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# Copyright 2020 The GNOME Music developers
#
# GNOME Music is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# GNOME Music is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with GNOME Music; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# The GNOME Music authors hereby grant permission for non-GPL compatible
# GStreamer plugins to be used and distributed together with GStreamer
# and GNOME Music. This permission is above and beyond the permissions
# granted by the GPL license by which GNOME Music is covered. If you
# modify this code, you may extend this exception to your version of the
# code, but you are not obligated to do so. If you do not wish to do so,
# delete this exception statement from your version.
import gi
gi.require_versions({"MediaArt": "2.0", "Soup": "3.0"})
from gi.repository import Gio, GLib, GObject, MediaArt, Soup, GdkPixbuf
from gnomemusic.musiclogger import MusicLogger
from gnomemusic.utils import CoreObjectType
class StoreArt(GObject.Object):
"""Stores Art in the MediaArt cache.
"""
__gsignals__ = {
"finished": (GObject.SignalFlags.RUN_FIRST, None, ())
}
def __init__(self):
"""Initialize StoreArtistArt
:param coreobject: The CoreArtist or CoreAlbum to store art for
:param string uri: The art uri
"""
super().__init__()
self._coreobject = None
self._file = None
self._log = MusicLogger()
self._soup_session = Soup.Session.new()
def start(self, coreobject, uri, coreobjecttype):
self._coreobject = coreobject
if (uri is None
or uri == ""):
self.emit("finished")
return
if coreobjecttype == CoreObjectType.ARTIST:
success, self._file = MediaArt.get_file(
self._coreobject.props.artist, None, "artist")
elif coreobjecttype == CoreObjectType.ALBUM:
success, self._file = MediaArt.get_file(
self._coreobject.props.artist, self._coreobject.props.title,
"album")
elif coreobjecttype == CoreObjectType.SONG:
success, self._file = MediaArt.get_file(
self._coreobject.props.artist, self._coreobject.props.album,
"album")
else:
success = False
if not success:
self.emit("finished")
return
cache_dir = GLib.build_filenamev(
[GLib.get_user_cache_dir(), "media-art"])
cache_dir_file = Gio.File.new_for_path(cache_dir)
cache_dir_file.query_info_async(
Gio.FILE_ATTRIBUTE_ACCESS_CAN_READ, Gio.FileQueryInfoFlags.NONE,
GLib.PRIORITY_DEFAULT_IDLE, None, self._cache_dir_info_read, uri)
def _cache_dir_info_read(self, cache_dir_file, res, uri):
try:
cache_dir_file.query_info_finish(res)
except GLib.Error:
# directory does not exist yet
try:
cache_dir_file.make_directory(None)
except GLib.Error as error:
self._log.warning(
"Error: {}, {}".format(error.domain, error.message))
self.emit("finished")
return
msg = Soup.Message.new("GET", uri)
self._soup_session.send_and_read_async(
msg, GLib.PRIORITY_DEFAULT, None, self._read_callback)
def _read_callback(
self, session: Soup.Session, result: Gio.AsyncResult) -> None:
try:
bytes = session.send_and_read_finish(result)
except GLib.Error as error:
self._log.debug(
f"Failed to get remote art: {error.domain}, {error.message}")
self.emit("finished")
istream = Gio.MemoryInputStream.new_from_bytes(bytes)
GdkPixbuf.Pixbuf.new_from_stream_async(
istream, None, self._pixbuf_from_stream_finished)
def _pixbuf_from_stream_finished(
self, stream: Gio.MemoryInputStream,
result: Gio.AsyncResult) -> None:
try:
pixbuf = GdkPixbuf.Pixbuf.new_from_stream_finish(result)
except GLib.Error as error:
self._log.warning(f"Error: {error.domain}, {error.message}")
self.emit("finished")
else:
self._file.create_async(
Gio.FileCreateFlags.NONE, GLib.PRIORITY_DEFAULT_IDLE, None,
self._output_stream_created, pixbuf)
finally:
stream.close_async(
GLib.PRIORITY_DEFAULT_IDLE, None, self._stream_closed)
def _output_stream_created(
self, stream: Gio.FileOutputStream, result: Gio.AsyncResult,
pixbuf: GdkPixbuf.Pixbuf) -> None:
try:
output_stream = stream.create_finish(result)
except GLib.Error as error:
# File already exists.
self._log.info(f"Error: {error.domain}, {error.message}")
self.emit("finished")
else:
pixbuf.save_to_streamv_async(
output_stream, "jpeg", None, None, None,
self._output_stream_saved, output_stream)
def _output_stream_saved(
self, pixbuf: GdkPixbuf.Pixbuf, result: Gio.AsyncResult,
output_stream: Gio.FileOutputStream) -> None:
try:
pixbuf.save_to_stream_finish(result)
except GLib.Error as error:
self._log.warning(f"Error: {error.domain}, {error.message}")
else:
self._coreobject.props.thumbnail = self._file.get_uri()
finally:
self.emit("finished")
output_stream.close_async(
GLib.PRIORITY_DEFAULT_IDLE, None, self._stream_closed)
def _stream_closed(
self, stream: Gio.OutputStream, result: Gio.AsyncResult) -> None:
try:
stream.close_finish(result)
except GLib.Error as error:
self._log.warning(f"Error: {error.domain}, {error.message}")
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