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/* -*- Mode: Vala; indent-tabs-mode: nil; tab-width: 4 -*-
*
* Copyright (C) 2011,2012 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Michael Terry <michael.terry@canonical.com>
*/
public class ListStack : Gtk.Fixed
{
public uint num_children
{
get
{
var children = get_children ();
return children.length ();
}
}
private int width;
construct
{
// Hack to avoid gtk 3.20's new allocate logic, which messes us up.
resize_mode = Gtk.ResizeMode.QUEUE;
width = grid_size * GreeterList.BOX_WIDTH;
}
public GreeterList? top ()
{
var children = get_children ();
if (children == null)
return null;
else
return children.last ().data as GreeterList;
}
public void push (GreeterList pushed)
{
return_if_fail (pushed != null);
var children = get_children ();
pushed.start_scrolling = false;
pushed.set_size_request (width, -1);
add (pushed);
if (children != null)
{
var current = children.last ().data as GreeterList;
/* Clear any errors so when we come back, they will be gone. */
current.selected_entry.reset_state ();
current.greeter_box.push (pushed);
}
}
public void pop ()
{
var children = get_children ();
return_if_fail (children != null);
unowned List<Gtk.Widget> prev = children.last ().prev;
if (prev != null)
(prev.data as GreeterList).greeter_box.pop ();
}
public override void size_allocate (Gtk.Allocation allocation)
{
base.size_allocate (allocation);
var children = get_children ();
foreach (var child in children)
{
child.size_allocate (allocation);
}
}
public override void get_preferred_width (out int min, out int nat)
{
min = width;
nat = width;
}
}
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