Ensure all events from a showing window are dispatched.

Accessibility services may opt-in to introspect the interactive
windows on the screen. If window introspection is enabled there
is a case where some events from a showing window are received
before the updated window state from the window manager. Now the
window manager sends over the windows before notifying the app
for the focus change.

bug:18625996

Change-Id: Ic481e01efbe12dc92f090f799feeb236672fc7b3

1 files changed, 0 insertions, 27 deletions

diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index 2781890..89aebe8 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -3314,8 +3314,6 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
         public int mAccessibilityFocusedWindowId = INVALID_WINDOW_ID;
         public long mAccessibilityFocusNodeId = AccessibilityNodeInfo.UNDEFINED_ITEM_ID;
 
-        public AccessibilityEvent mShowingFocusedWindowEvent;
-
         private boolean mTouchInteractionInProgress;
 
         private boolean canDispatchAccessibilityEventLocked(AccessibilityEvent event) {
@@ -3324,19 +3322,6 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
                 // All events that are for changes in a global window
                 // state should *always* be dispatched.
                 case AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED:
-                    if (mWindowsForAccessibilityCallback != null) {
-                        // OK, this is fun. Sometimes the focused window is notified
-                        // it has focus before being shown. Historically this event
-                        // means that the window is focused and can be introspected.
-                        // But we still have not gotten the window state from the
-                        // window manager, so delay the notification until then.
-                        AccessibilityWindowInfo window = findWindowById(event.getWindowId());
-                        if (window == null) {
-                            mShowingFocusedWindowEvent = AccessibilityEvent.obtain(event);
-                            return false;
-                        }
-                    }
-                // $fall-through$
                 case AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED:
                 case AccessibilityEvent.TYPE_ANNOUNCEMENT:
                 // All events generated by the user touching the
@@ -3428,18 +3413,6 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
             }
 
             notifyWindowsChanged();
-
-            // If we are delaying a window state change event as the window
-            // source was showing when it was fired, now is the time to send.
-            if (mShowingFocusedWindowEvent != null) {
-                final int windowId = mShowingFocusedWindowEvent.getWindowId();
-                AccessibilityWindowInfo window = findWindowById(windowId);
-                if (window != null) {
-                    // Sending does the recycle.
-                    sendAccessibilityEvent(mShowingFocusedWindowEvent, mCurrentUserId);
-                }
-                mShowingFocusedWindowEvent = null;
-            }
         }
 
         public boolean computePartialInteractiveRegionForWindowLocked(int windowId,