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evince_sync
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2010 Jose Aliste
# 2011 Benjamin Kellermann
# 2013 Randy Lai
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public Licence as published by the Free Software
# Foundation; either version 2 of the Licence, 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 Licence for more
# details.
#
# You should have received a copy of the GNU General Public Licence along with
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301, USA
import dbus, dbus.mainloop.glib
import argparse
import os.path
import traceback
import sys
import subprocess
import time
import re
import gobject
if sys.version_info >= (3, 0, 0):
from urllib.parse import quote, unquote
else:
from urllib import quote, unquote
class EvinceWindowProxy:
"""A Dbus proxy for an Evince Window."""
daemon = None
bus = None
RUNNING = range(2)
CLOSED = range(2)
EV_DAEMON_PATH = '/org/gnome/evince/Daemon'
EV_DAEMON_NAME = 'org.gnome.evince.Daemon'
EV_DAEMON_IFACE = 'org.gnome.evince.Daemon'
EVINCE_PATH = '/org/gnome/evince/Evince'
EVINCE_IFACE = 'org.gnome.evince.Application'
EV_WINDOW_IFACE = 'org.gnome.evince.Window'
def __init__(self, uri, editor, apawn=False, logger=None):
self._log = logger
self.uri = uri.replace(" ", "%20")
self.editor = editor
self.status = self.CLOSED
self.source_handler = None
self.dbus_name = ''
self._handler = None
try:
if EvinceWindowProxy.bus is None:
EvinceWindowProxy.bus = dbus.SessionBus()
if EvinceWindowProxy.daemon is None:
EvinceWindowProxy.daemon = EvinceWindowProxy.bus.get_object(self.EV_DAEMON_NAME,
self.EV_DAEMON_PATH,
follow_name_owner_changes=True)
EvinceWindowProxy.bus.add_signal_receiver(self._on_doc_loaded,
signal_name='DocumentLoaded',
dbus_interface=self.EV_WINDOW_IFACE,
sender_keyword='sender')
self._get_dbus_name(False)
except dbus.DBusException:
traceback.print_exc()
if self._log:
self._log.debug('Could not connect to the Evince Daemon')
def _on_doc_loaded(self, uri, **keyargs):
if uri == self.uri and self._handler is None:
self.handle_find_document_reply(keyargs['sender'])
def _get_dbus_name(self, spawn):
EvinceWindowProxy.daemon.FindDocument(self.uri, spawn,
reply_handler=self.handle_find_document_reply,
error_handler=self.handle_find_document_error,
dbus_interface = self.EV_DAEMON_IFACE)
def handle_find_document_error(self, error):
if self._log:
self._log.debug('FindDocument DBus call has failed')
def handle_find_document_reply(self, evince_name):
if self._handler is not None:
handler = self._handler
else:
handler = self.handle_get_window_list_reply
if evince_name != '':
self.dbus_name = evince_name
self.status = self.RUNNING
self.evince = EvinceWindowProxy.bus.get_object(self.dbus_name, self.EVINCE_PATH)
self.evince.GetWindowList(dbus_interface = self.EVINCE_IFACE,
reply_handler = handler,
error_handler = self.handle_get_window_list_error)
def handle_get_window_list_error (self, e):
if self._log:
self._log.debug("GetWindowList DBus call has failed")
def handle_get_window_list_reply (self, window_list):
if len(window_list) > 0:
window_obj = EvinceWindowProxy.bus.get_object(self.dbus_name, window_list[0])
self.window = dbus.Interface(window_obj,self.EV_WINDOW_IFACE)
self.window.connect_to_signal("SyncSource", self.on_sync_source)
else:
#That should never happen.
if self._log:
self._log.debug("GetWindowList returned empty list")
def on_sync_source(self, input_file, source_link, timestamp):
print(input_file + ':' + str(source_link[0]))
input_file = input_file.replace("%20", " ")
input_file = unquote(input_file)
print(type(input_file), input_file)
cmd = re.sub("%f", input_file.replace('file://', ''), self.editor)
cmd = re.sub("%l", str(source_link[0]), cmd)
print(cmd)
subprocess.call(cmd, shell=True)
if self.source_handler is not None:
self.source_handler(input_file, source_link, timestamp)
if __name__ == '__main__':
args = sys.argv
if len(args)==5 and args[1] == 'forward':
pdf = os.path.abspath(args[2]).replace(" ", "%20")
line = int(args[3])
tex = os.path.abspath(args[4])
try:
bus = dbus.SessionBus()
daemon = bus.get_object('org.gnome.evince.Daemon', '/org/gnome/evince/Daemon')
dbus_name = daemon.FindDocument('file://' + quote(pdf, safe="%/:=&?~#+!$,;'@()*[]"), \
True, dbus_interface='org.gnome.evince.Daemon')
window = bus.get_object(dbus_name, '/org/gnome/evince/Window/0')
time.sleep(0.2)
window.SyncView(tex, (line, 1), 0, dbus_interface='org.gnome.evince.Window')
except dbus.DBusException:
traceback.print_exc()
elif len(args)==4 and args[1] == 'backward':
pdf = os.path.abspath(args[2])
editor = args[3]
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
EvinceWindowProxy('file://' + pdf, editor, True)
loop = gobject.MainLoop()
loop.run()
else:
sys.stderr.write("Unknown evince command: %s.\n" % args[1])
sys.exit(1)