gpodder/src/gpodder/gpodder.py

# -*- coding: UTF8 -*-

# Python module src/gpodder/gpodder.py
# Autogenerated from gpodder.glade

# Warning: Do not modify any context comment such as #--
# They are required to keep user's code

#
# gPodder (a media aggregator / podcast client)
# Copyright (C) 2005-2006 Thomas Perl <thp at perli.net>
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
# MA  02110-1301, USA.
#

import os
import gtk
import gobject
import sys

from threading import Event
from threading import Thread
from string import strip


from SimpleGladeApp import SimpleGladeApp
from SimpleGladeApp import bindtextdomain

from libpodcasts import podcastChannel
from libpodcasts import podcastItem

from libpodcasts import channelsToModel

from librssreader import rssReader
from libopmlwriter import opmlWriter
from libopmlreader import opmlReader
from libwget import downloadThread
from libwget import downloadStatusManager

from libgpodder import gPodderLib
from libgpodder import gPodderChannelReader
from libgpodder import gPodderChannelWriter

from liblocaldb import localDB

from libplayers import UserAppsReader

from libipodsync import gPodder_iPodSync
from libipodsync import ipod_supported

# for isDebugging:
import libgpodder

app_name = "gpodder"
app_version = "unknown" # will be set in main() call
app_authors = [
                'Thomas Perl <thp@perli.net>', '',
                _('Contributors / patch writers:'),
                'Peter Hoffmann <tosh@cs.tu-berlin.de>',
                'Adrien Beaucreux <informancer@web.de>',
                'Alain Tauch <contrib@maisondubonheur.com>', '',
                _('See the AUTHORS file for all contributors')
              ]
app_copyright = 'Copyright (c) 2005-2006 Thomas Perl'
app_website = 'http://perli.net/projekte/gpodder/'

glade_dir = '/usr/share/gpodder/'
icon_dir = '/usr/share/gpodder/images/gpodder.png'
artwork_dir = '/usr/share/gpodder/images/'
locale_dir = '/usr/share/locale/'

class Gpodder(SimpleGladeApp):
    channels = []
    
    active_item = None
    items_model = None
    
    active_channel = None
    channels_model = None

    channels_loaded = False

    download_status_manager = None
    tooltips = None

    # Local DB
    ldb = None

    # User Apps Reader
    uar = None

    def __init__(self, path="gpodder.glade",
                 root="gPodder",
                 domain=app_name, **kwargs):
        path = os.path.join(glade_dir, path)
        SimpleGladeApp.__init__(self, path, root, domain, **kwargs)

    #-- Gpodder.new {
    def new(self):
        if libgpodder.isDebugging():
            print "A new %s has been created" % self.__class__.__name__

        #self.gPodder.set_title( self.gPodder.get_title())
        #self.statusLabel.set_text( "Welcome to gPodder! Suggestions? Mail to: thp@perli.net")
        # set up the rendering of the comboAvailable combobox
        cellrenderer = gtk.CellRendererText()
        self.comboAvailable.pack_start( cellrenderer, True)
        self.comboAvailable.add_attribute( cellrenderer, 'text', 1)

        # set up the rendering of the comboDownloaded combobox
        cellrenderer = gtk.CellRendererText()
        self.comboDownloaded.pack_start( cellrenderer, True)
        self.comboDownloaded.add_attribute( cellrenderer, 'text', 1)

        #See http://www.pygtk.org/pygtk2tutorial/sec-CellRenderers.html
        #gtk.TreeViewColumn( "", gtk.CellRendererToggle(), active=3),
        namecell = gtk.CellRendererText()
        namecell.set_property('cell-background', 'white')
        namecolumn = gtk.TreeViewColumn( _("Episode"), namecell, text=1)
        namecolumn.add_attribute(namecell, "cell-background", 4)        

        sizecell = gtk.CellRendererText()
        sizecell.set_property('cell-background', 'white')
        sizecolumn = gtk.TreeViewColumn( _("Size"), sizecell, text=2)
        sizecolumn.add_attribute(sizecell, "cell-background", 4)

        releasecell = gtk.CellRendererText()
        releasecell.set_property('cell-background', 'white')
        releasecolumn = gtk.TreeViewColumn( _("Released"), releasecell, text=5)
        releasecolumn.add_attribute(releasecell, "cell-background", 4)
        
        for itemcolumn in ( namecolumn, sizecolumn, releasecolumn ):
            self.treeAvailable.append_column( itemcolumn)

        # enable multiple selection support
        self.treeAvailable.get_selection().set_mode( gtk.SELECTION_MULTIPLE)
        self.treeDownloads.get_selection().set_mode( gtk.SELECTION_MULTIPLE)
        self.treeDownloaded.get_selection().set_mode( gtk.SELECTION_MULTIPLE)
        
        # columns and renderers for the "downloaded" tab
        # more information: see above..
        namecell = gtk.CellRendererText()
        namecell.set_property('cell-background', 'white')
        namecolumn = gtk.TreeViewColumn( _("Episode"), namecell, text=1)
        namecolumn.add_attribute(namecell, "cell-background", 4)
        self.treeDownloaded.append_column( namecolumn)
        
        # columns and renderers for "download progress" tab
        episodecell = gtk.CellRendererText()
        episodecolumn = gtk.TreeViewColumn( _("Episode"), episodecell, text=0)
        
        speedcell = gtk.CellRendererText()
        speedcolumn = gtk.TreeViewColumn( _("Speed"), speedcell, text=1)
        
        progresscell = gtk.CellRendererProgress()
        progresscolumn = gtk.TreeViewColumn( _("Progress"), progresscell, value=2)
        
        for itemcolumn in ( episodecolumn, speedcolumn, progresscolumn ):
            self.treeDownloads.append_column( itemcolumn)
    
        new_model = gtk.ListStore( gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_INT)
        self.download_status_manager = downloadStatusManager()
        self.treeDownloads.set_model( self.download_status_manager.getModel())
        
