/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */

/*
 * Copyright (C) 2014 Red Hat
 *
 * 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.
 *
 * Written by:
 *     Jasper St. Pierre <jstpierre@mecheye.net>
 */

#include "config.h"

#include <meta/main.h>
#include "meta-backend-native.h"

#include "meta-idle-monitor-native.h"
#include "meta-monitor-manager-kms.h"
#include "meta-weston-launch.h"

struct _MetaBackendNativePrivate
{
  MetaLauncher *launcher;
};
typedef struct _MetaBackendNativePrivate MetaBackendNativePrivate;

G_DEFINE_TYPE_WITH_PRIVATE (MetaBackendNative, meta_backend_native, META_TYPE_BACKEND);

static MetaIdleMonitor *
meta_backend_native_create_idle_monitor (MetaBackend *backend,
                                         int          device_id)
{
  return g_object_new (META_TYPE_IDLE_MONITOR_NATIVE,
                       "device-id", device_id,
                       NULL);
}

static MetaMonitorManager *
meta_backend_native_create_monitor_manager (MetaBackend *backend)
{
  return g_object_new (META_TYPE_MONITOR_MANAGER_KMS, NULL);
}

static void
meta_backend_native_class_init (MetaBackendNativeClass *klass)
{
  MetaBackendClass *backend_class = META_BACKEND_CLASS (klass);

  backend_class->create_idle_monitor = meta_backend_native_create_idle_monitor;
  backend_class->create_monitor_manager = meta_backend_native_create_monitor_manager;
}

static void
meta_backend_native_init (MetaBackendNative *native)
{
  MetaBackendNativePrivate *priv = meta_backend_native_get_instance_private (native);

  /* We're a display server, so start talking to weston-launch. */
  priv->launcher = meta_launcher_new ();
}

gboolean
meta_activate_vt (int vt, GError **error)
{
  MetaBackend *backend = meta_get_backend ();
  MetaBackendNative *native = META_BACKEND_NATIVE (backend);
  MetaBackendNativePrivate *priv = meta_backend_native_get_instance_private (native);

  return meta_launcher_activate_vt (priv->launcher, vt, error);
}

/**
 * meta_activate_session:
 *
 * Tells mutter to activate the session. When mutter is a
 * Wayland compositor, this tells logind to switch over to
 * the new session.
 */
gboolean
meta_activate_session (void)
{
  GError *error = NULL;
  MetaBackend *backend = meta_get_backend ();

  /* Do nothing. */
  if (!META_IS_BACKEND_NATIVE (backend))
    return TRUE;

  MetaBackendNative *native = META_BACKEND_NATIVE (backend);
  MetaBackendNativePrivate *priv = meta_backend_native_get_instance_private (native);

  if (!meta_launcher_activate_vt (priv->launcher, -1, &error))
    {
      g_warning ("Could not activate session: %s\n", error->message);
      g_error_free (error);
      return FALSE;
    }

  return TRUE;
}