[meld/ui-next] ui.statusbar: Fix default encoding and language display for empty files

[Kai Willadsen <kaiw src gnome org>]

commit b2504663edabf5439abe0029033dcfe30fe46382
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Mar 24 08:07:35 2019 +1000

    ui.statusbar: Fix default encoding and language display for empty files

 meld/meldbuffer.py   | 2 +-
 meld/ui/statusbar.py | 8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/meld/meldbuffer.py b/meld/meldbuffer.py
index d3dbd372..fdec5180 100644
--- a/meld/meldbuffer.py
+++ b/meld/meldbuffer.py
@@ -93,7 +93,7 @@ class MeldBufferData(GObject.GObject):
     encoding = GObject.Property(
         type=GtkSource.Encoding,
         nick="The file encoding of the linked GtkSourceFile",
-        default=None,
+        default=GtkSource.Encoding.get_utf8(),
     )
 
     def __init__(self):
diff --git a/meld/ui/statusbar.py b/meld/ui/statusbar.py
index e1158cd0..f1e065a9 100644
--- a/meld/ui/statusbar.py
+++ b/meld/ui/statusbar.py
@@ -111,7 +111,7 @@ class MeldStatusBar(Gtk.Statusbar):
     source_encoding = GObject.Property(
         type=GtkSource.Encoding,
         nick="The file encoding displayed in the status bar",
-        default=None,
+        default=GtkSource.Encoding.get_utf8(),
     )
 
     source_language = GObject.Property(
@@ -230,7 +230,8 @@ class MeldStatusBar(Gtk.Statusbar):
 
         button = MeldStatusMenuButton()
         self.bind_property(
-            'source-encoding', button, 'label', GObject.BindingFlags.DEFAULT,
+            'source-encoding', button, 'label',
+            GObject.BindingFlags.DEFAULT | GObject.BindingFlags.SYNC_CREATE,
             lambda binding, enc: selector.get_value_label(enc))
         button.set_popover(pop)
         button.show()
@@ -260,7 +261,8 @@ class MeldStatusBar(Gtk.Statusbar):
 
         button = MeldStatusMenuButton()
         self.bind_property(
-            'source-language', button, 'label', GObject.BindingFlags.DEFAULT,
+            'source-language', button, 'label',
+            GObject.BindingFlags.DEFAULT | GObject.BindingFlags.SYNC_CREATE,
             lambda binding, enc: selector.get_value_label(enc))
         button.set_popover(pop)
         button.show()