# -*- coding: utf-8 -*- # # __init__.py - Text size plugin # # Copyright (C) 2008 - Konstantin Mikhaylov # Copyright (C) 2009 - Wouter Bolsterlee # Copyright (C) 2010 - Ignacio Casal Quinteiro # Copyright (C) 2010 - Jesse van den Kieboom # Copyright (C) 2017 - Linux Mint team # # 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. from gi.repository import GObject, Gio, Gtk, Gdk, Xed from .documenthelper import DocumentHelper import gettext gettext.install("xed") MENU_PATH = "/MenuBar/ViewMenu/ViewOps_1" class TextSizePlugin(GObject.Object, Xed.WindowActivatable): __gtype_name__ = "TextSizePlugin" window = GObject.Property(type=Xed.Window) def __init__(self): GObject.Object.__init__(self) def do_activate(self): self._views = {} # Insert menu items self._insert_menu() # Insert document helpers for view in self.window.get_views(): self.add_document_helper(view) self.window.connect('tab-added', self.on_tab_added) self.window.connect('tab-removed', self.on_tab_removed) self._accel_group = Gtk.AccelGroup() self.window.add_accel_group(self._accel_group) self._proxy_callback_map = { 'LargerTextAction': self.on_larger_text_accel, 'SmallerTextAction': self.on_smaller_text_accel, 'NormalSizeAction': self.on_normal_size_accel } self._proxy_mappings = [] self._init_proxy_accels() self._accel_map_handler_id = Gtk.AccelMap.get().connect('changed', self.on_accel_map_changed) def _install_proxy(self, action): if not isinstance(action, Gtk.Action): action = self._action_group.get_action(str(action)) if not action: return entry = Gtk.AccelMap.lookup_entry(action.get_accel_path()) if not entry: return mapping = { Gdk.KEY_KP_Equal: Gdk.KEY_equal, Gdk.KEY_plus: Gdk.KEY_equal, Gdk.KEY_KP_Add: Gdk.KEY_equal, Gdk.KEY_KP_Subtract: Gdk.KEY_minus, Gdk.KEY_KP_0: Gdk.KEY_0, } for extra_accel in mapping.keys(): if mapping[extra_accel] == entry[1].accel_key: key = extra_accel mod = entry[1].accel_mods callback = self._proxy_callback_map[action.get_name()] self._accel_group.connect(key, mod, Gtk.AccelFlags.LOCKED, callback) self._proxy_mappings.append((key, mod)) def _init_proxy_accels(self): self._install_proxy('LargerTextAction') self._install_proxy('SmallerTextAction') self._install_proxy('NormalSizeAction') def do_deactivate(self): # Remove any installed menu items self._remove_menu() for view in self.window.get_views(): self.remove_document_helper(view) self.window.remove_accel_group(self._accel_group) Gtk.AccelMap.get().disconnect(self._accel_map_handler_id) self._accel_group = None self._action_group = None def _insert_menu(self): # Get the GtkUIManager manager = self.window.get_ui_manager() # Create a new action group self._action_group = Gtk.ActionGroup(name="XedTextSizePluginActions") self._action_group.add_actions([("LargerTextAction", None, _("_Larger Text"), "equal", None, self.on_larger_text_activate), ("SmallerTextAction", None, _("S_maller Text"), "minus", None, self.on_smaller_text_activate), ("NormalSizeAction", None, _("_Normal size"), "0", None, self.on_normal_size_activate)]) # Insert the action group manager.insert_action_group(self._action_group) self._ui_id = manager.new_merge_id(); manager.add_ui(self._ui_id, MENU_PATH, "LargerTextAction", "LargerTextAction", Gtk.UIManagerItemType.MENUITEM, False) manager.add_ui(self._ui_id, MENU_PATH, "SmallerTextAction", "SmallerTextAction", Gtk.UIManagerItemType.MENUITEM, False) manager.add_ui(self._ui_id, MENU_PATH, "NormalSizeAction", "NormalSizeAction", Gtk.UIManagerItemType.MENUITEM, False) def _remove_menu(self): # Get the GtkUIManager manager = self.window.get_ui_manager() # Remove the ui manager.remove_ui(self._ui_id) # Remove the action group manager.remove_action_group(self._action_group) # Make sure the manager updates manager.ensure_update() def do_update_state(self): self._action_group.set_sensitive(self.window.get_active_document() != None) def get_helper(self, view): if not hasattr(view, "textsize_document_helper"): return None return view.textsize_document_helper def add_document_helper(self, view): if self.get_helper(view) != None: return DocumentHelper(view) def remove_document_helper(self, view): helper = self.get_helper(view) if helper != None: helper.stop() def call_helper(self, cb): view = self.window.get_active_view() if view: cb(self.get_helper(view)) # Menu activate handlers def on_larger_text_activate(self, action, user_data=None): self.call_helper(lambda helper: helper.larger_text()) def on_smaller_text_activate(self, action, user_data=None): self.call_helper(lambda helper: helper.smaller_text()) def on_normal_size_activate(self, action, user_data=None): self.call_helper(lambda helper: helper.normal_size()) def on_larger_text_accel(self, group, accel, key, mod): self.call_helper(lambda helper: helper.larger_text()) def on_smaller_text_accel(self, group, accel, key, mod): self.call_helper(lambda helper: helper.smaller_text()) def on_normal_size_accel(self, group, accel, key, mod): self.call_helper(lambda helper: helper.normal_size()) def on_tab_added(self, window, tab): self.add_document_helper(tab.get_view()) def on_tab_removed(self, window, tab): self.remove_document_helper(tab.get_view()) def _remap_proxy(self, action): # Remove previous proxy if item in self._proxy_mappings: self._accel_group.disconnect_key(item[0], item[1]) self._install_proxy(action) def on_accel_map_changed(self, accelmap, path, key, mod): for action in self._action_group.list_actions(): if action.get_accel_path() == path: self._remap_proxy(action) return