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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtWaylandCompositor 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 "qwaylandquickwlshellsurfaceitem.h"
#include "qwaylandquickwlshellsurfaceitem_p.h"
#include <QtWaylandCompositor/QWaylandCompositor>
#include <QtWaylandCompositor/QWaylandInputDevice>
QT_BEGIN_NAMESPACE
/*!
* \qmltype WlShellSurfaceItem
* \inqmlmodule QtWayland.Compositor
* \brief An item representing a WlShellSurface.
*
* This type can be used to render wl_shell_surfaces as part of a Qt Quick scene.
* It handles moving and resizing triggered by clicking on the window decorations.
*/
/*!
* \class QWaylandQuickWlShellSurfaceItem
* \inmodule QtWaylandCompositor
* \brief A Qt Quick item for QWaylandWlShellSurface.
*
* This class can be used to create Qt Quick items representing wl_shell_surfaces.
* It handles moving and resizing triggered by clicking on the window decorations.
*
* \sa QWaylandQuickItem
*/
/*!
* Constructs a QWaylandQuickWlShellSurfaceItem with the given \a parent.
*/
QWaylandQuickWlShellSurfaceItem::QWaylandQuickWlShellSurfaceItem(QQuickItem *parent)
: QWaylandQuickItem(*new QWaylandQuickWlShellSurfaceItemPrivate(), parent)
{
}
/*!
* \internal
*/
QWaylandQuickWlShellSurfaceItem::QWaylandQuickWlShellSurfaceItem(QWaylandQuickWlShellSurfaceItemPrivate &dd, QQuickItem *parent)
: QWaylandQuickItem(dd, parent)
{
}
/*!
* \qmlproperty object QtWaylandCompositor::WlShellSurfaceItem::shellSurface
*
* This property holds the wl_shell_surface rendered by this WlShellSurfaceItem.
*/
/*!
* \property QWaylandQuickWlShellSurfaceItem::shellSurface
*
* This property holds the wl_shell_surface rendered by this QWaylandQuickWlShellSurfaceItem.
*/
QWaylandWlShellSurface *QWaylandQuickWlShellSurfaceItem::shellSurface() const
{
Q_D(const QWaylandQuickWlShellSurfaceItem);
return d->shellSurface;
}
void QWaylandQuickWlShellSurfaceItem::setShellSurface(QWaylandWlShellSurface *shellSurface)
{
Q_D(QWaylandQuickWlShellSurfaceItem);
if (shellSurface == d->shellSurface)
return;
if (d->shellSurface) {
disconnect(d->shellSurface, &QWaylandWlShellSurface::startMove, this, &QWaylandQuickWlShellSurfaceItem::handleStartMove);
disconnect(d->shellSurface, &QWaylandWlShellSurface::startResize, this, &QWaylandQuickWlShellSurfaceItem::handleStartResize);
}
d->shellSurface = shellSurface;
if (d->shellSurface) {
connect(d->shellSurface, &QWaylandWlShellSurface::startMove, this, &QWaylandQuickWlShellSurfaceItem::handleStartMove);
connect(d->shellSurface, &QWaylandWlShellSurface::startResize, this, &QWaylandQuickWlShellSurfaceItem::handleStartResize);
}
emit shellSurfaceChanged();
}
/*!
* \internal
* \property QWaylandQuickWlShellSurfaceItem::moveItem
*
* This property holds the move item for this QWaylandQuickWlShellSurfaceItem.
*/
QQuickItem *QWaylandQuickWlShellSurfaceItem::moveItem() const
{
Q_D(const QWaylandQuickWlShellSurfaceItem);
return d->moveItem;
}
void QWaylandQuickWlShellSurfaceItem::setMoveItem(QQuickItem *moveItem)
{
Q_D(QWaylandQuickWlShellSurfaceItem);
if (d->moveItem == moveItem)
return;
d->moveItem = moveItem;
moveItemChanged();
}
/*!
* \internal
*/
void QWaylandQuickWlShellSurfaceItem::handleStartMove(QWaylandInputDevice *inputDevice)
{
Q_D(QWaylandQuickWlShellSurfaceItem);
d->grabberState = QWaylandQuickWlShellSurfaceItemPrivate::MoveState;
d->moveState.inputDevice = inputDevice;
d->moveState.initialized = false;
}
/*!
