update to latest thumbnail spec (code taken from gnome-desktop)

author: Stefano Karapetsas <[email protected]> 2012-09-03 15:45:37 +0200
committer: Stefano Karapetsas <[email protected]> 2012-09-03 15:45:37 +0200
commit: f2ce79172dea2db12a1d85f441990e8b56cae225 (patch)
tree: 4deb1ae5eef76ff0d256d74b755220da3f020c9c
parent: 1555690252d2066edf6297e3a9e579ae522c2ada (diff)
download: mate-desktop-f2ce79172dea2db12a1d85f441990e8b56cae225.tar.bz2
mate-desktop-f2ce79172dea2db12a1d85f441990e8b56cae225.tar.xz
1 files changed, 652 insertions, 270 deletions
diff --git a/libmate-desktop/mate-desktop-thumbnail.c b/libmate-desktop/mate-desktop-thumbnail.c
index 8b45bab..2911ef5 100644
--- a/libmate-desktop/mate-desktop-thumbnail.c
+++ b/libmate-desktop/mate-desktop-thumbnail.c
@@ -2,6 +2,7 @@
 * mate-thumbnail.c: Utilities for handling thumbnails
 *
 * Copyright (C) 2002 Red Hat, Inc.
+ * Copyright (C) 2010 Carlos Garcia Campos <[email protected]>
 *
 * This file is part of the Mate Library.
 *
@@ -17,8 +18,8 @@
 *
 * You should have received a copy of the GNU Library General Public
 * License along with the Mate Library; see the file COPYING.LIB. If not,
- * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
 *
 * Author: Alexander Larsson <[email protected]>
 */
@@ -41,60 +42,234 @@
 
 #define MATE_DESKTOP_USE_UNSTABLE_API
 #include "libmateui/mate-desktop-thumbnail.h"
-#include <mateconf/mateconf.h>
-#include <mateconf/mateconf-client.h>
 #include <glib/gstdio.h>
+#include <gio/gunixinputstream.h>
+#include <glib-unix.h>
 
 #define SECONDS_BETWEEN_STATS 10
 
 struct _MateDesktopThumbnailFactoryPrivate {
- MateDesktopThumbnailSize size;
+ MateDesktopThumbnailSize size;
 
- GMutex* lock;
+ GMutex lock;
 
- GHashTable *scripts_hash;
- guint thumbnailers_notify;
- guint reread_scheduled;
-};
+ GList *thumbnailers;
+ GHashTable *mime_types_map;
+ GList *monitors;
 
-static const char* appname = "mate-thumbnail-factory";
+ GSettings *settings;
+ gboolean loaded : 1;
+ gboolean disabled : 1;
+ gchar **disabled_types;
+};
 
-static void mate_desktop_thumbnail_factory_init(MateDesktopThumbnailFactory* factory);
-static void mate_desktop_thumbnail_factory_class_init(MateDesktopThumbnailFactoryClass* class);
+static const char *appname = "mate-thumbnail-factory";
 
-G_DEFINE_TYPE (MateDesktopThumbnailFactory, mate_desktop_thumbnail_factory, G_TYPE_OBJECT)
+static void mate_desktop_thumbnail_factory_init (MateDesktopThumbnailFactory *factory);
+static void mate_desktop_thumbnail_factory_class_init (MateDesktopThumbnailFactoryClass *class);
 
+G_DEFINE_TYPE (MateDesktopThumbnailFactory,
+ mate_desktop_thumbnail_factory,
+ G_TYPE_OBJECT)
 #define parent_class mate_desktop_thumbnail_factory_parent_class
 
 #define MATE_DESKTOP_THUMBNAIL_FACTORY_GET_PRIVATE(object) \
- (G_TYPE_INSTANCE_GET_PRIVATE((object), MATE_DESKTOP_TYPE_THUMBNAIL_FACTORY, MateDesktopThumbnailFactoryPrivate))
+ (G_TYPE_INSTANCE_GET_PRIVATE ((object), MATE_DESKTOP_TYPE_THUMBNAIL_FACTORY, MateDesktopThumbnailFactoryPrivate))
 
 typedef struct {
- gint width;
- gint height;
- gint input_width;
- gint input_height;
- gboolean preserve_aspect_ratio;
+ gint width;
+ gint height;
+ gint input_width;
+ gint input_height;
+ gboolean preserve_aspect_ratio;
 } SizePrepareContext;
 
