PIKApp/app/plug-in/pikapluginmanager.c

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2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995-2002 Spencer Kimball, Peter Mattis, and others
*
* pikapluginmanager.c
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "libpikabase/pikabase.h"
#include "libpikaconfig/pikaconfig.h"
#include "plug-in-types.h"
#include "config/pikacoreconfig.h"
#include "core/pika.h"
#include "core/pika-filter-history.h"
#include "core/pika-memsize.h"
#include "core/pikamarshal.h"
#include "pdb/pikapdb.h"
#include "pikaenvirontable.h"
#include "pikainterpreterdb.h"
#include "pikaplugin.h"
#include "pikaplugindebug.h"
#include "pikaplugindef.h"
#include "pikapluginmanager.h"
#include "pikapluginmanager-data.h"
#include "pikapluginmanager-help-domain.h"
#include "pikapluginmanager-menu-branch.h"
#include "pikapluginshm.h"
#include "pikatemporaryprocedure.h"
#include "pika-intl.h"
enum
{
PLUG_IN_OPENED,
PLUG_IN_CLOSED,
MENU_BRANCH_ADDED,
LAST_SIGNAL
};
static void pika_plug_in_manager_finalize (GObject *object);
static gint64 pika_plug_in_manager_get_memsize (PikaObject *object,
gint64 *gui_size);
G_DEFINE_TYPE (PikaPlugInManager, pika_plug_in_manager, PIKA_TYPE_OBJECT)
#define parent_class pika_plug_in_manager_parent_class
static guint manager_signals[LAST_SIGNAL] = { 0, };
static void
pika_plug_in_manager_class_init (PikaPlugInManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaObjectClass *pika_object_class = PIKA_OBJECT_CLASS (klass);
manager_signals[PLUG_IN_OPENED] =
g_signal_new ("plug-in-opened",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (PikaPlugInManagerClass,
plug_in_opened),
NULL, NULL, NULL,
G_TYPE_NONE, 1,
PIKA_TYPE_PLUG_IN);
manager_signals[PLUG_IN_CLOSED] =
g_signal_new ("plug-in-closed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (PikaPlugInManagerClass,
plug_in_closed),
NULL, NULL, NULL,
G_TYPE_NONE, 1,
PIKA_TYPE_PLUG_IN);
manager_signals[MENU_BRANCH_ADDED] =
g_signal_new ("menu-branch-added",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (PikaPlugInManagerClass,
menu_branch_added),
NULL, NULL,
pika_marshal_VOID__OBJECT_STRING_STRING,
G_TYPE_NONE, 3,
G_TYPE_FILE,
G_TYPE_STRING,
G_TYPE_STRING);
object_class->finalize = pika_plug_in_manager_finalize;
pika_object_class->get_memsize = pika_plug_in_manager_get_memsize;
}
static void
pika_plug_in_manager_init (PikaPlugInManager *manager)
{
}
static void
pika_plug_in_manager_finalize (GObject *object)
{
PikaPlugInManager *manager = PIKA_PLUG_IN_MANAGER (object);
g_clear_pointer (&manager->load_procs, g_slist_free);
g_clear_pointer (&manager->save_procs, g_slist_free);
g_clear_pointer (&manager->export_procs, g_slist_free);
g_clear_pointer (&manager->raw_load_procs, g_slist_free);
g_clear_pointer (&manager->batch_procs, g_slist_free);
g_clear_pointer (&manager->display_load_procs, g_slist_free);
g_clear_pointer (&manager->display_save_procs, g_slist_free);
g_clear_pointer (&manager->display_export_procs, g_slist_free);
g_clear_pointer (&manager->display_raw_load_procs, g_slist_free);
if (manager->plug_in_procedures)
{
g_slist_free_full (manager->plug_in_procedures,
(GDestroyNotify) g_object_unref);
manager->plug_in_procedures = NULL;
}
if (manager->plug_in_defs)
{
g_slist_free_full (manager->plug_in_defs,
(GDestroyNotify) g_object_unref);
manager->plug_in_defs = NULL;
}
g_clear_object (&manager->environ_table);
g_clear_object (&manager->interpreter_db);
g_clear_pointer (&manager->debug, pika_plug_in_debug_free);
pika_plug_in_manager_menu_branch_exit (manager);
pika_plug_in_manager_help_domain_exit (manager);
pika_plug_in_manager_data_free (manager);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gint64
pika_plug_in_manager_get_memsize (PikaObject *object,
gint64 *gui_size)
{
PikaPlugInManager *manager = PIKA_PLUG_IN_MANAGER (object);
gint64 memsize = 0;
memsize += pika_g_slist_get_memsize_foreach (manager->plug_in_defs,
(PikaMemsizeFunc)
pika_object_get_memsize,
gui_size);
memsize += pika_g_slist_get_memsize (manager->plug_in_procedures, 0);
memsize += pika_g_slist_get_memsize (manager->load_procs, 0);
memsize += pika_g_slist_get_memsize (manager->save_procs, 0);
memsize += pika_g_slist_get_memsize (manager->export_procs, 0);
memsize += pika_g_slist_get_memsize (manager->raw_load_procs, 0);
memsize += pika_g_slist_get_memsize (manager->batch_procs, 0);
memsize += pika_g_slist_get_memsize (manager->display_load_procs, 0);
memsize += pika_g_slist_get_memsize (manager->display_save_procs, 0);
memsize += pika_g_slist_get_memsize (manager->display_export_procs, 0);
memsize += pika_g_slist_get_memsize (manager->display_raw_load_procs, 0);
memsize += pika_g_slist_get_memsize (manager->menu_branches, 0 /* FIXME */);
memsize += pika_g_slist_get_memsize (manager->help_domains, 0 /* FIXME */);
memsize += pika_g_slist_get_memsize_foreach (manager->open_plug_ins,
(PikaMemsizeFunc)
pika_object_get_memsize,
gui_size);
memsize += pika_g_slist_get_memsize (manager->plug_in_stack, 0);
memsize += 0; /* FIXME manager->shm */
memsize += /* FIXME */ pika_g_object_get_memsize (G_OBJECT (manager->interpreter_db));
memsize += /* FIXME */ pika_g_object_get_memsize (G_OBJECT (manager->environ_table));
memsize += 0; /* FIXME manager->plug_in_debug */
memsize += pika_g_list_get_memsize (manager->data_list, 0 /* FIXME */);
return memsize + PIKA_OBJECT_CLASS (parent_class)->get_memsize (object,
gui_size);
}
PikaPlugInManager *
pika_plug_in_manager_new (Pika *pika)
{
PikaPlugInManager *manager;
manager = g_object_new (PIKA_TYPE_PLUG_IN_MANAGER, NULL);
manager->pika = pika;
manager->interpreter_db = pika_interpreter_db_new (pika->be_verbose);
manager->environ_table = pika_environ_table_new (pika->be_verbose);
return manager;
}
void
pika_plug_in_manager_initialize (PikaPlugInManager *manager,
PikaInitStatusFunc status_callback)
{
PikaCoreConfig *config;
GList *path;
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (status_callback != NULL);
config = manager->pika->config;
status_callback (NULL, _("Plug-in Interpreters"), 0.8);
path = pika_config_path_expand_to_files (config->interpreter_path, NULL);
pika_interpreter_db_load (manager->interpreter_db, path);
g_list_free_full (path, (GDestroyNotify) g_object_unref);
status_callback (NULL, _("Plug-in Environment"), 0.9);
path = pika_config_path_expand_to_files (config->environ_path, NULL);
pika_environ_table_load (manager->environ_table, path);
g_list_free_full (path, (GDestroyNotify) g_object_unref);
/* allocate a piece of shared memory for use in transporting tiles
* to plug-ins. if we can't allocate a piece of shared memory then
* we'll fall back on sending the data over the pipe.
*/
if (manager->pika->use_shm)
manager->shm = pika_plug_in_shm_new ();
manager->debug = pika_plug_in_debug_new ();
}
void
pika_plug_in_manager_exit (PikaPlugInManager *manager)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
while (manager->open_plug_ins)
pika_plug_in_close (manager->open_plug_ins->data, TRUE);
/* need to detach from shared memory, we can't rely on exit()
* cleaning up behind us (see bug #609026)
*/
if (manager->shm)
{
pika_plug_in_shm_free (manager->shm);
manager->shm = NULL;
}
}
void
pika_plug_in_manager_add_procedure (PikaPlugInManager *manager,
PikaPlugInProcedure *procedure)
{
GSList *list;
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (PIKA_IS_PLUG_IN_PROCEDURE (procedure));
for (list = manager->plug_in_procedures; list; list = list->next)
{
PikaPlugInProcedure *tmp_proc = list->data;
if (strcmp (pika_object_get_name (procedure),
pika_object_get_name (tmp_proc)) == 0)
{
GSList *list2;
list->data = g_object_ref (procedure);
g_printerr ("Removing duplicate PDB procedure '%s' "
"registered by '%s'\n",
pika_object_get_name (tmp_proc),
pika_file_get_utf8_name (tmp_proc->file));
/* search the plugin list to see if any plugins had references to
* the tmp_proc.
