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Diffstat (limited to 'src/miners/fs/tracker-thumbnailer.c')
| -rw-r--r-- | src/miners/fs/tracker-thumbnailer.c | 508 |
1 files changed, 0 insertions, 508 deletions
diff --git a/src/miners/fs/tracker-thumbnailer.c b/src/miners/fs/tracker-thumbnailer.c deleted file mode 100644 index 6b678a43e..000000000 --- a/src/miners/fs/tracker-thumbnailer.c +++ /dev/null @@ -1,508 +0,0 @@ -/* - * Copyright (C) 2008, Nokia <ivan.frade@nokia.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -#include "config.h" - -#include <string.h> - -#include <libtracker-common/tracker-dbus.h> - -#include "tracker-thumbnailer.h" - -/** - * SECTION:tracker-thumbnailer - * @short_description: Request the thumbnailer service creates or - * updates thumbnails. - * @include: libtracker-miner/tracker-miner.h - * - * This is a convenience API using D-Bus for creating and updating - * thumbnails for files being mined. It is also used to create - * thumbnails for album art found embedded in some medias. - * - * This follows the thumbnailer specification: - * http://live.gnome.org/ThumbnailerSpec - **/ - -#define THUMBCACHE_SERVICE "org.freedesktop.thumbnails.Cache1" -#define THUMBCACHE_PATH "/org/freedesktop/thumbnails/Cache1" -#define THUMBCACHE_INTERFACE "org.freedesktop.thumbnails.Cache1" - -#define THUMBMAN_SERVICE "org.freedesktop.thumbnails.Thumbnailer1" -#define THUMBMAN_PATH "/org/freedesktop/thumbnails/Thumbnailer1" -#define THUMBMAN_INTERFACE "org.freedesktop.thumbnails.Thumbnailer1" - -typedef struct { - GDBusProxy *cache_proxy; - GDBusProxy *manager_proxy; - GDBusConnection *connection; - - GStrv supported_mime_types; - - GSList *removes; - GSList *moves_to; - GSList *moves_from; - - guint request_id; - gboolean service_is_available; -} TrackerThumbnailerPrivate; - -static void tracker_thumbnailer_initable_iface_init (GInitableIface *iface); - -G_DEFINE_TYPE_WITH_CODE (TrackerThumbnailer, tracker_thumbnailer, G_TYPE_OBJECT, - G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, - tracker_thumbnailer_initable_iface_init) - G_ADD_PRIVATE (TrackerThumbnailer)) - -static void -tracker_thumbnailer_finalize (GObject *object) -{ - TrackerThumbnailerPrivate *private; - TrackerThumbnailer *thumbnailer; - - thumbnailer = TRACKER_THUMBNAILER (object); - private = tracker_thumbnailer_get_instance_private (thumbnailer); - - if (private->cache_proxy) { - g_object_unref (private->cache_proxy); - } - - if (private->manager_proxy) { - g_object_unref (private->manager_proxy); - } - - if (private->connection) { - g_object_unref (private->connection); - } - - g_strfreev (private->supported_mime_types); - - g_slist_foreach (private->removes, (GFunc) g_free, NULL); - g_slist_free (private->removes); - - g_slist_foreach (private->moves_to, (GFunc) g_free, NULL); - g_slist_free (private->moves_to); - - g_slist_foreach (private->moves_from, (GFunc) g_free, NULL); - g_slist_free (private->moves_from); - - G_OBJECT_CLASS (tracker_thumbnailer_parent_class)->finalize (object); -} - -inline static gboolean -should_be_thumbnailed (GStrv list, - const gchar *mime) -{ - gboolean should_thumbnail; - guint i; - - if (!list) { - return TRUE; - } - - for (should_thumbnail = FALSE, i = 0; - should_thumbnail == FALSE && list[i] != NULL; - i++) { - if (g_ascii_strcasecmp (list[i], mime) == 0) { - should_thumbnail = TRUE; - } - } - - return should_thumbnail; -} - -static gboolean -tracker_thumbnailer_initable_init (GInitable *initable, - GCancellable *cancellable, - GError **error) -{ - TrackerThumbnailerPrivate *private; - TrackerThumbnailer *thumbnailer; - GVariant *v; - - thumbnailer = TRACKER_THUMBNAILER (initable); - private = tracker_thumbnailer_get_instance_private (thumbnailer); - - /* Don't start at 0, start at 1. */ - private->request_id = 1; - private->service_is_available = FALSE; - - g_message ("Thumbnailer connections being set up... (using same bus as Tracker, i.e. session or system)"); - - private->connection = g_bus_get_sync (TRACKER_IPC_BUS, NULL, error); - - if (!private->connection) - return FALSE; - - private->cache_proxy = g_dbus_proxy_new_sync (private->connection, - G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES, - NULL, - THUMBCACHE_SERVICE, - THUMBCACHE_PATH, - THUMBCACHE_INTERFACE, - NULL, - error); - if (!private->cache_proxy) { - g_clear_object (&private->connection); - return