Merge "Track input state when transferring touch focus." (3a11ca5c) · Commits · e / os / android_frameworks_native

include/ui/InputDispatcher.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -757,6 +757,9 @@ private:
		// Clears the current state.
		void clear();

		// Copies pointer-related parts of the input state to another instance.
		void copyPointerStateTo(InputState& other) const;

		private:
		struct KeyMemento {
		int32_t deviceId;

libs/ui/InputDispatcher.cpp

+30 −0

Original line number	Diff line number	Diff line
		@@ -2668,6 +2668,18 @@ bool InputDispatcher::transferTouchFocus(const sp<InputChannel>& fromChannel,
		return false;
		}

		ssize_t fromConnectionIndex = getConnectionIndexLocked(fromChannel);
		ssize_t toConnectionIndex = getConnectionIndexLocked(toChannel);
		if (fromConnectionIndex >= 0 && toConnectionIndex >= 0) {
		sp<Connection> fromConnection = mConnectionsByReceiveFd.valueAt(fromConnectionIndex);
		sp<Connection> toConnection = mConnectionsByReceiveFd.valueAt(toConnectionIndex);

		fromConnection->inputState.copyPointerStateTo(toConnection->inputState);
		synthesizeCancelationEventsForConnectionLocked(fromConnection,
		InputState::CANCEL_POINTER_EVENTS,
		"transferring touch focus from this window to another window");
		}

		#if DEBUG_FOCUS
		logDispatchStateLocked();
		#endif
		@@ -3404,6 +3416,24 @@ void InputDispatcher::InputState::clear() {
		mMotionMementos.clear();
		}

		void InputDispatcher::InputState::copyPointerStateTo(InputState& other) const {
		for (size_t i = 0; i < mMotionMementos.size(); i++) {
		const MotionMemento& memento = mMotionMementos.itemAt(i);
		if (memento.source & AINPUT_SOURCE_CLASS_POINTER) {
		for (size_t j = 0; j < other.mMotionMementos.size(); ) {
		const MotionMemento& otherMemento = other.mMotionMementos.itemAt(j);
		if (memento.deviceId == otherMemento.deviceId
		&& memento.source == otherMemento.source) {
		other.mMotionMementos.removeAt(j);
		} else {
		j += 1;
		}
		}
		other.mMotionMementos.push(memento);
		}
		}
		}

		bool InputDispatcher::InputState::shouldCancelEvent(int32_t eventSource,
		CancelationOptions options) {
		switch (options) {