[gtranslator] XML language syntax for the source view

[Daniel Garcia Moreno <danigm src gnome org>]

commit 0e2ea579a668052b0026d9822b7a87aa644323e6
Author: Daniel García Moreno <dani danigm net>
Date:   Sun Feb 3 20:52:00 2019 +0100

    XML language syntax for the source view
    
    See #50

 src/gtr-view.c | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/src/gtr-view.c b/src/gtr-view.c
index bc91a716..1db3e113 100644
--- a/src/gtr-view.c
+++ b/src/gtr-view.c
@@ -336,14 +336,22 @@ gtr_view_enable_visible_whitespace (GtrView * view, gboolean enable)
   GtkSourceView *source;
   GtkSourceSpaceDrawer *drawer;
   GtkSourceBuffer *buffer;
+  GtkSourceLanguageManager *manager;
+  GtkSourceLanguage *lang;
 
   g_return_if_fail (GTR_IS_VIEW (view));
 
+  manager = gtk_source_language_manager_get_default ();
+  lang = gtk_source_language_manager_guess_language (manager, "file.xml", NULL);
+
   source = GTK_SOURCE_VIEW (view);
   drawer = gtk_source_view_get_space_drawer (source);
   gtk_source_space_drawer_set_enable_matrix (drawer, TRUE);
   buffer = GTK_SOURCE_BUFFER (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)));
   gtk_source_buffer_set_implicit_trailing_newline (buffer, FALSE);
+  gtk_source_buffer_set_language (buffer, lang);
+
+  gtk_source_buffer_set_highlight_syntax (buffer, TRUE);
 
   if (enable)
     gtk_source_space_drawer_set_types_for_locations (drawer,