static EMsgComposer *
composer_registry_lookup (GQueue *registry,
const gchar *basename)
{
GList *iter;
/* Find the composer with the given snapshot filename. */
for (iter = registry->head; iter != NULL; iter = iter->next) {
EMsgComposer *composer;
GFile *snapshot_file;
gchar *snapshot_name;
composer = E_MSG_COMPOSER (iter->data);
snapshot_file = e_composer_get_snapshot_file (composer);
if (!G_IS_FILE (snapshot_file))
continue;
snapshot_name = g_file_get_basename (snapshot_file);
if (g_strcmp0 (basename, snapshot_name) == 0) {
g_free (snapshot_name);
return composer;
}
g_free (snapshot_name);
}
return NULL;
}
void
e_composer_save_snapshot (EMsgComposer *composer,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GSimpleAsyncResult *simple;
SaveContext *context;
GFile *snapshot_file;
GError *local_error = NULL;
g_return_if_fail (E_IS_MSG_COMPOSER (composer));
context = g_slice_new0 (SaveContext);
if (G_IS_CANCELLABLE (cancellable))
context->cancellable = g_object_ref (cancellable);
simple = g_simple_async_result_new (
G_OBJECT (composer), callback, user_data,
e_composer_save_snapshot);
g_simple_async_result_set_check_cancellable (simple, cancellable);
g_simple_async_result_set_op_res_gpointer (
simple, context, (GDestroyNotify) save_context_free);
snapshot_file = e_composer_get_snapshot_file (composer);
if (!G_IS_FILE (snapshot_file))
snapshot_file = create_snapshot_file (composer, &local_error);
if (local_error != NULL) {
g_warn_if_fail (snapshot_file == NULL);
g_simple_async_result_take_error (simple, local_error);
g_simple_async_result_complete (simple);
g_object_unref (simple);
return;
}
g_return_if_fail (G_IS_FILE (snapshot_file));
g_file_replace_async (
snapshot_file, NULL, FALSE,
G_FILE_CREATE_PRIVATE, G_PRIORITY_DEFAULT,
context->cancellable, (GAsyncReadyCallback)
save_snapshot_replace_cb, simple);
}
static GFile *
create_snapshot_file (EMsgComposer *composer,
GError **error)
{
GFile *snapshot_file;
const gchar *user_data_dir;
gchar *path;
gint fd;
snapshot_file = e_composer_get_snapshot_file (composer);
if (G_IS_FILE (snapshot_file))
return snapshot_file;
user_data_dir = e_get_user_data_dir ();
path = g_build_filename (user_data_dir, SNAPSHOT_FILE_SEED, NULL);
/* g_mkstemp() modifies the XXXXXX part of the
* template string to form the actual filename. */
errno = 0;
fd = g_mkstemp (path);
if (fd == -1) {
g_set_error (
error, G_FILE_ERROR,
g_file_error_from_errno (errno),
"%s", g_strerror (errno));
g_free (path);
return NULL;
}
close (fd);
snapshot_file = g_file_new_for_path (path);
/* Save the GFile for subsequent snapshots. */
g_object_set_data_full (
G_OBJECT (composer),
SNAPSHOT_FILE_KEY, snapshot_file,
(GDestroyNotify) delete_snapshot_file);
g_free (path);
return snapshot_file;
}
