index :  Number

The index to insert the Component at.

item :  Object

The Component to insert.

Returns

:

insertAfter ( item, relativeToItem ) :
chainable ch private pri

Parameters

item :  Object

relativeToItem :  Object

Returns

:

insertBefore ( item, relativeToItem )
private pri

Parameters

item :  Object

relativeToItem :  Object

insertFirst ( item )
private pri

Parameters

item :  Object

insertInner ( item, index ) :
chainable ch private pri

Parameters

item :  Ext.Component

index :  Number

Returns

:

insertLast ( item )
private pri

Parameters

item :  Object

invalidateInheritedState
private pri

This method marks the current inherited state as invalid. The next time a call is made to getInherited the objects will be recreated and initialized.

Available since: 5.0.0

is Boolean
template tpl

Selector processing function for use by nextSibling,previousibling, nextNode,and previousNode, to filter candidate nodes.

The base implementation returns true. Classes which mix in Traversable may implement their own implementations. @link{Ext.Widget} does this to implement Ext.ComponentQuery based filterability.

Returns

:Boolean

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

isAncestor ( possibleDescendant ) : Boolean

Determines whether this Component is an ancestor of the passed Component. This will return true if the passed Component is anywhere within the subtree beneath this Component.

Parameters

possibleDescendant :  Ext.Component

The Component to test for presence within this Component's subtree.

Returns

:Boolean

isBlurring ( e ) : Boolean
private pri

Parameters

e :  Object

Returns

:Boolean

isBound ( [name] ) : Boolean

Determines if the passed property name is bound to ViewModel data.

Available since: 6.5.0

Parameters

name :  String (optional)

The property name to test. Defaults to the defaultBindProperty

Returns

:Boolean

true if the passed property receives data from a ViewModel.

isCentered Boolean
private pri

Returns

:Boolean

isDescendantOf ( ancestor ) : Boolean

Determines whether this component is the descendant of a passed component.

Parameters

ancestor :  Ext.Component

A Component which may contain this Component.

Returns

:Boolean

true if the component is the descendant of the passed component, otherwise false.

isDestructing Boolean
private pri

Determines if this Component is inside a Component tree which is destroyed, or is being destroyed.

Returns

:Boolean

true if this Component, or any ancestor is destroyed, or is being destroyed.

isFocusable ( [deep] ) : Boolean

Determine if this Focusable can receive focus at this time.

Note that Containers can be non-focusable themselves while delegating focus treatment to a child Component; see Container for more information.

Parameters

deep :  Boolean (optional)

Optionally determine if the container itself is focusable, or if container's focus is delegated to a child component and that child is focusable.

Defaults to: false

Returns

:Boolean

True if component is focusable, false if not.

isFocusing ( e ) : Boolean
private pri

Parameters

e :  Object

Returns

:Boolean

isScalable
private pri

Returns true if the user can zoom the viewport

isSuspended ( [event] ) : Boolean

Checks if all events, or a specific event, is suspended.

Parameters

event :  String (optional)

The name of the specific event to check

Returns

:Boolean

true if events are suspended

isSyncing ( name ) : Boolean
private pri

Checks if a particular binding is synchronizing the value.

Parameters

name :  String

The name of the property being bound to.

Returns

:Boolean

true if the binding is syncing.

loadState ( state, stateful ) : Object
private pri

This method is called to load state from the provided state builder. This method should return the config properties loaded from state.

This method, like saveState, can be overridden by derived classes:

 loadState: function(state) {
     var ret = this.callParent([ state ]);

     if (ret.foo) {
         // use custom data...

         delete ret.foo;  // remove it since it isn't a config
     }

     return ret;
 }

When overriding this method, it is also likely necessary to override saveState.

Parameters

state :  Ext.state.Builder

stateful :  Object

The stateful properties as an object keyed by config name.

Returns

:Object

lookup ( ref ) : Ext.Component

Gets a reference to the component with the specified reference value.

The method is a short-hand for the lookupReference method.

Available since: 6.0.1

Parameters

ref :  String

The value of the reference to lookup.

Returns

:Ext.Component

The referenced component or null if it is not found.

lookupController ( [skipThis] ) : Ext.app.ViewController

Gets the controller that controls this view. May be a controller that belongs to a view higher in the hierarchy.

Available since: 5.0.1

Parameters

skipThis :  Boolean (optional)

true to not consider the controller directly attached to this view (if it exists).

Defaults to: false

Returns

:Ext.app.ViewController

The controller. null if no controller is found.

lookupName ( name ) : Ext.Component

Gets a reference to the component with the specified name property.

Available since: 6.5.0

Parameters

name :  String

The name of the descendant to lookup.

Returns

:Ext.Component

The component or null if it is not found.

lookupNameHolder ( [skipThis] ) : Ext.Component
private pri

Gets the Form or Component that is used as the name holder for this component.

Available since: 6.5.0

Parameters

skipThis :  Boolean (optional)

false to return this as the name holder if this instance has set nameHolder. Unlike getInheritedConfig this method defaults to true because it is possible that a name property set by the owner of a component that is also a nameHolder itself. In this case, the name connects not to this component but to the parent nameHolder.

Defaults to: true

Returns

:Ext.Component

The name holder.

lookupReference ( ref ) : Ext.Component

Gets a reference to the component with the specified reference value.

The lookup method is a short-hand version of this method.

Available since: 5.0

Parameters

ref :  String

The name of the reference to lookup.

Returns

:Ext.Component

The referenced component or null if it is not found.

lookupReferenceHolder ( [skipThis] ) : Ext.app.ViewController/Ext.Container
private pri

Gets the Controller or Component that is used as the reference holder for this view.

Available since: 5.0.0

Parameters

skipThis :  Boolean (optional)

false to return this as the reference holder if this instance has set referenceHolder. Unlike getInheritedConfig this method defaults to true because it is possible that a reference property set by the owner of a component that is also a referenceHolder itself. In this case, the reference connects not to this component but to the parent referenceHolder.

Defaults to: true

Returns

:Ext.app.ViewController/Ext.Container

The reference holder.

lookupReferences ( ref ) : Ext.Component

Gets a reference to the component with the specified reference value.

The lookup method is a short-hand version of this method.

Available since: 5.0

Parameters

ref :  String

The name of the reference to lookup.

Returns

:Ext.Component

The referenced component or null if it is not found.

lookupSession ( [skipThis] ) : Ext.data.Session

Returns the Ext.data.Session for this instance. This property may come from this instance's session or be inherited from this object's parent.

