/// <summary>
/// Gets or value that determines the <see cref="PerceivedType"/>PerceivedType of the file.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <returns><see cref="PerceivedTypes"/> that specifies Perceived Type of extension.</returns>
protected PerceivedTypes GetPerceivedType(FileAssociationInfo file)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
object val = registryWrapper.Read(file.extension, "PerceivedType");
PerceivedTypes actualType = PerceivedTypes.None;
if (val == null)
{
return(actualType);
}
try
{
actualType = (PerceivedTypes)Enum.Parse(typeof(PerceivedTypes), val.ToString(), true);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
return(actualType);
}
/// <summary>
/// Creates actual extension association key in registry for the specified extension and supplied attributes.
/// </summary>
/// <param name="progId">Name of expected handling program.</param>
/// <param name="perceivedType"><see cref="PerceivedTypes"/>PerceivedType of file type.</param>
/// <param name="contentType">MIME type of file type.</param>
/// <param name="openwithList"></param>
/// <returns>FileAssociationInfo instance referring to specified extension.</returns>
public FileAssociationInfo Create(string progId, PerceivedTypes perceivedType, string contentType, string[] openwithList)
{
FileAssociationInfo fai = new FileAssociationInfo(extension);
if (fai.Exists)
{
fai.Delete();
}
fai.Create();
fai.ProgID = progId;
if (perceivedType != PerceivedTypes.None)
{
fai.PerceivedType = perceivedType;
}
if (contentType != string.Empty)
{
fai.ContentType = contentType;
}
if (openwithList != null)
{
fai.OpenWithList = openwithList;
}
return(fai);
}
/// <summary>
/// Sets array of containing program file names which should be displayed in the Open With List.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <param name="programList">Program file names</param>
protected void SetOpenWithList(FileAssociationInfo file, string[] programList)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
RegistryKey root = Registry.ClassesRoot;
RegistryKey key = root.OpenSubKey(file.extension, true);
RegistryKey tmpkey = key.OpenSubKey("OpenWithList", true);
if (tmpkey != null)
{
key.DeleteSubKeyTree("OpenWithList");
}
key = key.CreateSubKey("OpenWithList");
foreach (string s in programList)
{
key.CreateSubKey(s);
}
ShellNotification.NotifyOfChange();
}
/// <summary>
/// Deletes actual file extension entry in registry.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> instance that contains specifics on extension to be deleted.</param>
protected void Delete(FileAssociationInfo file)
{
if (!file.Exists)
{
throw new Exception("Key not found.");
}
RegistryKey root = Registry.ClassesRoot;
root.DeleteSubKeyTree(file.extension);
}
/// <summary>
/// Creates actual file extension entry in registry.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> instance that contains specifics on extension to be created.</param>
protected void Create(FileAssociationInfo file)
{
if (file.Exists)
{
file.Delete();
}
RegistryKey root = Registry.ClassesRoot;
root.CreateSubKey(file.extension);
}
/// <summary>
/// Set a value that indicates the name of the associated application with the behavior to handle this extension.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <param name="progId">Associated Program ID of handling program.</param>
protected void SetProgID(FileAssociationInfo file, string progId)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
registryWrapper.Write(file.extension, string.Empty, progId);
ShellNotification.NotifyOfChange();
}
/// <summary>
/// Sets a value that determines the MIME type of the file.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <param name="type">MIME content type of extension.</param>
protected void SetContentType(FileAssociationInfo file, string type)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
registryWrapper.Write(file.extension, "Content Type", type);
ShellNotification.NotifyOfChange();
}
/// <summary>
/// Sets a value that determines the <see cref="PerceivedType"/>PerceivedType of the file.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <param name="type"><see cref="PerceivedTypes"/> to be set that specifies Perceived Type of extension.</param>
protected void SetPerceivedType(FileAssociationInfo file, PerceivedTypes type)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
registryWrapper.Write(file.extension, "PerceivedType", type.ToString());
ShellNotification.NotifyOfChange();
}
/// <summary>
/// Associates an already existing program id with a list of extensions.
