293 lines
9.5 KiB
C#
293 lines
9.5 KiB
C#
using System;
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using System.Runtime.InteropServices;
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using System.Windows;
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using System.Windows.Interop;
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namespace unison
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{
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public class HotkeyHandler
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{
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[DllImport("user32.dll")]
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private static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);
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[DllImport("user32.dll")]
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private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
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private const int HOTKEY_ID = 9000;
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public enum MOD : int
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{
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None = 0x0000,
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Alt = 0x0001,
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Control = 0x0002,
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Shift = 0x0004,
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//Win = 0x0008
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};
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// reference => https://docs.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
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public enum VK : int
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{
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None = 0x00,
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Back = 0x08,
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Tab = 0x09,
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Clear = 0x0c,
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Return = 0x0d,
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Menu = 0x12,
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Pause = 0x13,
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Capital = 0x14,
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Kana = 0x15,
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Hangul = 0x15,
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Junja = 0x17,
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Final = 0x18,
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Hanja = 0x19,
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Kanji = 0x19,
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Escape = 0x1b,
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Convert = 0x1c,
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NonConvert = 0x1d,
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Accept = 0x1e,
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ModeChange = 0x1f,
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Space = 0x20,
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Prior = 0x21,
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Next = 0x22,
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End = 0x23,
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Home = 0x24,
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Left = 0x25,
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Up = 0x26,
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Right = 0x27,
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Down = 0x28,
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Select = 0x29,
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Print = 0x2a,
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Execute = 0x2b,
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Snapshot = 0x2c,
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Insert = 0x2d,
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Delete = 0x2e,
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Help = 0x2f,
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NumRow0 = 0x30,
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NumRow1 = 0x31,
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NumRow2 = 0x32,
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NumRow3 = 0x33,
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NumRow4 = 0x34,
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NumRow5 = 0x35,
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NumRow6 = 0x36,
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NumRow7 = 0x37,
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NumRow8 = 0x38,
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NumRow9 = 0x39,
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A = 0x41,
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B = 0x42,
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C = 0x43,
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D = 0x44,
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E = 0x45,
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F = 0x46,
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G = 0x47,
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H = 0x48,
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I = 0x49,
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J = 0x4a,
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K = 0x4b,
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L = 0x4c,
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M = 0x4d,
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N = 0x4e,
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O = 0x4f,
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P = 0x50,
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Q = 0x51,
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R = 0x52,
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S = 0x53,
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T = 0x54,
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U = 0x55,
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V = 0x56,
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W = 0x57,
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X = 0x58,
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Y = 0x59,
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Z = 0x5a,
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Apps = 0x5d,
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Sleep = 0x5f,
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NumPad0 = 0x60,
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NumPad1 = 0x61,
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NumPad2 = 0x62,
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NumPad3 = 0x63,
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NumPad4 = 0x64,
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NumPad5 = 0x65,
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NumPad6 = 0x66,
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NumPad7 = 0x67,
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NumPad8 = 0x68,
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NumPad9 = 0x69,
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Multiply = 0x6a,
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Add = 0x6b,
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Separator = 0x6c,
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Subtract = 0x6d,
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Decimal = 0x6e,
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Divide = 0x6f,
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F1 = 0x70,
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F2 = 0x71,
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F3 = 0x72,
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F4 = 0x73,
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F5 = 0x74,
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F6 = 0x75,
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F7 = 0x76,
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F8 = 0x77,
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F9 = 0x78,
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F10 = 0x79,
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F11 = 0x7a,
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F12 = 0x7b,
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F13 = 0x7c,
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F14 = 0x7d,
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F15 = 0x7e,
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F16 = 0x7f,
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F17 = 0x80,
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F18 = 0x81,
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F19 = 0x82,
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F20 = 0x83,
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F21 = 0x84,
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F22 = 0x85,
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F23 = 0x86,
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F24 = 0x87,
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NumLock = 0x90,
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Scroll = 0x91,
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LMenu = 0xa4,
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RMenu = 0xa5,
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BrowserBack = 0xa6,
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BrowserForward = 0xa7,
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BrowserRefresh = 0xa8,
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BrowserStop = 0xa9,
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BrowserSearch = 0xaa,
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BrowserFavorites = 0xab,
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BrowserHome = 0xac,
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VolumeMute = 0xad,
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VolumeDown = 0xae,
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VolumeUp = 0xaf,
