protected internal override void ExecuteDefaultAction(EventBase evt)
{
base.ExecuteDefaultAction(evt);
if (evt.GetEventTypeId() == MouseOverEvent.TypeId() || evt.GetEventTypeId() == MouseOutEvent.TypeId())
{
UpdateCursorStyle(evt.GetEventTypeId());
}
else if (evt.GetEventTypeId() == MouseEnterEvent.TypeId())
{
pseudoStates |= PseudoStates.Hover;
}
else if (evt.GetEventTypeId() == MouseLeaveEvent.TypeId())
{
pseudoStates &= ~PseudoStates.Hover;
}
else if (evt.GetEventTypeId() == BlurEvent.TypeId())
{
pseudoStates = pseudoStates & ~PseudoStates.Focus;
}
else if (evt.GetEventTypeId() == FocusEvent.TypeId())
{
pseudoStates = pseudoStates | PseudoStates.Focus;
}
}
private void DispatchMouseEnterMouseLeave(VisualElement previousTopElementUnderMouse, VisualElement currentTopElementUnderMouse, IMouseEvent triggerEvent)
{
if (previousTopElementUnderMouse != currentTopElementUnderMouse)
{
int i = 0;
VisualElement visualElement;
for (visualElement = previousTopElementUnderMouse; visualElement != null; visualElement = visualElement.shadow.parent)
{
i++;
}
int j = 0;
VisualElement visualElement2;
for (visualElement2 = currentTopElementUnderMouse; visualElement2 != null; visualElement2 = visualElement2.shadow.parent)
{
j++;
}
visualElement = previousTopElementUnderMouse;
visualElement2 = currentTopElementUnderMouse;
while (i > j)
{
MouseLeaveEvent pooled = MouseEventBase <MouseLeaveEvent> .GetPooled(triggerEvent);
pooled.target = visualElement;
this.DispatchEvent(pooled, visualElement.panel);
EventBase <MouseLeaveEvent> .ReleasePooled(pooled);
i--;
visualElement = visualElement.shadow.parent;
}
List <VisualElement> list = new List <VisualElement>(j);
while (j > i)
{
list.Add(visualElement2);
j--;
visualElement2 = visualElement2.shadow.parent;
}
while (visualElement != visualElement2)
{
MouseLeaveEvent pooled2 = MouseEventBase <MouseLeaveEvent> .GetPooled(triggerEvent);
pooled2.target = visualElement;
this.DispatchEvent(pooled2, visualElement.panel);
EventBase <MouseLeaveEvent> .ReleasePooled(pooled2);
list.Add(visualElement2);
visualElement = visualElement.shadow.parent;
visualElement2 = visualElement2.shadow.parent;
}
for (int k = list.Count - 1; k >= 0; k--)
{
MouseEnterEvent pooled3 = MouseEventBase <MouseEnterEvent> .GetPooled(triggerEvent);
pooled3.target = list[k];
this.DispatchEvent(pooled3, list[k].panel);
EventBase <MouseEnterEvent> .ReleasePooled(pooled3);
}
}
}
void DispatchMouseEnterMouseLeave(VisualElement previousTopElementUnderMouse, VisualElement currentTopElementUnderMouse, IMouseEvent triggerEvent)
{
DispatchEnterLeave(previousTopElementUnderMouse, currentTopElementUnderMouse, () => MouseEnterEvent.GetPooled(triggerEvent), () => MouseLeaveEvent.GetPooled(triggerEvent));
}
void DispatchMouseEnterMouseLeave(VisualElement previousTopElementUnderMouse, VisualElement currentTopElementUnderMouse, Event triggerEvent)
{
if (previousTopElementUnderMouse == currentTopElementUnderMouse)
{
return;
}
// We want to find the common ancestor CA of previousTopElementUnderMouse and currentTopElementUnderMouse,
// send MouseLeave events to elements between CA and previousTopElementUnderMouse
// and send MouseEnter events to elements between CA and currentTopElementUnderMouse.
int prevDepth = 0;
var p = previousTopElementUnderMouse;
while (p != null)
{
prevDepth++;
p = p.shadow.parent;
}
int currDepth = 0;
var c = currentTopElementUnderMouse;
while (c != null)
{
currDepth++;
c = c.shadow.parent;
}
p = previousTopElementUnderMouse;
c = currentTopElementUnderMouse;
while (prevDepth > currDepth)
{
using (var leaveEvent = MouseLeaveEvent.GetPooled(triggerEvent))
{
leaveEvent.target = p;
DispatchEvent(leaveEvent, p.panel);
}
prevDepth--;
p = p.shadow.parent;
}
// We want to send enter events after all the leave events.
