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/*
* Copyright (C) 2005 Novell, Inc.
*
* Nautilus 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.
*
* Nautilus 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; see the file COPYING. If not,
* see <http://www.gnu.org/licenses/>.
*
* Author: Anders Carlsson <andersca@imendio.com>
*
*/
#include <config.h>
#include <glib/gi18n.h>
#include "nautilus-search-provider.h"
#include "nautilus-search-engine.h"
#include "nautilus-search-engine-simple.h"
#include "nautilus-search-engine-model.h"
#define DEBUG_FLAG NAUTILUS_DEBUG_SEARCH
#include "nautilus-debug.h"
#ifdef ENABLE_TRACKER
#include "nautilus-search-engine-tracker.h"
#endif
struct NautilusSearchEngineDetails
{
#ifdef ENABLE_TRACKER
NautilusSearchEngineTracker *tracker;
#endif
NautilusSearchEngineSimple *simple;
NautilusSearchEngineModel *model;
GHashTable *uris;
guint providers_running;
guint providers_finished;
guint providers_error;
gboolean running;
gboolean restart;
};
enum
{
PROP_0,
PROP_RUNNING,
LAST_PROP
};
static void nautilus_search_provider_init (NautilusSearchProviderInterface *iface);
static gboolean nautilus_search_engine_is_running (NautilusSearchProvider *provider);
G_DEFINE_TYPE_WITH_CODE (NautilusSearchEngine,
nautilus_search_engine,
G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (NAUTILUS_TYPE_SEARCH_PROVIDER,
nautilus_search_provider_init))
static void
nautilus_search_engine_set_query (NautilusSearchProvider *provider,
NautilusQuery *query)
{
NautilusSearchEngine *engine = NAUTILUS_SEARCH_ENGINE (provider);
#ifdef ENABLE_TRACKER
nautilus_search_provider_set_query (NAUTILUS_SEARCH_PROVIDER (engine->details->tracker), query);
#endif
nautilus_search_provider_set_query (NAUTILUS_SEARCH_PROVIDER (engine->details->model), query);
nautilus_search_provider_set_query (NAUTILUS_SEARCH_PROVIDER (engine->details->simple), query);
}
static void
search_engine_start_real (NautilusSearchEngine *engine)
{
engine->details->providers_running = 0;
engine->details->providers_finished = 0;
engine->details->providers_error = 0;
engine->details->restart = FALSE;
DEBUG ("Search engine start real");
g_object_ref (engine);
#ifdef ENABLE_TRACKER
nautilus_search_provider_start (NAUTILUS_SEARCH_PROVIDER (engine->details->tracker));
engine->details->providers_running++;
#endif
if (nautilus_search_engine_model_get_model (engine->details->model))
{
nautilus_search_provider_start (NAUTILUS_SEARCH_PROVIDER (engine->details->model));
engine->details->providers_running++;
}
nautilus_search_provider_start (NAUTILUS_SEARCH_PROVIDER (engine->details->simple));
engine->details->providers_running++;
}
static void
nautilus_search_engine_start (NautilusSearchProvider *provider)
{
NautilusSearchEngine *engine = NAUTILUS_SEARCH_ENGINE (provider);
gint num_finished;
DEBUG ("Search engine start");
num_finished = engine->details->providers_error + engine->details->providers_finished;
if (engine->details->running)
{
if (num_finished == engine->details->providers_running &&
engine->details->restart)
{
search_engine_start_real (engine);
}
return;
}
engine->details->running = TRUE;
g_object_notify (G_OBJECT (provider), "running");
if (num_finished < engine->details->providers_running)
{
engine->details->restart = TRUE;
}
else
{
search_engine_start_real (engine);
}
}
static void
nautilus_search_engine_stop (NautilusSearchProvider *provider)
{
NautilusSearchEngine *engine = NAUTILUS_SEARCH_ENGINE (provider);
DEBUG ("Search engine stop");
#ifdef ENABLE_TRACKER
nautilus_search_provider_stop (NAUTILUS_SEARCH_PROVIDER (engine->details->tracker));
#endif
nautilus_search_provider_stop (NAUTILUS_SEARCH_PROVIDER (engine->details->model));
nautilus_search_provider_stop (NAUTILUS_SEARCH_PROVIDER (engine->details->simple));
engine->details->running = FALSE;
engine->details->restart = FALSE;
g_object_notify (G_OBJECT (provider), "running");
}
static void
search_provider_hits_added (NautilusSearchProvider *provider,
GList *hits,
NautilusSearchEngine *engine)
{
GList *added = NULL;
GList *l;
if (!engine->details->running || engine->details->restart)
{
DEBUG ("Ignoring hits-added, since engine is %s",
!engine->details->running ? "not running" : "waiting to restart");
return;
}
for (l = hits; l != NULL; l = l->next)
{
NautilusSearchHit *hit = l->data;
int count;
const char *uri;
uri = nautilus_search_hit_get_uri (hit);
count = GPOINTER_TO_INT (g_hash_table_lookup (engine->details->uris, uri));
if (count == 0)
{
added = g_list_prepend (added, hit);
}
g_hash_table_replace (engine->details->uris, g_strdup (uri), GINT_TO_POINTER (++count));
}
if (added != NULL)
{
added = g_list_reverse (added);
nautilus_search_provider_hits_added (NAUTILUS_SEARCH_PROVIDER (engine), added);
g_list_free (added);
}
}
static void
