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gappinfo: Use g_app_info_launch_uris_async() for async calls
Currently, the g_app_info_launch_default_for_uri_async() function uses g_app_info_launch_uris(), which is not fully asynchronous and may cause for example Nautilus freezes. Let's use the g_app_info_launch_uris_async() function to prevent the freezes. Closes: https://gitlab.gnome.org/GNOME/glib/issues/1347 https://gitlab.gnome.org/GNOME/glib/issues/1249
This commit is contained in:
Ondrej Holy
parent
cec5778cad
commit
904bb264e9
249
gio/gappinfo.c
249
gio/gappinfo.c
@ -765,15 +765,31 @@ g_app_info_should_show (GAppInfo *appinfo)
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return (* iface->should_show) (appinfo);
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}
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static gboolean
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launch_default_for_uri (const char *uri,
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GAppLaunchContext *context,
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GError **error)
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/**
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* g_app_info_launch_default_for_uri:
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* @uri: the uri to show
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* @context: (nullable): an optional #GAppLaunchContext
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* @error: (nullable): return location for an error, or %NULL
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*
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* Utility function that launches the default application
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* registered to handle the specified uri. Synchronous I/O
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* is done on the uri to detect the type of the file if
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* required.
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*
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* The D-Bus–activated applications don't have to be started if your application
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* terminates too soon after this function. To prevent this, use
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* g_app_info_launch_default_for_uri() instead.
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*
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* Returns: %TRUE on success, %FALSE on error.
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**/
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gboolean
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g_app_info_launch_default_for_uri (const char *uri,
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GAppLaunchContext *launch_context,
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GError **error)
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{
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char *uri_scheme;
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GAppInfo *app_info = NULL;
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GList l;
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gboolean res;
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gboolean res = FALSE;
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/* g_file_query_default_handler() calls
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* g_app_info_get_default_for_uri_scheme() too, but we have to do it
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@ -793,41 +809,18 @@ launch_default_for_uri (const char *uri,
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g_object_unref (file);
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}
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if (app_info == NULL)
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return FALSE;
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if (app_info)
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{
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GList l;
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l.data = (char *)uri;
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l.next = l.prev = NULL;
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res = g_app_info_launch_uris (app_info, &l, context, error);
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g_object_unref (app_info);
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return res;
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}
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/**
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* g_app_info_launch_default_for_uri:
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* @uri: the uri to show
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* @context: (nullable): an optional #GAppLaunchContext
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* @error: (nullable): return location for an error, or %NULL
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*
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* Utility function that launches the default application
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* registered to handle the specified uri. Synchronous I/O
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* is done on the uri to detect the type of the file if
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* required.
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*
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* Returns: %TRUE on success, %FALSE on error.
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**/
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gboolean
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g_app_info_launch_default_for_uri (const char *uri,
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GAppLaunchContext *launch_context,
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GError **error)
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{
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if (launch_default_for_uri (uri, launch_context, error))
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return TRUE;
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l.data = (char *)uri;
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l.next = l.prev = NULL;
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res = g_app_info_launch_uris (app_info, &l, launch_context, error);
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g_object_unref (app_info);
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}
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#ifdef G_OS_UNIX
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if (glib_should_use_portal ())
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if (!res && glib_should_use_portal ())
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{
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const char *parent_window = NULL;
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@ -838,11 +831,126 @@ g_app_info_launch_default_for_uri (const char *uri,
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parent_window = g_environ_getenv (launch_context->priv->envp, "PARENT_WINDOW_ID");
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return g_openuri_portal_open_uri (uri, parent_window, error);
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}
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#endif
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return FALSE;
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return res;
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}
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typedef struct
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{
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gchar *uri;
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GAppLaunchContext *context;
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} LaunchDefaultForUriData;
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static void
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launch_default_for_uri_data_free (LaunchDefaultForUriData *data)
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{
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g_free (data->uri);
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g_clear_object (&data->context);
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g_free (data);
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}
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#ifdef G_OS_UNIX
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static void
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launch_default_for_uri_portal_open_uri_cb (GObject *object,
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GAsyncResult *result,
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gpointer user_data)
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{
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GTask *task = G_TASK (user_data);
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GError *error = NULL;
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if (g_openuri_portal_open_uri_finish (result, &error))
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g_task_return_boolean (task, TRUE);
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else
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g_task_return_error (task, g_steal_pointer (&error));
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g_object_unref (task);
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}
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#endif
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static void
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launch_default_for_uri_portal_open_uri (GTask *task, GError *error)
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{
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#ifdef G_OS_UNIX
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LaunchDefaultForUriData *data = g_task_get_task_data (task);
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GCancellable *cancellable = g_task_get_cancellable (task);
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if (glib_should_use_portal ())
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{
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const char *parent_window = NULL;
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/* Reset any error previously set by launch_default_for_uri */
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g_error_free (error);
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if (data->context && data->context->priv->envp)
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parent_window = g_environ_getenv (data->context->priv->envp,
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"PARENT_WINDOW_ID");
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g_openuri_portal_open_uri_async (data->uri,
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parent_window,
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cancellable,
