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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 6.7.0 - Classic Toolkit


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Ext.layout.component.Dock alias: layout.dock private

Hierarchy

Inherited Mixins

Ext.mixin.Factoryable

NOTE: This is a private utility class for internal use by the framework. Don't rely on its existence.

Summary

This ComponentLayout handles docking for Panels. It takes care of panels that are part of a ContainerLayout that sets this Panel's size and Panels that are part of an AutoContainerLayout in which this panel get his height based of the CSS or its content.

No members found using the current filters

configs

Optional Configs

animatePolicy : Object
protected pro

An object that contains as keys the names of the properties that can be animated by child items as a consequence of a layout. This config is used internally by the Ext.layout.container.Accordion layout to cause the child panels to animate to their proper size and position after a collapse/expand event.

Available since: 4.1.0

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:

true

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

$configTransforms : Object / Array
private pri

A prototype-chained object storing transform method names and priorities stored on the class prototype. On first instantiation, this object is converted into an array that is sorted by priority and stored on the constructor.

Defaults to:

{}

borderCollapseMap
private pri

This object is indexed by a component's baseCls to yield another object which is then indexed by the component's ui to produce an array of CSS class names. This array is indexed in the same manner as the noBorderClassTable and indicates the a particular edge of a docked item or the body element is actually "collapsed" with the component's outer border.

Defaults to:

{}

clearPropertiesOnDestroy : Boolean / "async"
protected pro

Setting this property to false will prevent nulling object references on a Class instance after destruction. Setting this to "async" will delay the clearing for approx 50ms.

Defaults to:

true

Available since: 6.2.0

clearPrototypeOnDestroy : Boolean
private pri

Setting this property to true will result in setting the object's prototype to null after the destruction sequence is fully completed. After that, most attempts at calling methods on the object instance will result in "method not defined" exception. This can be very helpful with tracking down otherwise hard to find bugs like runaway Ajax requests, timed functions not cleared on destruction, etc.

Note that this option can only work in browsers that support Object.setPrototypeOf method, and is only available in debugging mode.

Defaults to:

false

Available since: 6.2.0

destroyed : Boolean
protected pro

This property is set to true after the destroy method is called.

Defaults to:

false

done : Boolean

Used only during a layout run, this value indicates that a layout has finished its calculations. This flag is set to true prior to the call to calculate and should be set to false if this layout has more work to do.

factoryConfig : Object

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

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

isLayout : Boolean
readonly ro

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

Defaults to:

true

needsItemSize
private pri

true if this layout may need to incorporate the dimensions of individual child items into its layout calculations. Layouts that handle the size of their children as a group (autocontainer, form) can set this to false for an additional performance optimization. When false the layout system will not recurse into the child items if Ext.layout.container.Container#activeItemCount is 0, which will be the case if all child items use "liquid" CSS layout, e.g. form fields. (See Ext.Component#liquidLayout)

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

setsItemSize
private pri

true if this layout may set the size of its child items. Layouts that do not set the size of their child items (autocontainer, form) can set this to false for an additional performance optimization. When true the layout system will not create a context item for children that use liquid layout, because there is no need for a context item if item size is neither read nor set by the owning layout.

Defaults to:

true

Static Properties

$onExtended
static sta private pri

Defaults to:

[]

methods

Instance Methods

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

afterCollapse ( owner, animated )
private pri

Called by an owning Panel after the Panel finishes its collapse process.

Parameters

owner :  Object

animated :  Object

afterExpand ( owner, animated )
private pri

Called by an owning Panel after the Panel finishes its expand process.

Parameters

owner :  Object

animated :  Object

afterRemove ( item )
protected pro

Removes layout's itemCls and owning Container's itemCls. Clears the managed dimensions flags

Parameters

item :  Object

beginLayout ( ownerContext )

Called before any calculation cycles to prepare for layout.

This is a write phase and DOM reads should be strictly avoided when overridding this method.

Parameters

ownerContext :  Ext.layout.ContextItem

The context item for the layout's owner component.

beginLayoutCycle ( ownerContext )

Called before any calculation cycles to reset DOM values and prepare for calculation.

