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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
* Copyright (C) 2005 Red Hat, 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,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Alexander Larsson <alexl@redhat.com>
*
*/
#include <config.h>
#include "nautilus-search-engine-simple.h"
#include <string.h>
#include <glib/gstrfuncs.h>
#include <eel/eel-gtk-macros.h>
#include <eel/eel-glib-extensions.h>
#include <gio/gio.h>
#define BATCH_SIZE 500
typedef struct {
NautilusSearchEngineSimple *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 NautilusSearchEngineSimpleDetails {
NautilusQuery *query;
SearchThreadData *active_search;
gboolean query_finished;
};
static void nautilus_search_engine_simple_class_init (NautilusSearchEngineSimpleClass *class);
static void nautilus_search_engine_simple_init (NautilusSearchEngineSimple *engine);
G_DEFINE_TYPE (NautilusSearchEngineSimple,
nautilus_search_engine_simple,
NAUTILUS_TYPE_SEARCH_ENGINE);
static NautilusSearchEngineClass *parent_class = NULL;
static void
finalize (GObject *object)
{
NautilusSearchEngineSimple *simple;
simple = NAUTILUS_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 (NautilusSearchEngineSimple *engine,
NautilusQuery *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 = nautilus_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 = nautilus_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 = nautilus_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)) {
nautilus_search_engine_finished (NAUTILUS_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)) {
nautilus_search_engine_hits_added (NAUTILUS_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) == 0) {
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
nautilus_search_engine_simple_start (NautilusSearchEngine *engine)
{
NautilusSearchEngineSimple *simple;
SearchThreadData *data;
simple = NAUTILUS_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
nautilus_search_engine_simple_stop (NautilusSearchEngine *engine)
{
NautilusSearchEngineSimple *simple;
simple = NAUTILUS_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
nautilus_search_engine_simple_is_indexed (NautilusSearchEngine *engine)
{
return FALSE;
}
static void
nautilus_search_engine_simple_set_query (NautilusSearchEngine *engine, NautilusQuery *query)
{
NautilusSearchEngineSimple *simple;
simple = NAUTILUS_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
nautilus_search_engine_simple_class_init (NautilusSearchEngineSimpleClass *class)
{
GObjectClass *gobject_class;
NautilusSearchEngineClass *engine_class;
parent_class = g_type_class_peek_parent (class);
gobject_class = G_OBJECT_CLASS (class);
gobject_class->finalize = finalize;
engine_class = NAUTILUS_SEARCH_ENGINE_CLASS (class);
engine_class->set_query = nautilus_search_engine_simple_set_query;
engine_class->start = nautilus_search_engine_simple_start;
engine_class->stop = nautilus_search_engine_simple_stop;
engine_class->is_indexed = nautilus_search_engine_simple_is_indexed;
}
static void
nautilus_search_engine_simple_init (NautilusSearchEngineSimple *engine)
{
engine->details = g_new0 (NautilusSearchEngineSimpleDetails, 1);
}
NautilusSearchEngine *
nautilus_search_engine_simple_new (void)
{
NautilusSearchEngine *engine;
engine = g_object_new (NAUTILUS_TYPE_SEARCH_ENGINE_SIMPLE, NULL);
return engine;
}
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