CPNotificationCenter Class Reference

Sends messages (CPNotification) between objects. More...

#import <CPNotificationCenter.h>

Inheritance diagram for CPNotificationCenter:

Instance Methods
(void)	- addObserver:selector:name:object:
(id)	- init
(void)	- postNotification:
(void)	- postNotificationName:object:
(void)	- postNotificationName:object:userInfo:
(void)	- removeObserver:
(void)	- removeObserver:name:object:
Instance Methods inherited from CPObject
(void)	- addObserver:forKeyPath:options:context:
(void)	- applyChange:toKeyPath:
(id)	- autorelease
(id)	- awakeAfterUsingCoder:
(void)	- awakeFromCib
(void)	- bind:toObject:withKeyPath:options:
(Class)	- classForCoder
(Class)	- classForKeyedArchiver
(CPString)	- className
(id)	- copy
(void)	- dealloc
(CPString)	- description
(CPDictionary)	- dictionaryWithValuesForKeys:
(void)	- didChange:valuesAtIndexes:forKey:
(void)	- didChangeValueForKey:
(void)	- didChangeValueForKey:withSetMutation:usingObjects:
(void)	- doesNotRecognizeSelector:
(CPArray)	- exposedBindings
(id)	- forwardingTargetForSelector:
(void)	- forwardInvocation:
(unsigned)	- hash
(BOOL)	- implementsSelector:
(CPDictionary)	- infoForBinding:
(BOOL)	- isEqual:
(BOOL)	- isKindOfClass:
(BOOL)	- isMemberOfClass:
(BOOL)	- isProxy
(IMP)	- methodForSelector:
(CPMethodSignature)	- methodSignatureForSelector:
(id)	- mutableArrayValueForKey:
(id)	- mutableArrayValueForKeyPath:
(id)	- mutableCopy
(id)	- mutableSetValueForKey:
(id)	- mutableSetValueForKeyPath:
(id)	- performSelector:
(id)	- performSelector:withObject:
(id)	- performSelector:withObject:withObject:
(id)	- performSelector:withObjects:
(void)	- release
(void)	- removeObserver:forKeyPath:
(id)	- replacementObjectForArchiver:
(id)	- replacementObjectForCoder:
(id)	- replacementObjectForKeyedArchiver:
(BOOL)	- respondsToSelector:
(id)	- retain
(id)	- self
(void)	- setValue:forKey:
(void)	- setValue:forKeyPath:
(void)	- setValue:forUndefinedKey:
(void)	- setValuesForKeysWithDictionary:
(CPString)	- UID
(void)	- unbind:
(Class)	- valueClassForBinding:
(id)	- valueForKey:
(id)	- valueForKeyPath:
(id)	- valueForUndefinedKey:
(void)	- willChange:valuesAtIndexes:forKey:
(void)	- willChangeValueForKey:
(void)	- willChangeValueForKey:withSetMutation:usingObjects:

Class Methods
(CPNotificationCenter)	+ defaultCenter
Class Methods inherited from CPObject
(BOOL)	+ accessInstanceVariablesDirectly
(id)	+ alloc
(id)	+ allocWithCoder:
(BOOL)	+ automaticallyNotifiesObserversForKey:
(Class)	+ class
(void)	+ exposeBinding:
(void)	+ initialize
(IMP)	+ instanceMethodForSelector:
(BOOL)	+ instancesRespondToSelector:
(BOOL)	+ isSubclassOfClass:
(CPSet)	+ keyPathsForValuesAffectingValueForKey:
(void)	+ load
(id)	+ new
(void)	+ setVersion:
(Class)	+ superclass
(int)	+ version

Additional Inherited Members
Instance Variables inherited from CPObject
Class	isa

Detailed Description

Sends messages (CPNotification) between objects.

Cappuccino provides a framework for sending messages between objects within a process called notifications. Objects register with an CPNotificationCenter to be informed whenever other objects post CPNotifications to it matching certain criteria. The notification center processes notifications synchronously – that is, control is only returned to the notification poster once every recipient of the notification has received it and processed it.

Definition at line 2 of file CPNotificationCenter.h.

Method Documentation

- (void) addObserver: (id)  anObserver selector: (SEL)  aSelector name: (CPString)  aNotificationName object: (id)  anObject

implementation

Adds an object as an observer. The observer will receive notifications with the specified name and/or containing the specified object (depending on if they are nil.

Parameters

anObserver	the observing object
aSelector	the message sent to the observer when a notification occurs
aNotificationName	the name of the notification the observer wants to watch
anObject	the object in the notification the observer wants to watch

Definition at line 76 of file CPNotificationCenter.j.

+ (CPNotificationCenter) defaultCenter

implementation

Returns the application's notification center

Definition at line 48 of file CPNotificationCenter.j.

- (id) init

implementation

Initializes the receiver

Returns

the initialized receiver

Reimplemented from CPObject.

Definition at line 56 of file CPNotificationCenter.j.

- (void) postNotification: (CPNotification)  aNotification

implementation

Posts a notification to all observers that match the specified notification's name and object.

Parameters

aNotification

the notification being posted

Exceptions

CPInvalidArgumentException

if aNotification is nil

Definition at line 134 of file CPNotificationCenter.j.

- (void) postNotificationName: (CPString)  aNotificationName object: (id)  anObject

implementation

Posts a new notification with the specified name and object.

Parameters

aNotificationName	the name of the notification
anObject	the associated object

Definition at line 158 of file CPNotificationCenter.j.

- (void) postNotificationName: (CPString)  aNotificationName object: (id)  anObject userInfo: (CPDictionary)  aUserInfo

implementation

Posts a new notification with the specified name, object, and dictionary.

Parameters

aNotificationName	the name of the notification name
anObject	the associated object
aUserInfo	the associated dictionary

Definition at line 148 of file CPNotificationCenter.j.

- (void) removeObserver: (id)  anObserver

implementation

Unregisters the specified observer from all notifications.

Parameters

anObserver

the observer to unregister

Definition at line 96 of file CPNotificationCenter.j.

- (void) removeObserver: (id)  anObserver name: (CPString)  aNotificationName object: (id)  anObject

implementation

Unregisters the specified observer from notifications matching the specified name and/or object.

Parameters

anObserver	the observer to remove
aNotificationName	the name of notifications to no longer watch
anObject	notifications containing this object will no longer be watched

Definition at line 113 of file CPNotificationCenter.j.

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The documentation for this class was generated from the following files:

• Foundation/CPNotificationCenter.h
• Foundation/CPNotificationCenter.j