[gitg] Add selectable enabled property

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 52f39454eedff84d4aee9f473b82c78f0f8b2876
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Fri Aug 7 09:02:51 2015 +0200

    Add selectable enabled property

 gitg/gitg-dash-view.vala             |   10 ++++++++++
 gitg/gitg-window.vala                |    8 ++++++++
 gitg/history/gitg-history.vala       |    5 +++++
 libgitg-ext/gitg-ext-selectable.vala |    1 +
 4 files changed, 24 insertions(+), 0 deletions(-)
---
diff --git a/gitg/gitg-dash-view.vala b/gitg/gitg-dash-view.vala
index 9ac3073..982bd0b 100644
--- a/gitg/gitg-dash-view.vala
+++ b/gitg/gitg-dash-view.vala
@@ -76,6 +76,16 @@ class DashView : Gtk.Grid, GitgExt.UIElement, GitgExt.Activity, GitgExt.Selectab
                }
        }
 
+       public bool has_repositories
+       {
+               get { return d_repository_list_box.get_children().length() != 0; }
+       }
+
+       public bool selectable_enabled
+       {
+               get { return has_repositories; }
+       }
+
        public string display_name
        {
                owned get { return "Dash"; }
diff --git a/gitg/gitg-window.vala b/gitg/gitg-window.vala
index 4e72758..3e098de 100644
--- a/gitg/gitg-window.vala
+++ b/gitg/gitg-window.vala
@@ -34,6 +34,7 @@ public class Window : Gtk.ApplicationWindow, GitgExt.Application, Initable
        private Gtk.Widget? d_select_actions;
 
        private Binding? d_selectable_mode_binding;
+       private Binding? d_selectable_enabled_binding;
        private GitgExt.SelectionMode d_selectable_mode;
 
        private UIElements<GitgExt.Activity> d_activities;
@@ -538,6 +539,7 @@ public class Window : Gtk.ApplicationWindow, GitgExt.Application, Initable
                d_select_button.visible = (selectable != null);
 
                d_selectable_mode_binding = null;
+               d_selectable_enabled_binding = null;
 
                if (selectable != null)
                {
@@ -545,6 +547,12 @@ public class Window : Gtk.ApplicationWindow, GitgExt.Application, Initable
                                                                             this,
                                                                             "selectable-mode",
                                                                             BindingFlags.DEFAULT);
+
+                       d_selectable_enabled_binding = selectable.bind_property("selectable-enabled",
+                                                                               d_select_button,
+                                                                               "sensitive",
+                                                                               BindingFlags.DEFAULT |
+                                                                               BindingFlags.SYNC_CREATE);
                }
                else
                {
diff --git a/gitg/history/gitg-history.vala b/gitg/history/gitg-history.vala
index a1141f3..5325951 100644
--- a/gitg/history/gitg-history.vala
+++ b/gitg/history/gitg-history.vala
@@ -802,6 +802,11 @@ namespace GitgHistory
                        get; set;
                }
 
+               public bool selectable_enabled
+               {
+                       get { return true; }
+               }
+
                private void add_commit_action(Gee.LinkedList<GitgExt.CommitAction> actions,
                                               GitgExt.CommitAction?                action)
                {
diff --git a/libgitg-ext/gitg-ext-selectable.vala b/libgitg-ext/gitg-ext-selectable.vala
index 54ed159..ad01206 100644
--- a/libgitg-ext/gitg-ext-selectable.vala
+++ b/libgitg-ext/gitg-ext-selectable.vala
@@ -35,6 +35,7 @@ public enum SelectionMode
 public interface Selectable : Object, Activity
 {
        public abstract SelectionMode selectable_mode { get; set; }
+       public abstract bool selectable_enabled { get; }
 
        public abstract Gtk.Widget? action_widget { owned get; }