/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* GIO - GLib Input, Output and Streaming Library
- *
+ *
* Copyright (C) 2006-2007 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* 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., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Alexander Larsson <alexl@redhat.com>
*/
* @include: gio/gio.h
*
* A content type is a platform specific string that defines the type
- * of a file. On unix it is a mime type, on win32 it is an extension string
- * like ".doc", ".txt" or a percieved string like "audio". Such strings
- * can be looked up in the registry at HKEY_CLASSES_ROOT.
+ * of a file. On UNIX it is a
+ * [mime type](http://www.wikipedia.org/wiki/Internet_media_type)
+ * like "text/plain" or "image/png".
+ * On Win32 it is an extension string like ".doc", ".txt" or a perceived
+ * string like "audio". Such strings can be looked up in the registry at
+ * HKEY_CLASSES_ROOT.
**/
-#ifdef G_OS_WIN32
-
-#include <windows.h>
-
-static char *
-get_registry_classes_key (const char *subdir,
- const wchar_t *key_name)
-{
- wchar_t *wc_key;
- HKEY reg_key = NULL;
- DWORD key_type;
- DWORD nbytes;
- char *value_utf8;
-
- value_utf8 = NULL;
-
- nbytes = 0;
- wc_key = g_utf8_to_utf16 (subdir, -1, NULL, NULL, NULL);
- if (RegOpenKeyExW (HKEY_CLASSES_ROOT, wc_key, 0,
- KEY_QUERY_VALUE, ®_key) == ERROR_SUCCESS &&
- RegQueryValueExW (reg_key, key_name, 0,
- &key_type, NULL, &nbytes) == ERROR_SUCCESS &&
- (key_type == REG_SZ || key_type == REG_EXPAND_SZ))
- {
- wchar_t *wc_temp = g_new (wchar_t, (nbytes+1)/2 + 1);
- RegQueryValueExW (reg_key, key_name, 0,
- &key_type, (LPBYTE) wc_temp, &nbytes);
- wc_temp[nbytes/2] = '\0';
- if (key_type == REG_EXPAND_SZ)
- {
- wchar_t dummy[1];
- int len = ExpandEnvironmentStringsW (wc_temp, dummy, 1);
- if (len > 0)
- {
- wchar_t *wc_temp_expanded = g_new (wchar_t, len);
- if (ExpandEnvironmentStringsW (wc_temp, wc_temp_expanded, len) == len)
- value_utf8 = g_utf16_to_utf8 (wc_temp_expanded, -1, NULL, NULL, NULL);
- g_free (wc_temp_expanded);
- }
- }
- else
- {
- value_utf8 = g_utf16_to_utf8 (wc_temp, -1, NULL, NULL, NULL);
- }
- g_free (wc_temp);
-
- }
- g_free (wc_key);
-
- if (reg_key != NULL)
- RegCloseKey (reg_key);
-
- return value_utf8;
-}
-
-gboolean
-g_content_type_equals (const gchar *type1,
- const gchar *type2)
-{
- char *progid1, *progid2;
- gboolean res;
-
- g_return_val_if_fail (type1 != NULL, FALSE);
- g_return_val_if_fail (type2 != NULL, FALSE);
-
- if (g_ascii_strcasecmp (type1, type2) == 0)
- return TRUE;
-
- res = FALSE;
- progid1 = get_registry_classes_key (type1, NULL);
- progid2 = get_registry_classes_key (type2, NULL);
- if (progid1 != NULL && progid2 != NULL &&
- strcmp (progid1, progid2) == 0)
- res = TRUE;
- g_free (progid1);
- g_free (progid2);
-
- return res;
-}
-
-gboolean
-g_content_type_is_a (const gchar *type,
- const gchar *supertype)
-{
- gboolean res;
- char *value_utf8;
-
- g_return_val_if_fail (type != NULL, FALSE);
- g_return_val_if_fail (supertype != NULL, FALSE);
-
- if (g_content_type_equals (type, supertype))
- return TRUE;
-
- res = FALSE;
- value_utf8 = get_registry_classes_key (type, L"PerceivedType");
- if (value_utf8 && strcmp (value_utf8, supertype) == 0)
- res = TRUE;
- g_free (value_utf8);
-
- return res;
-}
-
-gboolean
-g_content_type_is_unknown (const gchar *type)
-{
- g_return_val_if_fail (type != NULL, FALSE);
-
- return strcmp ("*", type) == 0;
-}
-
-gchar *
-g_content_type_get_description (const gchar *type)
-{
- char *progid;
- char *description;
-
- g_return_val_if_fail (type != NULL, NULL);
-
- progid = get_registry_classes_key (type, NULL);
- if (progid)
- {
- description = get_registry_classes_key (progid, NULL);
- g_free (progid);
-
- if (description)
- return description;
- }
-
- if (g_content_type_is_unknown (type))
- return g_strdup (_("Unknown type"));
- return g_strdup_printf (_("%s filetype"), type);
-}
-
-gchar *
-g_content_type_get_mime_type (const gchar *type)
-{
- char *mime;
-
- g_return_val_if_fail (type != NULL, NULL);
-
- mime = get_registry_classes_key (type, L"Content Type");
- if (mime)
- return mime;
- else if (g_content_type_is_unknown (type))
- return g_strdup ("application/octet-stream");
- else if (*type == '.')