        # read and display subscribed channels
        reader = gPodderChannelReader()
        self.channels = reader.read( False)
        self.channels_loaded = True

        # keep Downloaded channels list
        self.downloaded_channels = None
        self.active_downloaded_channels = 0
        
        # update view
        self.updateComboBox()
        self.updateDownloadedComboBox()

        # tooltips :)
        self.tooltips = gtk.Tooltips()
        self.tooltips.set_tip( self.btnEditChannel, _("Channel Info"))
        
        #Add Drag and Drop Support
        targets = [("text/plain", 0, 2), ('STRING', 0, 3), ('TEXT', 0, 4)]
        self.main_widget.drag_dest_set(gtk.DEST_DEFAULT_ALL, targets, \
                        gtk.gdk.ACTION_DEFAULT | gtk.gdk.ACTION_COPY | \
                        gtk.gdk.ACTION_DEFAULT)
        self.main_widget.connect("drag_data_received", self.drag_data_received)
        self.wNotebook.connect("switch-page", self.switched_notebook)

        # disable iPod sync features if not supported
        if not ipod_supported():
            self.ipod_functions( False)
        else:
            self.ipod_functions( True)

        # if we are running a SVN-based version, notify the user :)
        if app_version.rfind( "svn") != -1:
            self.showMessage( _("<b>gPodder development version %s</b>\nUse at your own risk, but also enjoy new features :)") % app_version)
        # Update the feed list if the user has set it up
        if gPodderLib().update_on_startup:
            self.update_feed_cache()
    #-- Gpodder.new }

    #-- Gpodder custom methods {
    def ipod_functions( self, enable = True):
        self.cleanup_ipod.set_sensitive( enable)
        self.sync_to_ipod.set_sensitive( enable)
    
    def updateComboBox( self):
        self.channels_model = channelsToModel( self.channels)
        
        self.comboAvailable.set_model( self.channels_model)
        try:
            self.comboAvailable.set_active( 0)
        except:
            pass
        #self.updateTreeView()

    def updateDownloadedComboBox( self):
        # now, update downloaded feeds tab:
        if self.ldb == None:
            self.ldb = localDB()
        # update downloaded_channels list
        self.downloaded_channels = self.ldb.getDownloadedChannelsList()
        self.comboDownloaded.set_model( self.ldb.getDownloadedChannelsModel())
        try:
            self.comboDownloaded.set_active( self.active_downloaded_channels)
        except:
            self.active_downloaded_channels = 0
            if libgpodder.isDebugging():
              print _('No downloaded podcasts found.')
    # end of self.updateDownloadedComboBox()
    
    def updateTreeView( self):
        try:
            self.items_model = self.channels[self.active_channel].getItemsModel()
            self.treeAvailable.set_model( self.items_model)
        except:
            if self.items_model != None:
                self.items_model.clear()
            self.showMessage( _("<b>No channels found</b>\n\nClick on <b><i>Channels</i></b> &gt; <b><i>Add channel..</i></b> to add a new channel."))
    
    def showMessage( self, message, title = _('gPodder message')):
        dlg = gtk.MessageDialog( self.gPodder, gtk.DIALOG_MODAL, gtk.MESSAGE_INFO, gtk.BUTTONS_OK)
        dlg.set_title( title)
        dlg.set_markup( message)
        
        dlg.run()
        dlg.destroy()

    def showConfirmation( self, message = _('Do you really want to do this?'), title = _('gPodder confirmation')):
        myresult = False
        dlg = gtk.MessageDialog( self.gPodder, gtk.DIALOG_MODAL, gtk.MESSAGE_QUESTION, gtk.BUTTONS_YES_NO)
        dlg.set_title( title)
        dlg.set_markup( message)

        if gtk.RESPONSE_YES == dlg.run():
            myresult = True
        
        dlg.destroy()
        if libgpodder.isDebugging():
            print "I Asked: %s" % message
            print "User answered: %s" % str(myresult)
        return myresult

    def set_icon(self):
        icon = self.get_icon('gpodder')
        self.main_widget.set_icon(icon)

    def get_icon(self, entry, size=24):
        #path = self.custom_handler.getIconPath(entry, size)
        path = icon_dir
        if path == None:
            pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, size, size)
            pb.fill(0x00000000)
        else:
            try:
                pb = gtk.gdk.pixbuf_new_from_file_at_size(path, size, size)
            except:
                pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, size, size)
                pb.fill(0x00000000)
        return pb

    def switched_notebook( self, notebook, page, page_num):
        # if we are NOT on the "available downloads" page, disable menu items
        if page_num != 0:
            is_available = False
        else:
            is_available = True
        
        # disable/enable menu items related to only the first notebook tab
        self.itemRemoveChannel.set_sensitive( is_available)
        self.itemEditChannel.set_sensitive( is_available)

        # when switching to last page, update the "downloaded" combo box
        if page_num == 2:
            self.updateDownloadedComboBox()

    def drag_data_received(self, widget, context, x, y, sel, ttype, time):
        result = sel.data
        self.add_new_channel( result)

    def refetch_channel_list( self):
        channels_should_be = len( self.channels)
        
        # fetch metadata for that channel
        gPodderChannelWriter().write( self.channels)
        self.channels = gPodderChannelReader().read( False)
        
