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from PyQt4 import QtGui,QtCore
import re
from thread import start_new_thread
from traceback import print_exc
from misc import *
from clSettings import settings,mpdSettings
from clMonty import monty
from clPlugin import *
class ResetEvent(QtCore.QEvent):
song=None
def __init__(self, song=None):
QtCore.QEvent.__init__(self,QtCore.QEvent.User)
self.song=song
class AddHtmlEvent(QtCore.QEvent):
html=None
def __init__(self,html):
QtCore.QEvent.__init__(self,QtCore.QEvent.User)
self.html=html
TABS_DEFAULT_ENGINE='http://www.google.com/search?q=tabs|chords+"$artist"+"$title"'
TABS_DEFAULT_SITES='azchords.com <pre>(.*?)</pre>\n'\
'fretplay.com <P CLASS="tabs">(.*?)</P>\n'\
'guitaretab.com <pre style="COLOR: #000000; FONT-SIZE: 11px;">(.*)?</pre>'\
class wgTabs(QtGui.QWidget):
" contains the tabs"
txt=None
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.txt=QtGui.QTextEdit(parent)
self.txt.setReadOnly(True)
layout=QtGui.QVBoxLayout()
layout.addWidget(self.txt)
self.setLayout(layout)
monty.addListener('onSongChange', self.onSongChange)
monty.addListener('onReady', self.onReady)
monty.addListener('onDisconnect', self.onDisconnect)
def onSongChange(self, params):
song=monty.getCurrentSong()
try:
song._data['file']
except:
self.resetTxt()
return
self.resetTxt(song)
start_new_thread(self.fetchTabs, (song,))
def customEvent(self, event):
if isinstance(event,ResetEvent):
self.resetTxt(event.song)
elif isinstance(event,AddHtmlEvent):
self.txt.insertHtml(event.html)
def onReady(self, params):
self.onSongChange(None)
_mutex=QtCore.QMutex()
_fetchCnt=0
def fetchTabs(self, song):
# only allow 1 instance to look tabs!
self._mutex.lock()
if self._fetchCnt:
self._mutex.unlock()
return
self._fetchCnt=1
self._mutex.unlock()
QtCore.QCoreApplication.postEvent(self, ResetEvent(song))
# save the data to file!
save_dir=settings.get('tabs.dir', '/holy_grail')
fInfo=QtCore.QFileInfo(save_dir)
if fInfo.isDir():
tabsFName='%s/%s - %s.txt'%(save_dir,song.getArtist(),song.getTitle())
else:
tabsFName=None
# does the file exist? if yes, read that one!
try:
# we have it: load, and return!
file=open(tabsFName, 'r')
QtCore.QCoreApplication.postEvent(self, AddHtmlEvent(file.read()))
file.close()
self._fetchCnt=0
return
except:
pass
# fetch from inet
QtCore.QCoreApplication.postEvent(self, AddHtmlEvent('<i>Searching tabs ...</i>'))
lines=settings.get('tabs.sites', TABS_DEFAULT_SITES).split('\n')
sites={}
for line in lines:
if line.strip():
sites[line[0:line.find('\t')]]=line[line.find('\t'):].strip()
# construct URL to search!
SE=settings.get('tabs.engine', TABS_DEFAULT_ENGINE)
try:
ret=fetch(SE, sites, song, {})
if ret:
txt='<pre>%s<br /><br /><a href="%s">%s</a></pre>'%(ret[0],ret[1],ret[1])
# save for later use!
if tabsFName:
# we can't save if the path isn't correct
try:
file=open(tabsFName, 'w')
file.write(ret[0])
file.close()
except:
pass
else:
txt="No tabs found :'("
QtCore.QCoreApplication.postEvent(self, ResetEvent(song))
QtCore.QCoreApplication.postEvent(self, AddHtmlEvent(txt))
except:
print_exc()
QtCore.QCoreApplication.postEvent(self, ResetEvent(song))
QtCore.QCoreApplication.postEvent(self, AddHtmlEvent('Woops, site unavailable!'\
'<br />You have an internet connection?'))
self._fetchCnt=0
def onDisconnect(self, params):
self.resetTxt()
def resetTxt(self, song=None):
self.txt.clear()
if song:
self.txt.insertHtml('<b>%s</b>\n<br /><u>%s</u><br />'\
'<br />\n\n'%(song.getTitle(), song.getArtist()))
class pluginTabs(Plugin):
o=None
def __init__(self, winMain):
Plugin.__init__(self, winMain, 'Tabs')
def _load(self):
self.o=wgTabs(None)
def getInfo(self):
return "Show (and fetch) the tabs of the currently playing song."
def _getDockWidget(self):
return self._createDock(self.o)
def _getSettings(self):
sites=QtGui.QTextEdit()
sites.insertPlainText(settings.get('tabs.sites', TABS_DEFAULT_SITES))
return [
['tabs.engine', 'Search engine', 'The URL that is used to search. $artist, $title and $album are replaced in the URL.', QtGui.QLineEdit(settings.get('tabs.engine', TABS_DEFAULT_ENGINE))],
['tabs.sites', 'Sites & regexes', 'This field contains all sites, together with the regex needed to fetch the tabs.\nEvery line must look like this: $domain $regex-start(.*?)$regex-end\n$domain is the domain of the tabs website, $regex-start is the regex indicating the start of the tabs, $regex-end indicates the end. E.g. footabs.org <tabs>(.*?)</tabs>', sites],
['tabs.dir', 'Tabs directory', 'Directory where tabs should be stored and retrieved.', QtGui.QLineEdit(settings.get('tabs.dir'))],
]
def afterSaveSettings(self):
self.o.onSongChange(None)
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