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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.

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

- 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.

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.

Ext JS 5.0.0


top

Ext.dom.Element

Summary

Encapsulates a DOM element, adding simple DOM manipulation facilities, normalizing for browser differences.

Usage

// by id
var el = Ext.get("my-div");

// by DOM element reference
var el = Ext.get(myDivElement);

Selecting Descendant Elements

Ext.dom.Element instances can be used to select descendant nodes using CSS selectors. There are 3 methods that can be used for this purpose, each with a slightly different twist:

These methods can accept any valid CSS selector since they all use querySelectorAll under the hood. The primary difference between these three methods is their return type:

To get an array of HTMLElement instances matching the selector '.foo' use the query method:

element.query('.foo');

This can easily be transformed into an array of Ext.dom.Element instances by setting the asDom parameter to false:

element.query('.foo', false);

If the desired result is only the first matching HTMLElement use the selectNode method:

element.selectNode('.foo');

Once again, the dom node can be wrapped in an Ext.dom.Element by setting the asDom parameter to false:

element.selectNode('.foo', false);

The select method is used when the desired return type is a CompositeElementLite or a CompositeElement. These are collections of elements that can be operated on as a group using any of the methods of Ext.dom.Element. The only difference between the two is that CompositeElementLite is a collection of HTMLElement instances, while CompositeElement is a collection of Ext.dom.Element instances. To retrieve a CompositeElementLite that represents a collection of HTMLElements for selector '.foo':

element.select('.foo');

For a CompositeElement simply pass true as the composite parameter:

element.select('.foo', true);

The query selection methods can be used even if you don't have a Ext.dom.Element to start with For example to select an array of all HTMLElements in the document that match the selector '.foo', simply wrap the document object in an Ext.dom.Element instance using Ext#fly:

Ext.fly(document).query('.foo');
No members found using the current filters

configs

Optional Configs

bubbleEvents : String / String[]

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

Defaults to:

null

getBubbleEvents : String / String[]

Returns the value of bubbleEvents

Returns

String / String[]

setBubbleEvents (bubbleEvents)

Sets the value of bubbleEvents

Parameters

bubbleEvents :  String / String[]

listeners : Object

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.

See the Event guide for more

Note: It is bad practice to specify a listener's config when you are defining a class using Ext.define(). Instead, only specify listeners when you are instantiating your class with Ext.create().

Defaults to:

null

getListeners : Object

Returns the value of listeners

Returns

Object

setListeners (listeners)

Sets the value of listeners

Parameters

listeners :  Object

properties

Instance Properties

$className
private pri

Defaults to:

'Ext.Base'

$configPrefixed : Boolean
private pri

The value true causes config values to be stored on instances using a property name prefixed with an underscore ("_") character. A value of false stores config values as properties using their exact name (no prefix).

Defaults to:

false

Available since: 5.0.0

$configStrict : Boolean
private pri

The value true instructs the initConfig method to only honor values for properties declared in the config block of a class. When false, properties that are not declared in a config block will be placed on the instance.

Defaults to:

true

Available since: 5.0.0

component : Ext.Component

A reference to the Component that owns this element. This is null if there is no direct owner.

convertPositionSpec
private pri

By default this method does nothing but return the position spec passed to it. In rtl mode it is overridden to convert "l" to "r" and vice versa when required.

Defaults to:

Ext.identityFn

dom : HTMLElement

The DOM element

Defaults to:

dom

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 or on the Ext.app.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);
 }

id : String

The DOM element ID

Defaults to:

id

isConfiguring : Boolean
readonly ro protected pro

This property is set to true during the call to initConfig.

Defaults to:

false

Available since: 5.0.0

isFirstInstance : Boolean
readonly ro protected pro

This property is set to true if this instance is the first of its class.

Defaults to:

false

Available since: 5.0.0

isInstance : Boolean
readonly ro protected pro

This value is true and is used to identify plain objects from instances of a defined class.

Defaults to:

true

self : Ext.Class
protected pro

Get the reference to the current class from which this object was instantiated. Unlike Ext.Base#statics, this.self is scope-dependent and it's meant to be used for dynamic inheritance. See Ext.Base#statics for a detailed comparison

Ext.define('My.Cat', {
    statics: {
        speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
    },

    constructor: function() {
        alert(this.self.speciesName); // dependent on 'this'
    },

    clone: function() {
        return new this.self();
    }
});


Ext.define('My.SnowLeopard', {
    extend: 'My.Cat',
    statics: {
        speciesName: 'Snow Leopard'         // My.SnowLeopard.speciesName = 'Snow Leopard'
    }
});

var cat = new My.Cat();                     // alerts 'Cat'
var snowLeopard = new My.SnowLeopard();     // alerts 'Snow Leopard'

var clone = snowLeopard.clone();
alert(Ext.getClassName(clone));             // alerts 'My.SnowLeopard'

Defaults to:

Base

Static Properties

$onExtended
static sta private pri

Defaults to:

[]

DISPLAY : Number
static sta

Visibility mode constant for use with Ext.dom.Element#setVisibilityMode. Use the CSS 'display' property to hide the element.

Defaults to:

2

OFFSETS : Number
static sta

Visibility mode constant for use with Ext.dom.Element#setVisibilityMode. Use CSS absolute positioning and top/left offsets to hide the element.

Defaults to:

3

useDelegatedEvents : Boolean
static sta private pri

True to globally disable the delegated event system. The results of setting this to false are unpredictable since the Gesture publisher relies on delegated events in order to work correctly. Disabling delegated events may cause Gestures to function incorrectly or to stop working completely. Use at your own risk!

Defaults to:

true

validNodeTypes : Object
static sta private pri

The list of valid nodeTypes that are allowed to be wrapped

Defaults to:

{
    1: 1,
    // ELEMENT_NODE
    9: 1
}

VISIBILITY : Number
static sta

Visibility mode constant for use with Ext.dom.Element#setVisibilityMode. Use the CSS 'visibility' property to hide the element.

Note that in this mode, isVisible may return true for an element even though it actually has a parent element that is hidden. For this reason, and in most cases, using the OFFSETS mode is a better choice.

Defaults to:

1

methods

Instance Methods

addAfterListener ( 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.

addBeforeListener ( 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.

addCls ( names, [prefix], [suffix] ) :
chainable ch

Adds the given CSS class(es) to this Element.

Parameters

names :  String/String[]

The CSS classes to add separated by space, or an array of classes

prefix :  String (optional)

Prefix to prepend to each class.

suffix :  String (optional)

Suffix to append to each class.

Returns

:

addDeprecations ( deprecations )
private pri

This method applies a versioned, deprecation declaration to this class. This is typically called by the deprecated config.

Parameters

deprecations :  Object

addEvents ( eventNames )
deprecated dep

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

Parameters

eventNames :  Object/String...

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

Deprecated since version 2.0
It's no longer needed to add events before firing.

addListener ( eventName, fn, [scope], [options], [order] )

Appends an event handler to this object. You can review the available handlers by looking at the 'events' section of the documentation for the component you are working with.

Combining Options

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

A delayed, one-time listener:

container.addListener('tap', this.handleTap, this, {
    single: true,
    delay: 100
});

Attaching multiple handlers in 1 call

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

container.addListener({
    tap  : this.onTap,
    swipe: this.onSwipe,

    scope: this // Important. Ensure "this" is correct during handler execution
});

One can also specify options for each event handler separately:

container.addListener({
    tap  : { fn: this.onTap, scope: this, single: true },
    swipe: { fn: button.onSwipe, scope: button }
});

See the Events Guide for more.

Parameters

eventName :  String/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

The method the event invokes. Will be called with arguments given to 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.

This object may contain any of the following properties:

scope :  Object (optional)

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

delay :  Number (optional)

The number of milliseconds to delay the invocation of the handler after the event fires.

single :  Boolean (optional)

true to add a handler to handle just the next firing of the event, and then remove itself.

order :  String (optional)

The order of when the listener should be added into the listener queue.

If you set an order of before and the event you are listening to is preventable, you can return false and it will stop the event.

Available options are before, current and after.

Defaults to:

current

buffer :  Number (optional)

Causes the handler to be 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.

element :  String (optional)

If this observable is a Component, allows you to add a listener onto a element of the component using the element's reference.

Ext.create('Ext.Component', {
    listeners: {
        element: 'element',
        tap: function() {
            alert('element tap!');
        }
    }
});

In Sencha Touch, All components have the element reference, which is the outer most element of the component. Ext.Container also has the innerElement element which contains all children. In most cases element is adequate.

delegate :  String (optional)

For Ext.dom.Element, a simple DOM selector to filter the target or look for a descendant of the target.

Sencha Touch Components can use Ext.ComponentQuery selectors to filter child Components.

// Create a container with a two children; a button and a toolbar
var container = Ext.create('Ext.Container', {
    items: [
        {
            xtype: 'toolbar',
            docked: 'top',
            title: 'My Toolbar'
        },
        {
           xtype: 'button',
           text: 'My Button'
        }
    ]
});

container.addListener({
    // Ext.Buttons have an xtype of 'button', so we use that are a selector for our delegate
    delegate: 'button',

    tap: function() {
        alert('Button tapped!');
    }
});

capture :  Boolean

true to initiate capture which will fire the listeners on the target Element before any descendant Elements. Normal events start with the target element and propagate upward to ancestor elements, whereas captured events propagate from the top of the DOM downward to descendant elements. This option achieves the same result as the useCapture parameter in the standard JavaScript addEventListener method.

order :  String (optional)

The order of when the listener should be added into the listener queue. Possible values are before, current and after.

