292 lines
8.4 KiB
C#
292 lines
8.4 KiB
C#
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows;
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using System.Windows.Input;
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using System.Windows.Interop;
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using System.Windows.Forms;
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using MpvNet.Help;
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using MpvNet.Windows.UI;
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namespace MpvNet.Windows;
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public partial class LearnWindow : Window
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{
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public Binding? InputItem { get; set; }
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string NewKey = "";
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uint MAPVK_VK_TO_VSC = 0;
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int VK_MENU = 0x12;
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int VK_LMENU = 0xA4;
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int VK_RMENU = 0xA5;
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int VK_CONTROL = 0x11;
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int VK_LCONTROL = 0xA2;
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int VK_RCONTROL = 0xA3;
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bool BlockMBTN_LEFT;
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bool BlockMBTN_RIGHT;
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public LearnWindow()
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{
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InitializeComponent();
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DataContext = this;
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}
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public Theme? Theme => Theme.Current;
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[DllImport("user32.dll", CharSet = CharSet.Auto)]
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static extern short GetKeyState(int keyCode);
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[DllImport("user32.dll")]
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static extern uint MapVirtualKey(uint uCode, uint uMapType);
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[DllImport("user32.dll", CharSet = CharSet.Unicode)]
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static extern int ToUnicode(uint wVirtKey, uint wScanCode, byte[] lpKeyState,
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StringBuilder pwszBuff, int cchBuff, uint wFlags);
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[DllImport("user32.dll")]
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static extern bool GetKeyboardState(byte[] lpKeyState);
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string ToUnicode(uint vk, ref bool firstEmpty)
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{
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byte[] keys = new byte[256];
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if (!GetKeyboardState(keys))
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return "";
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if ((keys[VK_CONTROL] & 0x80) != 0 && (keys[VK_MENU] & 0x80) == 0)
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keys[VK_LCONTROL] = keys[VK_RCONTROL] = keys[VK_CONTROL] = 0;
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uint scanCode = MapVirtualKey(vk, MAPVK_VK_TO_VSC);
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string ret = ToUnicode(vk, scanCode, keys);
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firstEmpty = ret == "";
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if (ret.Length == 1 && ret[0] < 32)
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return "";
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if (firstEmpty)
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{
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keys[VK_LCONTROL] = keys[VK_RCONTROL] = keys[VK_CONTROL] = 0;
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keys[VK_LMENU] = keys[VK_RMENU] = keys[VK_MENU] = 0;
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ret = ToUnicode(vk, scanCode, keys);
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}
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return ret;
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}
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public string ToUnicode(uint vk, uint scanCode, byte[] keys)
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{
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StringBuilder sb = new StringBuilder(10);
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ToUnicode(vk, scanCode, keys, sb, sb.Capacity, 0);
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return sb.ToString();
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}
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IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
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{
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Message m = new Message();
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m.HWnd = hwnd;
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m.Msg = msg;
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m.WParam = wParam;
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m.LParam = lParam;
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ProcessKeyEventArgs(ref m);
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return m.Result;
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}
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void OnKeyDown(uint vk)
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{
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bool firstEmpty = false;
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Keys key = (Keys)vk;
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if (key == Keys.ControlKey || key == Keys.ShiftKey ||
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key == Keys.Menu || key == Keys.None)
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return;
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string text = ToUnicode(vk, ref firstEmpty);
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if ((int)key > 111 && (int)key < 136)
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text = "F" + ((int)key - 111);
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if ((int)key > 95 && (int)key < 106)
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text = "KP" + ((int)key - 96);
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switch (text)
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{
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case "#": text = "SHARP"; break;
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case "´´": text = "´"; break;
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case "``": text = "`"; break;
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case "^^": text = "^"; break;
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}
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switch (key)
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{
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case Keys.Left: text = "Left"; break;
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case Keys.Up: text = "Up"; break;
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case Keys.Right: text = "Right"; break;
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case Keys.Down: text = "Down"; break;
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case Keys.Space: text = "Space"; break;
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case Keys.Enter: text = "Enter"; break;
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case Keys.Tab: text = "Tab"; break;
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case Keys.Back: text = "BS"; break;
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case Keys.Delete: text = "Del"; break;
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case Keys.Insert: text = "Ins"; break;
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case Keys.Home: text = "Home"; break;
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case Keys.End: text = "End"; break;
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case Keys.PageUp: text = "PGUP"; break;
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case Keys.PageDown: text = "PGDWN"; break;
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case Keys.Escape: text = "Esc"; break;
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case Keys.Sleep: text = "Sleep"; break;
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case Keys.Cancel: text = "Cancel"; break;
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case Keys.PrintScreen: text = "Print"; break;
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case Keys.BrowserFavorites: text = "Favorites"; break;
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case Keys.BrowserSearch: text = "Search"; break;
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case Keys.BrowserHome: text = "Homepage"; break;
