[gnome-builder/wip/chergert/layout] project-tree: activate on single click

[Christian Hergert <chergert src gnome org>]

commit 3e7cc321cddccdd7e04abcdee5cd4ba7a54a7288
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jul 12 16:57:36 2017 -0700

    project-tree: activate on single click
    
    We are trying to feel more like a ListBox here, so we should be
    consistent with click actions across our navigation widgets.

 plugins/project-tree/gb-project-tree.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/plugins/project-tree/gb-project-tree.c b/plugins/project-tree/gb-project-tree.c
index fae1acc..a1782a9 100644
--- a/plugins/project-tree/gb-project-tree.c
+++ b/plugins/project-tree/gb-project-tree.c
@@ -314,12 +314,11 @@ gb_project_tree_class_init (GbProjectTreeClass *klass)
 static void
 gb_project_tree_init (GbProjectTree *self)
 {
-  GtkStyleContext *style_context;
   DzlTreeBuilder *builder;
   GMenu *menu;
 
-  style_context = gtk_widget_get_style_context (GTK_WIDGET (self));
-  gtk_style_context_add_class (style_context, "project-tree");
+  dzl_gtk_widget_add_style_class (GTK_WIDGET (self), "project-tree");
+  gtk_tree_view_set_activate_on_single_click (GTK_TREE_VIEW (self), TRUE);
 
   self->settings = g_settings_new ("org.gnome.builder.project-tree");