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Merge pull request #7 from brunomikoski/feature/saving-between-editor…
…-kill-start fix: added to store / restore between editor instances
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| using System; | ||
| using System.Reflection; | ||
| using UnityEditor; | ||
|
|
||
| namespace BrunoMikoski.SceneHierarchyKeeper | ||
| { | ||
| public static class UnityHierarchyTools | ||
| { | ||
| private const string UNITY_EDITOR_SCENE_HIERARCHY_WINDOW_TYPE_NAME = "UnityEditor.SceneHierarchyWindow"; | ||
| private const string EXPAND_TREE_VIEW_ITEM_METHOD_NAME = "ExpandTreeViewItem"; | ||
| private const string GET_EXPANDED_I_DS_METHOD_NAME = "GetExpandedIDs"; | ||
| private const string SCENE_HIERARCHY_PROPERTY_NAME = "sceneHierarchy"; | ||
|
|
||
| private static Type cachedSceneHierarchyWindowType; | ||
| private static Type SceneHierarchyWindowType | ||
| { | ||
| get | ||
| { | ||
| if (cachedSceneHierarchyWindowType == null) | ||
| { | ||
| //https://github.com/Unity-Technologies/UnityCsReference/blob/master/Editor/Mono/SceneHierarchyWindow.cs | ||
| cachedSceneHierarchyWindowType = | ||
| typeof(EditorWindow).Assembly.GetType(UNITY_EDITOR_SCENE_HIERARCHY_WINDOW_TYPE_NAME); | ||
| } | ||
|
|
||
| return cachedSceneHierarchyWindowType; | ||
| } | ||
| } | ||
|
|
||
| private static EditorWindow cachedHierarchyWindow; | ||
| internal static EditorWindow HierarchyWindow | ||
| { | ||
| get | ||
| { | ||
| if (cachedHierarchyWindow == null) | ||
| { | ||
| cachedHierarchyWindow = EditorWindow.GetWindow(SceneHierarchyWindowType); | ||
| } | ||
| return cachedHierarchyWindow; | ||
| } | ||
| } | ||
|
|
||
| private static MethodInfo cachedSetExpandedMethodInfo; | ||
| private static MethodInfo SetExpandedMethodInfo | ||
| { | ||
| get | ||
| { | ||
| if (cachedSetExpandedMethodInfo == null) | ||
| { | ||
| cachedSetExpandedMethodInfo = SceneHierarchyProperty.GetType().GetMethod( | ||
| EXPAND_TREE_VIEW_ITEM_METHOD_NAME, BindingFlags.Instance | BindingFlags.NonPublic); | ||
| } | ||
|
|
||
| return cachedSetExpandedMethodInfo; | ||
| } | ||
| } | ||
|
|
||
| private static object cachedSceneHierarchyProperty; | ||
| private static object SceneHierarchyProperty | ||
| { | ||
| get | ||
| { | ||
| if (cachedSceneHierarchyProperty == null) | ||
| { | ||
| cachedSceneHierarchyProperty = SceneHierarchyWindowType.GetProperty(SCENE_HIERARCHY_PROPERTY_NAME) | ||
| .GetValue(HierarchyWindow); | ||
| } | ||
|
|
||
| return cachedSceneHierarchyProperty; | ||
| } | ||
| } | ||
|
|
||
| private static MethodInfo cachedGetExpandedIDsMethodInfo; | ||
| private static MethodInfo GetExpandedIDsMethodInfo | ||
| { | ||
| get | ||
| { | ||
| if (cachedGetExpandedIDsMethodInfo == null) | ||
| { | ||
| cachedGetExpandedIDsMethodInfo = SceneHierarchyWindowType.GetMethod(GET_EXPANDED_I_DS_METHOD_NAME, | ||
| BindingFlags.NonPublic | BindingFlags.Instance); | ||
| } | ||
| return cachedGetExpandedIDsMethodInfo; | ||
| } | ||
| } | ||
|
|
||
|
|
||
|
|
||
| internal static void SetExpanded(int id, bool isExpanded) | ||
| { | ||
| SetExpandedMethodInfo.Invoke(SceneHierarchyProperty, new object[] {id, isExpanded}); | ||
| } | ||
|
|
||
| public static bool IsHierarchyWindowOpen() | ||
| { | ||
| return HierarchyWindow != null; | ||
| } | ||
|
|
||
| public static int[] GetExpandedItems() | ||
| { | ||
| return (int[]) GetExpandedIDsMethodInfo.Invoke(HierarchyWindow, null); | ||
| } | ||
| } | ||
| } |
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