This is a write phase and DOM reads should be strictly avoided when overridding this method.

Parameters

ownerContext :  Ext.layout.ContextItem

The context item for the layout's owner component.

calculate ( ownerContext )
abstract abs

Called to perform the calculations for this layout. This method will be called at least once and may be called repeatedly if the done property is cleared before return to indicate that this layout is not yet done. The done property is always set to true before entering this method.

This is a read phase and DOM writes should be strictly avoided in derived classes. Instead, DOM writes need to be written to Ext.layout.ContextItem objects to be flushed at the next opportunity.

Parameters

ownerContext :  Ext.layout.ContextItem

The context item for the layout's owner component.

callOverridden ( args ) : Object
deprecated dep protected pro

Call the original method that was previously overridden with Ext.Base#override

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.callOverridden();

        alert("Meeeeoooowwww");
    }
});

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

Parameters

args :  Array/Arguments

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

Returns

:Object

Returns the result of calling the overridden method

Deprecated since version 4.1.0
Use method-callParent instead.

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 and private methods.

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

     // privates: {
     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',

     // privates: {
     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 method-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 method-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

completeLayout ( ownerContext )

This method (if implemented) is called at the end of the cycle in which this layout completes (by not setting done to false in calculate). It is possible for the layout to complete and yet become invalid before the end of the cycle, in which case, this method will not be called. It is also possible for this method to be called and then later the layout becomes invalidated. This will result in calculate being called again, followed by another call to this method.

This is a read phase and DOM writes should be strictly avoided in derived classes. Instead, DOM writes need to be written to Ext.layout.ContextItem objects to be flushed at the next opportunity.

This method need not be implemented by derived classes and, in fact, should only be implemented when needed.

Parameters

ownerContext :  Ext.layout.ContextItem

The context item for the layout's owner component.

configureItem ( item, pos )
protected pro

We are overriding the Ext.layout.Layout configureItem method to also add a class that indicates the position of the docked item. We use the itemCls (x-docked) as a prefix. An example of a class added to a dock: right item is x-docked-right

Parameters

item :  Ext.Component

The item we are configuring

pos :  Object

createAxis ( ownerContext, contentSize, sizeModel, axisProps, collapsedAxis )
private pri

Creates an axis object given the particulars. The process starts by placing the dockedItems in an idealized box where this method is called once for each side. The ideal box is defined by the CSS3 border and padding values (which account for the influence of border-radius). The origin (the (0,0) point) of the ideal box is the top-left edge of the border or the border-box. Normal dockedItems are placed inside this box at an offset to clear the border and padding and sit properly in the panel next to the body.

The origin has to be started differently if the axis is in shrinkWrap mode. When shrink-wrapping an axis, the axis starts at the edge of the body and expands outwards as items are docked. This means the ideal (0,0) for shrinkWrap is on the top-left corner of the body.

The following diagram illustrates this using the vertical axis.

 +---------------------------+ 10px (border)
 |                           |
 |  xxxxxxxxxxxxxxxxxxxxxxx  | 5px (padding)   shrinkWrap    other
 |  +=====================+  |                   -50         15
 |  |  Header             |  | 30px
 |  |                     |  |
 |  +=====================+  |
 |  +---------------------+  |                   -20         45
 |  |  tbar               |  | 20 px
 |  +---------------------+  |
 |  +---------------------+  |                   0           65
 |  |  Body               |  | 100px
 |  |                     |  |
 |  |                     |  |
 |  +---------------------+  |
 |  +---------------------+  |                   100         165
 |  |  bbar               |  | 15px
 |  +---------------------+  |
 |  xxxxxxxxxxxxxxxxxxxxxxx  | 5px
 |                           |
 +---------------------------+ 10px

These are sufficient to determine sizes of things, but to finalize this process and assign proper positions, the tentative coordinates have to be adjusted by an amount appropriate for the item. Because dockedItems are position:absolute, they sit inside the border and so must be adjusted for padding. The body is different because it is position:relative and so it naturally sits inside the padding and the padding must not be included in its position.

