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xfce4-screensaver
Commit eb447b3d authored by Sean Davis's avatar Sean Davis
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Tidy up xfce-desktop-thumbnail.{c,h}

parent 7d790102
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Showing with 10 additions and 353 deletions
src/xfce-desktop-thumbnail.c
View file @ eb447b3d
......@@ -66,15 +66,20 @@ static const char *appname = "mate-thumbnail-factory";
static void xfce_desktop_thumbnail_factory_init (XfceDesktopThumbnailFactory *factory);
static void xfce_desktop_thumbnail_factory_class_init (XfceDesktopThumbnailFactoryClass *class);
G_DEFINE_TYPE (XfceDesktopThumbnailFactory,
xfce_desktop_thumbnail_factory,
G_TYPE_OBJECT)
static gboolean
xfce_desktop_thumbnail_is_valid(GdkPixbuf *pixbuf,
const char *uri,
time_t mtime);
G_DEFINE_TYPE(XfceDesktopThumbnailFactory,
xfce_desktop_thumbnail_factory,
G_TYPE_OBJECT)
#define parent_class xfce_desktop_thumbnail_factory_parent_class
#define XFCE_DESKTOP_THUMBNAIL_FACTORY_GET_PRIVATE(object) \
(G_TYPE_INSTANCE_GET_PRIVATE ((object), XFCE_DESKTOP_TYPE_THUMBNAIL_FACTORY, XfceDesktopThumbnailFactoryPrivate))
typedef struct {
typedef struct {
gint width;
gint height;
gint input_width;
......@@ -204,28 +209,6 @@ thumbnailer_new (const gchar *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)
{
......@@ -325,28 +308,6 @@ xfce_desktop_thumbnail_factory_add_thumbnailer (XfceDesktopThumbnailFactory *fac
priv->thumbnailers = g_list_prepend (priv->thumbnailers, thumb);
}
static gboolean
xfce_desktop_thumbnail_factory_is_disabled (XfceDesktopThumbnailFactory *factory,
const gchar *mime_type)
{
XfceDesktopThumbnailFactoryPrivate *priv = factory->priv;
guint i;
if (priv->disabled)
return TRUE;
if (!priv->disabled_types)
return FALSE;
for (i = 0; priv->disabled_types[i]; i++)
{
if (g_strcmp0 (priv->disabled_types[i], mime_type) == 0)
return TRUE;
}
return FALSE;
}
static gboolean
remove_thumbnailer_from_mime_type_map (gchar *key,
Thumbnailer *value,
......@@ -607,30 +568,6 @@ xfce_desktop_thumbnail_factory_class_init (XfceDesktopThumbnailFactoryClass *cla
g_type_class_add_private (class, sizeof (XfceDesktopThumbnailFactoryPrivate));
}
/**
* xfce_desktop_thumbnail_factory_new:
* @size: The thumbnail size to use
*
* Creates a new #XfceDesktopThumbnailFactory.
*
* This function must be called on the main thread.
*
* Return value: a new #XfceDesktopThumbnailFactory
*
* Since: 2.2
**/
XfceDesktopThumbnailFactory *
xfce_desktop_thumbnail_factory_new (XfceDesktopThumbnailSize size)
{
XfceDesktopThumbnailFactory *factory;
factory = g_object_new (XFCE_DESKTOP_TYPE_THUMBNAIL_FACTORY, NULL);
factory->priv->size = size;
return factory;
}
/**
* xfce_desktop_thumbnail_factory_lookup:
* @factory: a #XfceDesktopThumbnailFactory
......@@ -693,189 +630,9 @@ xfce_desktop_thumbnail_factory_lookup (XfceDesktopThumbnailFactory *factory,
return FALSE;
}
/**
* xfce_desktop_thumbnail_factory_has_valid_failed_thumbnail:
* @factory: a #XfceDesktopThumbnailFactory
* @uri: the uri of a file
* @mtime: the mtime of the file
*
* Tries to locate an failed thumbnail for the file specified. Writing
* and looking for failed thumbnails is important to avoid to try to
* thumbnail e.g. broken images several times.
*
* Usage of this function is threadsafe.
