private static void OnHierarchyWindowChanged()
{
if (HierarchyUtils.IsHierarchyWindowInPrefabMode())
{
return;
}
if (IsSceneChanged())
{
// Create our marker
_cachedGo = new GameObject(GameObjectName, typeof(HierarchyNode));
_cachedNode = _cachedGo.GetComponent <HierarchyNode>();
// Note: We don't use the DontSaveInEditor flag as this causes OnDestroy/OnDisable() to not be called when the scene unloads
_cachedGo.hideFlags = HideFlags.NotEditable | HideFlags.HideInHierarchy | HideFlags.HideInInspector;
#if UNITY_5 || UNITY_5_4_OR_NEWER
_cachedGo.hideFlags |= HideFlags.DontSaveInBuild;
#endif
}
if (_cachedNode != null)
{
_cachedNode.SetHierarchyDirty();
}
}
private void RestoreSelection()
{
if (HierarchyUtils.IsHierarchyWindowInPrefabMode())
{
return;
}
UpdateSceneGUID();
if (!string.IsNullOrEmpty(_sceneGUID))
{
_hierarchyPathList = RestoreHierarchyState(_sceneGUID, true);
_selectionPathList = RestoreSelectionState(_sceneGUID, true);
//Debug.Log("hierarchy " + _hierarchyPathList);
//Debug.Log("selection " + _selectionPathList);
if (string.IsNullOrEmpty(_selectionPathList))
{
// No selection was restored, so we need to select at least one node so that the hierarchy expansion happens.
// So just select one of the items in the hierarchyList
string[] paths = null;
{
// Convert the string list to an array
if (!string.IsNullOrEmpty(_hierarchyPathList))
{
paths = _hierarchyPathList.Split(new char[] { '*' }, System.StringSplitOptions.RemoveEmptyEntries);
}
// Select the first found expanded object
if (paths != null && paths.Length > 0)
{
foreach (string path in paths)
{
GameObject go = GameObject.Find(path);
if (go != null)
{
Selection.activeGameObject = go;
break;
}
}
}
}
}
// Only force the hierarchy window to update if something has changed
if (Selection.activeGameObject != null || !string.IsNullOrEmpty(_hierarchyPathList))
{
// Force the hierarchy window to update to the current selection
EditorApplication.DirtyHierarchyWindowSorting();
// NOTE: We need to use the delayCall because sometimes DirtyHierarchyWindowSorting() doesn't work the first time
EditorApplication.delayCall += () =>
{
// Force the hierarchy window to update to the current selection
EditorApplication.DirtyHierarchyWindowSorting();
};
}
}
}
// When the scene closes, this node will get destroyed, at which point we save the scene state information
private void OnDestroy()
{
if (HierarchyUtils.IsHierarchyWindowInPrefabMode())
{
return;
}
SaveHierarchyState(_hierarchyPathList, _sceneGUID);
SaveSelectionState(_selectionPathList, _sceneGUID);
}
private void OnEditorUpdate()
{
// Editor updates are expensive, so don't do them too often as it can slow down the UI
if (editorUpdateCount > 50 &&
// We don't want to save hierarchy/selection when the app is playing
!EditorApplication.isPlaying &&
!EditorApplication.isPlayingOrWillChangePlaymode &&
!EditorApplication.isCompiling &&
!EditorApplication.isUpdating &&
!HierarchyUtils.IsHierarchyWindowInPrefabMode())
{
editorUpdateCount = 0;
if (HasSelectionChanged() || HasHierarchyChanged())
{
CacheHierarchy();
}
}
editorUpdateCount++;
}