gedit-encoding-plugin/encodingpy.py

   1 # -*- coding: utf-8 -*-
   2 #  Open the document in a different encoding
   3 #  Dependence: python >=2.5, pygtk
   4 #
   5 #  Install: copy encoding.gedit-plugin and encodingpy.py to ~/.gnome2/gedit/plugins/
   6 #
   7 #  Copyright (C) 2008 Vladislav Gorbunov
   8 #
   9 #  This program is free software; you can redistribute it and/or modify
  10 #  it under the terms of the GNU General Public License as published by
  11 #  the Free Software Foundation; either version 3 of the License, or
  12 #  (at your option) any later version.
  13 #
  14 #  This program is distributed in the hope that it will be useful,
  15 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 #  GNU General Public License for more details.
  18 #
  19 #  You should have received a copy of the GNU General Public License
  20 #  along with this program; if not, write to the Free Software
  21 #  Foundation, Inc., 59 Temple Place, Suite 330,
  22 #  Boston, MA 02111-1307, USA.
  23
  24 # TODO:
  25 # fix document_loaded: assertion `(tab->priv->state == GEDIT_TAB_STATE_LOADING) || (tab->priv->state == GEDIT_TAB_STATE_REVERTING)' failed
  26
  27 from gettext import gettext as _
  28
  29 from gi.repository import GObject, Gtk, Gio, Gedit
  30 import functools
  31
  32 # All encodings names
  33 enclist_func = lambda i=0: [Gedit.encoding_get_from_index(i)] + enclist_func(i+1) if Gedit.encoding_get_from_index(i) else []
  34
  35 shown_enc = Gio.Settings.new("org.gnome.gedit.preferences.encodings").get_strv("shown-in-menu")
  36 # show the full list of encodings if not they not configured in the Open/Save Dialog
  37 enclist = sorted(([Gedit.encoding_get_from_charset(encname) for encname in shown_enc]
  38                  if shown_enc else enclist_func())
  39                   + [Gedit.encoding_get_utf8()], key=lambda enc: enc.to_string())
  40
  41 ui_str = """<ui>
  42           <menubar name="MenuBar">
  43             <menu name="FileMenu" action="File">
  44               <placeholder name="FileOps_2">
  45                 <menu name="FileEncodingMenu" action="FileEncoding">
  46                   <placeholder name="EncodingListHolder"/>
  47                   <separator/>
  48 %s
  49                 </menu>
  50               </placeholder>
  51             </menu>
  52           </menubar>
  53 </ui>
  54 """ % "\n".join(["<menuitem name=\"Encoding%i\" action=\"Encoding%i\"/>" % (i, i) for i in range(len(enclist))])
  55
  56 class EncodingWindowHelper:
  57     def __init__(self, plugin, window):
  58         self._window = window
  59         self._plugin = plugin
  60         self._insert_menu()
  61
  62     def deactivate(self):
  63         self._remove_menu()
  64         self._window = None
  65         self._plugin = None
  66         self._action_group = None
  67
  68     def _insert_menu(self):
  69         manager = self._window.get_ui_manager()
  70         self._action_group = Gtk.ActionGroup("EncodingPyPluginActions")
  71         self._action_group.add_actions([("FileEncoding", None, _("Encoding"))] + \
  72                                        [("Encoding%i" % i, None, enclist[i].to_string(), None,
  73                                          _("Reopen the document in")+" "+enclist[i].to_string(),
  74                                          functools.partial(self.reopen_document, enc=enclist[i])) \
  75                                          for i in range(len(enclist))])
  76         manager.insert_action_group(self._action_group, -1)
  77         self._ui_id = manager.add_ui_from_string(ui_str)
  78
  79     def _remove_menu(self):
  80         manager = self._window.get_ui_manager()
  81         manager.remove_ui(self._ui_id)
  82         manager.remove_action_group(self._action_group)
  83         manager.ensure_update()
  84
  85     def update_ui(self):
  86         self._action_group.set_sensitive(self._window.get_active_document() != None)
  87
  88     def reopen_document(self, action, _dummy = None, enc = None):
  89         doc = self._window.get_active_document()
  90         if doc and doc.get_location():
  91             line_pos = doc.get_iter_at_mark(doc.get_insert()).get_line()
  92             location = doc.get_location()
  93             doc.load(location, enc, line_pos+1, 1, False)
  94             # Can fix the 'document_loaded: assertion' if replace doc.load() to this two lines:
  95             #self._window.close_tab(self._window.get_active_tab())
  96             #self._window.create_tab_from_uri(uri, enc, line_pos+1, False, True)
  97
  98
  99 class EncodingPlugin(GObject.Object, Gedit.WindowActivatable):
 100
 101     window = GObject.property(type=Gedit.Window)
 102
 103     def __init__(self):
 104         GObject.Object.__init__(self)
 105         self._instances = {}
 106
 107     def do_activate(self):
 108         self._instances[self.window] = EncodingWindowHelper(self, self.window)
 109
 110     def do_deactivate(self):
 111         self._instances[self.window].deactivate()
 112         del self._instances[self.window]
 113
 114     def do_update_state(self):
 115         self._instances[self.window].update_ui()
 116