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xwayland: Support cross DnD from Wayland (#8708)

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Adds support for drag-and-drop from Wayland clients to XWayland ones
This commit is contained in:
Vaxry 2024-12-15 00:37:17 +01:00 committed by GitHub
parent 9f7a96b997
commit db24964877
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GPG key ID: B5690EEEBB952194
10 changed files with 699 additions and 108 deletions
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30
src/managers/XWaylandManager.cpp
View file

@ -213,6 +213,36 @@ void CHyprXWaylandManager::setWindowFullscreen(PHLWINDOW pWindow, bool fullscree
pWindow->m_pXDGSurface->toplevel->setFullscreen(fullscreen); pWindow->m_pXDGSurface->toplevel->setFullscreen(fullscreen);
} }
Vector2D CHyprXWaylandManager::waylandToXWaylandCoords(const Vector2D& coord) {
static auto PXWLFORCESCALEZERO = CConfigValue<Hyprlang::INT>("xwayland:force_zero_scaling");
PHLMONITOR pMonitor = nullptr;
double bestDistance = __FLT_MAX__;
for (const auto& m : g_pCompositor->m_vMonitors) {
const auto SIZ = *PXWLFORCESCALEZERO ? m->vecTransformedSize : m->vecSize;
double distance = vecToRectDistanceSquared(coord, {m->vecPosition.x, m->vecPosition.y}, {m->vecPosition.x + SIZ.x - 1, m->vecPosition.y + SIZ.y - 1});
if (distance < bestDistance) {
bestDistance = distance;
pMonitor = m;
}
}
if (!pMonitor)
return Vector2D{};
// get local coords
Vector2D result = coord - pMonitor->vecPosition;
// if scaled, scale
if (*PXWLFORCESCALEZERO)
result *= pMonitor->scale;
// add pos
result += pMonitor->vecXWaylandPosition;
return result;
}
Vector2D CHyprXWaylandManager::xwaylandToWaylandCoords(const Vector2D& coord) { Vector2D CHyprXWaylandManager::xwaylandToWaylandCoords(const Vector2D& coord) {
static auto PXWLFORCESCALEZERO = CConfigValue<Hyprlang::INT>("xwayland:force_zero_scaling"); static auto PXWLFORCESCALEZERO = CConfigValue<Hyprlang::INT>("xwayland:force_zero_scaling");

1
src/managers/XWaylandManager.hpp
View file

@ -22,6 +22,7 @@ class CHyprXWaylandManager {
bool shouldBeFloated(PHLWINDOW, bool pending = false); bool shouldBeFloated(PHLWINDOW, bool pending = false);
void checkBorders(PHLWINDOW); void checkBorders(PHLWINDOW);
Vector2D xwaylandToWaylandCoords(const Vector2D&); Vector2D xwaylandToWaylandCoords(const Vector2D&);
Vector2D waylandToXWaylandCoords(const Vector2D&);
}; };
inline std::unique_ptr<CHyprXWaylandManager> g_pXWaylandManager; inline std::unique_ptr<CHyprXWaylandManager> g_pXWaylandManager;