        # fetch feed for that channel
        gPodderChannelWriter().write( self.channels)
        self.channels = gPodderChannelReader().read( False)
        
        # check if gPodderChannelReader has successfully added the channel
        if channels_should_be > len( self.channels):
            self.showMessage( _("There has been an error adding the channel.\nMaybe the URL is wrong?"))
    
    def add_new_channel( self, result = None):
        if result != None and result != "" and (result[:4] == "http" or result[:3] == "ftp"):
            for old_channel in self.channels:
                if old_channel.url == result:
                    if libgpodder.isDebugging():
                        print 'channel already exists in my list :)'
                    return
            if libgpodder.isDebugging():
                print ("Will add channel :%s") % result
            self.statusLabel.set_text( _("Fetching channel index..."))
            channel_new = podcastChannel( result)
            channel_new.shortname = "__unknown__"
            self.channels.append( channel_new)
            
            # download changed channels
            self.refetch_channel_list()

            # try to update combo box
            self.updateComboBox()
            self.statusLabel.set_text( "")
        else:
            if result != None and result != "":
                self.showMessage( _("Could not add new channel.\nOnly <b>http://</b> and <b>ftp://</b> URLs supported at the moment."))
    
    def get_current_channel_downloaded( self):
        iter = self.comboDownloaded.get_active_iter()
        return self.comboDownloaded.get_model().get_value( iter, 0)
    
    def sync_to_ipod_proc( self, sync_win):
        gpl = gPodderLib()
        gpl.loadConfig()
        sync = gPodder_iPodSync( ipod_mount = gpl.ipod_mount, callback_status = sync_win.set_status, callback_progress = sync_win.set_progress, callback_done = sync_win.close)
        if not sync.open():
            gobject.idle_add( self.showMessage, _('Cannot access iPod.\nMake sure your iPod is connected and mounted.'))
            sync.close()
            return False
        for channel in self.downloaded_channels:
            channel.set_metadata_from_localdb()
            sync.copy_channel_to_ipod( channel)
        sync.close()

    def ipod_cleanup_proc( self, sync_win):
        gpl = gPodderLib()
        gpl.loadConfig()
        sync = gPodder_iPodSync( ipod_mount = gpl.ipod_mount, callback_status = sync_win.set_status, callback_progress = sync_win.set_progress, callback_done = sync_win.close)
        if not sync.open():
            gobject.idle_add( self.showMessage, _('Cannot access iPod.\nMake sure your iPod is connected.'))
            sync.close()
            return False
        sync.clean_playlist()
        sync.close()

    def update_feed_cache_callback( self, progressbar, position, count):
        progressbar.set_text( _("%d of %d") % ( position, count ))
        progressbar.set_fraction( ((1.00*position) / (1.00*count)))

    def update_feed_cache(self):
        reader = gPodderChannelReader()
        please_wait = gtk.Dialog( _("Updating feed cache"), self.gPodder)
        #please_wait.vbox.set_border_width( 10)
        please_wait.vbox.set_spacing( 5)
        please_wait.set_border_width( 5)

        label = gtk.Label( _("Please wait - gPodder is updating its feed cache..."))
        myprogressbar = gtk.ProgressBar()

        # put it all together
        please_wait.vbox.pack_start( label)
        please_wait.vbox.pack_end( myprogressbar)
        please_wait.show_all()

        # hide action anre and separator line
        please_wait.action_area.hide()
        please_wait.set_has_separator( False)

        # let's get down to business..
        self.channels = reader.read( True, lambda pos, count: self.update_feed_cache_callback( myprogressbar, pos, count))
        please_wait.destroy()
        #self.labelStatus.set_text( "")
        self.updateComboBox()

    def download_podcast_by_url( self, url, want_message_dialog = True, widget = None):
        self.active_item = self.channels[self.active_channel].getActiveByUrl( url)
        
        current_channel = self.channels[self.active_channel]
        current_podcast = current_channel[self.active_item]
        filename = current_channel.getPodcastFilename( current_podcast.url)
        if widget != None and widget.get_name() == "treeAvailable":
            Gpodderepisode().set_episode( current_podcast, current_channel)
            return
        
        if os.path.exists( filename) == False and self.download_status_manager.is_download_in_progress( current_podcast.url) == False:
            downloadThread( current_podcast.url, filename, None, self.download_status_manager, current_podcast.title, current_channel, current_podcast, self.ldb).download()
        else:
            if want_message_dialog:
                self.showMessage( _("You have already downloaded this episode\nor you are currently downloading it."))
            # if we're not downloading it, but it exists: add to localdb (if not already done so)
            if os.path.exists( filename) == True:
                if libgpodder.isDebugging():
                    print "already downloaded, trying to add to localDB if needed"
                if current_channel.addDownloadedItem( current_podcast):
                    self.ldb.clear_cache()
    #-- Gpodder custom methods }

    #-- Gpodder.close_gpodder {
    def close_gpodder(self, widget, *args):
        if libgpodder.isDebugging():
            print "close_gpodder called with self.%s" % widget.get_name()
        
        if self.channels_loaded:
            gPodderChannelWriter().write( self.channels)

        # cancel downloads by killing all threads in the list
        if self.download_status_manager:
            self.download_status_manager.cancelAll()

        self.gtk_main_quit()
    #-- Gpodder.close_gpodder }

    #-- Gpodder.on_itemUpdate_activate {
    def on_itemUpdate_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_itemUpdate_activate called with self.%s" % widget.get_name()
        self.update_feed_cache()
    #-- Gpodder.on_itemUpdate_activate }

