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gimp/app/plug-in/gimppluginmanager.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* plug-ins.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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "string.h"
#include <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpbase/gimpprotocol.h"
#include "libgimpbase/gimpwire.h"
#include "libgimpconfig/gimpconfig.h"
#include "plug-in-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "pdb/gimp-pdb.h"
#include "pdb/gimptemporaryprocedure.h"
#include "plug-in.h"
#include "plug-in-data.h"
#include "plug-in-def.h"
#include "plug-in-help-domain.h"
#include "plug-in-locale-domain.h"
#include "plug-in-menu-branch.h"
#include "plug-in-params.h"
#include "plug-in-progress.h"
#include "plug-in-rc.h"
#include "plug-ins.h"
#include "gimp-intl.h"
static void plug_ins_add_from_file (const GimpDatafileData *file_data,
gpointer data);
static void plug_ins_add_from_rc (Gimp *gimp,
PlugInDef *plug_in_def);
static void plug_ins_add_to_db (Gimp *gimp,
GimpContext *context);
static gint plug_ins_file_proc_compare (gconstpointer a,
gconstpointer b,
gpointer data);
/* public functions */
void
plug_ins_init (Gimp *gimp,
GimpContext *context,
GimpInitStatusFunc status_callback)
{
gchar *filename;
gchar *basename;
gchar *path;
GSList *rc_defs;
GSList *list;
GList *extensions = NULL;
gint n_plugins;
gint n_extensions;
gint nth;
GError *error = NULL;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_CONTEXT (context));
g_return_if_fail (status_callback != NULL);
plug_in_init (gimp);
/* search for binaries in the plug-in directory path */
status_callback (_("Searching Plug-Ins"), "", 0.0);
path = gimp_config_path_expand (gimp->config->plug_in_path, TRUE, NULL);
gimp_datafiles_read_directories (path,
G_FILE_TEST_IS_EXECUTABLE,
plug_ins_add_from_file,
&gimp->plug_in_defs);
g_free (path);
/* read the pluginrc file for cached data */
if (gimp->config->plug_in_rc_path)
{
filename = gimp_config_path_expand (gimp->config->plug_in_rc_path,
TRUE, NULL);
if (! g_path_is_absolute (filename))
{
gchar *str = g_build_filename (gimp_directory (), filename, NULL);
g_free (filename);
filename = str;
}
}
else
{
filename = gimp_personal_rc_file ("pluginrc");
}
status_callback (_("Resource configuration"),
gimp_filename_to_utf8 (filename), 0.0);
if (gimp->be_verbose)
g_print (_("Parsing '%s'\n"), gimp_filename_to_utf8 (filename));
rc_defs = plug_in_rc_parse (gimp, filename, &error);
if (rc_defs)
{
for (list = rc_defs; list; list = g_slist_next (list))
plug_ins_add_from_rc (gimp, list->data); /* consumes list->data */
g_slist_free (rc_defs);
}
else
{
if (error->code != GIMP_CONFIG_ERROR_OPEN_ENOENT)
g_message (error->message);
g_clear_error (&error);
}
/* query any plug-ins that have changed since we last wrote out
* the pluginrc file
*/
status_callback (_("Querying new Plug-ins"), "", 0.0);
for (list = gimp->plug_in_defs, n_plugins = 0; list; list = list->next)
{
PlugInDef *plug_in_def = list->data;
if (plug_in_def->needs_query)
n_plugins++;
}
if (n_plugins)
{
gimp->write_pluginrc = TRUE;
for (list = gimp->plug_in_defs, nth = 0; list; list = list->next)
{
PlugInDef *plug_in_def = list->data;
if (plug_in_def->needs_query)
{
basename = g_filename_display_basename (plug_in_def->prog);
status_callback (NULL, basename,
(gdouble) nth++ / (gdouble) n_plugins);
g_free (basename);
if (gimp->be_verbose)
g_print (_("Querying plug-in: '%s'\n"),
gimp_filename_to_utf8 (plug_in_def->prog));
plug_in_call_query (gimp, context, plug_in_def);
}
}
}
/* initialize the plug-ins */
status_callback (_("Initializing Plug-ins"), "", 0.0);
for (list = gimp->plug_in_defs, n_plugins = 0; list; list = list->next)
{
PlugInDef *plug_in_def = list->data;
if (plug_in_def->has_init)
n_plugins++;
}
if (n_plugins)
{
for (list = gimp->plug_in_defs, nth = 0; list; list = list->next)
{
PlugInDef *plug_in_def = list->data;
if (plug_in_def->has_init)
{
basename = g_filename_display_basename (plug_in_def->prog);
status_callback (NULL, basename,
(gdouble) nth++ / (gdouble) n_plugins);
g_free (basename);
if (gimp->be_verbose)
g_print (_("Initializing plug-in: '%s'\n"),
gimp_filename_to_utf8 (plug_in_def->prog));
plug_in_call_init (gimp, context, plug_in_def);
