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

50 lines
1.3 KiB
C#

/*
* Copyright (c) 2024 ETH Zürich, IT Services
*
* 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 TaskbarKeyboardActivator : KeyboardActivator, ITaskbarActivator
{
private readonly ILogger logger;
private bool LeftWindows;
public event ActivatorEventHandler Activated;
public TaskbarKeyboardActivator(ILogger logger, INativeMethods nativeMethods) : base(nativeMethods)
{
this.logger = logger;
}
protected override bool Process(Key key, KeyModifier modifier, KeyState state)
{
var changed = false;
var pressed = state == KeyState.Pressed;
if (key == Key.LWin)
{
changed = LeftWindows != pressed;
LeftWindows = pressed;
}
if (LeftWindows && changed)
{
logger.Debug("Detected activation sequence for taskbar.");
Activated?.Invoke();
}
return false;
}
}
}