    #-- Gpodder.on_sync_to_ipod_activate {
    def on_sync_to_ipod_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_sync_to_ipod_activate called with self.%s" % widget.get_name()
        sync_win = Gpoddersync()
        while gtk.events_pending():
            gtk.main_iteration( False)
        args = ( sync_win, )
        thread = Thread( target = self.sync_to_ipod_proc, args = args)
        thread.start()
    #-- Gpodder.on_sync_to_ipod_activate }

    #-- Gpodder.on_cleanup_ipod_activate {
    def on_cleanup_ipod_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_cleanup_ipod_activate called with self.%s" % widget.get_name()
        if not self.showConfirmation( _('Do you really want to truncate the Podcasts playlist on your iPod?')):
            return
        sync_win = Gpoddersync()
        while gtk.events_pending():
            gtk.main_iteration( False)
        args = ( sync_win, )
        thread = Thread( target = self.ipod_cleanup_proc, args = args)
        thread.start()
    #-- Gpodder.on_cleanup_ipod_activate }

    #-- Gpodder.on_itemPreferences_activate {
    def on_itemPreferences_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_itemPreferences_activate called with self.%s" % widget.get_name()
        if self.uar == None:
            self.uar = UserAppsReader()
            self.uar.read()
        prop = Gpodderproperties()
        prop.set_uar( self.uar)
    #-- Gpodder.on_itemPreferences_activate }

    #-- Gpodder.on_itemAddChannel_activate {
    def on_itemAddChannel_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_itemAddChannel_activate called with self.%s" % widget.get_name()
        ch = Gpodderchannel()
        ch.entryURL.set_text( "http://")
        result = ch.requestURL()
        self.add_new_channel( result)
    #-- Gpodder.on_itemAddChannel_activate }

    #-- Gpodder.on_itemEditChannel_activate {
    def on_itemEditChannel_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_itemEditChannel_activate called with self.%s" % widget.get_name()
        channel = None
        try:
            channel = self.channels[self.active_channel]
        except:
            self.showMessage( _("Cannot edit this channel.\n\nNo channel found."))
            return
        
        result = Gpodderchannel().requestURL( channel)
        if result != channel.url and result != None and result != "" and (result[:4] == "http" or result[:3] == "ftp"):
            if libgpodder.isDebugging():
                print 'Changing ID %d from "%s" to "%s"' % (active, channel.url, result)
            self.statusLabel.set_text( _("Fetching channel index..."))
            channel_new = podcastChannel( result)
            channel_new.shortname = "__unknown__"
            new_channels = self.channels[0:active]
            new_channels.append( channel_new)
            new_channels.extend( self.channels[active+1:])
            self.channels = new_channels
            
            # fetch new channels
            self.refetch_channel_list()
            
            self.updateComboBox()
            self.statusLabel.set_text( "")
        # end if result != None etc etc
    #-- Gpodder.on_itemEditChannel_activate }

    #-- Gpodder.on_itemRemoveChannel_activate {
    def on_itemRemoveChannel_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_itemRemoveChannel_activate called with self.%s" % widget.get_name()
        
        try:
            if self.showConfirmation( _("Do you really want to remove this channel?\n\n %s") % self.channels[self.active_channel].title) == False:
                return
            self.channels.remove( self.channels[self.active_channel])
            gPodderChannelWriter().write( self.channels)
            self.channels = gPodderChannelReader().read( False)
            self.updateComboBox()
        except:
            self.showMessage( _("Could not delete channel.\nProbably no channel is selected."))
    #-- Gpodder.on_itemRemoveChannel_activate }

    #-- Gpodder.on_itemExportChannels_activate {
    def on_itemExportChannels_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_itemExportChannels_activate called with self.%s" % widget.get_name()
        if len( self.channels) == 0:
          self.showMessage( _("Your channel list is empty. Nothing to export."))
          return
        dlg = gtk.FileChooserDialog( title=_("Export to OPML"), parent = None, action = gtk.FILE_CHOOSER_ACTION_SAVE)
        dlg.add_button( gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
        dlg.add_button( gtk.STOCK_SAVE, gtk.RESPONSE_OK)
        response = dlg.run()
        if response == gtk.RESPONSE_OK:
            foutname = dlg.get_filename()
            if foutname[-5:] != ".opml" and foutname[-4:] != ".xml":
                foutname = foutname + ".opml"
            if libgpodder.isDebugging():
                print 'Exporting channels list to: %s' % foutname
            w = opmlWriter( foutname)
            for ch in self.channels:
                w.addChannel( ch)
            w.close()
        # end response is ok
        dlg.destroy()
    # end dlg.run()
    #-- Gpodder.on_itemExportChannels_activate }

    #-- Gpodder.on_itemImportChannels_activate {
    def on_itemImportChannels_activate(self, widget, *args):
        if libgpodder.isDebugging:
            print "on_itemImportChannels_activate called with self.%s" % widget.get_name()
        opml_lister = Gpodderopmllister()
        
        gl = gPodderLib()
        url = gl.opml_url

        opml_lister.get_channels_from_url( url, self.add_new_channel)
    #-- Gpodder.on_itemImportChannels_activate }

    #-- Gpodder.on_itemAbout_activate {
    def on_itemAbout_activate(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_itemAbout_activate called with self.%s" % widget.get_name()
        dlg = gtk.AboutDialog()
        dlg.set_name( app_name)
        dlg.set_version( app_version)
        dlg.set_authors( app_authors)
        dlg.set_copyright( app_copyright)
        dlg.set_website( app_website)
        dlg.set_translator_credits( _('translator-credits'))
        #
        try:
            dlg.set_logo( gtk.gdk.pixbuf_new_from_file_at_size( icon_dir, 164, 164))
        except:
            None
        #
        dlg.run()
    #-- Gpodder.on_itemAbout_activate }

