internal void SetElementUnderMouse(VisualElement newElementUnderMouse, EventBase triggerEvent)
{
if (newElementUnderMouse == topElementUnderMouse)
{
return;
}
VisualElement previousTopElementUnderMouse = topElementUnderMouse;
topElementUnderMouse = newElementUnderMouse;
IMouseEvent mouseEvent = triggerEvent == null ? null : triggerEvent as IMouseEvent;
var mousePosition = mouseEvent == null
? MousePositionTracker.mousePosition
: mouseEvent?.mousePosition ?? Vector2.zero;
// mouse enter/leave must be dispatched *any* time the element under mouse changes
using (new EventDispatcherGate(dispatcher))
{
MouseEventsHelper.SendEnterLeave <MouseLeaveEvent, MouseEnterEvent>(previousTopElementUnderMouse, topElementUnderMouse, mouseEvent, mousePosition);
}
if (triggerEvent == null ||
triggerEvent.eventTypeId == MouseMoveEvent.TypeId() ||
triggerEvent.eventTypeId == MouseDownEvent.TypeId() ||
triggerEvent.eventTypeId == MouseUpEvent.TypeId() ||
triggerEvent.eventTypeId == MouseEnterWindowEvent.TypeId() ||
triggerEvent.eventTypeId == MouseLeaveWindowEvent.TypeId() ||
triggerEvent.eventTypeId == WheelEvent.TypeId())
{
using (new EventDispatcherGate(dispatcher))
{
MouseEventsHelper.SendMouseOverMouseOut(previousTopElementUnderMouse, topElementUnderMouse, mouseEvent, mousePosition);
}
}
else if (triggerEvent.eventTypeId == DragUpdatedEvent.TypeId() ||
triggerEvent.eventTypeId == DragExitedEvent.TypeId())
{
using (new EventDispatcherGate(dispatcher))
{
MouseEventsHelper.SendEnterLeave <DragLeaveEvent, DragEnterEvent>(previousTopElementUnderMouse, topElementUnderMouse, mouseEvent, mousePosition);
}
}
}
internal void SetElementUnderMouse(VisualElement newElementUnderMouse, EventBase triggerEvent)
{
if (newElementUnderMouse == topElementUnderMouse)
{
return;
}
VisualElement previousTopElementUnderMouse = topElementUnderMouse;
topElementUnderMouse = newElementUnderMouse;
if (triggerEvent == null)
{
using (new EventDispatcherGate(dispatcher))
{
MouseEventsHelper.SendEnterLeave <MouseLeaveEvent, MouseEnterEvent>(previousTopElementUnderMouse, topElementUnderMouse, null, MousePositionTracker.mousePosition);
MouseEventsHelper.SendMouseOverMouseOut(previousTopElementUnderMouse, topElementUnderMouse, null, MousePositionTracker.mousePosition);
}
}
else if (
triggerEvent.eventTypeId == MouseMoveEvent.TypeId() ||
triggerEvent.eventTypeId == MouseDownEvent.TypeId() ||
triggerEvent.eventTypeId == MouseUpEvent.TypeId() ||
triggerEvent.eventTypeId == MouseEnterWindowEvent.TypeId() ||
triggerEvent.eventTypeId == MouseLeaveWindowEvent.TypeId() ||
triggerEvent.eventTypeId == WheelEvent.TypeId())
{
IMouseEvent mouseEvent = triggerEvent as IMouseEvent;
using (new EventDispatcherGate(dispatcher))
{
MouseEventsHelper.SendEnterLeave <MouseLeaveEvent, MouseEnterEvent>(previousTopElementUnderMouse, topElementUnderMouse, mouseEvent, mouseEvent?.mousePosition ?? Vector2.zero);
MouseEventsHelper.SendMouseOverMouseOut(previousTopElementUnderMouse, topElementUnderMouse, mouseEvent, mouseEvent?.mousePosition ?? Vector2.zero);
}
}
else if (triggerEvent.eventTypeId == DragUpdatedEvent.TypeId() ||
triggerEvent.eventTypeId == DragExitedEvent.TypeId())
{
IMouseEvent mouseEvent = triggerEvent as IMouseEvent;
using (new EventDispatcherGate(dispatcher))
{
MouseEventsHelper.SendEnterLeave <DragLeaveEvent, DragEnterEvent>(previousTopElementUnderMouse, topElementUnderMouse, mouseEvent, mouseEvent?.mousePosition ?? Vector2.zero);
}
}
}
internal void CommitElementUnderPointers(EventDispatcher dispatcher)
{
for (int i = 0; i < this.m_TopElementUnderPointer.Length; i++)
{
IPointerEvent pointerEvent = this.m_TriggerPointerEvent[i];
VisualElement visualElement = this.m_TopElementUnderPointer[i];
VisualElement visualElement2 = this.m_PendingTopElementUnderPointer[i];
bool flag = visualElement2 == visualElement;
if (flag)
{
bool flag2 = pointerEvent != null;
if (flag2)
{
Vector3 position = pointerEvent.position;
this.m_PickingPointerPositions[i] = new Vector2(position.x, position.y);
}
else
{
bool flag3 = this.m_TriggerMouseEvent[i] != null;
if (flag3)
{
this.m_PickingPointerPositions[i] = this.m_TriggerMouseEvent[i].mousePosition;
