[egg-list-box] add option to activate on double click

[Guillaume Desmottes <gdesmott src gnome org>]

commit 6b6963465e576012015eb70198599ad5aea81519
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Fri Jun 1 11:28:57 2012 +0200

    add option to activate on double click

 egg-list-box.vala |   15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/egg-list-box.vala b/egg-list-box.vala
index 5f61247..c7f03ba 100644
--- a/egg-list-box.vala
+++ b/egg-list-box.vala
@@ -47,6 +47,7 @@ public class Egg.ListBox : Container {
   private unowned ChildInfo active_child;
   private SelectionMode selection_mode;
   private Adjustment? adjustment;
+  private bool activate_single_click;
 
   construct {
     set_can_focus (true);
@@ -54,6 +55,7 @@ public class Egg.ListBox : Container {
     set_redraw_on_allocate (true);
 
     selection_mode = SelectionMode.SINGLE;
+    activate_single_click = true;
 
     children = new Sequence<ChildInfo>();
     child_hash = new HashTable<unowned Widget, unowned ChildInfo> (GLib.direct_hash, GLib.direct_equal);
@@ -154,6 +156,10 @@ public class Egg.ListBox : Container {
 
   }
 
+  public void set_activate_on_single_click (bool single) {
+    activate_single_click = single;
+  }
+
   /****** Implementation ***********/
 
   private int do_sort (ChildInfo a, ChildInfo b) {
@@ -428,6 +434,10 @@ public class Egg.ListBox : Container {
         active_child = child;
         active_child_active = true;
         queue_draw ();
+
+        if (event.type == Gdk.EventType.2BUTTON_PRESS &&
+            !activate_single_click && child.widget != null)
+          child_activated (child.widget);
       }
 
       /* TODO: Should mark as active while down, and handle grab breaks */
@@ -438,7 +448,10 @@ public class Egg.ListBox : Container {
   public override bool button_release_event (Gdk.EventButton event) {
     if (event.button == 1) {
       if (active_child != null && active_child_active)
-        select_and_activate (active_child);
+        if (activate_single_click)
+          select_and_activate (active_child);
+        else
+          update_selected (active_child);
       active_child = null;
       active_child_active = false;
       queue_draw ();