Revision control
++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:critical reason:network-protocol
++
++ #include "qwldatadevice_p.h"
++
++ #include "qwldatasource_p.h"
++ #include "qwldataoffer_p.h"
++ #include "qwaylandsurface_p.h"
++ #include "qwldatadevicemanager_p.h"
++
++ #if QT_CONFIG(draganddrop)
++ #include "qwaylanddrag.h"
++ #endif
++ #include "qwaylandview.h"
++ #include <QtWaylandCompositor/QWaylandClient>
++ #include <QtWaylandCompositor/private/qwaylandcompositor_p.h>
++ #include <QtWaylandCompositor/private/qwaylandseat_p.h>
++ #include <QtWaylandCompositor/private/qwaylandpointer_p.h>
++
++ #include <QtCore/QPointF>
++ #include <QDebug>
++
++ QT_BEGIN_NAMESPACE
++
++ namespace QtWayland {
++
++ DataDevice::DataDevice(QWaylandSeat *seat)
++ : m_compositor(seat->compositor())
++ , m_seat(seat)
++ {
++ }
++
++ void DataDevice::setFocus(QWaylandClient *focusClient)
++ {
++ if (!focusClient)
++ return;
++
++ Resource *resource = resourceMap().value(focusClient->client());
++
++ if (!resource)
++ return;
++
++ if (m_selectionSource) {
++ DataOffer *offer = new DataOffer(m_selectionSource, resource);
++ send_selection(resource->handle, offer->resource()->handle);
++ }
++ }
++
++ void DataDevice::sourceDestroyed(DataSource *source)
++ {
++ if (m_selectionSource == source)
++ m_selectionSource = nullptr;
++
++ if (m_dragDataSource == source)
++ m_dragDataSource = nullptr;
++ }
++
++ #if QT_CONFIG(draganddrop)
++ void DataDevice::setDragFocus(QWaylandSurface *focus, const QPointF &localPosition)
++ {
++ if (m_dragFocusResource) {
++ send_leave(m_dragFocusResource->handle);
++ m_dragFocus = nullptr;
++ m_dragFocusResource = nullptr;
++ }
++
++ if (!focus)
++ return;
++
++ if (!m_dragDataSource && m_dragClient != focus->waylandClient())
++ return;
++
++ Resource *resource = resourceMap().value(focus->waylandClient());
++
++ if (!resource)
++ return;
++
++ uint32_t serial = m_compositor->nextSerial();
++
++ DataOffer *offer = m_dragDataSource ? new DataOffer(m_dragDataSource, resource) : nullptr;
++
++ if (m_dragDataSource && !offer)
++ return;
++
++ if (offer) {
++ send_enter(resource->handle, serial, focus->resource(),
++ wl_fixed_from_double(localPosition.x()), wl_fixed_from_double(localPosition.y()),
++ offer->resource()->handle);
++ }
++
++ m_dragFocus = focus;
++ m_dragFocusResource = resource;
++ }
++
++ QWaylandSurface *DataDevice::dragIcon() const
++ {
++ return m_dragIcon;
++ }
++
++ QWaylandSurface *DataDevice::dragOrigin() const
++ {
++ return m_dragOrigin;
++ }
++
++ void DataDevice::dragMove(QWaylandSurface *target, const QPointF &pos)
++ {
++ if (target != m_dragFocus)
++ setDragFocus(target, pos);
++ if (!target || !m_dragFocusResource)
++ return;
++ uint time = m_compositor->currentTimeMsecs(); //### should be serial
++ send_motion(m_dragFocusResource->handle, time,
++ wl_fixed_from_double(pos.x()), wl_fixed_from_double(pos.y()));
++ }
++
++ void DataDevice::drop()
++ {
++ if (m_dragFocusResource) {
++ send_drop(m_dragFocusResource->handle);
++ setDragFocus(nullptr, QPoint());
++ } else if (m_dragDataSource) {
++ m_dragDataSource->cancel();
++ }
++ m_dragOrigin = nullptr;
++ setDragIcon(nullptr);
++ }
++
++ void DataDevice::cancelDrag()
++ {
++ setDragFocus(nullptr, QPoint());
++ }
++
++ void DataDevice::data_device_start_drag(Resource *resource, struct ::wl_resource *source, struct ::wl_resource *origin, struct ::wl_resource *icon, uint32_t serial)
++ {
++ m_dragClient = resource->client();
++ m_dragDataSource = source ? DataSource::fromResource(source) : nullptr;
++ if (m_dragDataSource)
++ m_dragDataSource->setDevice(this);
++ m_dragOrigin = QWaylandSurface::fromResource(origin);
++ QWaylandDrag *drag = m_seat->drag();
++ setDragIcon(icon ? QWaylandSurface::fromResource(icon) : nullptr);
++ Q_EMIT drag->dragStarted();
++ Q_EMIT m_dragOrigin->dragStarted(drag);
++
++ Q_UNUSED(serial);
++ //### need to verify that we have an implicit grab with this serial
++ }
++
++ void DataDevice::data_device_destroy_resource(Resource *resource)
++ {
++ if (m_dragFocusResource == resource) {
++ m_dragFocusResource = nullptr;
++ m_dragFocus = nullptr;
++ }
++ }
++
++ void DataDevice::setDragIcon(QWaylandSurface *icon)
++ {
++ if (icon == m_dragIcon)
++ return;
++ m_dragIcon = icon;
++ Q_EMIT m_seat->drag()->iconChanged();
++ }
++ #endif // QT_CONFIG(draganddrop)
++
++ void DataDevice::data_device_set_selection(Resource *, struct ::wl_resource *source, uint32_t serial)
++ {
++ Q_UNUSED(serial);
++
++ DataSource *dataSource = source ? DataSource::fromResource(source) : nullptr;
++
++ if (m_selectionSource)
++ m_selectionSource->cancel();
++
++ m_selectionSource = dataSource;
++ QWaylandCompositorPrivate::get(m_compositor)->dataDeviceManager()->setCurrentSelectionSource(m_selectionSource);
++ if (m_selectionSource)
++ m_selectionSource->setDevice(this);
++
++ QWaylandClient *focusClient = m_seat->keyboard()->focusClient();
++ Resource *resource = focusClient ? resourceMap().value(focusClient->client()) : 0;
++
++ if (resource && m_selectionSource) {
++ DataOffer *offer = new DataOffer(m_selectionSource, resource);
++ send_selection(resource->handle, offer->resource()->handle);
++ } else if (resource) {
++ send_selection(resource->handle, nullptr);
++ }
++ }
++
++
++ }
++
++ QT_END_NAMESPACE