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

78 lines
2 KiB
C#

/*
* Copyright (c) 2019 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.Threading.Tasks;
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 ActionCenterTouchActivator : TouchActivator, IActionCenterActivator
{
private bool isDown;
private ILogger logger;
private INativeMethods nativeMethods;
public event ActivatorEventHandler Activated;
public event ActivatorEventHandler Deactivated { add { } remove { } }
public event ActivatorEventHandler Toggled { add { } remove { } }
public ActionCenterTouchActivator(ILogger logger, INativeMethods nativeMethods) : base(nativeMethods)
{
this.logger = logger;
this.nativeMethods = nativeMethods;
}
public void Pause()
{
Paused = true;
}
public void Resume()
{
isDown = false;
Paused = false;
}
protected override bool Process(MouseButton button, MouseButtonState state, MouseInformation info)
{
var inActivationArea = 0 < info.X && info.X < 100;
if (button == MouseButton.Left)
{
if (state == MouseButtonState.Released)
{
isDown = false;
}
if (state == MouseButtonState.Pressed && inActivationArea)
{
isDown = true;
Task.Delay(100).ContinueWith(_ => CheckPosition());
}
}
return false;
}
private void CheckPosition()
{
var (x, y) = nativeMethods.GetCursorPosition();
var hasMoved = x > 200;
if (isDown && hasMoved)
{
logger.Debug("Detected activation gesture for action center.");
Activated?.Invoke();
}
}
}
}