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-rw-r--r--src/templates/qquickoverlay.cpp280
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diff --git a/src/templates/qquickoverlay.cpp b/src/templates/qquickoverlay.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the Qt Labs Templates module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL3$
-** 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 http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
-** Software Foundation and appearing in the file LICENSE.GPL included in
-** the packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 2.0 requirements will be
-** met: http://www.gnu.org/licenses/gpl-2.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qquickoverlay_p.h"
-#include "qquickpopup_p_p.h"
-#include "qquickdrawer_p.h"
-#include <QtQml/qqmlinfo.h>
-#include <QtQml/qqmlproperty.h>
-#include <QtQuick/private/qquickitem_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class QQuickOverlayPrivate : public QQuickItemPrivate
-{
- Q_DECLARE_PUBLIC(QQuickOverlay)
-
-public:
- QQuickOverlayPrivate();
-
- void popupAboutToShow();
- void popupAboutToHide();
- void drawerPositionChange();
- void resizeBackground();
-
- QQuickItem *background;
- QVector<QQuickDrawer *> drawers;
- QVector<QQuickPopup *> popups;
- int modalPopups;
-};
-
-void QQuickOverlayPrivate::popupAboutToShow()
-{
- Q_Q(QQuickOverlay);
- if (!background)
- return;
-
- QQuickPopup *popup = qobject_cast<QQuickPopup *>(q->sender());
- if (!popup || !popup->isModal())
- return;
-
- // use QQmlProperty instead of QQuickItem::setOpacity() to trigger QML Behaviors
- QQmlProperty::write(background, QStringLiteral("opacity"), 1.0);
-}
-
-void QQuickOverlayPrivate::popupAboutToHide()
-{
- Q_Q(QQuickOverlay);
- if (!background || modalPopups > 1)
- return;
-
- QQuickPopup *popup = qobject_cast<QQuickPopup *>(q->sender());
- if (!popup || !popup->isModal())
- return;
-
- // use QQmlProperty instead of QQuickItem::setOpacity() to trigger QML Behaviors
- QQmlProperty::write(background, QStringLiteral("opacity"), 0.0);
-}
-
-void QQuickOverlayPrivate::drawerPositionChange()
-{
- Q_Q(QQuickOverlay);
- QQuickDrawer *drawer = qobject_cast<QQuickDrawer *>(q->sender());
- if (!background || !drawer || modalPopups > 0)
- return;
-
- // call QQuickItem::setOpacity() directly to avoid triggering QML Behaviors
- // which would make the fading feel laggy compared to the drawer movement
- background->setOpacity(drawer->position());
-}
-
-void QQuickOverlayPrivate::resizeBackground()
-{
- Q_Q(QQuickOverlay);
- background->setWidth(q->width());
- background->setHeight(q->height());
-}
-
-QQuickOverlayPrivate::QQuickOverlayPrivate() :
- background(Q_NULLPTR),
- modalPopups(0)
-{
-}
-
-QQuickOverlay::QQuickOverlay(QQuickItem *parent)
- : QQuickItem(*(new QQuickOverlayPrivate), parent)
-{
- setAcceptedMouseButtons(Qt::AllButtons);
- setFiltersChildMouseEvents(true);
- setVisible(false);
-}
-
-
-QQuickItem *QQuickOverlay::background() const
-{
- Q_D(const QQuickOverlay);
- return d->background;
-}
-
-void QQuickOverlay::setBackground(QQuickItem *background)
-{
- Q_D(QQuickOverlay);
- if (d->background != background) {
- delete d->background;
- d->background = background;
- if (background) {
- background->setOpacity(0.0);
- background->setParentItem(this);
- if (qFuzzyIsNull(background->z()))
- background->setZ(-1);
- if (isComponentComplete())
- d->resizeBackground();
- }
- emit backgroundChanged();
- }
-}
-
-void QQuickOverlay::itemChange(ItemChange change, const ItemChangeData &data)
-{
- Q_D(QQuickOverlay);
- QQuickItem::itemChange(change, data);
-
- QQuickPopup *popup = Q_NULLPTR;
