Android: Add touch to move pointer in overlay

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/fragments/EmulationFragment.java

@@ -102,14 +102,6 @@ public final class EmulationFragment extends Fragment implements SurfaceHolder.C
     surfaceView.getHolder().addCallback(this);
 
     mInputOverlay = contents.findViewById(R.id.surface_input_overlay);
-    if (mInputOverlay != null)
-    {
-      // If the input overlay was previously disabled, then don't show it.
-      if (!mPreferences.getBoolean("showInputOverlay", true))
-      {
-        mInputOverlay.setVisibility(View.GONE);
-      }
-    }
 
     Button doneButton = contents.findViewById(R.id.done_control_config);
     if (doneButton != null)
@@ -199,18 +191,14 @@ public final class EmulationFragment extends Fragment implements SurfaceHolder.C
     // If the overlay is currently set to INVISIBLE
     if (!mPreferences.getBoolean("showInputOverlay", false))
     {
-      // Set it to VISIBLE
-      mInputOverlay.setVisibility(View.VISIBLE);
       editor.putBoolean("showInputOverlay", true);
     }
     else
     {
-      // Set it to INVISIBLE
-      mInputOverlay.setVisibility(View.GONE);
       editor.putBoolean("showInputOverlay", false);
     }
-
+    editor.commit();
-    editor.apply();
+    mInputOverlay.refreshControls();
   }
 
   public void refreshInputOverlay()

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlay.java

@@ -43,6 +43,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
   private final Set<InputOverlayDrawableButton> overlayButtons = new HashSet<>();
   private final Set<InputOverlayDrawableDpad> overlayDpads = new HashSet<>();
   private final Set<InputOverlayDrawableJoystick> overlayJoysticks = new HashSet<>();
+  private InputOverlayPointer overlayPointer;
 
   private boolean mIsInEditMode = false;
   private InputOverlayDrawableButton mButtonBeingConfigured;
@@ -128,6 +129,8 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
     }
 
     int pointerIndex = event.getActionIndex();
+    // Tracks if any button/joystick is pressed down
+    boolean pressed = false;
 
     for (InputOverlayDrawableButton button : overlayButtons)
     {
@@ -142,6 +145,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
           {
             button.setPressedState(true);
             button.setTrackId(event.getPointerId(pointerIndex));
+            pressed = true;
             NativeLibrary.onGamePadEvent(NativeLibrary.TouchScreenDevice, button.getId(),
                     ButtonState.PRESSED);
           }
@@ -154,6 +158,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
             button.setPressedState(false);
             NativeLibrary.onGamePadEvent(NativeLibrary.TouchScreenDevice, button.getId(),
                     ButtonState.RELEASED);
+            button.setTrackId(-1);
           }
           break;
       }
@@ -166,35 +171,40 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
       {
         case MotionEvent.ACTION_DOWN:
         case MotionEvent.ACTION_POINTER_DOWN:
-        case MotionEvent.ACTION_MOVE:
-          // Up, Down, Left, Right
-          boolean[] pressed = {false, false, false, false};
           // If a pointer enters the bounds of a button, press that button.
           if (dpad.getBounds()
                   .contains((int) event.getX(pointerIndex), (int) event.getY(pointerIndex)))
           {
+            dpad.setTrackId(event.getPointerId(pointerIndex));
+            pressed = true;
+          }
+        case MotionEvent.ACTION_MOVE:
+          if (dpad.getTrackId() == event.getPointerId(pointerIndex))
+          {
+            // Up, Down, Left, Right
+            boolean[] dpadPressed = {false, false, false, false};
+
             if (dpad.getBounds().top + (dpad.getHeight() / 3) > (int) event.getY(pointerIndex))
-              pressed[0] = true;
+              dpadPressed[0] = true;
             if (dpad.getBounds().bottom - (dpad.getHeight() / 3) < (int) event.getY(pointerIndex))
-              pressed[1] = true;
+              dpadPressed[1] = true;
             if (dpad.getBounds().left + (dpad.getWidth() / 3) > (int) event.getX(pointerIndex))
-              pressed[2] = true;
+              dpadPressed[2] = true;
             if (dpad.getBounds().right - (dpad.getWidth() / 3) < (int) event.getX(pointerIndex))
-              pressed[3] = true;
+              dpadPressed[3] = true;
 
