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/*
* This file is part of the popup menu implementation for <select> elements in WebCore.
*
* Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
* Copyright (C) 2008 Collabora Ltd.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "PopupMenuGtk.h"
#include "FrameView.h"
#include "GtkVersioning.h"
#include "HostWindow.h"
#include "PlatformString.h"
#include <wtf/text/CString.h>
#include <gtk/gtk.h>
namespace WebCore {
PopupMenuGtk::PopupMenuGtk(PopupMenuClient* client)
: m_popupClient(client)
{
}
PopupMenuGtk::~PopupMenuGtk()
{
if (m_popup) {
g_signal_handlers_disconnect_matched(m_popup.get(), G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, this);
hide();
}
}
void PopupMenuGtk::show(const IntRect& rect, FrameView* view, int index)
{
ASSERT(client());
if (!m_popup) {
m_popup = GTK_MENU(gtk_menu_new());
g_signal_connect(m_popup.get(), "unmap", G_CALLBACK(menuUnmapped), this);
} else
gtk_container_foreach(GTK_CONTAINER(m_popup.get()), reinterpret_cast<GtkCallback>(menuRemoveItem), this);
int x, y;
gdk_window_get_origin(gtk_widget_get_window(GTK_WIDGET(view->hostWindow()->platformPageClient())), &x, &y);
m_menuPosition = view->contentsToWindow(rect.location());
m_menuPosition = IntPoint(m_menuPosition.x() + x, m_menuPosition.y() + y + rect.height());
m_indexMap.clear();
const int size = client()->listSize();
for (int i = 0; i < size; ++i) {
GtkWidget* item;
if (client()->itemIsSeparator(i))
item = gtk_separator_menu_item_new();
else
item = gtk_menu_item_new_with_label(client()->itemText(i).utf8().data());
m_indexMap.add(item, i);
g_signal_connect(item, "activate", G_CALLBACK(menuItemActivated), this);
// FIXME: Apply the PopupMenuStyle from client()->itemStyle(i)
gtk_widget_set_sensitive(item, client()->itemIsEnabled(i));
gtk_menu_shell_append(GTK_MENU_SHELL(m_popup.get()), item);
gtk_widget_show(item);
}
gtk_menu_set_active(m_popup.get(), index);
// The size calls are directly copied from gtkcombobox.c which is LGPL
GtkRequisition requisition;
gtk_widget_set_size_request(GTK_WIDGET(m_popup.get()), -1, -1);
#ifdef GTK_API_VERSION_2
gtk_widget_size_request(GTK_WIDGET(m_popup.get()), &requisition);
#else
gtk_widget_get_preferred_size(GTK_WIDGET(m_popup.get()), &requisition, 0);
#endif
gtk_widget_set_size_request(GTK_WIDGET(m_popup.get()), std::max(rect.width(), requisition.width), -1);
GList* children = gtk_container_get_children(GTK_CONTAINER(m_popup.get()));
GList* p = children;
if (size) {
for (int i = 0; i < size; i++) {
if (i > index)
break;
GtkWidget* item = reinterpret_cast<GtkWidget*>(p->data);
GtkRequisition itemRequisition;
#ifdef GTK_API_VERSION_2
gtk_widget_get_child_requisition(item, &itemRequisition);
#else
gtk_widget_get_preferred_size(item, &itemRequisition, 0);
#endif
m_menuPosition.setY(m_menuPosition.y() - itemRequisition.height);
p = g_list_next(p);
}
} else {
// Center vertically the empty popup in the combo box area
m_menuPosition.setY(m_menuPosition.y() - rect.height() / 2);
}
g_list_free(children);
gtk_menu_popup(m_popup.get(), 0, 0, reinterpret_cast<GtkMenuPositionFunc>(menuPositionFunction), this, 0, gtk_get_current_event_time());
}
void PopupMenuGtk::hide()
{
ASSERT(m_popup);
gtk_menu_popdown(m_popup.get());
}
void PopupMenuGtk::updateFromElement()
{
client()->setTextFromItem(client()->selectedIndex());
}
void PopupMenuGtk::disconnectClient()
{
m_popupClient = 0;
}
void PopupMenuGtk::menuItemActivated(GtkMenuItem* item, PopupMenuGtk* that)
{
ASSERT(that->client());
ASSERT(that->m_indexMap.contains(GTK_WIDGET(item)));
that->client()->valueChanged(that->m_indexMap.get(GTK_WIDGET(item)));
}
void PopupMenuGtk::menuUnmapped(GtkWidget*, PopupMenuGtk* that)
{
ASSERT(that->client());
that->client()->popupDidHide();
}
void PopupMenuGtk::menuPositionFunction(GtkMenu*, gint* x, gint* y, gboolean* pushIn, PopupMenuGtk* that)
{
*x = that->m_menuPosition.x();
*y = that->m_menuPosition.y();
*pushIn = true;
}
void PopupMenuGtk::menuRemoveItem(GtkWidget* widget, PopupMenuGtk* that)
{
ASSERT(that->m_popup);
gtk_container_remove(GTK_CONTAINER(that->m_popup.get()), widget);
}
}
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