Python collection.Playlist类代码示例

    def setUp(self):
        # Testing locally is VERY dangerous without this...
        self.assertTrue(_TEMP_DIR in PLAYLISTS or os.name == "nt",
                        msg="Failing, don't want to delete %s" % PLAYLISTS)
        try:
            shutil.rmtree(PLAYLISTS)
        except OSError:
            pass

        mkdir(PLAYLISTS)

        self.lib = quodlibet.browsers.playlists.library = SongLibrary()
        self.lib.librarian = SongLibrarian()
        all_songs = SONGS + [self.ANOTHER_SONG]
        for af in all_songs:
            af.sanitize()
        self.lib.add(all_songs)

        self.big = pl = Playlist.new(PLAYLISTS, "Big", self.lib)
        pl.extend(SONGS)
        pl.write()

        self.small = pl = Playlist.new(PLAYLISTS, "Small", self.lib)
        pl.extend([self.ANOTHER_SONG])
        pl.write()

        PlaylistsBrowser.init(self.lib)

        self.bar = PlaylistsBrowser(self.lib)
        self.bar.connect('songs-selected', self._expected)
        self.bar._select_playlist(self.bar.playlists()[0])
        self.expected = None

 def test_listlike(s):
     pl = Playlist(s.temp, "playlist")
     pl.extend(NUMERIC_SONGS)
     s.failUnlessEqual(NUMERIC_SONGS[0], pl[0])
     s.failUnlessEqual(NUMERIC_SONGS[1:2], pl[1:2])
     s.failUnless(NUMERIC_SONGS[1] in pl)
     pl.delete()

    def setUp(self):
        try:
            shutil.rmtree(PLAYLISTS)
        except OSError:
            pass

        mkdir(PLAYLISTS)

        self.lib = quodlibet.browsers.playlists.library = SongLibrary()
        self.lib.librarian = SongLibrarian()
        all_songs = SONGS + [self.ANOTHER_SONG]
        for af in all_songs:
            af.sanitize()
        self.lib.add(all_songs)

        pl = Playlist.new(PLAYLISTS, "Big", self.lib)
        pl.extend(SONGS)
        pl.write()

        pl = Playlist.new(PLAYLISTS, "Small", self.lib)
        pl.extend([self.ANOTHER_SONG])
        pl.write()

        PlaylistsBrowser.init(self.lib)

        self.bar = PlaylistsBrowser(self.lib)
        self.bar.connect('songs-selected', self._expected)
        self.bar._select_playlist(self.bar.playlists()[0])
        self.expected = None

 def test_duplicates(self):
     pl = Playlist(self.temp, "playlist")
     pl.extend(self.TWO_SONGS)
     pl.extend(self.TWO_SONGS)
     self.failUnlessEqual(len(pl), 4)
     self.failUnless(pl.has_duplicates,
                     ("Playlist has un-detected duplicates: %s "
                      % "\n".join([str(s) for s in pl._list])))

 def test_make_dup(self):
     p1 = Playlist.new(self.temp, "Does not exist")
     p2 = Playlist.new(self.temp, "Does not exist")
     self.failUnlessEqual(p1.name, "Does not exist")
     self.failUnless(p2.name.startswith("Does not exist"))
     self.failIfEqual(p1.name, p2.name)
     p1.delete()
     p2.delete()

 def test_playlists_tag(self):
     # Arguably belongs in _audio
     songs = NUMERIC_SONGS
     pl_name = "playlist 123!"
     pl = Playlist(self.temp, pl_name)
     pl.extend(songs)
     for song in songs:
         self.assertEquals(pl_name, song("~playlists"))
     pl.delete()

 def test_playlists_featuring(s):
     with s.wrap("playlist") as pl:
         pl.extend(NUMERIC_SONGS)
         playlists = Playlist.playlists_featuring(NUMERIC_SONGS[0])
         s.failUnlessEqual(set(playlists), {pl})
         # Now add a second one, check that instance tracking works
         with s.wrap("playlist2") as pl2:
             pl2.append(NUMERIC_SONGS[0])
             playlists = Playlist.playlists_featuring(NUMERIC_SONGS[0])
             s.failUnlessEqual(set(playlists), {pl, pl2})

    def test_internal_tags(s):
        pl = Playlist(s.temp, "playlist")
        pl.extend(s.TWO_SONGS)

        s.failIfEqual(pl.comma("~long-length"), "")
        s.failIfEqual(pl.comma("~tracks"), "")
        s.failIfEqual(pl.comma("~discs"), "")
        s.failUnlessEqual(pl.comma("~foo"), "")

        s.failUnlessEqual(pl.comma(""), "")
        s.failUnlessEqual(pl.comma("~"), "")
        s.failUnlessEqual(pl.get("~#"), "")

 def setup():
     Playlist._remove_all()
     for i in xrange(NUM_PLAYLISTS):
         pls.append(Playlist(PLAYLISTS, "List %d" % (i+1)))
     for i in xrange(NUM_SONGS):
         a = ARTISTS[randint(0,2)]
         t = "Song %d" % i
         data = {"title": t, "artist":a, "~#tracknumber": i % 20,
                 "~filename": "%s.mp3" % t,
                 "~#filesize":randint(1000000,100000000)}
         song = Fakesong(data)
         library.append(song)
         if not (i % SONGS_TO_PLAYLIST_SIZE_RATIO):
             song["~included"] = "yes"
             for j in range(PLAYLISTS_PER_PLAYLISTED_SONG):
                 pls[(i+j) % NUM_PLAYLISTS].append(song)