Available since: 5.0.0

Parameters

skipThis :  Boolean (optional)

Pass true to ignore a session configured on this instance and only consider an inherited session.

Defaults to: false

Returns

:Ext.data.Session

lookupViewModel ( [skipThis] ) : Ext.app.ViewModel

Returns the Ext.app.ViewModel for this instance. This property may come from this this instance's viewModel or be inherited from this object's parent.

Available since: 5.0.0

Parameters

skipThis :  Boolean (optional)

Pass true to ignore a viewModel configured on this instance and only consider an inherited view model.

Defaults to: false

Returns

:Ext.app.ViewModel

mask ( mask )

Convenience method which calls setMasked with a value of true (to show the mask). For additional functionality, call the setMasked function direction (See the masked configuration documentation for more information).

Parameters

mask :  Object

mon ( item, ename, [fn], [scope], [options] ) : Object

Shorthand for addManagedListener. The addManagedListener method is used when some object (call it "A") is listening to an event on another observable object ("B") and you want to remove that listener from "B" when "A" is destroyed. This is not an issue when "B" is destroyed because all of its listeners will be removed at that time.

Example:

Ext.define('Foo', {
    extend: 'Ext.Component',

    initComponent: function () {
        this.addManagedListener(MyApp.SomeGlobalSharedMenu, 'show', this.doSomething);
        this.callParent();
    }
});

As you can see, when an instance of Foo is destroyed, it ensures that the 'show' listener on the menu (MyApp.SomeGlobalSharedMenu) is also removed.

As of version 5.1 it is no longer necessary to use this method in most cases because listeners are automatically managed if the scope object provided to addListener is an Observable instance. However, if the observable instance and scope are not the same object you still need to use mon or addManagedListener if you want the listener to be managed.

Parameters

item :  Ext.util.Observable/Ext.dom.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/String (optional)

If the ename parameter was an event name, this is the handler function or the name of a method on the specified scope.

scope :  Object (optional)

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

options :  Object (optional)

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

Returns

:Object

Only when the destroyable option is specified.

A Destroyable object. An object which implements the destroy method which removes all listeners added in this call. For example:

this.btnListeners = myButton.mon({
    destroyable: true
     mouseover:   function() { console.log('mouseover'); },
    mouseout:    function() { console.log('mouseout'); },
    click:       function() { console.log('click'); }
});

And when those listeners need to be removed:

Ext.destroy(this.btnListeners);

or

this.btnListeners.destroy();

mun ( item, ename, [fn], [scope] )

Shorthand for removeManagedListener. Removes listeners that were added by the mon method.

Parameters

item :  Ext.util.Observable/Ext.dom.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.

nextNode ( [selector] ) : Ext.Component

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 nextSibling.

Parameters

selector :  String (optional)

A Ext.ComponentQuery selector to filter the following nodes.

Returns

:Ext.Component

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

nextSibling ( [selector] ) : Ext.Component

Returns the next sibling of this Component.

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

May also be referred 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 Ext.ComponentQuery selector to filter the following items.

Returns

:Ext.Component

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

on ( eventName, [fn], [scope], [options], [order] ) : Object

The on method is shorthand for addListener.

Appends an event handler to this object. For example:

myGridPanel.on("itemclick", this.onItemClick, this);

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,
    select: this.onSelect,
    viewready: this.onViewReady,
    scope: this // Important. Ensure "this" is correct during handler execution
});

One can also specify options for each event handler separately:

myGridPanel.on({
    cellclick: {fn: this.onCellClick, scope: this, single: true},
    viewready: {fn: panel.onViewReady, scope: panel}
});

Names of methods in a specified scope may also be used:

myGridPanel.on({
    cellclick: {fn: 'onCellClick', scope: this, single: true},
    viewready: {fn: 'onViewReady', scope: panel}
});

Parameters

eventName :  String/Object

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

fn :  Function/String (optional)

The method the event invokes or the name of the method within the specified scope. Will be called with arguments given to Ext.util.Observable#fireEvent plus the options parameter described below.

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.

Note: The options object will also be passed as the last argument to every event handler.

This object 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.

onFrame :  Number

Causes the handler to be scheduled to run at the next animation frame event. If the event fires again before that time, the handler is not rescheduled - the handler will only be called once when the next animation frame is fired, with the last set of arguments passed.

target :  Ext.util.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 Ext.Component. The name of a Component property which references an Ext.dom.Element to add a listener to.

This option is useful during Component construction to add DOM event listeners to elements of Ext.Component which will exist only after the Component is rendered.

For example, to add a click listener to a Panel's body:

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

In order to remove listeners attached using the element, you'll need to reference the element itself as seen below.

 panel.body.un(...)

delegate :  String (optional)

A simple selector to filter the event target or look for a descendant of the target.

The "delegate" option is only available on Ext.dom.Element instances (or when attaching a listener to a Ext.dom.Element via a Component using the element option).

See the delegate example below.

capture :  Boolean (optional)

When set to true, the listener is fired in the capture phase of the event propagation sequence, instead of the default bubble phase.

The capture option is only available on Ext.dom.Element instances (or when attaching a listener to a Ext.dom.Element via a Component using the element option).

stopPropagation :  Boolean (optional)

This option is only valid for listeners bound to Ext.dom.Element. true to call stopPropagation on the event object before firing the handler.

preventDefault :  Boolean (optional)

This option is only valid for listeners bound to Ext.dom.Element. true to call preventDefault on the event object before firing the handler.

stopEvent :  Boolean (optional)

This option is only valid for listeners bound to Ext.dom.Element. true to call stopEvent on the event object before firing the handler.

args :  Array (optional)

Optional arguments to pass to the handler function. Any additional arguments passed to fireEvent will be appended to these arguments.

destroyable :  Boolean (optional)

When specified as true, the function returns a destroyable object. An object which implements the destroy method which removes all listeners added in this call. This syntax can be a helpful shortcut to using un; particularly when removing multiple listeners. NOTE - not compatible when using the element option. See un for the proper syntax for removing listeners added using the element config.

Defaults to:

false

priority :  Number (optional)

An optional numeric priority that determines the order in which event handlers are run. Event handlers with no priority will be run as if they had a priority of 0. Handlers with a higher priority will be prioritized to run sooner than those with a lower priority. Negative numbers can be used to set a priority lower than the default. Internally, the framework uses a range of 1000 or greater, and -1000 or lesser for handlers that are intended to run before or after all others, so it is recommended to stay within the range of -999 to 999 when setting the priority of event handlers in application-level code. A priority must be an integer to be valid. Fractional values are reserved for internal framework use.

order :  String (optional)

A legacy option that is provided for backward compatibility. It is recommended to use the priority option instead. Available options are:

  • 'before': equal to a priority of 100
  • 'current': equal to a priority of 0 or default priority
  • 'after': equal to a priority of -100

Defaults to:

'current'

order :  String (optional)

A shortcut for the order event option. Provided for backward compatibility. Please use the priority event option instead.