 #define LOAD_BUFFER_SIZE 4096
 
+#define THUMBNAILER_ENTRY_GROUP "Thumbnailer Entry"
+#define THUMBNAILER_EXTENSION ".thumbnailer"
+
+typedef struct {
+ volatile gint ref_count;
+
+ gchar *path;
+
+ gchar *try_exec;
+ gchar *command;
+ gchar **mime_types;
+} Thumbnailer;
+
+static Thumbnailer *
+thumbnailer_ref (Thumbnailer *thumb)
+{
+ g_return_val_if_fail (thumb != NULL, NULL);
+ g_return_val_if_fail (thumb->ref_count > 0, NULL);
+
+ g_atomic_int_inc (&thumb->ref_count);
+ return thumb;
+}
+
+static void
+thumbnailer_unref (Thumbnailer *thumb)
+{
+ g_return_if_fail (thumb != NULL);
+ g_return_if_fail (thumb->ref_count > 0);
+
+ if (g_atomic_int_dec_and_test (&thumb->ref_count))
+ {
+ g_free (thumb->path);
+ g_free (thumb->try_exec);
+ g_free (thumb->command);
+ g_strfreev (thumb->mime_types);
+
+ g_slice_free (Thumbnailer, thumb);
+ }
+}
+
+static Thumbnailer *
+thumbnailer_load (Thumbnailer *thumb)
+{
+ GKeyFile *key_file;
+ GError *error = NULL;
+
+ key_file = g_key_file_new ();
+ if (!g_key_file_load_from_file (key_file, thumb->path, 0, &error))
+ {
+ g_warning ("Failed to load thumbnailer from \"%s\": %s\n", thumb->path, error->message);
+ g_error_free (error);
+ thumbnailer_unref (thumb);
+ g_key_file_free (key_file);
+
+ return NULL;
+ }
+
+ if (!g_key_file_has_group (key_file, THUMBNAILER_ENTRY_GROUP))
+ {
+ g_warning ("Invalid thumbnailer: missing group \"%s\"\n", THUMBNAILER_ENTRY_GROUP);
+ thumbnailer_unref (thumb);
+ g_key_file_free (key_file);
+
+ return NULL;
+ }
+
+ thumb->command = g_key_file_get_string (key_file, THUMBNAILER_ENTRY_GROUP, "Exec", NULL);
+ if (!thumb->command)
+ {
+ g_warning ("Invalid thumbnailer: missing Exec key\n");
+ thumbnailer_unref (thumb);
+ g_key_file_free (key_file);
+
+ return NULL;
+ }
+
+ thumb->mime_types = g_key_file_get_string_list (key_file, THUMBNAILER_ENTRY_GROUP, "MimeType", NULL, NULL);
+ if (!thumb->mime_types)
+ {
+ g_warning ("Invalid thumbnailer: missing MimeType key\n");
+ thumbnailer_unref (thumb);
+ g_key_file_free (key_file);
+
+ return NULL;
+ }
+
+ thumb->try_exec = g_key_file_get_string (key_file, THUMBNAILER_ENTRY_GROUP, "TryExec", NULL);
+
+ g_key_file_free (key_file);
+
+ return thumb;
+}
+
+static Thumbnailer *
+thumbnailer_reload (Thumbnailer *thumb)
+{
+ g_return_val_if_fail (thumb != NULL, NULL);
+
+ g_free (thumb->command);
+ thumb->command = NULL;
+ g_strfreev (thumb->mime_types);
+ thumb->mime_types = NULL;
+ g_free (thumb->try_exec);
+ thumb->try_exec = NULL;
+
+ return thumbnailer_load (thumb);
+}
+
+static Thumbnailer *
+thumbnailer_new (const gchar *path)
+{
+ Thumbnailer *thumb;
+
+ thumb = g_slice_new0 (Thumbnailer);
+ thumb->ref_count = 1;
+ thumb->path = g_strdup (path);
+
+ return thumbnailer_load (thumb);
+}
+
+static gboolean
+thumbnailer_try_exec (Thumbnailer *thumb)
+{
+ gchar *path;
+ gboolean retval;
+
+ if (G_UNLIKELY (!thumb))
+ return FALSE;
+
+ /* TryExec is optinal, but Exec isn't, so we assume
+ * the thumbnailer can be run when TryExec is not present
+ */
+ if (!thumb->try_exec)
+ return TRUE;
+
+ path = g_find_program_in_path (thumb->try_exec);
+ retval = path != NULL;
+ g_free (path);
+
+ return retval;
+}
+
+static gpointer
+init_thumbnailers_dirs (gpointer data)
+{
+ const gchar * const *data_dirs;
+ gchar **thumbs_dirs;
+ guint i, length;
+
+ data_dirs = g_get_system_data_dirs ();
+ length = g_strv_length ((char **) data_dirs);
+
+ thumbs_dirs = g_new (gchar *, length + 2);
+ thumbs_dirs[0] = g_build_filename (g_get_user_data_dir (), "thumbnailers", NULL);
+ for (i = 0; i < length; i++)
+ thumbs_dirs[i + 1] = g_build_filename (data_dirs[i], "thumbnailers", NULL);
+ thumbs_dirs[length + 1] = NULL;
+
+ return thumbs_dirs;
+}
+
+static const gchar * const *
+get_thumbnailers_dirs (void)
+{
+ static GOnce once_init = G_ONCE_INIT;
+ return g_once (&once_init, init_thumbnailers_dirs, NULL);
+}
+
 static void
-size_prepared_cb (GdkPixbufLoader *loader,
+size_prepared_cb (GdkPixbufLoader *loader, 
 int width,
 int height,
 gpointer data)
 {
 SizePrepareContext *info = data;
-
+ 
 g_return_if_fail (width > 0 && height > 0);
-
+ 
 info->input_width = width;
 info->input_height = height;
-
+ 
 if (width < info->width && height < info->height) return;
-
- if (info->preserve_aspect_ratio &&
+ 
+ if (info->preserve_aspect_ratio && 
 (info->width > 0 || info->height > 0)) {
 if (info->width < 0)
 {
@@ -120,10 +295,43 @@ size_prepared_cb (GdkPixbufLoader *loader,
 if (info->height > 0)
 height = info->height;
 }
-
+ 
 gdk_pixbuf_loader_set_size (loader, width, height);
 }
 
+static GdkPixbufLoader *
+create_loader (GFile *file,
+ const guchar *data,
+ gsize size)
+{
+ GdkPixbufLoader *loader;
+ GError *error = NULL;
+ char *mime_type;
+ char *filename;
+
+ loader = NULL;
+
+ /* need to specify the type here because the gdk_pixbuf_loader_write
+ doesn't have access to the filename in order to correct detect
+ the image type. */
+ filename = g_file_get_basename (file);
+ mime_type = g_content_type_guess (filename, data, size, NULL);
+ g_free (filename);
+
+ if (mime_type != NULL) {
+ loader = gdk_pixbuf_loader_new_with_mime_type (mime_type, &error);
+ }
+
+ if (loader == NULL) {
+ g_warning ("Unable to create loader for mime type %s: %s", mime_type, error->message);
+ g_clear_error (&error);
+ loader = gdk_pixbuf_loader_new ();
+ }
+ g_free (mime_type);
+
+ return loader;
+}
+
 static GdkPixbuf *
 _gdk_pixbuf_new_from_uri_at_scale (const char *uri,
 gint width,
@@ -131,10 +339,10 @@ _gdk_pixbuf_new_from_uri_at_scale (const char *uri,
 gboolean preserve_aspect_ratio)
 {
 gboolean result;
- char buffer[LOAD_BUFFER_SIZE];
+ guchar buffer[LOAD_BUFFER_SIZE];
 gsize bytes_read;
- GdkPixbufLoader *loader;
- GdkPixbuf *pixbuf;
+ GdkPixbufLoader *loader = NULL;
+ GdkPixbuf *pixbuf; 
 GdkPixbufAnimation *animation;
 GdkPixbufAnimationIter *iter;
 gboolean has_frame;
@@ -142,6 +350,7 @@ _gdk_pixbuf_new_from_uri_at_scale (const char *uri,
 GFile *file;
 GFileInfo *file_info;
 GInputStream *input_stream;
+ GError *error = NULL;
 
 g_return_val_if_fail (uri != NULL, NULL);
 
