[libpeas/proxys: 16/25] [PeasObjectModule] Introduce peas_object_module_register_extension.
- From: Steve Frécinaux <sfre src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [libpeas/proxys: 16/25] [PeasObjectModule] Introduce peas_object_module_register_extension.
- Date: Sun, 23 May 2010 14:00:37 +0000 (UTC)
commit 8dcea1a08897fff34e725d687139fd1ab8b70710
Author: Steve Frécinaux <code istique net>
Date: Wed May 19 19:54:45 2010 +0200
[PeasObjectModule] Introduce peas_object_module_register_extension.
This function allows a plugin to register an extension and a callback
to create the related object. This function is meant to be called from
peas_register_types().
libpeas/peas-engine.c | 3 +-
libpeas/peas-object-module.c | 76 ++++++++++++++++++--
libpeas/peas-object-module.h | 13 +++-
loaders/c/peas-plugin-loader-c.c | 70 +++++++-----------
loaders/c/peas-plugin-loader-c.h | 3 +-
.../helloworld/peasdemo-hello-world-plugin.c | 30 ++++----
.../helloworld/peasdemo-hello-world-plugin.h | 5 +-
7 files changed, 130 insertions(+), 70 deletions(-)
---
diff --git a/libpeas/peas-engine.c b/libpeas/peas-engine.c
index d88b2ab..12a8735 100644
--- a/libpeas/peas-engine.c
+++ b/libpeas/peas-engine.c
@@ -527,7 +527,8 @@ load_plugin_loader (PeasEngine *engine,
/* make sure to load the type definition */
if (g_type_module_use (G_TYPE_MODULE (module)))
{
- loader = (PeasPluginLoader *) peas_object_module_new_object (module);
+ peas_object_module_register_types (module);
+ loader = (PeasPluginLoader *) peas_object_module_create_object (module, PEAS_TYPE_PLUGIN_LOADER);
if (loader == NULL || !PEAS_IS_PLUGIN_LOADER (loader))
{
diff --git a/libpeas/peas-object-module.c b/libpeas/peas-object-module.c
index 7ebaf09..42b9755 100644
--- a/libpeas/peas-object-module.c
+++ b/libpeas/peas-object-module.c
@@ -30,7 +30,7 @@
G_DEFINE_TYPE (PeasObjectModule, peas_object_module, G_TYPE_TYPE_MODULE);
-typedef GObject *(*PeasObjectModuleRegisterFunc) (GTypeModule *);
+typedef void (*PeasObjectModuleRegisterFunc) (PeasObjectModule *);
enum {
PROP_0,
@@ -39,15 +39,23 @@ enum {
PROP_RESIDENT
};
+typedef struct {
+ GType iface_type;
+ PeasCreateFunc func;
+ gconstpointer user_data;
+} InterfaceImplementation;
+
struct _PeasObjectModulePrivate {
GModule *library;
PeasObjectModuleRegisterFunc register_func;
+ GArray *implementations;
gchar *path;
gchar *module_name;
- gboolean resident;
+ gboolean types_registered : 1;
+ gboolean resident : 1;
};
static gboolean
@@ -121,6 +129,8 @@ peas_object_module_init (PeasObjectModule *module)
module->priv = G_TYPE_INSTANCE_GET_PRIVATE (module,
PEAS_TYPE_OBJECT_MODULE,
PeasObjectModulePrivate);
+
+ module->priv->implementations = g_array_new (FALSE, FALSE, sizeof (InterfaceImplementation));
}
static void
@@ -130,6 +140,7 @@ peas_object_module_finalize (GObject *object)
g_free (module->priv->path);
g_free (module->priv->module_name);
+ g_array_free (module->priv->implementations, TRUE);
G_OBJECT_CLASS (peas_object_module_parent_class)->finalize (object);
}
@@ -239,12 +250,55 @@ peas_object_module_new (const gchar *module_name,
NULL);
}
+void
+peas_object_module_register_types (PeasObjectModule *module)
+{
