[gnome-control-center/wip/garnacho/wayland-tablet: 1/31] shell: Add cc_panel_get_title_widget() vmethod

[Carlos Garnacho <carlosg src gnome org>]

commit c7e185b957b62cea1c6116b8e48f11f494f40cf5
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jun 6 12:59:01 2016 +0200

    shell: Add cc_panel_get_title_widget() vmethod
    
    So the panel implementations will be able to set a custom widget
    in the shell headerbar. It defaults to NULL, so by default headerbars
    set the plain label with the panel title.

 shell/cc-panel.c |   11 +++++++++++
 shell/cc-panel.h |    4 ++++
 2 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/shell/cc-panel.c b/shell/cc-panel.c
index 7765a4c..1042397 100644
--- a/shell/cc-panel.c
+++ b/shell/cc-panel.c
@@ -280,3 +280,14 @@ cc_panel_get_help_uri (CcPanel *panel)
 
   return NULL;
 }
+
+GtkWidget *
+cc_panel_get_title_widget (CcPanel *panel)
+{
+  CcPanelClass *class = CC_PANEL_GET_CLASS (panel);
+
+  if (class->get_title_widget)
+    return class->get_title_widget (panel);
+
+  return NULL;
+}
diff --git a/shell/cc-panel.h b/shell/cc-panel.h
index ef77e91..6879460 100644
--- a/shell/cc-panel.h
+++ b/shell/cc-panel.h
@@ -76,6 +76,8 @@ struct _CcPanelClass
 
   GPermission * (* get_permission) (CcPanel *panel);
   const char  * (* get_help_uri)   (CcPanel *panel);
+
+  GtkWidget *   (* get_title_widget) (CcPanel *panel);
 };
 
 GType        cc_panel_get_type         (void);
@@ -86,6 +88,8 @@ GPermission *cc_panel_get_permission   (CcPanel     *panel);
 
 const char  *cc_panel_get_help_uri     (CcPanel     *panel);
 
+GtkWidget   *cc_panel_get_title_widget (CcPanel     *panel);
+
 G_END_DECLS
 
 #endif /* __CC_PANEL_H */