def __parse_playlist(name, plfilename, files, library):
    playlist = Playlist.new(PLAYLISTS, name, library=library)
    songs = []
    win = WaitLoadWindow(None, len(files), _("Importing playlist.\n\n%(current)d/%(total)d songs added."))
    win.show()
    for i, filename in enumerate(files):
        try:
            uri = URI(filename)
        except ValueError:
            if os.name == "nt":
                filename = filename.decode("utf-8", "replace")
            # Plain filename.
            filename = os.path.realpath(os.path.join(os.path.dirname(plfilename), filename))
            if library and filename in library:
                songs.append(library[filename])
            else:
                songs.append(formats.MusicFile(filename))
        else:
            if uri.scheme == "file":
                # URI-encoded local filename.
                filename = os.path.realpath(os.path.join(os.path.dirname(plfilename), uri.filename))
                if library and filename in library:
                    songs.append(library[filename])
                else:
                    songs.append(formats.MusicFile(filename))
            else:
                # Who knows! Hand it off to GStreamer.
                songs.append(formats.remote.RemoteFile(uri))
        if win.step():
            break
    win.destroy()
    playlist.extend(filter(None, songs))
    return playlist

    def test_playlist_plugin(self):
        pl = Playlist("foo", library=app.librarian)
        pl.extend([AudioFile({"~filename": "/dev/null"})])
        self.called_pl = None
        self.called_songs = None

        def proxy(songs, playlist=None):
            self.called_pl = playlist
            self.called_songs = songs

        plugin = self.plugin()
        plugin._handle_songs = proxy
        # Test that as a Playlist plugin it delegates correctly
        plugin.plugin_playlist(pl)
        self.failUnless(self.called_songs)
        self.assertEqual(self.called_pl, pl)
        self.assertEqual(self.called_songs, pl.songs)

    def test_updating_aggregates_remove_songs(s):
        pl = Playlist(s.temp, "playlist")
        pl.extend(NUMERIC_SONGS)
        s.failUnless(pl.get("~#length"))

        pl.remove_songs(NUMERIC_SONGS)
        s.failIf(pl.get("~#length"))

 def _on_new_playlist_activate(self, item, songs):
     parent = get_menu_item_top_parent(item)
     title = Playlist.suggested_name_for(songs)
     title = GetPlaylistName(qltk.get_top_parent(parent)).run(title)
     if title is None:
         return
     playlist = FileBackedPlaylist.new(PLAYLISTS, title)
     playlist.extend(songs)
     PlaylistsBrowser.changed(playlist)

 def _on_new_playlist_activate(self, item, songs):
     parent = get_menu_item_top_parent(item)
     title = Playlist.suggested_name_for(songs)
     title = self._get_new_name(parent, title)
     if title is None:
         return
     playlist = FileBackedPlaylist.new(PLAYLISTS, title,
                                       library=self.librarian)
     playlist.extend(songs)
     self._emit_new(playlist)

 def __drag_data_received(self, view, ctx, x, y, sel, tid, etime, library):
     # TreeModelSort doesn't support GtkTreeDragDestDrop.
     view.emit_stop_by_name('drag-data-received')
     model = view.get_model()
     if tid == DND_QL:
         filenames = qltk.selection_get_filenames(sel)
         songs = filter(None, map(library.get, filenames))
         if not songs:
             Gtk.drag_finish(ctx, False, False, etime)
             return
         try:
             path, pos = view.get_dest_row_at_pos(x, y)
         except TypeError:
             playlist = Playlist.fromsongs(PLAYLISTS, songs, library)
             GLib.idle_add(self.__select_playlist, playlist)
         else:
             playlist = model[path][0]
             playlist.extend(songs)
         PlaylistsBrowser.changed(playlist)
         Gtk.drag_finish(ctx, True, False, etime)
     else:
         if tid == DND_URI_LIST:
             uri = sel.get_uris()[0]
             name = os.path.basename(uri)
         elif tid == DND_MOZ_URL:
             data = sel.get_data()
             uri, name = data.decode('utf16', 'replace').split('\n')
         else:
             Gtk.drag_finish(ctx, False, False, etime)
             return
         name = name or os.path.basename(uri) or _("New Playlist")
         uri = uri.encode('utf-8')
         try:
             sock = urllib.urlopen(uri)
             f = NamedTemporaryFile()
             f.write(sock.read())
             f.flush()
             if uri.lower().endswith('.pls'):
                 playlist = parse_pls(f.name, library=library)
             elif uri.lower().endswith('.m3u'):
                 playlist = parse_m3u(f.name, library=library)
             else:
                 raise IOError
             library.add_filename(playlist)
             if name:
                 playlist.rename(name)
             PlaylistsBrowser.changed(playlist)
             Gtk.drag_finish(ctx, True, False, etime)
         except IOError:
             Gtk.drag_finish(ctx, False, False, etime)
             qltk.ErrorMessage(
                 qltk.get_top_parent(self),
                 _("Unable to import playlist"),
                 _("Quod Libet can only import playlists in the M3U "
                   "and PLS formats.")).run()