+ g_return_if_fail (PEAS_IS_OBJECT_MODULE (module));
+ g_return_if_fail (module->priv->register_func != NULL);
+ g_return_if_fail (module->priv->types_registered == FALSE);
+
+ module->priv->register_func (module);
+ module->priv->types_registered = TRUE;
+}
+
GObject *
-peas_object_module_new_object (PeasObjectModule *module)
+peas_object_module_create_object (PeasObjectModule *module,
+ GType interface)
{
- g_return_val_if_fail (module->priv->register_func != NULL, NULL);
+ guint i;
+ InterfaceImplementation *impls;
- return module->priv->register_func (G_TYPE_MODULE (module));
+ g_return_val_if_fail (PEAS_IS_OBJECT_MODULE (module), NULL);
+
+ if (!module->priv->types_registered)
+ peas_object_module_register_types (module);
+
+ impls = (InterfaceImplementation *) module->priv->implementations->data;
+ for (i = 0; i < module->priv->implementations->len; ++i)
+ if (impls[i].iface_type == interface)
+ return impls[i].func (impls[i].user_data);
+
+ return NULL;
+}
+
+gboolean
+peas_object_module_provides_object (PeasObjectModule *module,
+ GType interface)
+{
+ guint i;
+ InterfaceImplementation *impls;
+
+ g_return_val_if_fail (PEAS_IS_OBJECT_MODULE (module), FALSE);
+
+ if (!module->priv->types_registered)
+ peas_object_module_register_types (module);
+
+ impls = (InterfaceImplementation *) module->priv->implementations->data;
+ for (i = 0; i < module->priv->implementations->len; ++i)
+ if (impls[i].iface_type == interface)
+ return TRUE;
+
+ return FALSE;
}
const gchar *
@@ -270,3 +324,15 @@ peas_object_module_get_library (PeasObjectModule *module)
return module->priv->library;
}
+
+void
+peas_object_module_register_extension (PeasObjectModule *module,
+ GType iface_type,
+ PeasCreateFunc func,
+ gconstpointer user_data)
+{
+ InterfaceImplementation impl = { iface_type, func, user_data };
+ g_array_append_val (module->priv->implementations, impl);
+
+ g_debug ("Registered extension for type '%s'", g_type_name (iface_type));
+}
diff --git a/libpeas/peas-object-module.h b/libpeas/peas-object-module.h
index a68d6ab..7a14deb 100644
--- a/libpeas/peas-object-module.h
+++ b/libpeas/peas-object-module.h
@@ -41,6 +41,8 @@ typedef struct _PeasObjectModule PeasObjectModule;
typedef struct _PeasObjectModuleClass PeasObjectModuleClass;
typedef struct _PeasObjectModulePrivate PeasObjectModulePrivate;
+typedef GObject *(*PeasCreateFunc) (gconstpointer user_data);
+
struct _PeasObjectModule {
GTypeModule parent;
@@ -59,13 +61,22 @@ PeasObjectModule *peas_object_module_new (const gchar
const gchar *path,
gboolean resident);
-GObject *peas_object_module_new_object (PeasObjectModule *module);
+void peas_object_module_register_types (PeasObjectModule *module);
+GObject *peas_object_module_create_object (PeasObjectModule *module,
+ GType interface);
+gboolean peas_object_module_provides_object (PeasObjectModule *module,
+ GType interface);
const gchar *peas_object_module_get_path (PeasObjectModule *module);
const gchar *peas_object_module_get_module_name (PeasObjectModule *module);
GModule *peas_object_module_get_library (PeasObjectModule *module);
+void peas_object_module_register_extension (PeasObjectModule *module,
+ GType iface_type,