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 handlers and handler configs.

grid.on({
    itemclick: 'onItemClick',
    itemcontextmenu: grid.onItemContextmenu,
    destroy: {
        fn: function () {
            // function called within the 'altCmp' scope instead of grid
        },
        scope: altCmp // unique scope for the destroy handler
    },
    scope: grid       // default scope - provided for example clarity
});

Delegate

This is a configuration option that you can pass along when registering a handler for an event to assist with event delegation. By setting this configuration option to a simple selector, the target element will be filtered to look for a descendant of the target. For example:

var panel = Ext.create({
    xtype: 'panel',
    renderTo: document.body,
    title: 'Delegate Handler Example',
    frame: true,
    height: 220,
    width: 220,
    html: '<h1 class="myTitle">BODY TITLE</h1>Body content'
});

// The click handler will only be called when the click occurs on the
// delegate: h1.myTitle ("h1" tag with class "myTitle")
panel.on({
    click: function (e) {
        console.log(e.getTarget().innerHTML);
    },
    element: 'body',
    delegate: 'h1.myTitle'
 });

Defaults to: 'current'

Returns

:Object

Only when the destroyable option is specified.

A Destroyable object. An object which implements the destroy method which removes all listeners added in this call. For example:

this.btnListeners =  = myButton.on({
    destroyable: true
    mouseover:   function() { console.log('mouseover'); },
    mouseout:    function() { console.log('mouseout'); },
    click:       function() { console.log('click'); }
});

And when those listeners need to be removed:

Ext.destroy(this.btnListeners);

or

this.btnListeners.destroy();

onAfter ( eventName, fn, [scope], [options] )

Appends an after-event handler.

Same as addListener with order set to 'after'.

Parameters

eventName :  String/String[]/Object

The name of the event to listen for.

fn :  Function/String

The method the event invokes.

scope :  Object (optional)

The scope for fn.

options :  Object (optional)

An object containing handler configuration.

onBefore ( eventName, fn, [scope], [options] )

Appends a before-event handler. Returning false from the handler will stop the event.

Same as addListener with order set to 'before'.

Parameters

eventName :  String/String[]/Object

The name of the event to listen for.

fn :  Function/String

The method the event invokes.

scope :  Object (optional)

The scope for fn.

options :  Object (optional)

An object containing handler configuration.

onBlur ( e )
private pri

Parameters

e :  Object

onEdgeSwipe ( e )
private pri

Parameters

e :  Object

onEdgeSwipeEnd ( e )
private pri

Parameters

e :  Object

onEdgeSwipeStart ( e )
private pri

Parameters

e :  Object

onFirstItemAdd ( item )
private pri

Initialize layout and event listeners the very first time an item is added

Parameters

item :  Object

onFocus ( e )
private pri

Parameters

e :  Object

onFocusEnter ( e )
template tpl protected pro

Called when focus enters this Component's hierarchy

Parameters

e :  Object

event :  Ext.event.Event

The underlying DOM event.

target :  HTMLElement

The element gaining focus.

relatedTarget :  HTMLElement

The element losing focus.

toComponent :  Ext.Component

The Component gaining focus.

fromComponent :  Ext.Component

The Component losing focus.

backwards :  Boolean

true if the fromComponent is after the toComponent* in the DOM tree, indicating that the user usedSHIFT+TABto move focus. Note that settingtabIndexvalues to affect tabbing order can cause this to be incorrect. SettingtabIndex values is not advised.

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

onFocusLeave ( e )
template tpl protected pro

Called when focus exits from this Component's hierarchy

Parameters

e :  Ext.event.Event

event :  Ext.event.Event

The underlying DOM event.

target :  HTMLElement

The element gaining focus.

relatedTarget :  HTMLElement

The element losing focus.

toComponent :  Ext.Component

The Component gaining focus.

fromComponent :  Ext.Component

The Component losing focus.

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

onFocusMove ( info )
template tpl protected pro

Called when focus moves within this Component's hierarchy

Parameters

info :  Object

event :  Ext.event.Event

The underlying Event object.

toElement :  HTMLElement

The element gaining focus.

fromElement :  HTMLElement

The element losing focus.

toComponent :  Ext.Component

The Component gaining focus.

fromComponent :  Ext.Component

The Component losing focus.

backwards :  Boolean

true if the focus movement is backward in DOM order

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

onInheritedAdd ( parent, instanced )
private pri

Called when this Inheritable is added to a parent

Parameters

parent :  Object

instanced :  Boolean

onInheritedRemove ( destroying )
private pri

Called when this inheritable is removed from a parent

Parameters

destroying :  Boolean

true if this item will be destroyed by it's container

onInitialized ( fn, scope, args )
private pri

Parameters

fn :  Object

scope :  Object

args :  Object

onItemAdd ( item, index )
private pri

Parameters

item :  Object

index :  Object

onItemMove ( item, toIndex, fromIndex )
private pri

Parameters

item :  Object

toIndex :  Object

fromIndex :  Object

onItemRemove ( item, index, destroying )
private pri

Parameters

item :  Object

index :  Object

destroying :  Object

onResize ( width, height, oldWidth, oldHeight )
template tpl protected pro

Optional template method. If implemented, this is called asynchronously after a browser layout caused by a component resize. This may be triggered for any or several of the following reasons:

Parameters

width :  Number

The new width.

height :  Number

The new height.

oldWidth :  Number

The previous width.

oldHeight :  Number

The previous height.

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

onScrollEnd ( x, y )
template tpl protected pro

Invoked when a scroll operation is completed via this component's scroller.

Parameters

x :  Number

The current x position

y :  Number

The current y position

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

onScrollMove ( x, y )
template tpl protected pro

Invoked when this component is scrolled via its scroller.

Parameters

x :  Number

The current x position

y :  Number

The current y position

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

onScrollStart ( x, y )
template tpl protected pro

Invoked when a scroll is initiated on this component via its scroller.

