Forcibly enable resize corners for external display

SpringBoard.h

@@ -16,6 +16,13 @@
 @property(nonatomic, assign) BOOL requirePointer, requireHardwareKeyboard;
 @end
 
+@interface SBFluidSwitcherItemContainer : UIView
+- (BOOL)isResizingAllowed;
+@end
+
+@interface SBAppResizeGrabberView : UIView
+@end
+
 @interface SBWindowScene : UIWindowScene
 - (BOOL)isExternalDisplayWindowScene;
 @end

TPPrefsObserver.h

@@ -1,5 +1,5 @@
 #import <Foundation/Foundation.h>
 
 @interface TPPrefsObserver : NSObject
-@property(nonatomic, assign) BOOL allowLandscapeHomeScreen, forceEnableMedusaForLandscapeOnlyApps, useiPadAppSwitchingAnimation;
+@property(nonatomic, assign) BOOL allowLandscapeHomeScreen, forceEnableMedusaForLandscapeOnlyApps, hideStageManagerResizeCorners, useiPadAppSwitchingAnimation;
 @end

TPPrefsObserver.m

@@ -5,6 +5,7 @@ - (instancetype)init {
     self = [super init];
     [self observeKey:@"TPAllowLandscapeHomeScreen"];
     [self observeKey:@"TPForceEnableMedusaForLandscapeOnlyApps"];
+    [self observeKey:@"TPHideStageManagerResizeCorners"];
     [self observeKey:@"TPUseiPadAppSwitchingAnimation"];
     // Fetch keys
     [self observeValueForKeyPath:nil ofObject:nil change:nil context:nil];
@@ -23,6 +24,7 @@ - (void)observeValueForKeyPath:(NSString *)
     NSUserDefaults *defaults = NSUserDefaults.standardUserDefaults;
     self.allowLandscapeHomeScreen = [defaults boolForKey:@"TPAllowLandscapeHomeScreen"];
     self.forceEnableMedusaForLandscapeOnlyApps = [defaults boolForKey:@"TPForceEnableMedusaForLandscapeOnlyApps"];
+    self.hideStageManagerResizeCorners = [defaults boolForKey:@"TPHideStageManagerResizeCorners"];
     self.useiPadAppSwitchingAnimation = [defaults boolForKey:@"TPUseiPadAppSwitchingAnimation"];
 }
 @end

TrollPadPrefs/Resources/Root.plist

@@ -42,6 +42,18 @@
 			<key>label</key>
 			<string>Use AirPlay as External Display</string>
 		</dict>
+		<dict>
+			<key>cell</key>
+			<string>PSSwitchCell</string>
+			<key>default</key>
+			<false/>
+			<key>defaults</key>
+			<string>com.apple.springboard</string>
+			<key>key</key>
+			<string>TPHideStageManagerResizeCorners</string>
+			<key>label</key>
+			<string>Hide resize corners</string>
+		</dict>
 		<dict>
 			<key>cell</key>
 			<string>PSGroupCell</string>

TweakSB.x

@@ -214,6 +214,27 @@ static uint16_t forcePadIdiom = 0;
 }
 %end
 
+// Forcibly enable resizable as iOS somehow disabled it in the external display
+%hook SBFluidSwitcherItemContainer
+- (void)setAllowedTouchResizeCorners:(NSUInteger)cornerMask {
+    // !self.isResizingAllowed && 
+    if (self._screen != UIScreen.mainScreen) {
+        %orig(15);
+        // 12 (binary 1100): enable resizing for bottoms
+        // 15 (binary 1111): enable resizing for all corners
+    } else {
+        %orig;
+    }
+}
+%end
+
+%hook SBAppResizeGrabberView
+- (void)setAlpha:(CGFloat)alpha {
+    %orig;
+    self.hidden = pref.hideStageManagerResizeCorners;
+}
+%end
+
 %hook SBFluidSwitcherViewController
 // Use iPadOS app switching animation instead
 - (BOOL)isDevicePad {
@@ -316,7 +337,7 @@ static uint16_t forcePadIdiom = 0;
 // Unlock external display support for MDC versions
 int hookedExtDisplayEnabledFunc() {
     // clang forgets to PAC this function, so we need this ugly line
-    int hack = 0; if (hack) { abort(); }
+    int hack = 0; if (hack) { printf(""); }
 
     return 1;
 }

UIKitPrivate.h

@@ -25,3 +25,7 @@
 @interface UIStatusBar
 - (_UIStatusBar *)statusBar;
 @end
+
+@interface UIView(private)
+- (UIScreen *)_screen;
+@end

control

@@ -1,6 +1,6 @@
 Package: com.kdt.trollpad
 Name: TrollPad
-Version: 1.2.3
+Version: 1.3
 Architecture: iphoneos-arm
 Description: Troll SpringBoard into thinking it's running on iPadOS.
 Maintainer: khanhduytran0