#import "PreferenceController.h"

PreferenceController *preferenceController;

@implementation PreferenceController

- (void)awakeFromNib
{
	[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowWillClose:)
						name:@"NSWindowWillCloseNotification" object:NSApp];

	/* Set the required information for all preference sections. */
	preferenceItems = [[NSDictionary dictionaryWithObjects:
						
					[NSArray arrayWithObjects: 
						[NSArray arrayWithObjects:@"preference_general", generalController, local(@"General"), nil], 
						[NSArray arrayWithObjects:@"preference_display", displayController, local(@"Display"), nil], 
						[NSArray arrayWithObjects:@"preference_environment", environmentController, local(@"Environment"), nil], 
						[NSArray arrayWithObjects:@"preference_keys", keysController, local(@"SSH Keys"), nil], 
						[NSArray arrayWithObjects:@"preference_tunnels", tunnelsController, local(@"Tunnels"), nil], 
						[NSArray arrayWithObjects:@"preference_security", securityController, local(@"Security"), nil], 
						nil 
					] 
					
				forKeys:

					[NSArray arrayWithObjects: 
						@"General",  
						@"Display", 
						@"Environment", 
						@"SSH Keys", 
						@"Tunnels", 
						@"Security", 
						nil 
					] 
	] retain];

	/* Define the precedence of the sections. */
	preferenceItemsKeys = [[NSArray arrayWithObjects:@"General", @"Display", @"SSH Keys", @"Tunnels", @"Security", @"Environment", nil] retain];

	blankView = [[[[NSView alloc] init] autorelease] retain];

	toolbar = [[NSToolbar alloc] initWithIdentifier:@"preferenceToolbar"];
	[toolbar setDelegate:self];
	[toolbar setAllowsUserCustomization:NO];
	[toolbar setAutosavesConfiguration:NO];
	[window setToolbar:[toolbar autorelease]];
	
	[self switchToView:@"General"];

	[[NSColorPanel sharedColorPanel] setShowsAlpha:YES];
}

+ (id)preferenceController
{
	if(preferenceController == NULL)
	{
		preferenceController = [[PreferenceController alloc] init];
		[NSBundle loadNibNamed:@"Preferences" owner:preferenceController];
	}
	
	return(preferenceController);
}

+ (void)openPreferencesWindow
{
	if(preferenceController == NULL)
	{
		preferenceController = [[PreferenceController alloc] init];
		[NSBundle loadNibNamed:@"Preferences" owner:preferenceController];
	}
	
	[NSApp activateIgnoringOtherApps:YES];
	[preferenceController showWindow];
}

- (void)showWindow
{
	[window makeKeyAndOrderFront:self];
}

- (NSWindow *)window
{
	return window;
}

- (void)resizeWindowToSize:(NSSize)size
{
	NSRect frame, contentRect;
	float toolbarHeight, newHeight;
	
	/* Determine the toolbar height. */
	contentRect = [NSWindow contentRectForFrameRect:[window frame] styleMask:[window styleMask]];
	toolbarHeight = (NSHeight(contentRect) - NSHeight([[window contentView] frame]));
	
	newHeight = size.height;

	frame = [NSWindow contentRectForFrameRect:[window frame] styleMask:[window styleMask]];
	
	frame.origin.y += frame.size.height;
	frame.origin.y -= newHeight + toolbarHeight;
	frame.size.height = newHeight + toolbarHeight;
	frame.size.width = 475;
	
	frame = [NSWindow frameRectForContentRect:frame styleMask:[window styleMask]];
	
	[window setFrame:frame display:YES animate:YES];
}

/* Switch to a preference section from a toolbar. Calls switchToView. */
- (void)switchToViewFromToolbar:(NSToolbarItem *)item
{
	[self switchToView:[item itemIdentifier]];
}

/* Switch to a preference section. */
- (void)switchToView:(NSString *)identifier
{
	NSArray *array;

	if(((array = [preferenceItems objectForKey:identifier])) && ([array count] > 1)) 
	{
		if(([array objectAtIndex:1]) && (currentController != [array objectAtIndex:1]))
       		{
			[currentController closePreferences];

			currentController = [array objectAtIndex:1];

			[window setContentView:blankView];
			[window setTitle:[NSString stringWithFormat:@"%@ - %@", local(@"Preferences"), [array objectAtIndex:2]]];
			[self resizeWindowToSize:[currentController viewSize]];

			[toolbar setSelectedItemIdentifier:identifier];
			[window setContentView:[currentController view]];

			[currentController loadPreferences];
		}
	}
}

- (void)windowWillClose:(NSNotification *)notification
{
	if([notification object] == window)
	{
		[currentController closePreferences];
	}
}

/* Toolbar Delegates. */

/* Initialize the items. */
- (NSToolbarItem *)toolbar:(NSToolbar *)toolbar itemForItemIdentifier:(NSString *)itemIdentifier willBeInsertedIntoToolbar:(BOOL)flag
{
	NSArray *array;

	if((array = [preferenceItems objectForKey:itemIdentifier])) 
	{
		NSToolbarItem *item = [[NSToolbarItem alloc] initWithItemIdentifier:itemIdentifier];

		[item setLabel:[array objectAtIndex:2]];
		[item setPaletteLabel:[array objectAtIndex:2]];
		[item setImage:[NSImage imageNamed:[array objectAtIndex:0]]];
		[item setTarget:self];
		[item setAction:@selector(switchToViewFromToolbar:)];

		return [item autorelease];
	}
	
	return nil;
}

/* Return the allowed item identifiers. */
- (NSArray *)toolbarAllowedItemIdentifiers:(NSToolbar *)toolbar
{
	return preferenceItemsKeys;
}

/* Return the default item identifiers. */
- (NSArray *)toolbarDefaultItemIdentifiers:(NSToolbar *)toolbar
{
	return preferenceItemsKeys;
}

/* Return the selectable item identifiers (>10.3). */
- (NSArray*)toolbarSelectableItemIdentifiers:(NSToolbar *)toolbar
{
	return preferenceItemsKeys;
}

@end