@@ -171,22 +380,30 @@ _gdk_pixbuf_new_from_uri_at_scale (const char *uri,
 }
 
 if (input_stream == NULL) {
- input_stream = G_INPUT_STREAM (g_file_read (file, NULL, NULL));
- if (input_stream == NULL) {
- g_object_unref (file);
- return NULL;
+ /* part of this code is taken from libgsystem */
+ int fd;
+ char *path = g_file_get_path (file);
+ #ifdef O_NOATIME
+ fd = g_open (path, O_RDONLY | O_NOATIME, 0);
+ /* Only the owner or superuser may use O_NOATIME; so we may get
+ * EPERM. EINVAL may happen if the kernel is really old...
+ */
+ if (fd == -1 && (errno == EPERM || errno == EINVAL))
+ #endif
+ fd = g_open (path, O_RDONLY, 0);
+ if (fd >= 0) {
+ input_stream = g_unix_input_stream_new (fd, TRUE);
+ if (input_stream == NULL) {
+ if (error != NULL) {
+ g_warning ("Unable to create an input stream for %s: %s", uri, error->message);
+ g_clear_error (&error);
+ }
+ g_object_unref (file);
+ return NULL;
+ }
 }
 }
 
- loader = gdk_pixbuf_loader_new ();
- if (1 <= width || 1 <= height) {
- info.width = width;
- info.height = height;
- info.input_width = info.input_height = 0;
- info.preserve_aspect_ratio = preserve_aspect_ratio;
- g_signal_connect (loader, "size-prepared", G_CALLBACK (size_prepared_cb), &info);
- }
-
 has_frame = FALSE;
 
 result = FALSE;
@@ -196,7 +413,11 @@ _gdk_pixbuf_new_from_uri_at_scale (const char *uri,
 buffer,
 sizeof (buffer),
 NULL,
- NULL);
+ &error);
+ if (error != NULL) {
+ g_warning ("Error reading from %s: %s", uri, error->message);
+ g_clear_error (&error);
+ }
 if (bytes_read == -1) {
 break;
 }
@@ -205,10 +426,24 @@ _gdk_pixbuf_new_from_uri_at_scale (const char *uri,
 break;
 }
 
+ if (loader == NULL) {
+ loader = create_loader (file, buffer, bytes_read);
+ if (1 <= width || 1 <= height) {
+ info.width = width;
+ info.height = height;
+ info.input_width = info.input_height = 0;
+ info.preserve_aspect_ratio = preserve_aspect_ratio;
+ g_signal_connect (loader, "size-prepared", G_CALLBACK (size_prepared_cb), &info);
+ }
+ g_assert (loader != NULL);
+ }
+
 if (!gdk_pixbuf_loader_write (loader,
 (unsigned char *)buffer,
 bytes_read,
- NULL)) {
+ &error)) {
+ g_warning ("Error creating thumbnail for %s: %s", uri, error->message);
+ g_clear_error (&error);
 result = FALSE;
 break;
 }
@@ -255,199 +490,338 @@ mate_desktop_thumbnail_factory_finalize (GObject *object)
 {
 MateDesktopThumbnailFactory *factory;
 MateDesktopThumbnailFactoryPrivate *priv;
- MateConfClient *client;
-
+ 
 factory = MATE_DESKTOP_THUMBNAIL_FACTORY (object);
 
 priv = factory->priv;
 
- if (priv->reread_scheduled != 0) {
- g_source_remove (priv->reread_scheduled);
- priv->reread_scheduled = 0;
- }
+ if (priv->thumbnailers)
+ {
+ g_list_free_full (priv->thumbnailers, (GDestroyNotify)thumbnailer_unref);
+ priv->thumbnailers = NULL;
+ }
 
- if (priv->thumbnailers_notify != 0) {
- client = mateconf_client_get_default ();
- mateconf_client_notify_remove (client, priv->thumbnailers_notify);
- priv->thumbnailers_notify = 0;
- g_object_unref (client);
- }
+ if (priv->mime_types_map)
+ {
+ g_hash_table_destroy (priv->mime_types_map);
+ priv->mime_types_map = NULL;
+ }
 
- if (priv->scripts_hash)
+ if (priv->monitors)
 {
- g_hash_table_destroy (priv->scripts_hash);
- priv->scripts_hash = NULL;
+ g_list_free_full (priv->monitors, (GDestroyNotify)g_object_unref);
+ priv->monitors = NULL;
 }
 
- if (priv->lock)
+ g_mutex_clear (&priv->lock);
+
+ if (priv->disabled_types)
 {
- g_mutex_free (priv->lock);
- priv->lock = NULL;
+ g_strfreev (priv->disabled_types);
+ priv->disabled_types = NULL;
+ }
+
+ if (priv->settings)
+ {
+ g_object_unref (priv->settings);
+ priv->settings = NULL;
 }
 
 if (G_OBJECT_CLASS (parent_class)->finalize)
 (* G_OBJECT_CLASS (parent_class)->finalize) (object);
 }
 
-/* Must be called on main thread */
-static GHashTable *
-read_scripts (void)
+/* These should be called with the lock held */
+static void
+mate_desktop_thumbnail_factory_register_mime_types (MateDesktopThumbnailFactory *factory,
+ Thumbnailer *thumb)
 {
- GHashTable *scripts_hash;
- MateConfClient *client;
- GSList *subdirs, *l;
- char *subdir, *enable, *escape, *commandkey, *command, *mimetype;
-
- client = mateconf_client_get_default ();
+ MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
+ gint i;
 
- if (mateconf_client_get_bool (client,
- "/desktop/mate/thumbnailers/disable_all",
- NULL))
+ for (i = 0; thumb->mime_types[i]; i++)
 {
- g_object_unref (G_OBJECT (client));
- return NULL;
+ if (!g_hash_table_lookup (priv->mime_types_map, thumb->mime_types[i]))
+ g_hash_table_insert (priv->mime_types_map,
+ g_strdup (thumb->mime_types[i]),
+ thumbnailer_ref (thumb));
 }
+}
 
