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_history_changed (EvHistory *history,
61 EvNavigationAction *action = EV_NAVIGATION_ACTION (data);
63 gtk_action_set_sensitive (action, ev_history_get_n_links (history) > 0);
69 ev_navigation_action_set_history (EvNavigationAction *action,
72 action->priv->history = history;
74 g_object_add_weak_pointer (G_OBJECT (action->priv->history),
75 (gpointer) &action->priv->history);
77 g_signal_connect_object (history, "changed",
78 ev_navigation_action_history_changed,
83 activate_menu_item_cb (GtkWidget *widget, EvNavigationAction *action)
87 g_return_if_fail (EV_IS_HISTORY (action->priv->history));
89 index = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "index"));
91 if (action->priv->history) {
94 link = ev_history_get_link_nth (action->priv->history, index);
96 g_signal_emit (action, widget_signals[WIDGET_ACTIVATE_LINK], 0, link);
101 new_history_menu_item (EvNavigationAction *action,
109 title = ev_link_get_title (link);
110 item = gtk_image_menu_item_new_with_label (title);
111 gtk_label_set_use_markup (GTK_LABEL (gtk_bin_get_child (GTK_BIN (item))), TRUE);
112 g_object_set_data (G_OBJECT (item), "index",
113 GINT_TO_POINTER (index));
115 label = GTK_LABEL (GTK_BIN (item)->child);
116 gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);
117 gtk_label_set_max_width_chars (label, MAX_LABEL_LENGTH);
119 g_signal_connect (item, "activate",
120 G_CALLBACK (activate_menu_item_cb),
123 gtk_widget_show (item);
129 build_menu (EvNavigationAction *action)
134 EvHistory *history = action->priv->history;
137 if (history == NULL || ev_history_get_n_links (history) <= 0) {
141 menu = GTK_MENU_SHELL (gtk_menu_new ());
144 end = ev_history_get_n_links (history);
146 for (i = start; i < end; i++) {
147 link = ev_history_get_link_nth (history, i);
148 item = new_history_menu_item (action, link, i);
149 gtk_menu_shell_prepend (menu, item);
152 return GTK_WIDGET (menu);
156 menu_activated_cb (EvNavigationActionWidget *button,
157 EvNavigationAction *action)
161 menu = build_menu (action);
162 ev_navigation_action_widget_set_menu (button, menu);
166 connect_proxy (GtkAction *action, GtkWidget *proxy)
170 if (GTK_IS_TOOL_ITEM (proxy)) {
171 /* set dummy menu so the arrow gets sensitive */
172 menu = gtk_menu_new ();
173 ev_navigation_action_widget_set_menu (EV_NAVIGATION_ACTION_WIDGET (proxy), menu);
175 g_signal_connect (proxy, "show-menu",
176 G_CALLBACK (menu_activated_cb), action);
179 GTK_ACTION_CLASS (ev_navigation_action_parent_class)->connect_proxy (action, proxy);
183 create_tool_item (GtkAction *action)
185 EvNavigationActionWidget *proxy;
187 proxy = g_object_new (EV_TYPE_NAVIGATION_ACTION_WIDGET, NULL);
188 gtk_widget_show (GTK_WIDGET (proxy));
190 return GTK_WIDGET (proxy);
194 create_menu_item (GtkAction *action)
197 GtkWidget *menu_item;
199 menu = build_menu (EV_NAVIGATION_ACTION (action));
201 menu_item = GTK_ACTION_CLASS (ev_navigation_action_parent_class)->create_menu_item (action);
203 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu);
205 gtk_widget_show (menu_item);
211 ev_navigation_action_init (EvNavigationAction *action)
213 action->priv = EV_NAVIGATION_ACTION_GET_PRIVATE (action);
217 ev_navigation_action_finalize (GObject *object)
219 EvNavigationAction *action = EV_NAVIGATION_ACTION (object);
221 if (action->priv->history) {
222 g_object_remove_weak_pointer (G_OBJECT (action->priv->history),
223 (gpointer) &action->priv->history);
224 action->priv->history = NULL;
227 G_OBJECT_CLASS (ev_navigation_action_parent_class)->finalize (object);
231 ev_navigation_action_class_init (EvNavigationActionClass *class)
233 GObjectClass *object_class = G_OBJECT_CLASS (class);
234 GtkActionClass *action_class = GTK_ACTION_CLASS (class);
236 object_class->finalize = ev_navigation_action_finalize;
238 action_class->toolbar_item_type = GTK_TYPE_TOOL_ITEM;
239 action_class->create_tool_item = create_tool_item;
240 action_class->connect_proxy = connect_proxy;
241 action_class->create_menu_item = create_menu_item;
243 widget_signals[WIDGET_ACTIVATE_LINK] = g_signal_new ("activate_link",
244 G_OBJECT_CLASS_TYPE (object_class),
245 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
246 G_STRUCT_OFFSET (EvNavigationActionClass, activate_link),
248 g_cclosure_marshal_VOID__OBJECT,
252 g_type_class_add_private (object_class, sizeof (EvNavigationActionPrivate));