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Diffstat (limited to 'src/eom-module.c')
| -rw-r--r-- | src/eom-module.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/eom-module.c b/src/eom-module.c new file mode 100644 index 0000000..79fac47 --- /dev/null +++ b/src/eom-module.c @@ -0,0 +1,167 @@ +/* Eye Of Mate - EOM Module + * + * Copyright (C) 2007 The Free Software Foundation + * + * Author: Lucas Rocha <[email protected]> + * + * Based on gedit code (gedit/gedit-module.c) by: + * - Paolo Maggi <[email protected]> + * - Marco Pesenti Gritti <[email protected]> + * - Christian Persch <[email protected]> + * + * 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "eom-module.h" +#include "eom-debug.h" + +#include <gmodule.h> + +#define EOM_MODULE_GET_PRIVATE(object) \ + (G_TYPE_INSTANCE_GET_PRIVATE ((object), EOM_TYPE_MODULE, EomModulePrivate)) + +G_DEFINE_TYPE (EomModule, eom_module, G_TYPE_TYPE_MODULE); + +typedef GType (*EomModuleRegisterFunc) (GTypeModule *); + +static gboolean +eom_module_load (GTypeModule *gmodule) +{ + EomModule *module = EOM_MODULE (gmodule); + EomModuleRegisterFunc register_func; + + eom_debug_message (DEBUG_PLUGINS, "Loading %s", module->path); + + module->library = g_module_open (module->path, 0); + + if (module->library == NULL) { + g_warning ("%s", g_module_error()); + + return FALSE; + } + + /* Extract symbols from the lib */ + if (!g_module_symbol (module->library, + "register_eom_plugin", + (void *) ®ister_func)) { + g_warning ("%s", g_module_error()); + g_module_close (module->library); + + return FALSE; + } + + /* Symbol can still be NULL even though g_module_symbol + * returned TRUE */ + if (register_func == NULL) { + g_warning ("Symbol 'register_eom_plugin' should not be NULL"); + g_module_close (module->library); + + return FALSE; + } + + module->type = register_func (gmodule); + + if (module->type == 0) { + g_warning ("Invalid eom plugin contained by module %s", module->path); + return FALSE; + } + + return TRUE; +} + +static void +eom_module_unload (GTypeModule *gmodule) +{ + EomModule *module = EOM_MODULE (gmodule); + + eom_debug_message (DEBUG_PLUGINS, "Unloading %s", module->path); + + g_module_close (module->library); + + module->library = NULL; + module->type = 0; +} + +const gchar * +eom_module_get_path (EomModule *module) +{ + g_return_val_if_fail (EOM_IS_MODULE (module), NULL); + + return module->path; +} + +GObject * +eom_module_new_object (EomModule *module) +{ + eom_debug_message (DEBUG_PLUGINS, "Creating object of type %s", g_type_name (module->type)); + + if (module->type == 0) { + return NULL; + } + + return g_object_new (module->type, NULL); +} + +static void +eom_module_init (EomModule *module) +{ + eom_debug_message (DEBUG_PLUGINS, "EomModule %p initialising", module); +} + +static void +eom_module_finalize (GObject *object) +{ + EomModule *module = EOM_MODULE (object); + + eom_debug_message (DEBUG_PLUGINS, "EomModule %p finalising", module); + + g_free (module->path); + + G_OBJECT_CLASS (eom_module_parent_class)->finalize (object); +} + +static void +eom_module_class_init (EomModuleClass *class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (class); + GTypeModuleClass *module_class = G_TYPE_MODULE_CLASS (class); + + object_class->finalize = eom_module_finalize; + + module_class->load = eom_module_load; + module_class->unload = eom_module_unload; +} + +EomModule * +eom_module_new (const gchar *path) +{ + EomModule *module; + + if (path == NULL || path[0] == '\0') { + return NULL; + } + + module = g_object_new (EOM_TYPE_MODULE, NULL); + + g_type_module_set_name (G_TYPE_MODULE (module), path); + + module->path = g_strdup (path); + + return module; +} |