Parameters

x :  Number

The current x position

y :  Number

The current y position

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

onStatefulChange
private pri

This method is called when any of the stateful configs are modified.

onSwipeStart ( e )
private pri

Parameters

e :  Object

onTap ( e )
private pri

Parameters

e :  Object

persistState
private pri

Saves the state of this instance to the persistence store. This method is called by the Ext.state.Provider when it is ready to save state to storage.

preprocessShow ( component, alignment, options )
private pri

This is the private method to ensure everything is set up for showing. This is called by both show and showBy to set a component up. the user-facing method is beforeShow, this setup must have happened by the time that is called.

Parameters

component :  Object

alignment :  Object

options :  Object

previousNode ( [selector] ) : Ext.Component

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 Ext.ComponentQuery selector to filter the preceding nodes.

Returns

:Ext.Component

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

previousSibling ( [selector] ) : Ext.Component

Returns the previous sibling of this Component.

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

May also be referred 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 Ext.ComponentQuery selector to filter the preceding items.

Returns

:Ext.Component

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

processFocusableContainerKeyEvent ( e ) : Ext.util.Event
template tpl private pri

An overrideable function which preprocesses all key events from within this FocusableContainer. The base implementation vetoes processing of key events from input fields by returning undefined. This may be overridden in subclasses with special requirements.

Parameters

e :  Ext.util.Event

A keyboard event that is significant to the operation of a FocusableContainer.

Returns

:Ext.util.Event

The event if it is to be processed as a FocusableContainer navigation keystroke, or undefined if it is to be ignore by the FocusableContainer navigation machinery.

This is a template method. a hook into the functionality of this class. Feel free to override it in child classes.

publishState ( [property], [value] )
protected pro

Publish this components state to the ViewModel. If no arguments are given (or if this is the first call), the entire state is published. This state is determined by the publishes property.

This method is called only by component authors.

Available since: 5.0.0

Parameters

property :  String (optional)

The name of the property to update.

value :  Object (optional)

The value of property. Only needed if property is given.

query ( [selector] ) : Ext.Component[]

Retrieves all descendant components which match the passed selector. Executes an Ext.ComponentQuery.query using this container as its root.

Parameters

selector :  String (optional)

Selector complying to an Ext.ComponentQuery selector. If no selector is specified all items will be returned.

Returns

:Ext.Component[]

Components which matched the selector

queryBy ( fn, [scope] ) : Ext.Component[]

Retrieves all descendant components which match the passed function. The function should return false for components that are to be excluded from the selection.

Parameters

fn :  Function

The matcher function. It will be called with a single argument, the component being tested.

scope :  Object (optional)

The scope in which to run the function. If not specified, it will default to the active component.

Returns

:Ext.Component[]

Components matched by the passed function

queryById ( id ) : Ext.Component

Finds a component at any level under this container matching the id/itemId. This is a shorthand for calling ct.down('#' + id);

Parameters

id :  String

The id to find

Returns

:Ext.Component

The matching id, null if not found

readStateObject Object
private pri

Returns this instance's state object from the persistence store. This object should contain config properties.

Returns

:Object

relayEvents ( origin, events, [prefix] ) : Object

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

For example if you are extending Grid, you might decide to forward some events from store. So you can do this inside your initComponent:

this.relayEvents(this.getStore(), ['load']);

The grid instance will then have an observable 'load' event which will be passed the parameters of the store's load event and any function fired with the grid's load event would have access to the grid using the this keyword (unless the event is handled by a controller's control/listen event listener in which case 'this' will be the controller rather than the grid).

Parameters

origin :  Object

The Observable whose events this object is to relay.

events :  String[]/Object

Array of event names to relay or an Object with key/value pairs translating to ActualEventName/NewEventName respectively. For example: this.relayEvents(this, {add:'push', remove:'pop'});

Would now redispatch the add event of this as a push event and the remove event as a pop event.

prefix :  String (optional)

A common prefix to prepend to the event names. For example:

this.relayEvents(this.getStore(), ['load', 'clear'], 'store');

Now the grid will forward 'load' and 'clear' events of store as 'storeload' and 'storeclear'.

Returns

:Object

A Destroyable object. An object which implements the destroy method which, when destroyed, removes all relayers. For example:

this.storeRelayers = this.relayEvents(this.getStore(), ['load', 'clear'], 'store');

Can be undone by calling

Ext.destroy(this.storeRelayers);

or this.store.relayers.destroy();

remove ( which, [destroy] ) : Ext.Component

Removes an item from this Container, optionally destroying it.

Parameters

which :  Ext.Component/String/Number/Array

The component instance, id or index to remove or an array of these.

destroy :  Boolean (optional)

true to automatically call Component's destroy method.

Returns

:Ext.Component

The Component that was removed.

removeAll ( [destroy], [everything] ) : Ext.Component[]

Removes all items currently in the Container, optionally destroying them all.

Parameters

destroy :  Boolean (optional)

Pass true to destroy each removed Component. Defaults to autoDestroy.

everything :  Boolean (optional)

Pass true to completely remove all items including docked, floated and positioned items.

Returns

:Ext.Component[]

The removed components

removeAt ( index, [destroy] ) : Ext.Component

Removes the Component at the specified index:

myContainer.removeAt(0); // removes the first item

Parameters

index :  Number

The index of the Component to remove.

destroy :  Boolean (optional)

true to automatically call Component's destroy method.

Returns

:Ext.Component

The removed Component

removeDelegatedListener ( eventName, fn, scope )
private pri

Removes delegated listeners for a given eventName, function, and scope. Users should not invoke this method directly. It is called automatically by the framework as part of removeListener processing.

Parameters

eventName :  Object

fn :  Object

scope :  Object

removeInner ( item ) :
chainable ch private pri

Parameters

item :  Ext.Component

Returns

:

removeInnerAt ( index ) : Ext.Component

Removes an inner Component at the specified index:

myContainer.removeInnerAt(0); // removes the first item of the innerItems property

Parameters

index :  Number

The index of the Component to remove.

Returns

:Ext.Component

The removed Component

removeListener ( eventName, fn, [scope] ) :
chainable ch

Removes an event handler.

Parameters

eventName :  String

The type of event the handler was associated with.

fn :  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. It must be the same as the scope argument specified in the original call to Ext.util.Observable#addListener or the listener will not be removed.

Returns

:

removeManagedListener ( item, ename, [fn], [scope] )

Removes listeners that were added by the mon method.

Parameters

item :  Ext.util.Observable/Ext.dom.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.

removeManagedListenerItem ( isClear, managedListener, item, ename, fn, scope )
private pri

Remove a single managed listener item

Parameters

isClear :  Boolean

True if this is being called during a clear

managedListener :  Object

The managed listener item

item :  Object

ename :  String

fn :  Function

scope :  Object

See removeManagedListener for other args

removeMenu ( side, animation )

Removes a menu from a specified side.