- return g_strdup_printf ("application/x-ext-%s", type+1);
- /* TODO: Map "image" to "image/ *", etc? */
-
- return g_strdup ("application/octet-stream");
-}
-
-G_LOCK_DEFINE_STATIC (_type_icons);
-static GHashTable *_type_icons = NULL;
-
-GIcon *
-g_content_type_get_icon (const gchar *type)
-{
- GIcon *themed_icon;
- char *name = NULL;
-
- g_return_val_if_fail (type != NULL, NULL);
-
- /* In the Registry icons are the default value of
- HKEY_CLASSES_ROOT\<progid>\DefaultIcon with typical values like:
- <type>: <value>
- REG_EXPAND_SZ: %SystemRoot%\System32\Wscript.exe,3
- REG_SZ: shimgvw.dll,3
- */
- G_LOCK (_type_icons);
- if (!_type_icons)
- _type_icons = g_hash_table_new (g_str_hash, g_str_equal);
- name = g_hash_table_lookup (_type_icons, type);
- if (!name && type[0] == '.')
- {
- /* double lookup by extension */
- gchar *key = get_registry_classes_key (type, NULL);
- if (!key)
- key = g_strconcat (type+1, "file\\DefaultIcon", NULL);
- else
- {
- gchar *key2 = g_strconcat (key, "\\DefaultIcon", NULL);
- g_free (key);
- key = key2;
- }
- name = get_registry_classes_key (key, NULL);
- if (name && strcmp (name, "%1") == 0)
- {
- g_free (name);
- name = NULL;
- }
- if (name)
- g_hash_table_insert (_type_icons, g_strdup (type), g_strdup (name));
- g_free (key);
- }
-
- /* icon-name similar to how it was with gtk-2-12 */
- if (name)
- {
- themed_icon = g_themed_icon_new (name);
- }
- else
- {
- /* if not found an icon fall back to gtk-builtins */
- name = strcmp (type, "inode/directory") == 0 ? "gtk-directory" :
- g_content_type_can_be_executable (type) ? "gtk-execute" : "gtk-file";
- g_hash_table_insert (_type_icons, g_strdup (type), g_strdup (name));
- themed_icon = g_themed_icon_new_with_default_fallbacks (name);
- }
- G_UNLOCK (_type_icons);
-
- return G_ICON (themed_icon);
-}
-
-gboolean
-g_content_type_can_be_executable (const gchar *type)
-{
- g_return_val_if_fail (type != NULL, FALSE);
-
- if (strcmp (type, ".exe") == 0 ||
- strcmp (type, ".com") == 0 ||
- strcmp (type, ".bat") == 0)
- return TRUE;
-
- /* TODO: Also look at PATHEXT, which lists the extensions for
- * "scripts" in addition to those for true binary executables.
- *
- * (PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH for me
- * right now, for instance). And in a sense, all associated file
- * types are "executable" on Windows... You can just type foo.jpg as
- * a command name in cmd.exe, and it will run the application
- * associated with .jpg. Hard to say what this API actually means
- * with "executable".
