[First cut at navigation (i.e. back/forward) buttons.]

* e-shell-view.c: New member `history' in `EShellViewPrivate'.
(init): Initialize.
(destroy): Unref.
(e_shell_view_display_uri): Make it a no-op if the URI is the same
as the current one.  Also, moved code into `display_uri' and use
it.
(back_clicked_callback): New, callback for the back button on the
folder title bar.
(forward_clicked_callback): Likewise for the forward button.

* e-history.c: New.
* e-history.h: New.

svn path=/trunk/; revision=15798

1 files changed, 84 insertions, 0 deletions

diff --git a/shell/e-history.h b/shell/e-history.h
new file mode 100644
index 0000000000..f2d4efb1fa
--- /dev/null
+++ b/shell/e-history.h
@@ -0,0 +1,84 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-history.h
+ *
+ * Copyright (C) 2002  Ximian, Inc.
+ *
+ * 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.
+ *
+ * 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>
+ */
+
+#ifndef _E_HISTORY_H_
+#define _E_HISTORY_H_
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gnome.h>
+
+#ifdef __cplusplus
+extern "C" {
+#pragma }
+#endif /* __cplusplus */
+
+#define E_TYPE_HISTORY			(e_history_get_type ())
+#define E_HISTORY(obj)			(GTK_CHECK_CAST ((obj), E_TYPE_HISTORY, EHistory))
+#define E_HISTORY_CLASS(klass)		(GTK_CHECK_CLASS_CAST ((klass), E_TYPE_HISTORY, EHistoryClass))
+#define E_IS_HISTORY(obj)		(GTK_CHECK_TYPE ((obj), E_TYPE_HISTORY))
+#define E_IS_HISTORY_CLASS(klass)	(GTK_CHECK_CLASS_TYPE ((obj), E_TYPE_HISTORY))
+
+
+typedef struct _EHistory        EHistory;
+typedef struct _EHistoryPrivate EHistoryPrivate;
+typedef struct _EHistoryClass   EHistoryClass;
+
+struct _EHistory {
+	GtkObject parent;
+
+	EHistoryPrivate *priv;
+};
+
+struct _EHistoryClass {
+	GtkObjectClass parent_class;
+};
+
+
+typedef void (* EHistoryItemFreeFunc) (void *data);
+
+
+GtkType    e_history_get_type (void);
+
+void      e_history_construct  (EHistory             *history,
+				EHistoryItemFreeFunc  item_free_function);
+EHistory *e_history_new        (EHistoryItemFreeFunc  item_free_function);
+
+void     *e_history_prev         (EHistory *history);
+gboolean  e_history_has_prev     (EHistory *history);
+
+void     *e_history_next         (EHistory *history);
+gboolean  e_history_has_next     (EHistory *history);
+
+void     *e_history_get_current  (EHistory *history);
+
+void      e_history_add          (EHistory *history,
+				  void     *data);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _E_HISTORY_H_ */