[gnome-builder] greeter: show 'no projects found' if search led to empty projects

[Christian Hergert <chergert src gnome org>]

commit 7e84d638184f3726337afcbc207429d8970e7ab2
Author: Guenther Wutz <info gunibert de>
Date:   Tue Jul 11 20:59:21 2017 +0200

    greeter: show 'no projects found' if search led to empty projects
    
    there is a empty screen if the search pattern is in no project.
    This patch shows a 'no projects found' screen for clarification.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784608
    
    Signed-off-by: Günther Wutz <info gunibert de>

 libide/greeter/ide-greeter-perspective.c  |   12 ++++++++++++
 libide/greeter/ide-greeter-perspective.ui |    9 +++++++++
 2 files changed, 21 insertions(+), 0 deletions(-)
---
diff --git a/libide/greeter/ide-greeter-perspective.c b/libide/greeter/ide-greeter-perspective.c
index 0b84a77..41ec4e9 100644
--- a/libide/greeter/ide-greeter-perspective.c
+++ b/libide/greeter/ide-greeter-perspective.c
@@ -68,6 +68,7 @@ struct _IdeGreeterPerspective
   DzlStateMachine      *state_machine;
   GtkScrolledWindow    *scrolled_window;
   DzlPriorityBox       *genesis_buttons;
+  DzlEmptyState        *no_projects_found;
 
   gint                  selected_count;
 };
@@ -204,6 +205,16 @@ ide_greeter_perspective_apply_filter_all (IdeGreeterPerspective *self)
   ide_greeter_perspective_apply_filter (self,
                                   self->other_projects_list_box,
                                   GTK_WIDGET (self->other_projects_container));
+
+  if (gtk_widget_get_visible (GTK_WIDGET (self->my_projects_container)) == FALSE &&
+      gtk_widget_get_visible (GTK_WIDGET (self->other_projects_container)) == FALSE)
+    {
+      gtk_widget_set_visible (GTK_WIDGET (self->no_projects_found), TRUE);
+    }
+  else
+    {
+      gtk_widget_set_visible (GTK_WIDGET (self->no_projects_found), FALSE);
+    }
 }
 
 static void
@@ -1208,6 +1219,7 @@ ide_greeter_perspective_class_init (IdeGreeterPerspectiveClass *klass)
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, titlebar);
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, top_stack);
   gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, viewport);
+  gtk_widget_class_bind_template_child (widget_class, IdeGreeterPerspective, no_projects_found);
 }
 
 static void
diff --git a/libide/greeter/ide-greeter-perspective.ui b/libide/greeter/ide-greeter-perspective.ui
index 478be18..dbdd10d 100644
--- a/libide/greeter/ide-greeter-perspective.ui
+++ b/libide/greeter/ide-greeter-perspective.ui
@@ -187,6 +187,15 @@
                                         </child>
                                       </object>
                                     </child>
+                                    <child>
+                                      <object class="DzlEmptyState" id="no_projects_found">
+                                        <property name="icon-name">org.gnome.Builder-symbolic</property>
+                                        <property name="title" translatable="yes">No projects 
found</property>
+                                        <property name="visible">false</property>
+                                        <property name="vexpand">true</property>
+                                        <property name="valign">center</property>
+                                      </object>
+                                    </child>
                                   </object>
                                 </child>
                               </object>