Headers and footers that use ignoreParentFrame interact with this process by moving themselves outside the border and padding. So in the above diagram, the Header would move up by 15px and everything else would move up by 10px. When shrinkWrap is taking place, the 10px of border on the top is removed from the height as well.

The bbar behaves slightly different when it is ignoreParentFrame. In shrinkWrap mode, it alone would move down by the padding and the bottom border would not be included in the height. Otherwise, the bbar would be moved down 15px (since the edge is fixed) and the next dockedItem would be placed at, or the body would be stretched down to, 5px (padding) pixels above the bbar.

Parameters

ownerContext :  Object

contentSize :  Object

sizeModel :  Object

axisProps :  Object

collapsedAxis :  Object

destroy
protected pro

Destroys this layout. This method removes a targetCls from the target element and calls onDestroy.

A derived class can override either this method or onDestroy but in all cases must call the base class versions of these methods to allow the base class to perform its cleanup.

This method (or onDestroy) are overridden by subclasses most often to purge event handlers or remove unmanged DOM nodes.

destroyMembers ( args )

Destroys member properties by name.

If a property name is the name of a config, the getter is not invoked, so if the config has not been initialized, nothing will be done.

The property will be destroyed, and the corrected name (if the property is a config and config names are prefixed) will set to null in this object's dictionary.

Parameters

args :  String...

One or more names of the properties to destroy and remove from the object.

dockChild ( ownerContext, axis, backward, forward )
private pri

Docks a child item on the specified axis. This boils down to determining if the item is docked at the "beginning" of the axis ("left" if horizontal, "top" if vertical), the "end" of the axis ("right" if horizontal, "bottom" if vertical) or stretches along the axis ("top" or "bottom" if horizontal, "left" or "right" if vertical). It also has to differentiate between fixed and shrinkWrap sized dimensions.

Parameters

ownerContext :  Object

axis :  Object

backward :  Object

forward :  Object

dockInwardBegin ( ownerContext, itemContext, item, axis )
private pri

Docks an item on a fixed-size axis at the "beginning". The "beginning" of the horizontal axis is "left" and the vertical is "top". For a fixed-size axis, the size works from the outer element (the panel) towards the body.

Parameters

ownerContext :  Object

itemContext :  Object

item :  Object

axis :  Object

dockInwardEnd ( ownerContext, itemContext, item, axis )
private pri

Docks an item on a fixed-size axis at the "end". The "end" of the horizontal axis is "right" and the vertical is "bottom".

Parameters

ownerContext :  Object

itemContext :  Object

item :  Object

axis :  Object

dockOutwardBegin ( ownerContext, itemContext, item, axis )
private pri

Docks an item on a shrinkWrap axis at the "beginning". The "beginning" of the horizontal axis is "left" and the vertical is "top". For a shrinkWrap axis, the size works from the body outward to the outermost element (the panel).

During the docking process, coordinates are allowed to be negative. We start with the body at (0,0) so items docked "top" or "left" will simply be assigned negative x/y. In the finishPositions method these are corrected and framing is added. This way the correction is applied as a simple translation of delta x/y on all coordinates to bring the origin back to (0,0).

Parameters

ownerContext :  Object

itemContext :  Object

item :  Object

axis :  Object

dockOutwardEnd ( ownerContext, itemContext, item, axis )
private pri

Docks an item on a shrinkWrap axis at the "end". The "end" of the horizontal axis is "right" and the vertical is "bottom".

Parameters

ownerContext :  Object

itemContext :  Object

item :  Object

axis :  Object

dockStretch ( ownerContext, itemContext, item, axis )
private pri

Docks an item that might stretch across an axis. This is done for dock "top" and "bottom" items on the horizontal axis and dock "left" and "right" on the vertical.

Parameters

ownerContext :  Object

itemContext :  Object

item :  Object

axis :  Object

finalizeLayout ( ownerContext )

This method (if implemented) is called after all layouts have completed. In most ways this is similar to completeLayout. This call can cause this (or any layout) to be become invalid (see Ext.layout.Context#invalidate), but this is best avoided. This method is intended to be where final reads are made and so it is best to avoid invalidating layouts at this point whenever possible. Even so, this method can be used to perform final checks that may require all other layouts to be complete and then invalidate some results.

