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appinfo: add API to get fallback and recommended GAppInfos for a ctype

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This ways UIs can differentiate between them, and show them in different
section.
- a recommended app is an application that claims to support a content
  type directly, not by a supertype derivation.
- a fallback app is an application that claims to support a supertype of
  a given content type.
This commit is contained in:
Cosimo Cecchi 2010-11-18 18:45:56 +01:00
parent a70ba9c8b1
commit 94c67d8420
2 changed files with 105 additions and 25 deletions
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3
gio/gappinfo.h
View File

@ -175,6 +175,9 @@ gboolean g_app_info_delete (GAppInfo *appinfo);
GList * g_app_info_get_all (void);
GList * g_app_info_get_all_for_type (const char *content_type);
GList * g_app_info_get_recommended_for_type (const gchar *content_type);
GList * g_app_info_get_fallback_for_type (const gchar *content_type);
void g_app_info_reset_type_associations (const char *content_type);
GAppInfo *g_app_info_get_default_for_type (const char *content_type,
gboolean must_support_uris);

127
gio/gdesktopappinfo.c
View File

@ -67,7 +67,8 @@
static void g_desktop_app_info_iface_init (GAppInfoIface *iface);
static GList * get_all_desktop_entries_for_mime_type (const char *base_mime_type,
const char **except);
const char **except,
gboolean include_fallback);
static void mime_info_cache_reload (const char *dir);
static gboolean g_desktop_app_info_ensure_saved (GDesktopAppInfo *info,
GError **error);
@ -1722,6 +1723,72 @@ app_info_in_list (GAppInfo *info,
return FALSE;
}
GList *
g_app_info_get_recommended_for_type (const gchar *content_type)
{
GList *desktop_entries, *l;
GList *infos;
GDesktopAppInfo *info;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, FALSE);
infos = NULL;
for (l = desktop_entries; l != NULL; l = l->next)
{
char *desktop_entry = l->data;
info = g_desktop_app_info_new (desktop_entry);
if (info)
{
if (app_info_in_list (G_APP_INFO (info), infos))
g_object_unref (info);
else
infos = g_list_prepend (infos, info);
}
g_free (desktop_entry);
}
g_list_free (desktop_entries);
return g_list_reverse (infos);
}
GList *
g_app_info_get_fallback_for_type (const gchar *content_type)
{
GList *desktop_entries, *l;
GList *infos, *recommended_infos;
GDesktopAppInfo *info;
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE);
recommended_infos = g_app_info_get_recommended_for_type (content_type);
infos = NULL;
for (l = desktop_entries; l != NULL; l = l->next)
{
char *desktop_entry = l->data;
info = g_desktop_app_info_new (desktop_entry);
if (info)
{
if (app_info_in_list (G_APP_INFO (info), infos) ||
app_info_in_list (G_APP_INFO (info), recommended_infos))
g_object_unref (info);
else
infos = g_list_prepend (infos, info);
}
g_free (desktop_entry);
}
g_list_free (desktop_entries);
g_list_free_full (recommended_infos, g_object_unref);
return g_list_reverse (infos);
}
/**
* g_app_info_get_all_for_type:
@ -1741,7 +1808,7 @@ g_app_info_get_all_for_type (const char *content_type)
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE);
infos = NULL;
for (l = desktop_entries; l != NULL; l = l->next)
@ -1800,7 +1867,7 @@ g_app_info_get_default_for_type (const char *content_type,
g_return_val_if_fail (content_type != NULL, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL);
desktop_entries = get_all_desktop_entries_for_mime_type (content_type, NULL, TRUE);
info = NULL;
for (l = desktop_entries; l != NULL; l = l->next)
@ -2542,7 +2609,8 @@ append_desktop_entry (GList *list,
*/
static GList *
get_all_desktop_entries_for_mime_type (const char *base_mime_type,
const char **except)
const char **except,
gboolean include_fallback)
{
GList *desktop_entries, *removed_entries, *list, *dir_list, *tmp;
MimeInfoCacheDir *dir;
@ -2556,29 +2624,38 @@ get_all_desktop_entries_for_mime_type (const char *base_mime_type,
mime_info_cache_init ();
/* collect all ancestors */
mime_types = _g_unix_content_type_get_parents (base_mime_type);
array = g_ptr_array_new ();
for (i = 0; mime_types[i]; i++)
g_ptr_array_add (array, mime_types[i]);
g_free (mime_types);
for (i = 0; i < array->len; i++)
if (include_fallback)
{
anc = _g_unix_content_type_get_parents (g_ptr_array_index (array, i));
for (j = 0; anc[j]; j++)
{
for (k = 0; k < array->len; k++)
{
if (strcmp (anc[j], g_ptr_array_index (array, k)) == 0)
break;
}
if (k == array->len) /* not found */
g_ptr_array_add (array, g_strdup (anc[j]));
}
g_strfreev (anc);
/* collect all ancestors */
mime_types = _g_unix_content_type_get_parents (base_mime_type);
array = g_ptr_array_new ();
for (i = 0; mime_types[i]; i++)
g_ptr_array_add (array, mime_types[i]);
g_free (mime_types);
for (i = 0; i < array->len; i++)
{
anc = _g_unix_content_type_get_parents (g_ptr_array_index (array, i));
for (j = 0; anc[j]; j++)
{
for (k = 0; k < array->len; k++)
{
if (strcmp (anc[j], g_ptr_array_index (array, k)) == 0)
break;
}
if (k == array->len) /* not found */
g_ptr_array_add (array, g_strdup (anc[j]));
}
g_strfreev (anc);
}
g_ptr_array_add (array, NULL);
mime_types = (char **)g_ptr_array_free (array, FALSE);
}
else
{
mime_types = g_malloc0 (2 * sizeof (gchar *));
mime_types[0] = g_strdup (base_mime_type);
mime_types[1] = NULL;
}
g_ptr_array_add (array, NULL);
mime_types = (char **)g_ptr_array_free (array, FALSE);
G_LOCK (mime_info_cache);