Add key combo support

Limelight/Input/KeyboardSupport.m

@@ -248,6 +248,9 @@
             case UIKeyboardHIDUsageKeyboardRightAlt:
                 keyCode = 0xA5;
                 break;
+            case UIKeyboardHIDUsageKeyboardErrorUndefined:
+                NSLog(@"Undefined key pressed");
+                return false;
             case 669: // This value corresponds to the "Globe" or "Language" key on most Apple branded iPad keyboards.
                 keyCode = 0x1B; // This value corresponds to "Escape", which is missing from most Apple branded iPad keyboards.
                 break;

Limelight/Input/StreamView.h

@@ -15,6 +15,10 @@
 
 - (void) userInteractionBegan;
 - (void) userInteractionEnded;
+- (void) streamExitRequested;
+- (void) toggleStatsOverlay;
+- (void) toggleMouseCapture;
+- (void) toggleMouseVisible;
 
 @end
 

Limelight/Input/StreamView.m

@@ -64,12 +64,15 @@ static const double X1_MOUSE_SPEED_DIVISOR = 2.5;
     UIHoverGestureRecognizer *stylusHoverRecognizer;
 #endif
     CGFloat HeightViewLiftedTo;
+    
+    UIKeyModifierFlags comboKeyModifierFlags;
 }
 
 - (void) setupStreamView:(ControllerSupport*)controllerSupport
      interactionDelegate:(id<UserInteractionDelegate>)interactionDelegate
                   config:(StreamConfiguration*)streamConfig
  streamFrameTopLayerView:(UIView* )topLayerView{
+    self->comboKeyModifierFlags = (UIKeyModifierControl|UIKeyModifierAlternate|UIKeyModifierShift);
 
     self->streamFrameTopLayerView = topLayerView;
     self.streamFrameTopLayerView = topLayerView; // this will be used as a read-only pointer for other class
@@ -755,11 +758,34 @@ static const double X1_MOUSE_SPEED_DIVISOR = 2.5;
     else if(![onScreenControls handleTouchMovedEvent:touches]) [touchHandler touchesMoved:touches withEvent:event];
 }
 
+- (void) handleKeyCombos:(UIPress*) press{
+    if(press.key.modifierFlags != comboKeyModifierFlags){
+        return;
+    }
+    switch (press.key.keyCode) {
+        case UIKeyboardHIDUsageKeyboardQ:
+            [interactionDelegate streamExitRequested];
+            break;
+        case UIKeyboardHIDUsageKeyboardS:
+            [interactionDelegate toggleStatsOverlay];
+            break;
+        case UIKeyboardHIDUsageKeyboardM:
+            [interactionDelegate toggleMouseCapture];
+            break;
+        case UIKeyboardHIDUsageKeyboardC:
+            [interactionDelegate toggleMouseVisible];
+            break;
+        default:
+            break;
+    }
+}
+
 - (void)pressesBegan:(NSSet<UIPress *> *)presses withEvent:(UIPressesEvent *)event {
     BOOL handled = NO;
     
     if (@available(iOS 13.4, tvOS 13.4, *)) {
         for (UIPress* press in presses) {
+            [self handleKeyCombos:press];
             // For now, we'll treated it as handled if we handle at least one of the
             // UIPress events inside the set.
             if ([KeyboardSupport sendKeyEventForPress:press down:YES]) {

Limelight/ViewControllers/StreamFrameViewController.m

@@ -936,6 +936,44 @@
 #endif
 }
 
+- (void)toggleStatsOverlay{
+    DataManager* dataMan = [[DataManager alloc] init];
+    Settings *currentSettings = [dataMan retrieveSettings];
+    
+    currentSettings.statsOverlay = !currentSettings.statsOverlay;
+    
+    [dataMan saveData];
+    [self reConfigStreamViewRealtime];
+}
+
+- (void)toggleMouseCapture{
+    DataManager* dataMan = [[DataManager alloc] init];
+    Settings *currentSettings = [dataMan retrieveSettings];
+    
+    if(currentSettings.mouseMode.intValue == 0){
+        currentSettings.mouseMode = @1;
+    }else{
+        currentSettings.mouseMode = @0;
+    }
+    
+    [dataMan saveData];
+    [self reConfigStreamViewRealtime];
+}
+
+- (void)toggleMouseVisible{
+    DataManager* dataMan = [[DataManager alloc] init];
+    Settings *currentSettings = [dataMan retrieveSettings];
+    
+    if(currentSettings.mouseMode.intValue == 2){
+        currentSettings.mouseMode = @1;
+    }else{
+        currentSettings.mouseMode = @2;
+    }
+    
+    [dataMan saveData];
+    [self reConfigStreamViewRealtime];
+}
+
 #if !TARGET_OS_TV
 // Require a confirmation when streaming to activate a system gesture
 - (UIRectEdge)preferredScreenEdgesDeferringSystemGestures {