- scripts_hash = g_hash_table_new_full (g_str_hash,
- g_str_equal,
- g_free, g_free);
+static void
+mate_desktop_thumbnail_factory_add_thumbnailer (MateDesktopThumbnailFactory *factory,
+ Thumbnailer *thumb)
+{
+ MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
 
+ mate_desktop_thumbnail_factory_register_mime_types (factory, thumb);
+ priv->thumbnailers = g_list_prepend (priv->thumbnailers, thumb);
+}
 
- subdirs = mateconf_client_all_dirs (client, "/desktop/mate/thumbnailers", NULL);
+static gboolean
+mate_desktop_thumbnail_factory_is_disabled (MateDesktopThumbnailFactory *factory,
+ const gchar *mime_type)
+{
+ MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
+ guint i;
 
- for (l = subdirs; l != NULL; l = l->next)
- {
- subdir = l->data;
+ if (priv->disabled)
+ return TRUE;
 
- enable = g_strdup_printf ("%s/enable", subdir);
- if (mateconf_client_get_bool (client,
- enable,
- NULL))
- {
- commandkey = g_strdup_printf ("%s/command", subdir);
- command = mateconf_client_get_string (client, commandkey, NULL);
- g_free (commandkey);
-
- if (command != NULL) {
- mimetype = strrchr (subdir, '/');
- if (mimetype != NULL)
- {
- mimetype++; /* skip past slash */
-
- /* Convert '@' to slash in mimetype */
- escape = strchr (mimetype, '@');
- if (escape != NULL)
- *escape = '/';
-
- /* Convert any remaining '@' to '+' in mimetype */
- while ((escape = strchr (mimetype, '@')) != NULL)
- *escape = '+';
-
- g_hash_table_insert (scripts_hash,
- g_strdup (mimetype), command);
- }
- else
- {
- g_free (command);
- }
- }
- }
- g_free (enable);
+ if (!priv->disabled_types)
+ return FALSE;
 
- g_free (subdir);
+ for (i = 0; priv->disabled_types[i]; i++)
+ {
+ if (g_strcmp0 (priv->disabled_types[i], mime_type) == 0)
+ return TRUE;
 }
 
- g_slist_free(subdirs);
-
- g_object_unref (G_OBJECT (client));
+ return FALSE;
+}
 
- return scripts_hash;
+static gboolean
+remove_thumbnailer_from_mime_type_map (gchar *key,
+ Thumbnailer *value,
+ gchar *path)
+{
+ return (strcmp (value->path, path) == 0);
 }
 
 
-/* Must be called on main thread */
 static void
-mate_desktop_thumbnail_factory_reread_scripts (MateDesktopThumbnailFactory *factory)
+update_or_create_thumbnailer (MateDesktopThumbnailFactory *factory,
+ const gchar *path)
 {
 MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
- GHashTable *scripts_hash;
+ GList *l;
+ Thumbnailer *thumb;
+ gboolean found = FALSE;
 
- scripts_hash = read_scripts ();
+ g_mutex_lock (&priv->lock);
 
- g_mutex_lock (priv->lock);
+ for (l = priv->thumbnailers; l && !found; l = g_list_next (l))
+ {
+ thumb = (Thumbnailer *)l->data;
 
- if (priv->scripts_hash != NULL)
- g_hash_table_destroy (priv->scripts_hash);
+ if (strcmp (thumb->path, path) == 0)
+ {
+ found = TRUE;
+
+ /* First remove the mime_types associated to this thumbnailer */
+ g_hash_table_foreach_remove (priv->mime_types_map,
+ (GHRFunc)remove_thumbnailer_from_mime_type_map,
+ (gpointer)path);
+ if (!thumbnailer_reload (thumb))
+ priv->thumbnailers = g_list_delete_link (priv->thumbnailers, l);
+ else
+ mate_desktop_thumbnail_factory_register_mime_types (factory, thumb);
+ }
+ }
 
- priv->scripts_hash = scripts_hash;
+ if (!found)
+ {
+ thumb = thumbnailer_new (path);
+ if (thumb)
+ mate_desktop_thumbnail_factory_add_thumbnailer (factory, thumb);
+ }
 
- g_mutex_unlock (priv->lock);
+ g_mutex_unlock (&priv->lock);
 }
 
-static gboolean
-reread_idle_callback (gpointer user_data)
+static void
+remove_thumbnailer (MateDesktopThumbnailFactory *factory,
+ const gchar *path)
 {
- MateDesktopThumbnailFactory *factory = user_data;
 MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
+ GList *l;
+ Thumbnailer *thumb;
 
- mate_desktop_thumbnail_factory_reread_scripts (factory);
+ g_mutex_lock (&priv->lock);
 
- g_mutex_lock (priv->lock);
- priv->reread_scheduled = 0;
- g_mutex_unlock (priv->lock);
+ for (l = priv->thumbnailers; l; l = g_list_next (l))
+ {
+ thumb = (Thumbnailer *)l->data;
 
- return FALSE;
+ if (strcmp (thumb->path, path) == 0)
+ {
+ priv->thumbnailers = g_list_delete_link (priv->thumbnailers, l);
+ g_hash_table_foreach_remove (priv->mime_types_map,
+ (GHRFunc)remove_thumbnailer_from_mime_type_map,
+ (gpointer)path);
+ thumbnailer_unref (thumb);
+
+ break;
+ }
+ }
+
+ g_mutex_unlock (&priv->lock);
+}
+
+static void
+thumbnailers_directory_changed (GFileMonitor *monitor,
+ GFile *file,
+ GFile *other_file,
+ GFileMonitorEvent event_type,
+ MateDesktopThumbnailFactory *factory)
+{
+ gchar *path;
+
+ switch (event_type)
+ {
+ case G_FILE_MONITOR_EVENT_CREATED:
+ case G_FILE_MONITOR_EVENT_CHANGED:
+ case G_FILE_MONITOR_EVENT_DELETED:
+ path = g_file_get_path (file);
+ if (!g_str_has_suffix (path, THUMBNAILER_EXTENSION))
+ {
+ g_free (path);
+ return;
+ }
+
+ if (event_type == G_FILE_MONITOR_EVENT_DELETED)
+ remove_thumbnailer (factory, path);
+ else
+ update_or_create_thumbnailer (factory, path);
+
+ g_free (path);
+ break;
+ default:
+ break;
+ }
 }
 
 static void
-schedule_reread (MateConfClient* client,
- guint cnxn_id,
- MateConfEntry *entry,
- gpointer user_data)
+mate_desktop_thumbnail_factory_load_thumbnailers (MateDesktopThumbnailFactory *factory)
 {
- MateDesktopThumbnailFactory *factory = user_data;
 MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
+ const gchar * const *dirs;
+ guint i;
 
