void HandleEditorDragging(Editor[] editors, int editorIndex, Rect targetRect, float markerY, bool bottomTarget)
{
var evt = Event.current;
switch (evt.type)
{
case EventType.DragUpdated:
if (targetRect.Contains(evt.mousePosition))
{
var draggingMode = DragAndDrop.GetGenericData(k_DraggingModeKey) as DraggingMode ? ;
if (!draggingMode.HasValue)
{
var draggedObjects = DragAndDrop.objectReferences;
if (draggedObjects.Length == 0)
{
draggingMode = DraggingMode.NotApplicable;
}
else if (draggedObjects.All(o => o is Component && !(o is Transform)))
{
draggingMode = DraggingMode.Component;
}
else if (draggedObjects.All(o => o is MonoScript))
{
draggingMode = DraggingMode.Script;
}
else
{
draggingMode = DraggingMode.NotApplicable;
}
DragAndDrop.SetGenericData(k_DraggingModeKey, draggingMode);
}
if (draggingMode.Value != DraggingMode.NotApplicable)
{
if (bottomTarget)
{
m_TargetAbove = false;
m_TargetIndex = m_LastIndex;
}
else
{
m_TargetAbove = evt.mousePosition.y < targetRect.y + targetRect.height / 2f;
m_TargetIndex = editorIndex;
if (m_TargetAbove)
{
m_TargetIndex++;
while (m_TargetIndex < editors.Length && m_InspectorWindow.ShouldCullEditor(editors, m_TargetIndex))
{
m_TargetIndex++;
}
if (m_TargetIndex == editors.Length)
{
m_TargetIndex = -1;
return;
}
}
}
if (m_TargetAbove && m_InspectorWindow.EditorHasLargeHeader(m_TargetIndex, editors))
{
m_TargetIndex--;
while (m_TargetIndex >= 0 && m_InspectorWindow.ShouldCullEditor(editors, m_TargetIndex))
{
m_TargetIndex--;
}
if (m_TargetIndex == -1)
{
return;
}
m_TargetAbove = false;
}
if (draggingMode.Value == DraggingMode.Script)
{
// Validate dragging scripts
// Always allow script dragging, instead fail during DragPerform with a dialog box
DragAndDrop.visualMode = DragAndDropVisualMode.Link;
}
else
{
// Validate dragging components
var valid = false;
if (editors[m_TargetIndex].targets.All(t => t is Component))
{
var targetComponents = editors[m_TargetIndex].targets.Cast <Component>().ToArray();
var sourceComponents = DragAndDrop.objectReferences.Cast <Component>().ToArray();
valid = MoveOrCopyComponents(sourceComponents, targetComponents, EditorUtility.EventHasDragCopyModifierPressed(evt), true);
}
if (valid)
{
DragAndDrop.visualMode = EditorUtility.EventHasDragCopyModifierPressed(evt) ? DragAndDropVisualMode.Copy : DragAndDropVisualMode.Move;
}
else
{
DragAndDrop.visualMode = DragAndDropVisualMode.None;
m_TargetIndex = -1;
return;
}
}
evt.Use();
}
}
else
{
m_TargetIndex = -1;
}
break;
case EventType.DragPerform:
if (m_TargetIndex != -1)
{
var draggingMode = DragAndDrop.GetGenericData(k_DraggingModeKey) as DraggingMode ? ;
if (!draggingMode.HasValue || draggingMode.Value == DraggingMode.NotApplicable)
{
m_TargetIndex = -1;
return;
}
if (!editors[m_TargetIndex].targets.All(t => t is Component))
{
return;
}
var targetComponents = editors[m_TargetIndex].targets.Cast <Component>().ToArray();
if (draggingMode.Value == DraggingMode.Script)
{
var scripts = DragAndDrop.objectReferences.Cast <MonoScript>();
// Ensure all script components can be added
var valid = true;
foreach (var targetComponent in targetComponents)
{
var gameObject = targetComponent.gameObject;
if (scripts.Any(s => !ComponentUtility.WarnCanAddScriptComponent(targetComponent.gameObject, s)))
{
valid = false;
break;
}
}
if (valid)
{
Undo.IncrementCurrentGroup();
var undoGroup = Undo.GetCurrentGroup();
// Add script components
var index = 0;
var addedComponents = new Component[targetComponents.Length * scripts.Count()];
for (int i = 0; i < targetComponents.Length; i++)
{
var targetComponent = targetComponents[i];
var gameObject = targetComponent.gameObject;
bool targetIsTransform = targetComponent is Transform;
foreach (var script in scripts)
{
addedComponents[index++] = ObjectFactory.AddComponent(gameObject, script.GetClass());
}
// If the target is a Transform, the AddComponent might have replaced it with a RectTransform.
