03a4800677
Add libportal clipboard handling to the remote desktop. Supports both directions (server to Wayland client paste, and copy from the Wayland client back to the server) for UTF-8 text, plain text, and PNG/BMP images. The shared mime-type table, BMP/DIB and PNG encode/decode helpers, and portal selection read/write live in a new PortalClipboard helper used by both PortalInputCapture and PortalRemoteDesktop. If the portal returns a restored RemoteDesktop session without clipboard enabled (a token persisted before clipboard support existed), discard the restore token and reconnect so the user gets a fresh permission dialog. Otherwise the session would loop with a clipboard-less token forever.
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/*
|
|
* Deskflow -- mouse and keyboard sharing utility
|
|
* SPDX-FileCopyrightText: (C) 2026 Synergy App Ltd
|
|
* SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "deskflow/IClipboard.h"
|
|
|
|
#include <QByteArray>
|
|
|
|
#include <libportal/portal.h>
|
|
|
|
namespace deskflow {
|
|
|
|
class EiClipboard;
|
|
|
|
class PortalClipboard
|
|
{
|
|
public:
|
|
struct SupportedMime
|
|
{
|
|
const char *mime;
|
|
IClipboard::Format format;
|
|
};
|
|
|
|
// Listed in preference order: richer formats first.
|
|
static constexpr SupportedMime kSupportedMimes[] = {
|
|
{"image/png", IClipboard::Format::Bitmap},
|
|
{"text/plain;charset=utf-8", IClipboard::Format::Text},
|
|
{"text/plain", IClipboard::Format::Text},
|
|
};
|
|
|
|
static constexpr int kReadTimeoutMs = 200;
|
|
static constexpr int kWriteTimeoutMs = 200;
|
|
static constexpr qint64 kChunkBytes = 64 * 1024;
|
|
|
|
static QByteArray formatMimeTypes(const char *const *mimeTypes);
|
|
static const SupportedMime *findSupportedMime(const char *mime);
|
|
static const SupportedMime *pickSupportedMime(const char *const *available);
|
|
static QByteArray encodeFormat(IClipboard::Format format, const QByteArray &data);
|
|
static QByteArray decodeFormat(IClipboard::Format format, const QByteArray &bytes);
|
|
static QByteArray readSelectionBytes(XdpSession *session, const char *mime, qint64 maxBytes);
|
|
|
|
/// Advertise the cache's formats to the portal selection.
|
|
static void claimOwnership(EiClipboard *cache, XdpSession *session);
|
|
|
|
/// Respond to a selection-transfer signal by writing the cache's bytes for
|
|
/// \p mime to the portal-provided fd. Always calls write_done.
|
|
static void serveSelectionTransfer(EiClipboard *cache, XdpSession *session, const char *mime, uint32_t serial);
|
|
|
|
/// Read every supported format offered by the portal into the cache.
|
|
/// Returns true if any data was deposited.
|
|
static bool
|
|
readSelectionIntoCache(EiClipboard *cache, XdpSession *session, const char *const *mimeTypes, qint64 maxBytes);
|
|
|
|
private:
|
|
static QByteArray dibToBmp(const QByteArray &dib);
|
|
static QByteArray bmpToDib(const QByteArray &bmp);
|
|
};
|
|
|
|
} // namespace deskflow
|