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[PowerAccent] Move low-level keyboard hook to c++ (#20190)
* Move llkeyboardhook to c++ * expect.txt * Address PR comment - Resolve namespaces * Address PR comments - CallNextHook and correct char selection * Also unpress the letter key Co-authored-by: Jaime Bernardo <jaime@janeasystems.com>
This commit is contained in:
Stefan Markovic
@@ -2,173 +2,159 @@
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// The Microsoft Corporation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System.Diagnostics;
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using Microsoft.PowerToys.Settings.UI.Library.Enumerations;
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using System.Windows;
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using PowerAccent.Core.Services;
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using PowerAccent.Core.Tools;
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using PowerToys.PowerAccentKeyboardService;
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namespace PowerAccent.Core;
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public class PowerAccent : IDisposable
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{
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private readonly SettingsService _settingService = new SettingsService();
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private readonly KeyboardListener _keyboardListener = new KeyboardListener();
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private readonly SettingsService _settingService;
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private LetterKey? letterPressed;
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private bool _visible;
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private char[] _characters = Array.Empty<char>();
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private int _selectedIndex = -1;
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private Stopwatch _stopWatch;
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private bool _triggeredWithSpace;
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public event Action<bool, char[]> OnChangeDisplay;
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public event Action<int, char> OnSelectCharacter;
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private KeyboardListener _keyboardListener;
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public PowerAccent()
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{
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_keyboardListener.KeyDown += PowerAccent_KeyDown;
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_keyboardListener.KeyUp += PowerAccent_KeyUp;
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_keyboardListener = new KeyboardListener();
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_keyboardListener.InitHook();
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_settingService = new SettingsService(_keyboardListener);
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SetEvents();
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}
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private bool PowerAccent_KeyDown(object sender, KeyboardListener.RawKeyEventArgs args)
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private void SetEvents()
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{
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if (Enum.IsDefined(typeof(LetterKey), (int)args.Key))
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_keyboardListener.SetShowToolbarEvent(new PowerToys.PowerAccentKeyboardService.ShowToolbar((LetterKey letterKey) =>
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{
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_stopWatch = Stopwatch.StartNew();
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letterPressed = (LetterKey)args.Key;
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}
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TriggerKey? triggerPressed = null;
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if (letterPressed.HasValue)
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{
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if (Enum.IsDefined(typeof(TriggerKey), (int)args.Key))
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Application.Current.Dispatcher.Invoke(() =>
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{
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triggerPressed = (TriggerKey)args.Key;
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ShowToolbar(letterKey);
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});
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}));
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if ((triggerPressed == TriggerKey.Space && _settingService.ActivationKey == PowerAccentActivationKey.LeftRightArrow) ||
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((triggerPressed == TriggerKey.Left || triggerPressed == TriggerKey.Right) && _settingService.ActivationKey == PowerAccentActivationKey.Space))
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{
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triggerPressed = null;
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}
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}
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}
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if (!_visible && letterPressed.HasValue && triggerPressed.HasValue)
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_keyboardListener.SetHideToolbarEvent(new PowerToys.PowerAccentKeyboardService.HideToolbar((InputType inputType) =>
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{
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// Keep track if it was triggered with space so that it can be typed on false starts.
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_triggeredWithSpace = triggerPressed.Value == TriggerKey.Space;
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_visible = true;
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_characters = WindowsFunctions.IsCapitalState() ? ToUpper(_settingService.GetLetterKey(letterPressed.Value)) : _settingService.GetLetterKey(letterPressed.Value);
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Task.Delay(_settingService.InputTime).ContinueWith(
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t =>
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Application.Current.Dispatcher.Invoke(() =>
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{
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SendInputAndHideToolbar(inputType);
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});
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}));
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_keyboardListener.SetNextCharEvent(new PowerToys.PowerAccentKeyboardService.NextChar((TriggerKey triggerKey) =>
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{
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Application.Current.Dispatcher.Invoke(() =>
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{
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ProcessNextChar(triggerKey);
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});
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}));
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}
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private void ShowToolbar(LetterKey letterKey)
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{
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_visible = true;
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_characters = WindowsFunctions.IsCapitalState() ? ToUpper(SettingsService.GetDefaultLetterKey(letterKey)) : SettingsService.GetDefaultLetterKey(letterKey);
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Task.Delay(_settingService.InputTime).ContinueWith(
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t =>
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{
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if (_visible)
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{
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if (_visible)
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OnChangeDisplay?.Invoke(true, _characters);
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}
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}, TaskScheduler.FromCurrentSynchronizationContext());
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}
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private void SendInputAndHideToolbar(InputType inputType)
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{
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switch (inputType)
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{
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case InputType.Space:
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{
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WindowsFunctions.Insert(' ');
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break;
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}
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case InputType.Char:
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{
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if (_selectedIndex != -1)
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{
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OnChangeDisplay?.Invoke(true, _characters);
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WindowsFunctions.Insert(_characters[_selectedIndex], true);
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}
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}, TaskScheduler.FromCurrentSynchronizationContext());
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break;
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}
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}
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if (_visible && triggerPressed.HasValue)