Defaults to: 'current'

addManagedListener ( object, eventName, [fn], [scope], [options] )
deprecated dep

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

Parameters

object :  Ext.mixin.Observable/HTMLElement

The item to which to add a listener/listeners.

eventName :  Object/String

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

fn :  Function (optional)

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

scope :  Object (optional)

If the eventName parameter was an event name, this is the scope in which the handler function is executed.

options :  Object (optional)

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

Deprecated since version 2.0
All listeners are now automatically managed where necessary. Simply use addListener.

adjustDirect2DDimension ( dimension ) : Number
private pri

Returns the fractional portion of this element's measurement in the given dimension. (IE9+ only)

Parameters

dimension :  Object

Returns

:Number

alignTo ( element, [position], [offsets] ) : Ext.util.Positionable

Aligns the element with another element relative to the specified anchor points. If the other element is the document it aligns it to the viewport. The position parameter is optional, and can be specified in any one of the following formats:

  • Blank: Defaults to aligning the element's top-left corner to the target's bottom-left corner ("tl-bl").
  • One anchor (deprecated): The passed anchor position is used as the target element's anchor point. The element being aligned will position its top-left corner (tl) to that point. This method has been deprecated in favor of the newer two anchor syntax below.
  • 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.

In addition to the anchor points, the position parameter also supports the "?" character. If "?" is passed at the end of the position string, 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. Following are all of the supported anchor positions:

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

Example Usage:

// align el to other-el using the default positioning
// ("tl-bl", non-constrained)
el.alignTo("other-el");

// align the top left corner of el with the top right corner of other-el
// (constrained to viewport)
el.alignTo("other-el", "tr?");

// align the bottom right corner of el with the center left edge of other-el
el.alignTo("other-el", "br-l?");

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

Parameters

element :  Ext.util.Positionable/HTMLElement/String

The Positionable, HTMLElement, or id of the element to align to.

position :  String (optional)

The position to align to

Defaults to: "tl-bl?"

offsets :  Number[] (optional)

Offset the positioning by [x, y] Element animation config object

Returns

:Ext.util.Positionable

this

appendChild ( el, [returnDom] ) : Ext.dom.Element

Appends the passed element(s) to this element

Parameters

el :  String/HTMLElement/Ext.dom.Element/Object

The id or element to insert or a DomHelper config

returnDom :  Boolean (optional)

True to return the raw DOM element instead of Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element

The inserted Element.

appendTo ( el ) : Ext.dom.Element
chainable ch

Appends this element to the passed element.

Parameters

el :  String/HTMLElement/Ext.dom.Element

The new parent element. The id of the node, a DOM Node or an existing Element.

Returns

:Ext.dom.Element

This element.

applyStyles ( styles ) : Ext.dom.Element
chainable ch

More flexible version of setStyle for setting style properties.

Parameters

styles :  String/Object/Function

A style specification string, e.g. "width:100px", or object in the form {width:"100px"}, or a function which returns such a specification.

Returns

:Ext.dom.Element

this

blur Ext.dom.Element
chainable ch

Tries to blur the element. Any exceptions are caught and ignored.

Returns

:Ext.dom.Element

this

calculateAnchorXY ( [anchor], [extraX], [extraY], [size] ) : Number[]
private pri

Calculates x,y coordinates specified by the anchor position on the element, adding extraX and extraY values.

Parameters

anchor :  String (optional)

The specified anchor position. See alignTo for details on supported anchor positions.

Defaults to: 'tl'

extraX :  Number (optional)

value to be added to the x coordinate

extraY :  Number (optional)

value to be added to the y coordinate

size :  Object (optional)

An object containing the size to use for calculating anchor position {width: (target width), height: (target height)} (defaults to the element's current size)

Returns

:Number[]

[x, y] An array containing the element's x and y coordinates

calculateConstrainedPosition ( [constrainTo], [proposedPosition], [local], [proposedSize] ) : Number[]
private pri

Calculates the new [x,y] position to move this Positionable into a constrain region.

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

Priority is given to constraining the top and left within the constraint.

An alternative constraint may be passed.

Parameters

constrainTo :  String/HTMLElement/Ext.dom.Element/Ext.util.Region (optional)

The Element or Ext.util.Region into which this Component is to be constrained. Defaults to the element into which this Positionable was rendered, or this Component's {@link Ext.Component#constrainTo.

proposedPosition :  Number[] (optional)

A proposed [X, Y] position to test for validity and to coerce into constraints instead of using this Positionable's current position.

local :  Boolean (optional)

The proposedPosition is local (relative to floatParent if a floating Component)

proposedSize :  Number[] (optional)

A proposed [width, height] size to use when calculating constraints instead of using this Positionable's current size.

Returns

:Number[]

If the element needs to be translated, the new [X, Y] position within constraints if possible, giving priority to keeping the top and left edge in the constrain region. Otherwise, false.

callParent ( args ) : Object
protected pro

Call the "parent" method of the current method. That is the method previously overridden by derivation or by an override (see Ext#define).

 Ext.define('My.Base', {
     constructor: function (x) {
         this.x = x;
     },

     statics: {
         method: function (x) {
             return x;
         }
     }
 });

 Ext.define('My.Derived', {
     extend: 'My.Base',

     constructor: function () {
         this.callParent([21]);
     }
 });

 var obj = new My.Derived();

 alert(obj.x);  // alerts 21

This can be used with an override as follows:

 Ext.define('My.DerivedOverride', {
     override: 'My.Derived',

     constructor: function (x) {
         this.callParent([x*2]); // calls original My.Derived constructor
     }
 });

 var obj = new My.Derived();

 alert(obj.x);  // now alerts 42

This also works with static methods.

 Ext.define('My.Derived2', {
     extend: 'My.Base',

     statics: {
         method: function (x) {
             return this.callParent([x*2]); // calls My.Base.method
         }
     }
 });

 alert(My.Base.method(10));     // alerts 10
 alert(My.Derived2.method(10)); // alerts 20

Lastly, it also works with overridden static methods.

 Ext.define('My.Derived2Override', {
     override: 'My.Derived2',

     statics: {
         method: function (x) {
             return this.callParent([x*2]); // calls My.Derived2.method
         }
     }
 });

 alert(My.Derived2.method(10); // now alerts 40

To override a method and replace it and also call the superclass method, use callSuper. This is often done to patch a method to fix a bug.

Parameters

args :  Array/Arguments

The arguments, either an array or the arguments object from the current method, for example: this.callParent(arguments)

Returns

:Object

Returns the result of calling the parent method

callSuper ( args ) : Object
protected pro

This method is used by an override to call the superclass method but bypass any overridden method. This is often done to "patch" a method that contains a bug but for whatever reason cannot be fixed directly.

Consider:

 Ext.define('Ext.some.Class', {
     method: function () {
         console.log('Good');
     }
 });

 Ext.define('Ext.some.DerivedClass', {
     extend: 'Ext.some.Class',

     method: function () {
         console.log('Bad');

         // ... logic but with a bug ...

         this.callParent();
     }
 });

To patch the bug in Ext.some.DerivedClass.method, the typical solution is to create an override:

 Ext.define('App.patches.DerivedClass', {
     override: 'Ext.some.DerivedClass',

     method: function () {
         console.log('Fixed');

         // ... logic but with bug fixed ...

         this.callSuper();
     }
 });

The patch method cannot use callParent to call the superclass method since that would call the overridden method containing the bug. In other words, the above patch would only produce "Fixed" then "Good" in the console log, whereas, using callParent would produce "Fixed" then "Bad" then "Good".

Parameters

args :  Array/Arguments

The arguments, either an array or the arguments object from the current method, for example: this.callSuper(arguments)

Returns

:Object

Returns the result of calling the superclass method

center ( centerIn )

Centers the Element in either the viewport, or another Element.

Parameters

centerIn :  String/HTMLElement/Ext.dom.Element

element in which to center the element.

changeListener ( actionFn, eventName, fn, scope, options, order ) :
chainable ch private pri

Parameters

actionFn :  Object

eventName :  Object

fn :  Object

scope :  Object

options :  Object

order :  Object

Returns

:

child ( selector, [returnDom] ) : HTMLElement/Ext.dom.Element

Selects a single direct child based on the passed CSS selector (the selector should not contain an id).

Parameters

selector :  String

The CSS selector.

returnDom :  Boolean (optional)

true to return the DOM node instead of Ext.dom.Element.

Defaults to: false

Returns

:HTMLElement/Ext.dom.Element

The child Ext.dom.Element (or DOM node if returnDom is true)

clearListeners

Removes all listeners for this object.

constrainBox ( box )
private pri

Parameters

box :  Object

constructor ( element )
private pri

Creates new Element directly by passing an id or the HTMLElement. This constructor should not be called directly. Always use Ext.get() or Ext#fly() instead.

In older versions of Ext JS and Sencha Touch this constructor checked to see if there was already an instance of this element in the cache and if so, returned the same instance. As of version 5 this behavior has been removed in order to avoid a redundant cache lookup since the most common path is for the Element constructor to be called from Ext.get(), which has already checked for a cache entry.

Correct way of creating a new Ext.dom.Element (or retrieving it from the cache):

var el = Ext.get('foo'); // by id

var el = Ext.get(document.getElementById('foo')); // by DOM reference

Incorrect way of creating a new Ext.dom.Element

var el = new Ext.dom.Element('foo');

For quick and easy access to Ext.dom.Element methods use a flyweight:

Ext.fly('foo').addCls('foo-hovered');

This simply attaches the DOM node with id='foo' to the global flyweight Element instance to avoid allocating an extra Ext.dom.Element instance. If, however, the Element instance has already been cached by a previous call to Ext.get(), then Ext.fly() will return the cached Element instance. For more info see Ext#fly.