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MediaNextTrack = 0xb0,
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MediaPreviousTrack = 0xb1,
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MediaStop = 0xb2,
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MediaPlayPause = 0xb3,
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LaunchMail = 0xb4,
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LaunchMediaSelect = 0xb5,
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LaunchApp1 = 0xb6,
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LaunchApp2 = 0xb7,
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};
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public struct HotkeyPair
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{
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public MOD mod;
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public VK vk;
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public HotkeyPair(MOD _mod, VK _vk) { mod = _mod; vk = _vk; }
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public uint GetMOD() { return (uint)mod; }
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public uint GetVK() { return (uint)vk; }
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public void SetMOD(MOD modmod) { mod = modmod; }
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public void SetVK(VK vkvk) { vk = vkvk; }
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}
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private MainWindow _appWindow;
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private readonly MPDHandler _mpd;
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private IntPtr _windowHandle;
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private HwndSource _source;
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public HotkeyPair _NextTrack;
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public HotkeyPair _PreviousTrack;
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public HotkeyPair _PlayPause;
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public HotkeyPair _VolumeUp;
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public HotkeyPair _VolumeDown;
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public HotkeyPair _VolumeMute;
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public HotkeyPair _ShowWindow;
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public HotkeyPair[] _Shortcuts;
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public HotkeyHandler()
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{
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_mpd = (MPDHandler)Application.Current.Properties["mpd"];
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Initialize();
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}
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public void Initialize()
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{
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_NextTrack = new HotkeyPair((MOD)Properties.Settings.Default.nextTrack_mod, (VK)Properties.Settings.Default.nextTrack_vk);
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_PreviousTrack = new HotkeyPair((MOD)Properties.Settings.Default.previousTrack_mod, (VK)Properties.Settings.Default.previousTrack_vk);
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_PlayPause = new HotkeyPair((MOD)Properties.Settings.Default.playPause_mod, (VK)Properties.Settings.Default.playPause_vk);
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_VolumeUp = new HotkeyPair((MOD)Properties.Settings.Default.volumeUp_mod, (VK)Properties.Settings.Default.volumeUp_vk);
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_VolumeDown = new HotkeyPair((MOD)Properties.Settings.Default.volumeDown_mod, (VK)Properties.Settings.Default.volumeDown_vk);
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_VolumeMute = new HotkeyPair((MOD)Properties.Settings.Default.volumeMute_mod, (VK)Properties.Settings.Default.volumeMute_vk);
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_ShowWindow = new HotkeyPair((MOD)Properties.Settings.Default.showWindow_mod, (VK)Properties.Settings.Default.showWindow_vk);
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_Shortcuts = new HotkeyPair[] { _NextTrack, _PreviousTrack, _PlayPause, _VolumeUp, _VolumeDown, _VolumeMute, _ShowWindow };
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}
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public void Activate(Window win)
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{
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if (_source == null)
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{
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_windowHandle = new WindowInteropHelper(win).Handle;
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_source = HwndSource.FromHwnd(_windowHandle);
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AddHotkeys();
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}
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}
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public void AddHotkeys()
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{
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_source.AddHook(HwndHook);
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RegisterHotKey(_windowHandle, HOTKEY_ID, _NextTrack.GetMOD(), _NextTrack.GetVK());
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RegisterHotKey(_windowHandle, HOTKEY_ID, _PreviousTrack.GetMOD(), _PreviousTrack.GetVK());
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RegisterHotKey(_windowHandle, HOTKEY_ID, _PlayPause.GetMOD(), _PlayPause.GetVK());
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RegisterHotKey(_windowHandle, HOTKEY_ID, _VolumeUp.GetMOD(), _VolumeUp.GetVK());
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RegisterHotKey(_windowHandle, HOTKEY_ID, _VolumeDown.GetMOD(), _VolumeDown.GetVK());
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RegisterHotKey(_windowHandle, HOTKEY_ID, _VolumeMute.GetMOD(), _VolumeMute.GetVK());
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RegisterHotKey(_windowHandle, HOTKEY_ID, _ShowWindow.GetMOD(), _ShowWindow.GetVK());
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}
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public void RemoveHotkeys()
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{
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_source.RemoveHook(HwndHook);
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UnregisterHotKey(_windowHandle, HOTKEY_ID);
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}
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private IntPtr HwndHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
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{
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const int WM_HOTKEY = 0x0312;
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if (msg == WM_HOTKEY && wParam.ToInt32() == HOTKEY_ID)
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{
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uint vkey = ((uint)lParam >> 16) & 0xFFFF;
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if (vkey == _NextTrack.GetVK())
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_mpd.Next();
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else if (vkey == _PreviousTrack.GetVK())
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_mpd.Prev();
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else if (vkey == _PlayPause.GetVK())
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_mpd.PlayPause();
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else if (vkey == _VolumeUp.GetVK())
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_mpd.VolumeUp();
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else if (vkey == _VolumeDown.GetVK())
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_mpd.VolumeDown();
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else if (vkey == _VolumeMute.GetVK())
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_mpd.VolumeMute();
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else if (vkey == _ShowWindow.GetVK())
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{
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if (_appWindow == null)
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_appWindow = (MainWindow)Application.Current.MainWindow;
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if (_appWindow.WindowState == WindowState.Minimized)
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{
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_appWindow.Show();
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_appWindow.Activate();
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_appWindow.WindowState = WindowState.Normal;
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}
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else
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{
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if (_appWindow.IsActive)
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{
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_appWindow.Hide();
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_appWindow.WindowState = WindowState.Minimized;
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}
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else // not minimized but not in front
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{
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_appWindow.Show();
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_appWindow.Activate();
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_appWindow.WindowState = WindowState.Normal;
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}
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}
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}
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handled = true;
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}
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return IntPtr.Zero;
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}
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}
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} |