seb-win-refactoring/SafeExamBrowser.UserInterface.Shared/Activators/ActionCenterKeyboardActivator.cs

66 lines
1.7 KiB
C#

/*
* Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
using System.Windows.Input;
using SafeExamBrowser.Logging.Contracts;
using SafeExamBrowser.UserInterface.Contracts.Shell;
using SafeExamBrowser.UserInterface.Contracts.Shell.Events;
using SafeExamBrowser.WindowsApi.Contracts;
using SafeExamBrowser.WindowsApi.Contracts.Events;
namespace SafeExamBrowser.UserInterface.Shared.Activators
{
public class ActionCenterKeyboardActivator : KeyboardActivator, IActionCenterActivator
{
private bool A, LeftWindows;
private ILogger logger;
public event ActivatorEventHandler Activated { add { } remove { } }
public event ActivatorEventHandler Deactivated { add { } remove { } }
public event ActivatorEventHandler Toggled;
public ActionCenterKeyboardActivator(ILogger logger, INativeMethods nativeMethods) : base(nativeMethods)
{
this.logger = logger;
}
protected override void OnBeforeResume()
{
A = false;
LeftWindows = false;
}
protected override bool Process(Key key, KeyModifier modifier, KeyState state)
{
var changed = false;
var pressed = state == KeyState.Pressed;
switch (key)
{
case Key.A:
changed = A != pressed;
A = pressed;
break;
case Key.LWin:
changed = LeftWindows != pressed;
LeftWindows = pressed;
break;
}
if (A && LeftWindows && changed)
{
logger.Debug("Detected toggle sequence for action center.");
Toggled?.Invoke();
return true;
}
return false;
}
}
}