Fix: replace all currentWindow() with static variable

Natives/SceneDelegate.m

@@ -2,6 +2,8 @@
 #import "ios_uikit_bridge.h"
 #import "utils.h"
 
+extern UIWindow *mainWindow;
+
 @interface SceneDelegate ()
 
 @end
@@ -13,6 +15,7 @@
     UIWindowScene *windowScene = (UIWindowScene *)scene;
     self.window = [[UIWindow alloc] initWithWindowScene:windowScene];
     self.window.frame = windowScene.coordinateSpace.bounds;
+    mainWindow = self.window;
     launchInitialViewController(self.window);
     [self.window makeKeyAndVisible];
 }

Natives/SceneExternalDelegate.m

@@ -2,7 +2,7 @@
 #import "SceneExternalDelegate.h"
 #import "SurfaceViewController.h"
 
-extern UIWindow* currentWindow();
+extern UIWindow *externalWindow;
 
 @interface SceneExternalDelegate ()
 
@@ -15,8 +15,9 @@ extern UIWindow* currentWindow();
     UIWindowScene *windowScene = (UIWindowScene *)scene;
     self.window = [[UIWindow alloc] initWithWindowScene:windowScene];
     self.window.frame = windowScene.coordinateSpace.bounds; 
+    externalWindow = self.window;
     if (SurfaceViewController.isRunning && getPrefBool(@"video.fullscreen_airplay")) {
-        [currentWindow().rootViewController performSelector:@selector(switchToExternalDisplay)];
+        [UIWindow.mainWindow.rootViewController performSelector:@selector(switchToExternalDisplay)];
     }
 }
 
@@ -27,7 +28,7 @@ extern UIWindow* currentWindow();
     // Release any resources associated with this scene that can be re-created the next time the scene connects.
     // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
     if (SurfaceViewController.isRunning && getPrefBool(@"video.fullscreen_airplay")) {
-        [currentWindow().rootViewController performSelector:@selector(switchToInternalDisplay)];
+        [UIWindow.mainWindow.rootViewController performSelector:@selector(switchToInternalDisplay)];
     }
 }
 

Natives/SurfaceViewController+ExternalDisplay.m

@@ -16,7 +16,7 @@
     noteLabel.text = localize(@"game.note.airplay", nil);
     [self.touchView addSubview:noteLabel]; 
 
-    UIWindow *secondWindow = currentWindowInScene(1);
+    UIWindow *secondWindow = UIWindow.externalWindow;
     secondWindow.rootViewController = [[UIViewController alloc] init];
     [secondWindow.rootViewController.view addSubview:self.surfaceView]; 
     [secondWindow.rootViewController.view addSubview:self.mousePointerView];
@@ -29,7 +29,7 @@
     [self.surfaceView removeFromSuperview];
     [self.mousePointerView removeFromSuperview];
 
-    UIWindow *secondWindow = currentWindowInScene(1);
+    UIWindow *secondWindow = UIWindow.externalWindow;
     secondWindow.hidden = YES;
 
     [self.touchView.subviews[0] removeFromSuperview];

Natives/SurfaceViewController.h

@@ -1,4 +1,5 @@
 #import <UIKit/UIKit.h>
+#import "UIKit+hook.h"
 
 #import "customcontrols/ControlLayout.h"
 #import "GameSurfaceView.h"

Natives/SurfaceViewController.m

@@ -1064,7 +1064,7 @@ int touchesMovedCount;
 }
 
 + (BOOL)isRunning {
-    return [currentWindow().rootViewController isKindOfClass:SurfaceViewController.class];
+    return [UIWindow.mainWindow.rootViewController isKindOfClass:SurfaceViewController.class];
 }
 
 + (GameSurfaceView *)surface {

Natives/UIKit+hook.h

@@ -32,6 +32,11 @@
 @property(assign, nonatomic) NSInteger nonEditingLinebreakMode;
 @end
 
+@interface UIWindow(global)
++ (UIWindow *)mainWindow;
++ (UIWindow *)externalWindow;
+@end
+
 /*
 @interface WFTextTokenTextView : UITextField
 @property(nonatomic) NSString* placeholder

Natives/UIKit+hook.m

@@ -4,6 +4,8 @@
 #import "UIKit+hook.h"
 #import "utils.h"
 
+__weak UIWindow *mainWindow, *externalWindow;
+
 void swizzle(Class class, SEL originalAction, SEL swizzledAction) {
     method_exchangeImplementations(class_getInstanceMethod(class, originalAction), class_getInstanceMethod(class, swizzledAction));
 }
@@ -119,6 +121,14 @@ void init_hookUIKitConstructor(void) {
 
 @implementation UIWindow(hook)
 
++ (UIWindow *)mainWindow {
+    return mainWindow;
+}
+
++ (UIWindow *)externalWindow {
+    return externalWindow;
+}
+
 - (UIViewController *)visibleViewController {
     UIViewController *current = self.rootViewController;
     while (current.presentedViewController) {
@@ -144,21 +154,6 @@ void init_hookUIKitConstructor(void) {
 }
 @end
 
