ios: Some view management cleanup

ios/RetroArch/RetroArch_iOS.h

@@ -7,8 +7,8 @@
 
 #import <UIKit/UIKit.h>
 
-extern NSString *const GSEventKeyDownNotification;
-extern NSString *const GSEventKeyUpNotification;
+extern NSString* const GSEventKeyDownNotification;
+extern NSString* const GSEventKeyUpNotification;
 
 @interface RetroArch_iOS : UIResponder <UIApplicationDelegate>
 
@@ -16,12 +16,13 @@ extern NSString *const GSEventKeyUpNotification;
 - (void)runGame:(NSString*)path;
 - (void)gameHasExited;
 
+- (void)pushViewController:(UIViewController*)theView;
+- (void)popViewController;
+
 @property (strong, nonatomic) NSString* system_directory;
 @property (strong, nonatomic) NSString* config_file_path;
 
-@property (strong, nonatomic) UIWindow *window;
-@property (strong, nonatomic) NSString *module_path;
-@property (strong, nonatomic) UINavigationController *navigator;
+@property (strong, nonatomic) NSString* module_path;
 @property (strong, nonatomic) UIImage* file_icon;
 @property (strong, nonatomic) UIImage* folder_icon;
 @property (strong, nonatomic) UIBarButtonItem* settings_button;

ios/RetroArch/RetroArch_iOS.m

@@ -23,6 +23,9 @@ extern uint32_t ios_current_touch_count;
 @implementation RetroArch_iOS
 {
    game_view* game;
+   
+   UIWindow* window;
+   UINavigationController* navigator;
 }
 
 + (RetroArch_iOS*)get
@@ -33,18 +36,34 @@ extern uint32_t ios_current_touch_count;
 - (void)runGame:(NSString*)path
 {
    game = [[game_view alloc] initWithGame:path];
-   self.window.rootViewController = game;
-   self.navigator = nil;
+   window.rootViewController = game;
+   navigator = nil;
 }
 
 - (void)gameHasExited
 {
    game = nil;
 
-   self.navigator = [[UINavigationController alloc] init];
-   [self.navigator pushViewController: [[module_list alloc] init] animated:YES];
+   navigator = [[UINavigationController alloc] init];
+   [navigator pushViewController: [[module_list alloc] init] animated:YES];
 
-   self.window.rootViewController = self.navigator;
+   window.rootViewController = navigator;
+}
+
+- (void)pushViewController:(UIViewController*)theView
+{
+   if (navigator != nil)
+   {
+      [navigator pushViewController:theView animated:YES];
+   }
+}
+
+- (void)popViewController
+{
+   if (navigator != nil)
+   {
+      [navigator popViewControllerAnimated:YES];
+   }
 }
 
 - (void)applicationDidFinishLaunching:(UIApplication *)application
@@ -68,12 +87,12 @@ extern uint32_t ios_current_touch_count;
    self.settings_button.action = @selector(show_settings);
 
    // Setup window
-   self.navigator = [[UINavigationController alloc] init];
-   [self.navigator pushViewController: [[module_list alloc] init] animated:YES];
+   navigator = [[UINavigationController alloc] init];
+   [navigator pushViewController: [[module_list alloc] init] animated:YES];
 
-   self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
-   self.window.rootViewController = self.navigator;
-   [self.window makeKeyAndVisible];
+   window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
+   window.rootViewController = navigator;
+   [window makeKeyAndVisible];
    
    // Setup keyboard hack
    [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(keyPressed:) name: GSEventKeyDownNotification object: nil];
@@ -110,7 +129,7 @@ extern uint32_t ios_current_touch_count;
 
 - (void)show_settings
 {
-   [self.navigator pushViewController: [[SettingsList alloc] init] animated:YES];
+   [self pushViewController:[SettingsList new]];
 }
 
 - (void)processTouches:(NSArray*)touches

ios/RetroArch/directory_list.m

@@ -57,9 +57,7 @@ static BOOL is_directory(NSString* path)
 
    if(is_directory(path))
    {
-      [[RetroArch_iOS get].navigator
-         pushViewController:[[directory_list alloc] initWithPath:path]
-         animated:YES];
+      [[RetroArch_iOS get] pushViewController:[[directory_list alloc] initWithPath:path]];
    }
    else
    {

ios/RetroArch/module_list.m

@@ -52,7 +52,7 @@ static void display_error_alert(NSString* message)
 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
 {
    [RetroArch_iOS get].module_path = [modules objectAtIndex:indexPath.row];
-   [[RetroArch_iOS get].navigator pushViewController:[[directory_list alloc] initWithPath:nil] animated:YES];
+   [[RetroArch_iOS get] pushViewController:[[directory_list alloc] initWithPath:nil]];
 }
 
 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

ios/RetroArch/settings/enumeration_list.m

@@ -55,7 +55,7 @@
       value.value = @"";
 
    [view reloadData];
-   [[RetroArch_iOS get].navigator popViewControllerAnimated:YES];
+   [[RetroArch_iOS get] popViewController];
 }
 
 @end

ios/RetroArch/settings/settings_sublist.m

@@ -66,9 +66,7 @@ static const char* const SETTINGID = "SETTING";
    {
       case EnumerationSetting:
       case FileListSetting:
-         [[RetroArch_iOS get].navigator
-            pushViewController:[[SettingEnumerationList alloc] initWithSetting:setting fromTable:(UITableView*)self.view]
-            animated:YES];
+         [[RetroArch_iOS get] pushViewController:[[SettingEnumerationList alloc] initWithSetting:setting fromTable:(UITableView*)self.view]];
          break;
          
       case ButtonSetting:
@@ -76,9 +74,7 @@ static const char* const SETTINGID = "SETTING";
          break;
          
       case GroupSetting:
-         [[RetroArch_iOS get].navigator
-            pushViewController:[[SettingsSubList alloc] initWithSettings:setting.subValues title:setting.label]
-            animated:YES];
+         [[RetroArch_iOS get] pushViewController:[[SettingsSubList alloc] initWithSettings:setting.subValues title:setting.label]];
          break;
          
       default: