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/* foundry-intent-manager.c
*
* Copyright 2025 Christian Hergert
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "config.h"
#include "foundry-extension-set.h"
#include "foundry-intent.h"
#include "foundry-intent-handler.h"
#include "foundry-intent-manager.h"
#include "foundry-util.h"
/**
* FoundryIntentManager:
*
* The intent manager provides a generic mechanism to handle intents
* within an application.
*
* This could include opening a file with the OpeFileIntent, or other
* custom intents.
*
* [class@Foundry.IntentHandler] may be registered to handle these
* intents or ignore them for the next handler to handle them.
*
* Since: 1.1
*/
struct _FoundryIntentManager
{
FoundryService parent_instance;
};
G_DEFINE_FINAL_TYPE (FoundryIntentManager, foundry_intent_manager, FOUNDRY_TYPE_SERVICE)
static void
foundry_intent_manager_class_init (FoundryIntentManagerClass *klass)
{
}
static void
foundry_intent_manager_init (FoundryIntentManager *self)
{
}
static void
collect_addins_cb (FoundryExtensionSet *set,
PeasPluginInfo *plugin_info,
GObject *extension,
gpointer user_data)
{
GPtrArray *collect = user_data;
g_ptr_array_add (collect, g_object_ref (extension));
}
static DexFuture *
foundry_intent_manager_dispatch_fiber (FoundryIntentManager *self,
FoundryIntent *intent)
{
g_autoptr(FoundryExtensionSet) addins = NULL;
g_autoptr(FoundryContext) context = NULL;
g_autoptr(GPtrArray) collect = NULL;
g_autoptr(GError) error = NULL;
g_assert (FOUNDRY_IS_INTENT_MANAGER (self));
g_assert (FOUNDRY_IS_INTENT (intent));
if (!(context = foundry_contextual_acquire (FOUNDRY_CONTEXTUAL (self), &error)))
return dex_future_new_for_error (g_steal_pointer (&error));
/* Collect all addins first so that plugin unloading will not
* affect the runtime operation of our async awaits.
*/
collect = g_ptr_array_new_with_free_func (g_object_unref);
addins = foundry_extension_set_new (context,
peas_engine_get_default (),
FOUNDRY_TYPE_INTENT_HANDLER,
"Intent-Handler", "*", NULL);
foundry_extension_set_foreach_by_priority (addins, collect_addins_cb, collect);
g_clear_object (&addins);
g_debug ("Trying intent with %u handlers", collect->len);
if (collect->len == 0)
return foundry_future_new_not_supported ();
/* Dispatch to handlers by priority. */
for (guint i = 0; i < collect->len; i++)
{
FoundryIntentHandler *handler = g_ptr_array_index (collect, i);
g_autoptr(GListModel) results = NULL;
g_autoptr(DexFuture) future = NULL;
g_autoptr(GError) dispatch_error = NULL;
g_debug ("Trying intent with `%s`", G_OBJECT_TYPE_NAME (handler));
future = foundry_intent_handler_dispatch (handler, intent);
if (dex_await (dex_ref (future), &dispatch_error))
return dex_ref (future);
if (error == NULL &&
!g_error_matches (dispatch_error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
error = g_steal_pointer (&dispatch_error);
}
/* Bail with first non-synthetic error */
if (error != NULL)
return dex_future_new_for_error (g_steal_pointer (&error));
return foundry_future_new_not_supported ();
}
/**
* foundry_intent_manager_dispatch:
* @self: a [class@Foundry.IntentManager]
* @intent: a [class@Foundry.Intent]
*
* Dispatch the intent to the first handler which can handle it.
*
* Returns: (transfer full): a [class@Dex.Future] that resolves to any value
* if sucessful or rejects with error.
*
* Since: 1.1
*/
DexFuture *
foundry_intent_manager_dispatch (FoundryIntentManager *self,
FoundryIntent *intent)
{
dex_return_error_if_fail (FOUNDRY_IS_INTENT_MANAGER (self));
dex_return_error_if_fail (FOUNDRY_IS_INTENT (intent));
return foundry_scheduler_spawn (NULL, 0,
G_CALLBACK (foundry_intent_manager_dispatch_fiber),
2,
FOUNDRY_TYPE_INTENT_MANAGER, self,
FOUNDRY_TYPE_INTENT, intent);
}
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