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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23 #include <glib/gi18n.h>
26 #include "ev-navigation-action.h"
27 #include "ev-navigation-action-widget.h"
36 static guint widget_signals[WIDGET_N_SIGNALS] = {0, };
38 struct _EvNavigationActionPrivate
43 static void ev_navigation_action_init (EvNavigationAction *action);
44 static void ev_navigation_action_class_init (EvNavigationActionClass *class);
46 G_DEFINE_TYPE (EvNavigationAction, ev_navigation_action, GTK_TYPE_ACTION)
48 #define MAX_LABEL_LENGTH 48
50 #define EV_NAVIGATION_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_NAVIGATION_ACTION, EvNavigationActionPrivate))
53 ev_navigation_action_history_changed (EvHistory *history,
56 EvNavigationAction *action = EV_NAVIGATION_ACTION (data);
58 gtk_action_set_sensitive (GTK_ACTION (action),
59 ev_history_get_n_links (history) > 0);
63 ev_navigation_action_set_history (EvNavigationAction *action,
66 action->priv->history = history;
68 g_object_add_weak_pointer (G_OBJECT (action->priv->history),
69 (gpointer) &action->priv->history);
71 g_signal_connect_object (history, "changed",
72 G_CALLBACK (ev_navigation_action_history_changed),
77 activate_menu_item_cb (GtkWidget *widget, EvNavigationAction *action)
81 g_return_if_fail (EV_IS_HISTORY (action->priv->history));
83 index = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "index"));
85 if (action->priv->history) {
88 link = ev_history_get_link_nth (action->priv->history, index);
90 g_signal_emit (action, widget_signals[WIDGET_ACTIVATE_LINK], 0, link);
95 new_history_menu_item (EvNavigationAction *action,
103 title = ev_link_get_title (link);
104 item = gtk_image_menu_item_new_with_label (title);
105 label = GTK_LABEL (gtk_bin_get_child (GTK_BIN (item)));
106 gtk_label_set_use_markup (label, TRUE);
107 g_object_set_data (G_OBJECT (item), "index",
108 GINT_TO_POINTER (index));
110 gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);
111 gtk_label_set_max_width_chars (label, MAX_LABEL_LENGTH);
113 g_signal_connect (item, "activate",
114 G_CALLBACK (activate_menu_item_cb),
117 gtk_widget_show (item);
123 build_menu (EvNavigationAction *action)
128 EvHistory *history = action->priv->history;
131 if (history == NULL || ev_history_get_n_links (history) <= 0) {
135 menu = GTK_MENU_SHELL (gtk_menu_new ());
138 end = ev_history_get_n_links (history);
140 for (i = start; i < end; i++) {
141 link = ev_history_get_link_nth (history, i);
142 item = new_history_menu_item (action, link, i);
143 gtk_menu_shell_prepend (menu, item);
146 return GTK_WIDGET (menu);
150 menu_activated_cb (EvNavigationActionWidget *button,
151 EvNavigationAction *action)
155 menu = build_menu (action);
156 ev_navigation_action_widget_set_menu (button, menu);
160 connect_proxy (GtkAction *action, GtkWidget *proxy)
164 if (GTK_IS_TOOL_ITEM (proxy)) {
165 /* set dummy menu so the arrow gets sensitive */
166 menu = gtk_menu_new ();
167 ev_navigation_action_widget_set_menu (EV_NAVIGATION_ACTION_WIDGET (proxy), menu);
169 g_signal_connect (proxy, "show-menu",
170 G_CALLBACK (menu_activated_cb), action);
173 GTK_ACTION_CLASS (ev_navigation_action_parent_class)->connect_proxy (action, proxy);
177 create_tool_item (GtkAction *action)
179 EvNavigationActionWidget *proxy;
181 proxy = g_object_new (EV_TYPE_NAVIGATION_ACTION_WIDGET, NULL);
182 gtk_widget_show (GTK_WIDGET (proxy));
184 return GTK_WIDGET (proxy);
188 create_menu_item (GtkAction *action)
191 GtkWidget *menu_item;
193 menu = build_menu (EV_NAVIGATION_ACTION (action));
195 menu_item = GTK_ACTION_CLASS (ev_navigation_action_parent_class)->create_menu_item (action);
197 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu);
199 gtk_widget_show (menu_item);
205 ev_navigation_action_init (EvNavigationAction *action)
207 action->priv = EV_NAVIGATION_ACTION_GET_PRIVATE (action);
211 ev_navigation_action_finalize (GObject *object)
213 EvNavigationAction *action = EV_NAVIGATION_ACTION (object);
215 if (action->priv->history) {
216 g_object_remove_weak_pointer (G_OBJECT (action->priv->history),
217 (gpointer) &action->priv->history);
218 action->priv->history = NULL;
221 G_OBJECT_CLASS (ev_navigation_action_parent_class)->finalize (object);
225 ev_navigation_action_class_init (EvNavigationActionClass *class)
227 GObjectClass *object_class = G_OBJECT_CLASS (class);
228 GtkActionClass *action_class = GTK_ACTION_CLASS (class);
230 object_class->finalize = ev_navigation_action_finalize;
232 action_class->toolbar_item_type = GTK_TYPE_TOOL_ITEM;
233 action_class->create_tool_item = create_tool_item;
234 action_class->connect_proxy = connect_proxy;
235 action_class->create_menu_item = create_menu_item;
237 widget_signals[WIDGET_ACTIVATE_LINK] = g_signal_new ("activate_link",
238 G_OBJECT_CLASS_TYPE (object_class),
239 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
240 G_STRUCT_OFFSET (EvNavigationActionClass, activate_link),
242 g_cclosure_marshal_VOID__OBJECT,
246 g_type_class_add_private (object_class, sizeof (EvNavigationActionPrivate));