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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickpopupwindow_p.h"
#include <qguiapplication.h>
#include <qpa/qwindowsysteminterface.h>
#include <QtQuick/qquickitem.h>
#include <QtQuick/private/qquickrendercontrol_p.h>
QT_BEGIN_NAMESPACE
QQuickPopupWindow::QQuickPopupWindow() :
QQuickWindow(), m_parentItem(0), m_contentItem(0),
m_mouseMoved(false), m_needsActivatedEvent(true),
m_dismissed(false)
{
setFlags(Qt::Popup);
connect(qApp, SIGNAL(applicationStateChanged(Qt::ApplicationState)),
this, SLOT(applicationStateChanged(Qt::ApplicationState)));
}
void QQuickPopupWindow::applicationStateChanged(Qt::ApplicationState state)
{
if (state != Qt::ApplicationActive)
dismissPopup();
}
void QQuickPopupWindow::show()
{
qreal posx = x();
qreal posy = y();
// transientParent may not be a QQuickWindow when embedding into widgets
if (QWindow *tp = transientParent()) {
if (m_parentItem) {
QPointF pos = m_parentItem->mapToItem(m_parentItem->window()->contentItem(), QPointF(posx, posy));
posx = pos.x();
posy = pos.y();
}
QPoint tlwOffset = tp->mapToGlobal(QPoint());
posx += tlwOffset.x();
posy += tlwOffset.y();
} else if (m_parentItem && m_parentItem->window()) {
QPoint offset;
QQuickWindow *quickWindow = m_parentItem->window();
QWindow *renderWindow = QQuickRenderControl::renderWindowFor(quickWindow, &offset);
QPointF pos = m_parentItem->mapToItem(quickWindow->contentItem(), QPointF(posx, posy));
posx = pos.x();
posy = pos.y();
QPoint parentWindowOffset = (renderWindow ? renderWindow : quickWindow)->mapToGlobal(QPoint());
posx += offset.x() + parentWindowOffset.x();
posy += offset.y() + parentWindowOffset.y();
}
QSize initialSize;
if (m_contentItem)
initialSize = QSize(m_contentItem->width(), m_contentItem->height());
if (!initialSize.isEmpty())
setGeometry(posx, posy, initialSize.width(), initialSize.height());
else
setPosition(posx, posy);
emit geometryChanged();
if (!qobject_cast<QQuickPopupWindow *>(transientParent())) { // No need for parent menu windows
if (QQuickWindow *w = qobject_cast<QQuickWindow *>(transientParent())) {
if (QQuickItem *mg = w->mouseGrabberItem())
mg->ungrabMouse();
} else if (m_parentItem && m_parentItem->window()) {
if (QQuickItem *mg = m_parentItem->window()->mouseGrabberItem())
mg->ungrabMouse();
}
}
QQuickWindow::show();
setMouseGrabEnabled(true); // Needs to be done after calling show()
setKeyboardGrabEnabled(true);
}
void QQuickPopupWindow::setParentItem(QQuickItem *item)
{
m_parentItem = item;
if (m_parentItem)
setTransientParent(m_parentItem->window());
}
void QQuickPopupWindow::setPopupContentItem(QQuickItem *contentItem)
{
if (!contentItem)
return;
contentItem->setParentItem(this->contentItem());
connect(contentItem, SIGNAL(widthChanged()), this, SLOT(updateSize()));
connect(contentItem, SIGNAL(heightChanged()), this, SLOT(updateSize()));
m_contentItem = contentItem;
}
void QQuickPopupWindow::updateSize()
{
setGeometry(x(), y(), popupContentItem()->width(), popupContentItem()->height());
emit geometryChanged();
}
void QQuickPopupWindow::dismissPopup()
{
m_dismissed = true;
emit popupDismissed();
close();
}
void QQuickPopupWindow::mouseMoveEvent(QMouseEvent *e)
{
QRect rect = QRect(QPoint(), size());
m_mouseMoved = true;
if (rect.contains(e->pos()))
QQuickWindow::mouseMoveEvent(e);
else
forwardEventToTransientParent(e);
}
void QQuickPopupWindow::mousePressEvent(QMouseEvent *e)
{
QRect rect = QRect(QPoint(), size());
if (rect.contains(e->pos()))
QQuickWindow::mousePressEvent(e);
else
forwardEventToTransientParent(e);
}
void QQuickPopupWindow::mouseReleaseEvent(QMouseEvent *e)
{
QRect rect = QRect(QPoint(), size());
if (rect.contains(e->pos())) {
if (m_mouseMoved) {
QMouseEvent pe = QMouseEvent(QEvent::MouseButtonPress, e->pos(), e->button(), e->buttons(), e->modifiers());
QQuickWindow::mousePressEvent(&pe);
if (!m_dismissed)
QQuickWindow::mouseReleaseEvent(e);
}
m_mouseMoved = true; // Initial mouse release counts as move.
} else {
forwardEventToTransientParent(e);
}
}
void QQuickPopupWindow::forwardEventToTransientParent(QMouseEvent *e)
{
if (!qobject_cast<QQuickPopupWindow*>(transientParent())
&& ((m_mouseMoved && e->type() == QEvent::MouseButtonRelease)
|| e->type() == QEvent::MouseButtonPress)) {
// Clicked outside any popup
dismissPopup();
} else if (transientParent()) {
QPoint parentPos = transientParent()->mapFromGlobal(mapToGlobal(e->pos()));
QMouseEvent pe = QMouseEvent(e->type(), parentPos, e->button(), e->buttons(), e->modifiers());
QGuiApplication::sendEvent(transientParent(), &pe);
}
}
void QQuickPopupWindow::exposeEvent(QExposeEvent *e)
{
if (isExposed() && m_needsActivatedEvent) {
m_needsActivatedEvent = false;
QWindowSystemInterface::handleWindowActivated(this, Qt::PopupFocusReason);
} else if (!isExposed() && !m_needsActivatedEvent) {
m_needsActivatedEvent = true;
if (QWindow *tp = transientParent())
QWindowSystemInterface::handleWindowActivated(tp, Qt::PopupFocusReason);
}
QQuickWindow::exposeEvent(e);
}
void QQuickPopupWindow::hideEvent(QHideEvent *e)
{
if (QWindow *tp = !m_needsActivatedEvent ? transientParent() : 0) {
m_needsActivatedEvent = true;
QWindowSystemInterface::handleWindowActivated(tp, Qt::PopupFocusReason);
}
QQuickWindow::hideEvent(e);
}
QT_END_NAMESPACE
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