Parameters

side :  'top'/'bottom'/'left'/'right'

The side to remove the menu from

animation :  Boolean

Pass true to animate the menu out of view

removePlugin ( plugin, [destroy] ) : Ext.plugin.Abstract

Removes and (optionally) destroys a plugin.

Note: Not all plugins are designed to be removable. Consult the documentation for the specific plugin in question to be sure.

Available since: 6.2.0

Parameters

plugin :  String/Ext.plugin.Abstract

The plugin or its id to remove.

destroy :  Boolean (optional)

Pass true to not call destroy() on the plugin.

Returns

:Ext.plugin.Abstract

plugin instance or null if not found.

resetFloating
deprecated dep

Resets top, right, bottom and left configurations to null, which will cause this component to stop being 'positioned' and to take its place in its owning container's layout.

Deprecated since version 6.2
Use resetPositioned instead.

resetPositioned

Resets top, right, bottom and left configurations to null, which will cause this component to stop being 'positioned' and to take its place in its owning container's layout.

resolveListenerScope ( [defaultScope] ) : Object
protected pro

Gets the default scope for firing late bound events (string names with no scope attached) at runtime.

Parameters

defaultScope :  Object (optional)

The default scope to return if none is found.

Defaults to: this

Returns

:Object

The default event scope

resolveSatelliteListenerScope ( satellite, [defaultScope] ) : Object
protected pro

Returns the default listener scope for a "satellite" of this component. Used for resolving scope for observable objects that are not part of the normal Container/Component hierarchy (for example, plugins)

Available since: 5.1.1

Parameters

satellite :  Ext.mixin.Observable

defaultScope :  Object (optional)

Returns

:Object

The listener scope

resumeEvent ( eventName )

Resumes firing of the named event(s).

After calling this method to resume events, the events will fire when requested to fire.

Note that if the suspendEvent method is called multiple times for a certain event, this converse method will have to be called the same number of times for it to resume firing.

Parameters

eventName :  String...

Multiple event names to resume.

resumeEvents ( [discardQueue] )

Resumes 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.

Parameters

discardQueue :  Boolean (optional)

true to prevent any previously queued events from firing while we were suspended. See suspendEvents.

revertFocus
private pri

Returns focus to the Component or element found in the cached focusEnterEvent.

revertFocusTo ( target )
private pri

This field is on the recieving end of a call from revertFocus.

It is called when focus is being pushed back into this Component from a Component that is focused and is being hidden or disabled.

We must focus the passed element.

Subclasses may perform some extra processing to prepare for refocusing.

Parameters

target :  Object

saveState ( state, stateful )
private pri

Saves the current state of this object to the provided state builder. By default this method saves the configs specified as stateful.

This method can also be overridden by subclasses to store custom data directly to the state builder:

 saveState: function(state) {
     this.callParent([ state ]);

     state.set('foo', 42);
 }

When overriding this method, it is also likely necessary to override loadState.

Parameters

state :  Ext.state.Builder

The state builder to which to save state.

stateful :  Object

The stateful properties as an object keyed by config name.

setMenu ( menu, config ) : Ext.Menu

Sets a menu for a given side of the Viewport.

Adds functionality to show the menu by swiping from the side of the screen from the given side.

If a menu is already set for a given side, it will be replaced by the passed menu.

Available sides are: left, right, top, and bottom.

Note: The cover and reveal animation configs are mutually exclusive. Include only one animation config or omit both to default to cover.

Parameters

menu :  Ext.Menu/Object

The menu instance or config to assign to the viewport.

config :  Object

The configuration for the menu.

side :  'top' / 'bottom' / 'left' / 'right'

The side to put the menu on.

cover :  Boolean

True to cover the viewport content. Defaults to true.

reveal :  Boolean

True to push the menu alongside the viewport content. Defaults to false.

Returns

:Ext.Menu

The menu set for the passed side.

setVisibility ( isVisible )
private pri

Parameters

isVisible :  Object

setXY ( x, y, animation )
private pri

This method has the same arguments as element's setXY method, but is used to maintain the x and y configs (for floated components) or the left and top config for positioned components.

Available since: 6.5.0

Parameters

x :  Object

y :  Object

animation :  Object

show ( [animation] ) : Ext.Component
chainable ch

Shows this component optionally using an animation.

Parameters

animation :  Object/Boolean (optional)

You can specify an animation here or a bool to use the showAnimation config.

Returns

:Ext.Component

showAt ( x, [y] ) : Ext.Component
chainable ch

Displays component at specific xy position. A floating component (like a menu) is positioned relative to its ownerCt if any. Useful for popping up a context menu:

listeners: {
    itemcontextmenu: function(view, record, item, index, event, options) {
        Ext.create('Ext.menu.Menu', {
            width: 100,
            height: 100,
            margin: '0 0 10 0',
            items: [{
                text: 'regular item 1'
            },{
                text: 'regular item 2'
            },{
                text: 'regular item 3'
            }]
        }).showAt(event.getXY());
    }
}

Parameters

x :  Number/Number[]/Object

The new x position or array of [x,y], or an object {x:10, y:10}.

y :  Number (optional)

The new y position.

Returns

:Ext.Component

this

showBy ( component, [alignment], [options] )

Shows this component by another component. If you specify no alignment, it will automatically position this component relative to the reference component depending upon the alignment parameter.

The alignment parameter describes the edge-to-edge alignment of this component with the target. It can be specified thus:

  • Blank: Defaults to positioning where the component will fit trying 'l-r?', 'r-l?', 'b-t?' then 't-b?' in that order.
  • Two anchors: If two values from the table below are passed separated by a dash, the first value is used as the element's anchor point, and the second value is used as the target's anchor point.
  • Two edge/offset descriptors: An edge/offset descriptor is an edge initial (t/r/b/l) followed by a percentage along that side. This describes a point to align with a similar point in the target. So 't0-b0' would be the same as 'tl-bl', 'l0-r50' would place the top left corner of this item halfway down the right edge of the target item. This allows more flexibility and also describes which two edges are considered adjacent when positioning a tip pointer.

Following are all of the supported predefined anchor positions:

 Value  Description
 -----  -----------------------------
 tl     The top left corner
 t      The center of the top edge
 tr     The top right corner
 l      The center of the left edge
 c      The center
 r      The center of the right edge
 bl     The bottom left corner
 b      The center of the bottom edge
 br     The bottom right corner

You can put a '?' at the end of the alignment string to constrain the positioned element to the Ext.Viewport. The element will attempt to align as specified, but the position will be adjusted to constrain to the viewport if necessary. Note that the element being aligned might be swapped to align to a different position than that specified in order to enforce the viewport constraints.