Parameters

element :  String/HTMLElement

contains ( element ) : Boolean

Returns true if this element is an ancestor of the passed element, or is the element.

Parameters

element :  HTMLElement/String

The element to check.

Returns

:Boolean

True if this element is an ancestor of el or the el itself, else false

createChild ( config, [insertBefore], [returnDom] ) : Ext.dom.Element

Creates the passed DomHelper config and appends it to this element or optionally inserts it before the passed child element.

Parameters

config :  Object

DomHelper element config object. If no tag is specified (e.g., {tag:'input'}) then a div will be automatically generated with the specified attributes.

insertBefore :  HTMLElement (optional)

a child element of this element

returnDom :  Boolean (optional)

true to return the dom node instead of creating an Element

Defaults to: false

Returns

:Ext.dom.Element

The new child element

createEventRelayer ( newName ) : Function
private pri

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

Parameters

newName :  String

Returns

:Function

createShim Ext.dom.Element

Creates an iframe shim for this element to keep windowed objects from showing through.

Returns

:Ext.dom.Element

The new shim element

cssTranslate
deprecated dep removed rem

Translates an element using CSS 3 in 2D.

Deprecated
cssTranslate

This method has been REMOVED since 5.0.0

destroy

Destroys this element by removing it from the cache, removing its DOM reference, and removing all of its event listeners.

disableTouchScroll
private pri

Disables native scrolling of an overflowing element using touch-screen input

doAddListener ( name, fn, scope, options, order ) : Boolean
private pri

Parameters

name :  Object

fn :  Object

scope :  Object

options :  Object

order :  Object

Returns

:Boolean

down ( selector, [returnDom] ) : HTMLElement/Ext.dom.Element

Selects a single child at any depth below this element based on the passed CSS selector (the selector should not contain an id).

Use getById if you need to get a reference to a child element via id.

Parameters

selector :  String

The CSS selector

returnDom :  Boolean (optional)

true to return the DOM node instead of Ext.dom.Element

Defaults to: false

Returns

:HTMLElement/Ext.dom.Element

The child Ext.dom.Element (or DOM node if returnDom is true)

enableBubble ( events )

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.

Parameters

events :  String/String[]

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

findParent ( selector, [limit], [returnEl] ) : HTMLElement

Looks at this node and then at parent nodes for a match of the passed simple selector.

Parameters

selector :  String

The simple selector to test. See Ext.dom.Query for information about simple selectors.

limit :  Number/String/HTMLElement/Ext.dom.Element (optional)

The max depth to search as a number or an element which causes the upward traversal to stop and is not considered for inclusion as the result. (defaults to 50 || document.documentElement)

returnEl :  Boolean (optional)

True to return a Ext.dom.Element object instead of DOM node

Defaults to: false

Returns

:HTMLElement

The matching DOM node (or null if no match was found)

findParentNode ( selector, [limit], [returnEl] ) : HTMLElement

Looks at parent nodes for a match of the passed simple selector.

Parameters

selector :  String

The simple selector to test. See Ext.dom.Query for information about simple selectors.

limit :  Number/String/HTMLElement/Ext.dom.Element (optional)

The max depth to search as a number or an element which causes the upward traversal to stop and is not considered for inclusion as the result. (defaults to 50 || document.documentElement)

returnEl :  Boolean (optional)

True to return a Ext.dom.Element object instead of DOM node

Defaults to: false

Returns

:HTMLElement

The matching DOM node (or null if no match was found)

fireAction ( eventName, args, fn, scope ) : Object

Fires the specified event with the passed parameters and execute a function (action) at the end if there are no listeners that return false.

Parameters

eventName :  String

The name of the event to fire.

args :  Array

Arguments to pass to handers.

fn :  Function

Action.

scope :  Object

Scope of fn.

Returns

:Object

fireEvent ( eventName, args ) : Boolean

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

The first argument is the name of the event. Every other argument passed will be available when you listen for the event.

Example

Firstly, we set up a listener for our new event.

this.on('myevent', function(arg1, arg2, arg3, arg4, options, e) {
    console.log(arg1); // true
    console.log(arg2); // 2
    console.log(arg3); // { test: 'foo' }
    console.log(arg4); // 14
    console.log(options); // the options added when adding the listener
    console.log(e); // the event object with information about the event
});

And then we can fire off the event.

this.fireEvent('myevent', true, 2, { test: 'foo' }, 14);

An event may be set to bubble up an Observable parent hierarchy 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.

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.

first ( [selector], [returnDom] ) : Ext.dom.Element/HTMLElement

Gets the first child, skipping text nodes

Parameters

selector :  String (optional)

Find the next sibling that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.

returnDom :  Boolean (optional)

true to return a raw DOM node instead of an Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element/HTMLElement

The first child or null

focus ( [defer] ) : Ext.dom.Element
chainable ch

Tries to focus the element. Any exceptions are caught and ignored.

Parameters

defer :  Number (optional)

Milliseconds to defer the focus

Returns

:Ext.dom.Element

this

getAlignToXY ( element, [position], [offsets] ) : Number[]

Gets the x,y coordinates to align this element with another element. See alignTo for more info on the supported position values.

Parameters

element :  Ext.util.Positionable/HTMLElement/String

The Positionable, HTMLElement, or id of the element to align to.

position :  String (optional)

The position to align to

Defaults to: "tl-bl?"

offsets :  Number[] (optional)

Offset the positioning by [x, y]

Returns

:Number[]

[x, y]

getAnchorToXY ( el, [anchor], [local], [size] ) : Number[]
private pri

Gets the x,y coordinates of an element specified by the anchor position on the element.

Parameters

el :  Ext.dom.Element

The element

anchor :  String (optional)

The specified anchor position. See alignTo for details on supported anchor positions.

Defaults to: 'tl'

local :  Boolean (optional)

True to get the local (element top/left-relative) anchor position instead of page coordinates

size :  Object (optional)

An object containing the size to use for calculating anchor position {width: (target width), height: (target height)} (defaults to the element's current size)

Returns

:Number[]

[x, y] An array containing the element's x and y coordinates

getAnchorXY ( [anchor], [local], [size] ) : Number[]

Gets the x,y coordinates specified by the anchor position on the element.

Parameters

anchor :  String (optional)

The specified anchor position. See alignTo for details on supported anchor positions.

Defaults to: 'tl'

local :  Boolean (optional)

True to get the local (element top/left-relative) anchor position instead of page coordinates

size :  Object (optional)

An object containing the size to use for calculating anchor position {width: (target width), height: (target height)} (defaults to the element's current size)

Returns

:Number[]

[x, y] An array containing the element's x and y coordinates

getAttribute ( name, [namespace] ) : String

Returns the value of an attribute from the element's underlying DOM node.

Parameters

name :  String

The attribute name.

namespace :  String (optional)

The namespace in which to look for the attribute.

Returns

:String

The attribute value.

getBorderPadding Object
private pri

Returns the size of the element's borders and padding.

Returns

:Object

an object with the following numeric properties

  • beforeX
  • afterX
  • beforeY
  • afterY

getBorderWidth ( side ) : Number

Gets the width of the border(s) for the specified side(s)

Parameters

side :  String

Can be t, l, r, b or any combination of those to add multiple values. For example, passing 'lr' would get the border left width + the border right width.

Returns

:Number

The width of the sides passed added together

getBottom ( local ) : Number

Gets the bottom Y coordinate of the element (element Y position + element height)

Parameters

local :  Boolean

True to get the local css position instead of page coordinate

Returns

:Number

getBox ( [contentBox], [local] ) : Object

Return an object defining the area of this Element which can be passed to setBox to set another Element's size/location to match this element.

Parameters

contentBox :  Boolean (optional)

If true a box for the content of the element is returned.

local :  Boolean (optional)

If true the element's left and top relative to its offsetParent are returned instead of page x/y.

Returns

:Object

An object in the format

x :  Number

The element's X position.

y :  Number

The element's Y position.

width :  Number

The element's width.

height :  Number

The element's height.

bottom :  Number

The element's lower bound.

right :  Number

The element's rightmost bound.

The returned object may also be addressed as an Array where index 0 contains the X position and index 1 contains the Y position. The result may also be used for setXY

getById ( id, [asDom] )

Returns a child element of this element given its id.

Parameters

id :  String

The id of the desired child element.

asDom :  Boolean (optional)

True to return the DOM element, false to return a wrapped Element object.

Defaults to: false

getConfig ( [name], [peek] ) : Object

Returns a specified config property value. If the name parameter is not passed, all current configuration options will be returned as key value pairs.

Parameters

name :  String (optional)

The name of the config property to get.

peek :  Boolean (optional)

true to peek at the raw value without calling the getter.

Defaults to: false

Returns

:Object

The config property value.

getConstrainVector ( [constrainTo], [proposedPosition], [proposedSize] ) : Number[]/Boolean

Returns the [X, Y] vector by which this Positionable's element must be translated to make a best attempt to constrain within the passed constraint. Returns false if the element does not need to be moved.

Priority is given to constraining the top and left within the constraint.

The constraint may either be an existing element into which the element is to be constrained, or a Ext.util.Region into which this element is to be constrained.

By default, any extra shadow around the element is not included in the constrain calculations - the edges of the element are used as the element bounds. To constrain the shadow within the constrain region, set the constrainShadow property on this element to true.