    #-- Gpodder.on_wNotebook_switch_page {
    def on_wNotebook_switch_page(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_wNotebook_switch_page called with self.%s" % widget.get_name()
    #-- Gpodder.on_wNotebook_switch_page }

    #-- Gpodder.on_comboAvailable_changed {
    def on_comboAvailable_changed(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_comboAvailable_changed called with self.%s" % widget.get_name()
        self.active_channel = self.comboAvailable.get_active()
        self.updateTreeView()
    #-- Gpodder.on_comboAvailable_changed }

    #-- Gpodder.on_btnEditChannel_clicked {
    def on_btnEditChannel_clicked(self, widget, *args):
        if libgpodder.isDebugging():
           print "on_btnEditChannel_clicked called with self.%s" % widget.get_name()
        self.on_itemEditChannel_activate( widget, args)
    #-- Gpodder.on_btnEditChannel_clicked }

    #-- Gpodder.on_treeAvailable_row_activated {
    def on_treeAvailable_row_activated(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_treeAvailable_row_activated called with self.%s" % widget.get_name()
        try:
            selection = self.treeAvailable.get_selection()
            selection_tuple = selection.get_selected_rows()
            if selection.count_selected_rows() > 1:
                widget_to_send = None
                show_message_dialog = False
            else:
                widget_to_send = widget
                show_message_dialog = True
            for apath in selection_tuple[1]:
                selection_iter = self.items_model.get_iter( apath)
                url = self.items_model.get_value( selection_iter, 0)
                self.download_podcast_by_url( url, show_message_dialog, widget_to_send)
        except:
            self.showMessage( _("You have not selected an episode to download."))
    #-- Gpodder.on_treeAvailable_row_activated }

    #-- Gpodder.on_btnDownload_clicked {
    def on_btnDownload_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnDownload_clicked called with self.%s" % widget.get_name()
        self.on_treeAvailable_row_activated( widget, args)
    #-- Gpodder.on_btnDownload_clicked }

    #-- Gpodder.on_treeDownloads_row_activated {
    def on_treeDownloads_row_activated(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_treeDownloads_row_activated called with self.%s" % widget.get_name()
        selection = self.treeDownloads.get_selection()
        selection_tuple = selection.get_selected_rows()
        if selection.count_selected_rows() == 0:
            if libgpodder.isDebugging():
                print "will not cancel any download. reason: nothing selected."
            return

        if selection.count_selected_rows() == 1:
            msg = _("Do you really want to cancel this download?")
        else:
            msg = _("Do you really want to cancel %d downloads?") % selection.count_selected_rows()
        if self.showConfirmation( msg):
            # cancel downloads one by one
            try:
                for apath in selection_tuple[1]:
                    selection_iter = self.treeDownloads.get_model().get_iter( apath)
                    url = self.download_status_manager.get_url_by_iter( selection_iter)
                    self.download_status_manager.cancel_by_url( url)
            except:
                if libgpodder.isDebugging():
                      print "error while cancelling downloads"
    #-- Gpodder.on_treeDownloads_row_activated }

    #-- Gpodder.on_btnCancelDownloadStatus_clicked {
    def on_btnCancelDownloadStatus_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnCancelDownloadStatus_clicked called with self.%s" % widget.get_name()
        self.on_treeDownloads_row_activated( widget, None)
    #-- Gpodder.on_btnCancelDownloadStatus_clicked }

    #-- Gpodder.on_comboDownloaded_changed {
    def on_comboDownloaded_changed(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_comboDownloaded_changed called with self.%s" % widget.get_name()
        self.active_downloaded_channels = self.comboDownloaded.get_active()
        try:
          filename = self.get_current_channel_downloaded()
          new_model = self.ldb.getDownloadedEpisodesModelByFilename( filename)
          self.treeDownloaded.set_model( new_model)
        except:
          # silently ignore the fact that we do not have any downloads
          pass
    #-- Gpodder.on_comboDownloaded_changed }

    #-- Gpodder.on_treeDownloaded_row_activated {
    def on_treeDownloaded_row_activated(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_treeDownloaded_row_activated called with self.%s" % widget.get_name()
        try:
            channel_filename = self.get_current_channel_downloaded()
 
            selection = self.treeDownloaded.get_selection()
            model = self.treeDownloaded.get_model()
 
            if selection.count_selected_rows() != 1:
                # bug out, 'cos we only want one, really!
                return
 
            selection_tuple = selection.get_selected_rows()
            apath = selection_tuple[1][0]
            selection_iter = model.get_iter( apath)
            url = model.get_value( selection_iter, 0)
            if widget.get_name() == "treeDownloaded":
                podcast = self.ldb.get_podcast_by_podcast_url( channel_filename, url)
                Gpodderepisode().set_episode( podcast)
                return
            filename_final = self.ldb.getLocalFilenameByPodcastURL( channel_filename, url)
            filename_final = self.ldb.getLocalFilenameByPodcastURL( channel_filename, url)
            gPodderLib().openFilename( filename_final)
        except:
          self.showMessage( _("No episode selected."))
    #-- Gpodder.on_treeDownloaded_row_activated }

    #-- Gpodder.on_btnDownloadedExecute_clicked {
    def on_btnDownloadedExecute_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnDownloadedExecute_clicked called with self.%s" % widget.get_name()
        self.on_treeDownloaded_row_activated( widget, args)
    #-- Gpodder.on_btnDownloadedExecute_clicked }