// We will store the elements being entered in this list.
List <VisualElement> enteringElements = new List <VisualElement>(currDepth);
while (currDepth > prevDepth)
{
enteringElements.Add(c);
currDepth--;
c = c.shadow.parent;
}
// Now p and c are at the same depth. Go up the tree until p == c.
while (p != c)
{
using (var leaveEvent = MouseLeaveEvent.GetPooled(triggerEvent))
{
leaveEvent.target = p;
DispatchEvent(leaveEvent, p.panel);
}
enteringElements.Add(c);
p = p.shadow.parent;
c = c.shadow.parent;
}
for (var i = enteringElements.Count - 1; i >= 0; i--)
{
using (var enterEvent = MouseEnterEvent.GetPooled(triggerEvent))
{
enterEvent.target = enteringElements[i];
DispatchEvent(enterEvent, enteringElements[i].panel);
}
}
}
public void DispatchEvent(EventBase evt, IPanel panel)
{
Event e = evt.imguiEvent;
if (e != null && e.type == EventType.Repaint)
{
return;
}
if (panel != null && panel.panelDebug != null && panel.panelDebug.enabled && panel.panelDebug.interceptEvents != null)
{
if (panel.panelDebug.interceptEvents(e))
{
evt.StopPropagation();
return;
}
}
bool invokedHandleEvent = false;
VisualElement captureVE = null;
// Send all IMGUI events (for backward compatibility) and MouseEvents (because thats what we want to do in the new system)
// to the capture, if there is one.
if ((evt is IMouseEvent || e != null) && MouseCaptureController.mouseCapture != null)
{
captureVE = MouseCaptureController.mouseCapture as VisualElement;
if (captureVE != null && captureVE.panel == null)
{
Debug.Log(String.Format("Capture has no panel, forcing removal (capture={0} eventType={1})", MouseCaptureController.mouseCapture, e != null ? e.type.ToString() : "null"));
MouseCaptureController.ReleaseMouseCapture();
captureVE = null;
}
if (panel != null)
{
if (captureVE != null && captureVE.panel.contextType != panel.contextType)
{
return;
}
}
invokedHandleEvent = true;
evt.dispatch = true;
if (MouseCaptureController.mouseCapture != null)
{
evt.target = MouseCaptureController.mouseCapture;
evt.currentTarget = MouseCaptureController.mouseCapture;
evt.propagationPhase = PropagationPhase.AtTarget;
MouseCaptureController.mouseCapture.HandleEvent(evt);
}
evt.propagationPhase = PropagationPhase.None;
evt.currentTarget = null;
evt.dispatch = false;
}
if (evt.isPropagationStopped)
{
// Make sure to call default actions at target, but dont call it twice on mouse capture
if (evt.target == null && panel != null)
{
evt.target = panel.visualTree;
}
if (evt.target != null && evt.target != MouseCaptureController.mouseCapture)
{
evt.dispatch = true;
evt.currentTarget = evt.target;
evt.propagationPhase = PropagationPhase.AtTarget;
evt.target.HandleEvent(evt);
evt.propagationPhase = PropagationPhase.None;
evt.currentTarget = null;
evt.dispatch = false;
}
}
if (!evt.isPropagationStopped)
{
if (evt is IKeyboardEvent && panel != null)
{
if (panel.focusController.focusedElement != null)
{
IMGUIContainer imguiContainer = panel.focusController.focusedElement as IMGUIContainer;
invokedHandleEvent = true;
if (imguiContainer != null)
{
if (imguiContainer.HandleIMGUIEvent(evt.imguiEvent))
{
evt.StopPropagation();
evt.PreventDefault();
}
}
else
{
evt.target = panel.focusController.focusedElement;
PropagateEvent(evt);
}
}
else
{
evt.target = panel.visualTree;
PropagateEvent(evt);
// Force call to PropagateToIMGUIContainer(), even if capture != null.
invokedHandleEvent = false;
}
}
else if (evt.GetEventTypeId() == MouseEnterEvent.TypeId() ||
evt.GetEventTypeId() == MouseLeaveEvent.TypeId())
{
Debug.Assert(evt.target != null);
invokedHandleEvent = true;
PropagateEvent(evt);
}
else if (evt is IMouseEvent || (
e != null && (
e.type == EventType.ContextClick ||
e.type == EventType.DragUpdated ||
e.type == EventType.DragPerform ||
e.type == EventType.DragExited
)
))
{
// FIXME: we should not change hover state when capture is true.