This is a read phase and DOM writes should be strictly avoided in derived classes. Instead, DOM writes need to be written to Ext.layout.ContextItem objects to be flushed at the next opportunity.

This method need not be implemented by derived classes and, in fact, should only be implemented when needed.

Parameters

ownerContext :  Ext.layout.ContextItem

The context item for the layout's owner component.

finishAxis ( ownerContext, axis ) : Boolean
private pri

Finishes the calculation of an axis by determining its size. In non-shrink-wrap cases, this is also where we set the body size.

Parameters

ownerContext :  Object

axis :  Object

Returns

:Boolean

finishConstraints ( ownerContext, horz, vert ) : Boolean
private pri

Finishes processing of each axis by applying the min/max size constraints.

Parameters

ownerContext :  Object

horz :  Object

vert :  Object

Returns

:Boolean

finishPositions ( ownerContext, horz, vert )
private pri

Finishes the calculation by setting positions on the body and all of the items.

Parameters

ownerContext :  Object

horz :  Object

vert :  Object

finishedLayout ( ownerContext )

This method is called after all layouts are complete and their calculations flushed to the DOM. No further layouts will be run and this method is only called once per layout run. The base component layout caches lastComponentSize.

This is a write phase and DOM reads should be avoided if possible when overridding this method.

This method need not be implemented by derived classes and, in fact, should only be implemented when needed.

Parameters

ownerContext :  Ext.layout.ContextItem

The context item for the layout's owner component.

getBorderCollapseTable
private pri

Returns the array of class names to add to a docked item or body element when for the edges that should collapse with the outer component border. Basically, the panel's outer border must look visually like a contiguous border but may need to be realized by using the border of docked items and/or the body. This class name allows the border color and width to be controlled accordingly and distinctly from the border of the docked item or body element when it is not having its border collapsed.

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

ifInitialized :  Boolean (optional)

true to only return the initialized property value, not the raw config value, and not to trigger initialization. Returns undefined if the property has not yet been initialized.

Defaults to: false

Returns

:Object

The config property value.

getDockCls ( dock ) : String
private pri

Get's the css class name for a given dock position.

Parameters

dock :  String

top, right, bottom, or left

Returns

:String

getDockedItems ( [order], [beforeBody] ) : Ext.Component[]
protected pro

Retrieve an ordered and/or filtered array of all docked Components.

Parameters

order :  String (optional)

The desired ordering of the items ('render' or 'visual').

Defaults to: 'render'

beforeBody :  Boolean (optional)

An optional flag to limit the set of items to only those before the body (true) or after the body (false). All components are returned by default.

Returns

:Ext.Component[]

An array of components.

getInitialConfig ( [name] ) : Object/Mixed

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

Given this example Ext.button.Button definition and instance:

Ext.define('MyApp.view.Button', {
    extend: 'Ext.button.Button',
    xtype: 'mybutton',

    scale: 'large',
    enableToggle: true
});

var btn = Ext.create({
    xtype: 'mybutton',
    renderTo: Ext.getBody(),
    text: 'Test Button'
});

Calling btn.getInitialConfig() would return an object including the config options passed to the create method:

xtype: 'mybutton',
renderTo: // The document body itself
text: 'Test Button'

Calling btn.getInitialConfig('text')returns 'Test Button'.

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.

getItemLayoutEl ( item ) : HTMLElement
private pri

For a given item, returns the element that participates in the childNodes array of the layout's target element. This is usually the component's "el", but can also be a wrapper

Parameters

item :  Ext.Component

Returns

:HTMLElement

getItemSizePolicy ( item ) : Ext.layout.SizePolicy
protected pro

Returns an object describing how this layout manages the size of the given component. This method must be implemented by any layout that manages components.

Parameters

item :  Ext.Component

Returns

:Ext.layout.SizePolicy

An object describing the sizing done by the layout for this item.

getLayoutItems Array
protected pro

Returns an array containing all the visible docked items inside this layout's owner Panel

Returns

:Array

An array containing all the visible docked items of the Panel

getRenderTarget Ext.dom.Element

Returns the element into which rendering must take place. Defaults to the owner Component's encapsulating element.