143
src/protocols/core/DataDevice.cpp
View file

@ -6,6 +6,8 @@
#include "../../Compositor.hpp" #include "../../Compositor.hpp"
#include "Seat.hpp" #include "Seat.hpp"
#include "Compositor.hpp" #include "Compositor.hpp"
#include "../../xwayland/XWayland.hpp"
#include "../../xwayland/Server.hpp"
CWLDataOfferResource::CWLDataOfferResource(SP<CWlDataOffer> resource_, SP<IDataSource> source_) : source(source_), resource(resource_) { CWLDataOfferResource::CWLDataOfferResource(SP<CWlDataOffer> resource_, SP<IDataSource> source_) : source(source_), resource(resource_) {
if (!good()) if (!good())
@ -103,6 +105,22 @@ void CWLDataOfferResource::sendData() {
} }
} }
eDataSourceType CWLDataOfferResource::type() {
return DATA_SOURCE_TYPE_WAYLAND;
}
SP<CWLDataOfferResource> CWLDataOfferResource::getWayland() {
return self.lock();
}
SP<CX11DataOffer> CWLDataOfferResource::getX11() {
return nullptr;
}
SP<IDataSource> CWLDataOfferResource::getSource() {
return source.lock();
}
CWLDataSourceResource::CWLDataSourceResource(SP<CWlDataSource> resource_, SP<CWLDataDeviceResource> device_) : device(device_), resource(resource_) { CWLDataSourceResource::CWLDataSourceResource(SP<CWlDataSource> resource_, SP<CWLDataDeviceResource> device_) : device(device_), resource(resource_) {
if (!good()) if (!good())
return; return;
@ -209,6 +227,10 @@ uint32_t CWLDataSourceResource::actions() {
return supportedActions; return supportedActions;
} }
eDataSourceType CWLDataSourceResource::type() {
return DATA_SOURCE_TYPE_WAYLAND;
}
CWLDataDeviceResource::CWLDataDeviceResource(SP<CWlDataDevice> resource_) : resource(resource_) { CWLDataDeviceResource::CWLDataDeviceResource(SP<CWlDataDevice> resource_) : resource(resource_) {
if (!good()) if (!good())
return; return;
@ -260,15 +282,18 @@ wl_client* CWLDataDeviceResource::client() {
return pClient; return pClient;
} }
void CWLDataDeviceResource::sendDataOffer(SP<CWLDataOfferResource> offer) { void CWLDataDeviceResource::sendDataOffer(SP<IDataOffer> offer) {
if (offer) if (!offer)
resource->sendDataOffer(offer->resource.get());
else
resource->sendDataOfferRaw(nullptr); resource->sendDataOfferRaw(nullptr);
else if (const auto WL = offer->getWayland(); WL)
resource->sendDataOffer(WL->resource.get());
//FIXME: X11
} }
void CWLDataDeviceResource::sendEnter(uint32_t serial, SP<CWLSurfaceResource> surf, const Vector2D& local, SP<CWLDataOfferResource> offer) { void CWLDataDeviceResource::sendEnter(uint32_t serial, SP<CWLSurfaceResource> surf, const Vector2D& local, SP<IDataOffer> offer) {
resource->sendEnterRaw(serial, surf->getResource()->resource(), wl_fixed_from_double(local.x), wl_fixed_from_double(local.y), offer->resource->resource()); if (const auto WL = offer->getWayland(); WL)
resource->sendEnterRaw(serial, surf->getResource()->resource(), wl_fixed_from_double(local.x), wl_fixed_from_double(local.y), WL->resource->resource());
// FIXME: X11
} }
void CWLDataDeviceResource::sendLeave() { void CWLDataDeviceResource::sendLeave() {
@ -283,11 +308,23 @@ void CWLDataDeviceResource::sendDrop() {
resource->sendDrop(); resource->sendDrop();
} }
void CWLDataDeviceResource::sendSelection(SP<CWLDataOfferResource> offer) { void CWLDataDeviceResource::sendSelection(SP<IDataOffer> offer) {
if (!offer) if (!offer)
resource->sendSelectionRaw(nullptr); resource->sendSelectionRaw(nullptr);
else else if (const auto WL = offer->getWayland(); WL)
resource->sendSelection(offer->resource.get()); resource->sendSelection(WL->resource.get());
}
eDataSourceType CWLDataDeviceResource::type() {
return DATA_SOURCE_TYPE_WAYLAND;
}
SP<CWLDataDeviceResource> CWLDataDeviceResource::getWayland() {
return self.lock();
}
SP<CX11DataDevice> CWLDataDeviceResource::getX11() {
return nullptr;
} }
CWLDataDeviceManagerResource::CWLDataDeviceManagerResource(SP<CWlDataDeviceManager> resource_) : resource(resource_) { CWLDataDeviceManagerResource::CWLDataDeviceManagerResource(SP<CWlDataDeviceManager> resource_) : resource(resource_) {
@ -377,32 +414,53 @@ void CWLDataDeviceProtocol::destroyResource(CWLDataOfferResource* resource) {
std::erase_if(m_vOffers, [&](const auto& other) { return other.get() == resource; }); std::erase_if(m_vOffers, [&](const auto& other) { return other.get() == resource; });
} }
SP<CWLDataDeviceResource> CWLDataDeviceProtocol::dataDeviceForClient(wl_client* c) { SP<IDataDevice> CWLDataDeviceProtocol::dataDeviceForClient(wl_client* c) {
#ifndef NO_XWAYLAND
if (c == g_pXWayland->pServer->xwaylandClient)
return g_pXWayland->pWM->getDataDevice();
#endif
auto it = std::find_if(m_vDevices.begin(), m_vDevices.end(), [c](const auto& e) { return e->client() == c; }); auto it = std::find_if(m_vDevices.begin(), m_vDevices.end(), [c](const auto& e) { return e->client() == c; });
if (it == m_vDevices.end()) if (it == m_vDevices.end())
return nullptr; return nullptr;
return *it; return *it;
} }