- if (change == ItemChildAddedChange || change == ItemChildRemovedChange) {
- QQuickDrawer *drawer = qobject_cast<QQuickDrawer *>(data.item);
- if (drawer) {
- if (change == ItemChildAddedChange) {
- QObjectPrivate::connect(drawer, &QQuickDrawer::positionChanged, d, &QQuickOverlayPrivate::drawerPositionChange);
- d->drawers.append(drawer);
- } else {
- QObjectPrivate::disconnect(drawer, &QQuickDrawer::positionChanged, d, &QQuickOverlayPrivate::drawerPositionChange);
- d->drawers.removeOne(drawer);
- }
- } else {
- popup = qobject_cast<QQuickPopup *>(data.item->parent());
- }
- setVisible(!childItems().isEmpty());
- }
- if (!popup)
- return;
-
- if (change == ItemChildAddedChange) {
- d->popups.append(popup);
- if (popup->isModal())
- ++d->modalPopups;
-
- QObjectPrivate::connect(popup, &QQuickPopup::aboutToShow, d, &QQuickOverlayPrivate::popupAboutToShow);
- QObjectPrivate::connect(popup, &QQuickPopup::aboutToHide, d, &QQuickOverlayPrivate::popupAboutToHide);
- } else if (change == ItemChildRemovedChange) {
- d->popups.removeOne(popup);
- if (popup->isModal())
- --d->modalPopups;
-
- QObjectPrivate::disconnect(popup, &QQuickPopup::aboutToShow, d, &QQuickOverlayPrivate::popupAboutToShow);
- QObjectPrivate::disconnect(popup, &QQuickPopup::aboutToHide, d, &QQuickOverlayPrivate::popupAboutToHide);
- }
-}
-
-void QQuickOverlay::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
-{
- Q_D(QQuickOverlay);
- QQuickItem::geometryChanged(newGeometry, oldGeometry);
- if (d->background)
- d->resizeBackground();
-}
-
-void QQuickOverlay::keyPressEvent(QKeyEvent *event)
-{
- Q_D(QQuickOverlay);
- event->setAccepted(d->modalPopups > 0);
-}
-
-void QQuickOverlay::keyReleaseEvent(QKeyEvent *event)
-{
- Q_D(QQuickOverlay);
- event->setAccepted(d->modalPopups > 0);
-}
-
-void QQuickOverlay::mousePressEvent(QMouseEvent *event)
-{
- Q_D(QQuickOverlay);
- event->setAccepted(d->modalPopups > 0);
- emit pressed();
-
- for (int i = d->popups.count() - 1; i >= 0; --i) {
- if (QQuickPopupPrivate::get(d->popups.at(i))->tryClose(this, event))
- break;
- }
-}
-
-void QQuickOverlay::mouseMoveEvent(QMouseEvent *event)
-{
- Q_D(QQuickOverlay);
- event->setAccepted(d->modalPopups > 0);
-}
-
-void QQuickOverlay::mouseReleaseEvent(QMouseEvent *event)
-{
- Q_D(QQuickOverlay);
- event->setAccepted(d->modalPopups > 0);
- emit released();
-
- for (int i = d->popups.count() - 1; i >= 0; --i) {
- if (QQuickPopupPrivate::get(d->popups.at(i))->tryClose(this, event))
- break;
- }
-}
-
-void QQuickOverlay::wheelEvent(QWheelEvent *event)
-{
- Q_D(QQuickOverlay);
- event->setAccepted(d->modalPopups > 0);
-}
-
-bool QQuickOverlay::childMouseEventFilter(QQuickItem *item, QEvent *event)
-{
- Q_D(QQuickOverlay);
- if (d->modalPopups == 0)
- return false;
- // TODO Filter touch events
- if (event->type() != QEvent::MouseButtonPress)
- return false;
- while (item->parentItem() != this)
- item = item->parentItem();
-
- bool modalBlocked = false;
- const QQuickItemPrivate *priv = QQuickItemPrivate::get(this);
- const QList<QQuickItem *> &sortedChildren = priv->paintOrderChildItems();
- for (int i = sortedChildren.count() - 1; i >= 0; --i) {
- QQuickItem *popupItem = sortedChildren[i];
- if (popupItem == item)
- break;
-
- QQuickPopup *popup = qobject_cast<QQuickPopup *>(popupItem->parent());
- if (popup) {
- QQuickPopup::ClosePolicy policy = popup->closePolicy();
- if (policy.testFlag(QQuickPopup::OnPressOutside) || policy.testFlag(QQuickPopup::OnPressOutsideParent))
- popup->close();
-
- if (!modalBlocked && popup->isModal())
- modalBlocked = true;
- }
- }
-
- return modalBlocked;
-}
-
-QT_END_NAMESPACE
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 01:26:25 +0000