seb-win-refactoring/SafeExamBrowser.Client/Operations/MouseInterceptorOperation.cs

57 lines
1.7 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 SafeExamBrowser.Contracts.Core.OperationModel;
using SafeExamBrowser.Contracts.Core.OperationModel.Events;
using SafeExamBrowser.Contracts.I18n;
using SafeExamBrowser.Contracts.Logging;
using SafeExamBrowser.Contracts.Monitoring;
using SafeExamBrowser.Contracts.WindowsApi;
namespace SafeExamBrowser.Client.Operations
{
internal class MouseInterceptorOperation : IOperation
{
private ILogger logger;
private IMouseInterceptor mouseInterceptor;
private INativeMethods nativeMethods;
public event ActionRequiredEventHandler ActionRequired { add { } remove { } }
public event StatusChangedEventHandler StatusChanged;
public MouseInterceptorOperation(
ILogger logger,
IMouseInterceptor mouseInterceptor,
INativeMethods nativeMethods)
{
this.logger = logger;
this.mouseInterceptor = mouseInterceptor;
this.nativeMethods = nativeMethods;
}
public OperationResult Perform()
{
logger.Info("Starting mouse interception...");
StatusChanged?.Invoke(TextKey.OperationStatus_StartMouseInterception);
nativeMethods.RegisterMouseHook(mouseInterceptor);
return OperationResult.Success;
}
public OperationResult Revert()
{
logger.Info("Stopping mouse interception...");
StatusChanged?.Invoke(TextKey.OperationStatus_StopMouseInterception);
nativeMethods.DeregisterMouseHook(mouseInterceptor);
return OperationResult.Success;
}
}
}