Example Usage:

// show `panel` by `button` using the default positioning (auto fit)
panel.showBy(button);

// align the top left corner of `panel` with the top right corner of `button`
// (constrained to viewport)
panel.showBy(button, "tl-tr?");

// align the bottom right corner of `panel` with the center left edge of `button`
// (not constrained by viewport)
panel.showBy(button, "br-cl");

// align the center of panel with the bottom left corner of button and
// adjust the x position by -6 pixels (and the y position by 0)
panel.showBy(button, "c-bl", [-6, 0]);

// align the 25% point on the bottom edge of this panel
// with the 75% point on the top edge of button.
panel.showBy(button, 'b25-t75');

Parameters

component :  Ext.Component

The target component to show this component by.

alignment :  String (optional)

The alignment string, eg: 'tl-bl'.

options :  Object/Array (optional)

An object containing options for the Ext.util.Region#alignTo method, if an Array is used, it will be assumed to be the offset.

showMenu ( side, animation )

Shows the menu that has been setMenu on the passed side.

If no menu has been set on the passed side, nothing hapens.

Parameters

side :  'top'/'bottom'/'left'/'right'

The side to show the menu for.

animation :  Boolean

if false, the menu will be shown without animation.

sideForDirection ( direction )
private pri

Parameters

direction :  Object

sideForSwipeDirection ( direction ) : String
private pri

Parameters

direction :  Object

Returns

:String

suspendEvent ( eventName )

Suspends firing of the named event(s).

After calling this method to suspend events, the events will no longer fire when requested to fire.

Note that if this is called multiple times for a certain event, the converse method resumeEvent will have to be called the same number of times for it to resume firing.

Parameters

eventName :  String...

Multiple event names to suspend.

suspendEvents ( queueSuspended )

Suspends the firing of all events. (see resumeEvents)

Parameters

queueSuspended :  Boolean

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

toggleMenu ( side )

Toggles the menu specified by side

Parameters

side :  'top'/'bottom'/'left'/'right'

The side which the menu is placed.

transformStatefulConfig ( instanceConfig, configurator ) : Object
private pri

This method is called internally by initConfig to apply whatever changes are needed from persistent storage.

Parameters

instanceConfig :  Object

The base config object

configurator :  Ext.Configurator

Returns

:Object

The config object to use.

un ( eventName, fn, [scope] )

Shorthand for removeListener. Removes an event handler.

Parameters

eventName :  String

The type of event the handler was associated with.

fn :  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. It must be the same as the scope argument specified in the original call to Ext.util.Observable#addListener or the listener will not be removed.

Convenience Syntax

You can use the addListener destroyable: true config option in place of calling un(). For example:

var listeners = cmp.on({
    scope: cmp,
    afterrender: cmp.onAfterrender,
    beforehide: cmp.onBeforeHide,
    destroyable: true
});

// Remove listeners
listeners.destroy();
// or
cmp.un(
    scope: cmp,
    afterrender: cmp.onAfterrender,
    beforehide: cmp.onBeforeHide
);

Exception - DOM event handlers using the element config option

You must go directly through the element to detach an event handler attached using the addListener element option.

panel.on({
    element: 'body',
    click: 'onBodyCLick'
});

panel.body.un({
    click: 'onBodyCLick'
});

unAfter ( eventName, fn, [scope], [options] )

Removes a before-event handler.

Same as removeListener with order set to 'after'.

Parameters

eventName :  String/String[]/Object

The name of the event the handler was associated with.

fn :  Function/String

The handler to remove.

scope :  Object (optional)

The scope originally specified for fn.

options :  Object (optional)

Extra options object.

unBefore ( eventName, fn, [scope], [options] )

Removes a before-event handler.

Same as removeListener with order set to 'before'.

Parameters

eventName :  String/String[]/Object

The name of the event the handler was associated with.

fn :  Function/String

The handler to remove.

scope :  Object (optional)

The scope originally specified for fn.

options :  Object (optional)

Extra options object.

unmask

Convenience method which calls setMasked with a value of false (to hide the mask). For additional functionality, call the setMasked function direction (See the masked configuration documentation for more information).

up ( [selector], [limit] ) : Ext.Container

Walks up the ownership hierarchy looking for an ancestor Component which matches the passed simple selector.

Example:

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

Parameters

selector :  String (optional)

The simple selector to test.

limit :  String/Number/Ext.Component (optional)

This may be a selector upon which to stop the upward scan, or a limit of the number of steps, or Component reference to stop on.

Returns

:Ext.Container

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

updateData ( newData )
private pri

Parameters

newData :  Object

updateSession ( session )
private pri

Updates the session config.

Parameters

session :  Ext.data.Session

updateViewModel ( viewModel, oldViewModel )
private pri

Updates the viewModel config.

Parameters

viewModel :  Ext.app.ViewModel

oldViewModel :  Ext.app.ViewModel

visitPostOrder ( selector, fn, [scope], [extraArgs] )

Traverses the tree rooted at this node in post-order mode, calling the passed function on the nodes at each level. That is the function is called upon each node after being called on its children).

This method is used at each level down the cascade. Currently Ext.Components and Ext.data.TreeModels are queryable.

If you have tree-structured data, you can make your nodes queryable, and use ComponentQuery on them.

Parameters

selector :  Object

A ComponentQuery selector used to filter candidate nodes before calling the function. An empty string matches any node.

fn :  Function

The function to call. Return false to abort the traverse.

node :  Object

The node being visited.

scope :  Object (optional)

The context (this reference) in which the function is executed.

extraArgs :  Array (optional)

A set of arguments to be appended to the function's argument list to pass down extra data known to the caller after the node being visited.

visitPreOrder ( selector, fn, [scope], [extraArgs] )

Traverses the tree rooted at this node in pre-order mode, calling the passed function on the nodes at each level. That is the function is called upon each node before being called on its children).

This method is used at each level down the cascade. Currently Ext.Components and Ext.data.TreeModels are queryable.

If you have tree-structured data, you can make your nodes queryable, and use ComponentQuery on them.

