[DO NOT MERGE] AccessibilityInputFilter: retain service gesture detection state when rebuilding.

Otherwise, as soon as we rebuild the input filter e.g. enable magnification, service gesture detection gets turned off.

Bug: 243487199
Test: atest TouchInteractionControllerTest
Change-Id: Ifdfaffd2ff2addc7a4dd7d69cf6128947efdacea

services/accessibility/java/com/android/server/accessibility/AbstractAccessibilityServiceConnection.java

@@ -176,6 +176,7 @@ abstract class AbstractAccessibilityServiceConnection extends IAccessibilityServ
 
     private boolean mSendMotionEvents;
 
+    private SparseArray<Boolean> mServiceDetectsGestures = new SparseArray<>(0);
     boolean mRequestFilterKeyEvents;
 
     boolean mRetrieveInteractiveWindows;
@@ -2344,9 +2345,17 @@ abstract class AbstractAccessibilityServiceConnection extends IAccessibilityServ
     }
 
     public void setServiceDetectsGesturesEnabled(int displayId, boolean mode) {
+        mServiceDetectsGestures.put(displayId, mode);
         mSystemSupport.setServiceDetectsGesturesEnabled(displayId, mode);
     }
 
+    public boolean isServiceDetectsGesturesEnabled(int displayId) {
+        if (mServiceDetectsGestures.contains(displayId)) {
+            return mServiceDetectsGestures.get(displayId);
+        }
+        return false;
+    }
+
     public void requestTouchExploration(int displayId) {
         mSystemSupport.requestTouchExploration(displayId);
     }

services/accessibility/java/com/android/server/accessibility/AccessibilityInputFilter.java

@@ -176,6 +176,8 @@ class AccessibilityInputFilter extends InputFilter implements EventStreamTransfo
 
     private int mEnabledFeatures;
 
+    // Display-specific features
+    private SparseArray<Boolean> mServiceDetectsGestures = new SparseArray<>();
     private final SparseArray<EventStreamState> mMouseStreamStates = new SparseArray<>(0);
 
     private final SparseArray<EventStreamState> mTouchScreenStreamStates = new SparseArray<>(0);
@@ -458,7 +460,9 @@ class AccessibilityInputFilter extends InputFilter implements EventStreamTransfo
 
         final Context displayContext = mContext.createDisplayContext(display);
         final int displayId = display.getDisplayId();
-
+        if (!mServiceDetectsGestures.contains(displayId)) {
+            mServiceDetectsGestures.put(displayId, false);
+        }
         if ((mEnabledFeatures & FLAG_FEATURE_AUTOCLICK) != 0) {
             if (mAutoclickController == null) {
                 mAutoclickController = new AutoclickController(
@@ -481,6 +485,7 @@ class AccessibilityInputFilter extends InputFilter implements EventStreamTransfo
             if ((mEnabledFeatures & FLAG_SEND_MOTION_EVENTS) != 0) {
                 explorer.setSendMotionEventsEnabled(true);
             }
+            explorer.setServiceDetectsGestures(mServiceDetectsGestures.get(displayId));
             addFirstEventHandler(displayId, explorer);
             mTouchExplorer.put(displayId, explorer);
         }
@@ -565,7 +570,8 @@ class AccessibilityInputFilter extends InputFilter implements EventStreamTransfo
             mTouchExplorer.remove(displayId);
         }
 
-        final MagnificationGestureHandler handler = mMagnificationGestureHandler.get(displayId);
+        final MagnificationGestureHandler handler =
+                mMagnificationGestureHandler.get(displayId);
         if (handler != null) {
             handler.onDestroy();
             mMagnificationGestureHandler.remove(displayId);
@@ -897,6 +903,7 @@ class AccessibilityInputFilter extends InputFilter implements EventStreamTransfo
         if (mTouchExplorer.contains(displayId)) {
             mTouchExplorer.get(displayId).setServiceDetectsGestures(mode);
         }
+        mServiceDetectsGestures.put(displayId, mode);
     }
 
     public void requestTouchExploration(int displayId) {

services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java

@@ -1721,31 +1721,34 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
     }
 
     private boolean scheduleNotifyMotionEvent(MotionEvent event) {
+        boolean result = false;
+        int displayId = event.getDisplayId();
         synchronized (mLock) {
             AccessibilityUserState state = getCurrentUserStateLocked();
             for (int i = state.mBoundServices.size() - 1; i >= 0; i--) {
                 AccessibilityServiceConnection service = state.mBoundServices.get(i);
-                if (service.mRequestTouchExplorationMode) {
+                if (service.isServiceDetectsGesturesEnabled(displayId)) {
                     service.notifyMotionEvent(event);
-                    return true;
+                    result = true;
                 }
             }
         }
-        return false;
+        return result;
     }
 
