window: Inherit from HdyApplicationWindow

This commit makes the toplevel GcalWindow inherit from
HdyApplicationWindow instead of GtkApplicationWindow.

src/gui/gcal-window.c

@@ -88,7 +88,7 @@ typedef struct
 
 struct _GcalWindow
 {
-  GtkApplicationWindow parent;
+  HdyApplicationWindow parent;
 
   /* timeout ids */
   guint               notification_timeout;
@@ -179,7 +179,7 @@ enum
   gtk_application_set_accels_for_action (GTK_APPLICATION (app), action, tmp);\
 }
 
-G_DEFINE_TYPE (GcalWindow, gcal_window, GTK_TYPE_APPLICATION_WINDOW)
+G_DEFINE_TYPE (GcalWindow, gcal_window, HDY_TYPE_APPLICATION_WINDOW)
 
 static GParamSpec* properties[N_PROPS] = { NULL, };
 

src/gui/gcal-window.h

@@ -23,14 +23,14 @@
 #include "gcal-enums.h"
 #include "gcal-utils.h"
 
-#include <gtk/gtk.h>
+#include <handy.h>
 
 G_BEGIN_DECLS
 
 
 #define GCAL_TYPE_WINDOW                    (gcal_window_get_type ())
 
-G_DECLARE_FINAL_TYPE (GcalWindow, gcal_window, GCAL, WINDOW, GtkApplicationWindow)
+G_DECLARE_FINAL_TYPE (GcalWindow, gcal_window, GCAL, WINDOW, HdyApplicationWindow)
 
 GtkWidget*           gcal_window_new_with_date                  (GcalApplication     *app,
                                                                  GDateTime           *date);

src/gui/gcal-window.ui

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <requires lib="gtk+" version="3.14"/>
-  <template class="GcalWindow" parent="GtkApplicationWindow">
+  <template class="GcalWindow" parent="HdyApplicationWindow">
     <property name="window_position">center</property>
     <property name="default_width">800</property>
     <property name="default_height">600</property>
@@ -11,6 +11,10 @@
     <style>
       <class name="org-gnome-Calendar"/>
     </style>    
+    <child>
+      <object class="GtkBox">
+        <property name="visible">True</property>
+        <property name="orientation">vertical</property>
         <child>
           <object class="GtkOverlay" id="views_overlay">
             <property name="visible">True</property>
@@ -155,8 +159,11 @@
               </object>
             </child>
           </object>
+          <packing>
+            <property name="pack_type">end</property>
+          </packing>
         </child>
-    <child type="titlebar">
+        <child>
           <object class="GtkHeaderBar" id="header_bar">
             <property name="visible">True</property>
             <property name="show_close_button">True</property>
@@ -274,6 +281,8 @@
             </child>
           </object>
         </child>
+      </object>
+    </child>
   </template>
   <object class="GcalCalendarPopover" id="calendar_popover" />
   <object class="GcalQuickAddPopover" id="quick_add_popover">