[evolution] Make EImportAssistant extensible.

[Matthew Barnes <mbarnes src gnome org>]

commit 8dcdc60cccf720ca7222ba01f645f491801e9f9e
Author: Matthew Barnes <mbarnes redhat com>
Date:   Fri Jul 30 12:10:01 2010 -0400

    Make EImportAssistant extensible.

 shell/e-shell.c                   |    2 +-
 widgets/misc/e-import-assistant.c |   53 +++++++++++-------------------------
 2 files changed, 17 insertions(+), 38 deletions(-)
---
diff --git a/shell/e-shell.c b/shell/e-shell.c
index c51c5dd..a97bc24 100644
--- a/shell/e-shell.c
+++ b/shell/e-shell.c
@@ -1489,7 +1489,7 @@ unique:  /* Send a message to the other Evolution process. */
 guint
 e_shell_handle_uris (EShell *shell,
                      gchar **uris,
-		     gboolean do_import)
+                     gboolean do_import)
 {
 	UniqueApp *app;
 	UniqueMessageData *data;
diff --git a/widgets/misc/e-import-assistant.c b/widgets/misc/e-import-assistant.c
index 5fbcc0c..93e3579 100644
--- a/widgets/misc/e-import-assistant.c
+++ b/widgets/misc/e-import-assistant.c
@@ -29,8 +29,9 @@
 #include <glib/gi18n.h>
 #include <gdk/gdkkeysyms.h>
 
-#include "e-util/e-import.h"
-#include "e-util/e-util-private.h"
+#include <e-util/e-import.h>
+#include <e-util/e-extensible.h>
+#include <e-util/e-util-private.h>
 
 #define E_IMPORT_ASSISTANT_GET_PRIVATE(obj) \
 	(G_TYPE_INSTANCE_GET_PRIVATE \
@@ -120,9 +121,12 @@ enum {
 	LAST_SIGNAL
 };
 
-static gpointer parent_class;
 static guint signals[LAST_SIGNAL];
 
+G_DEFINE_TYPE_WITH_CODE (
+	EImportAssistant, e_import_assistant, GTK_TYPE_ASSISTANT,
+	G_IMPLEMENT_INTERFACE (E_TYPE_EXTENSIBLE, NULL))
+
 /* Importing functions */
 
 static void
@@ -1106,7 +1110,7 @@ import_assistant_dispose (GObject *object)
 	}
 
 	/* Chain up to parent's dispose() method. */
-	G_OBJECT_CLASS (parent_class)->dispose (object);
+	G_OBJECT_CLASS (e_import_assistant_parent_class)->dispose (object);
 }
 
 static void
@@ -1119,7 +1123,7 @@ import_assistant_finalize (GObject *object)
 	g_slist_free (priv->selection_page.importers);
 
 	/* Chain up to parent's finalize() method. */
-	G_OBJECT_CLASS (parent_class)->finalize (object);
+	G_OBJECT_CLASS (e_import_assistant_parent_class)->finalize (object);
 }
 
 static void
@@ -1157,7 +1161,7 @@ static gboolean
 import_assistant_key_press_event (GtkWidget *widget,
                                   GdkEventKey *event)
 {
-	GtkWidgetClass *widget_class;
+	GtkWidgetClass *parent_class;
 
 	if (event->keyval == GDK_Escape) {
 		g_signal_emit_by_name (widget, "cancel");
@@ -1165,8 +1169,8 @@ import_assistant_key_press_event (GtkWidget *widget,
 	}
 
 	/* Chain up to parent's key_press_event () method. */
-	widget_class = GTK_WIDGET_CLASS (parent_class);
-	return widget_class->key_press_event (widget, event);
+	parent_class = GTK_WIDGET_CLASS (e_import_assistant_parent_class);
+	return parent_class->key_press_event (widget, event);
 }
 
 static void
@@ -1209,13 +1213,12 @@ import_assistant_prepare (GtkAssistant *assistant,
 }
 
 static void
-import_assistant_class_init (EImportAssistantClass *class)
+e_import_assistant_class_init (EImportAssistantClass *class)
 {
 	GObjectClass *object_class;
 	GtkWidgetClass *widget_class;
 	GtkAssistantClass *assistant_class;
 
-	parent_class = g_type_class_peek_parent (class);
 	g_type_class_add_private (class, sizeof (EImportAssistantPrivate));
 
 	object_class = G_OBJECT_CLASS (class);
@@ -1268,6 +1271,8 @@ import_assistant_construct (EImportAssistant *import_assistant)
 	gtk_window_set_title (GTK_WINDOW (assistant), _("Evolution Import Assistant"));
 	gtk_window_set_default_size (GTK_WINDOW (assistant), 500, 330);
 
+	e_extensible_load_extensions (E_EXTENSIBLE (import_assistant));
+
 	if (import_assistant->priv->is_simple) {
 		/* simple import assistant page, URIs of files will be known later */
 		page = import_assistant_simple_page_init (import_assistant);
@@ -1360,37 +1365,11 @@ import_assistant_construct (EImportAssistant *import_assistant)
 }
 
 static void
-import_assistant_init (EImportAssistant *import_assistant)
+e_import_assistant_init (EImportAssistant *import_assistant)
 {
 	/* do nothing here */
 }
 
-GType
-e_import_assistant_get_type (void)
-{
-	static GType type = 0;
-
-	if (G_UNLIKELY (type == 0)) {
-		static const GTypeInfo type_info = {
-			sizeof (EImportAssistantClass),
-			(GBaseInitFunc) NULL,
-			(GBaseFinalizeFunc) NULL,
-			(GClassInitFunc) import_assistant_class_init,
-			(GClassFinalizeFunc) NULL,
-			NULL,  /* class_data */
-			sizeof (EImportAssistant),
-			0,     /* n_preallocs */
-			(GInstanceInitFunc) import_assistant_init,
-			NULL   /* value_table */
-		};
-
-		type = g_type_register_static (
-			GTK_TYPE_ASSISTANT, "EImportAssistant", &type_info, 0);
-	}
-
-	return type;
-}
-
 GtkWidget *
 e_import_assistant_new (GtkWindow *parent)
 {