     private boolean scheduleNotifyTouchState(int displayId, int touchState) {
+        boolean result = false;
         synchronized (mLock) {
             AccessibilityUserState state = getCurrentUserStateLocked();
             for (int i = state.mBoundServices.size() - 1; i >= 0; i--) {
                 AccessibilityServiceConnection service = state.mBoundServices.get(i);
-                if (service.mRequestTouchExplorationMode) {
+                if (service.isServiceDetectsGesturesEnabled(displayId)) {
                     service.notifyTouchState(displayId, touchState);
-                    return true;
+                    result = true;
                 }
             }
         }
-        return false;
+        return result;
     }
 
     private void notifyClearAccessibilityCacheLocked() {
@@ -2301,7 +2304,6 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
                 if (userState.isTwoFingerPassthroughEnabledLocked()) {
                     flags |= AccessibilityInputFilter.FLAG_REQUEST_2_FINGER_PASSTHROUGH;
                 }
-            }
             if (userState.isFilterKeyEventsEnabledLocked()) {
                 flags |= AccessibilityInputFilter.FLAG_FEATURE_FILTER_KEY_EVENTS;
             }
@@ -2314,6 +2316,7 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
             if (userState.isPerformGesturesEnabledLocked()) {
                 flags |= AccessibilityInputFilter.FLAG_FEATURE_INJECT_MOTION_EVENTS;
             }
+
             if (flags != 0) {
                 if (!mHasInputFilter) {
                     mHasInputFilter = true;
@@ -2326,9 +2329,20 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
                 }
                 mInputFilter.setUserAndEnabledFeatures(userState.mUserId, flags);
             } else {
-                if (mHasInputFilter) {
+                    if (mHasInputFilter) {
-                    mHasInputFilter = false;
+                        mHasInputFilter = false;
-                    mInputFilter.setUserAndEnabledFeatures(userState.mUserId, 0);
+                        mInputFilter.setUserAndEnabledFeatures(userState.mUserId, 0);
+                        if (userState.isTouchExplorationEnabledLocked()) {
+                            // Service gesture detection is turned on and off on a per-display
+                            // basis.
+                            final ArrayList<Display> displays = getValidDisplayList();
+                            for (Display display : displays) {
+                                int displayId = display.getDisplayId();
+                                boolean mode = userState.isServiceDetectsGesturesEnabled(displayId);
+                                mInputFilter.setServiceDetectsGesturesEnabled(displayId, mode);
+                            }
+                        }
+                    }
                     inputFilter = null;
                     setInputFilter = true;
                 }
@@ -4304,6 +4318,7 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub
 
     private void setServiceDetectsGesturesInternal(int displayId, boolean mode) {
         synchronized (mLock) {
+            getCurrentUserStateLocked().setServiceDetectsGesturesEnabled(displayId, mode);
             if (mHasInputFilter && mInputFilter != null) {
                 mInputFilter.setServiceDetectsGesturesEnabled(displayId, mode);
             }

services/accessibility/java/com/android/server/accessibility/AccessibilityUserState.java

@@ -44,6 +44,7 @@ import android.provider.Settings;
 import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.Slog;
+import android.util.SparseArray;
 import android.util.SparseIntArray;
 import android.view.accessibility.AccessibilityManager;
 import android.view.accessibility.IAccessibilityManagerClient;
@@ -118,6 +119,7 @@ class AccessibilityUserState {
     private boolean mRequestMultiFingerGestures;
     private boolean mRequestTwoFingerPassthrough;
     private boolean mSendMotionEventsEnabled;
+    private SparseArray<Boolean> mServiceDetectsGestures = new SparseArray<>(0);
     private int mUserInteractiveUiTimeout;
     private int mUserNonInteractiveUiTimeout;
     private int mNonInteractiveUiTimeout = 0;
@@ -987,4 +989,15 @@ class AccessibilityUserState {
         mFocusStrokeWidth = strokeWidth;
         mFocusColor = color;
     }
+
+    public void setServiceDetectsGesturesEnabled(int displayId, boolean mode) {
+        mServiceDetectsGestures.put(displayId, mode);
+    }
+
+    public boolean isServiceDetectsGesturesEnabled(int displayId) {
+        if (mServiceDetectsGestures.contains(displayId)) {
+            return mServiceDetectsGestures.get(displayId);
+        }
+        return false;
+    }
 }