    #-- Gpodder.on_btnDownloadedDelete_clicked {
    def on_btnDownloadedDelete_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnDownloadedDelete_clicked called with self.%s" % widget.get_name()

        channel_filename = self.get_current_channel_downloaded()
        selection = self.treeDownloaded.get_selection()
        selection_tuple = selection.get_selected_rows()
        model = self.treeDownloaded.get_model()
        
        if selection.count_selected_rows() == 0:
            if libgpodder.isDebugging():
                print "will not remove any episode reason: nothing selected."
            return

        if selection.count_selected_rows() == 1:
            msg = _("Do you really want to remove this episode?")
        else:
            msg = _("Do you really want to remove %d episodes?" % ( selection.count_selected_rows() ))
        
        # if user confirms deletion, let's remove some stuff ;)
        if self.showConfirmation( msg):
            try:
                # iterate over the selection, see also on_treeDownloads_row_activated
                for apath in selection_tuple[1]:
                    selection_iter = model.get_iter( apath)
                    url = model.get_value( selection_iter, 0)
                    title = model.get_value( selection_iter, 1)
                    filename_final = self.ldb.getLocalFilenameByPodcastURL( channel_filename, url)
                    current_channel = self.downloaded_channels[self.comboDownloaded.get_active()]
                    if current_channel.deleteDownloadedItemByUrlAndTitle( url, title):
                        gPodderLib().deleteFilename( filename_final)
      
                # now, clear local db cache so we can re-read it
                self.ldb.clear_cache()
                self.updateComboBox()
                self.updateDownloadedComboBox()
            except:
                if libgpodder.isDebugging():
                    print "error while deleting (some) downloads"
    #-- Gpodder.on_btnDownloadedDelete_clicked }


class Gpodderchannel(SimpleGladeApp):
    event = None
    channel = None
    podcast = None
    thread = None

    def __init__(self, path="gpodder.glade",
                 root="gPodderChannel",
                 domain=app_name, **kwargs):
        waiting = None
        url = ""
        result = False
        path = os.path.join(glade_dir, path)
        SimpleGladeApp.__init__(self, path, root, domain, **kwargs)

    #-- Gpodderchannel.new {
    def new(self):
        if libgpodder.isDebugging():
            print "A new %s has been created" % self.__class__.__name__
    #-- Gpodderchannel.new }

    #-- Gpodderchannel custom methods {
    def requestURL( self, channel = None):
        if channel != None:
            self.entryURL.set_text( channel.url)
            self.downloadTo.set_text( channel.save_dir)
            self.channel_title.set_markup( "<b>%s</b>" % channel.title)
            channel.set_metadata_from_localdb()
            self.cbNoSync.set_active( not channel.sync_to_devices)
            self.musicPlaylist.set_text( channel.device_playlist_name)
            self.cbMusicChannel.set_active( channel.is_music_channel)
            description = channel.description
            if channel.image != None:
                # load image in background
                gPodderLib().get_image_from_url( channel.image, self.imgCover.set_from_pixbuf, self.labelCoverStatus.set_text, self.labelCoverStatus.hide, channel.cover_file)
        else:
            self.channel_title.set_markup( "<b>%s</b>" % _("(unknown)"))
            description = _("(unknown)")
        
        b = gtk.TextBuffer()
        b.set_text( description)
        self.channel_description.set_buffer( b)
        
        self.waiting = Event()
        while self.waiting.isSet() == False:
            self.waiting.wait( 0.01)
            while gtk.events_pending():
                gtk.main_iteration( False)
        
        if self.result == True:
            if channel != None:
                channel.sync_to_devices = not self.cbNoSync.get_active()
                channel.is_music_channel = self.cbMusicChannel.get_active()
                channel.device_playlist_name = self.musicPlaylist.get_text()
                channel.save_metadata_to_localdb()
            return self.url
        else:
            return None
    #-- Gpodderchannel custom methods }

    #-- Gpodderchannel.on_gPodderChannel_destroy {
    def on_gPodderChannel_destroy(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_gPodderChannel_destroy called with self.%s" % widget.get_name()
        self.result = False
    #-- Gpodderchannel.on_gPodderChannel_destroy }

    #-- Gpodderchannel.on_cbMusicChannel_toggled {
    def on_cbMusicChannel_toggled(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_cbMusicChannel_toggled called with self.%s" % widget.get_name()
        self.musicPlaylist.set_sensitive( self.cbMusicChannel.get_active())
    #-- Gpodderchannel.on_cbMusicChannel_toggled }

    #-- Gpodderchannel.on_btnOK_clicked {
    def on_btnOK_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnOK_clicked called with self.%s" % widget.get_name()
        self.url = self.entryURL.get_text()
        self.gPodderChannel.destroy()
        self.result = True

        if self.waiting != None:
            self.waiting.set()
    #-- Gpodderchannel.on_btnOK_clicked }

    #-- Gpodderchannel.on_btnCancel_clicked {
    def on_btnCancel_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnCancel_clicked called with self.%s" % widget.get_name()
        self.gPodderChannel.destroy()
        self.result = False
        
        if self.waiting != None:
            self.waiting.set()
    #-- Gpodderchannel.on_btnCancel_clicked }


class Gpodderproperties(SimpleGladeApp):
    def __init__(self, path="gpodder.glade",
                 root="gPodderProperties",
                 domain=app_name, **kwargs):
        path = os.path.join(glade_dir, path)
        SimpleGladeApp.__init__(self, path, root, domain, **kwargs)

