[gnome-control-center/wip/gbsneto/list-layout: 15/15] window: make the sidelist and first headerbar horizontally equal

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 76f5c4120bb4de14af2f329518fad7a6e10e8b28
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sun May 22 14:25:06 2016 -0300

    window: make the sidelist and first headerbar horizontally equal
    
    The first headerbar and the sidelist should stay synchronized,
    and this commit does so by setting the width request of the
    headerbar to the allocated width of the sidelist.

 shell/cc-window.c |   10 ++++++++++
 shell/window.ui   |    1 +
 2 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/shell/cc-window.c b/shell/cc-window.c
index 78a8f53..fba6613 100644
--- a/shell/cc-window.c
+++ b/shell/cc-window.c
@@ -887,6 +887,15 @@ stack_page_notify_cb (GtkStack     *stack,
     }
 }
 
+static void
+sidelist_size_allocate_cb (GtkWidget    *box,
+                           GdkRectangle *allocation,
+                           CcWindow     *self)
+{
+  /* Keep the sidelist and the first headerbar synchronized */
+  gtk_widget_set_size_request (self->header, allocation->width, -1);
+}
+
 /* CcShell implementation */
 static void
 _shell_embed_widget_in_header (CcShell      *shell,
@@ -1184,6 +1193,7 @@ cc_window_class_init (CcWindowClass *klass)
   gtk_widget_class_bind_template_callback (widget_class, gdk_window_set_cb);
   gtk_widget_class_bind_template_callback (widget_class, search_entry_changed_cb);
   gtk_widget_class_bind_template_callback (widget_class, search_entry_key_press_event_cb);
+  gtk_widget_class_bind_template_callback (widget_class, sidelist_size_allocate_cb);
   gtk_widget_class_bind_template_callback (widget_class, stack_page_notify_cb);
   gtk_widget_class_bind_template_callback (widget_class, window_map_event_cb);
 }
diff --git a/shell/window.ui b/shell/window.ui
index e020bec..967d132 100644
--- a/shell/window.ui
+++ b/shell/window.ui
@@ -17,6 +17,7 @@
             <property name="can_focus">False</property>
             <property name="hexpand">False</property>
             <property name="orientation">vertical</property>
+            <signal name="size-allocate" handler="sidelist_size_allocate_cb" object="CcWindow" swapped="no" 
/>
             <child>
               <object class="GtkSearchBar" id="search_bar">
                 <property name="visible">True</property>