[gnome-builder] rst preview: fix include files not found

[Sébastien Lafargue <slafargue src gnome org>]

commit 5e7e0672817e5d02b58820a62c178b52638bb929
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Wed Mar 15 17:18:19 2017 +0100

    rst preview: fix include files not found

 .../html-preview/html_preview_plugin/__init__.py   |   18 ++++++++++++++----
 1 files changed, 14 insertions(+), 4 deletions(-)
---
diff --git a/plugins/html-preview/html_preview_plugin/__init__.py 
b/plugins/html-preview/html_preview_plugin/__init__.py
index 6f6cbe5..480ac31 100644
--- a/plugins/html-preview/html_preview_plugin/__init__.py
+++ b/plugins/html-preview/html_preview_plugin/__init__.py
@@ -21,6 +21,7 @@
 
 import gi
 import os
+import locale
 
 gi.require_version('Gtk', '3.0')
 gi.require_version('Ide', '1.0')
@@ -34,6 +35,11 @@ from gi.repository import Ide
 from gi.repository import WebKit2
 from gi.repository import Peas
 
+try:
+    locale.setlocale(locale.LC_ALL, '')
+except:
+    pass
+
 can_preview_rst = True
 
 try:
@@ -185,11 +191,15 @@ class HtmlPreviewView(Ide.LayoutView):
 </html>
 """ % params
 
-    def get_rst(self, text):
-        return publish_string(text, writer_name='html5')
+    def get_rst(self, text, path):
+        return publish_string(text,
+                              writer_name='html5',
+                              source_path=path,
+                              destination_path=path)
 
     def reload(self):
-        base_uri = self.document.get_file().get_file().get_uri()
+        file = self.document.get_file().get_file()
+        base_uri = file.get_uri()
 
         begin, end = self.document.get_bounds()
         text = self.document.get_text(begin, end, True)
@@ -197,7 +207,7 @@ class HtmlPreviewView(Ide.LayoutView):
         if self.markdown:
             text = self.get_markdown(text)
         elif self.rst:
-            text = self.get_rst(text).decode("utf-8")
+            text = self.get_rst(text, file.get_path()).decode("utf-8")
 
         self.webview.load_html(text, base_uri)