Parameters

constrainTo :  Ext.util.Positionable/HTMLElement/String/Ext.util.Region (optional)

The Positionable, HTMLElement, element id, or Region into which the element is to be constrained.

proposedPosition :  Number[] (optional)

A proposed [X, Y] position to test for validity and to produce a vector for instead of using the element's current position

proposedSize :  Number[] (optional)

A proposed [width, height] size to constrain instead of using the element's current size

Returns

:Number[]/Boolean

If the element needs to be translated, an [X, Y] vector by which this element must be translated. Otherwise, false.

getHTML String
deprecated dep

Returns the innerHTML of an Element or an empty string if the element's dom no longer exists.

Returns

:String

Deprecated since version 5.0.0
Please use getHtml instead.

getHeight ( [contentHeight] ) : Number

Returns the offset height of the element.

Parameters

contentHeight :  Boolean (optional)

true to get the height minus borders and padding.

Returns

:Number

The element's height.

getHtml String

Returns the innerHTML of an Element or an empty string if the element's dom no longer exists.

Returns

:String

getId String

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

Returns

:String

id

getInitialConfig ( [name] ) : Object/Mixed

Returns the initial configuration passed to constructor when instantiating this class.

Parameters

name :  String (optional)

Name of the config option to return.

Returns

:Object/Mixed

The full config object or a single config value when name parameter specified.

getLeft ( local ) : Number

Gets the left X coordinate

Parameters

local :  Boolean

True to get the local css position instead of page coordinate

Returns

:Number

getLocalX Number

Returns the x coordinate of this element reletive to its offsetParent.

Returns

:Number

The local x coordinate

getLocalXY Number[]

Returns the x and y coordinates of this element relative to its offsetParent.

Returns

:Number[]

The local XY position of the element

getLocalY Number

Returns the y coordinate of this element reletive to its offsetParent.

Returns

:Number

The local y coordinate

getMargin ( [sides] ) : Object/Number

Returns an object with properties top, left, right and bottom representing the margins of this element unless sides is passed, then it returns the calculated width of the sides (see getPadding).

Parameters

sides :  String (optional)

Any combination of 'l', 'r', 't', 'b' to get the sum of those sides.

Returns

:Object/Number

getOffsetsTo ( offsetsTo ) : Number[]

Returns the offsets of this element from the passed element. The element must both be part of the DOM tree and not have display:none to have page coordinates.

Parameters

offsetsTo :  Ext.util.Positionable/HTMLElement/String

The Positionable, HTMLElement, or element id to get get the offsets from.

Returns

:Number[]

The XY page offsets (e.g. [100, -200])

getOuterHeight
deprecated dep removed rem

Retrieves the height of the element account for the top and bottom margins.

Deprecated
getOuterHeight

This method has been REMOVED since 5.0.0

getOuterWidth
deprecated dep removed rem

Retrieves the width of the element accounting for the left and right margins.

Deprecated
getOuterWidth

This method has been REMOVED since 5.0.0

getPadding ( side ) : Number

Gets the width of the padding(s) for the specified side(s).

Parameters

side :  String

Can be t, l, r, b or any combination of those to add multiple values. For example, passing 'lr' would get the padding left + the padding right.

Returns

:Number

The padding of the sides passed added together.

getPageBox ( [asRegion] ) : Object/Ext.util.Region
deprecated dep

Returns an object defining the area of this Element which can be passed to Ext.util.Positionable#setBox to set another Element's size/location to match this element.

Parameters

asRegion :  Boolean (optional)

If true an Ext.util.Region will be returned

Returns

:Object/Ext.util.Region

box An object in the following format:

{
    left: <Element's X position>,
    top: <Element's Y position>,
    width: <Element's width>,
    height: <Element's height>,
    bottom: <Element's lower bound>,
    right: <Element's rightmost bound>
}

The returned object may also be addressed as an Array where index 0 contains the X position and index 1 contains the Y position. So the result may also be used for setXY

Deprecated since version 5.0.0
use Ext.util.Positionable#getBox to get a box object, and Ext.util.Positionable#getRegion to get a Ext.util.Region.

getRegion Ext.util.Region

Returns a region object that defines the area of this element.

Returns

:Ext.util.Region

A Region containing "top, left, bottom, right" properties.

getRight ( local ) : Number

Gets the right X coordinate of the element (element X position + element width)

Parameters

local :  Boolean

True to get the local css position instead of page coordinates

Returns

:Number

getScrollParent
deprecated dep removed rem

Gets the Scroller instance of the first parent that has one.

Deprecated
getScrollParent

This method has been REMOVED since 5.0.0

getSize ( [contentSize] ) : Object

Returns the size of the element.

Parameters

contentSize :  Boolean (optional)

true to get the width/size minus borders and padding.

Returns

:Object

An object containing the element's size:

width :  Number

height :  Number

getStyle ( property, [inline] ) : String/Object

Returns a named style property based on computed/currentStyle (primary) and inline-style if primary is not available.

Parameters

property :  String/String[]

The style property (or multiple property names in an array) whose value is returned.

inline :  Boolean (optional)

if true only inline styles will be returned.

Defaults to: false

Returns

:String/Object

The current value of the style property for this element (or a hash of named style values if multiple property arguments are requested).

getTextWidth ( text, [min], [max] ) : Number

Returns the width in pixels of the passed text, or the width of the text in this Element.

Parameters

text :  String

The text to measure. Defaults to the innerHTML of the element.

min :  Number (optional)

The minumum value to return.

max :  Number (optional)

The maximum value to return.

Returns

:Number

The text width in pixels.

getTop ( local ) : Number

Gets the top Y coordinate

Parameters

local :  Boolean

True to get the local css position instead of page coordinates

Returns

:Number

getValue ( asNumber ) : String/Number

Returns the value of the value attribute.

Parameters

asNumber :  Boolean

true to parse the value as a number.

Returns

:String/Number

getViewRegion Ext.util.Region

Returns the content region of this element. That is the region within the borders and padding.

Returns

:Ext.util.Region

A Region containing "top, left, bottom, right" member data.

getViewSize Object

Returns the dimensions of the element available to lay content out in. For most elements this is the clientHeight/clientWidth. If the element is the document/document.body the window's innerHeight/innerWidth is returned

If the element (or any ancestor element) has CSS style display: none, the dimensions will be zero.

Returns

:Object

Object describing width and height.

width :  Number

height :  Number

getWidth ( [contentWidth] ) : Number

Returns the offset width of the element.

Parameters

contentWidth :  Boolean (optional)

true to get the width minus borders and padding.

Returns

:Number

The element's width.

getX Number

Gets element X position in page coordinates

Returns

:Number

getXY Array

Gets element X and Y positions in page coordinates

Returns

:Array

[x, y]

getY Number

Gets element Y position in page coordinates

Returns

:Number

hasCls ( name ) : Boolean

Checks if the specified CSS class exists on this element's DOM node.

Parameters

name :  String

The CSS class to check for.

Returns

:Boolean

true if the class exists, else false.

hasConfig ( config )
private pri

Parameters

config :  Object

hasListener ( eventName ) : Boolean

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

Parameters

eventName :  String

The name of the event to check for

Returns

:Boolean

True if the event is being listened for, else false

hide Ext.dom.Element
chainable ch

Hide this element - Uses display mode to determine whether to use "display", "visibility", or "offsets". See setVisible.

Returns

:Ext.dom.Element

this

initConfig ( instanceConfig ) : Ext.Base
chainable ch protected pro

Initialize configuration for this class. a typical example:

Ext.define('My.awesome.Class', {
    // The default config
    config: {
        name: 'Awesome',
        isAwesome: true
    },

    constructor: function(config) {
        this.initConfig(config);
    }
});

var awesome = new My.awesome.Class({
    name: 'Super Awesome'
});

alert(awesome.getName()); // 'Super Awesome'

Parameters

instanceConfig :  Object

Returns

:Ext.Base

this

insertAfter ( el ) : Ext.dom.Element
chainable ch

Inserts this element after the passed element in the DOM.

Parameters

el :  String/HTMLElement/Ext.dom.Element

The element to insert after. The id of the node, a DOM Node or an existing Element.

Returns

:Ext.dom.Element

This element.

insertBefore ( el ) : Ext.dom.Element
chainable ch

Inserts this element before the passed element in the DOM.

Parameters

el :  String/HTMLElement/Ext.dom.Element

The element before which this element will be inserted. The id of the node, a DOM Node or an existing Element.

Returns

:Ext.dom.Element

This element.

insertFirst ( el, [returnDom] ) : Ext.dom.Element

Inserts (or creates) an element as the first child of this element

Parameters

el :  String/HTMLElement/Ext.dom.Element/Object

The id or element to insert or a DomHelper config to create and insert

returnDom :  Boolean (optional)

True to return the raw DOM element instead of Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element

The new child

insertHtml ( where, html, [returnEl] ) : HTMLElement/Ext.dom.Element

Inserts an html fragment into this element

Parameters

where :  String

Where to insert the html in relation to this element - beforeBegin, afterBegin, beforeEnd, afterEnd. See Ext.dom.Helper#insertHtml for details.

html :  String

The HTML fragment

returnEl :  Boolean (optional)

True to return an Ext.dom.Element

Defaults to: false

Returns

:HTMLElement/Ext.dom.Element

The inserted node (or nearest related if more than 1 inserted)

insertSibling ( el, [where], [returnDom] ) : Ext.dom.Element

Inserts (or creates) the passed element (or DomHelper config) as a sibling of this element

Parameters

el :  String/HTMLElement/Ext.dom.Element/Object/Array

The id, element to insert or a DomHelper config to create and insert or an array of any of those.

where :  String (optional)

'before' or 'after'

Defaults to: 'before'

returnDom :  Boolean (optional)

True to return the raw DOM element instead of Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element

The inserted Element. If an array is passed, the last inserted element is returned.

is ( selector ) : Boolean

Returns true if this element matches the passed simple selector (e.g. 'div.some-class' or 'span:first-child').

