File indexing completed on 2024-05-19 16:35:17

 /*
     SPDX-FileCopyrightText: 2020 David Edmundson <davidedmundson@kde.org>
     SPDX-FileCopyrightText: 2021 David Redondo <kde@david-redondo.de>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 #include "datacontroldevice_v1_interface.h"
 #include "datacontroldevicemanager_v1_interface.h"
 #include "datacontroloffer_v1_interface.h"
 #include "datacontrolsource_v1_interface.h"
 #include "display.h"
 #include "seat_interface.h"
 #include "seat_interface_p.h"
 #include "surface_interface.h"
 
 // Wayland
 #include <qwayland-server-wlr-data-control-unstable-v1.h>
 
 namespace KWaylandServer
 {
 class DataControlDeviceV1InterfacePrivate : public QtWaylandServer::zwlr_data_control_device_v1
 {
 public:
     DataControlDeviceV1InterfacePrivate(DataControlDeviceV1Interface *q, SeatInterface *seat, wl_resource *resource);
 
     DataControlOfferV1Interface *createDataOffer(AbstractDataSource *source);
 
     DataControlDeviceV1Interface *q;
     QPointer<SeatInterface> seat;
     QPointer<DataControlSourceV1Interface> selection;
     QPointer<DataControlSourceV1Interface> primarySelection;
 
 protected:
     void zwlr_data_control_device_v1_destroy_resource(Resource *resource) override;
     void zwlr_data_control_device_v1_set_selection(Resource *resource, wl_resource *source) override;
     void zwlr_data_control_device_v1_set_primary_selection(Resource *resource, struct ::wl_resource *source) override;
     void zwlr_data_control_device_v1_destroy(Resource *resource) override;
 };
 
 DataControlDeviceV1InterfacePrivate::DataControlDeviceV1InterfacePrivate(DataControlDeviceV1Interface *_q, SeatInterface *seat, wl_resource *resource)
     : QtWaylandServer::zwlr_data_control_device_v1(resource)
     , q(_q)
     , seat(seat)
 {
 }
 
 void DataControlDeviceV1InterfacePrivate::zwlr_data_control_device_v1_set_selection(Resource *resource, wl_resource *source)
 {
     DataControlSourceV1Interface *dataSource = nullptr;
 
     if (source) {
         dataSource = DataControlSourceV1Interface::get(source);
         Q_ASSERT(dataSource);
         if (dataSource == seat->selection() || dataSource == seat->primarySelection()) {
             wl_resource_post_error(resource->handle, error::error_used_source, "source given to set_selection was already used before");
             return;
         }
     }
     if (selection) {
         selection->cancel();
     }
     selection = dataSource;
     Q_EMIT q->selectionChanged(selection);
 }
 
 void DataControlDeviceV1InterfacePrivate::zwlr_data_control_device_v1_set_primary_selection(Resource *resource, wl_resource *source)
 {
     DataControlSourceV1Interface *dataSource = nullptr;
 
     if (source) {
         dataSource = DataControlSourceV1Interface::get(source);
         Q_ASSERT(dataSource);
         if (dataSource == seat->selection() || dataSource == seat->primarySelection()) {
             wl_resource_post_error(resource->handle, error::error_used_source, "source given to set_primary_selection was already used before");
             return;
         }
     }
     if (primarySelection) {
         primarySelection->cancel();
     }
     primarySelection = dataSource;
     Q_EMIT q->primarySelectionChanged(primarySelection);
 }
 
 void DataControlDeviceV1InterfacePrivate::zwlr_data_control_device_v1_destroy(QtWaylandServer::zwlr_data_control_device_v1::Resource *resource)
 {
     wl_resource_destroy(resource->handle);
 }
 
 DataControlOfferV1Interface *DataControlDeviceV1InterfacePrivate::createDataOffer(AbstractDataSource *source)
 {
     if (!source) {
         // a data offer can only exist together with a source
         return nullptr;
     }
 
     wl_resource *data_offer_resource = wl_resource_create(resource()->client(), &zwlr_data_control_offer_v1_interface, resource()->version(), 0);
     if (!data_offer_resource) {
         return nullptr;
     }
 
     DataControlOfferV1Interface *offer = new DataControlOfferV1Interface(source, data_offer_resource);
     send_data_offer(offer->resource());
     offer->sendAllOffers();
     return offer;
 }
 
 void DataControlDeviceV1InterfacePrivate::zwlr_data_control_device_v1_destroy_resource(QtWaylandServer::zwlr_data_control_device_v1::Resource *resource)
 {
     delete q;
 }
 
 DataControlDeviceV1Interface::DataControlDeviceV1Interface(SeatInterface *seat, wl_resource *resource)
     : QObject()
     , d(new DataControlDeviceV1InterfacePrivate(this, seat, resource))
 {
     SeatInterfacePrivate *seatPrivate = SeatInterfacePrivate::get(seat);
     seatPrivate->registerDataControlDevice(this);
 }
 
 DataControlDeviceV1Interface::~DataControlDeviceV1Interface() = default;
 
 SeatInterface *DataControlDeviceV1Interface::seat() const
 {
     return d->seat;
 }
 
 DataControlSourceV1Interface *DataControlDeviceV1Interface::selection() const
 {
     return d->selection;
 }
 
 DataControlSourceV1Interface *DataControlDeviceV1Interface::primarySelection() const
 {
     return d->primarySelection;
 }
 
 void DataControlDeviceV1Interface::sendSelection(AbstractDataSource *other)
 {
     DataControlOfferV1Interface *offer = d->createDataOffer(other);
     d->send_selection(offer ? offer->resource() : nullptr);
 }
 
 void DataControlDeviceV1Interface::sendPrimarySelection(KWaylandServer::AbstractDataSource *other)
 {
     if (d->resource()->version() >= ZWLR_DATA_CONTROL_DEVICE_V1_PRIMARY_SELECTION_SINCE_VERSION) {
         DataControlOfferV1Interface *offer = d->createDataOffer(other);
         d->send_primary_selection(offer ? offer->resource() : nullptr);
     }
 }
 }