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Diffstat (limited to 'src/nautilus-search-engine.c')
| -rw-r--r-- | src/nautilus-search-engine.c | 588 |
1 files changed, 588 insertions, 0 deletions
diff --git a/src/nautilus-search-engine.c b/src/nautilus-search-engine.c new file mode 100644 index 0000000..48bfa1f --- /dev/null +++ b/src/nautilus-search-engine.c @@ -0,0 +1,588 @@ +/* + * 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 "nautilus-search-engine.h" +#include "nautilus-search-engine-private.h" + +#include "nautilus-file-utilities.h" +#include "nautilus-search-engine-model.h" +#include <glib/gi18n.h> +#define DEBUG_FLAG NAUTILUS_DEBUG_SEARCH +#include "nautilus-debug.h" +#include "nautilus-search-engine-recent.h" +#include "nautilus-search-engine-simple.h" +#include "nautilus-search-engine-tracker.h" + +typedef struct +{ + NautilusSearchEngineTracker *tracker; + NautilusSearchEngineRecent *recent; + NautilusSearchEngineSimple *simple; + NautilusSearchEngineModel *model; + + GHashTable *uris; + guint providers_running; + guint providers_finished; + guint providers_error; + + gboolean running; + gboolean restart; +} NautilusSearchEnginePrivate; + +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_ADD_PRIVATE (NautilusSearchEngine) + G_IMPLEMENT_INTERFACE (NAUTILUS_TYPE_SEARCH_PROVIDER, + nautilus_search_provider_init)) + +static void +nautilus_search_engine_set_query (NautilusSearchProvider *provider, + NautilusQuery *query) +{ + NautilusSearchEngine *engine; + NautilusSearchEnginePrivate *priv; + + engine = NAUTILUS_SEARCH_ENGINE (provider); + priv = nautilus_search_engine_get_instance_private (engine); + + nautilus_search_provider_set_query (NAUTILUS_SEARCH_PROVIDER (priv->tracker), query); + nautilus_search_provider_set_query (NAUTILUS_SEARCH_PROVIDER (priv->recent), query); + nautilus_search_provider_set_query (NAUTILUS_SEARCH_PROVIDER (priv->model), query); + nautilus_search_provider_set_query (NAUTILUS_SEARCH_PROVIDER (priv->simple), query); +} + +static void +search_engine_start_real_setup (NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + + priv = nautilus_search_engine_get_instance_private (engine); + + priv->providers_running = 0; + priv->providers_finished = 0; + priv->providers_error = 0; + + priv->restart = FALSE; + + DEBUG ("Search engine start real setup"); + + g_object_ref (engine); +} + +static void +search_engine_start_real_tracker (NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + + priv = nautilus_search_engine_get_instance_private (engine); + + priv->providers_running++; + nautilus_search_provider_start (NAUTILUS_SEARCH_PROVIDER (priv->tracker)); +} + +static void +search_engine_start_real_recent (NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + + priv = nautilus_search_engine_get_instance_private (engine); + + priv->providers_running++; + nautilus_search_provider_start (NAUTILUS_SEARCH_PROVIDER (priv->recent)); +} + +static void +search_engine_start_real_model (NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + + priv = nautilus_search_engine_get_instance_private (engine); + if (nautilus_search_engine_model_get_model (priv->model)) + { + priv->providers_running++; + nautilus_search_provider_start (NAUTILUS_SEARCH_PROVIDER (priv->model)); + } +} + +static void +search_engine_start_real_simple (NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + + priv = nautilus_search_engine_get_instance_private (engine); + priv->providers_running++; + + nautilus_search_provider_start (NAUTILUS_SEARCH_PROVIDER (priv->simple)); +} + +static void +search_engine_start_real (NautilusSearchEngine *engine, + NautilusSearchEngineTarget target_engine) +{ + search_engine_start_real_setup (engine); + + switch (target_engine) + { + case