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authorPerberos <[email protected]>2011-12-01 22:24:23 -0300
committerPerberos <[email protected]>2011-12-01 22:24:23 -0300
commit0e004c696b0e68b2cff37a4c3315b022a35eaf43 (patch)
tree43261e815529cb9518ed7be37af13b846af8b26b /libcaja-private/caja-search-engine-simple.c
downloadcaja-0e004c696b0e68b2cff37a4c3315b022a35eaf43.tar.bz2
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moving from https://github.com/perberos/mate-desktop-environment
Diffstat (limited to 'libcaja-private/caja-search-engine-simple.c')
-rw-r--r--libcaja-private/caja-search-engine-simple.c464
1 files changed, 464 insertions, 0 deletions
diff --git a/libcaja-private/caja-search-engine-simple.c b/libcaja-private/caja-search-engine-simple.c
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+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/*
+ * Copyright (C) 2005 Red Hat, Inc
+ *
+ * Caja 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.
+ *
+ * Caja 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,
+ * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Alexander Larsson <[email protected]>
+ *
+ */
+
+#include <config.h>
+#include "caja-search-engine-simple.h"
+
+#include <string.h>
+#include <glib.h>
+
+#include <eel/eel-gtk-macros.h>
+#include <eel/eel-glib-extensions.h>
+#include <gio/gio.h>
+
+#define BATCH_SIZE 500
+
+typedef struct
+{
+ CajaSearchEngineSimple *engine;
+ GCancellable *cancellable;
+
+ GList *mime_types;
+ char **words;
+ GList *found_list;
+
+ GQueue *directories; /* GFiles */
+
+ GHashTable *visited;
+
+ gint n_processed_files;
+ GList *uri_hits;
+} SearchThreadData;
+
+
+struct CajaSearchEngineSimpleDetails
+{
+ CajaQuery *query;
+
+ SearchThreadData *active_search;
+
+ gboolean query_finished;
+};
+
+
+static void caja_search_engine_simple_class_init (CajaSearchEngineSimpleClass *class);
+static void caja_search_engine_simple_init (CajaSearchEngineSimple *engine);
+
+G_DEFINE_TYPE (CajaSearchEngineSimple,
+ caja_search_engine_simple,
+ CAJA_TYPE_SEARCH_ENGINE);
+
+static CajaSearchEngineClass *parent_class = NULL;
+
+static void
+finalize (GObject *object)
+{
+ CajaSearchEngineSimple *simple;
+
+ simple = CAJA_SEARCH_ENGINE_SIMPLE (object);
+
+ if (simple->details->query)
+ {
+ g_object_unref (simple->details->query);
+ simple->details->query = NULL;
+ }
+
+ g_free (simple->details);
+
+ EEL_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static SearchThreadData *
+search_thread_data_new (CajaSearchEngineSimple *engine,
+ CajaQuery *query)
+{
+ SearchThreadData *data;
+ char *text, *lower, *normalized, *uri;
+ GFile *location;
+
+ data = g_new0 (SearchThreadData, 1);
+
+ data->engine = engine;
+ data->directories = g_queue_new ();
+ data->visited = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
+ uri = caja_query_get_location (query);
+ location = NULL;
+ if (uri != NULL)
+ {
+ location = g_file_new_for_uri (uri);
+ g_free (uri);
+ }
+ if (location == NULL)
+ {
+ location = g_file_new_for_path ("/");
+ }
+ g_queue_push_tail (data->directories, location);
+
+ text = caja_query_get_text (query);
+ normalized = g_utf8_normalize (text, -1, G_NORMALIZE_NFD);
+ lower = g_utf8_strdown (normalized, -1);
+ data->words = g_strsplit (lower, " ", -1);
+ g_free (text);
+ g_free (lower);
+ g_free (normalized);
+
+ data->mime_types = caja_query_get_mime_types (query);
+
+ data->cancellable = g_cancellable_new ();
+
+ return data;
+}
+
+static void
+search_thread_data_free (SearchThreadData *data)
+{
+ g_queue_foreach (data->directories,
+ (GFunc)g_object_unref, NULL);
+ g_queue_free (data->directories);
+ g_hash_table_destroy (data->visited);
+ g_object_unref (data->cancellable);
+ g_strfreev (data->words);
+ eel_g_list_free_deep (data->mime_types);
+ eel_g_list_free_deep (data->uri_hits);
+ g_free (data);
+}
+
+static gboolean
+search_thread_done_idle (gpointer user_data)
+{
+ SearchThreadData *data;
+
+ data = user_data;
+
+ if (!g_cancellable_is_cancelled (data->cancellable))
+ {
+ caja_search_engine_finished (CAJA_SEARCH_ENGINE (data->engine));
+ data->engine->details->active_search = NULL;
+ }
+
+ search_thread_data_free (data);
+
+ return FALSE;
+}
+
+typedef struct
+{
+ GList *uris;
+ SearchThreadData *thread_data;
+} SearchHits;
+
+
+static gboolean
+search_thread_add_hits_idle (gpointer user_data)
+{
+ SearchHits *hits;
+
+ hits = user_data;
+
+ if (!g_cancellable_is_cancelled (hits->thread_data->cancellable))
+ {
+ caja_search_engine_hits_added (CAJA_SEARCH_ENGINE (hits->thread_data->engine),
+ hits->uris);
+ }
+
+ eel_g_list_free_deep (hits->uris);
+ g_free (hits);
+
+ return FALSE;
+}
+
+static void
+send_batch (SearchThreadData *data)
+{
+ SearchHits *hits;
+
+ data->n_processed_files = 0;
+
+ if (data->uri_hits)
+ {
+ hits = g_new (SearchHits, 1);
+ hits->uris = data->uri_hits;
+ hits->thread_data = data;
+ g_idle_add (search_thread_add_hits_idle, hits);
+ }
+ data->uri_hits = NULL;
+}
+
+#define STD_ATTRIBUTES \
+ G_FILE_ATTRIBUTE_STANDARD_NAME "," \
+ G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME "," \
+ G_FILE_ATTRIBUTE_STANDARD_IS_HIDDEN "," \
+ G_FILE_ATTRIBUTE_STANDARD_TYPE "," \
+ G_FILE_ATTRIBUTE_ID_FILE
+
+static void
+visit_directory (GFile *dir, SearchThreadData *data)
+{
+ GFileEnumerator *enumerator;
+ GFileInfo *info;
+ GFile *child;
+ const char *mime_type, *display_name;
+ char *lower_name, *normalized;
+ gboolean hit;
+ int i;
+ GList *l;
+ const char *id;
+ gboolean visited;
+
+ enumerator = g_file_enumerate_children (dir,
+ data->mime_types != NULL ?
+ STD_ATTRIBUTES ","
+ G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE
+ :
+ STD_ATTRIBUTES
+ ,
+ 0, data->cancellable, NULL);
+
+ if (enumerator == NULL)
+ {
+ return;
+ }
+
+ while ((info = g_file_enumerator_next_file (enumerator, data->cancellable, NULL)) != NULL)
+ {
+ if (g_file_info_get_is_hidden (info))
+ {
+ goto next;
+ }
+
+ display_name = g_file_info_get_display_name (info);
+ if (display_name == NULL)
+ {
+ goto next;
+ }
+
+ normalized = g_utf8_normalize (display_name, -1, G_NORMALIZE_NFD);
+ lower_name = g_utf8_strdown (normalized, -1);
+ g_free (normalized);
+
+ hit = TRUE;
+ for (i = 0; data->words[i] != NULL; i++)
+ {
+ if (strstr (lower_name, data->words[i]) == NULL)
+ {
+ hit = FALSE;
+ break;
+ }
+ }
+ g_free (lower_name);
+
+ if (hit && data->mime_types)
+ {
+ mime_type = g_file_info_get_content_type (info);
+ hit = FALSE;
+
+ for (l = data->mime_types; mime_type != NULL && l != NULL; l = l->next)
+ {
+ if (g_content_type_equals (mime_type, l->data))
+ {
+ hit = TRUE;
+ break;
+ }
+ }
+ }
+
+ child = g_file_get_child (dir, g_file_info_get_name (info));
+
+ if (hit)
+ {
+ data->uri_hits = g_list_prepend (data->uri_hits, g_file_get_uri (child));
+ }
+
+ data->n_processed_files++;
+ if (data->n_processed_files > BATCH_SIZE)
+ {
+ send_batch (data);
+ }
+
+ if (g_file_info_get_file_type (info) == G_FILE_TYPE_DIRECTORY)
+ {
+ id = g_file_info_get_attribute_string (info, G_FILE_ATTRIBUTE_ID_FILE);
