/*
     File: MainViewController.m
 Abstract: The application's main view controller (front page).
  Version: 2.6
 
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 The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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 */

#import "MainViewController.h"

#import "ButtonsViewController.h"
#import "ControlsViewController.h"
#import "TextFieldController.h"
#import "SearchBarController.h"
#import "TextViewController.h"
#import "SegmentViewController.h"
#import "ToolbarViewController.h"
#import "PickerViewController.h"
#import "ImagesViewController.h"
#import "WebViewController.h"
#import "AlertsViewController.h"
#import "TransitionViewController.h"

#import "Constants.h"

static NSString *kCellIdentifier = @"MyIdentifier";
static NSString *kTitleKey = @"title";
static NSString *kViewControllerKey = @"viewController";

@implementation MainViewController

@synthesize menuList;

- (void)viewDidLoad
{	
	[super viewDidLoad];
	
	// construct the array of page descriptions we will use (each description is a dictionary)
	//
	self.menuList = [NSMutableArray array];
	
	// for showing various UIButtons:
	ButtonsViewController *buttonsViewController = [[ButtonsViewController alloc]
														initWithNibName:@"ButtonsViewController" bundle:nil];
	[self.menuList addObject:[NSDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"ButtonsTitle", @""), kTitleKey,
								buttonsViewController, kViewControllerKey,
							  nil]];
	[buttonsViewController release];
	
	// for showing various UIControls:
	ControlsViewController *controlsViewController = [[ControlsViewController alloc]
														initWithNibName:@"ControlsViewController" bundle:nil];
	[self.menuList addObject:[NSDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"ControlsTitle", @""), kTitleKey,
								controlsViewController, kViewControllerKey,
							  nil]];
	[controlsViewController release];
	
	// for showing various UITextFields:
	TextFieldController *textFieldViewController = [[TextFieldController alloc]
														initWithNibName:@"TextFieldController" bundle:nil];
	[self.menuList addObject:[NSDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"TextFieldTitle", @""), kTitleKey,
								textFieldViewController, kViewControllerKey,
							  nil]];
	[textFieldViewController release];
	
	// for UISearchBar:
	SearchBarController *searchBarController = [[SearchBarController alloc]
													initWithNibName:@"SearchBarController" bundle:nil];
	[self.menuList addObject:[NSDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"SearchBarTitle", @""), kTitleKey,
								searchBarController, kViewControllerKey,
							  nil]];
	[searchBarController release];
	
	// for showing UITextView:
	TextViewController *textViewController = [[TextViewController alloc]
												initWithNibName:@"TextViewController" bundle:nil];
	[self.menuList addObject:[NSDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"TextViewTitle", @""), kTitleKey,
								textViewController, kViewControllerKey,
							  nil]];
	[textViewController release];
	
	// for showing various UIPickers:
	PickerViewController *pickerViewController = [[PickerViewController alloc]
													initWithNibName:@"PickerViewController" bundle:nil];
	[self.menuList addObject:[NSDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"PickerTitle", @""), kTitleKey,
								pickerViewController, kViewControllerKey,
							  nil]];
	[pickerViewController release];
	
	// for showing UIImageView:
	ImagesViewController *imagesViewController = [[ImagesViewController alloc]
													initWithNibName:@"ImagesViewController" bundle:nil];
	[self.menuList addObject:[NSDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"ImagesTitle", @""), kTitleKey,
								imagesViewController, kViewControllerKey,
							  nil]];
	[imagesViewController release];	
	
	// for showing UIWebView:
	WebViewController *webViewController = [[WebViewController alloc]
												initWithNibName:@"WebViewController" bundle:nil];
	[self.menuList addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"WebTitle", @""), kTitleKey,
								webViewController, kViewControllerKey,
							  nil]];
	[webViewController release];	
	
	// for showing various UISegmentedControls:
	SegmentViewController *segmentViewController = [[SegmentViewController alloc]
														initWithNibName:@"SegmentViewController" bundle:nil];
	[self.menuList addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"SegmentTitle", @""), kTitleKey,
								segmentViewController, kViewControllerKey,
							  nil]];
	[segmentViewController release];
	
	// for showing various UIBarButtonItem items inside a UIToolbar:
	ToolbarViewController *toolbarViewController = [[ToolbarViewController alloc]
														initWithNibName:@"ToolbarViewController" bundle:nil];
	[self.menuList addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"ToolbarTitle", @""), kTitleKey,
								toolbarViewController, kViewControllerKey,
							  nil]];
	[toolbarViewController release];
	
	// for showing various UIActionSheets and UIAlertViews:
	AlertsViewController *alertsViewController = [[AlertsViewController alloc]
														initWithNibName:@"AlertsViewController" bundle:nil];
	[self.menuList addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"AlertTitle", @""), kTitleKey,
								alertsViewController, kViewControllerKey,
							  nil]];
	[alertsViewController release];
	
	// for showing how to a use flip animation transition between two UIViews:
	TransitionsViewController *transitionsViewController = [[TransitionsViewController alloc]
																initWithNibName:@"TransitionViewController" bundle:nil];
	[self.menuList addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:
								NSLocalizedString(@"TransitionsTitle", @""), kTitleKey,
								transitionsViewController, kViewControllerKey,
							  nil]];
	[transitionsViewController release];
	
	// create a custom navigation bar button and set it to always say "Back"
	UIBarButtonItem *temporaryBarButtonItem = [[UIBarButtonItem alloc] init];
	temporaryBarButtonItem.title = @"Back";
	self.navigationItem.backBarButtonItem = temporaryBarButtonItem;
	[temporaryBarButtonItem release];
}

// called after the view controller's view is released and set to nil.
// For example, a memory warning which causes the view to be purged. Not invoked as a result of -dealloc.
// So release any properties that are loaded in viewDidLoad or can be recreated lazily.
//
- (void)viewDidUnload
{
	[super viewDidUnload];
	
	self.menuList = nil;
}

- (void)dealloc
{
	[menuList release];	
	[super dealloc];
}


#pragma mark -
#pragma mark UIViewController delegate

- (void)viewWillAppear:(BOOL)animated
{
	// this UIViewController is about to re-appear, make sure we remove the current selection in our table view
	NSIndexPath *tableSelection = [self.tableView indexPathForSelectedRow];
	[self.tableView deselectRowAtIndexPath:tableSelection animated:NO];
}


#pragma mark -
#pragma mark UITableViewDelegate

// the table's selection has changed, switch to that item's UIViewController
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
	UIViewController *targetViewController = [[self.menuList objectAtIndex: indexPath.row] objectForKey:kViewControllerKey];
	[[self navigationController] pushViewController:targetViewController animated:YES];
}


#pragma mark -
#pragma mark UITableViewDataSource

// tell our table how many rows it will have, in our case the size of our menuList
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
	return [self.menuList count];
}

// tell our table what kind of cell to use and its title for the given row
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kCellIdentifier];
	if (cell == nil)
	{
		cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCellIdentifier] autorelease];
		cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
	}
	
	cell.textLabel.text = [[self.menuList objectAtIndex:indexPath.row] objectForKey:kTitleKey];

	return cell;
}

@end