Disable Tap to click while typing on a PK

This change will disable tap to click on touchpad while user is typing
on keyboard. Any move events or new taps will reenable tap to click.

Test: atest GestureConverterTest && atest inputflinger_tests and manual
testing
Bug: 275616121

Change-Id: I5b7d984e5cce7f65c16ec19a0b8373c95e75f30b
diff --git a/services/inputflinger/tests/GestureConverter_test.cpp b/services/inputflinger/tests/GestureConverter_test.cpp
index 482a266..4df0f69 100644
--- a/services/inputflinger/tests/GestureConverter_test.cpp
+++ b/services/inputflinger/tests/GestureConverter_test.cpp
@@ -983,4 +983,226 @@
     ASSERT_TRUE(mFakePointerController->isPointerShown());
 }
 
+TEST_F(GestureConverterTest, Tap) {
+    // Tap should produce button press/release events
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+
+    Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
+                         /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+
+    Gesture tapGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+                       /* down= */ GESTURES_BUTTON_LEFT,
+                       /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapGesture);
+
+    ASSERT_EQ(5u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
+                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
+                      WithToolType(ToolType::FINGER), WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithPressure(1.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(POINTER_X, POINTER_Y),
+                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
+                      WithButtonState(0), WithPressure(0.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+}
+
+TEST_F(GestureConverterTest, Click) {
+    // Click should produce button press/release events
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+
+    Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
+                         /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+
+    Gesture buttonDownGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+                              /* down= */ GESTURES_BUTTON_LEFT,
+                              /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonDownGesture);
+
+    ASSERT_EQ(2u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
+                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
+                      WithToolType(ToolType::FINGER), WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithPressure(1.0f)));
+
+    Gesture buttonUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+                            /* down= */ GESTURES_BUTTON_NONE,
+                            /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ false);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonUpGesture);
+
+    ASSERT_EQ(3u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(POINTER_X, POINTER_Y),
+                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
+                      WithButtonState(0), WithPressure(0.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+}
+
+TEST_F(GestureConverterTest, TapWithTapToClickDisabled) {
+    // Tap should be ignored when disabled
+    mReader->getContext()->setPreventingTouchpadTaps(true);
+
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+
+    Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
+                         /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+    args.pop_front();
+
+    Gesture tapGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+                       /* down= */ GESTURES_BUTTON_LEFT,
+                       /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ true);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, tapGesture);
+
+    // no events should be generated
+    ASSERT_EQ(0u, args.size());
+
+    // Future taps should be re-enabled
+    ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
+}
+
+TEST_F(GestureConverterTest, ClickWithTapToClickDisabled) {
+    // Click should still produce button press/release events
+    mReader->getContext()->setPreventingTouchpadTaps(true);
+
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+
+    Gesture flingGesture(kGestureFling, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, /* vx= */ 0,
+                         /* vy= */ 0, GESTURES_FLING_TAP_DOWN);
+    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, flingGesture);
+
+    ASSERT_EQ(1u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+
+    Gesture buttonDownGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+                              /* down= */ GESTURES_BUTTON_LEFT,
+                              /* up= */ GESTURES_BUTTON_NONE, /* is_tap= */ false);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonDownGesture);
+    ASSERT_EQ(2u, args.size());
+
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_DOWN), WithCoords(POINTER_X, POINTER_Y),
+                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY), WithPressure(1.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_PRESS),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
+                      WithToolType(ToolType::FINGER), WithButtonState(AMOTION_EVENT_BUTTON_PRIMARY),
+                      WithPressure(1.0f)));
+
+    Gesture buttonUpGesture(kGestureButtonsChange, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME,
+                            /* down= */ GESTURES_BUTTON_NONE,
+                            /* up= */ GESTURES_BUTTON_LEFT, /* is_tap= */ false);
+    args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, buttonUpGesture);
+
+    ASSERT_EQ(3u, args.size());
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
+                      WithActionButton(AMOTION_EVENT_BUTTON_PRIMARY), WithButtonState(0),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0.f, 0.f),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(1.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithCoords(POINTER_X, POINTER_Y),
+                      WithRelativeMotion(0.f, 0.f), WithToolType(ToolType::FINGER),
+                      WithButtonState(0), WithPressure(0.0f)));
+    args.pop_front();
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X, POINTER_Y), WithRelativeMotion(0, 0),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+
+    // Future taps should be re-enabled
+    ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
+}
+
+TEST_F(GestureConverterTest, MoveEnablesTapToClick) {
+    // initially disable tap-to-click
+    mReader->getContext()->setPreventingTouchpadTaps(true);
+
+    InputDeviceContext deviceContext(*mDevice, EVENTHUB_ID);
+    GestureConverter converter(*mReader->getContext(), deviceContext, DEVICE_ID);
+
+    Gesture moveGesture(kGestureMove, ARBITRARY_GESTURE_TIME, ARBITRARY_GESTURE_TIME, -5, 10);
+    std::list<NotifyArgs> args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, moveGesture);
+    ASSERT_EQ(1u, args.size());
+
+    ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+                AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE),
+                      WithCoords(POINTER_X - 5, POINTER_Y + 10), WithRelativeMotion(-5, 10),
+                      WithToolType(ToolType::FINGER), WithButtonState(0), WithPressure(0.0f)));
+
+    ASSERT_NO_FATAL_FAILURE(mFakePointerController->assertPosition(POINTER_X - 5, POINTER_Y + 10));
+
+    // Future taps should be re-enabled
+    ASSERT_FALSE(mReader->getContext()->isPreventingTouchpadTaps());
+}
+
 } // namespace android
diff --git a/services/inputflinger/tests/InstrumentedInputReader.h b/services/inputflinger/tests/InstrumentedInputReader.h
index 7f8d556..fef58ec 100644
--- a/services/inputflinger/tests/InstrumentedInputReader.h
+++ b/services/inputflinger/tests/InstrumentedInputReader.h
@@ -103,12 +103,16 @@
             mExternalStylusDevices = devices;
         }
 
