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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="ScanServiceWrapper.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// We have multiple implementations of IScan. This is a wrapper class for the GUI so that the
// implementation used is controllable via user settings.
// Over time, this class will go away when the LibHB and process isolation code matures.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.Services
{
using System;
using Caliburn.Micro;
using HandBrake.ApplicationServices.Exceptions;
using HandBrake.ApplicationServices.Isolation;
using HandBrake.ApplicationServices.Parsing;
using HandBrake.ApplicationServices.Services;
using HandBrake.ApplicationServices.Services.Interfaces;
using HandBrake.Interop.Interfaces;
/// <summary>
/// We have multiple implementations of IScan. This is a wrapper class for the GUI so that the
/// implementation used is controllable via user settings.
/// Over time, this class will go away when the LibHB and process isolation code matures.
/// </summary>
public class ScanServiceWrapper : IScanServiceWrapper
{
#region Constants and Fields
/// <summary>
/// The scan service.
/// </summary>
private readonly IScan scanService;
#endregion
#region Constructors and Destructors
/// <summary>
/// Initializes a new instance of the <see cref="ScanServiceWrapper"/> class.
/// </summary>
/// <param name="userSettingService">
/// The user setting service.
/// </param>
public ScanServiceWrapper(IUserSettingService userSettingService)
{
var useLibHb = userSettingService.GetUserSetting<bool>(UserSettingConstants.EnableLibHb);
var useProcessIsolation =
userSettingService.GetUserSetting<bool>(UserSettingConstants.EnableProcessIsolation);
string port = userSettingService.GetUserSetting<string>(UserSettingConstants.ServerPort);
if (useLibHb)
{
try
{
if (useProcessIsolation)
{
this.scanService = new IsolatedScanService(port);
}
else
{
IHandBrakeInstance handBrakeInstance = IoC.Get<IHandBrakeInstance>();
this.scanService = new LibScan(userSettingService, handBrakeInstance);
}
}
catch(Exception exc)
{
// Try to recover from errors.
userSettingService.SetUserSetting(UserSettingConstants.EnableLibHb, false);
throw new GeneralApplicationException("Unable to initialise LibHB or Background worker service", "Falling back to using HandBrakeCLI.exe. Setting has been reset", exc);
}
}
else
{
this.scanService = new ScanService(userSettingService);
}
this.scanService.ScanCompleted += this.ScanServiceScanCompleted;
this.scanService.ScanStared += this.ScanServiceScanStared;
this.scanService.ScanStatusChanged += this.ScanServiceScanStatusChanged;
}
/// <summary>
/// The scan service scan status changed event
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The ScanProgressEventArgs.
/// </param>
private void ScanServiceScanStatusChanged(object sender, HandBrake.ApplicationServices.EventArgs.ScanProgressEventArgs e)
{
this.ScanStatusChanged(sender, e);
}
/// <summary>
/// The scan service scan stared event
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The EventArgs
/// </param>
private void ScanServiceScanStared(object sender, EventArgs e)
{
this.ScanStared(sender, e);
}
/// <summary>
/// The scan service scan completed event
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The ScanCompletedEventArgs
/// </param>
private void ScanServiceScanCompleted(object sender, HandBrake.ApplicationServices.EventArgs.ScanCompletedEventArgs e)
{
this.ScanCompleted(sender, e);
}
#endregion
#region Events
/// <summary>
/// The scan completed.
/// </summary>
public event ScanCompletedStatus ScanCompleted;
/// <summary>
/// The scan stared.
/// </summary>
public event EventHandler ScanStared;
/// <summary>
/// The scan status changed.
/// </summary>
public event ScanProgessStatus ScanStatusChanged;
#endregion
#region Properties
/// <summary>
/// Gets ActivityLog.
/// </summary>
public string ActivityLog
{
get
{
return this.scanService.ActivityLog;
}
}
/// <summary>
/// Gets a value indicating whether IsScanning.
/// </summary>
public bool IsScanning
{
get
{
return this.scanService.IsScanning;
}
}
/// <summary>
/// Gets the Souce Data.
/// </summary>
public Source SouceData
{
get
{
return this.scanService.SouceData;
}
}
#endregion
#region Implemented Interfaces
#region IScan
/// <summary>
/// Take a Scan Log file, and process it as if it were from the CLI.
/// </summary>
/// <param name="path">
/// The path to the log file.
/// </param>
public void DebugScanLog(string path)
{
this.scanService.DebugScanLog(path);
}
/// <summary>
/// Shutdown the service.
/// </summary>
public void Shutdown()
{
this.scanService.Shutdown();
}
/// <summary>
/// Scan a Source Path.
/// Title 0: scan all
/// </summary>
/// <param name="sourcePath">
/// Path to the file to scan
/// </param>
/// <param name="title">
/// int title number. 0 for scan all
/// </param>
/// <param name="previewCount">
/// The preview Count.
/// </param>
/// <param name="postAction">
/// The post Action.
/// </param>
public void Scan(string sourcePath, int title, int previewCount, Action<bool> postAction)
{
this.scanService.Scan(sourcePath, title, previewCount, postAction);
}
/// <summary>
/// Kill the scan
/// </summary>
public void Stop()
{
this.scanService.Stop();
}
#endregion
#endregion
}
}
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