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GAppInfo: Add async API to get default Application for URI scheme

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Make possible to fetch the default application for URI scheme in a
thread without using blocking I/O.
This commit is contained in:
Marco Trevisan (Treviño) 2022-06-01 21:45:58 +02:00
parent 73b29e8f6e
commit 8aee5fc628
4 changed files with 153 additions and 11 deletions
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2
docs/reference/gio/gio-sections-common.txt
View File

@ -1445,6 +1445,8 @@ g_app_info_get_default_for_type
g_app_info_get_default_for_type_async
g_app_info_get_default_for_type_finish
g_app_info_get_default_for_uri_scheme
g_app_info_get_default_for_uri_scheme_async
g_app_info_get_default_for_uri_scheme_finish
g_app_info_get_fallback_for_type
g_app_info_get_recommended_for_type
g_app_info_launch_default_for_uri

82
gio/gappinfo.c
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@ -851,6 +851,88 @@ g_app_info_get_default_for_type_async (const char *content_type,
g_object_unref (task);
}
static void
get_default_for_scheme_thread (GTask *task,
gpointer object,
gpointer task_data,
GCancellable *cancellable)
{
const char *uri_scheme = task_data;
GAppInfo *info;
info = g_app_info_get_default_for_uri_scheme (uri_scheme);
if (!info)
{
g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_NOT_FOUND,
_("Failed to find default application for "
"URI Scheme ‘%s’"), uri_scheme);
return;
}
g_task_return_pointer (task, g_steal_pointer (&info), g_object_unref);
}
/**
* g_app_info_get_default_for_uri_scheme_async:
* @uri_scheme: a string containing a URI scheme.
* @cancellable: optional #GCancellable object, %NULL to ignore
* @callback: (nullable): a #GAsyncReadyCallback to call when the request is done
* @user_data: (nullable): data to pass to @callback
*
* Asynchronously gets the default application for handling URIs with
* the given URI scheme. A URI scheme is the initial part
* of the URI, up to but not including the ':', e.g. "http",
* "ftp" or "sip".
*
* Since: 2.74
*/
void
g_app_info_get_default_for_uri_scheme_async (const char *uri_scheme,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GTask *task;
g_return_if_fail (uri_scheme != NULL && *uri_scheme != '\0');
g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
task = g_task_new (NULL, cancellable, callback, user_data);
g_task_set_source_tag (task, g_app_info_get_default_for_uri_scheme_async);
g_task_set_task_data (task, g_strdup (uri_scheme), g_free);
g_task_set_check_cancellable (task, TRUE);
g_task_run_in_thread (task, get_default_for_scheme_thread);
g_object_unref (task);
}
/**
* g_app_info_get_default_for_uri_scheme_finish:
* @result: a #GAsyncResult
* @error: (nullable): a #GError
*
* Finishes a default #GAppInfo lookup started by
* g_app_info_get_default_for_uri_scheme_async().
*
* If no #GAppInfo is found, then @error will be set to %G_IO_ERROR_NOT_FOUND.
*
* Returns: (transfer full): #GAppInfo for given @uri_scheme or
* %NULL on error.
*
* Since: 2.74
*/
GAppInfo *
g_app_info_get_default_for_uri_scheme_finish (GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (g_task_is_valid (result, NULL), NULL);
g_return_val_if_fail (g_task_get_source_tag (G_TASK (result)) ==
g_app_info_get_default_for_uri_scheme_async, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
return g_task_propagate_pointer (G_TASK (result), error);
}
/**
* g_app_info_get_default_for_type_finish:
* @result: a #GAsyncResult

9
gio/gappinfo.h
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@ -258,6 +258,15 @@ GAppInfo *g_app_info_get_default_for_type_finish (GAsyncResult *result,
GLIB_AVAILABLE_IN_ALL
GAppInfo *g_app_info_get_default_for_uri_scheme (const char *uri_scheme);
GLIB_AVAILABLE_IN_2_74
void g_app_info_get_default_for_uri_scheme_async (const char *uri_scheme,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
GLIB_AVAILABLE_IN_2_74
GAppInfo *g_app_info_get_default_for_uri_scheme_finish (GAsyncResult *result,
GError **error);
GLIB_AVAILABLE_IN_ALL
gboolean g_app_info_launch_default_for_uri (const char *uri,
GAppLaunchContext *context,

71
gio/tests/desktop-app-info.c
View File

@ -195,18 +195,10 @@ typedef struct
} DefaultForTypeData;
static void
on_default_for_type_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
ensure_default_type_result (GAppInfo *info,
DefaultForTypeData *data,
GError *error)
{
GAppInfo *info;
GError *error = NULL;
DefaultForTypeData *data = user_data;
g_assert_null (object);
info = g_app_info_get_default_for_type_finish (result, &error);
if (data->expected_info)
{
g_assert_nonnull (info);
@ -224,6 +216,38 @@ on_default_for_type_cb (GObject *object,
g_clear_error (&error);
}
static void
on_default_for_type_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GAppInfo *info;
GError *error = NULL;
DefaultForTypeData *data = user_data;
g_assert_null (object);
info = g_app_info_get_default_for_type_finish (result, &error);
ensure_default_type_result (info, data, error);
}
static void
on_default_for_uri_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GAppInfo *info;
GError *error = NULL;
DefaultForTypeData *data = user_data;
g_assert_null (object);
info = g_app_info_get_default_for_uri_scheme_finish (result, &error);
ensure_default_type_result (info, data, error);
}
static void
test_default_async (void)
{
@ -279,6 +303,24 @@ test_default_async (void)
NULL, on_default_for_type_cb, &data);
g_main_loop_run (data.loop);
g_app_info_set_as_default_for_type (info3, "x-scheme-handler/glib-async", &error);
g_assert_no_error (error);
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL,
"*assertion*uri_scheme*failed*");
g_assert_null (g_app_info_get_default_for_uri_scheme (NULL));
g_test_assert_expected_messages ();
g_test_expect_message (G_LOG_DOMAIN, G_LOG_LEVEL_CRITICAL,
"*assertion*uri_scheme*failed*");
g_assert_null (g_app_info_get_default_for_uri_scheme (""));
g_test_assert_expected_messages ();
data.expected_info = info3;
g_app_info_get_default_for_uri_scheme_async ("glib-async", NULL,
on_default_for_uri_cb, &data);
g_main_loop_run (data.loop);
/* now clean it all up */
g_app_info_reset_type_associations ("application/x-test");
@ -287,6 +329,13 @@ test_default_async (void)
NULL, on_default_for_type_cb, &data);
g_main_loop_run (data.loop);
g_app_info_reset_type_associations ("x-scheme-handler/glib-async");
data.expected_info = NULL;
g_app_info_get_default_for_uri_scheme_async ("glib-async", NULL,
on_default_for_uri_cb, &data);
g_main_loop_run (data.loop);
list = g_app_info_get_all_for_type ("application/x-test");
g_assert_null (list);