FALSE; - } - - private->manager_proxy = g_dbus_proxy_new_sync (private->connection, - G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES, - NULL, - THUMBMAN_SERVICE, - THUMBMAN_PATH, - THUMBMAN_INTERFACE, - NULL, - error); - - if (!private->manager_proxy) { - g_clear_object (&private->connection); - g_clear_object (&private->cache_proxy); - return FALSE; - } - - v = g_dbus_proxy_call_sync (private->manager_proxy, - "GetSupported", - NULL, - G_DBUS_CALL_FLAGS_NONE, - -1, - NULL, - error); - - if (!v) { - g_clear_object (&private->connection); - g_clear_object (&private->cache_proxy); - g_clear_object (&private->manager_proxy); - return FALSE; - } else { - GStrv mime_types = NULL; - GStrv uri_schemes = NULL; - - g_variant_get (v, "(^a&s^a&s)", &uri_schemes, &mime_types); - - if (mime_types) { - GHashTable *hash; - GHashTableIter iter; - gpointer key, value; - guint i; - - /* The table that you receive may contain duplicate mime-types, because - * they are grouped against the uri_schemes table */ - - hash = g_hash_table_new (g_str_hash, g_str_equal); - - for (i = 0; mime_types[i] != NULL; i++) { - g_hash_table_insert (hash, mime_types[i], NULL); - } - - i = g_hash_table_size (hash); - g_message ("Thumbnailer supports %d mime types", i); - - g_hash_table_iter_init (&iter, hash); - private->supported_mime_types = (GStrv) g_new0 (gchar *, i + 1); - - i = 0; - while (g_hash_table_iter_next (&iter, &key, &value)) { - private->supported_mime_types[i] = g_strdup (key); - g_debug (" %s", (gchar *) key); - i++; - } - - g_hash_table_unref (hash); - - private->service_is_available = TRUE; - } - - g_free (mime_types); - g_free (uri_schemes); - - g_variant_unref (v); - } - - return TRUE; -} - -static void -tracker_thumbnailer_initable_iface_init (GInitableIface *iface) -{ - iface->init = tracker_thumbnailer_initable_init; -} - -static void -tracker_thumbnailer_class_init (TrackerThumbnailerClass *klass) -{ - GObjectClass *object_class = G_OBJECT_CLASS (klass); - - object_class->finalize = tracker_thumbnailer_finalize; -} - -static void -tracker_thumbnailer_init (TrackerThumbnailer *thumbnailer) -{ -} - -/** - * tracker_thumbnailer_new: - * - * Creates a new #TrackerThumbnailer object that can be used to signal - * the system's thumbnailing daemon(s) via D-Bus to add or remove - * content that needs thumbnailing. - * - * For example, when mounting a USB thumb drive, content may not have - * thumbnails and this object allows the content of that thumb drive - * to be queued for processing. - * - * Returns: %TRUE if successfully stored to be reported, %FALSE otherwise. - * - * Since: 0.18. - */ -TrackerThumbnailer * -tracker_thumbnailer_new (void) -{ - return g_initable_new (TRACKER_TYPE_THUMBNAILER, NULL, NULL, NULL); -} - -/** - * tracker_thumbnailer_move_add: - * @thumbnailer: Thumbnailer object - * @from_uri: URI of the file before the move - * @mime_type: mime-type of the file - * @to_uri: URI of the file after the move - * - * Adds a new request to tell the thumbnailer that @from_uri was moved to - * @to_uri. Stored requests can be sent with tracker_thumbnailer_send(). - * - * Returns: #TRUE if successfully stored to be reported, #FALSE otherwise. - * - * Since: 0.8 - */ -gboolean -tracker_thumbnailer_move_add (TrackerThumbnailer *thumbnailer, - const gchar *from_uri, - const gchar *mime_type, - const gchar *to_uri) -{ - TrackerThumbnailerPrivate *private; - - /* mime_type can be NULL */ - g_return_val_if_fail (TRACKER_IS_THUMBNAILER (thumbnailer), FALSE); - g_return_val_if_fail (from_uri != NULL, FALSE); - g_return_val_if_fail (to_uri != NULL, FALSE); - - private = tracker_thumbnailer_get_instance_private (thumbnailer); - - if (!private->service_is_available) { - g_debug ("%s: Not thumbnailing ‘%s’ as service is unavailable.", - G_STRFUNC, from_uri); - return FALSE; - } - - if (mime_type && !should_be_thumbnailed (private->supported_mime_types, mime_type)) { - g_debug ("%s: Not thumbnailing ‘%s’ as MIME type ‘%s’ should " - "not be thumbnailed.", G_STRFUNC, from_uri, mime_type); - return FALSE; - } - - private->moves_from = g_slist_prepend (private->moves_from, g_strdup (from_uri)); - private->moves_to = g_slist_prepend (private->moves_to, g_strdup (to_uri)); - - g_debug ("Thumbnailer request to move uri from:'%s' to:'%s' queued", - from_uri, - to_uri); - - return TRUE; -} - -/** - * tracker_thumbnailer_remove_add: - * @thumbnailer: Thumbnailer object - * @uri: URI of the file - * @mime_type: mime-type of the file - * - * Adds a new request to tell the thumbnailer that @uri was removed. - * Stored requests can be sent with tracker_thumbnailer_send(). - * - * Returns: #TRUE if successfully stored to be reported, #FALSE otherwise. - * - * Since: 0.8 - */ -gboolean -tracker_thumbnailer_remove_add (TrackerThumbnailer *thumbnailer, - const gchar *uri, - const gchar *mime_type) -{ - TrackerThumbnailerPrivate *private; - - g_return_val_if_fail (TRACKER_IS_THUMBNAILER (thumbnailer), FALSE); - /* mime_type can be NULL */ - g_return_val_if_fail (uri != NULL, FALSE); - - private = tracker_thumbnailer_get_instance_private (thumbnailer); - - if (!private->service_is_available) { - g_debug ("%s: Not thumbnailing ‘%s’ as service is unavailable.", - G_STRFUNC, uri); - return FALSE; - } - - if (mime_type && !should_be_thumbnailed (private->supported_mime_types, mime_type)) { - g_debug ("%s: Not thumbnailing ‘%s’ as MIME type ‘%s’ should " - "not be thumbnailed.", G_STRFUNC, uri, mime_type); - return FALSE; - } - - private->removes = g_slist_prepend (private->removes, g_strdup (uri)); - - g_debug ("Thumbnailer request to remove uri:'%s', appended to queue", uri); - - return TRUE; -} - -/** - * tracker_thumbnailer_cleanup: - * @thumbnailer: Thumbnailer object - * @uri_prefix: URI prefix - * - * Tells thumbnailer to cleanup all thumbnails under @uri_prefix. - * - * Returns: #TRUE if successfully reported, #FALSE otherwise. - * - * Since: 0.8 - */ -gboolean -tracker_thumbnailer_cleanup (TrackerThumbnailer *thumbnailer, - const gchar *uri_prefix) -{ - TrackerThumbnailerPrivate *private; - - g_return_val_if_fail (TRACKER_IS_THUMBNAILER (thumbnailer), FALSE); - g_return_val_if_fail (uri_prefix != NULL, FALSE); - - private = tracker_thumbnailer_get_instance_private (thumbnailer); - - if (!private->service_is_available) { - return FALSE; - } - - private->request_id++; - - g_debug ("Thumbnailer cleaning up uri:'%s', request_id:%d...", - uri_prefix, - private->request_id); - - g_dbus_proxy_call (private->cache_proxy, - "Cleanup", - g_variant_new ("(s)", uri_prefix), - G_DBUS_CALL_FLAGS_NONE, - -1, - NULL, - NULL, - NULL); - - return TRUE; -} - -/** - * tracker_thumbnailer_send: - * @thumbnailer: Thumbnailer object - * - * Sends to the thumbnailer all stored requests. - * - * Since: 0.8 - */ -void -tracker_thumbnailer_send (TrackerThumbnailer *thumbnailer) -{ - TrackerThumbnailerPrivate *private; - guint list_len; - - g_return_if_fail (TRACKER_IS_THUMBNAILER (thumbnailer)); - - private = tracker_thumbnailer_get_instance_private (thumbnailer); - - if (!private->service_is_available) { - return; - } - - list_len = g_slist_length (private->removes); - - if (list_len > 0) { - GStrv uri_strv; - - uri_strv = tracker_dbus_slist_to_strv (private->removes); - - g_dbus_proxy_call (private->cache_proxy, - "Delete", - g_variant_new ("(^as)", uri_strv), - G_DBUS_CALL_FLAGS_NONE, - -1, - NULL, - NULL, - NULL); - - g_message ("Thumbnailer removes queue sent with %d items to thumbnailer daemon, request ID:%d...", - list_len, - private->request_id++); - - /* Clean up newly created GStrv */ - g_strfreev (uri_strv); - - /* Clean up privately held data */ - g_slist_foreach (private->removes, (GFunc) g_free, NULL); - g_slist_free (private->removes); - private->removes = NULL; - } - - list_len = g_slist_length (private->moves_from); - - if (list_len > 0) { - GStrv from_strv, to_strv; - - g_assert (list_len == g_slist_length (private->moves_to)); - - from_strv = tracker_dbus_slist_to_strv (private->moves_from); - to_strv = tracker_dbus_slist_to_strv (private->moves_to); - - g_dbus_proxy_call (private->cache_proxy, - "Move", - g_variant_new ("(^as^as)", from_strv, to_strv), - G_DBUS_CALL_FLAGS_NONE, - -1, - NULL, - NULL, - NULL); - - g_message ("Thumbnailer moves queue sent with %d items to thumbnailer daemon, request ID:%d...", - list_len, - private->request_id++); - - /* Clean up newly created GStrv */ - g_strfreev (from_strv); - g_strfreev (to_strv); - - /* Clean up privately held data */ - g_slist_foreach (private->moves_from, (GFunc) g_free, NULL); - g_slist_free (private->moves_from); - private->moves_from = NULL; - - g_slist_foreach (private->moves_to, (GFunc) g_free, NULL); - g_slist_free (private->moves_to); - private->moves_to = NULL; - } -} |