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OnChangeDisplay?.Invoke(false, null);
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_selectedIndex = -1;
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_visible = false;
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}
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private void ProcessNextChar(TriggerKey triggerKey)
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{
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if (_visible && _selectedIndex == -1)
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{
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if (_selectedIndex == -1)
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if (triggerKey == TriggerKey.Left)
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{
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if (triggerPressed.Value == TriggerKey.Left)
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{
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_selectedIndex = (_characters.Length / 2) - 1;
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}
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if (triggerPressed.Value == TriggerKey.Right)
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{
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_selectedIndex = _characters.Length / 2;
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}
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if (triggerPressed.Value == TriggerKey.Space)
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{
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_selectedIndex = 0;
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}
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if (_selectedIndex < 0)
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{
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_selectedIndex = 0;
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}
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if (_selectedIndex > _characters.Length - 1)
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{
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_selectedIndex = _characters.Length - 1;
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}
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OnSelectCharacter?.Invoke(_selectedIndex, _characters[_selectedIndex]);
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return false;
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_selectedIndex = (_characters.Length / 2) - 1;
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}
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if (triggerPressed.Value == TriggerKey.Space)
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if (triggerKey == TriggerKey.Right)
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{
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if (_selectedIndex < _characters.Length - 1)
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{
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++_selectedIndex;
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}
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else
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{
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_selectedIndex = 0;
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}
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_selectedIndex = _characters.Length / 2;
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}
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if (triggerPressed.Value == TriggerKey.Left && _selectedIndex > 0)
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if (triggerKey == TriggerKey.Space)
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{
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--_selectedIndex;
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_selectedIndex = 0;
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}
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if (triggerPressed.Value == TriggerKey.Right && _selectedIndex < _characters.Length - 1)
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if (_selectedIndex < 0)
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{
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++_selectedIndex;
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_selectedIndex = 0;
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}
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if (_selectedIndex > _characters.Length - 1)
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{
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_selectedIndex = _characters.Length - 1;
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}
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OnSelectCharacter?.Invoke(_selectedIndex, _characters[_selectedIndex]);
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return false;
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return;
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}
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return true;
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}
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private bool PowerAccent_KeyUp(object sender, KeyboardListener.RawKeyEventArgs args)
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{
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if (Enum.IsDefined(typeof(LetterKey), (int)args.Key))
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if (triggerKey == TriggerKey.Space)
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{
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letterPressed = null;
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_stopWatch.Stop();
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if (_visible)
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if (_selectedIndex < _characters.Length - 1)
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{
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if (_stopWatch.ElapsedMilliseconds < _settingService.InputTime)
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{
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/* Debug.WriteLine("Insert before inputTime - " + _stopWatch.ElapsedMilliseconds); */
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// False start, we should output the space if it was the trigger.
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if (_triggeredWithSpace)
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{
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WindowsFunctions.Insert(' ');
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}
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OnChangeDisplay?.Invoke(false, null);
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_selectedIndex = -1;
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_visible = false;
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return false;
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}
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/* Debug.WriteLine("Insert after inputTime - " + _stopWatch.ElapsedMilliseconds); */
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OnChangeDisplay?.Invoke(false, null);
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if (_selectedIndex != -1)
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{
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WindowsFunctions.Insert(_characters[_selectedIndex], true);
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}
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_selectedIndex = -1;
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_visible = false;
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++_selectedIndex;
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}
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else
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{
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_selectedIndex = 0;
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}
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}
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return true;
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if (triggerKey == TriggerKey.Left && _selectedIndex > 0)
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{
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--_selectedIndex;
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}
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if (triggerKey == TriggerKey.Right && _selectedIndex < _characters.Length - 1)
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{
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++_selectedIndex;
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}
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OnSelectCharacter?.Invoke(_selectedIndex, _characters[_selectedIndex]);
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}
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public Point GetDisplayCoordinates(Size window)
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@@ -182,14 +168,9 @@ public class PowerAccent : IDisposable
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return Calculation.GetRawCoordinatesFromPosition(position, screen, window);
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}
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public char[] GetLettersFromKey(LetterKey letter)
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{
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return _settingService.GetLetterKey(letter);
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}
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public void Dispose()
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{
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_keyboardListener.Dispose();
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_keyboardListener.UnInitHook();
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GC.SuppressFinalize(this);
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}
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