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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickmenupopupwindow_p.h"
#include <qguiapplication.h>
#include <qpa/qwindowsysteminterface.h>
#include <qquickitem.h>
#include <QtGui/QScreen>
#include <QtQuick/QQuickRenderControl>
#include "qquickmenu_p.h"
#include "qquickmenubar_p.h"
QT_BEGIN_NAMESPACE
QQuickMenuPopupWindow::QQuickMenuPopupWindow(QQuickMenu1 *menu) :
m_itemAt(0),
m_logicalParentWindow(0),
m_menu(menu)
{
}
void QQuickMenuPopupWindow::setParentItem(QQuickItem *item)
{
QQuickPopupWindow::setParentItem(item);
if (item) {
QWindow *parentWindow = item->window();
QWindow *renderWindow = QQuickRenderControl::renderWindowFor(static_cast<QQuickWindow *>(parentWindow));
setParentWindow(renderWindow ? renderWindow : parentWindow, item->window());
}
}
void QQuickMenuPopupWindow::setItemAt(QQuickItem *menuItem)
{
if (m_itemAt) {
disconnect(m_itemAt, SIGNAL(xChanged()), this, SLOT(updatePosition()));
disconnect(m_itemAt, SIGNAL(yChanged()), this, SLOT(updatePosition()));
}
m_itemAt = menuItem;
if (menuItem) {
m_oldItemPos = menuItem->position().toPoint();
connect(menuItem, SIGNAL(xChanged()), this, SLOT(updatePosition()));
connect(menuItem, SIGNAL(yChanged()), this, SLOT(updatePosition()));
}
}
void QQuickMenuPopupWindow::setParentWindow(QWindow *effectiveParentWindow, QQuickWindow *parentWindow)
{
while (effectiveParentWindow && effectiveParentWindow->parent())
effectiveParentWindow = effectiveParentWindow->parent();
if (transientParent() != effectiveParentWindow)
setTransientParent(effectiveParentWindow);
m_logicalParentWindow = parentWindow;
if (parentWindow) {
if (QQuickMenuPopupWindow *pw = qobject_cast<QQuickMenuPopupWindow *>(parentWindow)) {
connect(pw, SIGNAL(popupDismissed()), this, SLOT(dismissPopup()));
connect(pw, SIGNAL(willBeDeletedLater()), this, SLOT(setToBeDeletedLater()));
} else {
connect(parentWindow, SIGNAL(destroyed()), this, SLOT(deleteLater()));
}
}
}
void QQuickMenuPopupWindow::setToBeDeletedLater()
{
deleteLater();
emit willBeDeletedLater();
}
void QQuickMenuPopupWindow::setGeometry(int posx, int posy, int w, int h)
{
QWindow *pw = transientParent();
if (!pw && parentItem())
pw = parentItem()->window();
if (!pw)
pw = this;
QRect g = pw->screen()->geometry();
if (posx + w > g.right()) {
if (qobject_cast<QQuickMenuPopupWindow *>(transientParent())) {
// reposition submenu window on the parent menu's left side
int submenuOverlap = pw->x() + pw->width() - posx;
posx -= pw->width() + w - 2 * submenuOverlap;
} else {
posx = g.right() - w;
}
} else {
posx = qMax(posx, g.left());
}
posy = qBound(g.top(), posy, g.bottom() - h);
QQuickWindow::setGeometry(posx, posy, w, h);
emit geometryChanged();
}
void QQuickMenuPopupWindow::updateSize()
{
const QQuickItem *contentItem = popupContentItem();
if (!contentItem)
return;
qreal x = m_initialPos.x();
qreal y = m_initialPos.y();
if (qGuiApp->layoutDirection() == Qt::RightToLeft)
x -= contentItem->width();
setGeometry(x, y, contentItem->width(), contentItem->height());
}
void QQuickMenuPopupWindow::updatePosition()
{
QPointF newPos = position() + m_oldItemPos - m_itemAt->position();
m_initialPos += m_oldItemPos - m_itemAt->position();
setGeometry(newPos.x(), newPos.y(), width(), height());
}
void QQuickMenuPopupWindow::exposeEvent(QExposeEvent *e)
{
// the popup will reposition at the last moment, so its
// initial position must be captured for updateSize().
m_initialPos = position();
if (m_logicalParentWindow && m_logicalParentWindow->parent()) {
// This must be a QQuickWindow embedded via createWindowContainer.
m_initialPos += m_logicalParentWindow->geometry().topLeft();
}
QQuickPopupWindow::exposeEvent(e);
if (isExposed())
updateSize();
}
QQuickMenu1 *QQuickMenuPopupWindow::menu() const
{
return m_menu;
}
bool QQuickMenuPopupWindow::shouldForwardEventAfterDismiss(QMouseEvent *e) const
{
// If the event falls inside this item the event should not be forwarded.
// For example for comboboxes or top menus of the menubar
QQuickMenuBar1 *mb = m_menu ? m_menu->menuBar() : Q_NULLPTR;
QQuickItem *item = mb && !mb->isNative() ? mb->contentItem() : menu()->visualItem();
QWindow *window = transientParent();
if (item && window && item->window() == window) {
QPointF pos = window->mapFromGlobal(mapToGlobal(e->pos()));
pos = item->mapFromScene(pos);
if (item->contains(pos))
return false;
}
#ifdef Q_OS_OSX
if (e->button() == Qt::RightButton)
return true;
#endif
#ifdef Q_OS_WIN
return true;
#endif
return false;
}
QT_END_NAMESPACE
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