TouchpadInputMapper: send hover events after UP
After an UP event, it's expected that an input device with a cursor
(e.g. mouse, touchpad, stylus) sends a HOVER_ENTER event so that the app
knows the cursor is hovering again. From how CursorInputMapper does
this, it seems that the convention is for the mapper to send a
HOVER_MOVE which is then turned into HOVER_ENTER later in the stack.
This is an area we'd like to refactor in future, but for now this fixes
the issue in a way that's consistent with CursorInputMapper.
Bug: 287246827
Test: in a test app, click with a touchpad and check the UP event is
followed by a HOVER_ENTER
Test: atest inputflinger_tests:GestureConverterTest
Change-Id: I990428552549b3bc8a1eda7199dcbe92801ca4e1
diff --git a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
index 1088821..e826341 100644
--- a/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
+++ b/services/inputflinger/reader/mapper/gestures/GestureConverter.cpp
@@ -239,6 +239,11 @@
out.push_back(makeMotionArgs(when, readTime, AMOTION_EVENT_ACTION_UP, /* actionButton= */ 0,
newButtonState, /* pointerCount= */ 1, mFingerProps.data(),
&coords, xCursorPosition, yCursorPosition));
+ // Send a HOVER_MOVE to tell the application that the mouse is hovering again.
+ out.push_back(makeMotionArgs(when, readTime, AMOTION_EVENT_ACTION_HOVER_MOVE,
+ /*actionButton=*/0, newButtonState, /*pointerCount=*/1,
+ mFingerProps.data(), &coords, xCursorPosition,
+ yCursorPosition));
}
mButtonState = newButtonState;
return out;
diff --git a/services/inputflinger/tests/GestureConverter_test.cpp b/services/inputflinger/tests/GestureConverter_test.cpp
index a3994f0..482a266 100644
--- a/services/inputflinger/tests/GestureConverter_test.cpp
+++ b/services/inputflinger/tests/GestureConverter_test.cpp
@@ -169,7 +169,7 @@
/* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_RIGHT,
/* is_tap= */ false);
args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, rightUpGesture);
- ASSERT_EQ(2u, args.size());
+ ASSERT_EQ(3u, args.size());
ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
@@ -181,6 +181,10 @@
AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
WithCoords(POINTER_X, POINTER_Y),
WithToolType(ToolType::FINGER)));
+ args.pop_front();
+ ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+ AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithButtonState(0),
+ WithCoords(POINTER_X, POINTER_Y), WithToolType(ToolType::FINGER)));
}
TEST_F(GestureConverterTest, DragWithButton) {
@@ -225,7 +229,7 @@
/* down= */ GESTURES_BUTTON_NONE, /* up= */ GESTURES_BUTTON_LEFT,
/* is_tap= */ false);
args = converter.handleGesture(ARBITRARY_TIME, READ_TIME, upGesture);
- ASSERT_EQ(2u, args.size());
+ ASSERT_EQ(3u, args.size());
ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
AllOf(WithMotionAction(AMOTION_EVENT_ACTION_BUTTON_RELEASE),
@@ -237,6 +241,10 @@
AllOf(WithMotionAction(AMOTION_EVENT_ACTION_UP), WithButtonState(0),
WithCoords(POINTER_X - 5, POINTER_Y + 10),
WithToolType(ToolType::FINGER)));
+ args.pop_front();
+ ASSERT_THAT(std::get<NotifyMotionArgs>(args.front()),
+ AllOf(WithMotionAction(AMOTION_EVENT_ACTION_HOVER_MOVE), WithButtonState(0),
+ WithCoords(POINTER_X - 5, POINTER_Y + 10), WithToolType(ToolType::FINGER)));
}
TEST_F(GestureConverterTest, Scroll) {
diff --git a/services/inputflinger/tests/TouchpadInputMapper_test.cpp b/services/inputflinger/tests/TouchpadInputMapper_test.cpp
index 92cd462..02abf9f 100644
--- a/services/inputflinger/tests/TouchpadInputMapper_test.cpp
+++ b/services/inputflinger/tests/TouchpadInputMapper_test.cpp
@@ -139,7 +139,8 @@
VariantWith<NotifyMotionArgs>(WithMotionAction(ACTION_DOWN)),
VariantWith<NotifyMotionArgs>(WithMotionAction(BUTTON_PRESS)),
VariantWith<NotifyMotionArgs>(WithMotionAction(BUTTON_RELEASE)),
- VariantWith<NotifyMotionArgs>(WithMotionAction(ACTION_UP))));
+ VariantWith<NotifyMotionArgs>(WithMotionAction(ACTION_UP)),
+ VariantWith<NotifyMotionArgs>(WithMotionAction(HOVER_MOVE))));
// Liftoff
args.clear();