public static void ReleaseMouseCapture(this IEventHandler handler)
{
Debug.Assert(handler == MouseCaptureController.mouseCapture, "Element releasing capture does not have capture");
if (handler == MouseCaptureController.mouseCapture)
{
MouseCaptureController.ReleaseMouseCapture();
}
}
private static void TakeCapture()
{
if (s_ContainerStack.Count > 0)
{
var topmostContainer = s_ContainerStack.Peek();
if (MouseCaptureController.IsMouseCaptured() && !topmostContainer.HasMouseCapture())
{
Debug.Log("Should not grab hot control with an active capture");
}
topmostContainer.CaptureMouse();
}
}
private static void TakeCapture()
{
if (UIElementsUtility.s_ContainerStack.Count > 0)
{
IMGUIContainer iMGUIContainer = UIElementsUtility.s_ContainerStack.Peek();
if (iMGUIContainer.GUIDepth == GUIUtility.Internal_GetGUIDepth())
{
if (MouseCaptureController.IsMouseCaptureTaken() && !iMGUIContainer.HasMouseCapture())
{
Debug.Log("Should not grab hot control with an active capture");
}
iMGUIContainer.TakeMouseCapture();
}
}
}
protected bool CanStartManipulation(IMouseEvent e)
{
if (MouseCaptureController.IsMouseCaptureTaken())
{
return(false);
}
foreach (var activator in activators)
{
if (activator.Matches(e))
{
m_currentActivator = activator;
return(true);
}
}
return(false);
}
private static void TakeCapture()
{
if (s_ContainerStack.Count > 0)
{
var topmostContainer = s_ContainerStack.Peek();
if (topmostContainer.GUIDepth != GUIUtility.Internal_GetGUIDepth())
{
return;
}
if (MouseCaptureController.IsMouseCaptureTaken() && !topmostContainer.HasMouseCapture())
{
Debug.Log("Should not grab hot control with an active capture");
}
topmostContainer.TakeMouseCapture();
}
}
public static void TakeMouseCapture(this IEventHandler handler)
{
if (MouseCaptureController.mouseCapture != handler)
{
if (GUIUtility.hotControl != 0)
{
Debug.Log("Should not be capturing when there is a hotcontrol");
}
else
{
MouseCaptureController.ReleaseMouseCapture();
MouseCaptureController.mouseCapture = handler;
using (MouseCaptureEvent pooled = MouseCaptureEventBase <MouseCaptureEvent> .GetPooled(MouseCaptureController.mouseCapture))
{
UIElementsUtility.eventDispatcher.DispatchEvent(pooled, null);
}
}
}
}
protected bool CanStartManipulation(IMouseEvent e)
{
bool result;
if (MouseCaptureController.IsMouseCaptureTaken())
{
result = false;
}
else
{
foreach (ManipulatorActivationFilter current in this.activators)
{
if (current.Matches(e))
{
this.m_currentActivator = current;
result = true;
return(result);
}
}
result = false;
}
return(result);
}
public void DispatchEvent(EventBase evt, IPanel panel)
{
if (evt.GetEventTypeId() == IMGUIEvent.TypeId())
{
Event e = evt.imguiEvent;
if (e.type == EventType.Repaint)
{
return;
}
}
if (panel != null && panel.panelDebug != null && panel.panelDebug.enabled && panel.panelDebug.interceptEvents != null)
{
if (panel.panelDebug.interceptEvents(evt.imguiEvent))
{
evt.StopPropagation();
return;
}
}
IMouseEvent mouseEvent = evt as IMouseEvent;
IMouseEventInternal mouseEventInternal = evt as IMouseEventInternal;
if (mouseEvent != null && mouseEventInternal != null && mouseEventInternal.hasUnderlyingPhysicalEvent)
{
m_LastMousePosition = mouseEvent.mousePosition;
}
bool eventHandled = false;
// Release mouse capture if capture element is not in a panel.