void CWLDataDeviceProtocol::sendSelectionToDevice(SP<CWLDataDeviceResource> dev, SP<IDataSource> sel) { void CWLDataDeviceProtocol::sendSelectionToDevice(SP<IDataDevice> dev, SP<IDataSource> sel) {
if (!sel) { if (!sel) {
dev->sendSelection(nullptr); dev->sendSelection(nullptr);
return; return;
} }
const auto OFFER = m_vOffers.emplace_back(makeShared<CWLDataOfferResource>(makeShared<CWlDataOffer>(dev->resource->client(), dev->resource->version(), 0), sel)); SP<IDataOffer> offer;
if (const auto WL = dev->getWayland(); WL) {
const auto OFFER = m_vOffers.emplace_back(makeShared<CWLDataOfferResource>(makeShared<CWlDataOffer>(WL->resource->client(), WL->resource->version(), 0), sel));
if (!OFFER->good()) { if (!OFFER->good()) {
dev->resource->noMemory(); WL->resource->noMemory();
m_vOffers.pop_back(); m_vOffers.pop_back();
return; return;
} }
OFFER->source = sel;
OFFER->self = OFFER;
offer = OFFER;
}
#ifndef NO_XWAYLAND
else if (const auto X11 = dev->getX11(); X11)
offer = g_pXWayland->pWM->createX11DataOffer(g_pSeatManager->state.keyboardFocus.lock(), sel);
#endif
LOGM(LOG, "New offer {:x} for data source {:x}", (uintptr_t)OFFER.get(), (uintptr_t)sel.get()); if (!offer) {
LOGM(ERR, "No offer could be created in sendSelectionToDevice");
return;
}
dev->sendDataOffer(OFFER); LOGM(LOG, "New {} offer {:x} for data source {:x}", offer->type() == DATA_SOURCE_TYPE_WAYLAND ? "wayland" : "X11", (uintptr_t)offer.get(), (uintptr_t)sel.get());
OFFER->sendData();
dev->sendSelection(OFFER); dev->sendDataOffer(offer);
if (const auto WL = offer->getWayland(); WL)
WL->sendData();
dev->sendSelection(offer);
} }
void CWLDataDeviceProtocol::onDestroyDataSource(WP<CWLDataSourceResource> source) { void CWLDataDeviceProtocol::onDestroyDataSource(WP<CWLDataSourceResource> source) {
@ -424,7 +482,7 @@ void CWLDataDeviceProtocol::setSelection(SP<IDataSource> source) {
return; return;
auto DESTDEVICE = dataDeviceForClient(g_pSeatManager->state.keyboardFocusResource->client()); auto DESTDEVICE = dataDeviceForClient(g_pSeatManager->state.keyboardFocusResource->client());
if (DESTDEVICE) if (DESTDEVICE && DESTDEVICE->type() == DATA_SOURCE_TYPE_WAYLAND)
sendSelectionToDevice(DESTDEVICE, nullptr); sendSelectionToDevice(DESTDEVICE, nullptr);
return; return;
@ -442,6 +500,11 @@ void CWLDataDeviceProtocol::setSelection(SP<IDataSource> source) {
return; return;
} }
if (DESTDEVICE->type() != DATA_SOURCE_TYPE_WAYLAND) {
LOGM(LOG, "CWLDataDeviceProtocol::setSelection: ignoring X11 data device");
return;
}
sendSelectionToDevice(DESTDEVICE, source); sendSelectionToDevice(DESTDEVICE, source);
} }
@ -589,22 +652,38 @@ void CWLDataDeviceProtocol::updateDrag() {
if (!dnd.focusedDevice) if (!dnd.focusedDevice)
return; return;
// make a new offer SP<IDataOffer> offer;
const auto OFFER = m_vOffers.emplace_back(
makeShared<CWLDataOfferResource>(makeShared<CWlDataOffer>(dnd.focusedDevice->resource->client(), dnd.focusedDevice->resource->version(), 0), dnd.currentSource.lock()));
if (const auto WL = dnd.focusedDevice->getWayland(); WL) {
const auto OFFER =
m_vOffers.emplace_back(makeShared<CWLDataOfferResource>(makeShared<CWlDataOffer>(WL->resource->client(), WL->resource->version(), 0), dnd.currentSource.lock()));
if (!OFFER->good()) { if (!OFFER->good()) {
dnd.currentSource->resource->noMemory(); WL->resource->noMemory();
m_vOffers.pop_back(); m_vOffers.pop_back();
return; return;
} }
OFFER->source = dnd.currentSource;
OFFER->self = OFFER;
offer = OFFER;
}
#ifndef NO_XWAYLAND
else if (const auto X11 = dnd.focusedDevice->getX11(); X11)
offer = g_pXWayland->pWM->createX11DataOffer(g_pSeatManager->state.keyboardFocus.lock(), dnd.currentSource.lock());
#endif
LOGM(LOG, "New dnd offer {:x} for data source {:x}", (uintptr_t)OFFER.get(), (uintptr_t)dnd.currentSource.get()); if (!offer) {
LOGM(ERR, "No offer could be created in updateDrag");
return;
}
dnd.focusedDevice->sendDataOffer(OFFER); LOGM(LOG, "New {} dnd offer {:x} for data source {:x}", offer->type() == DATA_SOURCE_TYPE_WAYLAND ? "wayland" : "X11", (uintptr_t)offer.get(),
OFFER->sendData(); (uintptr_t)dnd.currentSource.get());
dnd.focusedDevice->sendDataOffer(offer);
if (const auto WL = offer->getWayland(); WL)
WL->sendData();
dnd.focusedDevice->sendEnter(wl_display_next_serial(g_pCompositor->m_sWLDisplay), g_pSeatManager->state.dndPointerFocus.lock(), dnd.focusedDevice->sendEnter(wl_display_next_serial(g_pCompositor->m_sWLDisplay), g_pSeatManager->state.dndPointerFocus.lock(),
g_pSeatManager->state.dndPointerFocus->current.size / 2.F, OFFER); g_pSeatManager->state.dndPointerFocus->current.size / 2.F, offer);
} }
void CWLDataDeviceProtocol::resetDndState() { void CWLDataDeviceProtocol::resetDndState() {
@ -651,6 +730,18 @@ bool CWLDataDeviceProtocol::wasDragSuccessful() {
return true; return true;
} }
#ifndef NO_XWAYLAND
for (auto const& o : g_pXWayland->pWM->dndDataOffers) {
if (o->dead || !o->source || !o->source->hasDnd())
continue;
if (o->source != dnd.currentSource)
continue;
return true;
}
#endif
return false; return false;
} }

