/* 
 * Adium is the legal property of its developers, whose names are listed in the copyright file included
 * with this source distribution.
 * 
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation; either version 2 of the License,
 * or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 * Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program; if not,
 * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
#import <Cocoa/Cocoa.h>

@class AIListObject, AIListContact;

//Observer which receives notifications of changes in list object status
@protocol AIListObjectObserver
- (NSSet *)updateListObject:(AIListObject *)inObject keys:(NSSet *)inModifiedKeys silent:(BOOL)silent;
@end

@interface AIContactObserverManager : NSObject {
	//Status and Attribute updates
	NSMutableSet			*contactObservers;
	NSMutableSet			*removedContactObservers;
	NSTimer					*delayedUpdateTimer;
	NSInteger				quietDelayedUpdatePeriodsRemaining;
	
	
	NSInteger				delayedStatusChanges;
	NSMutableSet			*delayedModifiedStatusKeys;
	NSInteger				delayedAttributeChanges;
	NSMutableSet			*delayedModifiedAttributeKeys;

	BOOL					updatesAreDelayedUntilInactivity;
	NSMutableSet			*changedObjects;
	
	BOOL						informingObservers;
	NSInteger				delayedContactChanges;
	NSInteger				delayedUpdateRequests;
}

+ (AIContactObserverManager *)sharedManager;
- (void)registerListObjectObserver:(id <AIListObjectObserver>)inObserver;
- (void)unregisterListObjectObserver:(id)inObserver;
- (void)updateAllListObjectsForObserver:(id <AIListObjectObserver>)inObserver;
- (void)updateContacts:(NSSet *)contacts forObserver:(id <AIListObjectObserver>)inObserver;
- (void)delayListObjectNotifications;
- (void)endListObjectNotificationsDelay;
- (void)endListObjectNotificationsDelaysImmediately;
- (void)delayListObjectNotificationsUntilInactivity;
- (BOOL)shouldDelayUpdates;
- (void)listObjectStatusChanged:(AIListObject *)inObject modifiedStatusKeys:(NSSet *)inModifiedKeys silent:(BOOL)silent;
- (void)listObjectAttributesChanged:(AIListObject *)inObject modifiedKeys:(NSSet *)inModifiedKeys;
- (void)updateListContactStatus:(AIListContact *)inContact;

- (void)_updateAllAttributesOfObject:(AIListObject *)inObject;

- (void)noteContactChanged:(AIListObject *)inObject;

@end