VisualElement captureVE = MouseCaptureController.mouseCapture as VisualElement;
if (evt.GetEventTypeId() != MouseCaptureOutEvent.TypeId() && captureVE != null && captureVE.panel == null)
{
Event e = evt.imguiEvent;
Debug.Log(String.Format("Capture has no panel, forcing removal (capture={0} eventType={1})", MouseCaptureController.mouseCapture, e != null ? e.type.ToString() : "null"));
MouseCaptureController.ReleaseMouseCapture();
}
// Send all IMGUI events (for backward compatibility) and MouseEvents with null target (because thats what we want to do in the new system)
// to the capture, if there is one. Note that events coming from IMGUI have their target set to null.
bool sendEventToMouseCapture = false;
bool mouseEventWasCaptured = false;
if (MouseCaptureController.mouseCapture != null)
{
if (evt.imguiEvent != null && evt.target == null)
{
// Non exclusive processing by capturing element.
sendEventToMouseCapture = true;
mouseEventWasCaptured = false;
}
if (mouseEvent != null && (evt.target == null || evt.target == MouseCaptureController.mouseCapture))
{
// Exclusive processing by capturing element.
sendEventToMouseCapture = true;
mouseEventWasCaptured = true;
}
if (panel != null)
{
if (captureVE != null && captureVE.panel.contextType != panel.contextType)
{
// Capturing element is not in the right context. Ignore it.
sendEventToMouseCapture = false;
mouseEventWasCaptured = false;
}
}
}
evt.skipElement = null;
if (sendEventToMouseCapture)
{
IEventHandler originalCaptureElement = MouseCaptureController.mouseCapture;
eventHandled = true;
evt.dispatch = true;
evt.target = MouseCaptureController.mouseCapture;
evt.currentTarget = MouseCaptureController.mouseCapture;
evt.propagationPhase = PropagationPhase.AtTarget;
MouseCaptureController.mouseCapture.HandleEvent(evt);
// Do further processing with a target computed the usual way.
// However, if mouseEventWasCaptured, the only thing remaining to do is ExecuteDefaultAction,
// which whould be done with mouseCapture as the target.
if (!mouseEventWasCaptured)
{
evt.target = null;
}
evt.currentTarget = null;
evt.propagationPhase = PropagationPhase.None;
evt.dispatch = false;
// Do not call HandleEvent again for this element.
evt.skipElement = originalCaptureElement;
}
if (!mouseEventWasCaptured && !evt.isPropagationStopped)
{
if (evt is IKeyboardEvent && panel != null)
{
eventHandled = true;
if (panel.focusController.focusedElement != null)
{
IMGUIContainer imguiContainer = panel.focusController.focusedElement as IMGUIContainer;
if (imguiContainer != null)
{
// THINK ABOUT THIS PF: shoudln't we allow for the capture dispatch phase?
if (imguiContainer != evt.skipElement && imguiContainer.HandleIMGUIEvent(evt.imguiEvent))
{
evt.StopPropagation();
evt.PreventDefault();
}
}
else
{
evt.target = panel.focusController.focusedElement;
PropagateEvent(evt);
}
}
else
{
evt.target = panel.visualTree;
PropagateEvent(evt);
if (!evt.isPropagationStopped)
{
PropagateToIMGUIContainer(panel.visualTree, evt);
}
}
}
else if (mouseEvent != null)
{
// 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"
if (evt.GetEventTypeId() == MouseLeaveWindowEvent.TypeId())
{
VisualElement currentTopElementUnderMouse = m_TopElementUnderMouse;
m_TopElementUnderMouse = null;
DispatchMouseEnterMouseLeave(currentTopElementUnderMouse, m_TopElementUnderMouse, mouseEvent);
DispatchMouseOverMouseOut(currentTopElementUnderMouse, m_TopElementUnderMouse, mouseEvent);
}
else if (evt.GetEventTypeId() == DragExitedEvent.TypeId())
{
VisualElement currentTopElementUnderMouse = m_TopElementUnderMouse;