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case Keys.LaunchMail: text = "Mail"; break;
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case Keys.Play: text = "Play"; break;
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case Keys.Pause: text = "Pause"; break;
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case Keys.MediaPlayPause: text = "PlayPause"; break;
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case Keys.MediaStop: text = "Stop"; break;
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case Keys.MediaNextTrack: text = "Next"; break;
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case Keys.MediaPreviousTrack: text = "Prev"; break;
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case Keys.VolumeUp:
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case Keys.VolumeDown:
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case Keys.VolumeMute:
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text = ""; break;
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}
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bool isAlt = GetKeyState(18) < 0;
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bool isShift = GetKeyState(16) < 0;
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bool isCtrl = GetKeyState(17) < 0;
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bool isLetter = (int)key > 64 && (int)key < 91;
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if (isLetter && isShift)
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text = text.ToUpper();
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string keyString = ToUnicode(vk, ref firstEmpty);
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if (isAlt && !isCtrl)
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text = "Alt+" + text;
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if (isShift && keyString == "")
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text = "Shift+" + text;
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if (isCtrl && isAlt && firstEmpty)
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text = "Ctrl+Alt+" + text;
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else if (isCtrl && !(keyString != "" && isCtrl && isAlt))
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text = "Ctrl+" + text;
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if (!string.IsNullOrEmpty(text))
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SetKey(text);
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}
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void SetKey(string? key)
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{
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NewKey = key!;
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MenuTextBlock.Text = InputItem?.Path;
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KeyTextBlock.Text = key;
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}
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void ProcessKeyEventArgs(ref Message m)
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{
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int WM_KEYDOWN = 0x100;
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int WM_SYSKEYDOWN = 0x104;
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int WM_APPCOMMAND = 0x319;
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if (m.Msg == WM_KEYDOWN || m.Msg == WM_SYSKEYDOWN)
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OnKeyDown((uint)m.WParam.ToInt64());
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else if (m.Msg == WM_APPCOMMAND)
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{
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string? value = MpvHelp.WM_APPCOMMAND_to_mpv_key((int)(m.LParam.ToInt64() >> 16 & ~0xf000));
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if (value != null)
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SetKey(value);
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}
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}
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void Window_Loaded(object sender, RoutedEventArgs e)
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{
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HwndSource source = HwndSource.FromHwnd(new WindowInteropHelper(this).Handle);
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source.AddHook(new HwndSourceHook(WndProc));
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SetKey(InputItem?.Input);
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}
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void ConfirmButton_Click(object sender, RoutedEventArgs e)
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{
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InputItem!.Input = NewKey;
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Close();
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}
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void ClearButton_Click(object sender, RoutedEventArgs e)
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{
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InputItem!.Input = "";
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Close();
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}
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void Window_MouseWheel(object sender, MouseWheelEventArgs e)
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{
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if (e.Delta > 0)
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SetKey("WHEEL_UP");
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else
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SetKey("WHEEL_DOWN");
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}
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void Window_MouseUp(object sender, MouseButtonEventArgs e)
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{
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switch (e.ChangedButton)
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{
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case MouseButton.Left:
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if (BlockMBTN_LEFT)
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BlockMBTN_LEFT = false;
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else
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SetKey("MBTN_LEFT");
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break;
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case MouseButton.Right:
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if (BlockMBTN_RIGHT)
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BlockMBTN_RIGHT = false;
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else
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SetKey("MBTN_RIGHT");
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break;
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case MouseButton.Middle:
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SetKey("MBTN_MID");
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break;
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case MouseButton.XButton1:
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SetKey("MBTN_BACK");
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break;
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case MouseButton.XButton2:
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SetKey("MBTN_FORWARD");
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break;
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}
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}
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void Window_MouseDoubleClick(object sender, MouseButtonEventArgs e)
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{
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if (e.ChangedButton == MouseButton.Left)
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{
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SetKey("MBTN_LEFT_DBL");
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BlockMBTN_LEFT = true;
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}
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if (e.ChangedButton == MouseButton.Right)
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{
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SetKey("MBTN_RIGHT_DBL");
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BlockMBTN_RIGHT = true;
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}
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}
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void Window_PreviewKeyDown(object sender, System.Windows.Input.KeyEventArgs e)
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{
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if (e.Key == Key.Tab)
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{
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OnKeyDown((uint)Keys.Tab);
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e.Handled = true;
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}
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}
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}
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