Parameters

selector :  String/Function

The simple selector to test or a function which is passed candidate nodes, and should return true for nodes which match.

Returns

:Boolean

true if this element matches the selector, else false.

isAncestor ( el ) : Boolean

Returns true if this element is an ancestor of the passed element

Parameters

el :  String/HTMLElement/Ext.dom.Element

The element or id of the element to search for in this elements descendants.

Returns

:Boolean

isDescendent
deprecated dep removed rem

Determines if this element is a descendant of the passed in Element.

Deprecated
isDescendent

This method has been REMOVED since 5.0.0

isStyle ( style, value ) : Boolean

Checks if the current value of a style is equal to a given value.

Parameters

style :  String

property whose value is returned.

value :  String

to check against.

Returns

:Boolean

true for when the current value equals the given value.

isSuspended ( [eventName] ) : Boolean

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

Parameters

eventName :  String (optional)

The name of the specific event to check

Returns

:Boolean

true if events are suspended

isTransparent ( prop ) : Boolean

Returns true if the value of the given property is visually transparent. This may be due to a 'transparent' style value or an rgba value with 0 in the alpha component.

Parameters

prop :  String

The style property whose value is to be tested.

Returns

:Boolean

true if the style property is visually transparent.

isVisible ( [deep] ) : Boolean

Checks whether the element is currently visible using both visibility and display properties.

Parameters

deep :  Boolean (optional)

True to walk the dom and see if parent elements are hidden. If false, the function only checks the visibility of the element itself and it may return true even though a parent is not visible.

Defaults to: false

Returns

:Boolean

true if the element is currently visible, else false

last ( [selector], [returnDom] ) : Ext.dom.Element/HTMLElement

Gets the last child, skipping text nodes

Parameters

selector :  String (optional)

Find the previous sibling that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.

returnDom :  Boolean (optional)

true to return a raw DOM node instead of an Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element/HTMLElement

The last child or null

mon ( object, eventName, [fn], [scope], [options] )
deprecated dep

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

Parameters

object :  Ext.mixin.Observable/HTMLElement

The item to which to add a listener/listeners.

eventName :  Object/String

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

fn :  Function (optional)

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

scope :  Object (optional)

If the eventName parameter was an event name, this is the scope in which the handler function is executed.

options :  Object (optional)

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

Deprecated since version 2.0.0
This is now done automatically

move ( direction, distance )

Move the element relative to its current position.

Parameters

direction :  String

Possible values are:

  • "l" (or "left")
  • "r" (or "right")
  • "t" (or "top", or "up")
  • "b" (or "bottom", or "down")

distance :  Number

How far to move the element in pixels

mun ( object, eventName, [fn], [scope] )
deprecated dep

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

Parameters

object :  Ext.mixin.Observable/HTMLElement

The item to which to add a listener/listeners.

eventName :  Object/String

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

fn :  Function (optional)

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

scope :  Object (optional)

If the eventName parameter was an event name, this is the scope in which the handler function is executed.

Deprecated since version 2.0.0
This is now done automatically

next ( [selector], [returnDom] ) : Ext.dom.Element/HTMLElement

Gets the next sibling, skipping text nodes

Parameters

selector :  String (optional)

Find the next sibling that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.

returnDom :  Boolean (optional)

true to return a raw dom node instead of an Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element/HTMLElement

The next sibling or null

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

Alias for addListener. Appends an event handler to this object. You can review the available handlers by looking at the 'events' section of the documentation for the component you are working with.

Combining Options

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

A delayed, one-time listener:

container.addListener('tap', this.handleTap, this, {
    single: true,
    delay: 100
});

Attaching multiple handlers in 1 call

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

container.addListener({
    tap  : this.onTap,
    swipe: this.onSwipe,

    scope: this // Important. Ensure "this" is correct during handler execution
});

One can also specify options for each event handler separately:

container.addListener({
    tap  : { fn: this.onTap, scope: this, single: true },
    swipe: { fn: button.onSwipe, scope: button }
});

See the Events Guide for more.

Parameters

eventName :  String/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

The method the event invokes. Will be called with arguments given to 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.

This object may contain any of the following properties:

scope :  Object (optional)

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

delay :  Number (optional)

The number of milliseconds to delay the invocation of the handler after the event fires.

single :  Boolean (optional)

true to add a handler to handle just the next firing of the event, and then remove itself.

order :  String (optional)

The order of when the listener should be added into the listener queue.

If you set an order of before and the event you are listening to is preventable, you can return false and it will stop the event.

Available options are before, current and after.

Defaults to:

current

buffer :  Number (optional)

Causes the handler to be 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.

element :  String (optional)

If this observable is a Component, allows you to add a listener onto a element of the component using the element's reference.

Ext.create('Ext.Component', {
    listeners: {
        element: 'element',
        tap: function() {
            alert('element tap!');
        }
    }
});

In Sencha Touch, All components have the element reference, which is the outer most element of the component. Ext.Container also has the innerElement element which contains all children. In most cases element is adequate.

delegate :  String (optional)

For Ext.dom.Element, a simple DOM selector to filter the target or look for a descendant of the target.

Sencha Touch Components can use Ext.ComponentQuery selectors to filter child Components.

// Create a container with a two children; a button and a toolbar
var container = Ext.create('Ext.Container', {
    items: [
        {
            xtype: 'toolbar',
            docked: 'top',
            title: 'My Toolbar'
        },
        {
           xtype: 'button',
           text: 'My Button'
        }
    ]
});

container.addListener({
    // Ext.Buttons have an xtype of 'button', so we use that are a selector for our delegate
    delegate: 'button',

    tap: function() {
        alert('Button tapped!');
    }
});

capture :  Boolean

true to initiate capture which will fire the listeners on the target Element before any descendant Elements. Normal events start with the target element and propagate upward to ancestor elements, whereas captured events propagate from the top of the DOM downward to descendant elements. This option achieves the same result as the useCapture parameter in the standard JavaScript addEventListener method.

order :  String (optional)

The order of when the listener should be added into the listener queue. Possible values are before, current and after.

Defaults to: 'current'

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

Alias for addAfterListener. 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] )

Alias for addBeforeListener. 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.

parent ( [selector], [returnDom] ) : Ext.dom.Element/HTMLElement

Gets the parent node for this element, optionally chaining up trying to match a selector

Parameters

selector :  String (optional)

Find a parent node that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.

returnDom :  Boolean (optional)

True to return a raw dom node instead of an Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element/HTMLElement

The parent node or null

position ( [pos], [zIndex], [x], [y] )

Initializes positioning on this element. If a desired position is not passed, it will make the the element positioned relative IF it is not already positioned.

Parameters

pos :  String (optional)

Positioning to use "relative", "absolute" or "fixed"

zIndex :  Number (optional)

The zIndex to apply

x :  Number (optional)

Set the page X position

y :  Number (optional)

Set the page Y position

prev ( [selector], [returnDom] ) : Ext.dom.Element/HTMLElement

Gets the previous sibling, skipping text nodes

Parameters

selector :  String (optional)

Find the previous sibling that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.

returnDom :  Boolean (optional)

true to return a raw DOM node instead of an Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element/HTMLElement

The previous sibling or null

purgeAllListeners
deprecated dep

Removes all listeners for this object.

Deprecated since version 5.0.0
Please use clearListeners instead.

query ( selector, [asDom] ) : HTMLElement[]/Ext.dom.Element[]

Selects child nodes based on the passed CSS selector. Delegates to document.querySelectorAll. More information can be found at http://www.w3.org/TR/css3-selectors/

All selectors, attribute filters and pseudos below can be combined infinitely in any order. For example div.foo:nth-child(odd)[@foo=bar].bar:first would be a perfectly valid selector.

Element Selectors:

  • * any element
  • E an element with the tag E
  • E F All descendant elements of E that have the tag F
  • E > F or E/F all direct children elements of E that have the tag F
  • E + F all elements with the tag F that are immediately preceded by an element with the tag E
  • E ~ F all elements with the tag F that are preceded by a sibling element with the tag E

Attribute Selectors:

The use of @ and quotes are optional. For example, div[@foo='bar'] is also a valid attribute selector.

  • E[foo] has an attribute "foo"
  • E[foo=bar] has an attribute "foo" that equals "bar"
  • E[foo^=bar] has an attribute "foo" that starts with "bar"
  • E[foo$=bar] has an attribute "foo" that ends with "bar"
  • E[foo*=bar] has an attribute "foo" that contains the substring "bar"
  • E[foo%=2] has an attribute "foo" that is evenly divisible by 2
  • E[foo!=bar] has an attribute "foo" that does not equal "bar"

Pseudo Classes:

  • E:first-child E is the first child of its parent
  • E:last-child E is the last child of its parent
  • E:nth-child(n) E is the nth child of its parent (1 based as per the spec)
  • E:nth-child(odd) E is an odd child of its parent
  • E:nth-child(even) E is an even child of its parent
  • E:only-child E is the only child of its parent
  • E:checked E is an element that is has a checked attribute that is true (e.g. a radio or checkbox)
  • E:first the first E in the resultset
  • E:last the last E in the resultset
  • E:nth(n) the nth E in the resultset (1 based)
  • E:odd shortcut for :nth-child(odd)
  • E:even shortcut for :nth-child(even)
  • E:not(S) an E element that does not match simple selector S
  • E:has(S) an E element that has a descendant that matches simple selector S
  • E:next(S) an E element whose next sibling matches simple selector S
  • E:prev(S) an E element whose previous sibling matches simple selector S
  • E:any(S1|S2|S2) an E element which matches any of the simple selectors S1, S2 or S3//\

CSS Value Selectors:

  • E{display=none} CSS value "display" that equals "none"
  • E{display^=none} CSS value "display" that starts with "none"
  • E{display$=none} CSS value "display" that ends with "none"
  • E{display*=none} CSS value "display" that contains the substring "none"
  • E{display%=2} CSS value "display" that is evenly divisible by 2
  • E{display!=none} CSS value "display" that does not equal "none"

Parameters

selector :  String

The CSS selector.

asDom :  Boolean (optional)

false to return an array of Ext.dom.Element

Defaults to: true

Returns

:HTMLElement[]/Ext.dom.Element[]

An Array of elements that match the selector. If there are no matches, an empty Array is returned.

radioCls ( className ) : Ext.dom.Element

Adds one or more CSS classes to this element and removes the same class(es) from all siblings.

