1 files changed, 343 insertions, 0 deletions
diff --git a/pluma/pluma-object-module.c b/pluma/pluma-object-module.c
new file mode 100755
index 00000000..3265de2c
--- /dev/null
+++ b/pluma/pluma-object-module.c
@@ -0,0 +1,343 @@
+/*
+ * pluma-object-module.c
+ * This file is part of pluma
+ *
+ * Copyright (C) 2005 - Paolo Maggi
+ * Copyright (C) 2008 - Jesse van den Kieboom
+ *
+ * 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. 
+ */
+ 
+/* This is a modified version of ephy-module.c from Epiphany source code.
+ * Here the original copyright assignment:
+ *
+ * Copyright (C) 2003 Marco Pesenti Gritti
+ * Copyright (C) 2003, 2004 Christian Persch
+ *
+ */
+
+/*
+ * Modified by the pluma Team, 2005. See the AUTHORS file for a 
+ * list of people on the pluma Team. 
+ * See the ChangeLog files for a list of changes. 
+ *
+ * $Id: pluma-module.c 6314 2008-06-05 12:57:53Z pborelli $
+ */
+
+#include "config.h"
+
+#include "pluma-object-module.h"
+#include "pluma-debug.h"
+
+typedef GType (*PlumaObjectModuleRegisterFunc) (GTypeModule *);
+
+enum {
+ PROP_0,
+ PROP_MODULE_NAME,
+ PROP_PATH,
+ PROP_TYPE_REGISTRATION,
+ PROP_RESIDENT
+};
+
+struct _PlumaObjectModulePrivate
+{
+ GModule *library;
+
+ GType type;
+ gchar *path;
+ gchar *module_name;
+ gchar *type_registration;
+
+ gboolean resident;
+};
+
+G_DEFINE_TYPE (PlumaObjectModule, pluma_object_module, G_TYPE_TYPE_MODULE);
+
+static gboolean
+pluma_object_module_load (GTypeModule *gmodule)
+{
+ PlumaObjectModule *module = PLUMA_OBJECT_MODULE (gmodule);
+ PlumaObjectModuleRegisterFunc register_func;
+ gchar *path;
+
+ pluma_debug_message (DEBUG_PLUGINS, "Loading %s module from %s",
+ module->priv->module_name, module->priv->path);
+
+ path = g_module_build_path (module->priv->path, module->priv->module_name);
+ g_return_val_if_fail (path != NULL, FALSE);
+ pluma_debug_message (DEBUG_PLUGINS, "Module filename: %s", path);
+
+ module->priv->library = g_module_open (path, 
+ G_MODULE_BIND_LAZY);
+ g_free (path);
+
+ if (module->priv->library == NULL)
+ {
+ g_warning ("%s: %s", module->priv->module_name, g_module_error());
+
+ return FALSE;
+ }
+
+ /* extract symbols from the lib */
+ if (!g_module_symbol (module->priv->library, module->priv->type_registration,
+ (void *) &register_func))
+ {
+ g_warning ("%s: %s", module->priv->module_name, g_module_error());
+ g_module_close (module->priv->library);
+
+ return FALSE;
+ }
+
+ /* symbol can still be NULL even though g_module_symbol
+ * returned TRUE */
+ if (register_func == NULL)
+ {
+ g_warning ("Symbol '%s' should not be NULL", module->priv->type_registration);
+ g_module_close (module->priv->library);
+
+ return FALSE;
+ }
+
+ module->priv->type = register_func (gmodule);
+
+ if (module->priv->type == 0)
+ {
+ g_warning ("Invalid object contained by module %s", module->priv->module_name);
+ return FALSE;
+ }
+
+ if (module->priv->resident)
+ {
+ g_module_make_resident (module->priv->library);
+ }
+
+ return TRUE;
+}
+
+static void
+pluma_object_module_unload (GTypeModule *gmodule)
+{
+ PlumaObjectModule *module = PLUMA_OBJECT_MODULE (gmodule);
+
+ pluma_debug_message (DEBUG_PLUGINS, "Unloading %s", module->priv->path);
+
+ g_module_close (module->priv->library);
+
+ module->priv->library = NULL;
+ module->priv->type = 0;
+}
+
+static void
+pluma_object_module_init (PlumaObjectModule *module)
+{
+ pluma_debug_message (DEBUG_PLUGINS, "PlumaObjectModule %p initialising", module);
+ 
+ module->priv = G_TYPE_INSTANCE_GET_PRIVATE (module,
+ PLUMA_TYPE_OBJECT_MODULE,
+ PlumaObjectModulePrivate);
+}
+
+static void
+pluma_object_module_finalize (GObject *object)
+{
+ PlumaObjectModule *module = PLUMA_OBJECT_MODULE (object);
+
+ pluma_debug_message (DEBUG_PLUGINS, "PlumaObjectModule %p finalising", module);
+
+ g_free (module->priv->path);
+ g_free (module->priv->module_name);
+ g_free (module->priv->type_registration);
+
+ G_OBJECT_CLASS (pluma_object_module_parent_class)->finalize (object);
+}
+
+static void
+pluma_object_module_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ PlumaObjectModule *module = PLUMA_OBJECT_MODULE (object);