// Handle this possibility by updating the target component.
if (targetIsTransform)
{
targetComponents[i] = gameObject.transform;
}
}
// Move added components relative to target components
if (!ComponentUtility.MoveComponentsRelativeToComponents(addedComponents, targetComponents, m_TargetAbove))
{
// Revert added components if move operation fails (e.g. user aborts when asked to break prefab instance)
Undo.RevertAllDownToGroup(undoGroup);
}
}
}
else
{
// Handle dragging components
var sourceComponents = DragAndDrop.objectReferences.Cast <Component>().ToArray();
if (sourceComponents.Length == 0 || targetComponents.Length == 0)
{
return;
}
MoveOrCopyComponents(sourceComponents, targetComponents, EditorUtility.EventHasDragCopyModifierPressed(evt), false);
}
m_TargetIndex = -1;
DragAndDrop.AcceptDrag();
evt.Use();
EditorGUIUtility.ExitGUI();
}
break;
case EventType.DragExited:
m_TargetIndex = -1;
break;
case EventType.Repaint:
if (m_TargetIndex != -1 && targetRect.Contains(evt.mousePosition))
{
Styles.insertionMarker.Draw(GetMarkerRect(targetRect, markerY, m_TargetAbove), false, false, false, false);
}
break;
}
}
void HandleEditorDragging(Editor[] editors, int editorIndex, Rect targetRect, float markerY, bool bottomTarget)
{
var evt = Event.current;
switch (evt.type)
{
case EventType.DragUpdated:
if (targetRect.Contains(evt.mousePosition))
{
var draggingMode = DragAndDrop.GetGenericData(k_DraggingModeKey) as DraggingMode ? ;
if (!draggingMode.HasValue)
{
var draggedObjects = DragAndDrop.objectReferences;
if (draggedObjects.Length == 0)
{
draggingMode = DraggingMode.NotApplicable;
}
else if (draggedObjects.All(o => o is Component && !(o is Transform)))
{
draggingMode = DraggingMode.Component;
}
else if (draggedObjects.All(o => o is MonoScript))
{
draggingMode = DraggingMode.Script;
}
else
{
draggingMode = DraggingMode.NotApplicable;
}
DragAndDrop.SetGenericData(k_DraggingModeKey, draggingMode);
}
if (draggingMode.Value != DraggingMode.NotApplicable)
{
if (bottomTarget)
{
m_TargetAbove = false;
m_TargetIndex = m_LastIndex;
}
else
{
m_TargetAbove = evt.mousePosition.y < targetRect.y + targetRect.height / 2f;
m_TargetIndex = editorIndex;
if (m_TargetAbove)
{
m_TargetIndex++;
while (m_TargetIndex < editors.Length && m_InspectorWindow.ShouldCullEditor(editors, m_TargetIndex))
{
m_TargetIndex++;
}
if (m_TargetIndex == editors.Length)
{
m_TargetIndex = -1;
return;
}
}
}
if (m_TargetAbove && InspectorWindow.EditorHasLargeHeader(m_TargetIndex, editors))
{
m_TargetIndex--;
while (m_TargetIndex >= 0 && m_InspectorWindow.ShouldCullEditor(editors, m_TargetIndex))
{
m_TargetIndex--;
}
if (m_TargetIndex == -1)
{
return;
}
m_TargetAbove = false;
}
if (draggingMode.Value == DraggingMode.Script)
{
// Validate dragging scripts
// Always allow script dragging, instead fail during DragPerform with a dialog box
DragAndDrop.visualMode = DragAndDropVisualMode.Link;
}
else
{
// Validate dragging components
var valid = false;
if (editors[m_TargetIndex].targets.All(t => t is Component))
{
var targetComponents = editors[m_TargetIndex].targets.Cast <Component>().ToArray();
var sourceComponents = DragAndDrop.objectReferences.Cast <Component>().ToArray();
valid = MoveOrCopyComponents(sourceComponents, targetComponents, EditorUtility.EventHasDragCopyModifierPressed(evt), true);
}
if (valid)
{
DragAndDrop.visualMode = EditorUtility.EventHasDragCopyModifierPressed(evt) ? DragAndDropVisualMode.Copy : DragAndDropVisualMode.Move;
}
else
{
DragAndDrop.visualMode = DragAndDropVisualMode.None;
m_TargetIndex = -1;
return;
}
}
evt.Use();
}
}
else
{
m_TargetIndex = -1;
}
break;
case EventType.DragPerform:
if (m_TargetIndex != -1)
{
HandleDragPerformEvent(editors, evt, ref m_TargetIndex);
}
break;
case EventType.DragExited:
m_TargetIndex = -1;
break;
case EventType.Repaint:
if (m_TargetIndex != -1 && editorIndex == m_TargetIndex &&
(targetRect.Contains(evt.mousePosition) ||
m_BottomArea.Contains(GUIClip.UnclipToWindow(evt.mousePosition)) &&
m_BottomAreaDropIndex == editors.Length - 1))
{
Styles.insertionMarker.Draw(GetMarkerRect(targetRect, markerY, m_TargetAbove), false, false, false, false);
}
break;
}
}