}
}
}
else
{
this.m_TopElementUnderPointer[i] = visualElement2;
bool flag4 = pointerEvent == null && this.m_TriggerMouseEvent[i] == null;
if (flag4)
{
using (new EventDispatcherGate(dispatcher))
{
Vector2 pointerPosition = PointerDeviceState.GetPointerPosition(i);
PointerEventsHelper.SendOverOut(visualElement, visualElement2, null, pointerPosition, i);
PointerEventsHelper.SendEnterLeave <PointerLeaveEvent, PointerEnterEvent>(visualElement, visualElement2, null, pointerPosition, i);
this.m_PickingPointerPositions[i] = pointerPosition;
bool flag5 = i == PointerId.mousePointerId;
if (flag5)
{
MouseEventsHelper.SendMouseOverMouseOut(visualElement, visualElement2, null, pointerPosition);
MouseEventsHelper.SendEnterLeave <MouseLeaveEvent, MouseEnterEvent>(visualElement, visualElement2, null, pointerPosition);
}
}
}
bool flag6 = pointerEvent != null;
if (flag6)
{
Vector3 position2 = pointerEvent.position;
this.m_PickingPointerPositions[i] = new Vector2(position2.x, position2.y);
EventBase eventBase = pointerEvent as EventBase;
bool flag7 = eventBase != null && (eventBase.eventTypeId == EventBase <PointerMoveEvent> .TypeId() || eventBase.eventTypeId == EventBase <PointerDownEvent> .TypeId() || eventBase.eventTypeId == EventBase <PointerUpEvent> .TypeId() || eventBase.eventTypeId == EventBase <PointerCancelEvent> .TypeId());
if (flag7)
{
using (new EventDispatcherGate(dispatcher))
{
PointerEventsHelper.SendOverOut(visualElement, visualElement2, pointerEvent, position2, i);
PointerEventsHelper.SendEnterLeave <PointerLeaveEvent, PointerEnterEvent>(visualElement, visualElement2, pointerEvent, position2, i);
}
}
}
this.m_TriggerPointerEvent[i] = null;
IMouseEvent mouseEvent = this.m_TriggerMouseEvent[i];
bool flag8 = mouseEvent != null;
if (flag8)
{
Vector2 mousePosition = mouseEvent.mousePosition;
this.m_PickingPointerPositions[i] = mousePosition;
EventBase eventBase2 = mouseEvent as EventBase;
bool flag9 = eventBase2 != null;
if (flag9)
{
bool flag10 = eventBase2.eventTypeId == EventBase <MouseMoveEvent> .TypeId() || eventBase2.eventTypeId == EventBase <MouseDownEvent> .TypeId() || eventBase2.eventTypeId == EventBase <MouseUpEvent> .TypeId() || eventBase2.eventTypeId == EventBase <WheelEvent> .TypeId();
if (flag10)
{
using (new EventDispatcherGate(dispatcher))
{
MouseEventsHelper.SendMouseOverMouseOut(visualElement, visualElement2, mouseEvent, mousePosition);
MouseEventsHelper.SendEnterLeave <MouseLeaveEvent, MouseEnterEvent>(visualElement, visualElement2, mouseEvent, mousePosition);
}
}
else
{
bool flag11 = eventBase2.eventTypeId == EventBase <MouseEnterWindowEvent> .TypeId() || eventBase2.eventTypeId == EventBase <MouseLeaveWindowEvent> .TypeId();
if (flag11)
{
using (new EventDispatcherGate(dispatcher))
{
PointerEventsHelper.SendOverOut(visualElement, visualElement2, null, mousePosition, i);
PointerEventsHelper.SendEnterLeave <PointerLeaveEvent, PointerEnterEvent>(visualElement, visualElement2, null, mousePosition, i);
bool flag12 = i == PointerId.mousePointerId;
if (flag12)
{
MouseEventsHelper.SendMouseOverMouseOut(visualElement, visualElement2, mouseEvent, mousePosition);
MouseEventsHelper.SendEnterLeave <MouseLeaveEvent, MouseEnterEvent>(visualElement, visualElement2, mouseEvent, mousePosition);
}
}
}
else
{
bool flag13 = eventBase2.eventTypeId == EventBase <DragUpdatedEvent> .TypeId() || eventBase2.eventTypeId == EventBase <DragExitedEvent> .TypeId();
if (flag13)
{
using (new EventDispatcherGate(dispatcher))
{
PointerEventsHelper.SendOverOut(visualElement, visualElement2, null, mousePosition, i);
PointerEventsHelper.SendEnterLeave <PointerLeaveEvent, PointerEnterEvent>(visualElement, visualElement2, null, mousePosition, i);
MouseEventsHelper.SendMouseOverMouseOut(visualElement, visualElement2, mouseEvent, mousePosition);
MouseEventsHelper.SendEnterLeave <MouseLeaveEvent, MouseEnterEvent>(visualElement, visualElement2, mouseEvent, mousePosition);
MouseEventsHelper.SendEnterLeave <DragLeaveEvent, DragEnterEvent>(visualElement, visualElement2, mouseEvent, mousePosition);
}
}
}
}
}
this.m_TriggerMouseEvent[i] = null;
}
}
}
}