- g_mutex_lock (priv->lock);
+ if (priv->loaded)
+ return;
 
- if (priv->reread_scheduled == 0)
+ dirs = get_thumbnailers_dirs ();
+ for (i = 0; dirs[i]; i++)
 {
- priv->reread_scheduled = g_idle_add (reread_idle_callback,
- factory);
+ const gchar *path = dirs[i];
+ GDir *dir;
+ GFile *dir_file;
+ GFileMonitor *monitor;
+ const gchar *dirent;
+
+ dir = g_dir_open (path, 0, NULL);
+ if (!dir)
+ continue;
+
+ /* Monitor dir */
+ dir_file = g_file_new_for_path (path);
+ monitor = g_file_monitor_directory (dir_file,
+ G_FILE_MONITOR_NONE,
+ NULL, NULL);
+ if (monitor)
+ {
+ g_signal_connect (monitor, "changed",
+ G_CALLBACK (thumbnailers_directory_changed),
+ factory);
+ priv->monitors = g_list_prepend (priv->monitors, monitor);
+ }
+ g_object_unref (dir_file);
+
+ while ((dirent = g_dir_read_name (dir)))
+ {
+ Thumbnailer *thumb;
+ gchar *filename;
+
+ if (!g_str_has_suffix (dirent, THUMBNAILER_EXTENSION))
+ continue;
+
+ filename = g_build_filename (path, dirent, NULL);
+ thumb = thumbnailer_new (filename);
+ g_free (filename);
+
+ if (thumb)
+ mate_desktop_thumbnail_factory_add_thumbnailer (factory, thumb);
+ }
+
+ g_dir_close (dir);
 }
 
- g_mutex_unlock (priv->lock);
+ priv->loaded = TRUE;
 }
 
-
 static void
-mate_desktop_thumbnail_factory_init (MateDesktopThumbnailFactory *factory)
+external_thumbnailers_disabled_all_changed_cb (GSettings *settings,
+ const gchar *key,
+ MateDesktopThumbnailFactory *factory)
 {
- MateConfClient *client;
- MateDesktopThumbnailFactoryPrivate *priv;
+ MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
 
- factory->priv = MATE_DESKTOP_THUMBNAIL_FACTORY_GET_PRIVATE (factory);
+ g_mutex_lock (&priv->lock);
 
- priv = factory->priv;
+ priv->disabled = g_settings_get_boolean (priv->settings, "disable-all");
+ if (priv->disabled)
+ {
+ g_strfreev (priv->disabled_types);
+ priv->disabled_types = NULL;
+ }
+ else
+ {
+ priv->disabled_types = g_settings_get_strv (priv->settings, "disable");
+ mate_desktop_thumbnail_factory_load_thumbnailers (factory);
+ }
 
- priv->size = MATE_DESKTOP_THUMBNAIL_SIZE_NORMAL;
+ g_mutex_unlock (&priv->lock);
+}
 
- priv->scripts_hash = NULL;
+static void
+external_thumbnailers_disabled_changed_cb (GSettings *settings,
+ const gchar *key,
+ MateDesktopThumbnailFactory *factory)
+{
+ MateDesktopThumbnailFactoryPrivate *priv = factory->priv;
 
- priv->lock = g_mutex_new ();
+ g_mutex_lock (&priv->lock);
 
- client = mateconf_client_get_default ();
- mateconf_client_add_dir (client,
- "/desktop/mate/thumbnailers",
- MATECONF_CLIENT_PRELOAD_RECURSIVE, NULL);
+ if (priv->disabled)
+ return;
+ g_strfreev (priv->disabled_types);
+ priv->disabled_types = g_settings_get_strv (priv->settings, "disable");
 
- mate_desktop_thumbnail_factory_reread_scripts (factory);
+ g_mutex_unlock (&priv->lock);
+}
 
- priv->thumbnailers_notify = mateconf_client_notify_add (client, "/desktop/mate/thumbnailers",
- schedule_reread, factory, NULL,
- NULL);
+static void
+mate_desktop_thumbnail_factory_init (MateDesktopThumbnailFactory *factory)
+{
+ MateDesktopThumbnailFactoryPrivate *priv;
+ 
+ factory->priv = MATE_DESKTOP_THUMBNAIL_FACTORY_GET_PRIVATE (factory);
 
- g_object_unref (G_OBJECT (client));
+ priv = factory->priv;
+
+ priv->size = MATE_DESKTOP_THUMBNAIL_SIZE_NORMAL;
+ 
+ priv->mime_types_map = g_hash_table_new_full (g_str_hash,
+ g_str_equal,
+ (GDestroyNotify)g_free,
+ (GDestroyNotify)thumbnailer_unref);
+ 
+ g_mutex_init (&priv->lock);
+
+ priv->settings = g_settings_new ("org.mate.desktop.thumbnailers");
+ priv->disabled = g_settings_get_boolean (priv->settings, "disable-all");
+ if (!priv->disabled)
+ priv->disabled_types = g_settings_get_strv (priv->settings, "disable");
+ g_signal_connect (priv->settings, "changed::disable-all",
+ G_CALLBACK (external_thumbnailers_disabled_all_changed_cb),
+ factory);
+ g_signal_connect (priv->settings, "changed::disable",
+ G_CALLBACK (external_thumbnailers_disabled_changed_cb),
+ factory);
+
+ if (!priv->disabled)
+ mate_desktop_thumbnail_factory_load_thumbnailers (factory);
 }
 
 static void
@@ -456,7 +830,7 @@ mate_desktop_thumbnail_factory_class_init (MateDesktopThumbnailFactoryClass *cla
 GObjectClass *gobject_class;
 
 gobject_class = G_OBJECT_CLASS (class);
-
+ 
 gobject_class->finalize = mate_desktop_thumbnail_factory_finalize;
 
 g_type_class_add_private (class, sizeof (MateDesktopThumbnailFactoryPrivate));
@@ -469,7 +843,7 @@ mate_desktop_thumbnail_factory_class_init (MateDesktopThumbnailFactoryClass *cla
 * Creates a new #MateDesktopThumbnailFactory.
 *
 * This function must be called on the main thread.
- *
+ * 
 * Return value: a new #MateDesktopThumbnailFactory
 *
 * Since: 2.2
@@ -478,11 +852,11 @@ MateDesktopThumbnailFactory *
 mate_desktop_thumbnail_factory_new (MateDesktopThumbnailSize size)
 {
 MateDesktopThumbnailFactory *factory;
-
+ 
 factory = g_object_new (MATE_DESKTOP_TYPE_THUMBNAIL_FACTORY, NULL);
-
+ 
 factory->priv->size = size;
-
+ 
 return factory;
 }
 
