Remove activation gestures form reported and add a touch explore requesting flag.

1. Delegating activation gestures has several issues that we should
   decide how to handle if possible before allowing an accessibility
   service to take over them:

   A) It is needed that every view than can be clicked or long pressed on
      reacts to such as a response to calling performClick and performLongPress
      which is not necessary true since the view may watch the touch
      events and do its own click long click detection. As a result it may
      be possible that there are view a user cannot interact with in
      touch exploration mode but can if not in that mode.

   B) Clicking or long pressing on a different location in a view may yield
      different results, for example NumberPicker. Ideally such views have
      to implement AccessibilityNodeProvide which provider handles correctly
      the request for click long press on virtual nodes. Some apps however
      just fire different hover accessibility events when the user is over
      a specific semantic portion of the view but do not provide virtual
      nodes. Hence, a user will not be able to interact with such semantic
      regions but the system can achieve that by sending the click/long click
      at the precise location in the view that was last touch explored.

2. Adding a flag on accessibility service info to request explore by touch
   mode. There is no need to put the device in this mode if node of the currently
   enabled accessibility services supports it. Now the problem is inverted and
   the service has to explicitly state its capability.

3. Fixing a bug where includeImportantViews was ignored for automation
   services.

Change-Id: I3b29a19f24ab5e26ee29f974bbac2197614c9e2a

1 files changed, 3 insertions, 6 deletions

diff --git a/api/current.txt b/api/current.txt
index a8bf949..3dd1fc2 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -315,7 +315,6 @@ package android {
     field public static final int cacheColorHint = 16843009; // 0x1010101
     field public static final int calendarViewShown = 16843596; // 0x101034c
     field public static final int calendarViewStyle = 16843613; // 0x101035d
-    field public static final int canHandleGestures = 16843691; // 0x10103ab
     field public static final int canRetrieveWindowContent = 16843653; // 0x1010385
     field public static final int candidatesTextStyleSpans = 16843312; // 0x1010230
     field public static final deprecated int capitalize = 16843113; // 0x1010169
@@ -754,7 +753,7 @@ package android {
     field public static final int pathPrefix = 16842795; // 0x101002b
     field public static final int permission = 16842758; // 0x1010006
     field public static final int permissionGroup = 16842762; // 0x101000a
-    field public static final int permissionGroupFlags = 16843692; // 0x10103ac
+    field public static final int permissionGroupFlags = 16843691; // 0x10103ab
     field public static final int persistent = 16842765; // 0x101000d
     field public static final int persistentDrawingCache = 16842990; // 0x10100ee
     field public static final deprecated int phoneNumber = 16843111; // 0x1010167
@@ -2017,7 +2016,6 @@ package android.accessibilityservice {
     method protected void onServiceConnected();
     method public final boolean performGlobalAction(int);
     method public final void setServiceInfo(android.accessibilityservice.AccessibilityServiceInfo);
-    field public static final int GESTURE_DOUBLE_TAP = 17; // 0x11
     field public static final int GESTURE_SWIPE_DOWN = 2; // 0x2
     field public static final int GESTURE_SWIPE_DOWN_AND_LEFT = 15; // 0xf
     field public static final int GESTURE_SWIPE_DOWN_AND_RIGHT = 16; // 0x10
@@ -2034,7 +2032,6 @@ package android.accessibilityservice {
     field public static final int GESTURE_SWIPE_UP_AND_DOWN = 7; // 0x7
     field public static final int GESTURE_SWIPE_UP_AND_LEFT = 13; // 0xd
     field public static final int GESTURE_SWIPE_UP_AND_RIGHT = 14; // 0xe
-    field public static final int GESTURE_TAP_AND_HOLD = 18; // 0x12
     field public static final int GLOBAL_ACTION_BACK = 1; // 0x1
     field public static final int GLOBAL_ACTION_HOME = 2; // 0x2
     field public static final int GLOBAL_ACTION_NOTIFICATIONS = 4; // 0x4
@@ -2048,7 +2045,6 @@ package android.accessibilityservice {
     method public int describeContents();
     method public static java.lang.String feedbackTypeToString(int);
     method public static java.lang.String flagToString(int);
-    method public boolean getCanHandleGestures();
     method public boolean getCanRetrieveWindowContent();
     method public deprecated java.lang.String getDescription();
     method public java.lang.String getId();
@@ -2064,7 +2060,8 @@ package android.accessibilityservice {
     field public static final int FEEDBACK_HAPTIC = 2; // 0x2
     field public static final int FEEDBACK_SPOKEN = 1; // 0x1
     field public static final int FEEDBACK_VISUAL = 8; // 0x8
-    field public static final int INCLUDE_NOT_IMPORTANT_VIEWS = 2; // 0x2
+    field public static final int FLAG_INCLUDE_NOT_IMPORTANT_VIEWS = 2; // 0x2
+    field public static final int FLAG_REQUEST_TOUCH_EXPLORATION_MODE = 4; // 0x4
     field public int eventTypes;
     field public int feedbackType;
     field public int flags;