- */
-
- return FALSE;
-}
-
-static gboolean
-looks_like_text (const guchar *data,
- gsize data_size)
-{
- gsize i;
- guchar c;
- for (i = 0; i < data_size; i++)
- {
- c = data[i];
- if (g_ascii_iscntrl (c) && !g_ascii_isspace (c) && c != '\b')
- return FALSE;
- }
- return TRUE;
-}
-
-gchar *
-g_content_type_from_mime_type (const gchar *mime_type)
-{
- char *key, *content_type;
-
- g_return_val_if_fail (mime_type != NULL, NULL);
-
- key = g_strconcat ("MIME\\DataBase\\Content Type\\", mime_type, NULL);
- content_type = get_registry_classes_key (key, L"Extension");
- g_free (key);
-
- return content_type;
-}
-
-gchar *
-g_content_type_guess (const gchar *filename,
- const guchar *data,
- gsize data_size,
- gboolean *result_uncertain)
-{
- char *basename;
- char *type;
- char *dot;
-
- type = NULL;
-
- if (result_uncertain)
- *result_uncertain = FALSE;
-
- if (filename)
- {
- basename = g_path_get_basename (filename);
- dot = strrchr (basename, '.');
- if (dot)
- type = g_strdup (dot);
- g_free (basename);
- }
-
- if (type)
- return type;
-
- if (data && looks_like_text (data, data_size))
- return g_strdup (".txt");
-
- return g_strdup ("*");
-}
-
-GList *
-g_content_types_get_registered (void)
-{
- DWORD index;
- wchar_t keyname[256];
- DWORD key_len;
- char *key_utf8;
- GList *types;
-
- types = NULL;
- index = 0;
- key_len = 256;
- while (RegEnumKeyExW(HKEY_CLASSES_ROOT,
- index,
- keyname,
- &key_len,
- NULL,
- NULL,
- NULL,
- NULL) == ERROR_SUCCESS)
- {
- key_utf8 = g_utf16_to_utf8 (keyname, -1, NULL, NULL, NULL);
- if (key_utf8)
- {
- if (*key_utf8 == '.')
- types = g_list_prepend (types, key_utf8);
- else
- g_free (key_utf8);
- }
- index++;
- key_len = 256;
- }
-
- return g_list_reverse (types);
-}
-
-gchar **
-g_content_type_guess_for_tree (GFile *root)
-{
- /* FIXME: implement */
- return NULL;
-}
-
-#else /* !G_OS_WIN32 - Unix specific version */
-
#include <dirent.h>
#define XDG_PREFIX _gio_xdg
*
* Gets the mime type for the content type, if one is registered.
*
- * Returns: (allow-none): the registered mime type for the given @type,
+ * Returns: (nullable): the registered mime type for the given @type,
* or %NULL if unknown.
*/
char *
return g_strdup (type);
}
-/**
- * g_content_type_get_icon:
- * @type: a content type string
- *
- * Gets the icon for a content type.
