Add more formats to ReadHEADmaster

Problem: Read currently does not open .cbz, .cbr(Comic book Archives - See
http://en.wikipedia.org/wiki/Comic_book_archive). Evince, the underlying document
displayer, supports .cbr and .cbz files, but needs some dependencies.
Support for .cbz/.cbr should be present.

Solution: Add dependencies/ import them if already existent and add support for
cbr/cbz formats. Unfortunately, cbr support requires rarfile which in turn
requires unrar or rar command line program to work. These dependencies can be
added later and Read should work properly with cbr files.

Fixes #3858

1 files changed, 13 insertions, 1 deletions

diff --git a/evinceadapter.py b/evinceadapter.py
index 5e648da..fb40640 100644
--- a/evinceadapter.py
+++ b/evinceadapter.py
@@ -2,6 +2,13 @@ from gettext import gettext as _
 import os
 import logging
 import time
+import zipfile
+
+try:
+    import rarfile
+except ImportError:
+    pass
+
 
 from gi.repository import GObject
 from gi.repository import Gtk
@@ -271,7 +278,12 @@ class EvinceViewer():
         if self._validate_min_version(3, 5, 92):
             # check version because does not work and crash with older evince
             doc = self._model.get_document()
-            if not doc.has_document_links():
+            try:
+                has_links = doc.has_document_links()
+            except AttributeError:
+                has_links = False
+
+            if not has_links:
                 logging.error('The pdf file does not have a index')
                 return False
             else: