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API 0.9.5
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Sends messages (CPNotification) between objects. More...
#import <CPNotificationCenter.h>
Instance Methods | |
(void) | - addObserver:selector:name:object: |
(id) | - init |
(void) | - postNotification: |
(void) | - postNotificationName:object: |
(void) | - postNotificationName:object:userInfo: |
(void) | - removeObserver: |
(void) | - removeObserver:name:object: |
Class Methods | |
(CPNotificationCenter) | + defaultCenter |
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.
- (void) addObserver: | (id) | anObserver | |
selector: | (SEL) | aSelector | |
name: | (CPString) | aNotificationName | |
object: | (id) | anObject | |
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
.
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 |
Returns the application's notification center
Definition at line 48 of file CPNotificationCenter.j.
- (id) init |
Definition at line 56 of file CPNotificationCenter.j.
- (void) postNotification: | (CPNotification) | aNotification |
Posts a notification to all observers that match the specified notification's name and object.
aNotification | the notification being posted |
CPInvalidArgumentException | if aNotification is nil |
Definition at line 135 of file CPNotificationCenter.j.
- (void) postNotificationName: | (CPString) | aNotificationName | |
object: | (id) | anObject | |
Posts a new notification with the specified name and object.
aNotificationName | the name of the notification |
anObject | the associated object |
Definition at line 159 of file CPNotificationCenter.j.
- (void) postNotificationName: | (CPString) | aNotificationName | |
object: | (id) | anObject | |
userInfo: | (CPDictionary) | aUserInfo | |
Posts a new notification with the specified name, object, and dictionary.
aNotificationName | the name of the notification name |
anObject | the associated object |
aUserInfo | the associated dictionary |
Definition at line 149 of file CPNotificationCenter.j.
- (void) removeObserver: | (id) | anObserver |
Unregisters the specified observer from all notifications.
anObserver | the observer to unregister |
Definition at line 97 of file CPNotificationCenter.j.
- (void) removeObserver: | (id) | anObserver | |
name: | (CPString) | aNotificationName | |
object: | (id) | anObject | |
Unregisters the specified observer from notifications matching the specified name and/or object.
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 114 of file CPNotificationCenter.j.