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using System;
using System.IO;
using UnityEditorInternal;
using UnityEngine;
using UnityObject = UnityEngine.Object;
namespace UnityEditor.Timeline
{
class ScriptableObjectViewPrefs<TViewModel> : IDisposable where TViewModel : ScriptableObject
{
const string k_DefaultFilePath = "Library/";
const string k_Extension = ".pref";
readonly string m_RelativePath;
readonly string m_AbsolutePath;
readonly string m_FileName;
ScriptableObject m_Asset;
TViewModel m_ViewModel;
bool isSavable
{
get
{
return m_Asset != null &&
m_ViewModel != null &&
!string.IsNullOrEmpty(m_FileName);
}
}
public ScriptableObjectViewPrefs(ScriptableObject asset, string relativeSavePath)
{
m_Asset = asset;
m_RelativePath = string.IsNullOrEmpty(relativeSavePath) ? k_DefaultFilePath : relativeSavePath;
if (!m_RelativePath.EndsWith("/", StringComparison.Ordinal))
m_RelativePath += "/";
m_AbsolutePath = Application.dataPath + "/../" + m_RelativePath;
var assetKey = GetAssetKey(asset);
m_FileName = string.IsNullOrEmpty(assetKey) ? string.Empty : assetKey + k_Extension;
}
public TViewModel viewModel
{
get
{
if (m_ViewModel == null)
{
if (m_Asset == null)
m_ViewModel = CreateViewModel();
else
m_ViewModel = LoadViewModel() ?? CreateViewModel();
}
return m_ViewModel;
}
}
public void Save()
{
if (!isSavable)
return;
// make sure the path exists or file write will fail
if (!Directory.Exists(m_AbsolutePath))
Directory.CreateDirectory(m_AbsolutePath);
const bool saveAsText = true;
InternalEditorUtility.SaveToSerializedFileAndForget(new UnityObject[] { m_ViewModel }, m_RelativePath + m_FileName, saveAsText);
}
public void DeleteFile()
{
if (!isSavable)
return;
var path = m_AbsolutePath + m_FileName;
if (!File.Exists(path))
return;
File.Delete(path);
}
public void Dispose()
{
if (m_ViewModel != null)
UnityObject.DestroyImmediate(m_ViewModel);
m_Asset = null;
}
public static TViewModel CreateViewModel()
{
var model = ScriptableObject.CreateInstance<TViewModel>();
model.hideFlags |= HideFlags.HideAndDontSave;
return model;
}
TViewModel LoadViewModel()
{
if (string.IsNullOrEmpty(m_FileName))
return null;
var objects = InternalEditorUtility.LoadSerializedFileAndForget(m_RelativePath + m_FileName);
if (objects.Length <= 0 || objects[0] == null)
return null;
var model = (TViewModel)objects[0];
model.hideFlags |= HideFlags.HideAndDontSave;
return model;
}
static string GetAssetKey(UnityObject asset)
{
return asset == null ? string.Empty : AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(asset));
}
}
}
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