[gnome-builder] greeter: add initial-state splash when no projects are found

[Christian Hergert <chergert src gnome org>]

commit a894cf28998b635e3d8c9ba21870b0978b9155d4
Author: Christian Hergert <chergert redhat com>
Date:   Tue Mar 1 18:36:51 2016 -0800

    greeter: add initial-state splash when no projects are found
    
    This could happen on the first load of Builder, or when project-mining is
    disabled and no projects have previously been opened.

 data/ui/ide-greeter-perspective.ui       |   11 +++++++++++
 libide/greeter/ide-greeter-perspective.c |    8 ++++++++
 2 files changed, 19 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/ide-greeter-perspective.ui b/data/ui/ide-greeter-perspective.ui
index cd8e6c8..6bc3f1e 100644
--- a/data/ui/ide-greeter-perspective.ui
+++ b/data/ui/ide-greeter-perspective.ui
@@ -25,6 +25,17 @@
             <property name="expand">true</property>
             <property name="visible">true</property>
             <child>
+              <object class="EggEmptyState">
+                <property 
name="resource">/org/gnome/builder/icons/scalable/apps/builder-symbolic.svg</property>
+                <property name="subtitle" translatable="yes">Why not &lt;a 
href="action://app.new-project"&gt;create a new project&lt;/a&gt;?</property>
+                <property name="title" translatable="yes">No projects found</property>
+                <property name="visible">true</property>
+              </object>
+              <packing>
+                <property name="name">empty-state</property>
+              </packing>
+            </child>
+            <child>
               <object class="GtkBox">
                 <property name="orientation">vertical</property>
                 <property name="visible">true</property>
diff --git a/libide/greeter/ide-greeter-perspective.c b/libide/greeter/ide-greeter-perspective.c
index aeb12f1..2584616 100644
--- a/libide/greeter/ide-greeter-perspective.c
+++ b/libide/greeter/ide-greeter-perspective.c
@@ -43,6 +43,7 @@ struct _IdeGreeterPerspective
   IdePatternSpec       *pattern_spec;
   GActionMap           *actions;
 
+  GtkStack             *stack;
   GtkViewport          *viewport;
   GtkWidget            *titlebar;
   GtkBox               *my_projects_container;
@@ -306,6 +307,12 @@ recent_projects_items_changed (IdeGreeterPerspective *self,
   g_assert (G_IS_LIST_MODEL (list_model));
   g_assert (IDE_IS_RECENT_PROJECTS (list_model));
 
+  if (g_list_model_get_n_items (list_model) > 0)
+    {
+      if (ide_str_equal0 ("empty-state", gtk_stack_get_visible_child_name (self->stack)))
+        gtk_stack_set_visible_child_name (self->stack, "projects");
+    }
+
   for (i = 0; i < added; i++)
     {
       IdeProjectInfo *project_info;
@@ -638,6 +645,7 @@ ide_greeter_perspective_class_init (IdeGreeterPerspectiveClass *klass)
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, remove_button);
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, search_entry);
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, scrolled_window);
+  gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, stack);
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, state_machine);
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, viewport);
 }