open_as_root.py

# GPL v3

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import GObject, Gtk, Gedit, Gio

class OpenAsRootAppActivatable(GObject.Object, Gedit.AppActivatable):
	app = GObject.property(type=Gedit.App)
	__gtype_name__ = 'OpenAsRootAppActivatable'
	
	def __init__(self):
		GObject.Object.__init__(self)
	
	def do_activate(self):
		self.menu_ext = self.extend_menu('file-section')
		self.menu_item = Gio.MenuItem.new(_("Edit as administrator…"), 'win.open_as_root')
		self.menu_ext.append_menu_item(self.menu_item)
	
	def do_deactivate(self):
		self.menu_item = None
		self.menu_ext = None

	############################################################################
################################################################################

class OpenAsRootWindowActivatable(GObject.Object, Gedit.WindowActivatable):
	window = GObject.property(type=Gedit.Window)
	__gtype_name__ = 'OpenAsRootWindowActivatable'
	
	def __init__(self):
		GObject.Object.__init__(self)
	
	def do_activate(self):
		# Defining the action which was set to the menu item earlier.
		action = Gio.SimpleAction(name='open_as_root')
		action.connect('activate', self.action_cb)
		self.window.add_action(action)
		
		self.window.connect('active-tab-changed', self.update_item_state)
		self.window.connect('active-tab-state-changed', self.update_item_state)
	
	def do_deactivate(self):
		pass
	
	def do_update_state(self):
		pass
	
	def update_item_state(self, *args):
		state = self.get_item_state()
		self.window.lookup_action('open_as_root').set_enabled(state)

	def get_item_state(self, *args):
		if self.window.get_active_document() is None:
			# if there is no document, we disable the action, so we don't get NoneException
			return False
		file_location = self.window.get_active_document().get_file().get_location()
		if file_location is None:
			# if the document isn't saved, we disable the action, so we don't get NoneException
			return False
		elif 'admin' in file_location.get_uri_scheme():
			# if the document is already opened as root, we disable the action too
			return False
		else:
			return True
	
	def action_cb(self, action, data):
		doc = self.window.get_active_document()
		normal_uri = doc.get_file().get_location().get_uri()
		admin_uri = normal_uri.replace('file://', 'admin://', 1)
		gfile = Gio.File.new_for_uri(admin_uri)
		self.window.create_tab_from_location(gfile, None, 0, 0, False, True)

	############################################################################
################################################################################