2 * Copyright (C) 2005 Marco Pesenti Gritti
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2, or (at your option)
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
22 #include <glib/gi18n.h>
25 #include "ev-history.h"
34 static guint signals[N_SIGNALS] = {0, };
36 struct _EvHistoryPrivate
41 static void ev_history_init (EvHistory *history);
42 static void ev_history_class_init (EvHistoryClass *class);
44 G_DEFINE_TYPE (EvHistory, ev_history, G_TYPE_OBJECT)
46 #define EV_HISTORY_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_HISTORY, EvHistoryPrivate))
49 ev_history_init (EvHistory *history)
51 history->priv = EV_HISTORY_GET_PRIVATE (history);
53 history->priv->links = NULL;
57 free_links_list (GList *l)
59 g_list_foreach (l, (GFunc)g_object_unref, NULL);
64 ev_history_finalize (GObject *object)
66 EvHistory *history = EV_HISTORY (object);
68 free_links_list (history->priv->links);
70 G_OBJECT_CLASS (ev_history_parent_class)->finalize (object);
74 ev_history_class_init (EvHistoryClass *class)
76 GObjectClass *object_class = G_OBJECT_CLASS (class);
78 object_class->finalize = ev_history_finalize;
80 signals[HISTORY_CHANGED] =
81 g_signal_new ("changed",
82 G_OBJECT_CLASS_TYPE (object_class),
83 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
84 G_STRUCT_OFFSET (EvHistoryClass, changed),
86 g_cclosure_marshal_VOID__VOID,
89 g_type_class_add_private (object_class, sizeof (EvHistoryPrivate));
92 #define HISTORY_LENGTH 7
95 ev_history_add_link (EvHistory *history, EvLink *link)
99 g_return_if_fail (EV_IS_HISTORY (history));
100 g_return_if_fail (EV_IS_LINK (link));
102 for (l = history->priv->links; l; l = l->next) {
103 if (!strcmp (ev_link_get_title (EV_LINK (l->data)), ev_link_get_title (link))) {
104 g_object_unref (G_OBJECT (l->data));
105 history->priv->links = g_list_delete_link (history->priv->links, l);
111 history->priv->links = g_list_append (history->priv->links,
114 if (g_list_length (history->priv->links) > HISTORY_LENGTH) {
115 g_object_unref (G_OBJECT (history->priv->links->data));
116 history->priv->links = g_list_delete_link (history->priv->links,
117 history->priv->links);
120 g_signal_emit (history, signals[HISTORY_CHANGED], 0);
124 ev_history_get_link_nth (EvHistory *history, int index)
128 g_return_val_if_fail (EV_IS_HISTORY (history), NULL);
130 l = g_list_nth (history->priv->links, index);
132 return EV_LINK (l->data);
136 ev_history_get_n_links (EvHistory *history)
138 g_return_val_if_fail (EV_IS_HISTORY (history), -1);
140 return g_list_length (history->priv->links);
144 ev_history_new (void)
146 return EV_HISTORY (g_object_new (EV_TYPE_HISTORY, NULL));