perf: 优化默认位置实现

perf: 移除系统窗口菜单，避免重复调用快捷键后首字母无法输入

chore: before hide

STranslate/Views/MainView.xaml.cs

@@ -2,10 +2,11 @@
 using STranslate.Util;
 using STranslate.ViewModels;
 using System;
-using System.Linq;
+using System.Runtime.InteropServices;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
+using System.Windows.Interop;
 
 namespace STranslate.Views
 {
@@ -14,8 +15,6 @@ namespace STranslate.Views
     /// </summary>
     public partial class MainView : Window
     {
-        private readonly MainViewModel vm = Singleton<MainViewModel>.Instance;
-
         public MainView()
         {
             DataContext = vm;
@@ -32,7 +31,7 @@ private void UnLoadPosition()
             //写入配置
             if (!Singleton<ConfigHelper>.Instance.WriteConfig(Left, Top))
             {
-                LogService.Logger.Debug($"保存位置({Left},{Top})失败...");
+                LogService.Logger.Error($"保存位置({Left},{Top})失败...");
             }
         }
 
@@ -50,17 +49,19 @@ private void LoadPosition()
                 bool ret = true;
                 ret &= double.TryParse(args[0], out var left);
                 ret &= double.TryParse(args[1], out var top);
-                if (!ret) throw new Exception();
+                if (!ret || left > SystemParameters.WorkArea.Width || top > SystemParameters.WorkArea.Height)
+                {
+                    throw new Exception($"当前({SystemParameters.WorkArea.Width}x{SystemParameters.WorkArea.Height})");
+                }
 
                 Left = left;
                 Top = top;
             }
-            catch (Exception)
+            catch (Exception ex)
             {
-                Top = (SystemParameters.WorkArea.Height - Height) / 2;
-                Left = (SystemParameters.WorkArea.Width - Width) / 2;
+                WindowStartupLocation = WindowStartupLocation.CenterOwner;
 
-                LogService.Logger.Warn($"加载上次窗口位置({position})失败，启用默认位置");
+                LogService.Logger.Warn($"加载上次窗口位置({position})失败，启用默认位置 {ex.Message}");
             }
         }
 
@@ -85,16 +86,62 @@ private void Mwin_Deactivated(object sender, EventArgs e)
         /// <param name="e"></param>
         private void Mwin_Activated(object sender, EventArgs e)
         {
-            if (InputView.FindName("InputTB") is TextBox tb)
+            if (InputView.FindName("InputTB") is TextBox tb && Visibility == Visibility.Visible)
             {
                 // 执行激活控件的操作，例如设置焦点
                 tb.Focus();
 
-                //光标移动至末尾
+                // 光标移动至末尾
                 tb.CaretIndex = tb.Text?.Length ?? 0;
 
+                // 全选
                 //tb?.SelectAll();
             }
         }
+
+        #region 隐藏系统窗口菜单
+
+        //方法来自于 Lindexi
+        //https://blog.lindexi.com/post/WPF-%E9%9A%90%E8%97%8F%E7%B3%BB%E7%BB%9F%E7%AA%97%E5%8F%A3%E8%8F%9C%E5%8D%95.html
+
+        protected override void OnSourceInitialized(EventArgs e)
+        {
+            base.OnSourceInitialized(e);
+
+            var windowInteropHelper = new WindowInteropHelper(this);
+            var hwnd = windowInteropHelper.Handle;
+
+            var windowLong = GetWindowLong(hwnd, GWL_STYLE);
+            windowLong &= ~WS_SYSMENU;
+
+            SetWindowLongPtr(hwnd, GWL_STYLE, new IntPtr(windowLong));
+        }
+
+        public const int WS_SYSMENU = 0x00080000;
+
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern int GetWindowLong(IntPtr hWnd, int nIndex);
+
+        public const int GWL_STYLE = -16;
+
+        public static IntPtr SetWindowLongPtr(IntPtr hWnd, int nIndex, IntPtr dwNewLong)
+        {
+            if (Environment.Is64BitProcess)
+            {
+                return SetWindowLongPtr64(hWnd, nIndex, dwNewLong);
+            }
+
+            return new IntPtr(SetWindowLong32(hWnd, nIndex, dwNewLong.ToInt32()));
+        }
+
+        [DllImport("user32.dll", EntryPoint = "SetWindowLong")]
+        private static extern int SetWindowLong32(IntPtr hWnd, int nIndex, int dwNewLong);
+
+        [DllImport("user32.dll", EntryPoint = "SetWindowLongPtr")]
+        private static extern IntPtr SetWindowLongPtr64(IntPtr hWnd, int nIndex, IntPtr dwNewLong);
+
+        #endregion 隐藏系统窗口菜单
+
+        private readonly MainViewModel vm = Singleton<MainViewModel>.Instance;
     }
-}
+}