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Diffstat (limited to 'win/C#/HandBrake.ApplicationServices/Services/PresetService.cs')
| -rw-r--r-- | win/C#/HandBrake.ApplicationServices/Services/PresetService.cs | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/win/C#/HandBrake.ApplicationServices/Services/PresetService.cs b/win/C#/HandBrake.ApplicationServices/Services/PresetService.cs new file mode 100644 index 000000000..dbfb8782f --- /dev/null +++ b/win/C#/HandBrake.ApplicationServices/Services/PresetService.cs @@ -0,0 +1,350 @@ +/* PresetService.cs $
+ This file is part of the HandBrake source code.
+ Homepage: <http://handbrake.fr>.
+ It may be used under the terms of the GNU General Public License. */
+
+namespace HandBrake.ApplicationServices.Services
+{
+ using System;
+ using System.Collections.Generic;
+ using System.Collections.ObjectModel;
+ using System.ComponentModel;
+ using System.Diagnostics;
+ using System.IO;
+ using System.Linq;
+ using System.Text.RegularExpressions;
+ using System.Windows.Data;
+ using System.Xml.Serialization;
+
+ using HandBrake.ApplicationServices.Model;
+ using HandBrake.ApplicationServices.Services.Interfaces;
+
+ /// <summary>
+ /// The preset service manages HandBrake's presets
+ /// </summary>
+ public class PresetService : IPresetService
+ {
+ /**
+ * TODO:
+ * - Wire this into the Forms and WPF UI's
+ * - Note: This is untested so far. It'll likely need fixes before it can be used.
+ **/
+
+ #region Private Variables
+
+ /// <summary>
+ /// XML Serializer
+ /// </summary>
+ private static readonly XmlSerializer Ser = new XmlSerializer(typeof(List<Preset>));
+
+ /// <summary>
+ /// The User Preset file
+ /// </summary>
+ private readonly string userPresetFile = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\HandBrake\\user_presets.xml";
+
+ /// <summary>
+ /// The Built In Presets File
+ /// </summary>
+ private readonly string builtInPresetFile = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\HandBrake\\presets.xml";
+
+ /// <summary>
+ /// A Collection of presets
+ /// </summary>
+ private ObservableCollection<Preset> presets = new ObservableCollection<Preset>();
+
+ #endregion
+
+ /// <summary>
+ /// Initializes a new instance of the <see cref="PresetService"/> class.
+ /// </summary>
+ public PresetService()
+ {
+ this.Presets = CollectionViewSource.GetDefaultView(this.presets);
+ this.LoadPresets();
+ }
+
+ /// <summary>
+ /// Gets or sets a Collection of presets.
+ /// </summary>
+ public ICollectionView Presets { get; set; }
+
+ #region Public Methods
+
+ /// <summary>
+ /// Add a new preset to the system
+ /// </summary>
+ /// <param name="preset">
+ /// A Preset to add
+ /// </param>
+ /// <returns>
+ /// True if added,
+ /// False if name already exists
+ /// </returns>
+ public bool Add(Preset preset)
+ {
+ if (this.CheckIfPresetExists(preset.Name) == false)
+ {
+ this.presets.Add(preset);
+
+ // Update the presets file
+ this.UpdatePresetFiles();
+ return true;
+ }
+
+ return false;
+ }
+
+ /// <summary>
+ /// Remove a preset with a given name from either the built in or user preset list.
+ /// </summary>
+ /// <param name="preset">
+ /// The Preset to remove
+ /// </param>
+ public void Remove(Preset preset)
+ {
+ this.presets.Remove(preset);
+
+ // Update the presets file
+ this.UpdatePresetFiles();
+ }
+
+ /// <summary>
+ /// Get a Preset
+ /// </summary>
+ /// <param name="name">
+ /// The name of the preset to get
+ /// </param>
+ /// <returns>
+ /// A Preset or null object
+ /// </returns>
+ public Preset GetPreset(string name)
+ {
+ return this.presets.FirstOrDefault(item => item.Name == name);
+ }
+
+ /// <summary>
+ /// Clear Built-in Presets
+ /// </summary>
+ public void ClearBuiltIn()
+ {
+ List<Preset> remove = this.presets.Where(p => p.IsBuildIn).ToList();
+ foreach (Preset preset in remove)
+ {
+ this.presets.Remove(preset);
+ }
+ }
+
+ /// <summary>
+ /// Clear all presets
+ /// </summary>
+ public void ClearAll()
+ {
+ this.presets.Clear();
+ }
+
+ /// <summary>
+ /// Reads the CLI's CLI output format and load's them into the preset List Preset
+ /// </summary>
+ /// <param name="cliPath">
+ /// The Path to the CLI, leave blank for current folder.
+ /// </param>
+ public void UpdateBuiltInPresets(string cliPath)
+ {
+ // Create a new tempory file and execute the CLI to get the built in Presets.
+ string handbrakeCLIPath = Path.Combine(cliPath, "HandBrakeCLI.exe");
+ string presetsPath = Path.Combine(Path.GetTempPath(), "temp_presets.dat");
+ string strCmdLine = String.Format(@"cmd /c """"{0}"" --preset-list >""{1}"" 2>&1""", handbrakeCLIPath, presetsPath);
+
+ ProcessStartInfo getPresets = new ProcessStartInfo("CMD.exe", strCmdLine) { WindowStyle = ProcessWindowStyle.Hidden };
+
+ Process hbproc = Process.Start(getPresets);
+ hbproc.WaitForExit();
+ hbproc.Dispose();
+ hbproc.Close();
+
+ // Clear the current built in Presets and now parse the tempory Presets file.
