Add MotionEvent.HOVER_ENTER and HOVER_EXIT.
The input dispatcher sends a HOVER_ENTER to a window before dispatching
it any HOVER_MOVE events. For compatibility reasons, the window will
*also* receive the HOVER_MOVE. When the pointer moves into a different
window or the pointer goes down or when events are canceled for some reason,
the input dispatcher sends a HOVER_EXIT to the previously hovered window.
The view hierarchy behavior is similar. All views under the pointer
receive onHoverEvent with HOVER_ENTER followed by any number of HOVER_MOVE
events. When the pointer leaves a view, the view receives HOVER_EXIT.
Similarly, if a parent view decides to capture hover by returning true
from onHoverEvent, the hovered descendants will receive HOVER_EXIT.
The default behavior of onHoverEvent is to update the view's hovered
state by calling setHovered(true/false). Views can query their current
hovered state using isHovered().
For testing purposes, the hovered state is mapped to the pressed
drawable state. This will change in a subsequent commit with the
introduction of a new hovered drawable state.
Change-Id: Ib76a7a90236c8f2c7336e55773acade6346cacbe
diff --git a/services/input/InputReader.cpp b/services/input/InputReader.cpp
index 94753bf..82cf62f 100644
--- a/services/input/InputReader.cpp
+++ b/services/input/InputReader.cpp
@@ -1605,8 +1605,15 @@
motionEventAction, 0, metaState, motionEventEdgeFlags,
1, &pointerId, &pointerCoords, mXPrecision, mYPrecision, downTime);
- mAccumulator.clear();
+ // Send hover move after UP to tell the application that the mouse is hovering now.
+ if (motionEventAction == AMOTION_EVENT_ACTION_UP
+ && mPointerController != NULL) {
+ getDispatcher()->notifyMotion(when, getDeviceId(), mSource, policyFlags,
+ AMOTION_EVENT_ACTION_HOVER_MOVE, 0, metaState, AMOTION_EVENT_EDGE_FLAG_NONE,
+ 1, &pointerId, &pointerCoords, mXPrecision, mYPrecision, downTime);
+ }
+ // Send scroll events.
if (vscroll != 0 || hscroll != 0) {
pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_VSCROLL, vscroll);
pointerCoords.setAxisValue(AMOTION_EVENT_AXIS_HSCROLL, hscroll);
@@ -1615,6 +1622,8 @@
AMOTION_EVENT_ACTION_SCROLL, 0, metaState, AMOTION_EVENT_EDGE_FLAG_NONE,
1, &pointerId, &pointerCoords, mXPrecision, mYPrecision, downTime);
}
+
+ mAccumulator.clear();
}
int32_t CursorInputMapper::getScanCodeState(uint32_t sourceMask, int32_t scanCode) {