*
* Return value: TRUE if there is a failed thumbnail for the file.
*
* Since: 2.2
**/
gboolean
xfce_desktop_thumbnail_factory_has_valid_failed_thumbnail (XfceDesktopThumbnailFactory *factory,
const char *uri,
time_t mtime)
{
char *path, *file;
GdkPixbuf *pixbuf;
gboolean res;
GChecksum *checksum;
guint8 digest[16];
gsize digest_len = sizeof (digest);
checksum = g_checksum_new (G_CHECKSUM_MD5);
g_checksum_update (checksum, (const guchar *) uri, strlen (uri));
g_checksum_get_digest (checksum, digest, &digest_len);
g_assert (digest_len == 16);
res = FALSE;
file = g_strconcat (g_checksum_get_string (checksum), ".png", NULL);
path = g_build_filename (g_get_user_cache_dir (),
"thumbnails/fail",
appname,
file,
NULL);
g_free (file);
pixbuf = gdk_pixbuf_new_from_file (path, NULL);
g_free (path);
if (pixbuf)
{
res = xfce_desktop_thumbnail_is_valid (pixbuf, uri, mtime);
g_object_unref (pixbuf);
}
g_checksum_free (checksum);
return res;
}
/* forbidden/buggy GdkPixbufFormat names */
const char *forbidden[] = { "tga", "icns", "jpeg2000" };
static gboolean
type_is_forbidden (const gchar *name)
{
gint i = 0;
for (i = 0; i < G_N_ELEMENTS (forbidden); i++) {
if (g_strcmp0 (forbidden[i], name) == 0) {
return TRUE;
}
}
return FALSE;
}
static gboolean
mimetype_supported_by_gdk_pixbuf (const char *mime_type)
{
guint i;
static gsize formats_hash = 0;
gchar *key;
gboolean result;
if (g_once_init_enter (&formats_hash)) {
GSList *formats, *list;
GHashTable *hash;
hash = g_hash_table_new_full (g_str_hash,
(GEqualFunc) g_content_type_equals,
g_free, NULL);
formats = gdk_pixbuf_get_formats ();
list = formats;
while (list) {
GdkPixbufFormat *format = list->data;
gchar **mime_types;
if (type_is_forbidden (format->name)) {
gdk_pixbuf_format_set_disabled (format, TRUE);
list = list->next;
continue;
}
mime_types = gdk_pixbuf_format_get_mime_types (format);
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));
g_strfreev (mime_types);
list = list->next;
}
g_slist_free (formats);
g_once_init_leave (&formats_hash, (gsize) hash);
}
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;
}
/**
* xfce_desktop_thumbnail_factory_can_thumbnail:
* @factory: a #XfceDesktopThumbnailFactory
* @uri: the uri of a file
* @mime_type: the mime type of the file
* @mtime: the mtime of the file
*
* Returns TRUE if this MateIconFactory can (at least try) to thumbnail
* this file. Thumbnails or files with failed thumbnails won't be thumbnailed.
*
* Usage of this function is threadsafe.
*
* Return value: TRUE if the file can be thumbnailed.
*
* Since: 2.2
**/
gboolean
xfce_desktop_thumbnail_factory_can_thumbnail (XfceDesktopThumbnailFactory *factory,
const char *uri,
const char *mime_type,
time_t mtime)
{
gboolean have_script = FALSE;
/* Don't thumbnail thumbnails */
if (uri &&
strncmp (uri, "file:/", 6) == 0 &&
(strstr (uri, "/.thumbnails/") != NULL ||
strstr (uri, "/.cache/thumbnails/") != NULL))
return FALSE;
if (!mime_type)
return FALSE;
g_mutex_lock (&factory->priv->lock);
if (!xfce_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))
{
return !xfce_desktop_thumbnail_factory_has_valid_failed_thumbnail (factory,
uri,
mtime);
}
return FALSE;
}
static gboolean
make_thumbnail_dirs (XfceDesktopThumbnailFactory *factory)
{
......@@ -1150,84 +907,6 @@ xfce_desktop_thumbnail_factory_create_failed_thumbnail (XfceDesktopThumbnailFact
g_free (tmp_path);
}
/**
* xfce_desktop_thumbnail_md5:
* @uri: an uri
*
* Calculates the MD5 checksum of the uri. This can be useful
* if you want to manually handle thumbnail files.
