Simplify EPlugin loading at startup.

- Require all EPlugin and EPluginHook subtypes be registered before
  loading plugins.  This drastically simplifies the EPlugin/EPluginHook
  negotiation.

- Turn most EPluginHook subtypes into GTypeModules and register their
  types from an e_module_load() function (does not include shell hooks).

- Convert EPluginLib and the Mono and Python bindings to GTypeModules
  and register their types from an e_module_load() function, and kill
  EPluginTypeHook.

1 files changed, 92 insertions, 0 deletions

diff --git a/modules/plugin-lib/e-plugin-lib.h b/modules/plugin-lib/e-plugin-lib.h
new file mode 100644
index 0000000000..b485d9625e
--- /dev/null
+++ b/modules/plugin-lib/e-plugin-lib.h
@@ -0,0 +1,92 @@
+/*
+ * e-plugin-lib.h
+ *
+ * This program 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 of the License, or (at your option) version 3.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifndef E_PLUGIN_LIB_H
+#define E_PLUGIN_LIB_H
+
+#include <gmodule.h>
+#include <e-util/e-plugin.h>
+
+/* Standard GObject macros */
+#define E_TYPE_PLUGIN_LIB \
+	(e_plugin_lib_get_type ())
+#define E_PLUGIN_LIB(obj) \
+	(G_TYPE_CHECK_INSTANCE_CAST \
+	((obj), E_TYPE_PLUGIN_LIB, EPluginLib))
+#define E_PLUGIN_LIB_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_CAST \
+	((cls), E_TYPE_PLUGIN_LIB, EPluginLibClass))
+#define E_IS_PLUGIN_LIB(obj) \
+	(G_TYPE_CHECK_INSTANCE_TYPE \
+	((obj), E_TYPE_PLUGIN_LIB))
+#define E_IS_PLUGIN_LIB_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_TYPE \
+	((cls), E_TYPE_PLUGIN_LIB))
+#define E_PLUGIN_LIB_GET_CLASS(obj) \
+	(G_TYPE_INSTANCE_GET_CLASS \
+	((obj), E_TYPE_PLUGIN_LIB, EPluginLibClass))
+
+G_BEGIN_DECLS
+
+typedef struct _EPluginLib EPluginLib;
+typedef struct _EPluginLibClass EPluginLibClass;
+
+/* The callback signature used for epluginlib methods */
+typedef gpointer (*EPluginLibFunc) (EPluginLib *ep, gpointer data);
+
+/* The setup method, this will be called when the plugin is
+ * initialized.  In the future it may also be called when the plugin
+ * is disabled. */
+typedef gint (*EPluginLibEnableFunc) (EPluginLib *ep, gint enable);
+
+typedef gpointer (*EPluginLibGetConfigureWidgetFunc) (EPluginLib *ep);
+
+/**
+ * struct _EPluginLib -
+ *
+ * @plugin: Superclass.
+ * @location: The filename of the shared object.
+ * @module: The GModule once it is loaded.
+ *
+ * This is a concrete EPlugin class.  It loads and invokes dynamically
+ * loaded libraries using GModule.  The shared object isn't loaded
+ * until the first callback is invoked.
+ *
+ * When the plugin is loaded, and if it exists, "e_plugin_lib_enable"
+ * will be invoked to initialize the plugin.
+ **/
+struct _EPluginLib {
+	EPlugin parent;
+
+	gchar *location;
+	GModule *module;
+};
+
+struct _EPluginLibClass {
+	EPluginClass parent_class;
+};
+
+GType		e_plugin_lib_get_type		(void);
+void		e_plugin_lib_register_type	(GTypeModule *type_module);
+
+G_END_DECLS
+
+#endif /* E_PLUGIN_LIB_H */