+ this.presets.Clear();
+
+ if (File.Exists(presetsPath))
+ {
+ StreamReader presetInput = new StreamReader(presetsPath);
+
+ string category = String.Empty;
+
+ while (!presetInput.EndOfStream)
+ {
+ string line = presetInput.ReadLine();
+
+ // Found the beginning of a preset block
+ if (line != null && line.Contains("<") && !line.Contains("<<"))
+ {
+ category = line.Replace("<", string.Empty).Trim();
+ }
+
+ // Found a preset
+ if (line != null && line.Contains("+"))
+ {
+ Regex r = new Regex("(: )"); // Split on hyphens.
+ string[] presetName = r.Split(line);
+
+ bool pic = false;
+ if (presetName[2].Contains("crop"))
+ {
+ pic = true;
+ }
+
+ Preset newPreset = new Preset
+ {
+ Category = category,
+ Name = presetName[0].Replace("+", string.Empty).Trim(),
+ Query = presetName[2],
+ Version = Init.Version,
+ CropSettings = pic,
+ Description = string.Empty // Maybe one day we will populate this.
+ };
+ this.presets.Add(newPreset);
+ }
+ }
+ presetInput.Close();
+ presetInput.Dispose();
+ }
+
+ // Finally, Create a new or update the current Presets.xml file
+ this.UpdatePresetFiles();
+ }
+
+ /// <summary>
+ /// Check if the built in Presets stored are not out of date.
+ /// Update them if they are.
+ /// </summary>
+ /// <returns>true if out of date</returns>
+ public bool CheckIfPresetsAreOutOfDate()
+ {
+ // Update built-in Presets if the built-in Presets belong to an older version.
+ if (this.presets.Count != 0)
+ {
+ if (this.presets[0].Version != Init.Version)
+ {
+ this.UpdateBuiltInPresets(string.Empty);
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /// <summary>
+ /// Check if the preset "name" exists in either Presets or UserPresets lists.
+ /// </summary>
+ /// <param name="name">Name of the preset</param>
+ /// <returns>True if found</returns>
+ public bool CheckIfPresetExists(string name)
+ {
+ return name == string.Empty || this.presets.Any(item => item.Name == name);
+ }
+
+ #endregion
+
+ #region Private Helpers
+
+ /// <summary>
+ /// Recover from a courrpted preset file
+ /// Add .old to the current filename, and delete the current file.
+ /// </summary>
+ /// <param name="file">
+ /// The broken presets file.
+ /// </param>
+ private static void RecoverFromCorruptedPresetFile(string file)
+ {
+ // Recover from Error.
+ if (File.Exists(file))
+ {
+ string disabledFile = file + ".old";
+ File.Move(file, disabledFile);
+ if (File.Exists(file))
+ {
+ File.Delete(file);
+ }
+ }
+ }
+
+ /// <summary>
+ /// Load in the Built-in and User presets into the collection
+ /// </summary>
+ private void LoadPresets()
+ {
+ // First clear the Presets arraylists
+ this.presets.Clear();
+
+ // Load in the users Presets from UserPresets.xml
+ try
+ {
+ if (File.Exists(this.builtInPresetFile))
+ {
+ StreamReader reader = new StreamReader(this.builtInPresetFile);
+ List<Preset> list = (List<Preset>)Ser.Deserialize(reader);
+ foreach (Preset preset in list)
+ {
+ this.presets.Add(preset);
+ }
+
+ reader.Close();
+ }
+ }
+ catch (Exception)
+ {
+ RecoverFromCorruptedPresetFile(this.builtInPresetFile);
+ this.UpdateBuiltInPresets(string.Empty);
+ }
+
+ // Load in the users Presets from UserPresets.xml
+ try
+ {
+ if (File.Exists(this.userPresetFile))
+ {
+ StreamReader reader = new StreamReader(this.userPresetFile);
+ List<Preset> list = (List<Preset>)Ser.Deserialize(reader);
+ foreach (Preset preset in list)
+ {
+ this.presets.Add(preset);
+ }
+
+ reader.Close();
+ }
+ }
+ catch (Exception)
+ {
+ RecoverFromCorruptedPresetFile(this.userPresetFile);
+ }
+ }
+
+ /// <summary>
+ /// Update the preset files
+ /// </summary>
+ private void UpdatePresetFiles()
+ {
+ try
+ {
+ using (FileStream strm = new FileStream(this.builtInPresetFile, FileMode.Create, FileAccess.Write))
+ {
+ Ser.Serialize(strm, this.presets.Where(p => p.IsBuildIn));
+ strm.Close();
+ strm.Dispose();
+ }
+
+ using (FileStream strm = new FileStream(this.userPresetFile, FileMode.Create, FileAccess.Write))
+ {
+ Ser.Serialize(strm, this.presets.Where(p => p.IsBuildIn == false));
+ strm.Close();
+ strm.Dispose();
+ }
+ }
+ catch (Exception exc)
+ {
+ throw new Exception("Unable to write to the file. Please make sure the location has the correct permissions for file writing.\n Error Information: \n\n", exc);
+ }
+ }
+
+ #endregion
+ }
+}
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