Merge "Migrate Tap exclusion logic to TaskEmbedder." into rvc-dev am: 73cc6b8f47 am: 9eeb721848 am: edb5fb4b6d am: aee0fb8ecd

Change-Id: Ib5f923d2198d7a4f6d8ecafcc713d48688a3ec30

core/java/android/window/TaskEmbedder.java

@@ -36,11 +36,14 @@ import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.Region;
 import android.hardware.display.VirtualDisplay;
+import android.os.RemoteException;
 import android.os.UserHandle;
 import android.view.IWindow;
 import android.view.IWindowManager;
+import android.view.IWindowSession;
 import android.view.KeyEvent;
 import android.view.SurfaceControl;
+import android.view.WindowManagerGlobal;
 
 import dalvik.system.CloseGuard;
 
@@ -184,31 +187,45 @@ public abstract class TaskEmbedder {
 
     /**
      * Called when the task embedder should be initialized.
+     * NOTE: all overriding methods should call this one after they finish their initialization.
      * @return whether to report whether the embedder was initialized.
      */
-    public abstract boolean onInitialize();
+    public boolean onInitialize() {
+        updateLocationAndTapExcludeRegion();
+        return true;
+    }
 
     /**
      * Called when the task embedder should be released.
      * @return whether to report whether the embedder was released.
      */
-    protected abstract boolean onRelease();
+    protected boolean onRelease() {
+        // Clear tap-exclude region (if any) for this window.
+        clearTapExcludeRegion();
+        return true;
+    }
 
     /**
      * Starts presentation of tasks in this container.
      */
-    public abstract void start();
+    public void start() {
+        updateLocationAndTapExcludeRegion();
+    }
 
     /**
      * Stops presentation of tasks in this container.
      */
-    public abstract void stop();
+    public void stop() {
+        clearTapExcludeRegion();
+    }
 
     /**
      * This should be called whenever the position or size of the surface changes
      * or if touchable areas above the surface are added or removed.
      */
-    public abstract void notifyBoundsChanged();
+    public void notifyBoundsChanged() {
+        updateLocationAndTapExcludeRegion();
+    }
 
     /**
      * Called to update the dimensions whenever the host size changes.
@@ -267,6 +284,48 @@ public abstract class TaskEmbedder {
         // Do nothing
     }
 
+    /**
+     * Updates position and bounds information needed by WM and IME to manage window
+     * focus and touch events properly.
+     * <p>
+     * This should be called whenever the position or size of the surface changes
+     * or if touchable areas above the surface are added or removed.
+     */
+    protected void updateLocationAndTapExcludeRegion() {
+        if (!isInitialized() || mHost.getWindow() == null) {
+            return;
+        }
+        applyTapExcludeRegion(mHost.getWindow(), mHost.getTapExcludeRegion());
+    }
+
+    /**
+     * Call to update the tap exclude region for the window.
+     * <p>
+     * This should not normally be called directly, but through
+     * {@link #updateLocationAndTapExcludeRegion()}. This method
+     * is provided as an optimization when managing multiple TaskSurfaces within a view.
+     *
+     * @see IWindowSession#updateTapExcludeRegion(IWindow, Region)
+     */
+    private void applyTapExcludeRegion(IWindow window, @Nullable Region tapExcludeRegion) {
+        try {
+            IWindowSession session = WindowManagerGlobal.getWindowSession();
+            session.updateTapExcludeRegion(window, tapExcludeRegion);
+        } catch (RemoteException e) {
+            e.rethrowAsRuntimeException();
+        }
+    }
+
+    /**
+     * Removes the tap exclude region set by {@link #updateLocationAndTapExcludeRegion()}.
+     */
+    private void clearTapExcludeRegion() {
+        if (!isInitialized() || mHost.getWindow() == null) {
+            return;
+        }
+        applyTapExcludeRegion(mHost.getWindow(), null);
+    }
+
     /**
      * Set the callback to be notified about state changes.
      * <p>This class must finish initializing before {@link #startActivity(Intent)} can be called.

core/java/android/window/TaskOrganizerTaskEmbedder.java

@@ -75,7 +75,8 @@ public class TaskOrganizerTaskEmbedder extends TaskEmbedder {
         // infrastructure is ready.
         mTaskOrganizer.registerOrganizer(WINDOWING_MODE_MULTI_WINDOW);
         mTaskOrganizer.setInterceptBackPressedOnTaskRoot(true);
-        return true;
+
+        return super.onInitialize();
     }
 
     @Override
@@ -96,6 +97,7 @@ public class TaskOrganizerTaskEmbedder extends TaskEmbedder {
      */
     @Override
     public void start() {
+        super.start();
         if (DEBUG) {
             log("start");
         }
@@ -119,6 +121,7 @@ public class TaskOrganizerTaskEmbedder extends TaskEmbedder {
      */
     @Override
     public void stop() {
+        super.stop();
         if (DEBUG) {
             log("stop");
         }
@@ -143,6 +146,7 @@ public class TaskOrganizerTaskEmbedder extends TaskEmbedder {
      */
     @Override
     public void notifyBoundsChanged() {
+        super.notifyBoundsChanged();
         if (DEBUG) {
             log("notifyBoundsChanged: screenBounds=" + mHost.getScreenBounds());
         }

core/java/android/window/VirtualDisplayTaskEmbedder.java

@@ -21,7 +21,6 @@ import static android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_C
 import static android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC;
 import static android.view.Display.INVALID_DISPLAY;
 
