Interaction model of KeyboarView should be same as latimIME

1. In latin IME key up types in - now the keyboad view does the same.

bug:6534935

Change-Id: I91cd40c5cd541199f3fb43e4d0bf26be511dcd09

Author: sganov

core/java/android/inputmethodservice/KeyboardView.java

@@ -855,15 +855,23 @@ private void showPreview(int keyIndex) {
                 Key oldKey = keys[oldKeyIndex];
                 oldKey.onReleased(mCurrentKeyIndex == NOT_A_KEY);
                 invalidateKey(oldKeyIndex);
+                final int keyCode = oldKey.codes[0];
                 sendAccessibilityEventForUnicodeCharacter(AccessibilityEvent.TYPE_VIEW_HOVER_EXIT,
-                        oldKey.codes[0]);
+                        keyCode);
+                // TODO: We need to implement AccessibilityNodeProvider for this view.
+                sendAccessibilityEventForUnicodeCharacter(
+                        AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED, keyCode);
             }
             if (mCurrentKeyIndex != NOT_A_KEY && keys.length > mCurrentKeyIndex) {
                 Key newKey = keys[mCurrentKeyIndex];
                 newKey.onPressed();
                 invalidateKey(mCurrentKeyIndex);
+                final int keyCode = newKey.codes[0];
                 sendAccessibilityEventForUnicodeCharacter(AccessibilityEvent.TYPE_VIEW_HOVER_ENTER,
-                        newKey.codes[0]);
+                        keyCode);
+                // TODO: We need to implement AccessibilityNodeProvider for this view.
+                sendAccessibilityEventForUnicodeCharacter(
+                        AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED, keyCode);
             }
         }
         // If key changed and preview is on ...
@@ -1154,20 +1162,17 @@ public boolean onHoverEvent(MotionEvent event) {
         if (mAccessibilityManager.isTouchExplorationEnabled() && event.getPointerCount() == 1) {
             final int action = event.getAction();
             switch (action) {
-                case MotionEvent.ACTION_HOVER_ENTER:
-                case MotionEvent.ACTION_HOVER_MOVE:
-                    final int touchX = (int) event.getX() - mPaddingLeft;
-                    int touchY = (int) event.getY() - mPaddingTop;
-                    if (touchY >= -mVerticalCorrection) {
-                        touchY += mVerticalCorrection;
-                    }
-                    final int keyIndex = getKeyIndices(touchX, touchY, null);
-                    showPreview(keyIndex);
-                    break;
-                case MotionEvent.ACTION_HOVER_EXIT:
-                    showPreview(NOT_A_KEY);
-                    break;
+                case MotionEvent.ACTION_HOVER_ENTER: {
+                    event.setAction(MotionEvent.ACTION_DOWN);
+                } break;
+                case MotionEvent.ACTION_HOVER_MOVE: {
+                    event.setAction(MotionEvent.ACTION_MOVE);
+                } break;
+                case MotionEvent.ACTION_HOVER_EXIT: {
+                    event.setAction(MotionEvent.ACTION_UP);
+                } break;
             }
+            return onTouchEvent(event);
         }
         return true;
     }