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Hierarchy

Ext.AbstractManager
Ext.ComponentManager

Provides a registry of all Components (instances of Ext.Component or any subclass thereof) on a page so that they can be easily accessed by component id (see get, or the convenience method Ext.getCmp).

This object also provides a registry of available Component classes indexed by a mnemonic code known as the Component's xtype. The xtype provides a way to avoid instantiating child Components when creating a full, nested config object for a complete Ext page.

A child Component may be specified simply as a config object as long as the correct xtype is specified so that if and when the Component needs rendering, the correct type can be looked up for lazy instantiation.

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

Defined By

Properties

 
all : Ext.util.MixedCollection

Contains all of the items currently managed

Contains all of the items currently managed

Defined By

Methods

 
create( Object config, Constructor defaultType) : Ext.Component
Creates a new Component from the specified config object using the config object's xtype to determine the class to in...

Creates a new Component from the specified config object using the config object's xtype to determine the class to instantiate.

Parameters

  • config : Object

    A configuration object for the Component you wish to create.

  • defaultType : Constructor

    The constructor to provide the default Component type if the config object does not contain a xtype. (Optional if the config contains a xtype).

Returns

  • Ext.Component   

    The newly instantiated Component.

 
each( Object fn, Object scope) : void
Executes the specified function once for each item in the collection. Returning false from the function will cease it...

Executes the specified function once for each item in the collection. Returning false from the function will cease iteration.

The paramaters passed to the function are:

  • key : String

    The key of the item

  • value : Number

    The value of the item

  • length : Number

    The total number of items in the collection

Parameters

  • fn : Object

    The function to execute.

  • scope : Object

    The scope to execute in. Defaults to this.

Returns

  • void   
 

Returns an item by id. For additional details see Ext.util.HashMap.get.

Returns an item by id. For additional details see Ext.util.HashMap.get.

Parameters

  • id : String

    The id of the item

Returns

  • Mixed   

    The item, undefined if not found.

 

Gets the number of items in the collection.

Gets the number of items in the collection.

Returns

  • Number   

    The number of items in the collection.

 

Checks if an item type is registered.

Checks if an item type is registered.

Parameters

  • type : String

    The mnemonic string by which the class may be looked up

Returns

  • Boolean   

    Whether the type is registered.

 
onAvailable( String id, Function fn, Object scope) : void
Registers a function that will be called when an item with the specified id is added to the manager. This will happen...

Registers a function that will be called when an item with the specified id is added to the manager. This will happen on instantiation.

Parameters

  • id : String

    The item id

  • fn : Function

    The callback function. Called with a single parameter, the item.

  • scope : Object

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

Returns

  • void   
 

Registers an item to be managed

Registers an item to be managed

Parameters

  • item : Mixed

    The item to register

Returns

  • void   
 
registerType( String type, Constructor cls) : void

Registers a new item constructor, keyed by a type key.

Registers a new item constructor, keyed by a type key.

Parameters

  • type : String

    The mnemonic string by which the class may be looked up.

  • cls : Constructor

    The new instance class.

Returns

  • void   
 

Unregisters an item by removing it from this manager

Unregisters an item by removing it from this manager

Parameters

  • item : Mixed

    The item to unregister

Returns

  • void