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LukePulverenti Luke Pulverenti luke pulverenti
2012-07-12 02:55:27 -04:00
commit b50f78e5da
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152
MediaBrowser.Controller/IO/DirectoryWatchers.cs Normal file
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.Entities;
namespace MediaBrowser.Controller.IO
{
public class DirectoryWatchers
{
private List<FileSystemWatcher> FileSystemWatchers = new List<FileSystemWatcher>();
private Timer updateTimer = null;
private List<string> affectedPaths = new List<string>();
private const int TimerDelayInSeconds = 5;
public void Start()
{
List<string> pathsToWatch = new List<string>();
var rootFolder = Kernel.Instance.RootFolder;
pathsToWatch.Add(rootFolder.Path);
foreach (Folder folder in rootFolder.FolderChildren)
{
foreach (Folder subFolder in folder.FolderChildren)
{
if (Path.IsPathRooted(subFolder.Path))
{
string parent = Path.GetDirectoryName(subFolder.Path);
if (!pathsToWatch.Contains(parent))
{
pathsToWatch.Add(parent);
}
}
}
}
foreach (string path in pathsToWatch)
{
FileSystemWatcher watcher = new FileSystemWatcher(path, "*");
watcher.IncludeSubdirectories = true;
watcher.Changed += watcher_Changed;
// All the others seem to trigger change events on the parent, so let's keep it simple for now.
//watcher.Created += watcher_Changed;
//watcher.Deleted += watcher_Changed;
//watcher.Renamed += watcher_Changed;
watcher.EnableRaisingEvents = true;
FileSystemWatchers.Add(watcher);
}
}
void watcher_Changed(object sender, FileSystemEventArgs e)
{
if (!affectedPaths.Contains(e.FullPath))
{
affectedPaths.Add(e.FullPath);
}
if (updateTimer == null)
{
updateTimer = new Timer(TimerStopped, null, TimeSpan.FromSeconds(TimerDelayInSeconds), TimeSpan.FromMilliseconds(-1));
}
else
{
updateTimer.Change(TimeSpan.FromSeconds(TimerDelayInSeconds), TimeSpan.FromMilliseconds(-1));
}
}
private void TimerStopped(object stateInfo)
{
updateTimer.Dispose();
updateTimer = null;
List<string> paths = affectedPaths;
affectedPaths = new List<string>();
ProcessPathChanges(paths);
}
private void ProcessPathChanges(IEnumerable<string> paths)
{
List<BaseItem> itemsToRefresh = new List<BaseItem>();
foreach (BaseItem item in paths.Select(p => GetAffectedBaseItem(p)))
{
if (item != null && !itemsToRefresh.Contains(item))
{
itemsToRefresh.Add(item);
}
}
if (itemsToRefresh.Any(i =>
{
var folder = i as Folder;
return folder != null && folder.IsRoot;
}))
{
Kernel.Instance.ReloadRoot();
}
else
{
Parallel.For(0, itemsToRefresh.Count, i =>
{
Kernel.Instance.ReloadItem(itemsToRefresh[i]);
});
}
}
private BaseItem GetAffectedBaseItem(string path)
{
BaseItem item = null;
while (item == null)
{
item = Kernel.Instance.RootFolder.FindByPath(path);
path = Path.GetDirectoryName(path);
}
return item;
}
public void Stop()
{
foreach (FileSystemWatcher watcher in FileSystemWatchers)
{
watcher.Changed -= watcher_Changed;
watcher.EnableRaisingEvents = false;
watcher.Dispose();
}
if (updateTimer != null)
{
updateTimer.Dispose();
updateTimer = null;
}
FileSystemWatchers.Clear();
affectedPaths.Clear();
}
}
}

182
MediaBrowser.Controller/IO/Shortcut.cs Normal file
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using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace MediaBrowser.Controller.IO
{
public static class Shortcut
{
#region Signitures were imported from http://pinvoke.net
[Flags()]
enum SLGP_FLAGS
{
/// <summary>Retrieves the standard short (8.3 format) file name</summary>
SLGP_SHORTPATH = 0x1,
/// <summary>Retrieves the Universal Naming Convention (UNC) path name of the file</summary>
SLGP_UNCPRIORITY = 0x2,
/// <summary>Retrieves the raw path name. A raw path is something that might not exist and may include environment variables that need to be expanded</summary>
SLGP_RAWPATH = 0x4
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
struct WIN32_FIND_DATAW
{
public uint dwFileAttributes;
public long ftCreationTime;
public long ftLastAccessTime;
public long ftLastWriteTime;
public uint nFileSizeHigh;
public uint nFileSizeLow;
public uint dwReserved0;
public uint dwReserved1;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
public string cFileName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 14)]
public string cAlternateFileName;
}
[Flags()]
enum SLR_FLAGS
{
/// <summary>
/// Do not display a dialog box if the link cannot be resolved. When SLR_NO_UI is set,
/// the high-order word of fFlags can be set to a time-out value that specifies the
/// maximum amount of time to be spent resolving the link. The function returns if the
/// link cannot be resolved within the time-out duration. If the high-order word is set
/// to zero, the time-out duration will be set to the default value of 3,000 milliseconds
/// (3 seconds). To specify a value, set the high word of fFlags to the desired time-out
/// duration, in milliseconds.
/// </summary>
SLR_NO_UI = 0x1,
/// <summary>Obsolete and no longer used</summary>
SLR_ANY_MATCH = 0x2,
/// <summary>If the link object has changed, update its path and list of identifiers.
