window: replace New Event with Today button

As Lapo rightfully explain, providing a button there for creating a new
event is way to prominently and might divert users of the intended click
on a cell behavior to create an event.
New event will be also accessible from the hamburger icon on the left of
the header-bar and Ctrl-N key shortcut.
Also as Lapo suggestion Today button fall better on the header bar than
between the navigation buttons.

data/ui/nav_bar.ui

@@ -37,28 +37,6 @@
             <property name="position">0</property>
           </packing>
         </child>
-        <child>
-          <object class="GtkButton" id="today_button">
-            <property name="visible">True</property>
-            <property name="can_focus">True</property>
-            <property name="focus_on_click">False</property>
-            <style>
-              <class name="nav-button"/>
-            </style>
-            <child>
-              <object class="GtkLabel" id="today_label">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
-                <property name="label" translatable="yes">Today</property>
-              </object>
-            </child>
-          </object>
-          <packing>
-            <property name="expand">False</property>
-            <property name="fill">True</property>
-            <property name="position">1</property>
-          </packing>
-        </child>
         <child>
           <object class="GtkButton" id="forward_button">
             <property name="visible">True</property>
@@ -78,7 +56,7 @@
           <packing>
             <property name="expand">False</property>
             <property name="fill">True</property>
-            <property name="position">2</property>
+            <property name="position">1</property>
           </packing>
         </child>
       </object>

src/gcal-nav-bar.c

@@ -26,7 +26,6 @@
 typedef struct
 {
   GtkWidget *back_button;
-  GtkWidget *today_button;
   GtkWidget *forward_button;
 
   GtkWidget *left_label;
@@ -89,7 +88,6 @@ gcal_nav_bar_class_init (GcalNavBarClass *klass)
 
   /* Bind internals widgets */
   gtk_widget_class_bind_template_child_private (widget_class, GcalNavBar, back_button);
-  gtk_widget_class_bind_template_child_private (widget_class, GcalNavBar, today_button);
   gtk_widget_class_bind_template_child_private (widget_class, GcalNavBar, forward_button);
   gtk_widget_class_bind_template_child_private (widget_class, GcalNavBar, left_label);
   gtk_widget_class_bind_template_child_private (widget_class, GcalNavBar, right_label);
@@ -176,15 +174,6 @@ gcal_nav_bar_get_prev_button (GcalNavBar *nav_bar)
   return priv->back_button;
 }
 
-GtkWidget*
-gcal_nav_bar_get_today_button (GcalNavBar *nav_bar)
-{
-  GcalNavBarPrivate *priv;
-
-  priv = gcal_nav_bar_get_instance_private (nav_bar);
-  return priv->today_button;
-}
-
 GtkWidget*
 gcal_nav_bar_get_next_button (GcalNavBar *nav_bar)
 {

src/gcal-nav-bar.h

@@ -50,8 +50,6 @@ GtkWidget*     gcal_nav_bar_new              (void);
 
 GtkWidget*     gcal_nav_bar_get_prev_button  (GcalNavBar *nav_bar);
 
-GtkWidget*     gcal_nav_bar_get_today_button (GcalNavBar *nav_bar);
-
 GtkWidget*     gcal_nav_bar_get_next_button  (GcalNavBar *nav_bar);
 
 G_END_DECLS

src/gcal-window.c

@@ -66,7 +66,7 @@ typedef struct
   GtkWidget           *popover; /* short-lived */
 
   /* header_bar widets */
-  GtkWidget           *new_button;
+  GtkWidget           *today_button;
   GtkWidget           *search_entry;
   GtkWidget           *views_switcher;
 
@@ -251,7 +251,7 @@ date_updated (GtkButton  *button,
 
   priv = gcal_window_get_instance_private (GCAL_WINDOW (user_data));
 
-  move_today = gcal_nav_bar_get_today_button (GCAL_NAV_BAR (priv->nav_bar)) == (GtkWidget*) button;
+  move_today = priv->today_button == (GtkWidget*) button;
   move_back = gcal_nav_bar_get_prev_button (GCAL_NAV_BAR (priv->nav_bar)) == (GtkWidget*) button;
 
   if (move_today)
@@ -887,11 +887,8 @@ gcal_window_constructed (GObject *object)
   priv->header_bar = gtk_header_bar_new ();
 
   /* header_bar: new */
-  priv->new_button = gtk_button_new_with_label (_("New Event"));
+  priv->today_button = gtk_button_new_with_label (_("Today"));
-  gtk_style_context_add_class (
+  gtk_header_bar_pack_start (GTK_HEADER_BAR (priv->header_bar), priv->today_button);
-      gtk_widget_get_style_context (priv->new_button),
-      "suggested-action");
-  gtk_header_bar_pack_start (GTK_HEADER_BAR (priv->header_bar), priv->new_button);
 
   priv->views_switcher = gtk_stack_switcher_new ();
   g_object_ref_sink (priv->views_switcher);
@@ -1011,8 +1008,6 @@ gcal_window_constructed (GObject *object)
   g_signal_connect (object, "key-press-event",
                     G_CALLBACK (key_pressed), object);
 
-  g_signal_connect_swapped (priv->new_button, "clicked",
-                            G_CALLBACK (gcal_window_new_event), object);
   for (i = 0; i < 4; ++i)
     {
       if (priv->views[i] != NULL)
@@ -1031,10 +1026,12 @@ gcal_window_constructed (GObject *object)
 
   g_signal_connect (priv->views_stack, "notify::visible-child",
                     G_CALLBACK (view_changed), object);
+
+  g_signal_connect (priv->today_button, "clicked",
+                    G_CALLBACK (date_updated), object);
+
   g_signal_connect (gcal_nav_bar_get_prev_button (GCAL_NAV_BAR (priv->nav_bar)),
                     "clicked", G_CALLBACK (date_updated), object);
-  g_signal_connect (gcal_nav_bar_get_today_button (GCAL_NAV_BAR (priv->nav_bar)),
-                    "clicked", G_CALLBACK (date_updated), object);
   g_signal_connect (gcal_nav_bar_get_next_button (GCAL_NAV_BAR (priv->nav_bar)),
                     "clicked", G_CALLBACK (date_updated), object);
 }
@@ -1177,7 +1174,7 @@ gcal_window_search_toggled (GObject    *object,
       g_debug ("Entering search mode");
 
       /* update headder_bar widget */
-      gtk_widget_hide (priv->new_button);
+      gtk_widget_hide (priv->today_button);
       gtk_header_bar_set_custom_title (GTK_HEADER_BAR (priv->header_bar),
                                        NULL);
       /* _prepare_for_search */
@@ -1186,7 +1183,7 @@ gcal_window_search_toggled (GObject    *object,
     {
       g_debug ("Leaving search mode");
       /* update header_bar */
-      gtk_widget_show (priv->new_button);
+      gtk_widget_show (priv->today_button);
       gtk_header_bar_set_custom_title (GTK_HEADER_BAR (priv->header_bar),
                                        priv->views_switcher);
       /* return to last active_view */