53 lines
1.4 KiB
C#
53 lines
1.4 KiB
C#
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/*
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* Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System.Windows.Input;
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using SafeExamBrowser.Logging.Contracts;
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using SafeExamBrowser.UserInterface.Contracts.Shell;
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using SafeExamBrowser.UserInterface.Contracts.Shell.Events;
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using SafeExamBrowser.WindowsApi.Contracts;
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using SafeExamBrowser.WindowsApi.Contracts.Events;
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namespace SafeExamBrowser.UserInterface.Shared.Activators
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{
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public class TaskbarKeyboardActivator : KeyboardActivator, ITaskbarActivator
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{
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private readonly ILogger logger;
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private bool leftWindows;
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public event ActivatorEventHandler Activated;
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public TaskbarKeyboardActivator(ILogger logger, INativeMethods nativeMethods) : base(nativeMethods)
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{
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this.logger = logger;
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}
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protected override bool Process(Key key, KeyModifier modifier, KeyState state)
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{
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var changed = false;
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var pressed = state == KeyState.Pressed;
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if (key == Key.LWin)
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{
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changed = leftWindows != pressed;
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leftWindows = pressed;
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}
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if (leftWindows && changed)
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{
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logger.Debug("Detected activation sequence for taskbar.");
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Activated?.Invoke();
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return true;
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}
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return false;
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}
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}
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}
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