m_TopElementUnderMouse = null;
DispatchDragEnterDragLeave(currentTopElementUnderMouse, m_TopElementUnderMouse, mouseEvent);
}
// update element under mouse and fire necessary events
else
{
VisualElement currentTopElementUnderMouse = m_TopElementUnderMouse;
if (evt.target == null && panel != null)
{
m_TopElementUnderMouse = panel.Pick(mouseEvent.mousePosition);
evt.target = m_TopElementUnderMouse;
}
if (evt.target != null)
{
eventHandled = true;
PropagateEvent(evt);
}
if (evt.GetEventTypeId() == MouseMoveEvent.TypeId() ||
evt.GetEventTypeId() == MouseDownEvent.TypeId() ||
evt.GetEventTypeId() == MouseUpEvent.TypeId() ||
evt.GetEventTypeId() == MouseEnterWindowEvent.TypeId() ||
evt.GetEventTypeId() == WheelEvent.TypeId())
{
DispatchMouseEnterMouseLeave(currentTopElementUnderMouse, m_TopElementUnderMouse, mouseEvent);
DispatchMouseOverMouseOut(currentTopElementUnderMouse, m_TopElementUnderMouse, mouseEvent);
}
else if (evt.GetEventTypeId() == DragUpdatedEvent.TypeId())
{
DispatchDragEnterDragLeave(currentTopElementUnderMouse, m_TopElementUnderMouse, mouseEvent);
}
}
}
else if (panel != null && evt is ICommandEvent)
{
IMGUIContainer imguiContainer = panel.focusController.focusedElement as IMGUIContainer;
eventHandled = true;
if (imguiContainer != null)
{
if (imguiContainer != evt.skipElement && imguiContainer.HandleIMGUIEvent(evt.imguiEvent))
{
evt.StopPropagation();
evt.PreventDefault();
}
}
else if (panel.focusController.focusedElement != null)
{
evt.target = panel.focusController.focusedElement;
PropagateEvent(evt);
}
else
{
PropagateToIMGUIContainer(panel.visualTree, evt);
}
}
else if (evt is IPropagatableEvent ||
evt is IFocusEvent ||
evt is IChangeEvent ||
evt.GetEventTypeId() == InputEvent.TypeId() ||
evt.GetEventTypeId() == GeometryChangedEvent.TypeId())
{
Debug.Assert(evt.target != null);
eventHandled = true;
PropagateEvent(evt);
}
}
if (!mouseEventWasCaptured && !evt.isPropagationStopped && panel != null)
{
Event e = evt.imguiEvent;
if (!eventHandled || (e != null && e.type == EventType.Used) ||
evt.GetEventTypeId() == MouseEnterWindowEvent.TypeId() ||
evt.GetEventTypeId() == MouseLeaveWindowEvent.TypeId())
{
PropagateToIMGUIContainer(panel.visualTree, evt);
}
}
if (evt.target == null && panel != null)
{
evt.target = panel.visualTree;
}
ExecuteDefaultAction(evt);
}
public void DispatchEvent(EventBase evt, IPanel panel)
{
Event imguiEvent = evt.imguiEvent;
if (imguiEvent == null || imguiEvent.type != EventType.Repaint)
{
if (panel != null && panel.panelDebug != null && panel.panelDebug.enabled && panel.panelDebug.interceptEvents != null && panel.panelDebug.interceptEvents(imguiEvent))
{
evt.StopPropagation();
}
else
{
bool flag = false;
VisualElement visualElement = null;
if ((evt is IMouseEvent || imguiEvent != null) && MouseCaptureController.mouseCapture != null)
{
visualElement = (MouseCaptureController.mouseCapture as VisualElement);
if (visualElement != null && visualElement.panel == null)
{
Debug.Log(string.Format("Capture has no panel, forcing removal (capture={0} eventType={1})", MouseCaptureController.mouseCapture, (imguiEvent == null) ? "null" : imguiEvent.type.ToString()));
MouseCaptureController.ReleaseMouseCapture();
visualElement = null;
}
if (panel != null)
{
if (visualElement != null && visualElement.panel.contextType != panel.contextType)
{
return;
}
}
flag = 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)
{
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;
flag = true;
if (iMGUIContainer != null)
{