+        void setPreventingTouchpadTaps(bool prevent) override { mPreventingTouchpadTaps = prevent; }
+        bool isPreventingTouchpadTaps() override { return mPreventingTouchpadTaps; }
+
     private:
         int32_t mGlobalMetaState;
         bool mUpdateGlobalMetaStateWasCalled;
         int32_t mGeneration;
         std::optional<nsecs_t> mRequestedTimeout;
         std::vector<InputDeviceInfo> mExternalStylusDevices;
+        bool mPreventingTouchpadTaps{false};
     } mFakeContext;
 
     friend class InputReaderTest;
diff --git a/services/inputflinger/tests/InterfaceMocks.h b/services/inputflinger/tests/InterfaceMocks.h
index d720a90..b6720c5 100644
--- a/services/inputflinger/tests/InterfaceMocks.h
+++ b/services/inputflinger/tests/InterfaceMocks.h
@@ -49,6 +49,9 @@
 
     MOCK_METHOD(void, updateLedMetaState, (int32_t metaState), (override));
     MOCK_METHOD(int32_t, getLedMetaState, (), (override));
+
+    MOCK_METHOD(void, setPreventingTouchpadTaps, (bool prevent), (override));
+    MOCK_METHOD(bool, isPreventingTouchpadTaps, (), (override));
 };
 
 class MockEventHubInterface : public EventHubInterface {
diff --git a/services/inputflinger/tests/KeyboardInputMapper_test.cpp b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
index 81060f6..08a5559 100644
--- a/services/inputflinger/tests/KeyboardInputMapper_test.cpp
+++ b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
@@ -79,6 +79,21 @@
             process(EV_SYN, SYN_REPORT, 0);
         }
     }
+
+    void testTouchpadTapStateForKeys(const std::vector<int32_t>& keyCodes,
+                                     const bool expectPrevent) {
+        EXPECT_CALL(mMockInputReaderContext, isPreventingTouchpadTaps).Times(keyCodes.size());
+        if (expectPrevent) {
+            EXPECT_CALL(mMockInputReaderContext, setPreventingTouchpadTaps(true))
+                    .Times(keyCodes.size());
+        }
+        for (int32_t keyCode : keyCodes) {
+            process(EV_KEY, keyCode, 1);
+            process(EV_SYN, SYN_REPORT, 0);
+            process(EV_KEY, keyCode, 0);
+            process(EV_SYN, SYN_REPORT, 0);
+        }
+    }
 };
 
 /**
@@ -108,4 +123,30 @@
     testPointerVisibilityForKeys(metaKeys, /* expectVisible= */ true);
 }
 
+/**
+ * Touchpad tap should not be disabled if there is no active Input Method Connection
+ */
+TEST_F(KeyboardInputMapperUnitTest, KeystrokesWithoutIMeConnectionDontDisableTouchpadTap) {
+    testTouchpadTapStateForKeys({KEY_0, KEY_A, KEY_LEFTCTRL}, /* expectPrevent= */ false);
+}
+
+/**
+ * Touchpad tap should be disabled if there is a active Input Method Connection
+ */
+TEST_F(KeyboardInputMapperUnitTest, AlphanumericKeystrokesWithIMeConnectionDisableTouchpadTap) {
+    mFakePolicy->setIsInputMethodConnectionActive(true);
+    testTouchpadTapStateForKeys({KEY_0, KEY_A}, /* expectPrevent= */ true);
+}
+
+/**
+ * Touchpad tap should not be disabled by meta keys even if Input Method Connection is active
+ */
+TEST_F(KeyboardInputMapperUnitTest, MetaKeystrokesWithIMeConnectionDontDisableTouchpadTap) {
+    mFakePolicy->setIsInputMethodConnectionActive(true);
+    std::vector<int32_t> metaKeys{KEY_LEFTALT,   KEY_RIGHTALT, KEY_LEFTSHIFT, KEY_RIGHTSHIFT,
+                                  KEY_FN,        KEY_LEFTCTRL, KEY_RIGHTCTRL, KEY_LEFTMETA,
+                                  KEY_RIGHTMETA, KEY_CAPSLOCK, KEY_NUMLOCK,   KEY_SCROLLLOCK};
+    testTouchpadTapStateForKeys(metaKeys, /* expectPrevent= */ false);
+}
+
 } // namespace android
diff --git a/services/inputflinger/tests/fuzzers/MapperHelpers.h b/services/inputflinger/tests/fuzzers/MapperHelpers.h
index ec98f81..1ecaa64 100644
--- a/services/inputflinger/tests/fuzzers/MapperHelpers.h
+++ b/services/inputflinger/tests/fuzzers/MapperHelpers.h
@@ -340,6 +340,9 @@
     void updateLedMetaState(int32_t metaState) override{};
     int32_t getLedMetaState() override { return mFdp->ConsumeIntegral<int32_t>(); };
     void notifyStylusGestureStarted(int32_t, nsecs_t) {}
+
+    void setPreventingTouchpadTaps(bool prevent) {}
+    bool isPreventingTouchpadTaps() { return mFdp->ConsumeBool(); };
 };
 
 } // namespace android