/**
 * Copyright: Copyright (c) 2009 Jacob Carlborg.
 * Authors: Jacob Carlborg
 * Version: Initial created: Sep 24, 2009 
 * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0)
 */
module dstep.appkit.NSNib;

import dstep.appkit.AppKitDefines;
import dstep.foundation.NSArray;
import dstep.foundation.NSBundle;
import dstep.foundation.NSCoder;
import dstep.foundation.NSData;
import dstep.foundation.NSDictionary;
import dstep.foundation.NSObject;
import dstep.foundation.NSString;
import dstep.foundation.NSURL;
import dstep.objc.bridge.Bridge;
import dstep.objc.objc;

import bindings = dstep.appkit.NSNib_bindings;

private
{
	NSString NSNibOwner_;
	NSString NSNibTopLevelObjects_;
}

NSString NSNibOwner ()
{
	if (NSNibOwner_)
		return NSNibOwner_;

	return NSNibOwner_ = new NSString(bindings.NSNibOwner);
}

NSString NSNibTopLevelObjects ()
{
	if (NSNibTopLevelObjects_)
		return NSNibTopLevelObjects_;

	return NSNibTopLevelObjects_ = new NSString(bindings.NSNibTopLevelObjects);
}

class NSNib : NSObject, INSCoding
{
	mixin (ObjcWrap);
	
	this (NSCoder aDecoder)
	{
		super(typeof(this).alloc.initWithCoder(aDecoder).objcObject);
	}
	
	void encodeWithCoder (NSCoder aCoder)
	{
		return invokeObjcSelf!(void, "encodeWithCoder:", NSCoder)(aCoder);
	}
	
	typeof(this) initWithCoder (NSCoder aDecoder)
	{
		return invokeObjcSelf!(typeof(this), "initWithCoder:", NSCoder)(aDecoder);
	}

	NSNib initWithContentsOfURL (NSURL nibFileURL)
	{
		id result = invokeObjcSelf!(id, "initWithContentsOfURL:", NSURL)(nibFileURL);
		return result is this.objcObject ? this : (result !is null ? new NSNib(result) : null);
	}

	this (NSURL nibFileURL)
	{
		super(NSNib.alloc.initWithContentsOfURL(nibFileURL).objcObject);
	}

	NSNib initWithNibNamed (NSString nibName, NSBundle bundle)
	{
		id result = invokeObjcSelf!(id, "initWithNibNamed:bundle:", NSString, NSBundle)(nibName, bundle);
		return result is this.objcObject ? this : (result !is null ? new NSNib(result) : null);
	}

	this (NSString nibName, NSBundle bundle)
	{
		super(NSNib.alloc.initWithNibNamed(nibName, bundle).objcObject);
	}

	bool instantiateNibWithExternalNameTable (NSDictionary externalNameTable)
	{
		return invokeObjcSelf!(bool, "instantiateNibWithExternalNameTable:", NSDictionary)(externalNameTable);
	}

	bool instantiateNibWithOwner (Object owner, ref NSArray topLevelObjects)
	{
		id objects;
		
		if (topLevelObjects)
			objects = topLevelObjects.objcObject;
		
		bool result = invokeObjcSelf!(bool, "instantiateNibWithOwner:topLevelObjects:", Object, id*)(owner, &objects);
		
		if (objects)
			topLevelObjects = new NSArray(objects);
		
		return result;
	}
}