Fix key info reported by keyboard accessibility node provider.

Bug: 6704529
Change-Id: I519881a96767a8858c11da7c0abac3e276a45cf5

java/src/com/android/inputmethod/accessibility/AccessibilityEntityProvider.java

@@ -195,8 +195,7 @@ public class AccessibilityEntityProvider extends AccessibilityNodeProviderCompat
             info.setSource(mKeyboardView, virtualViewId);
             info.setBoundsInScreen(boundsInScreen);
             info.setEnabled(true);
-            info.setClickable(true);
+            info.setVisibleToUser(true);
-            info.addAction(AccessibilityNodeInfoCompat.ACTION_CLICK);
 
             if (mAccessibilityFocusedView == virtualViewId) {
                 info.addAction(AccessibilityNodeInfoCompat.ACTION_CLEAR_ACCESSIBILITY_FOCUS);
@@ -225,6 +224,9 @@ public class AccessibilityEntityProvider extends AccessibilityNodeProviderCompat
 
         mKeyboardView.onTouchEvent(downEvent);
         mKeyboardView.onTouchEvent(upEvent);
+
+        downEvent.recycle();
+        upEvent.recycle();
     }
 
     @Override
@@ -251,9 +253,6 @@ public class AccessibilityEntityProvider extends AccessibilityNodeProviderCompat
         final int virtualViewId = generateVirtualViewIdForKey(key);
 
         switch (action) {
-        case AccessibilityNodeInfoCompat.ACTION_CLICK:
-            simulateKeyPress(key);
-            return true;
         case AccessibilityNodeInfoCompat.ACTION_ACCESSIBILITY_FOCUS:
             if (mAccessibilityFocusedView == virtualViewId) {
                 return false;

java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java

@@ -105,8 +105,21 @@ public class AccessibleKeyboardViewProxy extends AccessibilityDelegateCompat {
     }
 
     /**
-     * Receives hover events when accessibility is turned on in SDK versions ICS
+     * Receives motion events when touch exploration is turned on in SDK
-     * and higher.
+     * versions ICS and higher.
+     *
+     * @param event The motion event.
+     * @return {@code true} if the event is handled
+     */
+    public boolean onTouchEvent(MotionEvent event) {
+        // To avoid accidental key presses during touch exploration, always drop
+        // non-hover touch events.
+        return false;
+    }
+
+    /**
+     * Receives hover events when touch exploration is turned on in SDK versions
+     * ICS and higher.
      *
      * @param event The hover event.
      * @return {@code true} if the event is handled

java/src/com/android/inputmethod/keyboard/MainKeyboardView.java

@@ -672,6 +672,9 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
         if (getKeyboard() == null) {
             return false;
         }
+        if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
+            return AccessibleKeyboardViewProxy.getInstance().onTouchEvent(me);
+        }
         return mTouchScreenRegulator.onTouchEvent(me);
     }
 

java/src/com/android/inputmethod/latin/LatinIME.java

@@ -667,7 +667,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
         // Forward this event to the accessibility utilities, if enabled.
         final AccessibilityUtils accessUtils = AccessibilityUtils.getInstance();
         if (accessUtils.isTouchExplorationEnabled()) {
-            accessUtils.onStartInputViewInternal(inputView, editorInfo, restarting);
+            accessUtils.onStartInputViewInternal(mainKeyboardView, editorInfo, restarting);
         }
 
         if (!restarting) {