-UIWindow* currentWindowInScene(BOOL external) {
-    id delegate = UIApplication.sharedApplication.delegate;
-    for (UIScene *scene in UIApplication.sharedApplication.connectedScenes.allObjects) {
-        if (external != (scene.session.role == UIWindowSceneSessionRoleApplication)) {
-            delegate = scene.delegate;
-            break;
-        }
-    }
-    return [delegate window];
-}
-
-UIWindow* currentWindow() {
-    return currentWindowInScene(0);
-}
-
 UIViewController* currentVC() {
-    return currentWindow().visibleViewController;
+    return UIWindow.mainWindow.visibleViewController;
 }

Natives/customcontrols/ControlJoystick.m

@@ -119,7 +119,7 @@ NSMutableDictionary* createButton(NSString* name, int* keycodes, NSString* dynam
         debugLabel.lineBreakMode = NSLineBreakByWordWrapping;
         debugLabel.numberOfLines = 0;
         debugLabel.userInteractionEnabled = NO;
-        [currentWindow() addSubview:debugLabel];
+        [UIWindow.mainWindow addSubview:debugLabel];
     }
 #endif
 

Natives/input/ControllerInput.m

@@ -211,7 +211,7 @@ BOOL leftShiftHeld;
         deltaX *= deltaTimeScale;
         deltaY *= deltaTimeScale;
 
-        SurfaceViewController *vc = (id)(currentWindow().rootViewController);
+        SurfaceViewController *vc = (id)UIWindow.mainWindow.rootViewController;
         [vc sendTouchPoint:CGPointMake(deltaX, deltaY) withEvent:ACTION_MOVE_MOTION];
     }
     lastFrameTime = frameTime;

Natives/input/GyroInput.m

@@ -62,7 +62,7 @@ static CMMotionManager* cmInstance;
         lastYValue = cmInstance.deviceMotion.rotationRate.y / (M_PI*90) * windowHeight * factor;
     }
 
-    SurfaceViewController *vc = (id)(currentWindow().rootViewController);
+    SurfaceViewController *vc = (id)UIWindow.mainWindow.rootViewController;
     [vc sendTouchPoint:CGPointMake(lastXValue, lastYValue) withEvent:ACTION_MOVE_MOTION];
 
     lastFrameTime = frameTime;

Natives/input_bridge_v3.m

@@ -55,7 +55,7 @@ void openURLGlobal(NSString *path) {
 
     dispatch_async(dispatch_get_main_queue(), ^{
         if ([path hasPrefix:@"http"]) {
-            openLink(currentWindow().rootViewController, [NSURL URLWithString:path]);
+            openLink(UIWindow.mainWindow.rootViewController, [NSURL URLWithString:path]);
             dispatch_group_leave(group);
             return;
         }
@@ -395,7 +395,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_glfw_CallbackBridge_nativeSetGrabbing(JNIE
     isGrabbing = grabbing;
 
     dispatch_async(dispatch_get_main_queue(), ^{
-        SurfaceViewController *vc = ((SurfaceViewController *)currentWindow().rootViewController);
+        SurfaceViewController *vc = ((SurfaceViewController *)UIWindow.mainWindow.rootViewController);
         [vc updateGrabState];
     });
 }

Natives/ios_uikit_bridge.m

@@ -21,7 +21,7 @@ void internal_showDialog(NSString* title, NSString* message) {
     UIAlertAction* okAction = [UIAlertAction actionWithTitle:localize(@"OK", nil) style:UIAlertActionStyleDefault handler:nil];
     [alert addAction:okAction];
 
-    UIWindow *alertWindow = [[UIWindow alloc] initWithWindowScene:currentWindow().windowScene];
+    UIWindow *alertWindow = [[UIWindow alloc] initWithWindowScene:UIWindow.mainWindow.windowScene];
     alertWindow.frame = UIScreen.mainScreen.bounds;
     alertWindow.rootViewController = [UIViewController new];
     alertWindow.windowLevel = 1000;
@@ -128,7 +128,7 @@ void UIKit_returnToSplitView() {
     // Researching memory-safe ways to return from SurfaceViewController to the split view
     // so that the app doesn't close when quitting the game (similar behaviour to Android)
     dispatch_async(dispatch_get_main_queue(), ^{
-        UIWindow *window = currentWindow();
+        UIWindow *window = UIWindow.mainWindow;
 
         // Return from JavaGUIViewController
         if ([window.rootViewController isKindOfClass:LauncherSplitViewController.class]) {

Natives/utils.h

@@ -65,8 +65,6 @@ void init_setupMultiDir();
 
 BOOL PLPatchMachOPlatformForFile(const char *path);
 
-UIWindow* currentWindow();
-UIWindow* currentWindowInScene(BOOL external);
 UIViewController* currentVC();
 void openLink(UIViewController* sender, NSURL* link);