[latexila/wip/use-tepl-tab] DocumentTab: make the document property read-only

[Sébastien Wilmet <swilmet src gnome org>]

commit 7dd3a14bce004f5526831de85515b912970db398
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Jun 23 18:01:35 2017 +0200

    DocumentTab: make the document property read-only

 src/document_tab.vala |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/src/document_tab.vala b/src/document_tab.vala
index 1bb30d0..4f4b7d0 100644
--- a/src/document_tab.vala
+++ b/src/document_tab.vala
@@ -22,7 +22,11 @@ using Gtk;
 public class DocumentTab : Grid
 {
     public DocumentView document_view { get; private set; }
-    public Document document { get; private set; }
+
+    public Document document
+    {
+        get { return document_view.buffer as Document; }
+    }
 
     private bool ask_if_externally_modified = false;
 
@@ -110,8 +114,7 @@ public class DocumentTab : Grid
 
     public DocumentTab ()
     {
-        document = new Document ();
-        document_view = new DocumentView (document);
+        document_view = new DocumentView (new Document ());
         initialize ();
     }
 
@@ -124,7 +127,6 @@ public class DocumentTab : Grid
     public DocumentTab.with_view (DocumentView view)
     {
         document_view = view;
-        document = (Document) view.buffer;
         initialize ();
     }