[gnome-boxes] Selection mode should be single-click

[Marc-Andre Lureau <malureau src gnome org>]

commit 337eed2144579b2ec07d1377fe61a08a43c8549f
Author: Marc-Andrà Lureau <marcandre lureau gmail com>
Date:   Sat Jun 9 01:03:46 2012 +0200

    Selection mode should be single-click
    
    Pretend the MODIFY_SELECTION modifier is pressed
    (fake a Ctrl-pressed for example) to allow single-click selection.
    
    I wonder if this is really GNOME HIG compliant, but gnome-documents
    seems to also do single-click selection in collection view,
    although it seems to use a different selection mechanism..
    
    https://bugzilla.gnome.org/show_bug.cgi?id=672152

 src/collection-view.vala |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/collection-view.vala b/src/collection-view.vala
index a2e9e1a..9fe442a 100644
--- a/src/collection-view.vala
+++ b/src/collection-view.vala
@@ -199,6 +199,12 @@ private class Boxes.CollectionView: Boxes.UI {
         model.set_sort_column_id (Gtk.SortColumn.DEFAULT, Gtk.SortType.ASCENDING);
 
         icon_view = new Gtk.IconView.with_model (model);
+        icon_view.button_press_event.connect ((event) => {
+            if (App.app.selection_mode)
+                event.state |= icon_view.get_modifier_mask (Gdk.ModifierIntent.MODIFY_SELECTION);
+
+            return false;
+        });
         icon_view.item_width = 185;
         icon_view.column_spacing = 20;
         icon_view.margin = 16;