             // Release the buttons first, then press
-            for (int i = 0; i < pressed.length; i++)
+            for (int i = 0; i < dpadPressed.length; i++)
-              if (!pressed[i])
+              if (!dpadPressed[i])
                 NativeLibrary.onGamePadEvent(NativeLibrary.TouchScreenDevice, dpad.getId(i),
                         ButtonState.RELEASED);
             // Press buttons
-            for (int i = 0; i < pressed.length; i++)
+            for (int i = 0; i < dpadPressed.length; i++)
-              if (pressed[i])
+              if (dpadPressed[i])
                 NativeLibrary.onGamePadEvent(NativeLibrary.TouchScreenDevice, dpad.getId(i),
                         ButtonState.PRESSED);
 
-            setDpadState(dpad, pressed[0], pressed[1], pressed[2], pressed[3]);
+            setDpadState(dpad, dpadPressed[0], dpadPressed[1], dpadPressed[2], dpadPressed[3]);
-            dpad.setTrackId(event.getPointerId(pointerIndex));
           }
           break;
         case MotionEvent.ACTION_UP:
@@ -208,6 +218,7 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
               NativeLibrary.onGamePadEvent(NativeLibrary.TouchScreenDevice, dpad.getId(i),
                       ButtonState.RELEASED);
             }
+            dpad.setTrackId(-1);
           }
           break;
       }
@@ -215,7 +226,11 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
 
     for (InputOverlayDrawableJoystick joystick : overlayJoysticks)
     {
-      joystick.TrackEvent(event);
+      if (joystick.TrackEvent(event))
+      {
+        if (joystick.getTrackId() != -1)
+          pressed = true;
+      }
       int[] axisIDs = joystick.getAxisIDs();
       float[] axises = joystick.getAxisValues();
 
@@ -225,6 +240,18 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
       }
     }
 
+    // No button/joystick pressed, safe to move pointer
+    if (!pressed && overlayPointer != null)
+    {
+      overlayPointer.onTouch(event);
+      float[] axises = overlayPointer.getAxisValues();
+
+      NativeLibrary.onGamePadMoveEvent(NativeLibrary.TouchScreenDevice, ButtonType.WIIMOTE_IR + 2,
+              axises[0]);
+      NativeLibrary.onGamePadMoveEvent(NativeLibrary.TouchScreenDevice, ButtonType.WIIMOTE_IR + 4,
+              axises[1]);
+    }
+
     invalidate();
 
     return true;
@@ -617,6 +644,8 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
             getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT ?
                     "-Portrait" : "";
 
+    if (mPreferences.getBoolean("showInputOverlay", true))
+    {
       // Add all the enabled overlay items back to the HashSet.
       if (EmulationActivity.isGameCubeGame() || mPreferences.getInt("wiiController", 3) == 0)
       {
@@ -634,6 +663,10 @@ public final class InputOverlay extends SurfaceView implements OnTouchListener
           addNunchukOverlayControls(orientation);
         }
       }
+    }
+
+    if (!EmulationActivity.isGameCubeGame())
+      overlayPointer = new InputOverlayPointer(this.getContext());
 
     invalidate();
   }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableButton.java

@@ -41,6 +41,7 @@ public final class InputOverlayDrawableButton
   public InputOverlayDrawableButton(Resources res, Bitmap defaultStateBitmap,
           Bitmap pressedStateBitmap, int buttonType)
   {
+    mTrackId = -1;
     mDefaultStateBitmap = new BitmapDrawable(res, defaultStateBitmap);
     mPressedStateBitmap = new BitmapDrawable(res, pressedStateBitmap);
     mButtonType = buttonType;

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableDpad.java

@@ -60,6 +60,7 @@ public final class InputOverlayDrawableDpad
           int buttonUp, int buttonDown,
           int buttonLeft, int buttonRight)
   {
+    mTrackId = -1;
     mDefaultStateBitmap = new BitmapDrawable(res, defaultStateBitmap);
     mPressedOneDirectionStateBitmap = new BitmapDrawable(res, pressedOneDirectionStateBitmap);
     mPressedTwoDirectionsStateBitmap = new BitmapDrawable(res, pressedTwoDirectionsStateBitmap);