* \internal
*/
void QWaylandQuickWlShellSurfaceItem::handleStartResize(QWaylandInputDevice *inputDevice, QWaylandWlShellSurface::ResizeEdge edges)
{
Q_D(QWaylandQuickWlShellSurfaceItem);
d->grabberState = QWaylandQuickWlShellSurfaceItemPrivate::ResizeState;
d->resizeState.inputDevice = inputDevice;
d->resizeState.resizeEdges = edges;
d->resizeState.initialSize = surface()->size();
d->resizeState.initialized = false;
}
/*!
* \internal
*/
void QWaylandQuickWlShellSurfaceItem::adjustOffsetForNextFrame(const QPointF &offset)
{
Q_D(QWaylandQuickWlShellSurfaceItem);
QQuickItem *moveItem = d->moveItem ? d->moveItem : this;
moveItem->setPosition(moveItem->position() + offset);
}
/*!
* \internal
*/
void QWaylandQuickWlShellSurfaceItem::mouseMoveEvent(QMouseEvent *event)
{
Q_D(QWaylandQuickWlShellSurfaceItem);
if (d->grabberState == QWaylandQuickWlShellSurfaceItemPrivate::ResizeState) {
Q_ASSERT(d->resizeState.inputDevice == compositor()->inputDeviceFor(event));
if (!d->resizeState.initialized) {
d->resizeState.initialMousePos = event->windowPos();
d->resizeState.initialized = true;
return;
}
QPointF delta = event->windowPos() - d->resizeState.initialMousePos;
QSize newSize = shellSurface()->sizeForResize(d->resizeState.initialSize, delta, d->resizeState.resizeEdges);
shellSurface()->sendConfigure(newSize, d->resizeState.resizeEdges);
} else if (d->grabberState == QWaylandQuickWlShellSurfaceItemPrivate::MoveState) {
Q_ASSERT(d->moveState.inputDevice == compositor()->inputDeviceFor(event));
QQuickItem *moveItem = d->moveItem ? d->moveItem : this;
if (!d->moveState.initialized) {
d->moveState.initialOffset = moveItem->mapFromItem(Q_NULLPTR, event->windowPos());
d->moveState.initialized = true;
return;
}
if (!moveItem->parentItem())
return;
QPointF parentPos = moveItem->parentItem()->mapFromItem(Q_NULLPTR, event->windowPos());
moveItem->setPosition(parentPos - d->moveState.initialOffset);
} else {
QWaylandQuickItem::mouseMoveEvent(event);
}
}
/*!
* \internal
*/
void QWaylandQuickWlShellSurfaceItem::mouseReleaseEvent(QMouseEvent *event)
{
Q_D(QWaylandQuickWlShellSurfaceItem);
if (d->grabberState != QWaylandQuickWlShellSurfaceItemPrivate::DefaultState) {
d->grabberState = QWaylandQuickWlShellSurfaceItemPrivate::DefaultState;
return;
}
QWaylandQuickItem::mouseReleaseEvent(event);
}
/*!
* \internal
*/
void QWaylandQuickWlShellSurfaceItem::surfaceChangedEvent(QWaylandSurface *newSurface, QWaylandSurface *oldSurface)
{
if (oldSurface)
disconnect(oldSurface, &QWaylandSurface::offsetForNextFrame, this, &QWaylandQuickWlShellSurfaceItem::adjustOffsetForNextFrame);
if (newSurface)
connect(newSurface, &QWaylandSurface::offsetForNextFrame, this, &QWaylandQuickWlShellSurfaceItem::adjustOffsetForNextFrame);
}
/*!
* \internal
*/
void QWaylandQuickWlShellSurfaceItem::componentComplete()
{
Q_D(QWaylandQuickWlShellSurfaceItem);
if (!d->shellSurface)
setShellSurface(new QWaylandWlShellSurface());
QWaylandQuickItem::componentComplete();
}
QT_END_NAMESPACE
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