using System; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Input; using System.Windows.Media; using NHotkey.Wpf; using Wox.Core.Resource; using Wox.Infrastructure.Hotkey; using Wox.Plugin; namespace Wox { public partial class HotkeyControl : UserControl { public HotkeyModel CurrentHotkey { get; private set; } public bool CurrentHotkeyAvailable { get; private set; } public event EventHandler HotkeyChanged; protected virtual void OnHotkeyChanged() { EventHandler handler = HotkeyChanged; if (handler != null) handler(this, EventArgs.Empty); } public HotkeyControl() { InitializeComponent(); } void TbHotkey_OnPreviewKeyDown(object sender, KeyEventArgs e) { e.Handled = true; tbMsg.Visibility = Visibility.Hidden; //when alt is pressed, the real key should be e.SystemKey Key key = (e.Key == Key.System ? e.SystemKey : e.Key); SpecialKeyState specialKeyState = GlobalHotkey.Instance.CheckModifiers(); var hotkeyModel = new HotkeyModel( specialKeyState.AltPressed, specialKeyState.ShiftPressed, specialKeyState.WinPressed, specialKeyState.CtrlPressed, key); var hotkeyString = hotkeyModel.ToString(); if (hotkeyString == tbHotkey.Text) { return; } Dispatcher.InvokeAsync(async () => { await Task.Delay(500); SetHotkey(hotkeyModel); }); } public void SetHotkey(HotkeyModel keyModel, bool triggerValidate = true) { CurrentHotkey = keyModel; tbHotkey.Text = CurrentHotkey.ToString(); tbHotkey.Select(tbHotkey.Text.Length, 0); if (triggerValidate) { CurrentHotkeyAvailable = CheckHotkeyAvailability(); if (!CurrentHotkeyAvailable) { tbMsg.Foreground = new SolidColorBrush(Colors.Red); tbMsg.Text = InternationalizationManager.Instance.GetTranslation("hotkeyUnavailable"); } else { tbMsg.Foreground = new SolidColorBrush(Colors.Green); tbMsg.Text = InternationalizationManager.Instance.GetTranslation("succeed"); } tbMsg.Visibility = Visibility.Visible; OnHotkeyChanged(); } } public void SetHotkey(string keyStr, bool triggerValidate = true) { SetHotkey(new HotkeyModel(keyStr), triggerValidate); } private bool CheckHotkeyAvailability() { try { HotkeyManager.Current.AddOrReplace("HotkeyAvailabilityTest", CurrentHotkey.CharKey, CurrentHotkey.ModifierKeys, (sender, e) => { }); return true; } catch { } finally { HotkeyManager.Current.Remove("HotkeyAvailabilityTest"); } return false; } public new bool IsFocused { get { return tbHotkey.IsFocused; } } } }