@@ -524,9 +898,9 @@ mate_desktop_thumbnail_factory_lookup (MateDesktopThumbnailFactory *factory,
 g_assert (digest_len == 16);
 
 file = g_strconcat (g_checksum_get_string (checksum), ".png", NULL);
-
- path = g_build_filename (g_get_home_dir (),
- ".thumbnails",
+ 
+ path = g_build_filename (g_get_user_cache_dir (),
+ "thumbnails",
 (priv->size == MATE_DESKTOP_THUMBNAIL_SIZE_NORMAL)?"normal":"large",
 file,
 NULL);
@@ -586,8 +960,8 @@ mate_desktop_thumbnail_factory_has_valid_failed_thumbnail (MateDesktopThumbnailF
 
 file = g_strconcat (g_checksum_get_string (checksum), ".png", NULL);
 
- path = g_build_filename (g_get_home_dir (),
- ".thumbnails/fail",
+ path = g_build_filename (g_get_user_cache_dir (),
+ "thumbnails/fail",
 appname,
 file,
 NULL);
@@ -607,55 +981,52 @@ mate_desktop_thumbnail_factory_has_valid_failed_thumbnail (MateDesktopThumbnailF
 return res;
 }
 
-static gboolean mimetype_supported_by_gdk_pixbuf(const char* mime_type)
+static gboolean
+mimetype_supported_by_gdk_pixbuf (const char *mime_type)
 {
- guint i;
- static GHashTable* formats_hash = NULL;
- gchar* key;
- gboolean result;
-
- if (!formats_hash)
- {
- GSList* formats;
- GSList* list;
-
- formats_hash = g_hash_table_new_full(g_str_hash, g_content_type_equals, g_free, NULL);
+ guint i;
+ static gsize formats_hash = 0;
+ gchar *key;
+ gboolean result;
 
- formats = gdk_pixbuf_get_formats();
- list = formats;
+ if (g_once_init_enter (&formats_hash)) {
+ GSList *formats, *list;
+ GHashTable *hash;
 
- while (list)
- {
- GdkPixbufFormat* format = list->data;
- gchar** mime_types = gdk_pixbuf_format_get_mime_types(format);
+ hash = g_hash_table_new_full (g_str_hash,
+ (GEqualFunc) g_content_type_equals,
+ g_free, NULL);
 
- for (i = 0; mime_types[i] != NULL; i++)
- {
- g_hash_table_insert(formats_hash, (gpointer) g_content_type_from_mime_type(mime_types[i]), GUINT_TO_POINTER(1));
- }
+ formats = gdk_pixbuf_get_formats ();
+ list = formats;
 
- g_strfreev(mime_types);
+ while (list) {
+ GdkPixbufFormat *format = list->data;
+ gchar **mime_types;
 
- list = list->next;
- }
+ mime_types = gdk_pixbuf_format_get_mime_types (format);
 
- g_slist_free(formats);
- }
+ for (i = 0; mime_types[i] != NULL; i++)
+ g_hash_table_insert (hash,
+ (gpointer) g_content_type_from_mime_type (mime_types[i]),
+ GUINT_TO_POINTER (1)); 
 
- key = g_content_type_from_mime_type(mime_type);
+ g_strfreev (mime_types);
+ list = list->next;
+ }
+ g_slist_free (formats);
 
- if (g_hash_table_lookup(formats_hash, key))
- {
- result = TRUE;
- }
- else
- {
- result = FALSE;
- }
+ g_once_init_leave (&formats_hash, (gsize) hash);
+ }
 
- g_free(key);
+ key = g_content_type_from_mime_type (mime_type);
+ if (g_hash_table_lookup ((void*)formats_hash, key))
+ result = TRUE;
+ else
+ result = FALSE;
+ g_free (key);
 
- return result;
+ return result;
 }
 
 /**
@@ -680,21 +1051,26 @@ mate_desktop_thumbnail_factory_can_thumbnail (MateDesktopThumbnailFactory *facto
 const char *mime_type,
 time_t mtime)
 {
- gboolean have_script;
+ gboolean have_script = FALSE;
 
 /* Don't thumbnail thumbnails */
 if (uri &&
 strncmp (uri, "file:/", 6) == 0 &&
- strstr (uri, "/.thumbnails/") != NULL)
+ strstr (uri, "/thumbnails/") != NULL)
 return FALSE;
-
+ 
 if (!mime_type)
 return FALSE;
 
- g_mutex_lock (factory->priv->lock);
- have_script = (factory->priv->scripts_hash != NULL &&
- g_hash_table_lookup (factory->priv->scripts_hash, mime_type));
- g_mutex_unlock (factory->priv->lock);
+ g_mutex_lock (&factory->priv->lock);
+ if (!mate_desktop_thumbnail_factory_is_disabled (factory, mime_type))
+ {
+ Thumbnailer *thumb;
+
+ thumb = g_hash_table_lookup (factory->priv->mime_types_map, mime_type);
+ have_script = thumbnailer_try_exec (thumb);
+ }
+ g_mutex_unlock (&factory->priv->lock);
 
 if (have_script || mimetype_supported_by_gdk_pixbuf (mime_type))
 {
@@ -702,13 +1078,13 @@ mate_desktop_thumbnail_factory_can_thumbnail (MateDesktopThumbnailFactory *facto
 uri,
 mtime);
 }
-
+ 
 return FALSE;
 }
 
