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142 lines
4.7 KiB
C#

namespace UnityEditor.SettingsManagement
{
/// <summary>
/// A settings repository backed by the UnityEditor.EditorPrefs class.
/// </summary>
public class UserSettingsRepository : ISettingsRepository
{
static string GetEditorPrefKey<T>(string key)
{
return GetEditorPrefKey(typeof(T).FullName, key);
}
static string GetEditorPrefKey(string fullName, string key)
{
return fullName + "::" + key;
}
static void SetEditorPref<T>(string key, T value)
{
var k = GetEditorPrefKey<T>(key);
if (typeof(T) == typeof(string))
EditorPrefs.SetString(k, (string)(object)value);
else if (typeof(T) == typeof(bool))
EditorPrefs.SetBool(k, (bool)(object)value);
else if (typeof(T) == typeof(float))
EditorPrefs.SetFloat(k, (float)(object)value);
else if (typeof(T) == typeof(int))
EditorPrefs.SetInt(k, (int)(object)value);
else
EditorPrefs.SetString(k, ValueWrapper<T>.Serialize(value));
}
static T GetEditorPref<T>(string key, T fallback = default(T))
{
var k = GetEditorPrefKey<T>(key);
if (!EditorPrefs.HasKey(k))
return fallback;
var o = (object)fallback;
if (typeof(T) == typeof(string))
o = EditorPrefs.GetString(k, (string)o);
else if (typeof(T) == typeof(bool))
o = EditorPrefs.GetBool(k, (bool)o);
else if (typeof(T) == typeof(float))
o = EditorPrefs.GetFloat(k, (float)o);
else if (typeof(T) == typeof(int))
o = EditorPrefs.GetInt(k, (int)o);
else
return ValueWrapper<T>.Deserialize(EditorPrefs.GetString(k));
return (T)o;
}
/// <value>
/// What SettingsScope this repository applies to.
/// </value>
/// <inheritdoc cref="ISettingsRepository.scope"/>
public SettingsScope scope
{
get { return SettingsScope.User; }
}
/// <summary>
/// An identifying name for this repository. User settings are named "EditorPrefs."
/// </summary>
public string name
{
get { return "EditorPrefs"; }
}
/// <value>
/// File path to the serialized settings data.
/// </value>
/// <remarks>
/// This property returns an empty string.
/// </remarks>
/// <inheritdoc cref="ISettingsRepository.path"/>
public string path
{
get { return string.Empty; }
}
/// <summary>
/// Save all settings to their serialized state.
/// </summary>
/// <inheritdoc cref="ISettingsRepository.Save"/>
public void Save()
{
}
/// <inheritdoc />
/// <summary>
/// Set a value for key of type T.
/// </summary>
/// <param name="key">The settings key.</param>
/// <param name="value">The value to set. Must be serializable.</param>
/// <typeparam name="T">Type of value.</typeparam>
public void Set<T>(string key, T value)
{
SetEditorPref<T>(key, value);
}
/// <inheritdoc />
/// <summary>
/// Get a value with key of type T, or return the fallback value if no matching key is found.
/// </summary>
/// <param name="key">The settings key.</param>
/// <param name="fallback">If no key with a value of type T is found, this value is returned.</param>
/// <typeparam name="T">Type of value to search for.</typeparam>
public T Get<T>(string key, T fallback = default(T))
{
return GetEditorPref<T>(key, fallback);
}
/// <inheritdoc />
/// <summary>
/// Does the repository contain a setting with key and type.
/// </summary>
/// <param name="key">The settings key.</param>
/// <typeparam name="T">The type of value to search for.</typeparam>
/// <returns>True if a setting matching both key and type is found, false if no entry is found.</returns>
public bool ContainsKey<T>(string key)
{
return EditorPrefs.HasKey(GetEditorPrefKey<T>(key));
}
/// <inheritdoc />
/// <summary>
/// Remove a key value pair from the settings repository.
/// </summary>
/// <param name="key"></param>
/// <typeparam name="T"></typeparam>
public void Remove<T>(string key)
{
EditorPrefs.DeleteKey(GetEditorPrefKey<T>(key));
}
}
}