}
}
}
status_callback (NULL, "", 1.0);
/* add the procedures to gimp->plug_in_procedures */
for (list = gimp->plug_in_defs; list; list = list->next)
{
PlugInDef *plug_in_def = list->data;
GSList *list2;
for (list2 = plug_in_def->procedures; list2; list2 = list2->next)
{
plug_ins_procedure_add (gimp, list2->data);
}
}
/* write the pluginrc file if necessary */
if (gimp->write_pluginrc)
{
if (gimp->be_verbose)
g_print (_("Writing '%s'\n"), gimp_filename_to_utf8 (filename));
if (! plug_in_rc_write (gimp->plug_in_defs, filename, &error))
{
g_message ("%s", error->message);
g_clear_error (&error);
}
gimp->write_pluginrc = FALSE;
}
g_free (filename);
/* add the plug-in procs to the procedure database */
plug_ins_add_to_db (gimp, context);
/* create help_path and locale_domain lists */
for (list = gimp->plug_in_defs; list; list = list->next)
{
PlugInDef *plug_in_def = list->data;
if (plug_in_def->locale_domain_name)
plug_in_locale_domain_add (gimp,
plug_in_def->prog,
plug_in_def->locale_domain_name,
plug_in_def->locale_domain_path);
if (plug_in_def->help_domain_name)
plug_in_help_domain_add (gimp,
plug_in_def->prog,
plug_in_def->help_domain_name,
plug_in_def->help_domain_uri);
}
if (! gimp->no_interface)
{
gimp->load_procs = g_slist_sort_with_data (gimp->load_procs,
plug_ins_file_proc_compare,
gimp);
gimp->save_procs = g_slist_sort_with_data (gimp->save_procs,
plug_ins_file_proc_compare,
gimp);
gimp_menus_init (gimp, gimp->plug_in_defs,
plug_in_standard_locale_domain ());
}
/* build list of automatically started extensions */
for (list = gimp->plug_in_procedures, nth = 0; list; list = list->next, nth++)
{
GimpPlugInProcedure *proc = list->data;
if (proc->prog &&
GIMP_PROCEDURE (proc)->proc_type == GIMP_EXTENSION &&
GIMP_PROCEDURE (proc)->num_args == 0)
{
extensions = g_list_prepend (extensions, proc);
}
}
extensions = g_list_reverse (extensions);
n_extensions = g_list_length (extensions);
/* run the available extensions */
if (extensions)
{
GList *list;
status_callback (_("Starting Extensions"), "", 0.0);
for (list = extensions, nth = 0; list; list = g_list_next (list), nth++)
{
GimpPlugInProcedure *proc = list->data;
GValueArray *args;
if (gimp->be_verbose)
g_print (_("Starting extension: '%s'\n"),
GIMP_OBJECT (proc)->name);
status_callback (NULL, GIMP_OBJECT (proc)->name,
(gdouble) nth / (gdouble) n_extensions);
args = g_value_array_new (0);
gimp_procedure_execute_async (GIMP_PROCEDURE (proc),
gimp, context, NULL, args, -1);
g_value_array_free (args);
}
g_list_free (extensions);
}
status_callback ("", "", 1.0);
/* free up stuff */
g_slist_foreach (gimp->plug_in_defs, (GFunc) plug_in_def_free, NULL);
g_slist_free (gimp->plug_in_defs);
gimp->plug_in_defs = NULL;
}
void
plug_ins_exit (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
plug_in_exit (gimp);
plug_in_menu_branch_exit (gimp);
plug_in_locale_domain_exit (gimp);
plug_in_help_domain_exit (gimp);
plug_in_data_free (gimp);
g_slist_foreach (gimp->plug_in_procedures, (GFunc) g_object_unref, NULL);
g_slist_free (gimp->plug_in_procedures);
gimp->plug_in_procedures = NULL;
}
GimpPlugInProcedure *
plug_ins_file_register_magic (Gimp *gimp,
const gchar *name,
const gchar *extensions,
const gchar *prefixes,
const gchar *magics)
{
GimpPlugInProcedure *proc;
GSList *list;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (name != NULL, NULL);
if (gimp->current_plug_in && gimp->current_plug_in->plug_in_def)
list = gimp->current_plug_in->plug_in_def->procedures;
else
list = gimp->plug_in_procedures;
proc = gimp_plug_in_procedure_find (list, name);
if (proc)
gimp_plug_in_procedure_set_file_proc (proc, extensions, prefixes, magics);
return proc;
}
GimpPlugInProcedure *
plug_ins_file_register_mime (Gimp *gimp,
const gchar *name,
const gchar *mime_type)
{
GimpPlugInProcedure *proc;
GSList *list;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (name != NULL, NULL);
g_return_val_if_fail (mime_type != NULL, NULL);
if (gimp->current_plug_in && gimp->current_plug_in->plug_in_def)
list = gimp->current_plug_in->plug_in_def->procedures;
else
list = gimp->plug_in_procedures;
proc = gimp_plug_in_procedure_find (list, name);
if (proc)
gimp_plug_in_procedure_set_mime_type (proc, mime_type);
return proc;
}
GimpPlugInProcedure *