*/
for (list2 = manager->plug_in_defs; list2; list2 = list2->next)
{
PikaPlugInDef *plug_in_def = list2->data;
if (g_slist_find (plug_in_def->procedures, tmp_proc))
pika_plug_in_def_remove_procedure (plug_in_def, tmp_proc);
}
/* also remove it from the lists of load, save and export procs */
manager->load_procs = g_slist_remove (manager->load_procs, tmp_proc);
manager->save_procs = g_slist_remove (manager->save_procs, tmp_proc);
manager->export_procs = g_slist_remove (manager->export_procs, tmp_proc);
manager->raw_load_procs = g_slist_remove (manager->raw_load_procs, tmp_proc);
manager->batch_procs = g_slist_remove (manager->batch_procs, tmp_proc);
manager->display_load_procs = g_slist_remove (manager->display_load_procs, tmp_proc);
manager->display_save_procs = g_slist_remove (manager->display_save_procs, tmp_proc);
manager->display_export_procs = g_slist_remove (manager->display_export_procs, tmp_proc);
manager->display_raw_load_procs = g_slist_remove (manager->display_raw_load_procs, tmp_proc);
/* and from the history */
pika_filter_history_remove (manager->pika, PIKA_PROCEDURE (tmp_proc));
g_object_unref (tmp_proc);
return;
}
}
manager->plug_in_procedures = g_slist_prepend (manager->plug_in_procedures,
g_object_ref (procedure));
}
void
pika_plug_in_manager_add_batch_procedure (PikaPlugInManager *manager,
PikaPlugInProcedure *proc)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (PIKA_IS_PLUG_IN_PROCEDURE (proc));
if (! g_slist_find (manager->batch_procs, proc))
manager->batch_procs = g_slist_prepend (manager->batch_procs, proc);
}
GSList *
pika_plug_in_manager_get_batch_procedures (PikaPlugInManager *manager)
{
g_return_val_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager), NULL);
return manager->batch_procs;
}
void
pika_plug_in_manager_add_temp_proc (PikaPlugInManager *manager,
PikaTemporaryProcedure *procedure)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (PIKA_IS_TEMPORARY_PROCEDURE (procedure));
pika_pdb_register_procedure (manager->pika->pdb, PIKA_PROCEDURE (procedure));
manager->plug_in_procedures = g_slist_prepend (manager->plug_in_procedures,
g_object_ref (procedure));
}
void
pika_plug_in_manager_remove_temp_proc (PikaPlugInManager *manager,
PikaTemporaryProcedure *procedure)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (PIKA_IS_TEMPORARY_PROCEDURE (procedure));
manager->plug_in_procedures = g_slist_remove (manager->plug_in_procedures,
procedure);
pika_filter_history_remove (manager->pika,
PIKA_PROCEDURE (procedure));
pika_pdb_unregister_procedure (manager->pika->pdb,
PIKA_PROCEDURE (procedure));
g_object_unref (procedure);
}
void
pika_plug_in_manager_add_open_plug_in (PikaPlugInManager *manager,
PikaPlugIn *plug_in)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
manager->open_plug_ins = g_slist_prepend (manager->open_plug_ins,
g_object_ref (plug_in));
g_signal_emit (manager, manager_signals[PLUG_IN_OPENED], 0,
plug_in);
}
void
pika_plug_in_manager_remove_open_plug_in (PikaPlugInManager *manager,
PikaPlugIn *plug_in)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
manager->open_plug_ins = g_slist_remove (manager->open_plug_ins, plug_in);
g_signal_emit (manager, manager_signals[PLUG_IN_CLOSED], 0,
plug_in);
g_object_unref (plug_in);
}
void
pika_plug_in_manager_plug_in_push (PikaPlugInManager *manager,
PikaPlugIn *plug_in)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
g_return_if_fail (PIKA_IS_PLUG_IN (plug_in));
manager->current_plug_in = plug_in;
manager->plug_in_stack = g_slist_prepend (manager->plug_in_stack,
manager->current_plug_in);
}
void
pika_plug_in_manager_plug_in_pop (PikaPlugInManager *manager)
{
g_return_if_fail (PIKA_IS_PLUG_IN_MANAGER (manager));
if (manager->current_plug_in)
manager->plug_in_stack = g_slist_remove (manager->plug_in_stack,
manager->plug_in_stack->data);
if (manager->plug_in_stack)
manager->current_plug_in = manager->plug_in_stack->data;
else
manager->current_plug_in = NULL;
}