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableJoystick.java

@@ -94,10 +94,11 @@ public final class InputOverlayDrawableJoystick
     mBoundsBoxBitmap.draw(canvas);
   }
 
-  public void TrackEvent(MotionEvent event)
+  public boolean TrackEvent(MotionEvent event)
   {
     boolean reCenter = mPreferences.getBoolean("joystickRelCenter", true);
     int pointerIndex = event.getActionIndex();
+    boolean pressed = false;
 
     switch (event.getAction() & MotionEvent.ACTION_MASK)
     {
@@ -105,7 +106,7 @@ public final class InputOverlayDrawableJoystick
       case MotionEvent.ACTION_POINTER_DOWN:
         if (getBounds().contains((int) event.getX(pointerIndex), (int) event.getY(pointerIndex)))
         {
-          mPressedState = true;
+          mPressedState = pressed = true;
           mOuterBitmap.setAlpha(0);
           mBoundsBoxBitmap.setAlpha(255);
           if (reCenter)
@@ -121,6 +122,7 @@ public final class InputOverlayDrawableJoystick
       case MotionEvent.ACTION_POINTER_UP:
         if (trackId == event.getPointerId(pointerIndex))
         {
+          pressed = true;
           mPressedState = false;
           axises[0] = axises[1] = 0.0f;
           mOuterBitmap.setAlpha(255);
@@ -136,7 +138,7 @@ public final class InputOverlayDrawableJoystick
     }
 
     if (trackId == -1)
-      return;
+      return pressed;
 
     for (int i = 0; i < event.getPointerCount(); i++)
     {
@@ -158,6 +160,7 @@ public final class InputOverlayDrawableJoystick
         SetInnerBounds();
       }
     }
+    return pressed;
   }
 
   public boolean onConfigureTouch(MotionEvent event)
@@ -274,4 +277,9 @@ public final class InputOverlayDrawableJoystick
   {
     return mHeight;
   }
+
+  public int getTrackId()
+  {
+    return trackId;
+  }
 }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayPointer.java

@@ -0,0 +1,60 @@
+package org.dolphinemu.dolphinemu.overlay;
+
+import android.app.Activity;
+import android.content.Context;
+import android.util.DisplayMetrics;
+import android.view.Display;
+import android.view.MotionEvent;
+
+public class InputOverlayPointer
+{
+  private final float[] axes = {0f, 0f};
+  private float maxHeight;
+  private float maxWidth;
+  private int trackId = -1;
+
+  public InputOverlayPointer(Context context)
+  {
+    Display display = ((Activity) context).getWindowManager().getDefaultDisplay();
+    DisplayMetrics outMetrics = new DisplayMetrics();
+    display.getMetrics(outMetrics);
+    maxWidth = outMetrics.widthPixels / 2;
+    maxHeight = outMetrics.heightPixels / 2;
+  }
+
+  public boolean onTouch(MotionEvent event)
+  {
+    int pointerIndex = event.getActionIndex();
+
+    switch (event.getAction() & MotionEvent.ACTION_MASK)
+    {
+      case MotionEvent.ACTION_DOWN:
+      case MotionEvent.ACTION_POINTER_DOWN:
+        trackId = event.getPointerId(pointerIndex);
+        break;
+      case MotionEvent.ACTION_UP:
+      case MotionEvent.ACTION_POINTER_UP:
+        if (trackId == event.getPointerId(pointerIndex))
+          trackId = -1;
+        break;
+    }
+
+    if (trackId == -1)
+      return false;
+
+    int x = (int) event.getX(event.findPointerIndex(trackId));
+    int y = (int) event.getY(event.findPointerIndex(trackId));
+    axes[0] = (y - maxHeight) / maxHeight;
+    axes[1] = (x - maxWidth) / maxWidth;
+
+    return false;
+  }
+
+  public float[] getAxisValues()
+  {
+    float[] ir = {0f, 0f};
+    ir[0] = axes[0];
+    ir[1] = axes[1];
+    return axes;
+  }
+}

Source/Core/InputCommon/ControllerInterface/Android/Android.h

@@ -30,6 +30,7 @@ private:
   {
   public:
     std::string GetName() const;
+    bool IsDetectable() override { return false; }
     Axis(int padID, ButtonManager::ButtonType index, float neg = 1.0f)
         : _padID(padID), _index(index), _neg(neg)
     {