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/*
* Copyright (C) 2003, 2004 Marco Pesenti Gritti
* Copyright (C) 2003, 2004 Christian Persch
*
* 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, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "ev-navigation-action-widget.h"
#include <glib/gi18n.h>
#include <string.h>
static void ev_navigation_action_widget_init (EvNavigationActionWidget *action_widget);
static void ev_navigation_action_widget_class_init (EvNavigationActionWidgetClass *action_widget);
static void ev_navigation_action_widget_toggled (GtkToggleToolButton *toggle);
static gboolean ev_navigation_action_widget_button_press_event (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
G_DEFINE_TYPE (EvNavigationActionWidget, ev_navigation_action_widget, GTK_TYPE_TOGGLE_TOOL_BUTTON)
enum
{
SHOW_MENU,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
static void
ev_navigation_action_widget_init (EvNavigationActionWidget *action_widget)
{
GtkWidget *toggle_button;
/* It's rather dirty hack but we need a child to connect to
* button press event
*/
toggle_button = gtk_bin_get_child (GTK_BIN (action_widget));
g_signal_connect (toggle_button, "button-press-event",
G_CALLBACK (ev_navigation_action_widget_button_press_event),
action_widget);
return;
}
static void
ev_navigation_action_widget_class_init (EvNavigationActionWidgetClass *klass)
{
GtkToggleToolButtonClass *toggle_tool_button_class = GTK_TOGGLE_TOOL_BUTTON_CLASS (klass);
toggle_tool_button_class->toggled = ev_navigation_action_widget_toggled;
signals[SHOW_MENU] =
g_signal_new ("show-menu",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (EvNavigationActionWidgetClass, show_menu),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static int
menu_deactivate_cb (GtkMenuShell *menu_shell,
EvNavigationActionWidget *widget)
{
gtk_toggle_tool_button_set_active (GTK_TOGGLE_TOOL_BUTTON (widget), FALSE);
return TRUE;
}
static void
menu_detacher (GtkWidget *widget,
GtkMenu *menu)
{
EvNavigationActionWidget *button = EV_NAVIGATION_ACTION_WIDGET (widget);
g_return_if_fail (button->menu == menu);
button->menu = NULL;
}
void
ev_navigation_action_widget_set_menu(EvNavigationActionWidget *button, GtkWidget *menu)
{
if (button->menu == GTK_MENU (menu))
return;
if (button->menu && gtk_widget_get_visible (GTK_WIDGET (button->menu)))
gtk_menu_shell_deactivate (GTK_MENU_SHELL (button->menu));
if (button->menu) {
g_signal_handlers_disconnect_by_func (button->menu,
menu_deactivate_cb,
button);
gtk_menu_detach (button->menu);
}
button->menu = GTK_MENU (menu);
if (button->menu) {
gtk_menu_attach_to_widget (button->menu, GTK_WIDGET (button),
menu_detacher);
g_signal_connect (button->menu, "deactivate",
G_CALLBACK (menu_deactivate_cb), button);
}
}
static void
popup_menu_under_arrow (EvNavigationActionWidget *button,
GdkEventButton *event)
{
g_signal_emit (button, signals[SHOW_MENU], 0);
if (!button->menu)
return;
gtk_menu_popup_at_pointer (button->menu,
(const GdkEvent*) event);
}
static void
ev_navigation_action_widget_toggled (GtkToggleToolButton *toggle)
{
EvNavigationActionWidget *button = EV_NAVIGATION_ACTION_WIDGET (toggle);
if (!button->menu)
return;
if (gtk_toggle_tool_button_get_active (GTK_TOGGLE_TOOL_BUTTON (button)) &&
!gtk_widget_get_visible (GTK_WIDGET (button->menu))) {
/* we get here only when the menu is activated by a key
* press, so that we can select the first menu item */
popup_menu_under_arrow (button, NULL);
gtk_menu_shell_select_first (GTK_MENU_SHELL (button->menu), FALSE);
}
}
static gboolean
ev_navigation_action_widget_button_press_event (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
EvNavigationActionWidget *button = EV_NAVIGATION_ACTION_WIDGET (data);
if (event->button == 1) {
popup_menu_under_arrow (button, event);
gtk_toggle_tool_button_set_active (GTK_TOGGLE_TOOL_BUTTON (button), TRUE);
return TRUE;
}
return FALSE;
}
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