/*

 * Copyright (C) 2005 Novell, Inc.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 *

 * Author: Anders Carlsson <andersca@imendio.com>

 *

 * Based on nautilus-search-engine.c

 */

#include "config.h"

#include "gtksearchengine.h"

#include "gtksearchenginebeagle.h"

#include "gtksearchenginesimple.h"

#include "gtksearchenginetracker.h"

#include "gtksearchenginequartz.h"

#include <gdk/gdkconfig.h> /* for GDK_WINDOWING_QUARTZ */

#ifndef G_OS_WIN32		/* Beagle and tracker are not ported

				 * to Windows, as far as I know.

				 */

#define HAVE_BEAGLE  1 

#define HAVE_TRACKER 1

#endif

enum 

{

  HITS_ADDED,

  HITS_SUBTRACTED,

  FINISHED,

  ERROR,

  LAST_SIGNAL

}; 

static guint signals[LAST_SIGNAL];

G_DEFINE_ABSTRACT_TYPE (GtkSearchEngine, _gtk_search_engine, G_TYPE_OBJECT);

static void

finalize (GObject *object)

{

  G_OBJECT_CLASS (_gtk_search_engine_parent_class)->finalize (object);

}

static void

_gtk_search_engine_class_init (GtkSearchEngineClass *class)

{

  GObjectClass *gobject_class;

  gobject_class = G_OBJECT_CLASS (class);

  gobject_class->finalize = finalize;

  signals[HITS_ADDED] =

    g_signal_new ("hits-added",

		  G_TYPE_FROM_CLASS (class),

		  G_SIGNAL_RUN_LAST,

		  G_STRUCT_OFFSET (GtkSearchEngineClass, hits_added),

		  NULL, NULL,

		  g_cclosure_marshal_VOID__POINTER,

		  G_TYPE_NONE, 1,

		  G_TYPE_POINTER);

  signals[HITS_SUBTRACTED] =

    g_signal_new ("hits-subtracted",

		  G_TYPE_FROM_CLASS (class),

		  G_SIGNAL_RUN_LAST,

		  G_STRUCT_OFFSET (GtkSearchEngineClass, hits_subtracted),

		  NULL, NULL,

		  g_cclosure_marshal_VOID__POINTER,

		  G_TYPE_NONE, 1,

		  G_TYPE_POINTER);

  signals[FINISHED] =

    g_signal_new ("finished",

		  G_TYPE_FROM_CLASS (class),

		  G_SIGNAL_RUN_LAST,

		  G_STRUCT_OFFSET (GtkSearchEngineClass, finished),

		  NULL, NULL,

		  g_cclosure_marshal_VOID__VOID,

		  G_TYPE_NONE, 0);

  signals[ERROR] =

    g_signal_new ("error",

		  G_TYPE_FROM_CLASS (class),

		  G_SIGNAL_RUN_LAST,

		  G_STRUCT_OFFSET (GtkSearchEngineClass, error),

		  NULL, NULL,

		  g_cclosure_marshal_VOID__STRING,

		  G_TYPE_NONE, 1,

		  G_TYPE_STRING);  

}

static void

_gtk_search_engine_init (GtkSearchEngine *engine)

{

}

GtkSearchEngine *

_gtk_search_engine_new (void)

{

  GtkSearchEngine *engine = NULL;

#ifdef HAVE_TRACKER

  engine = _gtk_search_engine_tracker_new ();

  if (engine)

    return engine;

#endif

#ifdef HAVE_BEAGLE

  engine = _gtk_search_engine_beagle_new ();

  if (engine)

    return engine;

#endif

#ifdef GDK_WINDOWING_QUARTZ

  engine = _gtk_search_engine_quartz_new ();

  if (engine)

    return engine;

#endif

  if (g_thread_supported ())

    engine = _gtk_search_engine_simple_new ();

  return engine;

}

void

_gtk_search_engine_set_query (GtkSearchEngine *engine, 

			      GtkQuery        *query)

{

  g_return_if_fail (GTK_IS_SEARCH_ENGINE (engine));

  g_return_if_fail (GTK_SEARCH_ENGINE_GET_CLASS (engine)->set_query != NULL);

  GTK_SEARCH_ENGINE_GET_CLASS (engine)->set_query (engine, query);

}

void

_gtk_search_engine_start (GtkSearchEngine *engine)

{

  g_return_if_fail (GTK_IS_SEARCH_ENGINE (engine));

  g_return_if_fail (GTK_SEARCH_ENGINE_GET_CLASS (engine)->start != NULL);

  GTK_SEARCH_ENGINE_GET_CLASS (engine)->start (engine);

}

void

_gtk_search_engine_stop (GtkSearchEngine *engine)

{

  g_return_if_fail (GTK_IS_SEARCH_ENGINE (engine));

  g_return_if_fail (GTK_SEARCH_ENGINE_GET_CLASS (engine)->stop != NULL);

  GTK_SEARCH_ENGINE_GET_CLASS (engine)->stop (engine);

}

gboolean

_gtk_search_engine_is_indexed (GtkSearchEngine *engine)

{

  g_return_val_if_fail (GTK_IS_SEARCH_ENGINE (engine), FALSE);

  g_return_val_if_fail (GTK_SEARCH_ENGINE_GET_CLASS (engine)->is_indexed != NULL, FALSE);

  return GTK_SEARCH_ENGINE_GET_CLASS (engine)->is_indexed (engine);

}

void	       

_gtk_search_engine_hits_added (GtkSearchEngine *engine, 

			       GList           *hits)

{

  g_return_if_fail (GTK_IS_SEARCH_ENGINE (engine));

  g_signal_emit (engine, signals[HITS_ADDED], 0, hits);

}

void	       

_gtk_search_engine_hits_subtracted (GtkSearchEngine *engine, 

				    GList           *hits)

{

  g_return_if_fail (GTK_IS_SEARCH_ENGINE (engine));

  g_signal_emit (engine, signals[HITS_SUBTRACTED], 0, hits);

}

void	       

_gtk_search_engine_finished (GtkSearchEngine *engine)

{

  g_return_if_fail (GTK_IS_SEARCH_ENGINE (engine));

  g_signal_emit (engine, signals[FINISHED], 0);

}

void

_gtk_search_engine_error (GtkSearchEngine *engine, 

			  const gchar     *error_message)

{

  g_return_if_fail (GTK_IS_SEARCH_ENGINE (engine));

  g_signal_emit (engine, signals[ERROR], 0, error_message);

}