    #-- Gpodderproperties.new {
    def new(self):
        if libgpodder.isDebugging():
            print "A new %s has been created" % self.__class__.__name__
        gl = gPodderLib()
        self.httpProxy.set_text( gl.http_proxy)
        self.ftpProxy.set_text( gl.ftp_proxy)
        self.openApp.set_text( gl.open_app)
        self.iPodMountpoint.set_text( gl.ipod_mount)
        self.opmlURL.set_text( gl.opml_url)
        self.updateonstartup.set_active(gl.update_on_startup)
        # the use proxy env vars check box
        self.cbEnvironmentVariables.set_active( gl.proxy_use_environment)
        # if the symlink exists, set the checkbox active
        self.cbDesktopSymlink.set_active( gl.getDesktopSymlink())
        # setup cell renderers
        cellrenderer = gtk.CellRendererPixbuf()
        self.comboPlayerApp.pack_start( cellrenderer, False)
        self.comboPlayerApp.add_attribute( cellrenderer, 'pixbuf', 2)
        cellrenderer = gtk.CellRendererText()
        self.comboPlayerApp.pack_start( cellrenderer, True)
        self.comboPlayerApp.add_attribute( cellrenderer, 'markup', 0)
        # end setup cell renderers
        self.on_close = None
    #-- Gpodderproperties.new }

    #-- Gpodderproperties custom methods {
    def update_mountpoint( self, ipod):
        if ipod == None or ipod.mount_point == None:
            self.iPodMountpoint.set_text( '')
        else:
            self.iPodMountpoint.set_text( ipod.mount_point)
    
    def set_uar( self, uar):
        self.comboPlayerApp.set_model( uar.get_applications_as_model())
        # try to activate an item
        index = self.find_active()
        self.comboPlayerApp.set_active( index)
    # end set_uar
    
    def find_active( self):
        model = self.comboPlayerApp.get_model()
        iter = model.get_iter_first()
        index = 0
        while iter != None:
            command = model.get_value( iter, 1)
            if command == self.openApp.get_text():
                return index
            iter = model.iter_next( iter)
            index = index + 1
        # return last item = custom command
        return index-1
    # end find_active
    #-- Gpodderproperties custom methods }

    #-- Gpodderproperties.on_gPodderProperties_destroy {
    def on_gPodderProperties_destroy(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_gPodderProperties_destroy called with self.%s" % widget.get_name()
        if self.on_close != None:
            self.on_close()
    #-- Gpodderproperties.on_gPodderProperties_destroy }

    #-- Gpodderproperties.on_comboPlayerApp_changed {
    def on_comboPlayerApp_changed(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_comboPlayerApp_changed called with self.%s" % widget.get_name()
        
        # find out which one
        iter = self.comboPlayerApp.get_active_iter()
        model = self.comboPlayerApp.get_model()
        command = model.get_value( iter, 1)
        if command == '':
            self.openApp.set_sensitive( True)
            self.openApp.show()
            self.labelCustomCommand.show()
        else:
            self.openApp.set_text( command)
            self.openApp.set_sensitive( False)
            self.openApp.hide()
            self.labelCustomCommand.hide()
    #-- Gpodderproperties.on_comboPlayerApp_changed }

    #-- Gpodderproperties.on_cbEnvironmentVariables_toggled {
    def on_cbEnvironmentVariables_toggled(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_cbEnvironmentVariables_toggled called with self.%s" % widget.get_name()
        sens = not self.cbEnvironmentVariables.get_active()
        self.httpProxy.set_sensitive( sens)
        self.ftpProxy.set_sensitive( sens)
    #-- Gpodderproperties.on_cbEnvironmentVariables_toggled }

    #-- Gpodderproperties.on_btnOK_clicked {
    def on_btnOK_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnOK_clicked called with self.%s" % widget.get_name()
        gl = gPodderLib()
        gl.http_proxy = self.httpProxy.get_text()
        gl.ftp_proxy = self.ftpProxy.get_text()
        gl.open_app = self.openApp.get_text()
        gl.proxy_use_environment = self.cbEnvironmentVariables.get_active()
        gl.ipod_mount = self.iPodMountpoint.get_text()
        gl.opml_url = self.opmlURL.get_text()
        gl.update_on_startup = self.updateonstartup.get_active()
        gl.propertiesChanged()
        # create or remove symlink to download dir on desktop
        if self.cbDesktopSymlink.get_active():
            gl.createDesktopSymlink()
        else:
            gl.removeDesktopSymlink()
        self.gPodderProperties.destroy()
    #-- Gpodderproperties.on_btnOK_clicked }

    #-- Gpodderproperties.on_btnCancel_clicked {
    def on_btnCancel_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnCancel_clicked called with self.%s" % widget.get_name()
        self.gPodderProperties.destroy()
    #-- Gpodderproperties.on_btnCancel_clicked }


class Gpodderepisode(SimpleGladeApp):
    def __init__(self, path="gpodder.glade",
                 root="gPodderEpisode",
                 domain=app_name, **kwargs):
        path = os.path.join(glade_dir, path)
        SimpleGladeApp.__init__(self, path, root, domain, **kwargs)

    #-- Gpodderepisode.new {
    def new(self):
        if libgpodder.isDebugging():
            print "A new %s has been created" % self.__class__.__name__
    #-- Gpodderepisode.new }

    #-- Gpodderepisode custom methods {
    #   Write your own methods here
    def set_episode( self, episode, channel = None):
        self.episode_title.set_markup( '<big><b>%s</b></big>' % episode.title)
        b = gtk.TextBuffer()
        b.set_text( strip( episode.description))
        self.episode_description.set_buffer( b)
        self.entryURL.set_text(episode.url)
        self.entryLink.set_text(episode.link)
        if episode.link == '' and channel != None:
            self.entryLink.set_text( channel.link)
        self.labelPubDate.set_markup( '<b>%s</b>' % ( episode.pubDate ))
    #-- Gpodderepisode custom methods }

