[totem] grilo: Add keyboard shortcut to de-select all items

[Bastien Nocera <hadess src gnome org>]

commit 78cdce5ac0e8e54b52a585868b5ae0db9f9ba88b
Author: vrishab <gnome vrb gmail com>
Date:   Mon Dec 5 10:58:34 2016 +0530

    grilo: Add keyboard shortcut to de-select all items
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774411

 src/totem-grilo.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/totem-grilo.c b/src/totem-grilo.c
index 43026bb..6081935 100644
--- a/src/totem-grilo.c
+++ b/src/totem-grilo.c
@@ -2187,6 +2187,7 @@ setup_browse (TotemGrilo *self)
 {
        GtkAdjustment *adj;
        const char const * select_all_accels[] = { "<Primary>A", NULL };
+       const char const * select_none_accels[] = { "<Shift><Primary>A", NULL };
 
        /* Search */
        gtk_search_bar_connect_entry (GTK_SEARCH_BAR (self->priv->search_bar),
@@ -2216,6 +2217,7 @@ setup_browse (TotemGrilo *self)
        g_signal_connect (G_OBJECT (self->priv->select_none_action), "activate",
                          G_CALLBACK (select_none_action_cb), self);
        g_action_map_add_action (G_ACTION_MAP (self->priv->totem), G_ACTION (self->priv->select_none_action));
+       gtk_application_set_accels_for_action (GTK_APPLICATION (self->priv->totem), "app.select-none", 
select_none_accels);
        g_object_bind_property (self->priv->header, "select-mode",
                                self->priv->select_none_action, "enabled",
                                G_BINDING_SYNC_CREATE);