check_providers_status (NautilusSearchEngine *engine)
{
gint num_finished = engine->details->providers_error + engine->details->providers_finished;
if (num_finished < engine->details->providers_running)
{
return;
}
if (num_finished == engine->details->providers_error)
{
DEBUG ("Search engine error");
nautilus_search_provider_error (NAUTILUS_SEARCH_PROVIDER (engine),
_("Unable to complete the requested search"));
}
else
{
if (engine->details->restart)
{
DEBUG ("Search engine finished and restarting");
}
else
{
DEBUG ("Search engine finished");
}
nautilus_search_provider_finished (NAUTILUS_SEARCH_PROVIDER (engine),
engine->details->restart ? NAUTILUS_SEARCH_PROVIDER_STATUS_RESTARTING :
NAUTILUS_SEARCH_PROVIDER_STATUS_NORMAL);
}
engine->details->running = FALSE;
g_object_notify (G_OBJECT (engine), "running");
g_hash_table_remove_all (engine->details->uris);
if (engine->details->restart)
{
nautilus_search_engine_start (NAUTILUS_SEARCH_PROVIDER (engine));
}
g_object_unref (engine);
}
static void
search_provider_error (NautilusSearchProvider *provider,
const char *error_message,
NautilusSearchEngine *engine)
{
DEBUG ("Search provider error: %s", error_message);
engine->details->providers_error++;
check_providers_status (engine);
}
static void
search_provider_finished (NautilusSearchProvider *provider,
NautilusSearchProviderStatus status,
NautilusSearchEngine *engine)
{
DEBUG ("Search provider finished");
engine->details->providers_finished++;
check_providers_status (engine);
}
static void
connect_provider_signals (NautilusSearchEngine *engine,
NautilusSearchProvider *provider)
{
g_signal_connect (provider, "hits-added",
G_CALLBACK (search_provider_hits_added),
engine);
g_signal_connect (provider, "finished",
G_CALLBACK (search_provider_finished),
engine);
g_signal_connect (provider, "error",
G_CALLBACK (search_provider_error),
engine);
}
static gboolean
nautilus_search_engine_is_running (NautilusSearchProvider *provider)
{
NautilusSearchEngine *engine;
engine = NAUTILUS_SEARCH_ENGINE (provider);
return engine->details->running;
}
static void
nautilus_search_provider_init (NautilusSearchProviderInterface *iface)
{
iface->set_query = nautilus_search_engine_set_query;
iface->start = nautilus_search_engine_start;
iface->stop = nautilus_search_engine_stop;
iface->is_running = nautilus_search_engine_is_running;
}
static void
nautilus_search_engine_finalize (GObject *object)
{
NautilusSearchEngine *engine = NAUTILUS_SEARCH_ENGINE (object);
g_hash_table_destroy (engine->details->uris);
#ifdef ENABLE_TRACKER
g_clear_object (&engine->details->tracker);
#endif
g_clear_object (&engine->details->model);
g_clear_object (&engine->details->simple);
G_OBJECT_CLASS (nautilus_search_engine_parent_class)->finalize (object);
}
static void
nautilus_search_engine_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
NautilusSearchProvider *self = NAUTILUS_SEARCH_PROVIDER (object);
switch (prop_id)
{
case PROP_RUNNING:
{
g_value_set_boolean (value, nautilus_search_engine_is_running (self));
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
nautilus_search_engine_class_init (NautilusSearchEngineClass *class)
{
GObjectClass *object_class;
object_class = (GObjectClass *) class;
object_class->finalize = nautilus_search_engine_finalize;
object_class->get_property = nautilus_search_engine_get_property;
/**
* NautilusSearchEngine::running:
*
* Whether the search engine is running a search.
*/
g_object_class_override_property (object_class, PROP_RUNNING, "running");
g_type_class_add_private (class, sizeof (NautilusSearchEngineDetails));
}
static void
nautilus_search_engine_init (NautilusSearchEngine *engine)
{
engine->details = G_TYPE_INSTANCE_GET_PRIVATE (engine,
NAUTILUS_TYPE_SEARCH_ENGINE,
NautilusSearchEngineDetails);
engine->details->uris = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
#ifdef ENABLE_TRACKER
engine->details->tracker = nautilus_search_engine_tracker_new ();
connect_provider_signals (engine, NAUTILUS_SEARCH_PROVIDER (engine->details->tracker));
#endif
engine->details->model = nautilus_search_engine_model_new ();
connect_provider_signals (engine, NAUTILUS_SEARCH_PROVIDER (engine->details->model));
engine->details->simple = nautilus_search_engine_simple_new ();
connect_provider_signals (engine, NAUTILUS_SEARCH_PROVIDER (engine->details->simple));
}
NautilusSearchEngine *
nautilus_search_engine_new (void)
{
NautilusSearchEngine *engine;
engine = g_object_new (NAUTILUS_TYPE_SEARCH_ENGINE, NULL);
return engine;
}
NautilusSearchEngineModel *
nautilus_search_engine_get_model_provider (NautilusSearchEngine *engine)
{
return engine->details->model;
}
NautilusSearchEngineSimple *
nautilus_search_engine_get_simple_provider (NautilusSearchEngine *engine)
{
return engine->details->simple;
}
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