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launch_default_for_uri_portal_open_uri_cb,
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g_steal_pointer (&task));
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return;
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}
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#endif
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g_task_return_error (task, g_steal_pointer (&error));
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g_object_unref (task);
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}
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static void
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launch_default_for_uri_launch_uris_cb (GObject *object,
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GAsyncResult *result,
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gpointer user_data)
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{
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GAppInfo *app_info = G_APP_INFO (object);
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GTask *task = G_TASK (user_data);
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GError *error = NULL;
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if (g_app_info_launch_uris_finish (app_info, result, &error))
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{
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g_task_return_boolean (task, TRUE);
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g_object_unref (task);
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}
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else
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launch_default_for_uri_portal_open_uri (g_steal_pointer (&task), g_steal_pointer (&error));
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}
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static void
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launch_default_for_uri_launch_uris (GTask *task,
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GAppInfo *app_info)
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{
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GCancellable *cancellable = g_task_get_cancellable (task);
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GList l;
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LaunchDefaultForUriData *data = g_task_get_task_data (task);
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l.data = (char *)data->uri;
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l.next = l.prev = NULL;
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g_app_info_launch_uris_async (app_info,
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&l,
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data->context,
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cancellable,
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launch_default_for_uri_launch_uris_cb,
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g_steal_pointer (&task));
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g_object_unref (app_info);
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}
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static void
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launch_default_for_uri_default_handler_cb (GObject *object,
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GAsyncResult *result,
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gpointer user_data)
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{
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GFile *file = G_FILE (object);
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GTask *task = G_TASK (user_data);
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GAppInfo *app_info = NULL;
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GError *error = NULL;
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app_info = g_file_query_default_handler_finish (file, result, &error);
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if (app_info)
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launch_default_for_uri_launch_uris (g_steal_pointer (&task), g_steal_pointer (&app_info));
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else
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launch_default_for_uri_portal_open_uri (g_steal_pointer (&task), g_steal_pointer (&error));
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}
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/**
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@ -860,6 +968,10 @@ g_app_info_launch_default_for_uri (const char *uri,
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* sandboxed and the portal may present an application chooser
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* dialog to the user.
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*
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* This is also useful if you want to be sure that the D-Bus–activated
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* applications are really started before termination and if you are interested
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* in receiving error information from their activation.
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*
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* Since: 2.50
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*/
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void
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@ -869,32 +981,45 @@ g_app_info_launch_default_for_uri_async (const char *uri,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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gboolean res;
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GError *error = NULL;
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GTask *task;
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char *uri_scheme;
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GAppInfo *app_info = NULL;
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LaunchDefaultForUriData *data;
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res = launch_default_for_uri (uri, context, &error);
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g_return_if_fail (uri != NULL);
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#ifdef G_OS_UNIX
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if (!res && glib_should_use_portal ())
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task = g_task_new (NULL, cancellable, callback, user_data);
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g_task_set_source_tag (task, g_app_info_launch_default_for_uri_async);
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data = g_new (LaunchDefaultForUriData, 1);
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data->uri = g_strdup (uri);
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data->context = (context != NULL) ? g_object_ref (context) : NULL;
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g_task_set_task_data (task, g_steal_pointer (&data), (GDestroyNotify) launch_default_for_uri_data_free);
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/* g_file_query_default_handler_async() calls
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* g_app_info_get_default_for_uri_scheme() too, but we have to do it
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* here anyway in case GFile can't parse @uri correctly.
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*/
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uri_scheme = g_uri_parse_scheme (uri);
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if (uri_scheme && uri_scheme[0] != '\0')
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/* FIXME: The following still uses blocking calls. */
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app_info = g_app_info_get_default_for_uri_scheme (uri_scheme);
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g_free (uri_scheme);
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if (!app_info)
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{
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const char *parent_window = NULL;
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GFile *file;
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if (context && context->priv->envp)
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parent_window = g_environ_getenv (context->priv->envp, "PARENT_WINDOW_ID");
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g_openuri_portal_open_uri_async (uri, parent_window, cancellable, callback, user_data);
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return;
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file = g_file_new_for_uri (uri);
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g_file_query_default_handler_async (file,
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G_PRIORITY_DEFAULT,
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cancellable,
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launch_default_for_uri_default_handler_cb,
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g_steal_pointer (&task));
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g_object_unref (file);
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}
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#endif
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task = g_task_new (context, cancellable, callback, user_data);
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if (!res)
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g_task_return_error (task, error);
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else
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g_task_return_boolean (task, TRUE);
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g_object_unref (task);
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launch_default_for_uri_launch_uris (g_steal_pointer (&task), g_steal_pointer (&app_info));
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}
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/**
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@ -912,11 +1037,9 @@ gboolean
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g_app_info_launch_default_for_uri_finish (GAsyncResult *result,
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GError **error)
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{
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#ifdef G_OS_UNIX
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return g_openuri_portal_open_uri_finish (result, error);
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#else
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g_return_val_if_fail (g_task_is_valid (result, NULL), FALSE);
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return g_task_propagate_boolean (G_TASK (result), error);
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#endif
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}
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/**
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