static void UpdateDragAndDrop()
{
// TODO: never use drag & drop code when dropping into inspector
// instead:
// find 'new' components, check if they're part of a prefab,
// check if that prefab has a copy flag, and replace it with a copy
if (currentTransformInInspector)
{
if (currentDragTool != null)
{
DragAndDrop.visualMode = DragAndDropVisualMode.Generic;
if (currentDragToolActive)
{
currentDragTool.Reset();
}
currentDragTool = null;
currentTransformInInspector = null;
draggingInScene = false;
}
currentTransformInInspector = null;
}
}
static void OnHandleDragAndDrop(bool inSceneView, Transform transformInInspector = null, Rect?selectionRect = null)
{
switch (Event.current.type)
{
case EventType.DragUpdated:
{
if (!draggingInScene)
{
if (currentDragTool != null)
{
currentDragTool.Reset();
}
currentDragTool = null;
currentDragToolActive = false;
if (materialDragTool.ValidateDrop(inSceneView))
{
currentDragTool = materialDragTool;
}
else
if (brushDragTool.ValidateDrop(inSceneView))
{
currentDragTool = brushDragTool;
}
else
if (meshDragTool.ValidateDrop(inSceneView))
{
currentDragTool = meshDragTool;
}
}
if (currentDragTool != null)
{
if (!currentDragTool.ValidateDropPoint(inSceneView))
{
if (currentDragTool != null && currentDragToolActive)
{
currentDragTool.DragExited(inSceneView);
}
currentDragToolActive = false;
}
else
{
currentDragToolActive = true;
SceneTools.IsDraggingObjectInScene = true;
DragAndDrop.visualMode = DragAndDropVisualMode.Generic;
if (inSceneView)
{
if (currentDragTool.DragUpdated())
{
HandleUtility.Repaint();
}
}
else
{
if (currentDragTool.DragUpdated(transformInInspector, selectionRect.Value))
{
SceneView.RepaintAll();
}
}
Event.current.Use();
draggingInScene = true;
}
}
break;
}
case EventType.DragPerform:
{
if (currentDragTool != null)
{
DragAndDrop.visualMode = DragAndDropVisualMode.Generic;
if (currentDragToolActive)
{
currentDragTool.DragPerform(inSceneView);
currentDragTool.Reset();
Event.current.Use();
}
currentDragTool = null;
draggingInScene = false;
}
break;
}
case EventType.DragExited:
case EventType.MouseMove:
{
if (currentDragTool != null)
{
currentDragTool.DragExited(inSceneView);
Event.current.Use();
SceneTools.IsDraggingObjectInScene = false;
currentDragTool = null;
draggingInScene = false;
SceneView.RepaintAll();
}
break;
}
}
}