 static char *
 expand_thumbnailing_script (const char *script,
- const int size,
+ const int size, 
 const char *inuri,
 const char *outfile)
 {
@@ -718,7 +1094,7 @@ expand_thumbnailing_script (const char *script,
 gboolean got_in;
 
 str = g_string_new (NULL);
-
+ 
 got_in = FALSE;
 last = script;
 while ((p = strchr (last, '%')) != NULL)
@@ -786,7 +1162,7 @@ expand_thumbnailing_script (const char *script,
 *
 * Usage of this function is threadsafe.
 *
- * Return value: thumbnail pixbuf if thumbnailing succeeded, %NULL otherwise.
+ * Return value: (transfer full): thumbnail pixbuf if thumbnailing succeeded, %NULL otherwise.
 *
 * Since: 2.2
 **/
@@ -809,7 +1185,7 @@ mate_desktop_thumbnail_factory_generate_thumbnail (MateDesktopThumbnailFactory *
 g_return_val_if_fail (mime_type != NULL, NULL);
 
 /* Doesn't access any volatile fields in factory, so it's threadsafe */
-
+ 
 size = 128;
 if (factory->priv->size == MATE_DESKTOP_THUMBNAIL_SIZE_LARGE)
 size = 256;
@@ -817,15 +1193,17 @@ mate_desktop_thumbnail_factory_generate_thumbnail (MateDesktopThumbnailFactory *
 pixbuf = NULL;
 
 script = NULL;
- g_mutex_lock (factory->priv->lock);
- if (factory->priv->scripts_hash != NULL)
+ g_mutex_lock (&factory->priv->lock);
+ if (!mate_desktop_thumbnail_factory_is_disabled (factory, mime_type))
 {
- script = g_hash_table_lookup (factory->priv->scripts_hash, mime_type);
- if (script)
- script = g_strdup (script);
- }
- g_mutex_unlock (factory->priv->lock);
+ Thumbnailer *thumb;
 
+ thumb = g_hash_table_lookup (factory->priv->mime_types_map, mime_type);
+ if (thumb)
+ script = g_strdup (thumb->command);
+ }
+ g_mutex_unlock (&factory->priv->lock);
+ 
 if (script)
 {
 int fd;
@@ -846,7 +1224,7 @@ mate_desktop_thumbnail_factory_generate_thumbnail (MateDesktopThumbnailFactory *
 }
 
 g_free (expanded_script);
- g_unlink(tmpname);
+ g_unlink (tmpname);
 g_free (tmpname);
 }
 
@@ -866,7 +1244,7 @@ mate_desktop_thumbnail_factory_generate_thumbnail (MateDesktopThumbnailFactory *
 "mate-original-height"));
 }
 }
-
+ 
 if (pixbuf == NULL)
 return NULL;
 
@@ -879,7 +1257,7 @@ mate_desktop_thumbnail_factory_generate_thumbnail (MateDesktopThumbnailFactory *
 
 width = gdk_pixbuf_get_width (pixbuf);
 height = gdk_pixbuf_get_height (pixbuf);
-
+ 
 if (width > size || height > size)
 {
 const gchar *orig_width, *orig_height;
@@ -898,11 +1276,11 @@ mate_desktop_thumbnail_factory_generate_thumbnail (MateDesktopThumbnailFactory *
 if (orig_height != NULL) {
 gdk_pixbuf_set_option (scaled, "tEXt::Thumb::Image::Height", orig_height);
 }
-
+ 
 g_object_unref (pixbuf);
 pixbuf = scaled;
 }
-
+ 
 if (original_width > 0) {
 g_snprintf (dimension, sizeof (dimension), "%i", original_width);
 gdk_pixbuf_set_option (pixbuf, "tEXt::Thumb::Image::Width", dimension);
@@ -924,8 +1302,8 @@ make_thumbnail_dirs (MateDesktopThumbnailFactory *factory)
 
 res = FALSE;
 
- thumbnail_dir = g_build_filename (g_get_home_dir (),
- ".thumbnails",
+ thumbnail_dir = g_build_filename (g_get_user_cache_dir (),
+ "thumbnails",
 NULL);
 if (!g_file_test (thumbnail_dir, G_FILE_TEST_IS_DIR))
 {
@@ -944,7 +1322,7 @@ make_thumbnail_dirs (MateDesktopThumbnailFactory *factory)
 
 g_free (thumbnail_dir);
 g_free (image_dir);
-
+ 
 return res;
 }
 
@@ -958,8 +1336,8 @@ make_thumbnail_fail_dirs (MateDesktopThumbnailFactory *factory)
 
 res = FALSE;
 
- thumbnail_dir = g_build_filename (g_get_home_dir (),
- ".thumbnails",
+ thumbnail_dir = g_build_filename (g_get_user_cache_dir (),
+ "thumbnails",
 NULL);
 if (!g_file_test (thumbnail_dir, G_FILE_TEST_IS_DIR))
 {
@@ -988,7 +1366,7 @@ make_thumbnail_fail_dirs (MateDesktopThumbnailFactory *factory)
 g_free (thumbnail_dir);
 g_free (fail_dir);
 g_free (app_dir);
-
+ 
 return res;
 }
 
@@ -996,9 +1374,9 @@ make_thumbnail_fail_dirs (MateDesktopThumbnailFactory *factory)
 /**
 * mate_desktop_thumbnail_factory_save_thumbnail:
 * @factory: a #MateDesktopThumbnailFactory
- * @thumbnail: the thumbnail as a pixbuf
+ * @thumbnail: the thumbnail as a pixbuf 
 * @uri: the uri of a file
- * @original_mtime: the modification time of the original file
+ * @original_mtime: the modification time of the original file 
 *
 * Saves @thumbnail at the right place. If the save fails a
 * failed thumbnail is written.
@@ -1023,6 +1401,7 @@ mate_desktop_thumbnail_factory_save_thumbnail (MateDesktopThumbnailFactory *fact
 GChecksum *checksum;
 guint8 digest[16];
 gsize digest_len = sizeof (digest);
+ GError *error;
 
 checksum = g_checksum_new (G_CHECKSUM_MD5);
 g_checksum_update (checksum, (const guchar *) uri, strlen (uri));
@@ -1032,8 +1411,8 @@ mate_desktop_thumbnail_factory_save_thumbnail (MateDesktopThumbnailFactory *fact
 
 file = g_strconcat (g_checksum_get_string (checksum), ".png", NULL);
 