Parameters

selector :  Object

A ComponentQuery selector used to filter candidate nodes before calling the function. An empty string matches any node.

fn :  Function

The function to call. Return false to abort the traverse.

node :  Object

The node being visited.

scope :  Object (optional)

The context (this reference) in which the function is executed.

extraArgs :  Array (optional)

A set of arguments to be appended to the function's argument list to pass down extra data known to the caller after the node being visited.

whenVisible ( fn, [args] ) : Boolean
private pri

Queue a function to run when the component is visible & painted. If those conditions are met, the function will execute immediately, otherwise it will wait until it is visible and painted.

Parameters

fn :  String

The function to execute on this component.

args :  Object[] (optional)

The arguments to pass.

Returns

:Boolean

true if the function was executed immediately.

Static Methods

override ( members ) : Ext.Base
static sta

Override members of this class. Overridden methods can be invoked via Ext.Base#callParent.

Ext.define('My.Cat', {
    constructor: function() {
        alert("I'm a cat!");
    }
});

My.Cat.override({
    constructor: function() {
        alert("I'm going to be a cat!");

        this.callParent(arguments);

        alert("Meeeeoooowwww");
    }
});

var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
                          // alerts "I'm a cat!"
                          // alerts "Meeeeoooowwww"

Direct use of this method should be rare. Use Ext.define instead:

Ext.define('My.CatOverride', {
    override: 'My.Cat',
    constructor: function() {
        alert("I'm going to be a cat!");

        this.callParent(arguments);

        alert("Meeeeoooowwww");
    }
});

The above accomplishes the same result but can be managed by the Ext.Loader which can properly order the override and its target class and the build process can determine whether the override is needed based on the required state of the target class (My.Cat).

Parameters

members :  Object

The properties to add to this class. This should be specified as an object literal containing one or more properties.

Returns

:Ext.Base

this class

events

activate ( newActiveItem, this, oldActiveItem, eOpts )

Fires whenever item within the Container is activated.

Parameters

newActiveItem :  Object

The new active item within the container.

this :  Ext.Container

The Container instance.

oldActiveItem :  Object

The old active item within the container.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

activeItemchange ( sender, value, oldValue, eOpts )

This event fires when activeItem changes.

Parameters

sender :  Ext.Container

The instance firing this event.

value :  Ext.Component/Object/String/Number

The current value of activeItem.

oldValue :  Ext.Component/Object/String/Number

The previous value of activeItem.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

add ( this, item, index, eOpts )

Fires whenever item added to the Container.

Parameters

this :  Ext.Container

The Container instance.

item :  Object

The item added to the Container.

index :  Number

The index of the item within the Container.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

added ( sender, container, index, eOpts )

Fires after a Component had been added to a Container.

Parameters

sender :  Ext.Component

The component firing this event.

container :  Ext.Container

Parent Container

index :  Number

The index of the item within the Container.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

beforeactiveItemchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when activeItem changes.

Parameters

sender :  Ext.Container

The instance firing this event.

value :  Ext.Component/Object/String/Number

The current value of activeItem.

oldValue :  Ext.Component/Object/String/Number

The previous value of activeItem.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforebottomchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when bottom changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of bottom.

oldValue :  Number/String

The previous value of bottom.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforecenteredchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when centered changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Boolean

The current value of centered.

oldValue :  Boolean

The previous value of centered.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforedisabledchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when disabled changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Boolean

The current value of disabled.

oldValue :  Boolean

The previous value of disabled.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforedockedchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when docked changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  String

The current value of docked.

oldValue :  String

The previous value of docked.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforeheightchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when height changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Number/String

The current value of height.

oldValue :  Number/String

The previous value of height.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforehiddenchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when hidden changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Boolean

The current value of hidden.

oldValue :  Boolean

The previous value of hidden.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforehide ( sender, eOpts )

Fires before the Component is hidden. Hide may be vetoed by returning false from a handler.

Parameters

sender :  Ext.Component

The component firing this event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

beforeleftchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when left changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of left.

oldValue :  Number/String

The previous value of left.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforemaxHeightchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when maxHeight changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of maxHeight.

oldValue :  Number/String

The previous value of maxHeight.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforemaxWidthchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when maxWidth changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of maxWidth.

oldValue :  Number/String

The previous value of maxWidth.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforeminHeightchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when minHeight changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of minHeight.

oldValue :  Number/String

The previous value of minHeight.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforeminWidthchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when minWidth changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of minWidth.

oldValue :  Number/String

The previous value of minWidth.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforeorientationchange
removed rem

Fires before orientation changes.

This method has been REMOVED since 2.0.0

beforerightchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when right changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of right.

oldValue :  Number/String

The previous value of right.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforescrollablechange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when scrollable changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Boolean/String/Object

The current value of scrollable.

oldValue :  Boolean/String/Object

The previous value of scrollable.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforeshow ( sender, eOpts )

Fires before the Component is shown. Show may be vetoed by returning false from a handler.

Parameters

sender :  Ext.Component

The component firing this event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

beforetopchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when top changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of top.

oldValue :  Number/String

The previous value of top.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

beforewidthchange ( sender, value, oldValue, eOpts ) : Boolean

This event fires when width changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Number/String

The current value of width.

oldValue :  Number/String

The previous value of width.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Returns

:Boolean

Return false to cancel the change.

blur ( this, event, eOpts )

Fires when this Component's focusEl loses focus.

Parameters

this :  Ext.Component

event :  Ext.event.Event

The blur event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

bottomchange ( sender, value, oldValue, eOpts )

This event fires when bottom changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of bottom.

oldValue :  Number/String

The previous value of bottom.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

centeredchange ( sender, value, oldValue, eOpts )

This event fires when centered changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Boolean

The current value of centered.

oldValue :  Boolean

The previous value of centered.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

deactivate ( oldActiveItem, this, newActiveItem, eOpts )

Fires whenever item within the Container is deactivated.

Parameters

oldActiveItem :  Object

The old active item within the container.

this :  Ext.Container

The Container instance.

newActiveItem :  Object

The new active item within the container.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

destroy

Fires when the component is destroyed

disabledchange ( sender, value, oldValue, eOpts )

This event fires when disabled changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Boolean

The current value of disabled.

oldValue :  Boolean

The previous value of disabled.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

dockedchange ( sender, value, oldValue, eOpts )

This event fires when docked changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  String

The current value of docked.

oldValue :  String

The previous value of docked.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

erased ( sender, eOpts )

Fires when the component is no longer displayed in the DOM. Listening to this event will degrade performance not recommend for general use.