May be overridden in Component layout managers which implement an inner element.

Returns

:Ext.dom.Element

getTarget Ext.dom.Element

Returns the owner component's resize element.

Returns

:Ext.dom.Element

hasConfig ( name )
private pri

Parameters

name :  String

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

initLayout
protected pro

A one-time initialization method called just before rendering.

invalidateAxes ( ownerContext, horz, vert )

The default weighting of docked items produces this arrangement:

 +--------------------------------------------+
 |                    Top 1                   |
 +--------------------------------------------+
 |                    Top 2                   |
 +-----+-----+--------------------+-----+-----+
 |     |     |                    |     |     |
 |     |     |                    |     |     |
 |     |     |                    |  R  |  R  |
 |  L  |  L  |                    |  I  |  I  |
 |  E  |  E  |                    |  G  |  G  |
 |  F  |  F  |                    |  H  |  H  |
 |  T  |  T  |                    |  T  |  T  |
 |     |     |                    |     |     |
 |  2  |  1  |                    |  1  |  2  |
 |     |     |                    |     |     |
 |     |     |                    |     |     |
 +-----+-----+--------------------+-----+-----+
 |                  Bottom 1                  |
 +--------------------------------------------+
 |                  Bottom 2                  |
 +--------------------------------------------+

So when we are shrinkWrapDock on the horizontal, the stretch size for top/bottom docked items is the final axis size. For the vertical axis, however, the stretch

Parameters

ownerContext :  Object

horz :  Object

vert :  Object

isValidParent ( item, target, position ) : Boolean
protected pro

Validates item is in the proper place in the dom.

Parameters

item :  Object

target :  Object

position :  Object

Returns

:Boolean

moveItem ( item, target, position )
private pri

Moves Component to the provided target instead.

Parameters

item :  Object

target :  Object

position :  Object

notifyOwner ( ownerContext )

This method (if implemented) is called after all layouts are finished, and all have a lastComponentSize cached. No further layouts will be run and this method is only called once per layout run. It is the bookend to beginLayout.

This is a write phase and DOM reads should be avoided if possible when overridding this method. This is the catch-all tail method to a layout and so the rules are more relaxed. Even so, for performance reasons, it is best to avoid reading the DOM. If a read is necessary, consider implementing a finalizeLayout method to do the required reads.

This method need not be implemented by derived classes and, in fact, should only be implemented when needed.

Parameters

ownerContext :  Ext.layout.ContextItem

The context item for the layout's owner component.

onContentChange ( child ) : Boolean

This method is called when a child item changes in some way. By default this calls updateLayout on this layout's owner.

Parameters

child :  Ext.Component

The child item that has changed.

Returns

:Boolean

True if this layout has handled the content change.

renderChildren
private pri

Used to render in the correct order, top/left before bottom/right

renderItem ( item, target, position )
private pri

Renders the given Component into the target Element.

Parameters

item :  Ext.Component

The Component to render

target :  Ext.dom.Element

The target Element

position :  Number

The position within the target to render the item to

renderItems ( items, target )
protected pro

Render the top and left docked items before any existing DOM nodes in our render target and then render the right and bottom docked items after. This is important, for such things as tab stops and ARIA readers, that the DOM nodes are in a meaningful order.

Our collection of docked items will already be ordered via Panel.getDockedItems().

Parameters

items :  Object

target :  Object

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

setOwner ( owner )
private pri

Sets the layout owner

Parameters

owner :  Object

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();

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


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

        statics.totalCreated++;
    },

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

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

watchConfig ( name, fn, scope )
private pri

Watches config properties.

 instance.watchConfig({
     title: 'onTitleChange',
     scope: me
 });

Available since: 6.7.0

Parameters

name :  Object

fn :  Object

scope :  Object

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 :  Ext.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

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

getConfigurator Ext.Configurator
static sta private pri

Returns the Ext.Configurator for this class.

Returns

:Ext.Configurator

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

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

Used internally by the mixins pre-processor

Parameters

name :  Object

mixinClass :  Object

Returns

:

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

triggerExtended
static sta private pri

Ext JS 6.7.0 - Classic Toolkit