Parameters

className :  String/String[]

The CSS class to add, or an array of classes.

Returns

:Ext.dom.Element

this

relayEvent ( args, fn, scope, options, order )
private pri

Parameters

args :  Object

fn :  Object

scope :  Object

options :  Object

order :  Object

relayEvents ( object, events ) :
chainable ch

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

Parameters

object :  Object

The Observable whose events this object is to relay.

events :  String/Array/Object

Array of event names to relay.

Returns

:

remove
deprecated dep

Destroys this element by removing it from the cache, removing its DOM reference, and removing all of its event listeners.

Deprecated since version 5.0.0
Please use destroy instead.

removeAfterListener ( 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.

removeAllListeners
deprecated dep

Removes all listeners for this object.

Deprecated since version 5.0.0
Please use clearListeners instead.

removeBeforeListener ( 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.

removeCls ( names, [prefix], [suffix] ) :
chainable ch

Removes the given CSS class(es) from this Element.

Parameters

names :  String/String[]

The CSS classes to remove separated by space, or an array of classes

prefix :  String (optional)

Prefix to prepend to each class to be removed.

Defaults to: ''

suffix :  String (optional)

Suffix to append to each class to be removed.

Defaults to: ''

Returns

:

removeListener ( eventName, fn, [scope], [options], [order] )

Removes an event handler.

Parameters

eventName :  String/String[]/Object

The type of event the handler was associated with.

fn :  Function/String

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 addListener or the listener will not be removed.

options :  Object (optional)

Extra options object. See addListener for details.

order :  String (optional)

The order of the listener to remove. Possible values are before, current and after.

Defaults to: 'current'

removeManagedListener ( object, eventName, [fn], [scope] )
deprecated dep

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

Parameters

object :  Ext.mixin.Observable/HTMLElement

The item to which to add a listener/listeners.

eventName :  Object/String

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

fn :  Function (optional)

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

scope :  Object (optional)

If the eventName parameter was an event name, this is the scope in which the handler function is executed.

Deprecated since version 2.0
All listeners are now automatically managed where necessary. Simply use removeListener.

repaint Ext.dom.Element
chainable ch

Forces the browser to repaint this element.

Returns

:Ext.dom.Element

this

replace ( el, [destroy] ) : Ext.dom.Element
chainable ch

Replaces the passed element with this element

Parameters

el :  String/HTMLElement/Ext.dom.Element

The element to replace. The id of the node, a DOM Node or an existing Element.

destroy :  Boolean (optional)

false to prevent destruction of the replaced element

Defaults to: true

Returns

:Ext.dom.Element

This element

replaceCls ( oldName, newName, [prefix], [suffix] ) : Ext.dom.Element
chainable ch

Replaces a CSS class on the element with another. If the old name does not exist, the new name will simply be added.

Parameters

oldName :  String

The CSS class to replace.

newName :  String

The replacement CSS class.

prefix :  String (optional)

Prefix to prepend to each class to be replaced.

Defaults to: ''

suffix :  String (optional)

Suffix to append to each class to be replaced.

Defaults to: ''

Returns

:Ext.dom.Element

this

replaceWith ( el ) : Ext.dom.Element
chainable ch

Replaces this element with the passed element

Parameters

el :  String/HTMLElement/Ext.dom.Element/Object

The new element (id of the node, a DOM Node or an existing Element) or a DomHelper config of an element to create

Returns

:Ext.dom.Element

This element

resolveListenerScope ( [defaultScope] ) : Object
protected pro

This method determines the scope (the this pointer) of named listeners that have not be given a specific scope. For example:

 component.on({
     click: 'onClick'
 });

The default implementation of this method returns this object. Components and other observable objects that have natural hierarchies can override this method to pick the desired scope using other means.

Available since: 5.0.0

Parameters

defaultScope :  Object (optional)

The default scope to return if none is found.

Defaults to: this

Returns

:Object

The object on which non-scoped, named listeners should be fired.

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 ( discardQueuedEvents )

Resumes firing events (see suspendEvents).

Parameters

discardQueuedEvents :  Boolean

Pass as true to discard any queued events.

select ( selector, composite ) : Ext.dom.CompositeElementLite/Ext.dom.CompositeElement

Selects descendant elements of this element based on the passed CSS selector to enable Ext.dom.Element methods to be applied to many related elements in one statement through the returned Ext.dom.CompositeElementLite object.

Parameters

selector :  String/HTMLElement[]

The CSS selector or an array of elements

composite :  Boolean

Return a CompositeElement as opposed to a CompositeElementLite. Defaults to false.

Returns

:Ext.dom.CompositeElementLite/Ext.dom.CompositeElement

selectNode ( selector, [asDom] ) : HTMLElement

Selects a single descendant element of this element using a CSS selector (see query).

Parameters

selector :  String

The selector query

asDom :  Boolean (optional)

false to return an array of Ext.dom.Element

Defaults to: true

Returns

:HTMLElement

The DOM element which matched the selector.

set ( attributes, [useSet] ) : Ext.dom.Element
chainable ch

Sets the passed attributes as attributes of this element (a style attribute can be a string, object or function).

Parameters

attributes :  Object

The object with the attributes.

useSet :  Boolean (optional)

false to override the default setAttribute to use expandos.

Defaults to: true

Returns

:Ext.dom.Element

this

setBottom ( bottom ) : Ext.dom.Element
chainable ch

Sets the element's CSS bottom style.

Parameters

bottom :  Number/String

Number of pixels or CSS string value to set as the bottom CSS property value

Returns

:Ext.dom.Element

this

setBox ( box ) : Ext.util.Positionable
chainable ch

Sets the element's box.

Parameters

box :  Object

The box to fill {x, y, width, height}

Returns

:Ext.util.Positionable

this

setCls ( className )

Sets the specified CSS class on this element's DOM node.

Parameters

className :  String/Array

The CSS class to set on this element.

setConfig ( name, [value] ) : Ext.Base
chainable ch

Sets a single/multiple configuration options.

Parameters

name :  String/Object

The name of the property to set, or a set of key value pairs to set.

value :  Object (optional)

The value to set for the name parameter.

Returns

:Ext.Base

this

setHTML ( html )
deprecated dep

Sets the innerHTML of this element.

Parameters

html :  String

The new HTML.

Deprecated since version 5.0.0
Please use setHtml instead.

setHeight ( height ) : Ext.dom.Element
chainable ch

Set the height of this Element.

Parameters

height :  Number/String

The new height.

Returns

:Ext.dom.Element

this

setHtml ( html )

Sets the innerHTML of this element.

Parameters

html :  String

The new HTML.

setLeft ( left ) : Ext.dom.Element
chainable ch

Sets the element's left position directly using CSS style (instead of setX).

Parameters

left :  Number/String

Number of pixels or CSS string value to set as the left CSS property value

Returns

:Ext.dom.Element

this

setLocalX ( x ) : Ext.util.Positionable

Sets the local x coordinate of this element using CSS style. When used on an absolute positioned element this method is symmetrical with getLocalX, but may not be symmetrical when used on a relatively positioned element.

Parameters

x :  Number

The x coordinate. A value of null sets the left style to 'auto'.

Returns

:Ext.util.Positionable

this

setLocalXY ( x, [y] ) : Ext.util.Positionable

Sets the local x and y coordinates of this element using CSS style. When used on an absolute positioned element this method is symmetrical with getLocalXY, but may not be symmetrical when used on a relatively positioned element.

Parameters

x :  Number/Array

The x coordinate or an array containing [x, y]. A value of null sets the left style to 'auto'

y :  Number (optional)

The y coordinate, required if x is not an array. A value of null sets the top style to 'auto'

Returns

:Ext.util.Positionable

this

setLocalY ( y ) : Ext.util.Positionable

Sets the local y coordinate of this element using CSS style. When used on an absolute positioned element this method is symmetrical with getLocalY, but may not be symmetrical when used on a relatively positioned element.

Parameters

y :  Number

The y coordinate. A value of null sets the top style to 'auto'.

Returns

:Ext.util.Positionable

this

setMaxHeight ( height ) : Ext.dom.Element
chainable ch

Set the maximum height of this Element.

Parameters

height :  Number/String

The new maximum height.

Returns

:Ext.dom.Element

this

setMaxWidth ( width ) : Ext.dom.Element
chainable ch

Set the maximum width of this Element.

Parameters

width :  Number/String

The new maximum width.

Returns

:Ext.dom.Element

this

setMinHeight ( height ) : Ext.dom.Element
chainable ch

Set the minimum height of this Element.