Parameters

sender :  Ext.Component

The component firing this event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

floatingchange ( sender, positioned, eOpts )
deprecated dep

Fires whenever there is a change in the positioned status of a component

Parameters

sender :  Ext.Component

The component firing this event.

positioned :  Boolean

The component's new positioned state. This becomes true is a component is positioned using the cfg-top, cfg-right, cfg-bottom or cfg-left configs.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

Deprecated since version 6.2.0
Use positionedchange instead

focus ( this, event, eOpts )

Fires when this Component's focusEl receives focus.

Parameters

this :  Ext.Component/Ext.Widget

event :  Ext.event.Event

The focus event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

focusenter ( this, event, eOpts )

Fires when focus enters this Component's hierarchy.

Parameters

this :  Ext.Component

event :  Ext.event.Event

The focusenter event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

focusleave ( this, event, eOpts )

Fires when focus leaves this Component's hierarchy.

Parameters

this :  Ext.Component

event :  Ext.event.Event

The focusleave event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

fullscreen ( sender, eOpts )

Fires whenever a Component with the fullscreen config is instantiated

Parameters

sender :  Ext.Component

The component firing this event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

heightchange ( sender, value, oldValue, eOpts )

This event fires when height changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Number/String

The current value of height.

oldValue :  Number/String

The previous value of height.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

hiddenchange ( sender, value, oldValue, eOpts )

This event fires when hidden changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Boolean

The current value of hidden.

oldValue :  Boolean

The previous value of hidden.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

hide ( sender, eOpts )

Fires whenever the Component is hidden

Parameters

sender :  Ext.Component

The component firing this event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

initialize ( sender, eOpts )

Fires when the component has been initialized

Parameters

sender :  Ext.Component

The component firing this event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

leftchange ( sender, value, oldValue, eOpts )

This event fires when left changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of left.

oldValue :  Number/String

The previous value of left.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

maxHeightchange ( sender, value, oldValue, eOpts )

This event fires when maxHeight changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of maxHeight.

oldValue :  Number/String

The previous value of maxHeight.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

maximize ( this, eOpts )

Fires when the Viewport is maximized.

Parameters

this :  Ext.Viewport

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

maxWidthchange ( sender, value, oldValue, eOpts )

This event fires when maxWidth changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of maxWidth.

oldValue :  Number/String

The previous value of maxWidth.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

minHeightchange ( sender, value, oldValue, eOpts )

This event fires when minHeight changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of minHeight.

oldValue :  Number/String

The previous value of minHeight.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

minWidthchange ( sender, value, oldValue, eOpts )

This event fires when minWidth changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of minWidth.

oldValue :  Number/String

The previous value of minWidth.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

move ( this, item, toIndex, fromIndex, eOpts )

Fires whenever item moved within the Container.

Parameters

this :  Ext.Container

The Container instance.

item :  Object

The item moved within the Container.

toIndex :  Number

The new index of the item.

fromIndex :  Number

The old index of the item.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

moved ( sender, container, toIndex, fromIndex, eOpts )

Fires when a component si moved within its Container.

Parameters

sender :  Ext.Component

The component firing this event.

container :  Ext.Container

Container which holds the component

toIndex :  Number

The new index of the item.

fromIndex :  Number

The old index of the item.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

orientationchange ( this, newOrientation, width, height, eOpts )

Fires when the Viewport orientation has changed.

Parameters

this :  Ext.Viewport

newOrientation :  String

The new orientation.

width :  Number

The width of the Viewport.

height :  Number

The height of the Viewport.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

painted ( sender, element, eOpts )

Fires whenever this Element actually becomes visible (painted) on the screen. This is useful when you need to perform 'read' operations on the DOM element, i.e: calculating natural sizes and positioning.

Note: This event is not available to be used with event delegation. Instead painted only fires if you explicitly add at least one listener to it, for performance reasons.

Parameters

sender :  Ext.Component

The component firing this event.

element :  Ext.dom.Element

The component's outer element (this.element)

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

positionedchange ( sender, positioned, eOpts )

Fires whenever there is a change in the positioned status of a component

Parameters

sender :  Ext.Component

The component firing this event.

positioned :  Boolean

The component's new positioned state. This becomes true is a component is positioned using the cfg-top, cfg-right, cfg-bottom or cfg-left configs.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

ready ( this, eOpts )

Fires when the Viewport is in the DOM and ready.

Parameters

this :  Ext.Viewport

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

remove ( this, item, index, eOpts )

Fires whenever item removed from the Container.

Parameters

this :  Ext.Container

The Container instance.

item :  Object

The item removed from the Container.

index :  Number

The index of the item that was removed.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

removed ( sender, container, index, eOpts )

Fires when a component is removed from a Container

Parameters

sender :  Ext.Component

The component firing this event.

container :  Ext.Container

Container which holds the component

index :  Number

The index of the item that was removed.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

renderedchange ( this, item, rendered, eOpts )
private pri

Fires whenever an item is rendered into a container or derendered from a Container.

Parameters

this :  Ext.Container

The Container instance.

item :  Object

The item in the Container.

rendered :  Boolean

The current rendered status of the item.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

resize ( element, info, eOpts )

Important note: For the best performance on mobile devices, use this only when you absolutely need to monitor a Element's size.

Note: This event is not available to be used with event delegation. Instead resize only fires if you explicitly add at least one listener to it, for performance reasons.

Parameters

element :  Ext.dom.Element

The component's outer element (this.element).

info :  Object

The component's new size parameters.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

rightchange ( sender, value, oldValue, eOpts )

This event fires when right changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of right.

oldValue :  Number/String

The previous value of right.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

scrollablechange ( sender, value, oldValue, eOpts )

This event fires when scrollable changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Boolean/String/Object

The current value of scrollable.

oldValue :  Boolean/String/Object

The previous value of scrollable.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

show ( sender, eOpts )

Fires whenever the Component is shown

Parameters

sender :  Ext.Component

The component firing this event.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

topchange ( sender, value, oldValue, eOpts )

This event fires when top changes.

Parameters

sender :  Ext.Component

The instance firing this event.

value :  Number/String

The current value of top.

oldValue :  Number/String

The previous value of top.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

updatedata ( sender, newData, eOpts )

Fires whenever the data of the component is updated

Parameters

sender :  Ext.Component

The component firing this event.

newData :  Object

The new data

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

widthchange ( sender, value, oldValue, eOpts )

This event fires when width changes.

Parameters

sender :  Ext.Widget

The instance firing this event.

value :  Number/String

The current value of width.

oldValue :  Number/String

The previous value of width.

eOpts : Object

The options object passed to Ext.util.Observable.addListener.

ExtReact 6.7.0