- path = g_build_filename (g_get_home_dir (),
- ".thumbnails",
+ path = g_build_filename (g_get_user_cache_dir (),
+ "thumbnails",
 (priv->size == MATE_DESKTOP_THUMBNAIL_SIZE_NORMAL)?"normal":"large",
 file,
 NULL);
@@ -1061,15 +1440,16 @@ mate_desktop_thumbnail_factory_save_thumbnail (MateDesktopThumbnailFactory *fact
 return;
 }
 close (tmp_fd);
-
+ 
 g_snprintf (mtime_str, 21, "%ld", original_mtime);
 width = gdk_pixbuf_get_option (thumbnail, "tEXt::Thumb::Image::Width");
 height = gdk_pixbuf_get_option (thumbnail, "tEXt::Thumb::Image::Height");
 
- if (width != NULL && height != NULL)
+ error = NULL;
+ if (width != NULL && height != NULL) 
 saved_ok = gdk_pixbuf_save (thumbnail,
 tmp_path,
- "png", NULL,
+ "png", &error,
 "tEXt::Thumb::Image::Width", width,
 "tEXt::Thumb::Image::Height", height,
 "tEXt::Thumb::URI", uri,
@@ -1079,21 +1459,24 @@ mate_desktop_thumbnail_factory_save_thumbnail (MateDesktopThumbnailFactory *fact
 else
 saved_ok = gdk_pixbuf_save (thumbnail,
 tmp_path,
- "png", NULL,
+ "png", &error,
 "tEXt::Thumb::URI", uri,
 "tEXt::Thumb::MTime", mtime_str,
 "tEXt::Software", "MATE::ThumbnailFactory",
 NULL);
-
+ 
 
 if (saved_ok)
 {
 g_chmod (tmp_path, 0600);
- g_rename(tmp_path, path);
+ g_rename (tmp_path, path);
 }
 else
 {
+ g_warning ("Failed to create thumbnail %s: %s", tmp_path, error->message);
 mate_desktop_thumbnail_factory_create_failed_thumbnail (factory, uri, original_mtime);
+ g_unlink (tmp_path);
+ g_clear_error (&error);
 }
 
 g_free (path);
@@ -1136,8 +1519,8 @@ mate_desktop_thumbnail_factory_create_failed_thumbnail (MateDesktopThumbnailFact
 
 file = g_strconcat (g_checksum_get_string (checksum), ".png", NULL);
 
- path = g_build_filename (g_get_home_dir (),
- ".thumbnails/fail",
+ path = g_build_filename (g_get_user_cache_dir (),
+ "thumbnails/fail",
 appname,
 file,
 NULL);
@@ -1163,12 +1546,12 @@ mate_desktop_thumbnail_factory_create_failed_thumbnail (MateDesktopThumbnailFact
 return;
 }
 close (tmp_fd);
-
+ 
 g_snprintf (mtime_str, 21, "%ld", mtime);
 pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, 1, 1);
 saved_ok = gdk_pixbuf_save (pixbuf,
 tmp_path,
- "png", NULL,
+ "png", NULL, 
 "tEXt::Thumb::URI", uri,
 "tEXt::Thumb::MTime", mtime_str,
 "tEXt::Software", "MATE::ThumbnailFactory",
@@ -1194,8 +1577,7 @@ mate_desktop_thumbnail_factory_create_failed_thumbnail (MateDesktopThumbnailFact
 * Return value: A string with the MD5 digest of the uri string.
 *
 * Since: 2.2
- *
- * @Deprecated: 2.22: Use #GChecksum instead
+ * Deprecated: 2.22: Use #GChecksum instead
 **/
 char *
 mate_desktop_thumbnail_md5 (const char *uri)
@@ -1227,13 +1609,13 @@ mate_desktop_thumbnail_path_for_uri (const char *uri,
 md5 = mate_desktop_thumbnail_md5 (uri);
 file = g_strconcat (md5, ".png", NULL);
 g_free (md5);
-
- path = g_build_filename (g_get_home_dir (),
- ".thumbnails",
+ 
+ path = g_build_filename (g_get_user_cache_dir (),
+ "thumbnails",
 (size == MATE_DESKTOP_THUMBNAIL_SIZE_NORMAL)?"normal":"large",
 file,
 NULL);
-
+ 
 g_free (file);
 
 return path;
@@ -1256,7 +1638,7 @@ mate_desktop_thumbnail_has_uri (GdkPixbuf *pixbuf,
 const char *uri)
 {
 const char *thumb_uri;
-
+ 
 thumb_uri = gdk_pixbuf_get_option (pixbuf, "tEXt::Thumb::URI");
 if (!thumb_uri)
 return FALSE;
@@ -1284,19 +1666,19 @@ mate_desktop_thumbnail_is_valid (GdkPixbuf *pixbuf,
 {
 const char *thumb_uri, *thumb_mtime_str;
 time_t thumb_mtime;
-
+ 
 thumb_uri = gdk_pixbuf_get_option (pixbuf, "tEXt::Thumb::URI");
 if (!thumb_uri)
 return FALSE;
 if (strcmp (uri, thumb_uri) != 0)
 return FALSE;
-
+ 
 thumb_mtime_str = gdk_pixbuf_get_option (pixbuf, "tEXt::Thumb::MTime");
 if (!thumb_mtime_str)
 return FALSE;
 thumb_mtime = atol (thumb_mtime_str);
 if (mtime != thumb_mtime)
 return FALSE;
-
+ 
 return TRUE;
 }
author	Stefano Karapetsas <[email protected]>	2012-09-03 15:45:37 +0200
committer	Stefano Karapetsas <[email protected]>	2012-09-03 15:45:37 +0200
commit	f2ce79172dea2db12a1d85f441990e8b56cae225 (patch)
tree	4deb1ae5eef76ff0d256d74b755220da3f020c9c
parent	1555690252d2066edf6297e3a9e579ae522c2ada (diff)
download	mate-desktop-f2ce79172dea2db12a1d85f441990e8b56cae225.tar.bz2 mate-desktop-f2ce79172dea2db12a1d85f441990e8b56cae225.tar.xz