-import android.annotation.Nullable;
 import android.app.ActivityManager;
 import android.app.ActivityOptions;
 import android.app.ActivityTaskManager;
@@ -40,7 +39,6 @@ import android.os.RemoteException;
 import android.os.SystemClock;
 import android.util.DisplayMetrics;
 import android.util.Log;
-import android.view.IWindow;
 import android.view.IWindowManager;
 import android.view.IWindowSession;
 import android.view.InputDevice;
@@ -134,20 +132,15 @@ public class VirtualDisplayTaskEmbedder extends TaskEmbedder {
             e.rethrowAsRuntimeException();
         }
 
-        if (mHost.getWindow() != null) {
-            updateLocationAndTapExcludeRegion();
-        }
-        return true;
+        return super.onInitialize();
     }
 
     @Override
     protected boolean onRelease() {
+        super.onRelease();
         // Clear activity view geometry for IME on this display
         clearActivityViewGeometryForIme();
 
-        // Clear tap-exclude region (if any) for this window.
-        clearTapExcludeRegion();
-
         if (mTaskStackListener != null) {
             try {
                 mActivityTaskManager.unregisterTaskStackListener(mTaskStackListener);
@@ -170,9 +163,9 @@ public class VirtualDisplayTaskEmbedder extends TaskEmbedder {
      */
     @Override
     public void start() {
+        super.start();
         if (isInitialized()) {
             mVirtualDisplay.setDisplayState(true);
-            updateLocationAndTapExcludeRegion();
         }
     }
 
@@ -181,22 +174,13 @@ public class VirtualDisplayTaskEmbedder extends TaskEmbedder {
      */
     @Override
     public void stop() {
+        super.stop();
         if (isInitialized()) {
             mVirtualDisplay.setDisplayState(false);
             clearActivityViewGeometryForIme();
-            clearTapExcludeRegion();
         }
     }
 
-    /**
-     * This should be called whenever the position or size of the surface changes
-     * or if touchable areas above the surface are added or removed.
-     */
-    @Override
-    public void notifyBoundsChanged() {
-        updateLocationAndTapExcludeRegion();
-    }
-
     /**
      * Called to update the dimensions whenever the host size changes.
      *
@@ -298,12 +282,13 @@ public class VirtualDisplayTaskEmbedder extends TaskEmbedder {
      * This should be called whenever the position or size of the surface changes
      * or if touchable areas above the surface are added or removed.
      */
-    private void updateLocationAndTapExcludeRegion() {
+    @Override
+    protected void updateLocationAndTapExcludeRegion() {
+        super.updateLocationAndTapExcludeRegion();
         if (!isInitialized() || mHost.getWindow() == null) {
             return;
         }
         reportLocation(mHost.getScreenToTaskMatrix(), mHost.getPositionInWindow());
-        applyTapExcludeRegion(mHost.getWindow(), mHost.getTapExcludeRegion());
     }
 
     /**
@@ -331,24 +316,6 @@ public class VirtualDisplayTaskEmbedder extends TaskEmbedder {
         }
     }
 
-    /**
-     * Call to update the tap exclude region for the window.
-     * <p>
-     * This should not normally be called directly, but through
-     * {@link #updateLocationAndTapExcludeRegion()}. This method
-     * is provided as an optimization when managing multiple TaskSurfaces within a view.
-     *
-     * @see IWindowSession#updateTapExcludeRegion(IWindow, Region)
-     */
-    private void applyTapExcludeRegion(IWindow window, @Nullable Region tapExcludeRegion) {
-        try {
-            IWindowSession session = WindowManagerGlobal.getWindowSession();
-            session.updateTapExcludeRegion(window, tapExcludeRegion);
-        } catch (RemoteException e) {
-            e.rethrowAsRuntimeException();
-        }
-    }
-
     /**
      * @see InputMethodManager#reportActivityView(int, Matrix)
      */
@@ -357,17 +324,6 @@ public class VirtualDisplayTaskEmbedder extends TaskEmbedder {
         mContext.getSystemService(InputMethodManager.class).reportActivityView(displayId, null);
     }
 
-    /**
-     * Removes the tap exclude region set by {@link #updateLocationAndTapExcludeRegion()}.
-     */
-    private void clearTapExcludeRegion() {
-        if (mHost.getWindow() == null) {
-            Log.w(TAG, "clearTapExcludeRegion: not attached to window!");
-            return;
-        }
-        applyTapExcludeRegion(mHost.getWindow(), null);
-    }
-
     private static KeyEvent createKeyEvent(int action, int code, int displayId) {
         long when = SystemClock.uptimeMillis();
         final KeyEvent ev = new KeyEvent(when, when, action, code, 0 /* repeat */,