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Scripts for connecting LyX with evince for backward/forward search

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The scripts have been initially developed by Benjamin Kellermann (2011)
as a derivation of gedit-synctex-plugin by José Aliste
(https://github.com/jaliste/gedit-synctex-plugin, 2010) and published on
https://ubuntuforums.org/showthread.php?t=1716268.

The work here is based on a further derivation of this work for Sublime
Text LaTeX Tools
(https://github.com/SublimeText/LaTeXTools/tree/master/evince).

Adaptations for the use with LyX as well as the initial translation of
the evince_sync bash script to python have been done by myself.

The python code (particularly evince_sync_lyx) needs audit!
This commit is contained in:
Juergen Spitzmueller 2017-07-18 19:08:44 +02:00
parent 5078448111
commit e79782c4cc
4 changed files with 387 additions and 0 deletions
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49
3rdparty/evince_sync/README vendored Normal file
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===============================================
FORWARD AND BACKWARD SEARCH WITH LYX AND EVINCE
===============================================
For the forward and backwards (reverse) search feature in general, please refer to
Help > Additional Features, sec. 5.6 and 5.7 in LyX.
SETUP
=====
* Install the files evince_sync_lyx, evince_forward_search and evince_backward_search
in your binary directory (e.g., ~/bin).
* Assure all three files are executable.
* In LyX, go to Tools > Preferences ... > File Handling > File Formats > Format, select
the appropriate output format [e.g., PDF (pdflatex)], set "Viewer" to "Custom" and
enter evince_sync_lyx as custom viewer (in the field right to the combo box).
Hit "Apply" and "Save".
* Go to Tools > Preferences ... > Output > General and enter the following PDF command
to Forward Search: evince_forward_search "$$o" $$n "$$f"
Again, hit "Apply" and "Save".
Forward and Backward search should work now (backward search from within evince is triggered
by <Shift> + <Left Click>).
HISTORY
=======
The scripts have been initially developed by Benjamin Kellermann (2011) as a derivation
of gedit-synctex-plugin by José Aliste (https://github.com/jaliste/gedit-synctex-plugin,
2010) and published on https://ubuntuforums.org/showthread.php?t=1716268.
The work is based on a further derivation of this work for Sublime Text LaTeX Tools
(https://github.com/SublimeText/LaTeXTools/tree/master/evince).
Adaptations for the use with LyX have been done by Jürgen Spitzmüller <spitz@lyx.org>
in 2017.
CONTACT
=======
Please send bug reports and suggestions (related to LyX-evince synchronization) to
lyx-devel@lists.lyx.org.
Usage questions should be addressed at lyx-users@lists.lyx.org.

212
3rdparty/evince_sync/evince_backward_search vendored Executable file
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2010 Jose Aliste <jose.aliste@gmail.com>
# 2011 Benjamin Kellermann <Benjamin.Kellermann@tu-dresden.de>
#
# Modified for the use with LyX by Juergen Spitzmueller <spitz@lyx.org> 2017.
#
# 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
# Incorporates fixes from http://ubuntuforums.org/showthread.php?t=1716268
from __future__ import print_function
import dbus
import subprocess
import time
import sys
import traceback
if sys.version_info < (3,):
from urllib import unquote as urllib_unquote
from urllib import quote
def unquote(s):
# This is to deal with source files with non-ascii names
# We get url-quoted UTF-8 from dbus; convert to url-quoted ascii
# and then unquote. If you don't first convert ot ascii, it fails.
# It's a bit magical, but it seems to work
return urllib_unquote(s.encode('ascii'))
else:
from urllib.parse import unquote
from urllib.parse import quote
RUNNING, 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"
class EvinceWindowProxy:
"""A DBus proxy for an Evince Window."""
daemon = None
bus = None
def __init__(self, uri, editor, spawn=False, logger=None):
self._log = logger
self.uri = uri
self.uri_unquoted = unquote(uri)
self.editor = editor
self.status = 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(
EV_DAEMON_NAME,
EV_DAEMON_PATH,
follow_name_owner_changes=True
)
EvinceWindowProxy.bus.add_signal_receiver(
self._on_doc_loaded,
signal_name='DocumentLoaded',
dbus_interface=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 (
unquote(uri) == self.uri_unquoted 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=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 = RUNNING
self.evince = EvinceWindowProxy.bus.get_object(
self.dbus_name, EVINCE_PATH
)
self.evince.GetWindowList(
dbus_interface=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, EV_WINDOW_IFACE)
self.window.connect_to_signal("SyncSource", self.on_sync_source)
else:
# This should never happen.
if self._log:
self._log.debug("GetWindowList returned empty list")
def on_sync_source(self, input_file, source_link, _):
input_file = unquote(input_file)
# Remove the "file://" prefix
input_file = input_file[7:]
#print("File: " + input_file + ":" + str(source_link[0]))
cmd = self.editor.replace('%f', input_file)
cmd = cmd.replace('%l', str(source_link[0]))
#print(cmd)
subprocess.call(cmd, shell=True)
if self.source_handler is not None:
self.source_handler(input_file, source_link, time)
# This file offers backward search in any editor.
# evince_dbus pdf_file line_source input_file
if __name__ == '__main__':
import dbus.mainloop.glib
import sys
import os
def print_usage():
print("""Usage:
evince_backward_search pdf_file "editorcmd %f %l"'
%f ... TeX-file to load
%l ... line to jump to
E.g.:
evince_backward_search somepdf.pdf "gvim --servername somepdf --remote-silent '+%l<Enter>' %f"
evince_backward_search somepdf.pdf "emacsclient -a emacs --no-wait +%l %f"
evince_backward_search somepdf.pdf "scite %f '-goto:%l'"
evince_backward_search somepdf.pdf "lyxclient -g %f %l"
evince_backward_search somepdf.pdf "kate --use --line %l"
evince_backward_search somepdf.pdf "kile --line %l" """)
sys.exit(1)
if len(sys.argv) != 3:
print_usage()
pdf_file = os.path.abspath(sys.argv[1])
if not os.path.isfile(pdf_file):
print_usage()
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
EvinceWindowProxy(
# The PDF file name MUST be URI-encoded
# RFC 1738: unreserved = alpha | digit | safe | extra
# safe = "$" | "-" | "_" | "." | "+"
# extra = "!" | "*" | "'" | "(" | ")" | ","
'file://' + quote(pdf_file, "/$+!*'(),@=~"),
sys.argv[2],
True
)
try:
import gobject
loop = gobject.MainLoop()
except ImportError:
from gi.repository import GLib
loop = GLib.MainLoop()
loop.run()
# ex:ts=4:et:

72
3rdparty/evince_sync/evince_forward_search vendored Executable file
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2010 Jose Aliste <jose.aliste@gmail.com>
# 2011 Benjamin Kellermann <Benjamin.Kellermann@tu-dresden.de>
#
# 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
# This file offers forward search for evince.
from __future__ import print_function
import dbus
import sys
import os
import traceback
if sys.version_info < (3,):
from urllib import quote
else:
from urllib.parse import quote
if __name__ == '__main__':
def print_usage():
print('Usage: evince_forward_search pdf_file line_number tex_file')
sys.exit(1)
if len(sys.argv) != 4:
print_usage()
try:
line_number = int(sys.argv[2])
except ValueError:
print_usage()
pdf_file = os.path.abspath(sys.argv[1])
line = int(sys.argv[2])
tex_file = os.path.abspath(sys.argv[3])
try:
bus = dbus.SessionBus()
daemon = bus.get_object(
'org.gnome.evince.Daemon', '/org/gnome/evince/Daemon'
)
dbus_name = daemon.FindDocument(
# The PDF file name MUST be URI-encoded
# RFC 1738: unreserved = alpha | digit | safe | extra
# safe = "$" | "-" | "_" | "." | "+"
# extra = "!" | "*" | "'" | "(" | ")" | ","
'file://' + quote(pdf_file, "/$+!*'(),@=~"),
True,
dbus_interface="org.gnome.evince.Daemon"
)
window = bus.get_object(dbus_name, '/org/gnome/evince/Window/0')
window.SyncView(
tex_file,
(line_number, 1),
0, # GDK_CURRENT_TIME constant
dbus_interface="org.gnome.evince.Window"
)
except dbus.DBusException:
traceback.print_exc()

54
3rdparty/evince_sync/evince_sync_lyx vendored Executable file
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#!/usr/bin/python
# Copyright (C) 2010 Jose Aliste <jose.aliste@gmail.com>
# 2011 Benjamin Kellermann <Benjamin.Kellermann@tu-dresden.de>
#
# Translated from Bash to Python by Juergen Spitzmueller <spitz@lyx.org> 2017.
#
# 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 sys, os.path
from subprocess import Popen, call
editor_cmd = "lyxclient -g %f %l"
def print_usage():
print("Usage: evince_sync_lyx pdf_file")
sys.exit(1)
if len(sys.argv) != 2:
print_usage()
pdf_file = os.path.abspath(sys.argv[1])
if not os.path.isfile(pdf_file):
print_usage()
synctex_file, ext = os.path.splitext(pdf_file)
synctex_file += ".synctex.gz"
SyncTeX = False
if os.path.isfile(synctex_file):
bsproc = Popen(["evince_backward_search", pdf_file, editor_cmd])
SyncTeX = True
vproc = Popen(['evince', pdf_file])
vproc.wait()
if SyncTeX:
bsproc.terminate()