New test.

* test-source-option-menu.c: New test.

* e-source-option-menu.h: New.
* e-source-option-menu.c: New.

svn path=/trunk/; revision=23511

1 files changed, 280 insertions, 0 deletions

diff --git a/widgets/misc/e-source-option-menu.c b/widgets/misc/e-source-option-menu.c
new file mode 100644
index 0000000000..3904a20dba
--- /dev/null
+++ b/widgets/misc/e-source-option-menu.c
@@ -0,0 +1,280 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-source-option-menu.c
+ *
+ * Copyright (C) 2003  Novell, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * Author: Ettore Perazzoli <ettore@ximian.com>
+ */
+
+#include <config.h>
+
+#include "e-source-option-menu.h"
+
+#include <gal/util/e-util.h>
+
+#include <gtk/gtkmenu.h>
+#include <gtk/gtkmenuitem.h>
+
+
+#define PARENT_TYPE gtk_option_menu_get_type ()
+static GtkOptionMenuClass *parent_class = NULL;
+
+
+/* We set data on each menu item specifying the corresponding ESource using this key.  */
+#define MENU_ITEM_SOURCE_DATA_ID	"ESourceOptionMenu:Source"
+
+
+struct _ESourceOptionMenuPrivate {
+	ESourceList *source_list;
+
+	ESource *selected_source;
+};
+
+
+/* Selecting a source.  */
+
+typedef struct {
+	ESourceOptionMenu *option_menu;
+	int i;
+} ForeachMenuItemData;
+
+static void
+select_source_foreach_menu_item (GtkWidget *menu_item,
+				 ForeachMenuItemData *data)
+{
+	ESource *source = gtk_object_get_data (GTK_OBJECT (menu_item), MENU_ITEM_SOURCE_DATA_ID);
+
+	if (source == data->option_menu->priv->selected_source)
+		gtk_option_menu_set_history (GTK_OPTION_MENU (data->option_menu), data->i);
+
+	data->i ++;
+}
+
+static void
+select_source (ESourceOptionMenu *menu,
+	       ESource *source)
+{
+	if (menu->priv->selected_source != NULL)
+		g_object_unref (menu->priv->selected_source);
+	menu->priv->selected_source = source;
+
+	if (source != NULL) {
+		ForeachMenuItemData *foreach_data = g_new0 (ForeachMenuItemData, 1);
+
+		foreach_data->option_menu = menu;
+
+		gtk_container_foreach (GTK_CONTAINER (GTK_OPTION_MENU (menu)->menu),
+				       (GtkCallback) select_source_foreach_menu_item, foreach_data);
+
+		g_free (foreach_data);
+		g_object_ref (source);
+	}
+}
+
+
+/* Menu callback.  */
+
+static void
+menu_item_activate_callback (GtkMenuItem *menu_item,
+			     ESourceOptionMenu *option_menu)
+{
+	ESource *source = gtk_object_get_data (GTK_OBJECT (menu_item), MENU_ITEM_SOURCE_DATA_ID);
+
+	if (source != NULL)
+		select_source (option_menu, source);
+}
+
+
+/* Functions to keep the menu in sync with the ESourceList.  */
+
+static void
+populate (ESourceOptionMenu *option_menu)
+{
+	GtkWidget *menu = gtk_menu_new ();
+	GSList *groups = e_source_list_peek_groups (option_menu->priv->source_list);
+	GSList *p;
+	ESource *first_source = NULL;
+	int first_source_item = -1;
+	int selected_item = -1;
+	int i;
+
+	i = 0;
+	for (p = groups; p != NULL; p = p->next) {
+		ESourceGroup *group = E_SOURCE_GROUP (p->data);
+		GtkWidget *item = gtk_menu_item_new_with_label (e_source_group_peek_name (group));
+		GSList *q;
+
+		gtk_widget_set_sensitive (item, FALSE);
+		gtk_widget_show (item);
+		gtk_menu_append (GTK_MENU (menu), item);
+
+		i ++;
+
+		for (q = e_source_group_peek_sources (group); q != NULL; q = q->next) {
+			ESource *source = E_SOURCE (q->data);
+			char *label = g_strconcat ("    ", e_source_peek_name (source), NULL);
+			GtkWidget *item = gtk_menu_item_new_with_label (label);
+