plug_ins_file_register_thumb_loader (Gimp *gimp,
const gchar *load_proc,
const gchar *thumb_proc)
{
GimpPlugInProcedure *proc;
GSList *list;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (load_proc, NULL);
g_return_val_if_fail (thumb_proc, NULL);
if (gimp->current_plug_in && gimp->current_plug_in->plug_in_def)
list = gimp->current_plug_in->plug_in_def->procedures;
else
list = gimp->plug_in_procedures;
proc = gimp_plug_in_procedure_find (list, load_proc);
if (proc)
gimp_plug_in_procedure_set_thumb_loader (proc, thumb_proc);
return proc;
}
void
plug_ins_procedure_add (Gimp *gimp,
GimpPlugInProcedure *proc)
{
GSList *list;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_PLUG_IN_PROCEDURE (proc));
for (list = gimp->plug_in_procedures; list; list = list->next)
{
GimpPlugInProcedure *tmp_proc = list->data;
if (strcmp (GIMP_OBJECT (proc)->name,
GIMP_OBJECT (tmp_proc)->name) == 0)
{
GSList *list2;
list->data = g_object_ref (proc);
g_printerr ("removing duplicate PDB procedure \"%s\" "
"registered by '%s'\n",
GIMP_OBJECT (tmp_proc)->name,
gimp_filename_to_utf8 (tmp_proc->prog));
/* search the plugin list to see if any plugins had references to
* the tmp_proc.
*/
for (list2 = gimp->plug_in_defs; list2; list2 = list2->next)
{
PlugInDef *plug_in_def = list2->data;
if (g_slist_find (plug_in_def->procedures, tmp_proc))
plug_in_def_remove_procedure (plug_in_def, tmp_proc);
}
/* also remove it from the lists of load and save procs */
gimp->load_procs = g_slist_remove (gimp->load_procs, tmp_proc);
gimp->save_procs = g_slist_remove (gimp->save_procs, tmp_proc);
g_object_unref (tmp_proc);
return;
}
}
gimp->plug_in_procedures = g_slist_prepend (gimp->plug_in_procedures,
g_object_ref (proc));
}
void
plug_ins_temp_procedure_add (Gimp *gimp,
GimpTemporaryProcedure *proc)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_TEMPORARY_PROCEDURE (proc));
if (! gimp->no_interface)
{
GimpPlugInProcedure *plug_in_proc = GIMP_PLUG_IN_PROCEDURE (proc);
if (plug_in_proc->menu_label || plug_in_proc->menu_paths)
gimp_menus_create_item (gimp, plug_in_proc, NULL);
}
/* Register the procedural database entry */
gimp_pdb_register (gimp, GIMP_PROCEDURE (proc));
/* Add the definition to the global list */
gimp->plug_in_procedures = g_slist_prepend (gimp->plug_in_procedures,
g_object_ref (proc));
}
void
plug_ins_temp_procedure_remove (Gimp *gimp,
GimpTemporaryProcedure *proc)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_TEMPORARY_PROCEDURE (proc));
if (! gimp->no_interface)
{
GimpPlugInProcedure *plug_in_proc = GIMP_PLUG_IN_PROCEDURE (proc);
if (plug_in_proc->menu_label || plug_in_proc->menu_paths)
gimp_menus_delete_item (gimp, plug_in_proc);
}
/* Remove the definition from the global list */
gimp->plug_in_procedures = g_slist_remove (gimp->plug_in_procedures, proc);
/* Unregister the procedural database entry */
gimp_pdb_unregister (gimp, GIMP_OBJECT (proc)->name);
g_object_unref (proc);
}
/* private functions */
static void
plug_ins_add_from_file (const GimpDatafileData *file_data,
gpointer data)
{
PlugInDef *plug_in_def;
GSList **plug_in_defs = data;
GSList *list;
for (list = *plug_in_defs; list; list = list->next)
{
gchar *plug_in_name;
plug_in_def = list->data;
plug_in_name = g_path_get_basename (plug_in_def->prog);
if (g_ascii_strcasecmp (file_data->basename, plug_in_name) == 0)
{
g_printerr ("skipping duplicate plug-in: '%s'\n",
gimp_filename_to_utf8 (file_data->filename));
g_free (plug_in_name);
return;
}
g_free (plug_in_name);
}
plug_in_def = plug_in_def_new (file_data->filename);
plug_in_def_set_mtime (plug_in_def, file_data->mtime);
plug_in_def_set_needs_query (plug_in_def, TRUE);
*plug_in_defs = g_slist_prepend (*plug_in_defs, plug_in_def);
}
static void
plug_ins_add_from_rc (Gimp *gimp,
PlugInDef *plug_in_def)
{
GSList *list;
gchar *basename1;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (plug_in_def != NULL);
g_return_if_fail (plug_in_def->prog != NULL);
if (! g_path_is_absolute (plug_in_def->prog))
{
g_warning ("plug_ins_def_add_from_rc: filename not absolute (skipping)");
plug_in_def_free (plug_in_def);
return;
}
basename1 = g_path_get_basename (plug_in_def->prog);
/* If this is a file load or save plugin, make sure we have
* something for one of the extensions, prefixes, or magic number.
