73 lines
1.7 KiB
C#
73 lines
1.7 KiB
C#
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/*
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* Copyright (c) 2019 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 ActionCenterKeyboardActivator : KeyboardActivator, IActionCenterActivator
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{
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private bool A, LeftWindows;
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private ILogger logger;
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public event ActivatorEventHandler Activated { add { } remove { } }
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public event ActivatorEventHandler Deactivated { add { } remove { } }
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public event ActivatorEventHandler Toggled;
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public ActionCenterKeyboardActivator(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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public void Pause()
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{
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Paused = true;
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}
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public void Resume()
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{
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A = false;
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LeftWindows = false;
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Paused = false;
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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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switch (key)
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{
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case Key.A:
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changed = A != pressed;
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A = pressed;
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break;
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case Key.LWin:
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changed = LeftWindows != pressed;
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LeftWindows = pressed;
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break;
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}
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if (A && LeftWindows && changed)
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{
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logger.Debug("Detected toggle sequence for action center.");
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Toggled?.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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