+ PeasCreateFunc func,
+ gconstpointer user_data);
+
G_END_DECLS
#endif /* __PEAS_OBJECT_MODULE_H__ */
diff --git a/loaders/c/peas-plugin-loader-c.c b/loaders/c/peas-plugin-loader-c.c
index ad4a75a..51b5889 100644
--- a/loaders/c/peas-plugin-loader-c.c
+++ b/loaders/c/peas-plugin-loader-c.c
@@ -24,8 +24,6 @@
#include <libpeas/peas-object-module.h>
#include <gmodule.h>
-typedef gpointer (* CreateFunc) (void);
-
struct _PeasPluginLoaderCPrivate
{
GHashTable *loaded_plugins;
@@ -33,12 +31,22 @@ struct _PeasPluginLoaderCPrivate
G_DEFINE_DYNAMIC_TYPE (PeasPluginLoaderC, peas_plugin_loader_c, PEAS_TYPE_PLUGIN_LOADER);
-G_MODULE_EXPORT GObject *
-peas_register_types (GTypeModule *type_module)
+static GObject *
+create_object (GType the_type)
+{
+ return g_object_new (the_type, NULL);
+}
+
+G_MODULE_EXPORT void
+peas_register_types (PeasObjectModule *module)
{
- peas_plugin_loader_c_register_type (type_module);
- peas_extension_c_register (type_module);
- return g_object_new (PEAS_TYPE_PLUGIN_LOADER_C, NULL);
+ peas_plugin_loader_c_register_type (G_TYPE_MODULE (module));
+ peas_extension_c_register (G_TYPE_MODULE (module));
+
+ peas_object_module_register_extension (module,
+ PEAS_TYPE_PLUGIN_LOADER,
+ (PeasCreateFunc) create_object,
+ GSIZE_TO_POINTER (PEAS_TYPE_PLUGIN_LOADER_C));
}
static void
@@ -82,48 +90,24 @@ peas_plugin_loader_c_load (PeasPluginLoader * loader,
return FALSE;
}
- {
- /* FIXME: This weird hack is currently necessary but ought to be removed. */
- PeasPlugin *result = (PeasPlugin *) peas_object_module_new_object (module);
- g_object_unref (result);
- }
+ peas_object_module_register_types (module);
return TRUE;
}
-static CreateFunc
-get_create_function (PeasPluginLoaderC *cloader,
- PeasPluginInfo *info,
- GType exten_type)
-{
- PeasObjectModule *module;
- gchar *symbol_name;
- gpointer symbol;
- gboolean ret;
-
- module = (PeasObjectModule *) g_hash_table_lookup (cloader->priv->loaded_plugins,
- info);
-
- g_return_val_if_fail (module != NULL, NULL);
-
- symbol_name = g_strdup_printf ("create_%s", g_type_name (exten_type));
- g_debug ("Resolving symbol %s", symbol_name);
- ret = g_module_symbol (peas_object_module_get_library (module), symbol_name, &symbol);
- g_free (symbol_name);
-
- if (!ret)
- return NULL;
- return (CreateFunc) symbol;
-}
-
static gboolean
peas_plugin_loader_c_provides_extension (PeasPluginLoader *loader,
PeasPluginInfo *info,
GType exten_type)
{
PeasPluginLoaderC *cloader = PEAS_PLUGIN_LOADER_C (loader);
+ PeasObjectModule *module;
+
+ module = (PeasObjectModule *) g_hash_table_lookup (cloader->priv->loaded_plugins,
+ info);
+ g_return_val_if_fail (module != NULL, FALSE);
- return get_create_function (cloader, info, exten_type) != NULL;
+ return peas_object_module_provides_object (module, exten_type);
}
static PeasExtension *
@@ -132,14 +116,14 @@ peas_plugin_loader_c_get_extension (PeasPluginLoader *loader,
GType exten_type)
{
PeasPluginLoaderC *cloader = PEAS_PLUGIN_LOADER_C (loader);
- CreateFunc create_func;
+ PeasObjectModule *module;
gpointer instance;
- create_func = get_create_function (cloader, info, exten_type);
- if (!create_func)
- return NULL;
