Refresh Accessibility key mapping when KeyboardView changes Keyboards.

Bug: 6609626
Change-Id: I93d764b46e96fe70b61c91a7dcb46945ac8853dd

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

@@ -85,9 +85,20 @@ public class AccessibilityEntityProvider extends AccessibilityNodeProviderCompat
      */
     public void setView(KeyboardView keyboardView) {
         mKeyboardView = keyboardView;
+        updateParentLocation();
+
+        // Since this class is constructed lazily, we might not get a subsequent
+        // call to setKeyboard() and therefore need to call it now.
+        setKeyboard(mKeyboardView.getKeyboard());
+    }
 
+    /**
+     * Sets the keyboard represented by this node provider.
+     *
+     * @param keyboard The keyboard to represent.
+     */
+    public void setKeyboard(Keyboard keyboard) {
         assignVirtualViewIds();
-        updateParentLocation();
     }
 
     /**

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

@@ -86,6 +86,12 @@ public class AccessibleKeyboardViewProxy extends AccessibilityDelegateCompat {
         }
     }
 
+    public void setKeyboard(Keyboard keyboard) {
+        if (mAccessibilityNodeProvider != null) {
+            mAccessibilityNodeProvider.setKeyboard(keyboard);
+        }
+    }
+
     /**
      * Proxy method for View.getAccessibilityNodeProvider(). This method is
      * called in SDK version 15 and higher to obtain the virtual node hierarchy

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

@@ -468,6 +468,10 @@ public class LatinKeyboardView extends KeyboardView implements PointerTracker.Ke
         if (ProductionFlag.IS_EXPERIMENTAL) {
             ResearchLogger.latinKeyboardView_setKeyboard(keyboard);
         }
+
+        // This always needs to be set since the accessibility state can
+        // potentially change without the keyboard being set again.
+        AccessibleKeyboardViewProxy.getInstance().setKeyboard(keyboard);
     }
 
     /**