- *
- * Returns: (transfer full): #GIcon corresponding to the content type. Free the returned
- * object with g_object_unref()
- */
-GIcon *
-g_content_type_get_icon (const gchar *type)
+static GIcon *
+g_content_type_get_icon_internal (const gchar *type,
+ gboolean symbolic)
{
- char *mimetype_icon, *generic_mimetype_icon, *q;
- char *xdg_mimetype_icon, *legacy_mimetype_icon;
- char *xdg_mimetype_generic_icon;
- char *icon_names[5];
+ char *mimetype_icon;
+ char *generic_mimetype_icon = NULL;
+ char *q;
+ char *icon_names[6];
int n = 0;
- const char *p;
GIcon *themed_icon;
+ const char *xdg_icon;
+ int i;
g_return_val_if_fail (type != NULL, NULL);
G_LOCK (gio_xdgmime);
- xdg_mimetype_icon = g_strdup (xdg_mime_get_icon (type));
- xdg_mimetype_generic_icon = g_strdup (xdg_mime_get_generic_icon (type));
+ xdg_icon = xdg_mime_get_icon (type);
G_UNLOCK (gio_xdgmime);
- mimetype_icon = g_strdup (type);
+ if (xdg_icon)
+ icon_names[n++] = g_strdup (xdg_icon);
+ mimetype_icon = g_strdup (type);
while ((q = strchr (mimetype_icon, '/')) != NULL)
*q = '-';
- p = strchr (type, '/');
- if (p == NULL)
- p = type + strlen (type);
+ icon_names[n++] = mimetype_icon;
- /* Not all icons have migrated to the new icon theme spec, look for old names too */
- legacy_mimetype_icon = g_strconcat ("gnome-mime-", mimetype_icon, NULL);
+ generic_mimetype_icon = g_content_type_get_generic_icon_name (type);
+ if (generic_mimetype_icon)
+ icon_names[n++] = generic_mimetype_icon;
- generic_mimetype_icon = g_malloc (p - type + strlen ("-x-generic") + 1);
- memcpy (generic_mimetype_icon, type, p - type);
- memcpy (generic_mimetype_icon + (p - type), "-x-generic", strlen ("-x-generic"));
- generic_mimetype_icon[(p - type) + strlen ("-x-generic")] = 0;
+ if (symbolic)
+ {
+ for (i = 0; i < n; i++)
+ {
+ icon_names[n + i] = icon_names[i];
+ icon_names[i] = g_strconcat (icon_names[i], "-symbolic", NULL);
+ }
- if (xdg_mimetype_icon)
- icon_names[n++] = xdg_mimetype_icon;
+ n += n;
+ }
- icon_names[n++] = mimetype_icon;
- icon_names[n++] = legacy_mimetype_icon;
+ themed_icon = g_themed_icon_new_from_names (icon_names, n);
- if (xdg_mimetype_generic_icon)
- icon_names[n++] = xdg_mimetype_generic_icon;
+ for (i = 0; i < n; i++)
+ g_free (icon_names[i]);
- icon_names[n++] = generic_mimetype_icon;
+ return themed_icon;
+}
- themed_icon = g_themed_icon_new_from_names (icon_names, n);
+/**
+ * g_content_type_get_icon:
+ * @type: a content type string
+ *
+ * Gets the icon for a content type.
+ *
+ * Returns: (transfer full): #GIcon corresponding to the content type. Free the returned
+ * object with g_object_unref()
+ */
+GIcon *
+g_content_type_get_icon (const gchar *type)
+{
+ return g_content_type_get_icon_internal (type, FALSE);
+}
- g_free (xdg_mimetype_icon);
- g_free (xdg_mimetype_generic_icon);
- g_free (mimetype_icon);
- g_free (legacy_mimetype_icon);
- g_free (generic_mimetype_icon);
+/**
+ * g_content_type_get_symbolic_icon:
+ * @type: a content type string
+ *
+ * Gets the symbolic icon for a content type.
+ *
+ * Returns: (transfer full): symbolic #GIcon corresponding to the content type.
+ * Free the returned object with g_object_unref()
+ *
+ * Since: 2.34
+ */
+GIcon *
+g_content_type_get_symbolic_icon (const gchar *type)
+{
+ return g_content_type_get_icon_internal (type, TRUE);
+}
- return themed_icon;
+/**
+ * g_content_type_get_generic_icon_name:
+ * @type: a content type string
+ *
+ * Gets the generic icon name for a content type.
+ *
+ * See the
+ * [shared-mime-info](http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec)
+ * specification for more on the generic icon name.
+ *
+ * Returns: (allow-none): the registered generic icon name for the given @type,
+ * or %NULL if unknown. Free with g_free()
+ *
+ * Since: 2.34
+ */
+gchar *
+g_content_type_get_generic_icon_name (const gchar *type)
+{
+ const gchar *xdg_icon_name;
+ gchar *icon_name;
+
+ G_LOCK (gio_xdgmime);
+ xdg_icon_name = xdg_mime_get_generic_icon (type);
+ G_UNLOCK (gio_xdgmime);
+
+ if (!xdg_icon_name)
+ {
+ const char *p;
+ const char *suffix = "-x-generic";
+
+ p = strchr (type, '/');
+ if (p == NULL)
+ p = type + strlen (type);
+
+ icon_name = g_malloc (p - type + strlen (suffix) + 1);
+ memcpy (icon_name, type, p - type);
+ memcpy (icon_name + (p - type), suffix, strlen (suffix));
+ icon_name[(p - type) + strlen (suffix)] = 0;
+ }
+ else
+ {
+ icon_name = g_strdup (xdg_icon_name);
+ }
+
+ return icon_name;
}
/**
*
* Tries to find a content type based on the mime type name.
