Merged QuickLook.Common from submodule

https://github.com/QL-Win/QuickLook.Common/commit/529d07b56577b88329481cdac8f2a6a175b6c21a
2026-05-09 02:07:50 +08:00 · 2026-03-25 02:03:45 +08:00
parent 830911b878
commit 24979aa40f
33 changed files with 5467 additions and 0 deletions
@@ -0,0 +1,146 @@
+// Copyright © 2017-2026 QL-Win Contributors
+//
+// This file is part of QuickLook program.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using System.Runtime.Serialization;
+using System.Xml;
+
+namespace QuickLook.Common.Helpers;
+
+public static class SettingHelper
+{
+    public static readonly string LocalDataPath =
+        IsPortableVersion()
+            ? Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) ?? string.Empty,
+                @"UserData\")
+            : Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+                @"pooi.moe\QuickLook\");
+
+    private static readonly Dictionary<string, XmlDocument> FileCache = [];
+
+    public static T Get<T>(string id, T failsafe = default, string domain = "QuickLook")
+    {
+        if (!typeof(T).IsSerializable && !typeof(ISerializable).IsAssignableFrom(typeof(T)))
+            throw new InvalidOperationException("A serializable Type is required");
+
+        var file = Path.Combine(LocalDataPath, domain + ".config");
+
+        var doc = GetConfigFile(file);
+
+        // try to get setting
+        var s = GetSettingFromXml(doc, id, failsafe);
+
+        return s != null ? s : failsafe;
+    }
+
+    public static void Set(string id, object value, string domain = "QuickLook")
+    {
+        if (!value.GetType().IsSerializable)
+            throw new NotSupportedException("New value if not serializable.");
+
+        var file = Path.Combine(LocalDataPath, domain + ".config");
+
+        WriteSettingToXml(GetConfigFile(file), id, value);
+    }
+
+    public static bool IsPortableVersion()
+    {
+        var lck = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) ?? string.Empty,
+            "portable.lock");
+
+        return File.Exists(lck);
+    }
+
+    private static T GetSettingFromXml<T>(XmlDocument doc, string id, T failsafe)
+    {
+        var v = doc.SelectSingleNode($@"/Settings/{id}");
+
+        try
+        {
+            var result = v == null ? failsafe : (T)Convert.ChangeType(v.InnerText, typeof(T));
+            return result;
+        }
+        catch (Exception)
+        {
+            return failsafe;
+        }
+    }
+
+    private static void WriteSettingToXml(XmlDocument doc, string id, object value)
+    {
+        var v = doc.SelectSingleNode($@"/Settings/{id}");
+
+        if (v != null)
+        {
+            v.InnerText = value.ToString();
+        }
+        else
+        {
+            var node = doc.CreateNode(XmlNodeType.Element, id, doc.NamespaceURI);
+            node.InnerText = value.ToString();
+            doc.SelectSingleNode(@"/Settings")?.AppendChild(node);
+        }
+
+        doc.Save(new Uri(doc.BaseURI).LocalPath);
+    }
+
+    private static XmlDocument GetConfigFile(string file)
+    {
+        if (FileCache.ContainsKey(file))
+            return FileCache[file];
+
+        Directory.CreateDirectory(Path.GetDirectoryName(file));
+        if (!File.Exists(file))
+            CreateNewConfig(file);
+
+        var doc = new XmlDocument();
+        try
+        {
+            doc.Load(file);
+        }
+        catch (XmlException)
+        {
+            CreateNewConfig(file);
+            doc.Load(file);
+        }
+
+        if (doc.SelectSingleNode(@"/Settings") == null)
+        {
+            CreateNewConfig(file);
+            doc.Load(file);
+        }
+
+        FileCache.Add(file, doc);
+        return doc;
+    }
+
+    private static void CreateNewConfig(string file)
+    {
+        using (var writer = XmlWriter.Create(file))
+        {
+            writer.WriteStartDocument();
+            writer.WriteStartElement("Settings");
+            writer.WriteEndElement();
+            writer.WriteEndDocument();
+
+            writer.Flush();
+        }
+    }
+}