X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gio%2Fgcontenttype.c;h=9586c31d9e288d8e2b713d2a0fdcc06372ddf2b6;hb=4482977238ae80f64c2fe318d1500f4662c73980;hp=ce8ab6cce1ba7316ba2eadfc327eae0886076acd;hpb=9a6529442c3e82bb8151f7ed72edd72559c4fc63;p=platform%2Fupstream%2Fglib.git diff --git a/gio/gcontenttype.c b/gio/gcontenttype.c index ce8ab6c..9586c31 100644 --- a/gio/gcontenttype.c +++ b/gio/gcontenttype.c @@ -1,7 +1,7 @@ /* -*- 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 @@ -15,9 +15,7 @@ * 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 . * * Author: Alexander Larsson */ @@ -42,357 +40,14 @@ * @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 like "text/plain" or "image/png". + * 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 - -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\\DefaultIcon with typical values like: - : - 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 #define XDG_PREFIX _gio_xdg @@ -727,7 +382,7 @@ g_content_type_get_description (const gchar *type) * * 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 * @@ -738,70 +393,134 @@ g_content_type_get_mime_type (const char *type) 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; } /** @@ -850,8 +569,8 @@ looks_like_text (const guchar *data, gsize data_size) * * 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 **/ @@ -906,6 +625,10 @@ g_content_type_guess (const gchar *filename, 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) @@ -930,8 +653,9 @@ g_content_type_guess (const gchar *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) @@ -1062,12 +786,10 @@ enumerate_mimetypes_dir (const char *dir, * * Gets a list of strings containing all the registered content types * known to the system. The list and its data should be freed using - * - * g_list_foreach (list, g_free, NULL); - * g_list_free (list); - * + * 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) @@ -1130,8 +852,7 @@ typedef struct 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); @@ -1140,8 +861,7 @@ tree_matchlet_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); } @@ -1302,11 +1022,16 @@ read_tree_magic_from_directory (const gchar *prefix) 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); @@ -1330,8 +1055,7 @@ xdg_mime_reload (void *user_data) 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; } @@ -1596,7 +1320,8 @@ matchlet_match (TreeMatchlet *matchlet, result = FALSE; } - g_object_unref (info); + if (info) + g_object_unref (info); g_object_unref (file); } while (!result); @@ -1646,14 +1371,15 @@ match_match (TreeMatch *match, * * 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 shared-mime-info + * (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 */ @@ -1680,5 +1406,3 @@ g_content_type_guess_for_tree (GFile *root) return (gchar **)g_ptr_array_free (types, FALSE); } - -#endif /* Unix version */