/// If SLR_UPDATE is set, you do not need to call IPersistFile::IsDirty to determine
/// whether or not the link object has changed.</summary>
SLR_UPDATE = 0x4,
/// <summary>Do not update the link information</summary>
SLR_NOUPDATE = 0x8,
/// <summary>Do not execute the search heuristics</summary>
SLR_NOSEARCH = 0x10,
/// <summary>Do not use distributed link tracking</summary>
SLR_NOTRACK = 0x20,
/// <summary>Disable distributed link tracking. By default, distributed link tracking tracks
/// removable media across multiple devices based on the volume name. It also uses the
/// Universal Naming Convention (UNC) path to track remote file systems whose drive letter
/// has changed. Setting SLR_NOLINKINFO disables both types of tracking.</summary>
SLR_NOLINKINFO = 0x40,
/// <summary>Call the Microsoft Windows Installer</summary>
SLR_INVOKE_MSI = 0x80
}
/// <summary>The IShellLink interface allows Shell links to be created, modified, and resolved</summary>
[ComImport(), InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("000214F9-0000-0000-C000-000000000046")]
interface IShellLinkW
{
/// <summary>Retrieves the path and file name of a Shell link object</summary>
void GetPath([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out WIN32_FIND_DATAW pfd, SLGP_FLAGS fFlags);
/// <summary>Retrieves the list of item identifiers for a Shell link object</summary>
void GetIDList(out IntPtr ppidl);
/// <summary>Sets the pointer to an item identifier list (PIDL) for a Shell link object.</summary>
void SetIDList(IntPtr pidl);
/// <summary>Retrieves the description string for a Shell link object</summary>
void GetDescription([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszName, int cchMaxName);
/// <summary>Sets the description for a Shell link object. The description can be any application-defined string</summary>
void SetDescription([MarshalAs(UnmanagedType.LPWStr)] string pszName);
/// <summary>Retrieves the name of the working directory for a Shell link object</summary>
void GetWorkingDirectory([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszDir, int cchMaxPath);
/// <summary>Sets the name of the working directory for a Shell link object</summary>
void SetWorkingDirectory([MarshalAs(UnmanagedType.LPWStr)] string pszDir);
/// <summary>Retrieves the command-line arguments associated with a Shell link object</summary>
void GetArguments([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszArgs, int cchMaxPath);
/// <summary>Sets the command-line arguments for a Shell link object</summary>
void SetArguments([MarshalAs(UnmanagedType.LPWStr)] string pszArgs);
/// <summary>Retrieves the hot key for a Shell link object</summary>
void GetHotkey(out short pwHotkey);
/// <summary>Sets a hot key for a Shell link object</summary>
void SetHotkey(short wHotkey);
/// <summary>Retrieves the show command for a Shell link object</summary>
void GetShowCmd(out int piShowCmd);
/// <summary>Sets the show command for a Shell link object. The show command sets the initial show state of the window.</summary>
void SetShowCmd(int iShowCmd);
/// <summary>Retrieves the location (path and index) of the icon for a Shell link object</summary>
void GetIconLocation([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszIconPath,
int cchIconPath, out int piIcon);
/// <summary>Sets the location (path and index) of the icon for a Shell link object</summary>
void SetIconLocation([MarshalAs(UnmanagedType.LPWStr)] string pszIconPath, int iIcon);
/// <summary>Sets the relative path to the Shell link object</summary>
void SetRelativePath([MarshalAs(UnmanagedType.LPWStr)] string pszPathRel, int dwReserved);
/// <summary>Attempts to find the target of a Shell link, even if it has been moved or renamed</summary>
void Resolve(IntPtr hwnd, SLR_FLAGS fFlags);
/// <summary>Sets the path and file name of a Shell link object</summary>
void SetPath([MarshalAs(UnmanagedType.LPWStr)] string pszFile);
}
[ComImport, Guid("0000010c-0000-0000-c000-000000000046"),
InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IPersist
{
[PreserveSig]
void GetClassID(out Guid pClassID);
}
[ComImport, Guid("0000010b-0000-0000-C000-000000000046"),
InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface IPersistFile : IPersist
{
new void GetClassID(out Guid pClassID);
[PreserveSig]
int IsDirty();
[PreserveSig]
void Load([In, MarshalAs(UnmanagedType.LPWStr)]
string pszFileName, uint dwMode);
[PreserveSig]
void Save([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName,
[In, MarshalAs(UnmanagedType.Bool)] bool remember);
[PreserveSig]
void SaveCompleted([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName);
[PreserveSig]
void GetCurFile([In, MarshalAs(UnmanagedType.LPWStr)] string ppszFileName);
}
const uint STGM_READ = 0;
const int MAX_PATH = 260;
// CLSID_ShellLink from ShlGuid.h
[
ComImport(),
Guid("00021401-0000-0000-C000-000000000046")
]
public class ShellLink
{
}
#endregion
public static string ResolveShortcut(string filename)
{
ShellLink link = new ShellLink();
((IPersistFile)link).Load(filename, STGM_READ);
// TODO: if I can get hold of the hwnd call resolve first. This handles moved and renamed files.
// ((IShellLinkW)link).Resolve(hwnd, 0)
StringBuilder sb = new StringBuilder(MAX_PATH);
WIN32_FIND_DATAW data = new WIN32_FIND_DATAW();
((IShellLinkW)link).GetPath(sb, sb.Capacity, out data, 0);
return sb.ToString();
}
public static bool IsShortcut(string filename)
{
return Path.GetExtension(filename).EndsWith("lnk", StringComparison.OrdinalIgnoreCase);
}
}
}