NAUTILUS_SEARCH_ENGINE_TRACKER_ENGINE: + { + search_engine_start_real_tracker (engine); + } + break; + + case NAUTILUS_SEARCH_ENGINE_RECENT_ENGINE: + { + search_engine_start_real_recent (engine); + } + break; + + case NAUTILUS_SEARCH_ENGINE_MODEL_ENGINE: + { + search_engine_start_real_model (engine); + } + break; + + case NAUTILUS_SEARCH_ENGINE_SIMPLE_ENGINE: + { + search_engine_start_real_simple (engine); + } + break; + + case NAUTILUS_SEARCH_ENGINE_ALL_ENGINES: + default: + { + search_engine_start_real_tracker (engine); + search_engine_start_real_recent (engine); + search_engine_start_real_model (engine); + search_engine_start_real_simple (engine); + } + } +} + +void +nautilus_search_engine_start_by_target (NautilusSearchProvider *provider, + NautilusSearchEngineTarget target_engine) +{ + NautilusSearchEngine *engine; + NautilusSearchEnginePrivate *priv; + gint num_finished; + + engine = NAUTILUS_SEARCH_ENGINE (provider); + priv = nautilus_search_engine_get_instance_private (engine); + + DEBUG ("Search engine start"); + + num_finished = priv->providers_error + priv->providers_finished; + + if (priv->running) + { + if (num_finished == priv->providers_running && + priv->restart) + { + search_engine_start_real (engine, target_engine); + } + + return; + } + + priv->running = TRUE; + + g_object_notify (G_OBJECT (provider), "running"); + + if (num_finished < priv->providers_running) + { + priv->restart = TRUE; + } + else + { + search_engine_start_real (engine, target_engine); + } +} + + + +static void +nautilus_search_engine_start (NautilusSearchProvider *provider) +{ + NautilusSearchEngine *engine; + NautilusSearchEnginePrivate *priv; + gint num_finished; + + engine = NAUTILUS_SEARCH_ENGINE (provider); + priv = nautilus_search_engine_get_instance_private (engine); + + DEBUG ("Search engine start"); + + num_finished = priv->providers_error + priv->providers_finished; + + if (priv->running) + { + if (num_finished == priv->providers_running && + priv->restart) + { + search_engine_start_real (engine, NAUTILUS_SEARCH_ENGINE_ALL_ENGINES); + } + + return; + } + + priv->running = TRUE; + + g_object_notify (G_OBJECT (provider), "running"); + + if (num_finished < priv->providers_running) + { + priv->restart = TRUE; + } + else + { + search_engine_start_real (engine, NAUTILUS_SEARCH_ENGINE_ALL_ENGINES); + } +} + +static void +nautilus_search_engine_stop (NautilusSearchProvider *provider) +{ + NautilusSearchEngine *engine; + NautilusSearchEnginePrivate *priv; + + engine = NAUTILUS_SEARCH_ENGINE (provider); + priv = nautilus_search_engine_get_instance_private (engine); + + DEBUG ("Search engine stop"); + + nautilus_search_provider_stop (NAUTILUS_SEARCH_PROVIDER (priv->tracker)); + nautilus_search_provider_stop (NAUTILUS_SEARCH_PROVIDER (priv->recent)); + nautilus_search_provider_stop (NAUTILUS_SEARCH_PROVIDER (priv->model)); + nautilus_search_provider_stop (NAUTILUS_SEARCH_PROVIDER (priv->simple)); + + priv->running = FALSE; + priv->restart = FALSE; + + g_object_notify (G_OBJECT (provider), "running"); +} + +static void +search_provider_hits_added (NautilusSearchProvider *provider, + GList *hits, + NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + GList *added = NULL; + GList *l; + + priv = nautilus_search_engine_get_instance_private (engine); + + if (!priv->running || priv->restart) + { + DEBUG ("Ignoring hits-added, since engine is %s", + !priv->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 (priv->uris, uri)); + if (count == 0) + { + added = g_list_prepend (added, hit); + } + g_hash_table_replace (priv->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) +{ + NautilusSearchEnginePrivate *priv; + gint num_finished; + + priv = nautilus_search_engine_get_instance_private (engine); + num_finished = priv->providers_error + priv->providers_finished; + + if (num_finished < priv->providers_running) + { + return; + } + + if (num_finished == priv->providers_error) + { + DEBUG ("Search engine error"); + nautilus_search_provider_error (NAUTILUS_SEARCH_PROVIDER (engine), + _("Unable to complete the requested search")); + } + else + { + if (priv->restart) + { + DEBUG ("Search engine finished and restarting"); + } + else + { + DEBUG ("Search engine finished"); + } + nautilus_search_provider_finished (NAUTILUS_SEARCH_PROVIDER (engine), + priv->restart ? NAUTILUS_SEARCH_PROVIDER_STATUS_RESTARTING : + NAUTILUS_SEARCH_PROVIDER_STATUS_NORMAL); + } + + priv->running = FALSE; + g_object_notify (G_OBJECT (engine), "running"); + + g_hash_table_remove_all (priv->uris); + + if (priv->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) +{ + NautilusSearchEnginePrivate *priv; + + DEBUG ("Search provider error: %s", error_message); + + priv = nautilus_search_engine_get_instance_private (engine); + priv->providers_error++; + + check_providers_status (engine); +} + +static void +search_provider_finished (NautilusSearchProvider *provider, + NautilusSearchProviderStatus status, + NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + + DEBUG ("Search provider finished"); + + priv = nautilus_search_engine_get_instance_private (engine); + priv->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; + NautilusSearchEnginePrivate *priv; + + engine = NAUTILUS_SEARCH_ENGINE (provider); + priv = nautilus_search_engine_get_instance_private (engine); + + return priv->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; + NautilusSearchEnginePrivate *priv; + + engine = NAUTILUS_SEARCH_ENGINE (object); + priv = nautilus_search_engine_get_instance_private (engine); + + g_hash_table_destroy (priv->uris); + + g_clear_object (&priv->tracker); + g_clear_object (&priv->recent); + g_clear_object (&priv->model); + g_clear_object (&priv->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"); +} + +static void +nautilus_search_engine_init (NautilusSearchEngine *engine) +{ + NautilusSearchEnginePrivate *priv; + + priv = nautilus_search_engine_get_instance_private (engine); + priv->uris = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL); + + priv->tracker = nautilus_search_engine_tracker_new (); + connect_provider_signals (engine, NAUTILUS_SEARCH_PROVIDER (priv->tracker)); + + priv->model = nautilus_search_engine_model_new (); + connect_provider_signals (engine, NAUTILUS_SEARCH_PROVIDER (priv->model)); + + priv->simple = nautilus_search_engine_simple_new (); + connect_provider_signals (engine, NAUTILUS_SEARCH_PROVIDER (priv->simple)); + + priv->recent = nautilus_search_engine_recent_new (); + connect_provider_signals (engine, NAUTILUS_SEARCH_PROVIDER (priv->recent)); +} + +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) +{ + NautilusSearchEnginePrivate *priv; + + priv = nautilus_search_engine_get_instance_private (engine); + + return priv->model; +} + +gboolean +is_recursive_search (NautilusSearchEngineType engine_type, + NautilusQueryRecursive recursive, + GFile *location) +{ + switch (recursive) + { + case NAUTILUS_QUERY_RECURSIVE_NEVER: + { + return FALSE; + } + + case NAUTILUS_QUERY_RECURSIVE_ALWAYS: + { + return TRUE; + } + + case NAUTILUS_QUERY_RECURSIVE_INDEXED_ONLY: + { + return engine_type == NAUTILUS_SEARCH_ENGINE_TYPE_INDEXED; + } + + case NAUTILUS_QUERY_RECURSIVE_LOCAL_ONLY: + { + g_autoptr (GFileInfo) file_system_info = NULL; + + file_system_info = g_file_query_filesystem_info (location, + G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE, + NULL, NULL); + if (file_system_info != NULL) + { + return !g_file_info_get_attribute_boolean (file_system_info, + G_FILE_ATTRIBUTE_FILESYSTEM_REMOTE); + } + } + } + + return TRUE; +} |