+			gtk_object_set_data_full (GTK_OBJECT (item), MENU_ITEM_SOURCE_DATA_ID, source,
+						  (GtkDestroyNotify) g_object_unref);
+			g_object_ref (source);
+
+			g_signal_connect (item, "activate", G_CALLBACK (menu_item_activate_callback), option_menu);
+
+			gtk_widget_show (item);
+			gtk_menu_append (GTK_MENU (menu), item);
+
+			if (first_source_item == -1) {
+				first_source_item = i;
+				first_source = source;
+			}
+
+			if (source == option_menu->priv->selected_source)
+				selected_item = i;
+
+			i ++;
+		}
+	}
+
+	gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
+
+	if (selected_item != -1) {
+		gtk_option_menu_set_history (GTK_OPTION_MENU (option_menu), selected_item);
+	} else {
+		if (option_menu->priv->selected_source != NULL)
+			g_object_unref (option_menu->priv->selected_source);
+		option_menu->priv->selected_source = first_source;
+		if (option_menu->priv->selected_source != NULL)
+			g_object_ref (option_menu->priv->selected_source);
+
+		gtk_option_menu_set_history (GTK_OPTION_MENU (option_menu), first_source_item);
+	}
+}
+
+
+static void
+source_list_changed_callback (ESourceList *list,
+			      ESourceOptionMenu *menu)
+{
+	populate (menu);
+}
+
+static void
+connect_signals (ESourceOptionMenu *menu)
+{
+	g_signal_connect_object (menu->priv->source_list, "changed",
+				 G_CALLBACK (source_list_changed_callback), G_OBJECT (menu), 0);
+}
+
+
+/* GObject methods.  */
+
+static void
+impl_dispose (GObject *object)
+{
+	ESourceOptionMenuPrivate *priv = E_SOURCE_OPTION_MENU (object)->priv;
+
+	if (priv->source_list != NULL) {
+		g_object_unref (priv->source_list);
+		priv->source_list = NULL;
+	}
+
+	if (priv->selected_source != NULL) {
+		g_object_unref (priv->selected_source);
+		priv->selected_source = NULL;
+	}
+
+	(* G_OBJECT_CLASS (parent_class)->dispose) (object);
+}
+
+static void
+impl_finalize (GObject *object)
+{
+	ESourceOptionMenuPrivate *priv = E_SOURCE_OPTION_MENU (object)->priv;
+
+	g_free (priv);
+
+	(* G_OBJECT_CLASS (parent_class)->finalize) (object);
+}
+
+
+/* Initialization.  */
+
+static void
+class_init (ESourceOptionMenuClass *class)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+	object_class->dispose  = impl_dispose;
+	object_class->finalize = impl_finalize;
+
+	parent_class = g_type_class_peek_parent (class);
+}
+
+static void
+init (ESourceOptionMenu *source_option_menu)
+{
+	ESourceOptionMenuPrivate *priv;
+
+	priv = g_new0 (ESourceOptionMenuPrivate, 1);
+
+	source_option_menu->priv = priv;
+}
+
+
+/* Public methods.  */
+
+GtkWidget *
+e_source_option_menu_new (ESourceList *source_list)
+{
+	ESourceOptionMenu *menu;
+
+	g_return_val_if_fail (E_IS_SOURCE_LIST (source_list), NULL);
+
+	menu = g_object_new (e_source_option_menu_get_type (), NULL);
+
+	menu->priv->source_list = source_list;
+	g_object_ref (source_list);
+
+	connect_signals (menu);
+	populate (menu);
+
+	return GTK_WIDGET (menu);
+}
+
+
+ESource *
+e_source_option_menu_peek_selected  (ESourceOptionMenu *menu)
+{
+	g_return_val_if_fail (E_IS_SOURCE_OPTION_MENU (menu), NULL);
+
+	return menu->priv->selected_source;
+}
+
+
+void
+e_source_option_menu_select (ESourceOptionMenu *menu,
+			     ESource *source)
+{
+	g_return_if_fail (E_IS_SOURCE_OPTION_MENU (menu));
+	g_return_if_fail (E_IS_SOURCE (source));
+
+	select_source (menu, source);
+}
+
+
+E_MAKE_TYPE (e_source_option_menu, "ESourceOptionMenu", ESourceOptionMenu, class_init, init, PARENT_TYPE)