/**
 * Copyright: Copyright (c) 2009 Jacob Carlborg.
 * Authors: Jacob Carlborg
 * Version: Initial created: Aug 3, 2009 
 * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0)
 */
module dstep.foundation.NSKeyValueObserving;

import dstep.foundation.NSArray;
import dstep.foundation.NSIndexSet;
import dstep.foundation.NSSet;
import dstep.foundation.NSString;
import dstep.objc.bridge.Bridge;
import dstep.objc.objc : id;

import bindings = dstep.foundation.NSKeyValueObserving_bindings;

alias NSUInteger NSKeyValueObservingOptions;
alias NSUInteger NSKeyValueChange;
alias NSUInteger NSKeyValueSetMutationKind;

const NSString NSKeyValueChangeKindKey;
const NSString NSKeyValueChangeNewKey;
const NSString NSKeyValueChangeOldKey;
const NSString NSKeyValueChangeIndexesKey;
const NSString NSKeyValueChangeNotificationIsPriorKey;

enum
{
	NSKeyValueObservingOptionNew = 0x01,
	NSKeyValueObservingOptionOld = 0x02,
	NSKeyValueObservingOptionInitial = 0x04,
	NSKeyValueObservingOptionPrior = 0x08
}

enum
{
	NSKeyValueChangeSetting = 1,
	NSKeyValueChangeInsertion = 2,
	NSKeyValueChangeRemoval = 3,
	NSKeyValueChangeReplacement = 4
}

enum
{
	NSKeyValueUnionSetMutation = 1,
	NSKeyValueMinusSetMutation = 2,
	NSKeyValueIntersectSetMutation = 3,
	NSKeyValueSetSetMutation = 4
}

static this ()
{
	NSKeyValueChangeKindKey = new NSString(bindings.NSKeyValueChangeKindKey);
	NSKeyValueChangeNewKey = new NSString(bindings.NSKeyValueChangeNewKey);
	NSKeyValueChangeOldKey = new NSString(bindings.NSKeyValueChangeOldKey);
	NSKeyValueChangeIndexesKey = new NSString(bindings.NSKeyValueChangeIndexesKey);
	NSKeyValueChangeNotificationIsPriorKey = new NSString(bindings.NSKeyValueChangeNotificationIsPriorKey);
}

template TNSKeyValueObserverNotification ()
{
	void willChangeValueForKey (NSString key);
	void didChangeValueForKey (NSString key);
	void willChange (uint changeKind, NSIndexSet indexes, NSString key);
	void didChange (uint changeKind, NSIndexSet indexes, NSString key);
	void willChangeValueForKey (NSString key, uint mutationKind, NSSet objects);
	void didChangeValueForKey (NSString key, uint mutationKind, NSSet objects);
}

template TNSKeyValueObservingCustomization ()
{
	static NSSet keyPathsForValuesAffectingValueForKey (NSString key);
	static bool automaticallyNotifiesObserversForKey (NSString key);
	void setObservationInfo (void* observationInfo);
	void* observationInfo ();
}

template TNSKeyValueObserverRegistration ()
{
	void addObserver (NSObject observer, NSString keyPath, uint options, void* context)
	{
		return invokeObjcSelf!(void, "addObserver:forKeyPath:options:context:", NSObject, NSString, uint, void*)(observer, keyPath, options, context);
	}

	void removeObserver (NSObject observer, NSString keyPath)
	{
		return invokeObjcSelf!(void, "removeObserver:forKeyPath:", NSObject, NSString)(observer, keyPath);
	}
}

template TNSDeprecatedKeyValueObservingCustomization ()
{
	static void setKeys (NSArray keys, NSString dependentKey);
}

template TNSKeyValueObserving ()
{
	void observeValueForKeyPath (NSString keyPath, Object object, NSDictionary change, void* context);
}