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Diffstat (limited to 'src/nautilus-query.c')
| -rw-r--r-- | src/nautilus-query.c | 688 |
1 files changed, 688 insertions, 0 deletions
diff --git a/src/nautilus-query.c b/src/nautilus-query.c new file mode 100644 index 0000000..9c43743 --- /dev/null +++ b/src/nautilus-query.c @@ -0,0 +1,688 @@ +/* + * 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 "nautilus-query.h" + +#include <eel/eel-glib-extensions.h> +#include <glib/gi18n.h> + +#include "nautilus-enum-types.h" +#include "nautilus-file-utilities.h" +#include "nautilus-global-preferences.h" + +#define RANK_SCALE_FACTOR 100 +#define MIN_RANK 10.0 +#define MAX_RANK 50.0 + +struct _NautilusQuery +{ + GObject parent; + + char *text; + GFile *location; + GPtrArray *mime_types; + gboolean show_hidden; + GPtrArray *date_range; + NautilusQueryRecursive recursive; + NautilusQuerySearchType search_type; + NautilusQuerySearchContent search_content; + + gboolean searching; + char **prepared_words; + GMutex prepared_words_mutex; +}; + +static void nautilus_query_class_init (NautilusQueryClass *class); +static void nautilus_query_init (NautilusQuery *query); + +G_DEFINE_TYPE (NautilusQuery, nautilus_query, G_TYPE_OBJECT); + +enum +{ + PROP_0, + PROP_DATE_RANGE, + PROP_LOCATION, + PROP_MIMETYPES, + PROP_RECURSIVE, + PROP_SEARCH_TYPE, + PROP_SEARCHING, + PROP_SHOW_HIDDEN, + PROP_TEXT, + LAST_PROP +}; + +static void +finalize (GObject *object) +{ + NautilusQuery *query; + + query = NAUTILUS_QUERY (object); + + g_free (query->text); + g_strfreev (query->prepared_words); + g_clear_object (&query->location); + g_clear_pointer (&query->date_range, g_ptr_array_unref); + g_mutex_clear (&query->prepared_words_mutex); + + G_OBJECT_CLASS (nautilus_query_parent_class)->finalize (object); +} + +static void +nautilus_query_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + NautilusQuery *self = NAUTILUS_QUERY (object); + + switch (prop_id) + { + case PROP_DATE_RANGE: + { + g_value_set_pointer (value, self->date_range); + } + break; + + case PROP_LOCATION: + { + g_value_set_object (value, self->location); + } + break; + + case PROP_MIMETYPES: + { + g_value_set_pointer (value, self->mime_types); + } + break; + + case PROP_RECURSIVE: + { + g_value_set_enum (value, self->recursive); + } + break; + + case PROP_SEARCH_TYPE: + { + g_value_set_enum (value, self->search_type); + } + break; + + case PROP_SEARCHING: + { + g_value_set_boolean (value, self->searching); + } + break; + + case PROP_SHOW_HIDDEN: + { + g_value_set_boolean (value, self->show_hidden); + } + break; + + case PROP_TEXT: + { + g_value_set_string (value, self->text); + } + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + } +} + +static void +nautilus_query_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + NautilusQuery *self = NAUTILUS_QUERY (object); + + switch (prop_id) + { + case PROP_DATE_RANGE: + { + nautilus_query_set_date_range (self, g_value_get_pointer (value)); + } + break; + + case PROP_LOCATION: + { + nautilus_query_set_location (self, g_value_get_object (value)); + } + break; + + case PROP_MIMETYPES: + { + nautilus_query_set_mime_types (self, g_value_get_pointer (value)); + } + break; + + case PROP_RECURSIVE: + { + nautilus_query_set_recursive (self, g_value_get_enum (value)); + } + break; + + case PROP_SEARCH_TYPE: + { + nautilus_query_set_search_type (self, g_value_get_enum (value)); + } + break; + + case PROP_SEARCHING: + { + nautilus_query_set_searching (self, g_value_get_boolean (value)); + } + break; + + case PROP_SHOW_HIDDEN: + { + nautilus_query_set_show_hidden_files (self, g_value_get_boolean (value)); + } + break; + + case PROP_TEXT: + { + nautilus_query_set_text (self, g_value_get_string (value)); + } + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + } +} + +static void +nautilus_query_class_init (NautilusQueryClass *class) +{ + GObjectClass *gobject_class; + + gobject_class = G_OBJECT_CLASS (class); + gobject_class->finalize = finalize; + gobject_class->get_property = nautilus_query_get_property; + gobject_class->set_property = nautilus_query_set_property; + + /** + * NautilusQuery::date-range: + * + * The date range of the query. + * + */ + g_object_class_install_property (gobject_class, + PROP_DATE_RANGE, + g_param_spec_pointer ("date-range", + "Date range of the query", + "The range date of the query", + G_PARAM_READWRITE)); + + /** + * NautilusQuery::location: + * + * The location of the query. + * + */ + g_object_class_install_property (gobject_class, + PROP_LOCATION, + g_param_spec_object ("location", + "Location of the query", + "The location of the query", + G_TYPE_FILE, + G_PARAM_READWRITE)); + + /** + * NautilusQuery::mimetypes: (type GPtrArray) (element-type gchar*) + * + * MIME types the query holds. An empty array means "Any type". + * + */ + g_object_class_install_property (gobject_class, + PROP_MIMETYPES, + g_param_spec_pointer ("mimetypes", + "MIME types of the query", + "The MIME types of the query", + G_PARAM_READWRITE)); + + /** + * NautilusQuery::recursive: + * + * Whether the query is being performed on subdirectories or not. + * + */ + g_object_class_install_property (gobject_class, + PROP_RECURSIVE, + g_param_spec_enum ("recursive", + "Whether the query is being performed on subdirectories", + "Whether the query is being performed on subdirectories or not", + NAUTILUS_TYPE_QUERY_RECURSIVE, + NAUTILUS_QUERY_RECURSIVE_ALWAYS, + G_PARAM_READWRITE)); + + /** + * NautilusQuery::search-type: + * + * The search type of the query. + * + */ + g_object_class_install_property (gobject_class, + PROP_SEARCH_TYPE, + g_param_spec_enum ("search-type", + "Type of the query", + "The type of the query", + NAUTILUS_TYPE_QUERY_SEARCH_TYPE, + NAUTILUS_QUERY_SEARCH_TYPE_LAST_MODIFIED, + G_PARAM_READWRITE)); + + /** + * NautilusQuery::searching: + * + * Whether the query is being performed or not. + * + */ + g_object_class_install_property (gobject_class, + PROP_SEARCHING, + g_param_spec_boolean ("searching", + "Whether the query is being performed", + "Whether the query is being performed or not", + FALSE, + G_PARAM_READWRITE)); + + /** + * NautilusQuery::show-hidden: + * + * Whether the search should include hidden files. + * + */ + g_object_class_install_property (gobject_class, + PROP_SHOW_HIDDEN, + g_param_spec_boolean ("show-hidden", + "Show hidden files", + "Whether the search should show hidden files", + FALSE, + G_PARAM_READWRITE)); + + /** + * NautilusQuery::text: + * + * The search string. + * + */ + g_object_class_install_property (gobject_class, + PROP_TEXT, + g_param_spec_string ("text", + "Text of the search", + "The text string of the search", + NULL, + G_PARAM_READWRITE)); +} + +static void +nautilus_query_init (NautilusQuery *query) +{ + query->location = g_file_new_for_path (g_get_home_dir ()); + query->mime_types = g_ptr_array_new (); + query->show_hidden = TRUE; + query->search_type = g_settings_get_enum (nautilus_preferences, "search-filter-time-type"); + query->search_content = NAUTILUS_QUERY_SEARCH_CONTENT_SIMPLE; + g_mutex_init (&query->prepared_words_mutex); +} + +static gchar * +prepare_string_for_compare (const gchar *string) +{ + gchar *normalized, *res; + + normalized = g_utf8_normalize (string, -1, G_NORMALIZE_NFD); + res = g_utf8_strdown (normalized, -1); + g_free (normalized); + + return res; +} + +gdouble +nautilus_query_matches_string (NautilusQuery *query, + const gchar *string) +{ + gchar *prepared_string, *ptr; + gboolean found; + gdouble retval; + gint idx, nonexact_malus; + + if (!query->text) + { + return -1; + } + + g_mutex_lock (&query->prepared_words_mutex); + if (!query->prepared_words) + { + prepared_string = prepare_string_for_compare (query->text); + query->prepared_words = g_strsplit (prepared_string, " ", -1); + g_free (prepared_string); + } + + prepared_string = prepare_string_for_compare (string); + found = TRUE; + ptr = NULL; + nonexact_malus = 0; + + for (idx = 0; query->prepared_words[idx] != NULL; idx++) + { + if ((ptr = strstr (prepared_string, query->prepared_words[idx])) == NULL) + { + found = FALSE; + break; + } + + nonexact_malus += strlen (ptr) - strlen (query->prepared_words[idx]); + } + g_mutex_unlock (&query->prepared_words_mutex); + + if (!found) + { + g_free (prepared_string); + return -1; + } + + /* The rank value depends on the numbers of letters before and after the match. + * To make the prefix matches prefered over sufix ones, the number of letters + * after the match is divided by a factor, so that it decreases the rank by a + * smaller amount. + */ + retval = MAX (MIN_RANK, MAX_RANK - (gdouble) (ptr - prepared_string) - (gdouble) nonexact_malus / RANK_SCALE_FACTOR); + g_free (prepared_string); + + return retval; +} + +NautilusQuery * +nautilus_query_new (void) +{ + return g_object_new (NAUTILUS_TYPE_QUERY, NULL); +} + + +char * +nautilus_query_get_text (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), NULL); + + return g_strdup (query->text); +} + +void +nautilus_query_set_text (NautilusQuery *query, + const char *text) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + g_free (query->text); + query->text = g_strstrip (g_strdup (text)); + + g_mutex_lock (&query->prepared_words_mutex); + g_strfreev (query->prepared_words); + query->prepared_words = NULL; + g_mutex_unlock (&query->prepared_words_mutex); + + g_object_notify (G_OBJECT (query), "text"); +} + +GFile * +nautilus_query_get_location (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), NULL); + + return g_object_ref (query->location); +} + +void +nautilus_query_set_location (NautilusQuery *query, + GFile *location) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + if (g_set_object (&query->location, location)) + { + g_object_notify (G_OBJECT (query), "location"); + } +} + +/** + * nautilus_query_get_mime_type: + * @query: A #NautilusQuery + * + * Retrieves the current MIME Types filter from @query. Its content must not be + * modified. It can be read by multiple threads. + * + * Returns: (transfer container) A #GPtrArray reference with MIME type name strings. + */ +GPtrArray * +nautilus_query_get_mime_types (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), NULL); + + return g_ptr_array_ref (query->mime_types); +} + +/** + * nautilus_query_set_mime_types: + * @query: A #NautilusQuery + * @mime_types: (transfer none): A #GPtrArray of MIME type strings + * + * Set a new MIME types filter for @query. Once set, the filter must not be + * modified, and it can only be replaced by setting another filter. + * + * Search engines that are already running for a previous filter will ignore the + * new filter. So, the caller must ensure that the search will be reloaded + * afterwards. + */ +void +nautilus_query_set_mime_types (NautilusQuery *query, + GPtrArray *mime_types) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + g_return_if_fail (mime_types != NULL); + + g_clear_pointer (&query->mime_types, g_ptr_array_unref); + query->mime_types = g_ptr_array_ref (mime_types); + + g_object_notify (G_OBJECT (query), "mimetypes"); +} + +gboolean +nautilus_query_get_show_hidden_files (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), FALSE); + + return query->show_hidden; +} + +void +nautilus_query_set_show_hidden_files (NautilusQuery *query, + gboolean show_hidden) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + if (query->show_hidden != show_hidden) + { + query->show_hidden = show_hidden; + g_object_notify (G_OBJECT (query), "show-hidden"); + } +} + +char * +nautilus_query_to_readable_string (NautilusQuery *query) +{ + if (!query || !query->text || query->text[0] == '\0') + { + return g_strdup (_("Search")); + } + + return g_strdup_printf (_("Search for “%s”"), query->text); +} + +NautilusQuerySearchContent +nautilus_query_get_search_content (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), -1); + + return query->search_content; +} + +void +nautilus_query_set_search_content (NautilusQuery *query, + NautilusQuerySearchContent content) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + if (query->search_content != content) + { + query->search_content = content; + g_object_notify (G_OBJECT (query), "search-type"); + } +} + +NautilusQuerySearchType +nautilus_query_get_search_type (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), -1); + + return query->search_type; +} + +void +nautilus_query_set_search_type (NautilusQuery *query, + NautilusQuerySearchType type) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + if (query->search_type != type) + { + query->search_type = type; + g_object_notify (G_OBJECT (query), "search-type"); + } +} + +/** + * nautilus_query_get_date_range: + * @query: a #NautilusQuery + * + * Retrieves the #GptrArray composed of #GDateTime representing the date range. + * This function is thread safe. + * + * Returns: (transfer full): the #GptrArray composed of #GDateTime representing the date range. + */ +GPtrArray * +nautilus_query_get_date_range (NautilusQuery *query) +{ + static GMutex mutex; + + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), NULL); + + g_mutex_lock (&mutex); + if (query->date_range) + { + g_ptr_array_ref (query->date_range); + } + g_mutex_unlock (&mutex); + + return query->date_range; +} + +void +nautilus_query_set_date_range (NautilusQuery *query, + GPtrArray *date_range) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + g_clear_pointer (&query->date_range, g_ptr_array_unref); + if (date_range) + { + query->date_range = g_ptr_array_ref (date_range); + } + + g_object_notify (G_OBJECT (query), "date-range"); +} + +gboolean +nautilus_query_get_searching (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), FALSE); + + return query->searching; +} + +void +nautilus_query_set_searching (NautilusQuery *query, + gboolean searching) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + searching = !!searching; + + if (query->searching != searching) + { + query->searching = searching; + + g_object_notify (G_OBJECT (query), "searching"); + } +} + +NautilusQueryRecursive +nautilus_query_get_recursive (NautilusQuery *query) +{ + g_return_val_if_fail (NAUTILUS_IS_QUERY (query), + NAUTILUS_QUERY_RECURSIVE_ALWAYS); + + return query->recursive; +} + +void +nautilus_query_set_recursive (NautilusQuery *query, + NautilusQueryRecursive recursive) +{ + g_return_if_fail (NAUTILUS_IS_QUERY (query)); + + if (query->recursive != recursive) + { + query->recursive = recursive; + + g_object_notify (G_OBJECT (query), "recursive"); + } +} + +gboolean +nautilus_query_is_empty (NautilusQuery *query) +{ + if (!query) + { + return TRUE; + } + + if (!query->date_range && + (!query->text || (query->text && query->text[0] == '\0')) && + query->mime_types->len == 0) + { + return TRUE; + } + + return FALSE; +} |