Modify pilferpointers API to selectively cancel pointers
Behavior changes:
- Pilfer pointers only cancels relevant pointers (If a pointer
is used by the window calling pilferPointers(), only then,
we need to send ACTION_CANCEL/POINTER_UP to other windows using
that particular pointer)
- Any pointers not used by the window calling pilferPointers()
will remain unaffected and the windows using them will keep
receiving the events
- Any future Pointer down events will go to other windows if and
only if the "the pilfering window" that called pilferPointers() do
not need that pointer for its gesture detection (the pointer down
occurs outside the touchable bounds of the pilfering window)
Bug: 220109830
Test: atest inputflinger_tests
Change-Id: Idc59ae06352560fefd7274bc043bd6e72d5e7710
diff --git a/services/inputflinger/dispatcher/TouchState.h b/services/inputflinger/dispatcher/TouchState.h
index 9efb280..327863f 100644
--- a/services/inputflinger/dispatcher/TouchState.h
+++ b/services/inputflinger/dispatcher/TouchState.h
@@ -31,7 +31,6 @@
struct TouchState {
bool down = false;
bool split = false;
- bool preventNewTargets = false;
// id of the device that is currently down, others are rejected
int32_t deviceId = -1;
@@ -52,6 +51,13 @@
void removeWindowByToken(const sp<IBinder>& token);
void filterNonAsIsTouchWindows();
void filterWindowsExcept(const sp<IBinder>& token);
+
+ // Cancel pointers for current set of windows except the window with particular binder token.
+ void cancelPointersForWindowsExcept(const BitSet32 pointerIds, const sp<IBinder>& token);
+ // Cancel pointers for current set of non-pilfering windows i.e. windows with isPilferingWindow
+ // set to false.
+ void cancelPointersForNonPilferingWindows(const BitSet32 pointerIds);
+
sp<android::gui::WindowInfoHandle> getFirstForegroundWindowHandle() const;
bool isSlippery() const;
sp<android::gui::WindowInfoHandle> getWallpaperWindow() const;