+ visited = FALSE;
+ if (id)
+ {
+ if (g_hash_table_lookup_extended (data->visited,
+ id, NULL, NULL))
+ {
+ visited = TRUE;
+ }
+ else
+ {
+ g_hash_table_insert (data->visited, g_strdup (id), NULL);
+ }
+ }
+
+ if (!visited)
+ {
+ g_queue_push_tail (data->directories, g_object_ref (child));
+ }
+ }
+
+ g_object_unref (child);
+next:
+ g_object_unref (info);
+ }
+
+ g_object_unref (enumerator);
+}
+
+
+static gpointer
+search_thread_func (gpointer user_data)
+{
+ SearchThreadData *data;
+ GFile *dir;
+ GFileInfo *info;
+ const char *id;
+
+ data = user_data;
+
+ /* Insert id for toplevel directory into visited */
+ dir = g_queue_peek_head (data->directories);
+ info = g_file_query_info (dir, G_FILE_ATTRIBUTE_ID_FILE, 0, data->cancellable, NULL);
+ if (info)
+ {
+ id = g_file_info_get_attribute_string (info, G_FILE_ATTRIBUTE_ID_FILE);
+ if (id)
+ {
+ g_hash_table_insert (data->visited, g_strdup (id), NULL);
+ }
+ g_object_unref (info);
+ }
+
+ while (!g_cancellable_is_cancelled (data->cancellable) &&
+ (dir = g_queue_pop_head (data->directories)) != NULL)
+ {
+ visit_directory (dir, data);
+ g_object_unref (dir);
+ }
+ send_batch (data);
+
+ g_idle_add (search_thread_done_idle, data);
+
+ return NULL;
+}
+
+static void
+caja_search_engine_simple_start (CajaSearchEngine *engine)
+{
+ CajaSearchEngineSimple *simple;
+ SearchThreadData *data;
+
+ simple = CAJA_SEARCH_ENGINE_SIMPLE (engine);
+
+ if (simple->details->active_search != NULL)
+ {
+ return;
+ }
+
+ if (simple->details->query == NULL)
+ {
+ return;
+ }
+
+ data = search_thread_data_new (simple, simple->details->query);
+
+ g_thread_create (search_thread_func, data, FALSE, NULL);
+
+ simple->details->active_search = data;
+}
+
+static void
+caja_search_engine_simple_stop (CajaSearchEngine *engine)
+{
+ CajaSearchEngineSimple *simple;
+
+ simple = CAJA_SEARCH_ENGINE_SIMPLE (engine);
+
+ if (simple->details->active_search != NULL)
+ {
+ g_cancellable_cancel (simple->details->active_search->cancellable);
+ simple->details->active_search = NULL;
+ }
+}
+
+static gboolean
+caja_search_engine_simple_is_indexed (CajaSearchEngine *engine)
+{
+ return FALSE;
+}
+
+static void
+caja_search_engine_simple_set_query (CajaSearchEngine *engine, CajaQuery *query)
+{
+ CajaSearchEngineSimple *simple;
+
+ simple = CAJA_SEARCH_ENGINE_SIMPLE (engine);
+
+ if (query)
+ {
+ g_object_ref (query);
+ }
+
+ if (simple->details->query)
+ {
+ g_object_unref (simple->details->query);
+ }
+
+ simple->details->query = query;
+}
+
+static void
+caja_search_engine_simple_class_init (CajaSearchEngineSimpleClass *class)
+{
+ GObjectClass *gobject_class;
+ CajaSearchEngineClass *engine_class;
+
+ parent_class = g_type_class_peek_parent (class);
+
+ gobject_class = G_OBJECT_CLASS (class);
+ gobject_class->finalize = finalize;
+
+ engine_class = CAJA_SEARCH_ENGINE_CLASS (class);
+ engine_class->set_query = caja_search_engine_simple_set_query;
+ engine_class->start = caja_search_engine_simple_start;
+ engine_class->stop = caja_search_engine_simple_stop;
+ engine_class->is_indexed = caja_search_engine_simple_is_indexed;
+}
+
+static void
+caja_search_engine_simple_init (CajaSearchEngineSimple *engine)
+{
+ engine->details = g_new0 (CajaSearchEngineSimpleDetails, 1);
+}
+
+
+CajaSearchEngine *
+caja_search_engine_simple_new (void)
+{
+ CajaSearchEngine *engine;
+
+ engine = g_object_new (CAJA_TYPE_SEARCH_ENGINE_SIMPLE, NULL);
+
+ return engine;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-17 01:45:26 +0000