Parameters

height :  Number/String

The new minimum height.

Returns

:Ext.dom.Element

this

setMinWidth ( width ) : Ext.dom.Element
chainable ch

Set the minimum width of this Element.

Parameters

width :  Number/String

The new minimum width.

Returns

:Ext.dom.Element

this

setRight ( right ) : Ext.dom.Element
chainable ch

Sets the element's CSS right style.

Parameters

right :  Number/String

Number of pixels or CSS string value to set as the right CSS property value

Returns

:Ext.dom.Element

this

setSize ( width, height ) : Ext.dom.Element
chainable ch

Set the size of this Element.

Parameters

width :  Number/String

The new width. This may be one of:

  • A Number specifying the new width in pixels.
  • A String used to set the CSS width style. Animation may not be used.
  • A size object in the format {width: widthValue, height: heightValue}.

height :  Number/String

The new height. This may be one of:

  • A Number specifying the new height in pixels.
  • A String used to set the CSS height style. Animation may not be used.

Returns

:Ext.dom.Element

this

setStyle ( property, [value] ) : Ext.dom.Element
chainable ch

Wrapper for setting style properties, also takes single object parameter of multiple styles.

Parameters

property :  String/Object

The style property to be set, or an object of multiple styles.

value :  String (optional)

The value to apply to the given property, or null if an object was passed.

Returns

:Ext.dom.Element

this

setTop ( top ) : Ext.dom.Element
chainable ch

Sets the element's top position directly using CSS style (instead of setY).

Parameters

top :  Number/String

Number of pixels or CSS string value to set as the top CSS property value

Returns

:Ext.dom.Element

this

setTopLeft
deprecated dep removed rem

Sets the element's top and left positions directly using CSS style.

Deprecated
setTopLeft

This method has been REMOVED since 5.0.0

setVisibilityMode ( mode ) :
chainable ch

Use this to change the visibility mode between property-VISIBILITY, property-DISPLAY or property-OFFSETS.

Parameters

mode :  Object

Returns

:

setVisible ( visible ) : Ext.dom.Element
chainable ch

Sets the visibility of the element based on the current visibility mode. Use setVisibilityMode to switch between the following visibility modes:

Parameters

visible :  Boolean

Whether the element is visible.

Returns

:Ext.dom.Element

this

setWidth ( width ) : Ext.dom.Element
chainable ch

Set the width of this Element.

Parameters

width :  Number/String

The new width.

Returns

:Ext.dom.Element

this

setX ( x ) : Ext.dom.Element

Sets this Element's page-level x coordinate

Parameters

x :  Number

Returns

:Ext.dom.Element

this

setXY ( xy ) : Ext.dom.Element
chainable ch

Sets this Element's page-level x and y coordinates

Parameters

xy :  Number[]

Returns

:Ext.dom.Element

this

setY ( y ) : Ext.dom.Element

Sets this Element's page-level y coordinate

Parameters

y :  Number

Returns

:Ext.dom.Element

this

show Ext.dom.Element
chainable ch

Show this element - Uses display mode to determine whether to use "display", "visibility", or "offsets". See setVisible.

Returns

:Ext.dom.Element

this

statics Ext.Class
protected pro

Get the reference to the class from which this object was instantiated. Note that unlike Ext.Base#self, this.statics() is scope-independent and it always returns the class from which it was called, regardless of what this points to during run-time

Ext.define('My.Cat', {
    statics: {
        totalCreated: 0,
        speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
    },

    constructor: function() {
        var statics = this.statics();

        alert(statics.speciesName);     // always equals to 'Cat' no matter what 'this' refers to
                                        // equivalent to: My.Cat.speciesName

        alert(this.self.speciesName);   // dependent on 'this'

        statics.totalCreated++;
    },

    clone: function() {
        var cloned = new this.self();   // dependent on 'this'

        cloned.groupName = this.statics().speciesName;   // equivalent to: My.Cat.speciesName

        return cloned;
    }
});


Ext.define('My.SnowLeopard', {
    extend: 'My.Cat',

    statics: {
        speciesName: 'Snow Leopard'     // My.SnowLeopard.speciesName = 'Snow Leopard'
    },

    constructor: function() {
        this.callParent();
    }
});

var cat = new My.Cat();                 // alerts 'Cat', then alerts 'Cat'

var snowLeopard = new My.SnowLeopard(); // alerts 'Cat', then alerts 'Snow Leopard'

var clone = snowLeopard.clone();
alert(Ext.getClassName(clone));         // alerts 'My.SnowLeopard'
alert(clone.groupName);                 // alerts 'Cat'

alert(My.Cat.totalCreated);             // alerts 3

Returns

:Ext.Class

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.

swapCls ( firstClass, secondClass, flag, prefix ) : Mixed
chainable ch private pri

Parameters

firstClass :  String

secondClass :  String

flag :  Boolean

prefix :  String

Returns

:Mixed

synchronize
chainable ch private pri

Returns

:

toggle Ext.dom.Element
chainable ch

Toggles the element's visibility, depending on visibility mode.

Returns

:Ext.dom.Element

this

toggleCls ( className ) : Ext.dom.Element

Toggles the specified CSS class on this element (removes it if it already exists, otherwise adds it).

Parameters

className :  String

The CSS class to toggle.

Returns

:Ext.dom.Element

this

translatePoints ( x, [y] ) : Object

Translates the passed page coordinates into left/top css values for the element

Parameters

x :  Number/Array

The page x or an array containing [x, y]

y :  Number (optional)

The page y, required if x is not an array

Returns

:Object

An object with left and top properties. e.g. {left: (value), top: (value)}

translateXY ( x, [y] ) : Object
private pri

Translates the passed page coordinates into x and y css values for the element

Parameters

x :  Number/Array

The page x or an array containing [x, y]

y :  Number (optional)

The page y, required if x is not an array

Returns

:Object

An object with x and y properties. e.g. {x: (value), y: (value)}

un ( eventName, fn, [scope], [options], [order] )

Alias for removeListener. Removes an event handler.

Parameters

eventName :  String/String[]/Object

The type of event the handler was associated with.

fn :  Function/String

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 addListener or the listener will not be removed.

options :  Object (optional)

Extra options object. See addListener for details.

order :  String (optional)

The order of the listener to remove. Possible values are before, current and after.

Defaults to: 'current'

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

Alias for removeAfterListener. 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] )

Alias for removeBeforeListener. 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.

up ( selector, [limit], [returnDom] ) : Ext.dom.Element

. Walks up the dom looking for a parent node that matches the passed simple selector (e.g. 'div.some-class' or 'span:first-child'). This is a shortcut for findParentNode() that always returns an Ext.dom.Element.

Parameters

selector :  String

The simple selector to test. See Ext.dom.Query for information about simple selectors.

limit :  Number/String/HTMLElement/Ext.dom.Element (optional)

The max depth to search as a number or an element which causes the upward traversal to stop and is not considered for inclusion as the result. (defaults to 50 || document.documentElement)

returnDom :  Boolean (optional)

True to return the DOM node instead of Ext.dom.Element

Defaults to: false

Returns

:Ext.dom.Element

The matching DOM node (or null if no match was found)

update ( html )
deprecated dep

Sets the innerHTML of this element.

Parameters

html :  String

The new HTML.

Deprecated since version 5.0.0
Please use setHtml instead.

wrap ( [config], [returnDom], [selector] ) : HTMLElement/Ext.dom.Element

Creates and wraps this element with another element

Parameters

config :  Object (optional)

DomHelper element config object for the wrapper element or null for an empty div

returnDom :  Boolean (optional)

True to return the raw DOM element instead of Ext.dom.Element

Defaults to: false

selector :  String (optional)

A CSS selector to select a descendant node within the created element to use as the wrapping element.

Returns

:HTMLElement/Ext.dom.Element

The newly created wrapper element

Static Methods

addConfig ( config, [mixinClass] )
static sta private pri

Adds new config properties to this class. This is called for classes when they are declared, then for any mixins that class may define and finally for any overrides defined that target the class.

Parameters

config :  Object

mixinClass :  Class (optional)

The mixin class if the configs are from a mixin.

addInheritableStatics ( members ) :
chainable ch static sta private pri

Parameters

members :  Object

Returns

:

addMember ( name, member ) :
chainable ch static sta private pri

Parameters

name :  Object

member :  Object

Returns

:

addMembers ( members, [isStatic], [privacy] ) :
chainable ch static sta

Add methods / properties to the prototype of this class.

Ext.define('My.awesome.Cat', {
    constructor: function() {
        ...
    }
});

 My.awesome.Cat.addMembers({
     meow: function() {
        alert('Meowww...');
     }
 });

 var kitty = new My.awesome.Cat();
 kitty.meow();

Parameters

members :  Object

The members to add to this class.

isStatic :  Boolean (optional)

Pass true if the members are static.

Defaults to: false

privacy :  Boolean (optional)

Pass true if the members are private. This only has meaning in debug mode and only for methods.

Defaults to: false

Returns

:

addStatics ( members ) : Ext.Base
chainable ch static sta

Add / override static properties of this class.

Ext.define('My.cool.Class', {
    ...
});

My.cool.Class.addStatics({
    someProperty: 'someValue',      // My.cool.Class.someProperty = 'someValue'
    method1: function() { ... },    // My.cool.Class.method1 = function() { ... };
    method2: function() { ... }     // My.cool.Class.method2 = function() { ... };
});

Parameters

members :  Object

Returns

:Ext.Base

this

addUnits ( size, units ) : String
static sta private pri

Test if size has a unit, otherwise appends the passed unit string, or the default for this Element.

