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#
# Copyright (C) 2008 jerous <jerous@gmail.com>
# Copyright (C) 2009 Anton Khirnov <wyskas@gmail.com>
#
# Nephilim 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 3 of the License, or
# (at your option) any later version.
#
# Nephilim 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 Nephilim. If not, see <http://www.gnu.org/licenses/>.
#
from PyQt4 import QtCore, QtGui, QtNetwork
from PyQt4.QtCore import pyqtSignal as Signal
import socket
import logging
import os
import re
from htmlentitydefs import name2codepoint as n2cp
socket.setdefaulttimeout(8)
appIcon = ':icons/nephilim_small.png'
APPNAME = 'nephilim'
ORGNAME = 'nephilim'
# custom mimetypes used for drag&drop
MIMETYPES = {'songs' : 'application/x-mpd-songlist', 'plistsongs' : 'application/x-mpd-playlistsonglist'}
def sec2min(secs):
"""Converts seconds to min:sec."""
min=int(secs/60)
sec=secs%60
if sec<10:sec='0'+str(sec)
return str(min)+':'+str(sec)
class Button(QtGui.QPushButton):
iconSize=32
"""A simple Button class which calls $onClick when clicked."""
def __init__(self, caption, onClick=None, iconPath=None, iconOnly=False, parent=None):
QtGui.QPushButton.__init__(self, parent)
if onClick:
self.clicked.connect(onClick)
if iconPath:
self.changeIcon(iconPath)
if not(iconPath and iconOnly):
QtGui.QPushButton.setText(self, caption)
self.setToolTip(caption)
def setText(self, caption):
self.setToolTip(caption)
if self.icon()==None:
self.setText(caption)
def changeIcon(self, iconPath):
icon=QtGui.QIcon()
icon.addFile(iconPath, QtCore.QSize(self.iconSize, self.iconSize))
self.setIcon(icon)
def expand_tags(string, expanders):
for expander in expanders:
string = expander.expand_tags(string)
#remove unexpanded tags
return re.sub('\$\{.*\}', '', string)
def generate_metadata_path(song, dir_tag, file_tag):
"""Generate dirname and (db files only) full file path for reading/writing metadata files
(cover, lyrics) from $tags in dir/filename."""
if QtCore.QDir.isAbsolutePath(song['file']):
dirname = os.path.dirname(song['file'])
filepath = ''
elif '://' in song['file']: # we are streaming
dirname = ''
filepath = ''
else:
dirname = expand_tags(dir_tag, (QtGui.QApplication.instance(), song))
filepath = '%s/%s'%(dirname, expand_tags(file_tag, (QtGui.QApplication.instance(), song)).replace('/', '_'))
return dirname, filepath
def substitute_entity(match):
ent = match.group(3)
if match.group(1) == "#":
if match.group(2) == '':
return unichr(int(ent))
elif match.group(2) == 'x':
return unichr(int('0x'+ent, 16))
else:
cp = n2cp.get(ent)
if cp:
return unichr(cp)
else:
return match.group()
def decode_htmlentities(string):
entity_re = re.compile(r'&(#?)(x?)(\w+);')
return entity_re.subn(substitute_entity, string)[0]
class MetadataFetcher(QtCore.QObject):
"""A basic class for metadata fetchers. Provides a fetch(song) function,
emits a finished(song, metadata) signal when done; lyrics is either a Python
unicode string or None if not found."""
#public, read-only
logger = None
name = ''
#private
nam = None # NetworkAccessManager
rep = None # current NetworkReply.
song = None # current song
# SIGNALS
finished = Signal(['song', 'metadata'])
#### private ####
def __init__(self, plugin):
QtCore.QObject.__init__(self, plugin)
self.nam = QtNetwork.QNetworkAccessManager()
self.logger = plugin.logger
def fetch2(self, song, url):
"""A private convenience function to initiate fetch process."""
# abort any existing connections
self.abort()
self.song = song
self.logger.info('Searching %s: %s.'%(self. name, url.toString()))
self.rep = self.nam.get(QtNetwork.QNetworkRequest(url))
self.rep.error.connect(self.handle_error)
def finish(self, metadata = None):
"""A private convenience function to clean up and emit finished().
Feel free to reimplement/not use it."""
self.rep = None
self.finished.emit(self.song, metadata)
self.song = None
def handle_error(self):
"""Print the error and abort."""
self.logger.error(self.rep.errorString())
self.abort()
self.finish()
#### public ####
def fetch(self, song):
"""Reimplement this in subclasses."""
pass
def abort(self):
"""Abort all downloads currently in progress."""
if self.rep:
self.rep.blockSignals(True)
self.rep.abort()
self.rep = None
class SongsMimeData(QtCore.QMimeData):
# private
__songs = None
__plistsongs = None
def set_songs(self, songs):
self.__songs = songs
def songs(self):
return self.__songs
def set_plistsongs(self, songs):
self.__plistsongs = songs
def plistsongs(self):
return self.__plistsongs
def formats(self):
types = QtCore.QMimeData.formats(self)
if self.__songs:
types += MIMETYPES['songs']
if self.__plistsongs:
types += MIMETYPES['plistsongs']
return types
def hasFormat(self, format):
if format == MIMETYPES['songs'] and self.__songs:
return True
elif format == MIMETYPES['plistsongs'] and self.__plistsongs:
return True
return QtCore.QMimeData.hasFormat(self, format)
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