if (iMGUIContainer.HandleIMGUIEvent(evt.imguiEvent))
{
evt.StopPropagation();
evt.PreventDefault();
}
}
else
{
evt.target = panel.focusController.focusedElement;
EventDispatcher.PropagateEvent(evt);
}
}
else
{
evt.target = panel.visualTree;
EventDispatcher.PropagateEvent(evt);
flag = false;
}
}
else if (evt.GetEventTypeId() == EventBase <MouseEnterEvent> .TypeId() || evt.GetEventTypeId() == EventBase <MouseLeaveEvent> .TypeId())
{
Debug.Assert(evt.target != null);
flag = true;
EventDispatcher.PropagateEvent(evt);
}
else if (evt is IMouseEvent || (imguiEvent != null && (imguiEvent.type == EventType.ContextClick || imguiEvent.type == EventType.DragUpdated || imguiEvent.type == EventType.DragPerform || imguiEvent.type == EventType.DragExited)))
{
VisualElement topElementUnderMouse = this.m_TopElementUnderMouse;
if (evt.GetEventTypeId() == EventBase <MouseLeaveWindowEvent> .TypeId())
{
this.m_TopElementUnderMouse = null;
this.DispatchMouseEnterMouseLeave(topElementUnderMouse, this.m_TopElementUnderMouse, imguiEvent);
this.DispatchMouseOverMouseOut(topElementUnderMouse, this.m_TopElementUnderMouse, imguiEvent);
}
else if (evt is IMouseEvent || imguiEvent != null)
{
if (evt.target == null && panel != null)
{
if (evt is IMouseEvent)
{
this.m_TopElementUnderMouse = panel.Pick((evt as IMouseEvent).localMousePosition);
}
else if (imguiEvent != null)
{
this.m_TopElementUnderMouse = panel.Pick(imguiEvent.mousePosition);
}
evt.target = this.m_TopElementUnderMouse;
}
if (evt.target != null)
{
flag = true;
EventDispatcher.PropagateEvent(evt);
}
if (evt.GetEventTypeId() == EventBase <MouseMoveEvent> .TypeId() || evt.GetEventTypeId() == EventBase <MouseEnterWindowEvent> .TypeId() || evt.GetEventTypeId() == EventBase <WheelEvent> .TypeId() || (imguiEvent != null && imguiEvent.type == EventType.DragUpdated))
{
this.DispatchMouseEnterMouseLeave(topElementUnderMouse, this.m_TopElementUnderMouse, imguiEvent);
this.DispatchMouseOverMouseOut(topElementUnderMouse, this.m_TopElementUnderMouse, imguiEvent);
}
}
}
else if (panel != null && imguiEvent != null && (imguiEvent.type == EventType.ExecuteCommand || imguiEvent.type == EventType.ValidateCommand))
{
IMGUIContainer iMGUIContainer2 = panel.focusController.focusedElement as IMGUIContainer;
if (iMGUIContainer2 != null)
{
flag = true;
if (iMGUIContainer2.HandleIMGUIEvent(evt.imguiEvent))
{
evt.StopPropagation();
evt.PreventDefault();
}
}
else if (panel.focusController.focusedElement != null)
{
flag = true;
evt.target = panel.focusController.focusedElement;
EventDispatcher.PropagateEvent(evt);
}
else
{
flag = true;
EventDispatcher.PropagateToIMGUIContainer(panel.visualTree, evt, visualElement);
}
}
else if (evt is IPropagatableEvent || evt is IFocusEvent || evt is IChangeEvent || evt.GetEventTypeId() == EventBase <PostLayoutEvent> .TypeId() || evt.GetEventTypeId() == EventBase <InputEvent> .TypeId())
{
Debug.Assert(evt.target != null);
flag = true;
EventDispatcher.PropagateEvent(evt);
}
}
if (!evt.isPropagationStopped && imguiEvent != null && panel != null)
{
if (!flag || (imguiEvent != null && (imguiEvent.type == EventType.MouseEnterWindow || imguiEvent.type == EventType.MouseLeaveWindow || imguiEvent.type == EventType.Used)))
{
EventDispatcher.PropagateToIMGUIContainer(panel.visualTree, evt, visualElement);
}
}
if (evt.target == null && panel != null)
{
evt.target = panel.visualTree;
}
EventDispatcher.ExecuteDefaultAction(evt);
}
}
}
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);
}
private static void ReleaseCapture()
{
MouseCaptureController.ReleaseMouse();
}