+ module = (PeasObjectModule *) g_hash_table_lookup (cloader->priv->loaded_plugins,
+ info);
+ g_return_val_if_fail (module != NULL, NULL);
- instance = create_func ();
+ instance = peas_object_module_create_object (module, exten_type);
g_return_val_if_fail (instance != NULL, NULL);
g_return_val_if_fail (G_IS_OBJECT (instance), NULL);
diff --git a/loaders/c/peas-plugin-loader-c.h b/loaders/c/peas-plugin-loader-c.h
index 4c22500..ae188f0 100644
--- a/loaders/c/peas-plugin-loader-c.h
+++ b/loaders/c/peas-plugin-loader-c.h
@@ -23,6 +23,7 @@
#define __PEAS_PLUGIN_LOADER_C_H__
#include <libpeas/peas-plugin-loader.h>
+#include <libpeas/peas-object-module.h>
G_BEGIN_DECLS
@@ -50,7 +51,7 @@ struct _PeasPluginLoaderCClass {
GType peas_plugin_loader_c_get_type (void) G_GNUC_CONST;
/* All the loaders must implement this function */
-G_MODULE_EXPORT GObject *peas_register_types (GTypeModule *module);
+G_MODULE_EXPORT void peas_register_types (PeasObjectModule *module);
G_END_DECLS
diff --git a/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.c b/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.c
index eca2f91..940daf8 100644
--- a/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.c
+++ b/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.c
@@ -157,25 +157,23 @@ peasdemo_hello_world_plugin_class_finalize (PeasDemoHelloWorldPluginClass *klass
{
}
-G_MODULE_EXPORT GObject *
-peas_register_types (GTypeModule *type_module)
+GObject *
+create_plugin (void)
{
- peasdemo_hello_world_plugin_register_type (type_module);
-
- return g_object_new (PEASDEMO_TYPE_HELLO_WORLD_PLUGIN,
- NULL);
-}
-
-G_MODULE_EXPORT GObject *
-create_PeasActivatable ()
-{
- g_debug ("%s called", G_STRFUNC);
return g_object_new (PEASDEMO_TYPE_HELLO_WORLD_PLUGIN, NULL);
}
-G_MODULE_EXPORT GObject *
-create_PeasUIConfigurable ()
+G_MODULE_EXPORT void
+peas_register_types (PeasObjectModule *module)
{
- g_debug ("%s called", G_STRFUNC);
- return g_object_new (PEASDEMO_TYPE_HELLO_WORLD_PLUGIN, NULL);
+ peasdemo_hello_world_plugin_register_type (G_TYPE_MODULE (module));
+
+ peas_object_module_register_extension (module,
+ PEAS_TYPE_ACTIVATABLE,
+ (PeasCreateFunc) create_plugin,
+ NULL);
+ peas_object_module_register_extension (module,
+ PEAS_UI_TYPE_CONFIGURABLE,
+ (PeasCreateFunc) create_plugin,
+ NULL);
}
diff --git a/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.h b/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.h
index 534dcf9..551664e 100644
--- a/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.h
+++ b/peas-demo/plugins/helloworld/peasdemo-hello-world-plugin.h
@@ -5,6 +5,7 @@
#include <glib-object.h>
#include <libpeas/peas-plugin.h>
#include <libpeas/peas-plugin-info.h>
+#include <libpeas/peas-object-module.h>
G_BEGIN_DECLS
@@ -27,9 +28,7 @@ struct _PeasDemoHelloWorldPluginClass {
};
GType peasdemo_hello_world_plugin_get_type (void) G_GNUC_CONST;
-G_MODULE_EXPORT GObject *peas_register_types (GTypeModule *module);
-G_MODULE_EXPORT GObject *create_PeasUIConfigurable ();
-G_MODULE_EXPORT GObject *create_PeasActivatable ();
+G_MODULE_EXPORT void peas_register_types (PeasObjectModule *module);
G_END_DECLS
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