#!/usr/bin/env python
# -*- coding: Latin-1 -*-
import user
import os
from xml.dom import minidom
# the current.xml file
PLAYLISTFILE = "%s/.trinity/share/apps/amarok/current.xml"%(user.home)
# the fields to be shown via http
FIELDS = ("Artist", "Title", "Album", "Track", "Length", "Genre", "Score" )
class Track(object):
"""Class that holds the information of one track in the current playlist"""
__Q_SLOTS__ = FIELDS
def __init__(self, **kwargs):
for key,value in kwargs.iteritems():
setattr(self, key, value)
def toRow(self, style=''):
"""Returns the a html-table-row with member values of this class"""
tmp = ['| %s | '%(i) for i in [getattr(self,f) for f in \
self.__Q_SLOTS__ ]]
tr_style = ''
if style:
tr_style='class="%s"'%(style)
return '%s
'%(tr_style, ''.join(tmp))
class Playlist:
"""The Playlist class represents the Playlist as one object. It holds all
needed information and does most of the work"""
def __init__(self):
"""The Constructor takes no arguments."""
self.sync()
self.tracks = []
self.mtime = self._getMtime()
self.firstRun = 1
self.code=""" \n
AmaroK playlist\n
\n
%s
\n
\n
"""
self.encoding = "UTF-8"
self.fullPage = ""
self._buildDoc()
def toHtml(self):
"""Returns a html representation of the whole Playlist"""
if self.firstRun:
self._setFullPage()
self.firstRun = 0
else:
newmtime = self._getMtime()
if newmtime !=self.mtime:
self._buildDoc()
self._setFullPage()
self.mtime = newmtime
return self.fullPage
def _setFullPage(self):
self.fullPage = self.code%(os.environ['LOGNAME'],(self._createTable()).encode(self.encoding,'replace'))
def _getMtime(self):
"""gets the mtime from the current.xml file, to check if the current.xml
has been modified or not"""
return os.stat(PLAYLISTFILE)[-2]
def _buildDoc(self):
"""Build the DOM-doc and calls the _extractTracks-Method"""
self.doc = minidom.parse(PLAYLISTFILE)
self._extractTracks()
def _extractTracks(self):
"""extracts all "item"-elements from the doc and creates an Track-object
to store the associated information"""
append = self.tracks.append
for item in self.doc.getElementsByTagName("item"):
curTrack = Track()
for elem in FIELDS:
try:
value = item.getElementsByTagName(elem)[0].firstChild.nodeValue
except:
value = ' '
setattr(curTrack, elem, value)
append(curTrack)
def _createTable(self):
"""Returns the HTML-Table"""
tbl = """"""
rows = self._createRows()
thead = "".join(['%s | '%(i) for i in FIELDS])
return tbl %(thead,"".join(rows))
def _createRows(self):
"""Returns the table rows"""
retval = []
i = 1
for track in self.tracks:
style = 'tr_one'
if i %2 == 0:
style = 'tr_two'
retval.append(track.toRow(style=style))
i = i+1
return retval
def sync(self):
"""Saves the current Amarok-Playlist to the current.xml file. Calls
amarok via dcop"""
os.system("dcop amarok playlist saveCurrentPlaylist")