*
* Return value: A string with the MD5 digest of the uri string.
*
* Since: 2.2
* Deprecated: 2.22: Use #GChecksum instead
**/
char *
xfce_desktop_thumbnail_md5 (const char *uri)
{
return g_compute_checksum_for_data (G_CHECKSUM_MD5,
(const guchar *) uri,
strlen (uri));
}
/**
* xfce_desktop_thumbnail_path_for_uri:
* @uri: an uri
* @size: a thumbnail size
*
* Returns the filename that a thumbnail of size @size for @uri would have.
*
* Return value: an absolute filename
*
* Since: 2.2
**/
char *
xfce_desktop_thumbnail_path_for_uri (const char *uri,
XfceDesktopThumbnailSize size)
{
char *md5;
char *file;
char *path;
md5 = xfce_desktop_thumbnail_md5 (uri);
file = g_strconcat (md5, ".png", NULL);
g_free (md5);
path = g_build_filename (g_get_user_cache_dir (),
"thumbnails",
(size == XFCE_DESKTOP_THUMBNAIL_SIZE_NORMAL)?"normal":"large",
file,
NULL);
g_free (file);
return path;
}
/**
* xfce_desktop_thumbnail_has_uri:
* @pixbuf: an loaded thumbnail pixbuf
* @uri: a uri
*
* Returns whether the thumbnail has the correct uri embedded in the
* Thumb::URI option in the png.
*
* Return value: TRUE if the thumbnail is for @uri
*
* Since: 2.2
**/
gboolean
xfce_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;
return strcmp (uri, thumb_uri) == 0;
}
/**
* xfce_desktop_thumbnail_is_valid:
* @pixbuf: an loaded thumbnail #GdkPixbuf
......@@ -1241,7 +920,7 @@ xfce_desktop_thumbnail_has_uri (GdkPixbuf *pixbuf,
*
* Since: 2.2
**/
gboolean
static gboolean
xfce_desktop_thumbnail_is_valid (GdkPixbuf *pixbuf,
const char *uri,
time_t mtime)
......
src/xfce-desktop-thumbnail.h
View file @ eb447b3d
......@@ -59,22 +59,11 @@ struct _XfceDesktopThumbnailFactoryClass {
};
GType xfce_desktop_thumbnail_factory_get_type (void);
XfceDesktopThumbnailFactory *xfce_desktop_thumbnail_factory_new (XfceDesktopThumbnailSize size);
char * xfce_desktop_thumbnail_factory_lookup (XfceDesktopThumbnailFactory *factory,
const char *uri,
time_t mtime);
gboolean xfce_desktop_thumbnail_factory_has_valid_failed_thumbnail (XfceDesktopThumbnailFactory *factory,
const char *uri,
time_t mtime);
gboolean xfce_desktop_thumbnail_factory_can_thumbnail (XfceDesktopThumbnailFactory *factory,
const char *uri,
const char *mime_type,
time_t mtime);
GdkPixbuf * xfce_desktop_thumbnail_factory_generate_thumbnail (XfceDesktopThumbnailFactory *factory,
const char *uri,
const char *mime_type);
void xfce_desktop_thumbnail_factory_save_thumbnail (XfceDesktopThumbnailFactory *factory,
GdkPixbuf *thumbnail,
const char *uri,
......@@ -83,17 +72,6 @@ void xfce_desktop_thumbnail_factory_create_failed_thumbnail (X
const char *uri,
time_t mtime);
/* Thumbnailing utils: */
gboolean xfce_desktop_thumbnail_has_uri (GdkPixbuf *pixbuf,
const char *uri);
gboolean xfce_desktop_thumbnail_is_valid (GdkPixbuf *pixbuf,
const char *uri,
time_t mtime);
char * xfce_desktop_thumbnail_md5 (const char *uri);
char * xfce_desktop_thumbnail_path_for_uri (const char *uri,
XfceDesktopThumbnailSize size);
G_END_DECLS
#endif /* XFCE_DESKTOP_THUMBNAIL_H */
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