protected new void ProcessMouseEvent(int id)
{
var mouseData = GetMousePointerEventData(id);
var leftButtonData = mouseData.GetButtonState(PointerEventData.InputButton.Left).eventData;
CurrentPointerEx = leftButtonData.buttonData as UPointerEventDataEx;
// Process the first mouse button fully
ProcessMousePress(leftButtonData);
ProcessMove(leftButtonData.buttonData);
ProcessDrag(leftButtonData.buttonData);
// Now process right / middle clicks
var rightButtonData = mouseData.GetButtonState(PointerEventData.InputButton.Right).eventData;
CurrentPointerEx = rightButtonData.buttonData as UPointerEventDataEx;
ProcessMousePress(rightButtonData);
ProcessDrag(rightButtonData.buttonData);
var middleButtonData = mouseData.GetButtonState(PointerEventData.InputButton.Middle).eventData;
CurrentPointerEx = rightButtonData.buttonData as UPointerEventDataEx;
ProcessMousePress(middleButtonData);
ProcessDrag(middleButtonData.buttonData);
if (!Mathf.Approximately(leftButtonData.buttonData.scrollDelta.sqrMagnitude, 0.0f))
{
var scrollHandler = ExecuteEvents.GetEventHandler <IScrollHandler>(leftButtonData.buttonData.pointerCurrentRaycast.gameObject);
UExecuteEventsEx.ExecuteHierarchy(scrollHandler, leftButtonData.buttonData, ExecuteEvents.scrollHandler);
}
//CurrentPointerEx = null;
}
protected new void ProcessMousePress(MouseButtonEventData data)
{
var pointerEvent = data.buttonData;
var currentOverGo = pointerEvent.pointerCurrentRaycast.gameObject;
// PointerDown notification
if (data.PressedThisFrame())
{
pointerEvent.eligibleForClick = true;
pointerEvent.delta = Vector2.zero;
pointerEvent.dragging = false;
pointerEvent.useDragThreshold = true;
pointerEvent.pressPosition = pointerEvent.position;
pointerEvent.pointerPressRaycast = pointerEvent.pointerCurrentRaycast;
DeselectIfSelectionChanged(currentOverGo, pointerEvent);
// search for the control that will receive the press
// if we can't find a press handler set the press
// handler to be what would receive a click.
//原来不会冒泡是酱紫的： var newPressed = ExecuteEvents.ExecuteHierarchy(currentOverGo, pointerEvent, ExecuteEvents.pointerDownHandler);
var newPressed = UExecuteEventsEx.ExecuteHierarchy(currentOverGo, pointerEvent, ExecuteEvents.pointerDownHandler);
// didnt find a press handler... search for a click handler
if (newPressed == null || newPressed != currentOverGo)
{
newPressed = ExecuteEvents.GetEventHandler <IPointerClickHandler>(currentOverGo);
}
// Debug.Log("Pressed: " + newPressed);
float time = Time.unscaledTime;
if (newPressed == pointerEvent.lastPress)
{
var diffTime = time - pointerEvent.clickTime;
if (diffTime < 0.3f)
{
++pointerEvent.clickCount;
}
else
{
pointerEvent.clickCount = 1;
}
pointerEvent.clickTime = time;
}
else
{
pointerEvent.clickCount = 1;
}
pointerEvent.pointerPress = newPressed;
pointerEvent.rawPointerPress = currentOverGo;
pointerEvent.clickTime = time;
// Save the drag handler as well
pointerEvent.pointerDrag = ExecuteEvents.GetEventHandler <IDragHandler>(currentOverGo);
if (pointerEvent.pointerDrag != null)
{
ExecuteEvents.Execute(pointerEvent.pointerDrag, pointerEvent, ExecuteEvents.initializePotentialDrag);
}
}
// PointerUp notification
if (data.ReleasedThisFrame())
{
// Debug.Log("Executing pressup on: " + pointer.pointerPress);
//ExecuteEvents.Execute(pointerEvent.pointerPress, pointerEvent, ExecuteEvents.pointerUpHandler);
UExecuteEventsEx.ExecuteEx(pointerEvent.pointerPress, pointerEvent, ExecuteEvents.pointerUpHandler);
// Debug.Log("KeyCode: " + pointer.eventData.keyCode);
// see if we mouse up on the same element that we clicked on...
var pointerUpHandler = ExecuteEvents.GetEventHandler <IPointerClickHandler>(currentOverGo);
// PointerClick and Drop events
if (pointerEvent.pointerPress == pointerUpHandler && pointerEvent.eligibleForClick)
{
UExecuteEventsEx.ExecuteEx(pointerEvent.pointerPress, pointerEvent, ExecuteEvents.pointerClickHandler);
}
else if (pointerEvent.pointerDrag != null && pointerEvent.dragging)
{
UExecuteEventsEx.ExecuteHierarchy(currentOverGo, pointerEvent, ExecuteEvents.dropHandler);
}
pointerEvent.eligibleForClick = false;
pointerEvent.pointerPress = null;
pointerEvent.rawPointerPress = null;
if (pointerEvent.pointerDrag != null && pointerEvent.dragging)
{
ExecuteEvents.Execute(pointerEvent.pointerDrag, pointerEvent, ExecuteEvents.endDragHandler);
}
pointerEvent.dragging = false;
pointerEvent.pointerDrag = null;
// redo pointer enter / exit to refresh state
// so that if we moused over somethign that ignored it before
// due to having pressed on something else
// it now gets it.
if (currentOverGo != pointerEvent.pointerEnter)
{
HandlePointerExitAndEnter(pointerEvent, null);
HandlePointerExitAndEnter(pointerEvent, currentOverGo);
}
}
}
