/// <summary>
/// Helper method to check if the uri has an extension that is in the list
/// of this handler's supported extensions.
/// </summary>
/// <param name="uri">The uri to check</param>
/// <returns><c>true</c> if the extension is supported, <c>false</c>otherwise.</returns>
protected bool CheckExtension(Uri uri)
{
return Extensions.Contains(uri.GetExtension().ToLower());
}
public void LoadOrImport(Uri uri)
{
if (uri == null)
throw new ArgumentNullException("uri");
uri = DataManager.Songs.TryRewriteUri(uri);
string ext = uri.GetExtension();
Song song = null;
try
{
if (ext == ".ppl")
{
song = new Song(uri, new PowerpraiseSongReader());
}
else if (ext == ".sng")
{
song = new Song(uri, new SongBeamerSongReader());
}
else if (ext == ".chopro" || ext == ".cho" || ext == ".pro")
{
song = new Song(uri, new ChordProSongReader());
}
else if (ext == ".usr")
{
song = new Song(uri, new CcliUsrSongReader());
}
else if (ext == ".txt")
{
song = new Song(uri, new CcliTxtSongReader());
}
else if (ext == ".xml")
{
song = new Song(uri, new OpenLyricsSongReader());
}
else if (ext == "") // OpenSong songs have no file extension
{
song = new Song(uri, new OpenSongSongReader());
}
else
{
throw new NotSupportedException("Song format is not supported.");
}
}
catch(Exception e)
{
Controller.ShowEditorWindow();
MessageBox.Show(String.Format(Resource.eMsgCouldNotOpenSong, uri.FormatLocal(), e.Message), Resource.dialogError, MessageBoxButton.OK, MessageBoxImage.Error);
}
if (song != null)
{
Load(song);
}
}
protected virtual ICollection<ContentType> GetContentTypeByUrl(Uri url, ContentKind requiredKind)
{
var ext = url.GetExtension();
if (null == ext)
return null;
return FilterByKind(ExtensionLookup[ext], requiredKind).ToArray();
}
public static bool IsValidImageUri(Uri uri)
{
var ext = uri.GetExtension().ToLower();
return ImageExtensions.Contains(ext);
}