+
+ switch (prop_id)
+ {
+ case PROP_MODULE_NAME:
+ g_value_set_string (value, module->priv->module_name);
+ break;
+ case PROP_PATH:
+ g_value_set_string (value, module->priv->path);
+ break;
+ case PROP_TYPE_REGISTRATION:
+ g_value_set_string (value, module->priv->type_registration);
+ break;
+ case PROP_RESIDENT:
+ g_value_set_boolean (value, module->priv->resident);
+ break;
+ default:
+ g_return_if_reached ();
+ }
+}
+
+static void
+pluma_object_module_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ PlumaObjectModule *module = PLUMA_OBJECT_MODULE (object);
+
+ switch (prop_id)
+ {
+ case PROP_MODULE_NAME:
+ module->priv->module_name = g_value_dup_string (value);
+ g_type_module_set_name (G_TYPE_MODULE (object),
+ module->priv->module_name);
+ break;
+ case PROP_PATH:
+ module->priv->path = g_value_dup_string (value);
+ break;
+ case PROP_TYPE_REGISTRATION:
+ module->priv->type_registration = g_value_dup_string (value);
+ break;
+ case PROP_RESIDENT:
+ module->priv->resident = g_value_get_boolean (value);
+ break;
+ default:
+ g_return_if_reached ();
+ }
+}
+
+static void
+pluma_object_module_class_init (PlumaObjectModuleClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GTypeModuleClass *module_class = G_TYPE_MODULE_CLASS (klass);
+
+ object_class->set_property = pluma_object_module_set_property;
+ object_class->get_property = pluma_object_module_get_property;
+ object_class->finalize = pluma_object_module_finalize;
+
+ module_class->load = pluma_object_module_load;
+ module_class->unload = pluma_object_module_unload;
+
+ g_object_class_install_property (object_class,
+ PROP_MODULE_NAME,
+ g_param_spec_string ("module-name",
+ "Module Name",
+ "The module to load for this object",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class,
+ PROP_PATH,
+ g_param_spec_string ("path",
+ "Path",
+ "The path to use when loading this module",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+ 
+ g_object_class_install_property (object_class,
+ PROP_TYPE_REGISTRATION,
+ g_param_spec_string ("type-registration",
+ "Type Registration",
+ "The name of the type registration function",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class,
+ PROP_RESIDENT,
+ g_param_spec_boolean ("resident",
+ "Resident",
+ "Whether the module is resident",
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_type_class_add_private (klass, sizeof (PlumaObjectModulePrivate));
+}
+
+PlumaObjectModule *
+pluma_object_module_new (const gchar *module_name,
+ const gchar *path,
+ const gchar *type_registration,
+ gboolean resident)
+{
+ return (PlumaObjectModule *)g_object_new (PLUMA_TYPE_OBJECT_MODULE,
+ "module-name",
+ module_name,
+ "path",
+ path,
+ "type-registration",
+ type_registration,
+ "resident",
+ resident,
+ NULL);
+}
+
+GObject *
+pluma_object_module_new_object (PlumaObjectModule *module,
+ const gchar *first_property_name,
+ ...)
+{
+ va_list var_args;
+ GObject *result;
+ 
+ g_return_val_if_fail (module->priv->type != 0, NULL);
+
+ pluma_debug_message (DEBUG_PLUGINS, "Creating object of type %s",
+ g_type_name (module->priv->type));
+
+ va_start (var_args, first_property_name);
+ result = g_object_new_valist (module->priv->type, first_property_name, var_args);
+ va_end (var_args);
+ 
+ return result;
+}
+
+const gchar *
+pluma_object_module_get_path (PlumaObjectModule *module)
+{
+ g_return_val_if_fail (PLUMA_IS_OBJECT_MODULE (module), NULL);
+
+ return module->priv->path;
+}
+
+const gchar *
+pluma_object_module_get_module_name (PlumaObjectModule *module)
+{
+ g_return_val_if_fail (PLUMA_IS_OBJECT_MODULE (module), NULL);
+
+ return module->priv->module_name;
+}
+
+const gchar *
+pluma_object_module_get_type_registration (PlumaObjectModule *module)
+{
+ g_return_val_if_fail (PLUMA_IS_OBJECT_MODULE (module), NULL);
+
+ return module->priv->type_registration;
+}
+
+GType
+pluma_object_module_get_object_type (PlumaObjectModule *module)
+{
+ g_return_val_if_fail (PLUMA_IS_OBJECT_MODULE (module), 0);
+ 
+ return module->priv->type;
+}