// However, when doing drag and drop, drop target should be highlighted.
// TODO when EditorWindow is docked MouseLeaveWindow is not always sent
// this is a problem in itself but it could leave some elements as "hover"
VisualElement currentTopElementUnderMouse = m_TopElementUnderMouse;
if (evt.GetEventTypeId() == MouseLeaveWindowEvent.TypeId())
{
m_TopElementUnderMouse = null;
DispatchMouseEnterMouseLeave(currentTopElementUnderMouse, m_TopElementUnderMouse, e);
DispatchMouseOverMouseOut(currentTopElementUnderMouse, m_TopElementUnderMouse, e);
}
// update element under mouse and fire necessary events
else if (evt is IMouseEvent || e != null)
{
if (evt.target == null && panel != null)
{
if (evt is IMouseEvent)
{
m_TopElementUnderMouse = panel.Pick((evt as IMouseEvent).localMousePosition);
}
else if (e != null)
{
m_TopElementUnderMouse = panel.Pick(e.mousePosition);
}
evt.target = m_TopElementUnderMouse;
}
if (evt.target != null)
{
invokedHandleEvent = true;
PropagateEvent(evt);
}
if (evt.GetEventTypeId() == MouseMoveEvent.TypeId() ||
evt.GetEventTypeId() == MouseEnterWindowEvent.TypeId() ||
evt.GetEventTypeId() == WheelEvent.TypeId() ||
(e != null && e.type == EventType.DragUpdated))
{
DispatchMouseEnterMouseLeave(currentTopElementUnderMouse, m_TopElementUnderMouse, e);
DispatchMouseOverMouseOut(currentTopElementUnderMouse, m_TopElementUnderMouse, e);
}
}
}
else if (panel != null && e != null && (e.type == EventType.ExecuteCommand || e.type == EventType.ValidateCommand))
{
IMGUIContainer imguiContainer = panel.focusController.focusedElement as IMGUIContainer;
if (imguiContainer != null)
{
invokedHandleEvent = true;
if (imguiContainer.HandleIMGUIEvent(evt.imguiEvent))
{
evt.StopPropagation();
evt.PreventDefault();
}
}
else if (panel.focusController.focusedElement != null)
{
invokedHandleEvent = true;
evt.target = panel.focusController.focusedElement;
PropagateEvent(evt);
}
else
{
invokedHandleEvent = true;
PropagateToIMGUIContainer(panel.visualTree, evt, captureVE);
}
}
else if (evt is IPropagatableEvent ||
evt is IFocusEvent ||
evt is IChangeEvent ||
evt.GetEventTypeId() == InputEvent.TypeId() ||
evt.GetEventTypeId() == PostLayoutEvent.TypeId())
{
Debug.Assert(evt.target != null);
invokedHandleEvent = true;
PropagateEvent(evt);
}
}
if (!evt.isPropagationStopped && e != null && panel != null)
{
if (!invokedHandleEvent || e != null && (
e.type == EventType.MouseEnterWindow ||
e.type == EventType.MouseLeaveWindow ||
e.type == EventType.Used
))
{
PropagateToIMGUIContainer(panel.visualTree, evt, captureVE);
}
}
if (evt.target == null && panel != null)
{
evt.target = panel.visualTree;
}
ExecuteDefaultAction(evt);
}
void DispatchMouseEnterMouseLeave(VisualElement previousTopElementUnderMouse, VisualElement currentTopElementUnderMouse, IMouseEvent triggerEvent)
{
if (triggerEvent != null)
{
DispatchEnterLeave(previousTopElementUnderMouse, currentTopElementUnderMouse, () => MouseEnterEvent.GetPooled(triggerEvent), () => MouseLeaveEvent.GetPooled(triggerEvent));
}
else
{
DispatchEnterLeave(previousTopElementUnderMouse, currentTopElementUnderMouse, () => MouseEnterEvent.GetPooled(m_LastMousePosition), () => MouseLeaveEvent.GetPooled(m_LastMousePosition));
}
}