*
- * Returns: (allow-none): Newly allocated string with content type
- * or %NULL. Free with g_free()
+ * Returns: (nullable): Newly allocated string with content type or
+ * %NULL. Free with g_free()
*
* Since: 2.18
**/
if (result_uncertain)
*result_uncertain = FALSE;
+ /* our test suite and potentially other code used -1 in the past, which is
+ * not documented and not allowed; guard against that */
+ g_return_val_if_fail (data_size != (gsize) -1, g_strdup (XDG_MIME_TYPE_UNKNOWN));
+
G_LOCK (gio_xdgmime);
if (filename)
/* Got an extension match, and no conflicts. This is it. */
if (n_name_mimetypes == 1)
{
+ gchar *s = g_strdup (name_mimetypes[0]);
G_UNLOCK (gio_xdgmime);
- return g_strdup (name_mimetypes[0]);
+ return s;
}
if (data)
*
* Gets a list of strings containing all the registered content types
* known to the system. The list and its data should be freed using
- * <programlisting>
- * g_list_foreach (list, g_free, NULL);
- * g_list_free (list);
- * </programlisting>
+ * g_list_free_full (list, g_free).
*
- * Returns: (element-type utf8) (transfer full): #GList of the registered content types
+ * Returns: (element-type utf8) (transfer full): list of the registered
+ * content types
*/
GList *
g_content_types_get_registered (void)
static void
tree_matchlet_free (TreeMatchlet *matchlet)
{
- g_list_foreach (matchlet->matches, (GFunc)tree_matchlet_free, NULL);
- g_list_free (matchlet->matches);
+ g_list_free_full (matchlet->matches, (GDestroyNotify) tree_matchlet_free);
g_free (matchlet->path);
g_free (matchlet->mimetype);
g_slice_free (TreeMatchlet, matchlet);
static void
tree_match_free (TreeMatch *match)
{
- g_list_foreach (match->matches, (GFunc)tree_matchlet_free, NULL);
- g_list_free (match->matches);
+ g_list_free_full (match->matches, (GDestroyNotify) tree_matchlet_free);
g_free (match->contenttype);
g_slice_free (TreeMatch, match);
}
match = parse_header (lines[i]);
insert_match (match);
}
- else
+ else if (match != NULL)
{
matchlet = parse_match_line (lines[i], &depth);
insert_matchlet (match, matchlet, depth);
}
+ else
+ {
+ g_warning ("%s: header corrupt; skipping\n", filename);
+ break;
+ }
}
g_strfreev (lines);
static void
tree_magic_shutdown (void)
{
- g_list_foreach (tree_matches, (GFunc)tree_match_free, NULL);
- g_list_free (tree_matches);
+ g_list_free_full (tree_matches, (GDestroyNotify) tree_match_free);
tree_matches = NULL;
}
result = FALSE;
}
- g_object_unref (info);
+ if (info)
+ g_object_unref (info);
g_object_unref (file);
}
while (!result);
*
* The types returned all have the form x-content/foo, e.g.
* x-content/audio-cdda (for audio CDs) or x-content/image-dcf
- * (for a camera memory card). See the <ulink url="http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec">shared-mime-info</ulink>
+ * (for a camera memory card). See the
+ * [shared-mime-info](http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec)
* specification for more on x-content types.
*
* This function is useful in the implementation of
* g_mount_guess_content_type().
*
* Returns: (transfer full) (array zero-terminated=1): an %NULL-terminated
- * array of zero or more content types, or %NULL. Free with g_strfreev()
+ * array of zero or more content types. Free with g_strfreev()
*
* Since: 2.18
*/
return (gchar **)g_ptr_array_free (types, FALSE);
}
-
-#endif /* Unix version */
projects / platform / upstream / glib.git / blobdiff