/// </summary>
/// <param name="progId">The program id to associate extensions with.</param>
/// <param name="extensions">String array of extensions to associate with program id.</param>
public void Associate(string progId, params string[] extensions)
{
foreach (string s in extensions)
{
FileAssociationInfo fai = new FileAssociationInfo(s);
if (!fai.Exists)
{
fai.Create(progId);
}
fai.ProgID = progId;
}
}
/// <summary>
/// Gets a value that indicates the name of the associated application with the behavior to handle this extension.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <returns>Associated Program ID of handling program.</returns>
protected string GetProgID(FileAssociationInfo file)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
object val = registryWrapper.Read(file.extension, string.Empty);
if (val == null)
{
return(string.Empty);
}
return(val.ToString());
}
/// <summary>
/// Sets a value that indicates the filter component that is used to search for text within documents of this type.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <param name="persistentHandler">Guid of filter component.</param>
protected void SetPersistentHandler(FileAssociationInfo file, Guid persistentHandler)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
if (persistentHandler == Guid.Empty)
{
return;
}
this.registryWrapper.Write(file.extension + "\\" + PersistentHandler, string.Empty, persistentHandler);
ShellNotification.NotifyOfChange();
}
/// <summary>
/// Verifies that given extension exists and is associated with given program id
/// </summary>
/// <param name="extension">Extension to be checked for.</param>
/// <param name="progId">progId to be checked for.</param>
/// <returns>True if association exists, false if it does not.</returns>
public bool IsValid(string extension, string progId)
{
FileAssociationInfo fai = new FileAssociationInfo(extension);
if (!fai.Exists)
{
return(false);
}
if (progId != fai.ProgID)
{
return(false);
}
return(true);
}
/// <summary>
/// Determines of the list of extensions are associated with the specified program id.
/// </summary>
/// <param name="progId">Program id to check against.</param>
/// <param name="extensions">String array of extensions to check against the program id.</param>
/// <returns>String array of extensions that were not associated with the program id.</returns>
public string[] CheckAssociation(string progId, params string[] extensions)
{
List <string> notAssociated = new List <string>();
foreach (string s in extensions)
{
FileAssociationInfo fai = new FileAssociationInfo(s);
if (!fai.Exists || fai.ProgID != progId)
{
notAssociated.Add(s);
}
}
return(notAssociated.ToArray());
}
/// <summary>
/// Gets a value that indicates the filter component that is used to search for text within documents of this type.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <returns>Guid of filter component.</returns>
protected Guid GetPersistentHandler(FileAssociationInfo file)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
object val = registryWrapper.Read(file.extension + "\\PersistentHandler", string.Empty);
if (val == null)
{
return(new Guid());
}
else
{
return(new Guid(val.ToString()));
}
}
/// <summary>
/// Gets array of containing program file names which should be displayed in the Open With List.
/// </summary>
/// <param name="file"><see cref="FileAssociationInfo"/> that provides specifics of the extension to be changed.</param>
/// <returns>Program file names</returns>
protected string[] GetOpenWithList(FileAssociationInfo file)
{
if (!file.Exists)
{
throw new Exception("Extension does not exist");
}
RegistryKey root = Registry.ClassesRoot;
RegistryKey key = root.OpenSubKey(file.extension);
key = key.OpenSubKey("OpenWithList");
if (key == null)
{
return(new string[0]);
}
return(key.GetSubKeyNames());
}
/// <summary>
/// Associates a single executable with a list of extensions.
/// </summary>
/// <param name="progId">Name of program id</param>
/// <param name="executablePath">Path to executable to start including arguments.</param>
/// <param name="extensions">String array of extensions to associate with program id.</param>
/// <example>progId = "MyTextFile"
/// executablePath = "notepad.exe %1"
/// extensions = ".txt", ".text"</example>
public void Associate(string progId, string executablePath, params string[] extensions)
{
foreach (string s in extensions)
{
FileAssociationInfo fai = new FileAssociationInfo(s);
if (!fai.Exists)
{
fai.Create(progId);
}
fai.ProgID = progId;
}
ProgramAssociationInfo pai = new ProgramAssociationInfo(progId);
if (!pai.Exists)
{
pai.Create();
}
pai.AddVerb(new ProgramVerb("open", executablePath));
}