New extensions API.

2003-11-10  Christian Persch  <chpe@cvs.gnome.org>

	New extensions API.

	* Makefile.am:
	* configure.in:
	* lib/Makefile.am:
	* lib/ephy-module-loader.c: (ephy_module_loader_get_type),
	(ephy_module_loader_new), (ephy_module_loader_load),
	(ephy_module_loader_unload), (ephy_module_loader_class_init),
	(ephy_module_loader_init), (ephy_module_loader_finalize),
	(ephy_module_loader_factory):
	* lib/ephy-module-loader.h:
	* plugins/.cvsignore:
	* plugins/Makefile.am:
	* plugins/sample/.cvsignore:
	* plugins/sample/Makefile.am:
	* plugins/sample/sample.c:
	* src/Makefile.am:
	* src/bookmarks/ephy-bookmarks-editor.c: (get_target_window):
	* src/bookmarks/ephy-bookmarks.c:
	* src/ephy-automation.c: (ephy_automation_factory),
	(ephy_automation_factory_new), (impl_ephy_automation_loadurl),
	(impl_ephy_automation_load_session), (ephy_automation_class_init):
	* src/ephy-extension.c: (ephy_extension_get_type),
	(ephy_extension_attach_window), (ephy_extension_detach_window):
	* src/ephy-extension.h:
	* src/ephy-extensions-manager.c:
	(ephy_extensions_manager_get_type),
	(ephy_extensions_manager_instantiate_extension),
	(ephy_extensions_manager_load), (ephy_extensions_manager_load_dir),
	(ephy_extensions_manager_add), (ephy_extensions_manager_init),
	(ephy_extensions_manager_finalize), (impl_attach_window),
	(impl_detach_window), (ephy_extensions_manager_iface_init),
	(ephy_extensions_manager_class_init),
	(ephy_extensions_manager_new):
	* src/ephy-extensions-manager.h:
	* src/ephy-history-window.c: (get_target_window):
	* src/ephy-plugin.c:
	* src/ephy-plugin.h:
	* src/ephy-session.c: (ephy_session_get_type),
	(get_session_filename), (session_delete), (net_stop_cb),
	(tab_added_cb), (tab_removed_cb), (tabs_reordered_cb),
	(impl_attach_window), (impl_detach_window), (save_yourself_cb),
	(die_cb), (gnome_session_attach), (gnome_session_detach),
	(ensure_session_directory), (ephy_session_init),
	(ephy_session_dispose), (ephy_session_finalize),
	(ephy_session_iface_init), (ephy_session_class_init),
	(offer_to_resume), (ephy_session_autoresume), (ephy_session_close),
	(write_tab), (write_window_geometry), (write_tool_window),
	(write_ephy_window), (ephy_session_save), (parse_embed),
	(ephy_session_load), (ephy_session_get_windows),
	(ephy_session_add_window), (ephy_session_remove_window),
	(ephy_session_get_active_window):
	* src/ephy-session.h:
	* src/ephy-shell.c: (ephy_shell_init), (ephy_shell_finalize),
	(ephy_shell_get_session), (ephy_shell_get_extensions_manager),
	(toolwindow_show_cb), (toolwindow_hide_cb):
	* src/ephy-shell.h:
	* src/ephy-window.c: (ephy_window_destroy), (ephy_window_init):
	* src/prefs-dialog.c: (prefs_homepage_current_button_clicked_cb):
	* src/session.c:
	* src/session.h:

	Create a new extensions API. Make session an internal extension :)
	Port callers to session API changes.

1 files changed, 260 insertions, 0 deletions

diff --git a/src/ephy-extensions-manager.c b/src/ephy-extensions-manager.c
new file mode 100644
index 000000000..d7d44d521
--- /dev/null
+++ b/src/ephy-extensions-manager.c
@@ -0,0 +1,260 @@
+/*
+ *  Copyright (C) 2003 Marco Pesenti Gritti
+ *  Copyright (C) 2003 Christian Persch
+ *
+ *  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, 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.
+ *
+ *  $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "ephy-extensions-manager.h"
+
+#include "ephy-module-loader.h"
+#include "ephy-debug.h"
+
+#include <gmodule.h>
+#include <dirent.h>
+
+#define EPHY_EXTENSIONS_MANAGER_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_EXTENSIONS_MANAGER, EphyExtensionsManagerPrivate))
+
+struct EphyExtensionsManagerPrivate
+{
+	GSList *loaders;
+	GSList *extensions;
+};
+
+static GObjectClass *parent_class = NULL;
+
+static void ephy_extensions_manager_class_init	(EphyExtensionsManagerClass *klass);
+static void ephy_extensions_manager_iface_init	(EphyExtensionClass *iface);
+static void ephy_extensions_manager_init	(EphyExtensionsManager *manager);
+
+GType
+ephy_extensions_manager_get_type (void)
+{
+	static GType type = 0;
+
+	if (type == 0)
+	{
+		static const GTypeInfo our_info =
+		{
+			sizeof (EphyExtensionsManagerClass),
+			NULL, /* base_init */
+			NULL, /* base_finalize */
+			(GClassInitFunc) ephy_extensions_manager_class_init,
+			NULL,
+			NULL, /* class_data */
+			sizeof (EphyExtensionsManager),
+			0, /* n_preallocs */
+			(GInstanceInitFunc) ephy_extensions_manager_init
+		};
+
+		static const GInterfaceInfo extension_info =
+		{
+			(GInterfaceInitFunc) ephy_extensions_manager_iface_init,
+			NULL,
+			NULL
+		};
+
+		type = g_type_register_static (G_TYPE_OBJECT,
+					       "EphyExtensionsManager",
+					       &our_info, 0);
+
+		g_type_add_interface_static (type,
+					     EPHY_TYPE_EXTENSION,
+					     &extension_info);
+	}
+
+	return type;
+}
+
+static EphyExtension *
+ephy_extensions_manager_instantiate_extension (EphyExtensionsManager *manager,
+					       EphyModuleLoader *loader)
+{
+	EphyExtension *extension;
+
+	extension = EPHY_EXTENSION (ephy_module_loader_factory (loader));
+
+	if (EPHY_IS_EXTENSION (extension))
+	{
+		manager->priv->extensions =
+			g_slist_append (manager->priv->extensions, extension);
+
+		return extension;
+	}
+
+	return NULL;
+}
+
+EphyExtension *
+ephy_extensions_manager_load (EphyExtensionsManager *manager,
+			      const char *filename)
+{
+	EphyExtension *extension = NULL;
+
+	if (g_str_has_suffix (filename, G_MODULE_SUFFIX))
+	{
+		EphyModuleLoader *loader;
+
+		loader = ephy_module_loader_new (filename);
+
+		if (loader != NULL)
+		{
+			manager->priv->loaders =
+				g_slist_prepend (manager->priv->loaders, loader);
+
+			extension = ephy_extensions_manager_instantiate_extension
+				(manager, loader);
+
+			g_type_module_unuse (G_TYPE_MODULE (loader));
+		}
+	}
+
+	return extension;
+}
+
+static void
+ephy_extensions_manager_load_dir (EphyExtensionsManager *manager,
+				  const char *path)
+{
+	DIR *d;
+	struct dirent *e;
+
+	d = opendir (path);
+	if (d == NULL)
+	{
+		return;
+	}
+
+	while ((e = readdir (d)) != NULL)
+	{
+		char *filename;
+
+		filename = g_build_filename (path, e->d_name, NULL);
+
+		ephy_extensions_manager_load (manager, filename);
+
+		g_free (filename);
+	}
+	closedir (d);
+}
+
+EphyExtension *
+ephy_extensions_manager_add (EphyExtensionsManager *manager,
+			     GType type)
+{
+	EphyExtension *extension;
+
+	LOG ("adding extensions of type %s", g_type_name (type))
+
+	extension = EPHY_EXTENSION (g_object_new (type, NULL));
+	if (!EPHY_IS_EXTENSION (extension))
+	{
+		g_object_unref (extension);
+
+		return NULL;
+	}
+
+	manager->priv->extensions =
+		g_slist_append (manager->priv->extensions, extension);
+
+	return extension;
+}
+
+static void
+ephy_extensions_manager_init (EphyExtensionsManager *manager)
+{
+	manager->priv = EPHY_EXTENSIONS_MANAGER_GET_PRIVATE (manager);
+
+	LOG ("EphyExtensionsManager initialising")
+
+	manager->priv->loaders = NULL;
+	manager->priv->extensions = NULL;
+
+	ephy_extensions_manager_load_dir (manager, EXTENSIONS_DIR);
+}
+
+static void
+ephy_extensions_manager_finalize (GObject *object)
+{
+	EphyExtensionsManager *manager = EPHY_EXTENSIONS_MANAGER (object);
+
+	LOG ("EphyExtensionsManager finalising")
+
+	g_slist_foreach (manager->priv->extensions, (GFunc) g_object_unref, NULL);
+	g_slist_free (manager->priv->extensions);
+
+	g_slist_free (manager->priv->loaders);
+
+	G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+impl_attach_window (EphyExtension *extension,
+		    EphyWindow *window)
+{
+	EphyExtensionsManager *manager = EPHY_EXTENSIONS_MANAGER (extension);
+
+	LOG ("multiplexing attach_window")
+
+	g_slist_foreach (manager->priv->extensions,
+			 (GFunc) ephy_extension_attach_window, window);
+}
+
+static void
+impl_detach_window (EphyExtension *extension,
+		    EphyWindow *window)
+{
+	EphyExtensionsManager *manager = EPHY_EXTENSIONS_MANAGER (extension);
+
+	LOG ("multiplexing detach_window")
+
+	g_object_ref (window);
+
+	g_slist_foreach (manager->priv->extensions,
+			 (GFunc) ephy_extension_detach_window, window);
+
+	g_object_unref (window);
+}
+
+static void
+ephy_extensions_manager_iface_init (EphyExtensionClass *iface)
+{
+	iface->attach_window = impl_attach_window;
+	iface->detach_window = impl_detach_window;
+}
+
+static void
+ephy_extensions_manager_class_init (EphyExtensionsManagerClass *class)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+	parent_class = (GObjectClass *) g_type_class_peek_parent (class);
+
+	object_class->finalize = ephy_extensions_manager_finalize;
+
+	g_type_class_add_private (object_class, sizeof (EphyExtensionsManagerPrivate));
+}
+
+EphyExtensionsManager *
+ephy_extensions_manager_new (void)
+{
+	return EPHY_EXTENSIONS_MANAGER (g_object_new (EPHY_TYPE_EXTENSIONS_MANAGER, NULL));
+}