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Package: | Ext |
Defined In: | ComponentMgr.js |
Class: | ComponentMgr |
Extends: | Object |
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.
Property | Defined By | |
---|---|---|
all : MixedCollection The MixedCollection used internally for the component cache. An example usage may be subscribing to
-events on the Mix... The MixedCollection used internally for the component cache. An example usage may be subscribing to
-events on the MixedCollection to monitor addition or removal. Read-only. | ComponentMgr |
Method | Defined By | |
---|---|---|
create( Object config , Constructor defaultType )
- :
- Ext.ComponentCreates 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:
| ComponentMgr | |
createPlugin( Object config , Constructor defaultType )
- :
- Ext.ComponentCreates a new Plugin from the specified config object using the
-config object's ptype to determine the class to insta... Creates a new Plugin from the specified config object using the
-config object's ptype to determine the class to instantiate. Parameters:
| ComponentMgr | |
get( String id )
- :
- Ext.ComponentReturns a component by id.
-For additional details see Ext.util.MixedCollection.get. Returns a component by id.
-For additional details see Ext.util.MixedCollection.get. Parameters:
| ComponentMgr | |
isRegistered( Ext.Component xtype )
- :
- BooleanChecks if a Component type is registered. Checks if a Component type is registered. Parameters:
| ComponentMgr | |
onAvailable( String id , Function fn , Object scope )
- :
- voidRegisters a function that will be called when a Component with the specified id is added to ComponentMgr. This will h... Registers a function that will be called when a Component with the specified id is added to ComponentMgr. This will happen on instantiation. Parameters:
| ComponentMgr | |
register( Ext.Component c )
- :
- voidRegisters a component. Registers a component. Parameters:
| ComponentMgr | |
registerPlugin( String ptype , Constructor cls )
- :
- voidRegisters a new Plugin constructor, keyed by a new
-Ext.Component.ptype.
-Use this method (or its alias Ext.preg) to re... Registers a new Plugin constructor, keyed by a new -Ext.Component.ptype. -Use this method (or its alias Ext.preg) to register new -plugins for Ext.Components so that lazy instantiation may be used when specifying -Plugins. Parameters:
| ComponentMgr | |
registerType( String xtype , Constructor cls )
- :
- voidRegisters a new Component constructor, keyed by a new
-Ext.Component.xtype.
-Use this method (or its alias Ext.reg) to ... Registers a new Component constructor, keyed by a new -Ext.Component.xtype. -Use this method (or its alias Ext.reg) to register new -subclasses of Ext.Component so that lazy instantiation may be used when specifying -child Components. -see Ext.Container.items Parameters:
| ComponentMgr | |
unregister( Ext.Component c )
- :
- voidUnregisters a component. Unregisters a component. Parameters:
| ComponentMgr |