efbe1c9664
This abstract class represents an object that receives drag and drop events. This roughly maps to some of DataDevice's receiving methods, but by being abstract also allows us to use the same code from xwayland in a manner transparent to all code paths. Preivous xwayland support with "proxy surfaces" have been removed. -- In future it will be extended to have the mouse move events, so that we can avoid spying on the seat both in dataDevice and kwin's internal filter
117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
/*
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SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-FileCopyrightText: 2020 David Edmundson <davidedmundson@kde.org>
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SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
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*/
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#pragma once
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#include <QObject>
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#include <KWaylandServer/kwaylandserver_export.h>
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#include "abstract_drop_handler.h"
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struct wl_client;
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struct wl_resource;
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namespace KWaylandServer
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{
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class DataDeviceManagerInterface;
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class DataOfferInterface;
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class DataSourceInterface;
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class AbstractDataSource;
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class SeatInterface;
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class SurfaceInterface;
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class DataDeviceInterfacePrivate;
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class DragAndDropIconPrivate;
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/**
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* The DragAndDropIcon class represents a drag-and-drop icon.
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*
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* Note that the lifetime of the drag-and-drop icon is bound to the lifetime of the underlying
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* icon surface.
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*/
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class KWAYLANDSERVER_EXPORT DragAndDropIcon : public QObject
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{
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Q_OBJECT
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public:
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~DragAndDropIcon() override;
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/**
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* Returns the position of the icon relative to the cursor's hotspot.
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*/
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QPoint position() const;
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/**
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* Returns the underlying icon surface. This function always returns a valid surface.
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*/
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SurfaceInterface *surface() const;
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private:
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explicit DragAndDropIcon(SurfaceInterface *surface);
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friend class DataDeviceInterfacePrivate;
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QScopedPointer<DragAndDropIconPrivate> d;
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};
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/**
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* @brief DataDeviceInterface allows clients to share data by copy-and-paste and drag-and-drop.
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*
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* The data device is per seat.
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* Copy-and-paste use the selection functions.
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*
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* Represents the Resource for the wl_data_device interface.
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*
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* @see SeatInterface
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* @see DataSourceInterface
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*/
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class KWAYLANDSERVER_EXPORT DataDeviceInterface : public AbstractDropHandler
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{
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Q_OBJECT
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public:
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virtual ~DataDeviceInterface();
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SeatInterface *seat() const;
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DataSourceInterface *selection() const;
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void sendSelection(KWaylandServer::AbstractDataSource *other);
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void sendClearSelection();
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/**
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* The event is sent when a drag-and-drop operation is ended because the implicit grab is removed.
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*/
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void drop() override;
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/**
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* Updates the SurfaceInterface to which drag motion events are sent.
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*
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* If a SurfaceInterface was registered in this DataDeviceInterface for drag motion events, it
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* will be sent a leave event.
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*
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* If @p surface is not null it will be sent a drag enter event.
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*
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* @param surface The SurfaceInterface which gets motion events
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* @param serial The serial to be used for enter/leave
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*/
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void updateDragTarget(SurfaceInterface *surface, quint32 serial) override;
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void updateProxy(SurfaceInterface *remote);
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wl_client *client();
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Q_SIGNALS:
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void aboutToBeDestroyed();
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void dragStarted(AbstractDataSource *source, SurfaceInterface *originSurface, quint32 serial, DragAndDropIcon *dragIcon);
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void selectionChanged(KWaylandServer::DataSourceInterface *);
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void selectionCleared();
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private:
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friend class DataDeviceManagerInterfacePrivate;
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explicit DataDeviceInterface(SeatInterface *seat, wl_resource *resource);
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QScopedPointer<DataDeviceInterfacePrivate> d;
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friend class DataDeviceInterfacePrivate;
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};
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}
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Q_DECLARE_METATYPE(KWaylandServer::DataDeviceInterface *)
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