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/*
* Copyright (C) 2010 Girish Ramakrishnan <girish@forwardbias.in>
* Copyright (C) 2009, 2011 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 "QtWebComboBox.h"
#ifndef QT_NO_COMBOBOX
#include <QAbstractItemView>
#include <QCoreApplication>
#include <QtGui/QMouseEvent>
namespace WebCore {
QtWebComboBox::QtWebComboBox()
: QComboBox(), m_hiding(false), m_deleteAfterHiding(false)
{
// Install an event filter on the view inside the combo box popup to make sure we know
// when the popup got closed. E.g. QComboBox::hidePopup() won't be called when the popup
// is closed by a mouse wheel event outside its window.
view()->installEventFilter(this);
}
void QtWebComboBox::showPopupAtCursorPosition()
{
QMouseEvent event(QEvent::MouseButtonPress, QCursor::pos(), Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
QCoreApplication::sendEvent(this, &event);
}
bool QtWebComboBox::eventFilter(QObject* watched, QEvent* event)
{
Q_ASSERT(watched == view());
if (event->type() == QEvent::Hide)
emit didHide();
return false;
}
void QtWebComboBox::hidePopup()
{
if (m_hiding)
return;
m_hiding = true;
// QComboBox::hidePopup() runs an eventloop, we need to make sure we do not delete ourselves in that loop.
QComboBox::hidePopup();
m_hiding = false;
if (m_deleteAfterHiding) {
deleteLater();
m_deleteAfterHiding = false;
}
}
void QtWebComboBox::deleteComboBox()
{
if (!m_hiding)
deleteLater();
else
m_deleteAfterHiding = true;
}
} // namespace
#endif // QT_NO_COMBOBOX
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