2 * Copyright (C) 2003, 2004 Marco Pesenti Gritti
3 * Copyright (C) 2003, 2004 Christian Persch
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 #include "ev-navigation-action.h"
24 #include "ev-navigation-action-widget.h"
26 #include <gtk/gtklabel.h>
27 #include <gtk/gtkimage.h>
28 #include <gtk/gtkmenuitem.h>
29 #include <gtk/gtkimagemenuitem.h>
30 #include <gtk/gtkmenushell.h>
31 #include <gtk/gtkmenu.h>
32 #include <gtk/gtkmenutoolbutton.h>
33 #include <glib/gi18n.h>
41 static guint widget_signals[WIDGET_N_SIGNALS] = {0, };
43 struct _EvNavigationActionPrivate
48 static void ev_navigation_action_init (EvNavigationAction *action);
49 static void ev_navigation_action_class_init (EvNavigationActionClass *class);
51 G_DEFINE_TYPE (EvNavigationAction, ev_navigation_action, GTK_TYPE_ACTION)
53 #define MAX_LABEL_LENGTH 48
55 #define EV_NAVIGATION_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_NAVIGATION_ACTION, EvNavigationActionPrivate))
58 ev_navigation_action_set_history (EvNavigationAction *action,
61 action->priv->history = history;
63 g_object_add_weak_pointer (G_OBJECT (action->priv->history),
64 (gpointer *) &action->priv->history);
68 activate_menu_item_cb (GtkWidget *widget, EvNavigationAction *action)
72 g_return_if_fail (EV_IS_HISTORY (action->priv->history));
74 index = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "index"));
75 ev_history_set_current_index (action->priv->history, index);
77 if (action->priv->history) {
80 link = ev_history_get_link_nth (action->priv->history, index);
82 g_signal_emit (action, widget_signals[WIDGET_ACTIVATE_LINK], 0, link);
87 new_history_menu_item (EvNavigationAction *action,
95 title = ev_link_get_title (link);
96 item = gtk_image_menu_item_new_with_label (title);
97 g_object_set_data (G_OBJECT (item), "index",
98 GINT_TO_POINTER (index));
100 label = GTK_LABEL (GTK_BIN (item)->child);
101 gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);
102 gtk_label_set_max_width_chars (label, MAX_LABEL_LENGTH);
104 g_signal_connect (item, "activate",
105 G_CALLBACK (activate_menu_item_cb),
108 gtk_widget_show (item);
114 new_empty_history_menu_item (EvNavigationAction *action)
118 item = gtk_image_menu_item_new_with_label (_("Empty"));
119 gtk_widget_set_sensitive (item, FALSE);
120 gtk_widget_show (item);
126 build_menu (EvNavigationAction *action)
131 EvHistory *history = action->priv->history;
134 menu = GTK_MENU_SHELL (gtk_menu_new ());
136 if (history == NULL || ev_history_get_n_links (history) <= 0) {
137 item = new_empty_history_menu_item (action);
138 gtk_menu_shell_append (menu, item);
139 return GTK_WIDGET (menu);
142 start = MAX (ev_history_get_current_index (action->priv->history) - 5, 0);
143 end = MIN (ev_history_get_n_links (history), start + 7);
145 for (i = start; i < end; i++) {
146 link = ev_history_get_link_nth (history, i);
147 item = new_history_menu_item (action, link, i);
148 gtk_menu_shell_prepend (menu, item);
151 return GTK_WIDGET (menu);
155 menu_activated_cb (EvNavigationActionWidget *button,
156 EvNavigationAction *action)
160 menu = build_menu (action);
161 ev_navigation_action_widget_set_menu (button, menu);
165 connect_proxy (GtkAction *action, GtkWidget *proxy)
169 /* set dummy menu so the arrow gets sensitive */
170 menu = gtk_menu_new ();
171 ev_navigation_action_widget_set_menu (EV_NAVIGATION_ACTION_WIDGET (proxy), menu);
173 g_signal_connect (proxy, "show-menu",
174 G_CALLBACK (menu_activated_cb), action);
176 GTK_ACTION_CLASS (ev_navigation_action_parent_class)->connect_proxy (action, proxy);
180 create_tool_item (GtkAction *action)
182 EvNavigationActionWidget *proxy;
184 proxy = g_object_new (EV_TYPE_NAVIGATION_ACTION_WIDGET, NULL);
185 gtk_widget_show (GTK_WIDGET (proxy));
187 return GTK_WIDGET (proxy);
191 ev_navigation_action_init (EvNavigationAction *action)
193 action->priv = EV_NAVIGATION_ACTION_GET_PRIVATE (action);
197 ev_navigation_action_finalize (GObject *object)
199 EvNavigationAction *action = EV_NAVIGATION_ACTION (object);
201 if (action->priv->history) {
202 g_object_add_weak_pointer (G_OBJECT (action->priv->history),
203 (gpointer *) &action->priv->history);
206 G_OBJECT_CLASS (ev_navigation_action_parent_class)->finalize (object);
210 ev_navigation_action_class_init (EvNavigationActionClass *class)
212 GObjectClass *object_class = G_OBJECT_CLASS (class);
213 GtkActionClass *action_class = GTK_ACTION_CLASS (class);
215 object_class->finalize = ev_navigation_action_finalize;
217 action_class->toolbar_item_type = GTK_TYPE_TOOL_ITEM;
218 action_class->create_tool_item = create_tool_item;
219 action_class->connect_proxy = connect_proxy;
221 widget_signals[WIDGET_ACTIVATE_LINK] = g_signal_new ("activate_link",
222 G_OBJECT_CLASS_TYPE (object_class),
223 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
224 G_STRUCT_OFFSET (EvNavigationActionClass, activate_link),
226 g_cclosure_marshal_VOID__OBJECT,
230 g_type_class_add_private (object_class, sizeof (EvNavigationActionPrivate));