plugins: setup new helper macros to define plugins

We also remove the plugin headers completely as they are not really
required anywhere.

1 files changed, 58 insertions, 0 deletions

diff --git a/src/plugins/mm-plugin-common.h b/src/plugins/mm-plugin-common.h
new file mode 100644
index 00000000..607d24db
--- /dev/null
+++ b/src/plugins/mm-plugin-common.h
@@ -0,0 +1,58 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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:
+ *
+ * Copyright (C) 2022 Google, Inc.
+ */
+
+#ifndef MM_PLUGIN_COMMON_H
+#define MM_PLUGIN_COMMON_H
+
+#if !defined MM_MODULE_NAME
+# error MM_MODULE_NAME must be defined
+#endif
+
+#include <config.h>
+#include <glib.h>
+#include <glib-object.h>
+
+#include "mm-plugin.h"
+
+#define MM_PLUGIN_NAMED_CREATOR_SCOPE static
+
+#define MM_PLUGIN_CREATOR(my_plugin)                   \
+    G_MODULE_EXPORT MMPlugin *mm_plugin_create (void); \
+    G_MODULE_EXPORT MMPlugin *                         \
+    mm_plugin_create (void)                            \
+    {                                                  \
+        return mm_plugin_create_##my_plugin ();        \
+    }
+
+#if defined (G_HAVE_GNUC_VISIBILITY)
+# define MM_VISIBILITY __attribute__((visibility("protected")))
+#else
+# define MM_VISIBILITY
+#endif
+
+#define MM_DEFINE_PLUGIN(MY_PLUGIN, my_plugin, MyPlugin)                                              \
+    G_DECLARE_FINAL_TYPE(MMPlugin##MyPlugin, mm_plugin_##my_plugin, MM, PLUGIN_##MY_PLUGIN, MMPlugin) \
+    struct _MMPlugin##MyPlugin {                                                                      \
+        MMPlugin parent;                                                                              \
+    };                                                                                                \
+    G_DEFINE_TYPE (MMPlugin##MyPlugin, mm_plugin_##my_plugin, MM_TYPE_PLUGIN)                         \
+                                                                                                      \
+    MM_VISIBILITY int mm_plugin_major_version = MM_PLUGIN_MAJOR_VERSION;                              \
+    MM_VISIBILITY int mm_plugin_minor_version = MM_PLUGIN_MINOR_VERSION;                              \
+                                                                                                      \
+    MM_PLUGIN_NAMED_CREATOR_SCOPE MMPlugin *mm_plugin_create_##my_plugin (void);                      \
+    MM_PLUGIN_CREATOR(my_plugin)
+
+#endif /* MM_PLUGIN_COMMON_H */