91 lines
2.6 KiB
C#
91 lines
2.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using UnityEngine.Playables;
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#if UNITY_EDITOR
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using UnityEditor;
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#endif
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namespace UnityEngine.Timeline
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{
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static class TimelineUndo
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{
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public static void PushDestroyUndo(TimelineAsset timeline, Object thingToDirty, Object objectToDestroy, string operation)
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{
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#if UNITY_EDITOR
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if (objectToDestroy == null || !DisableUndoGuard.enableUndo)
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return;
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if (thingToDirty != null)
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EditorUtility.SetDirty(thingToDirty);
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if (timeline != null)
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EditorUtility.SetDirty(timeline);
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Undo.DestroyObjectImmediate(objectToDestroy);
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#else
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if (objectToDestroy != null)
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Object.Destroy(objectToDestroy);
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#endif
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}
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[Conditional("UNITY_EDITOR")]
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public static void PushUndo(Object thingToDirty, string operation)
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{
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#if UNITY_EDITOR
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if (thingToDirty != null && DisableUndoGuard.enableUndo)
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{
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var track = thingToDirty as TrackAsset;
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if (track != null)
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track.MarkDirty();
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EditorUtility.SetDirty(thingToDirty);
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Undo.RegisterCompleteObjectUndo(thingToDirty, "Timeline " + operation);
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}
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#endif
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}
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[Conditional("UNITY_EDITOR")]
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public static void RegisterCreatedObjectUndo(Object thingCreated, string operation)
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{
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#if UNITY_EDITOR
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if (DisableUndoGuard.enableUndo)
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{
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Undo.RegisterCreatedObjectUndo(thingCreated, "Timeline " + operation);
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}
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#endif
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}
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#if UNITY_EDITOR
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public struct DisableUndoGuard : IDisposable
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{
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internal static bool enableUndo = true;
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static readonly Stack<bool> m_UndoStateStack = new Stack<bool>();
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bool m_Disposed;
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public DisableUndoGuard(bool disable)
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{
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m_Disposed = false;
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m_UndoStateStack.Push(enableUndo);
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enableUndo = !disable;
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}
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public void Dispose()
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{
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if (!m_Disposed)
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{
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if (m_UndoStateStack.Count == 0)
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{
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Debug.LogError("UnMatched DisableUndoGuard calls");
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enableUndo = true;
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return;
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}
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enableUndo = m_UndoStateStack.Pop();
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m_Disposed = true;
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}
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}
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}
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#endif
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}
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}
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