    #-- Gpodderepisode.on_btnCloseWindow_clicked {
    def on_btnCloseWindow_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnCloseWindow_clicked called with self.%s" % widget.get_name()
        self.gPodderEpisode.destroy()
    #-- Gpodderepisode.on_btnCloseWindow_clicked }


class Gpoddersync(SimpleGladeApp):

    def __init__(self, path="gpodder.glade",
                 root="gPodderSync",
                 domain=app_name, **kwargs):
        path = os.path.join(glade_dir, path)
        SimpleGladeApp.__init__(self, path, root, domain, **kwargs)

    #-- Gpoddersync.new {
    def new(self):
        global artwork_dir
        if libgpodder.isDebugging():
            print "A new %s has been created" % self.__class__.__name__
        self.imageSyncServer.set_from_file( artwork_dir + 'computer.png')
        self.imageSyncAnimation.set_from_file( artwork_dir + 'sync-anim.gif')
        self.imageSyncClient.set_from_file( artwork_dir + 'ipod-mini.png')
    #-- Gpoddersync.new }

    #-- Gpoddersync custom methods {
    def set_progress( self, pos, max):
        self.pbSync.set_fraction( 1.0*pos/max)
        percent = _('%d of %d') % ( pos, max )
        self.pbSync.set_text( percent)

    def set_status( self, episode = None, channel = None, progressbar = None):
        if episode != None:
            self.labelEpisode.set_text( episode)

        if channel != None:
            self.labelChannel.set_text( channel)

        if progressbar != None:
            self.pbSync.set_text( progressbar)

    def close( self):
        self.gPodderSync.destroy()
    #-- Gpoddersync custom methods }

    #-- Gpoddersync.on_gPodderSync_destroy {
    def on_gPodderSync_destroy(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_gPodderSync_destroy called with self.%s" % widget.get_name()
    #-- Gpoddersync.on_gPodderSync_destroy }


class Gpodderopmllister(SimpleGladeApp):

    def __init__(self, path="gpodder.glade",
                 root="gPodderOpmlLister",
                 domain=app_name, **kwargs):
        path = os.path.join(glade_dir, path)
        SimpleGladeApp.__init__(self, path, root, domain, **kwargs)

    #-- Gpodderopmllister.new {
    def new(self):
        if libgpodder.isDebugging():
            print "A new %s has been created" % self.__class__.__name__

        # initiate channels list
        self.channels = []
        self.callback_for_channel = None

        togglecell = gtk.CellRendererToggle()
        togglecell.set_property( 'activatable', True)
        togglecell.connect( 'toggled', self.callback_edited)
        togglecolumn = gtk.TreeViewColumn( _("Subscribe"), togglecell, active=0)
        
        titlecell = gtk.CellRendererText()
        titlecolumn = gtk.TreeViewColumn( _("Channel name"), titlecell, text=1)

        for itemcolumn in ( togglecolumn, titlecolumn ):
            self.treeviewChannelChooser.append_column( itemcolumn)
    #-- Gpodderopmllister.new }

    #-- Gpodderopmllister custom methods {
    #   Write your own methods here
    def callback_edited( self, cell, path):
        model = self.treeviewChannelChooser.get_model()
        activated = not model[path][0]
        url = model[path][2]

        model[path][0] = activated

        if activated:
            self.channels.append( url)
        else:
            self.channels.remove( url)

        if libgpodder.isDebugging():
            print url
    
    def get_channels_from_url( self, url, callback):
        reader = opmlReader()
        reader.parseXML( url)
        self.treeviewChannelChooser.set_model( reader.get_model())
        self.callback_for_channel = callback
    #-- Gpodderopmllister custom methods }

    #-- Gpodderopmllister.on_gPodderOpmlLister_destroy {
    def on_gPodderOpmlLister_destroy(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_gPodderOpmlLister_destroy called with self.%s" % widget.get_name()
    #-- Gpodderopmllister.on_gPodderOpmlLister_destroy }

    #-- Gpodderopmllister.on_btnOK_clicked {
    def on_btnOK_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnOK_clicked called with self.%s" % widget.get_name()
        self.gPodderOpmlLister.destroy()
        # add channels that have been selected
        for url in self.channels:
            if self.callback_for_channel != None:
                self.callback_for_channel (url)
    #-- Gpodderopmllister.on_btnOK_clicked }

    #-- Gpodderopmllister.on_btnCancel_clicked {
    def on_btnCancel_clicked(self, widget, *args):
        if libgpodder.isDebugging():
            print "on_btnCancel_clicked called with self.%s" % widget.get_name()
        self.gPodderOpmlLister.destroy()
    #-- Gpodderopmllister.on_btnCancel_clicked }


#-- main {

def main( __version__ = None):
    global app_version
    
    #gtk.gdk.threads_init()
    gobject.threads_init()
    bindtextdomain( app_name, locale_dir)
    app_version = __version__
    g_podder = Gpodder()
    #g_podder_channel = Gpodderchannel()
    #g_podder_properties = Gpodderproperties()
    #g_podder_episode = Gpodderepisode()
    #g_podder_sync = Gpoddersync()
    #g_podder_opml_lister = Gpodderopmllister()

    g_podder.set_icon()
    g_podder.run()

if __name__ == "__main__":
    print _("Please do not call gpodder.py directly. Instead, call the gpodder binary.")
    sys.exit( -1)

#-- main }