* Other bits of code rely on detecting file plugins by the presence
* of one of these things, but Nick Lamb's alien/unknown format
* loader needs to be able to register no extensions, prefixes or
* magics. -- austin 13/Feb/99
*/
for (list = plug_in_def->procedures; list; list = list->next)
{
GimpPlugInProcedure *proc = list->data;
if (! proc->extensions &&
! proc->prefixes &&
! proc->magics &&
proc->menu_paths &&
(! strncmp (proc->menu_paths->data, "<Load>", 6) ||
! strncmp (proc->menu_paths->data, "<Save>", 6)))
{
proc->extensions = g_strdup ("");
}
}
/* Check if the entry mentioned in pluginrc matches an executable
* found in the plug_in_path.
*/
for (list = gimp->plug_in_defs; list; list = list->next)
{
PlugInDef *ondisk_plug_in_def = list->data;
gchar *basename2;
basename2 = g_path_get_basename (ondisk_plug_in_def->prog);
if (! strcmp (basename1, basename2))
{
if (! g_ascii_strcasecmp (plug_in_def->prog,
ondisk_plug_in_def->prog) &&
(plug_in_def->mtime == ondisk_plug_in_def->mtime))
{
/* Use pluginrc entry, deleting ondisk entry */
list->data = plug_in_def;
plug_in_def_free (ondisk_plug_in_def);
}
else
{
/* Use ondisk entry, deleting pluginrc entry */
plug_in_def_free (plug_in_def);
}
g_free (basename2);
g_free (basename1);
return;
}
g_free (basename2);
}
g_free (basename1);
gimp->write_pluginrc = TRUE;
g_printerr ("executable not found: '%s'\n",
gimp_filename_to_utf8 (plug_in_def->prog));
plug_in_def_free (plug_in_def);
}
static void
plug_ins_add_to_db (Gimp *gimp,
GimpContext *context)
{
GSList *list;
for (list = gimp->plug_in_procedures; list; list = list->next)
{
GimpPlugInProcedure *proc = list->data;
gimp_pdb_register (gimp, GIMP_PROCEDURE (proc));
if (proc->file_proc)
{
GValueArray *return_vals;
if (proc->image_types)
{
return_vals =
gimp_pdb_run_proc (gimp, context, NULL,
"gimp-register-save-handler",
G_TYPE_STRING, GIMP_OBJECT (proc)->name,
G_TYPE_STRING, proc->extensions,
G_TYPE_STRING, proc->prefixes,
G_TYPE_NONE);
}
else
{
return_vals =
gimp_pdb_run_proc (gimp, context, NULL,
"gimp-register-magic-load-handler",
G_TYPE_STRING, GIMP_OBJECT (proc)->name,
G_TYPE_STRING, proc->extensions,
G_TYPE_STRING, proc->prefixes,
G_TYPE_STRING, proc->magics,
G_TYPE_NONE);
}
g_value_array_free (return_vals);
}
}
}
static gint
plug_ins_file_proc_compare (gconstpointer a,
gconstpointer b,
gpointer data)
{
Gimp *gimp = data;
const GimpPlugInProcedure *proc_a = a;
const GimpPlugInProcedure *proc_b = b;
const gchar *domain_a;
const gchar *domain_b;
gchar *label_a;
gchar *label_b;
gint retval = 0;
if (strncmp (proc_a->prog, "gimp-xcf", 8) == 0)
return -1;
if (strncmp (proc_b->prog, "gimp-xcf", 8) == 0)
return 1;
domain_a = plug_in_locale_domain (gimp, proc_a->prog, NULL);
domain_b = plug_in_locale_domain (gimp, proc_b->prog, NULL);
label_a = gimp_plug_in_procedure_get_label (proc_a, domain_a);
label_b = gimp_plug_in_procedure_get_label (proc_b, domain_b);
if (label_a && label_b)
retval = g_utf8_collate (label_a, label_b);
g_free (label_a);
g_free (label_b);
return retval;
}
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