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When Accessibility is on, intercept touch events during dispatch.

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This allows Accessibility code to safely inject events into
onTouchEvent() without accidentally intercepting them.

Bug: 7137557
Change-Id: Ie4fa8e3be5b1bb84f57c6254feab1129cb89998f
This commit is contained in:
alanv 2012-09-10 15:47:24 -07:00
parent 2935276110
commit dc2ee77724
2 changed files with 13 additions and 8 deletions
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10
java/src/com/android/inputmethod/accessibility/AccessibleKeyboardViewProxy.java
View File

@ -105,15 +105,15 @@ public class AccessibleKeyboardViewProxy extends AccessibilityDelegateCompat {
} }
/** /**
* Receives motion events when touch exploration is turned on in SDK * Intercepts touch events before dispatch when touch exploration is turned
* versions ICS and higher. * on in ICS and higher.
* *
* @param event The motion event. * @param event The motion event being dispatched.
* @return {@code true} if the event is handled * @return {@code true} if the event is handled
*/ */
public boolean onTouchEvent(MotionEvent event) { public boolean dispatchTouchEvent(MotionEvent event) {
// To avoid accidental key presses during touch exploration, always drop // To avoid accidental key presses during touch exploration, always drop
// non-hover touch events. // touch events generated by the user.
return false; return false;
} }

11
java/src/com/android/inputmethod/keyboard/MainKeyboardView.java
View File

@ -660,14 +660,19 @@ public class MainKeyboardView extends KeyboardView implements PointerTracker.Key
return mOldPointerCount; return mOldPointerCount;
} }
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
return AccessibleKeyboardViewProxy.getInstance().dispatchTouchEvent(event);
}
return super.dispatchTouchEvent(event);
}
@Override @Override
public boolean onTouchEvent(final MotionEvent me) { public boolean onTouchEvent(final MotionEvent me) {
if (getKeyboard() == null) { if (getKeyboard() == null) {
return false; return false;
} }
if (AccessibilityUtils.getInstance().isTouchExplorationEnabled()) {
return AccessibleKeyboardViewProxy.getInstance().onTouchEvent(me);
}
return mTouchScreenRegulator.onTouchEvent(me); return mTouchScreenRegulator.onTouchEvent(me);
} }