Parameters

size :  Object

The size to set.

units :  String

The units to append to a numeric size value.

Returns

:String

borrow ( fromClass, members ) : Ext.Base
static sta private pri

Borrow another class' members to the prototype of this class.

Ext.define('Bank', {
    money: '$$$',
    printMoney: function() {
        alert('$$$$$$$');
    }
});

Ext.define('Thief', {
    ...
});

Thief.borrow(Bank, ['money', 'printMoney']);

var steve = new Thief();

alert(steve.money); // alerts '$$$'
steve.printMoney(); // alerts '$$$$$$$'

Parameters

fromClass :  Ext.Base

The class to borrow members from

members :  Array/String

The names of the members to borrow

Returns

:Ext.Base

this

callParent ( args )
static sta protected pro

Parameters

args :  Object

callSuper ( args )
static sta protected pro

Parameters

args :  Object

create Object
static sta

Create a new instance of this Class.

Ext.define('My.cool.Class', {
    ...
});

My.cool.Class.create({
    someConfig: true
});

All parameters are passed to the constructor of the class.

Returns

:Object

the created instance.

createAlias ( alias, origin )
static sta

Create aliases for existing prototype methods. Example:

Ext.define('My.cool.Class', {
    method1: function() { ... },
    method2: function() { ... }
});

var test = new My.cool.Class();

My.cool.Class.createAlias({
    method3: 'method1',
    method4: 'method2'
});

test.method3(); // test.method1()

My.cool.Class.createAlias('method5', 'method3');

test.method5(); // test.method3() -> test.method1()

Parameters

alias :  String/Object

The new method name, or an object to set multiple aliases. See flexSetter

origin :  String/Object

The original method name

extend ( parentClass )
static sta private pri

Parameters

parentClass :  Object

fly ( dom, named ) : Ext.dom.Element
static sta

Gets the globally shared flyweight Element, with the passed node as the active element. Do not store a reference to this element - the dom node can be overwritten by other code. Ext#fly is alias for Ext.dom.Element#fly.

Use this to make one-time references to DOM elements which are not going to be accessed again either by application code, or by Ext's classes. If accessing an element which will be processed regularly, then Ext.get will be more appropriate to take advantage of the caching provided by the Ext.dom.Element class.

If this method is called with and id or element that has already been cached by a previous call to Ext.get() it will return the cached Element instead of the flyweight instance.

Parameters

dom :  String/HTMLElement

The DOM node or id.

named :  Object

Returns

:Ext.dom.Element

The shared Element object (or null if no matching element was found).

fromPoint ( x, y ) : String
static sta

Returns the top Element that is located at the passed coordinates

Parameters

x :  Number

The x coordinate

y :  Number

The y coordinate

Returns

:String

The found Element

get ( element ) : Ext.dom.Element
static sta

Retrieves Ext.dom.Element objects. Ext#get is alias for Ext.dom.Element#get.

This method does not retrieve Ext.Components. This method retrieves Ext.dom.Element objects which encapsulate DOM elements. To retrieve a Component by its ID, use Ext.ComponentManager#get.

When passing an id, it should not include the # character that is used for a css selector.

// For an element with id 'foo'
Ext.get('foo'); // Correct
Ext.get('#foo'); // Incorrect

Uses simple caching to consistently return the same object. Automatically fixes if an object was recreated with the same id via AJAX or DOM.

Parameters

element :  String/HTMLElement/Ext.dom.Element

The id of the node, a DOM Node or an existing Element.

Returns

:Ext.dom.Element

The Element object (or null if no matching element was found).

getActiveElement HTMLElement
static sta

Returns the active element in the DOM. If the browser supports activeElement on the document, this is returned. If not, the focus is tracked and the active element is maintained internally.

Returns

:HTMLElement

The active (focused) element in the document.

getConfigurator Ext.Configurator
static sta private pri

Returns the Ext.Configurator for this class.

Returns

:Ext.Configurator

getDocumentHeight Number
static sta

Retrieves the document height

Returns

:Number

documentHeight

getDocumentWidth Number
static sta

Retrieves the document width

Returns

:Number

documentWidth

getName String
static sta

Get the current class' name in string format.

Ext.define('My.cool.Class', {
    constructor: function() {
        alert(this.self.getName()); // alerts 'My.cool.Class'
    }
});

My.cool.Class.getName(); // 'My.cool.Class'

Returns

:String

className

getOrientation String
static sta

Retrieves the current orientation of the window. This is calculated by determining if the height is greater than the width.

Returns

:String

Orientation of window: 'portrait' or 'landscape'

getViewportHeight Number
static sta

Retrieves the viewport height of the window.

Returns

:Number

viewportHeight

getViewportWidth Number
static sta

Retrieves the viewport width of the window.

Returns

:Number

viewportWidth

getViewSize Object
static sta

Retrieves the viewport size of the window.

Returns

:Object

object containing width and height properties

mixin ( name, mixinClass ) :
chainable ch static sta private pri

Used internally by the mixins pre-processor

Parameters

name :  Object

mixinClass :  Object

Returns

:

normalize ( prop ) : String
static sta

Normalizes CSS property keys from dash delimited to camel case JavaScript Syntax. For example:

  • border-width -> borderWidth
  • padding-top -> paddingTop

Parameters

prop :  String

The property to normalize

Returns

:String

The normalized string

onExtended ( fn, scope ) :
chainable ch static sta private pri

Parameters

fn :  Object

scope :  Object

Returns

:

override ( members ) : Ext.Base
chainable ch static sta

Override members of this class. Overridden methods can be invoked via 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

parseBox ( box ) : Object
static sta

Parses a number or string representing margin sizes into an object. Supports CSS-style margin declarations (e.g. 10, "10", "10 10", "10 10 10" and "10 10 10 10" are all valid options and would return the same result)

Parameters

box :  Number/String

The encoded margins

Returns

:Object

An object with margin sizes for top, right, bottom and left containing the unit

parseStyles ( styles ) : Object
static sta

Converts a CSS string into an object with a property for each style.

The sample code below would return an object with 2 properties, one for background-color and one for color.

var css = 'background-color: red; color: blue;';
console.log(Ext.dom.Element.parseStyles(css));

Parameters

styles :  String

A CSS string

Returns

:Object

styles

query ( selector, [asDom], [root] ) : HTMLElement[]/Ext.dom.Element[]
static sta

Selects child nodes of a given root based on the passed CSS selector. For details on selectors see method-query.

Parameters

selector :  String

The CSS selector.

asDom :  Boolean (optional)

false to return an array of Ext.dom.Element

Defaults to: true

root :  HTMLElement/String (optional)

The root element of the query or id of the root

Returns

:HTMLElement[]/Ext.dom.Element[]

An Array of elements that match the selector. If there are no matches, an empty Array is returned.

select ( selector, [composite], [root] ) : Ext.dom.CompositeElementLite/Ext.dom.CompositeElement
static sta

Selects elements based on the passed CSS selector to enable Ext.dom.Element methods to be applied to many related elements in one statement through the returned Ext.dom.CompositeElementLite object.

Parameters

selector :  String/HTMLElement[]

The CSS selector or an array of elements

composite :  Boolean (optional)

Return a CompositeElement as opposed to a CompositeElementLite. Defaults to false.

Defaults to: false

root :  HTMLElement/String (optional)

The root element of the query or id of the root

Returns

:Ext.dom.CompositeElementLite/Ext.dom.CompositeElement

serializeForm ( form ) : String
static sta

Serializes a DOM form into a url encoded string

Parameters

form :  Object

The form

Returns

:String

The url encoded form

triggerExtended
static sta private pri

unitizeBox ( box, units ) : String
static sta

Parses a number or string representing margin sizes into an object. Supports CSS-style margin declarations (e.g. 10, "10", "10 10", "10 10 10" and "10 10 10 10" are all valid options and would return the same result)

Parameters

box :  Number/String/Object

The encoded margins, or an object with top, right,

units :  String

The type of units to add

Returns

:String

An string with unitized (px if units is not specified) metrics for top, right, bottom and left

events

doubletap ( event, node, options, eOpts )

Fires when there is a double tap.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

longpress ( event, node, options, eOpts )

Fires when you touch and hold still for more than 1 second.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

painted ( this, 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

this :  Ext.dom.Element

The component instance.

eOpts : Object

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

pinch ( event, node, options, eOpts )

Fires continuously when there is pinching (the touch must move for this to be fired).

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

pinchend ( event, node, options, eOpts )

Fires when a pinch has ended.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

pinchstart ( event, node, options, eOpts )

Fired once when a pinch has started.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

resize ( this, 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

this :  Ext.dom.Element

The component instance.

eOpts : Object

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

rotate ( event, node, options, eOpts )

Fires continuously when there is rotation (the touch must move for this to be fired). When listening to this, ensure you know about the Ext.event.Event#angle and Ext.event.Event#rotation properties in the event object.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

rotateend ( event, node, options, eOpts )

Fires when a rotation event has ended.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

rotatestart ( event, node, options, eOpts )

Fired once when a rotation has started.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

singletap ( event, node, options, eOpts )

Fires when there is a single tap.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

swipe ( event, node, options, eOpts )

Fires when there is a swipe When listening to this, ensure you know about the Ext.event.Event#direction property in the event object.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

taphold ( event, node, options, eOpts )

Fires when you touch and hold still for more than 1 second.

Parameters

event :  Ext.event.Event

The Ext.event.Event event encapsulating the DOM event.

node :  HTMLElement

The target of the event.

options :  Object

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

eOpts : Object

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

Ext JS 5.0.0