/*
 * app_keyboard - zavai keyboard show/hide functions
 *
 * Copyright (C) 2009  Enrico Zini <enrico@enricozini.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

using GLib;

namespace zavai {
namespace ui {
namespace kbd {

public class Keyboard : Service
{
	protected Pid pid;

	public Keyboard()
	{
		name = "keyboard";
	}

	private void on_child_quit(Pid pid, int status)
	{
		Process.close_pid(pid);
		pid = (Pid)0;
		stop();
	}

	protected override void start()
	{
		string[] args = { "/usr/bin/matchbox-keyboard", null };
		int opid;
		try {
			Gdk.spawn_on_screen(
				Gdk.Screen.get_default(),
				"/",
				args,
				null,
				SpawnFlags.SEARCH_PATH | SpawnFlags.STDOUT_TO_DEV_NULL | SpawnFlags.STDERR_TO_DEV_NULL,
				null,
				out opid);
			pid = (Pid)opid;
			ChildWatch.add(pid, on_child_quit);
			base.start();
		} catch (Error e) {
			log.error("Running matchbox-keyboard: " + e.message);
			pid = (Pid)0;
		}
	}

	protected override void stop()
	{
		if ((int)pid != 0)
		{
			Posix.kill((int)pid, 15);
			pid = (Pid)0;
		}
		base.stop();
	}
}

public class KeyboardIcon : Gtk.StatusIcon
{
	bool requested = false;

	public KeyboardIcon()
	{
		activate += on_activate;
        zavai.ui.power.power.screen_lock_changed += on_screen_lock_changed;

		update_icon();
	}

	private void on_activate()
	{
		requested = !requested;
		update_icon();
		if (requested)
			keyboard.request("keyboardicon");
		else
			keyboard.release("keyboardicon");
	}

    protected void on_screen_lock_changed(bool val)
    {
        update_icon();
    }

	protected void update_icon()
	{
		string name = zavai.config.icondir + "/";
        if (zavai.ui.power.power.screen_locked)
            name += "screen_lock.png";
        else
            name += (requested ? "kbd_on.png" : "kbd_off.png");
		stderr.printf("load icon from %s\n", name);
		set_from_file(name);
	}
}

/*
public class GPSRequestLink : Gtk.ToggleButton
{
	public GPSRequestLink()
	{
        // GPS status icon
        status_icon = new Gtk.StatusIcon();
        status_icon.set_visible(true);
        status_icon.activate += on_status_activate;
        update_icon();
	}

    private void on_fix_status_changed(dynamic DBus.Object pos, int fix_status)
    {
        this.fix_status = fix_status;
        update_icon();
    }

	private void on_toggled(Gtk.Button src)
	{
		Service s = zavai.registry.gets(service_name);
		if (get_active())
			s.request("servicerequestlink");
		else
			s.release("servicerequestlink");
		set_label(get_active() ? label_stop : label_start);
        update_icon();
	}

    private void on_status_activate()
    {
        set_active(!get_active());
    }
}
*/

Keyboard keyboard;
KeyboardIcon icon;

public void init()
{
stderr.printf("INIT KBD\n");
	keyboard = new Keyboard();
	zavai.registry.register_service(keyboard);
	icon = new KeyboardIcon();
	icon.set_visible(true);
}

}
}
}