gpodder/src/gpodder/gtkui/interface/configeditor.py

# -*- coding: utf-8 -*-
#
# gPodder - A media aggregator and podcast client
# Copyright (c) 2005-2010 Thomas Perl and the gPodder Team
#
# gPodder 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.
#
# gPodder 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, see <http://www.gnu.org/licenses/>.
#

import gtk

from xml.sax import saxutils

import gpodder

_ = gpodder.gettext

from gpodder.gtkui.config import ConfigModel

from gpodder.gtkui.interface.common import BuilderWidget


class gPodderConfigEditor(BuilderWidget):
    finger_friendly_widgets = ['btnShowAll', 'btnClose', 'configeditor']
    
    def new(self):
        name_column = gtk.TreeViewColumn(_('Setting'))
        name_renderer = gtk.CellRendererText()
        name_column.pack_start(name_renderer)
        name_column.add_attribute(name_renderer, 'text', 0)
        name_column.add_attribute(name_renderer, 'style', 5)
        self.configeditor.append_column(name_column)

        value_column = gtk.TreeViewColumn(_('Set to'))
        value_check_renderer = gtk.CellRendererToggle()
        value_column.pack_start(value_check_renderer, expand=False)
        value_column.add_attribute(value_check_renderer, 'active', 7)
        value_column.add_attribute(value_check_renderer, 'visible', 6)
        value_column.add_attribute(value_check_renderer, 'activatable', 6)
        value_check_renderer.connect('toggled', self.value_toggled)

        value_renderer = gtk.CellRendererText()
        value_column.pack_start(value_renderer)
        value_column.add_attribute(value_renderer, 'text', 2)
        value_column.add_attribute(value_renderer, 'visible', 4)
        value_column.add_attribute(value_renderer, 'editable', 4)
        value_column.add_attribute(value_renderer, 'style', 5)
        value_renderer.connect('edited', self.value_edited)
        self.configeditor.append_column(value_column)

        self.model = ConfigModel(self._config)
        self.filter = self.model.filter_new()
        self.filter.set_visible_func(self.visible_func)

        self.configeditor.set_model(self.filter)
        self.configeditor.set_rules_hint(True)
        self.configeditor.get_selection().connect( 'changed',
            self.on_configeditor_row_changed )

    def visible_func(self, model, iter, user_data=None):
        text = self.entryFilter.get_text().lower()
        if text == '':
            return True
        else:
            # either the variable name or its value
            return (text in model.get_value(iter, 0).lower() or
                    text in model.get_value(iter, 2).lower())

    def value_edited(self, renderer, path, new_text):
        model = self.configeditor.get_model()
        iter = model.get_iter(path)
        name = model.get_value(iter, 0)
        type_cute = model.get_value(iter, 1)

        if not self._config.update_field(name, new_text):
            self.notification(_('Cannot set value of <b>%s</b> to <i>%s</i>.\n\nNeeded data type: %s') % (saxutils.escape(name), saxutils.escape(new_text), saxutils.escape(type_cute)), _('Error updating %s') % saxutils.escape(name))
    
    def value_toggled(self, renderer, path):
        model = self.configeditor.get_model()
        iter = model.get_iter(path)
        field_name = model.get_value(iter, 0)
        field_type = model.get_value(iter, 3)

        # Flip the boolean config flag
        if field_type == bool:
            self._config.toggle_flag(field_name)
    
    def on_entryFilter_changed(self, widget):
        self.filter.refilter()

    def on_btnShowAll_clicked(self, widget):
        self.entryFilter.set_text('')
        self.entryFilter.grab_focus()

    def on_btnClose_clicked(self, widget):
        self.gPodderConfigEditor.destroy()

    def on_gPodderConfigEditor_destroy(self, widget):
        self.model.stop_observing()

    def on_configeditor_row_changed(self, treeselection):
        model, iter = treeselection.get_selected()
        if iter is not None:
            option_name = self._config.get_description( model.get(iter, 0)[0] )
            self.config_option_description_label.set_text(option_name)