39
src/protocols/core/DataDevice.hpp
View file

@ -26,7 +26,7 @@ class CWLDataOfferResource;
class CWLSurfaceResource; class CWLSurfaceResource;
class CMonitor; class CMonitor;
class CWLDataOfferResource { class CWLDataOfferResource : public IDataOffer {
public: public:
CWLDataOfferResource(SP<CWlDataOffer> resource_, SP<IDataSource> source_); CWLDataOfferResource(SP<CWlDataOffer> resource_, SP<IDataSource> source_);
~CWLDataOfferResource(); ~CWLDataOfferResource();
@ -34,7 +34,13 @@ class CWLDataOfferResource {
bool good(); bool good();
void sendData(); void sendData();
virtual eDataSourceType type();
virtual SP<CWLDataOfferResource> getWayland();
virtual SP<CX11DataOffer> getX11();
virtual SP<IDataSource> getSource();
WP<IDataSource> source; WP<IDataSource> source;
WP<CWLDataOfferResource> self;
bool dead = false; bool dead = false;
bool accepted = false; bool accepted = false;
@ -66,9 +72,9 @@ class CWLDataSourceResource : public IDataSource {
virtual void error(uint32_t code, const std::string& msg); virtual void error(uint32_t code, const std::string& msg);
virtual void sendDndFinished(); virtual void sendDndFinished();
virtual uint32_t actions(); // wl_data_device_manager.dnd_action virtual uint32_t actions(); // wl_data_device_manager.dnd_action
virtual eDataSourceType type();
void sendDndDropPerformed(); virtual void sendDndDropPerformed();
void sendDndAction(wl_data_device_manager_dnd_action a); virtual void sendDndAction(wl_data_device_manager_dnd_action a);
bool used = false; bool used = false;
bool dnd = false; bool dnd = false;
@ -88,19 +94,22 @@ class CWLDataSourceResource : public IDataSource {
friend class CWLDataDeviceProtocol; friend class CWLDataDeviceProtocol;
}; };
class CWLDataDeviceResource { class CWLDataDeviceResource : public IDataDevice {
public: public:
CWLDataDeviceResource(SP<CWlDataDevice> resource_); CWLDataDeviceResource(SP<CWlDataDevice> resource_);
bool good(); bool good();
wl_client* client(); wl_client* client();
void sendDataOffer(SP<CWLDataOfferResource> offer); virtual SP<CWLDataDeviceResource> getWayland();
void sendEnter(uint32_t serial, SP<CWLSurfaceResource> surf, const Vector2D& local, SP<CWLDataOfferResource> offer); virtual SP<CX11DataDevice> getX11();
void sendLeave(); virtual void sendDataOffer(SP<IDataOffer> offer);
void sendMotion(uint32_t timeMs, const Vector2D& local); virtual void sendEnter(uint32_t serial, SP<CWLSurfaceResource> surf, const Vector2D& local, SP<IDataOffer> offer);
void sendDrop(); virtual void sendLeave();
void sendSelection(SP<CWLDataOfferResource> offer); virtual void sendMotion(uint32_t timeMs, const Vector2D& local);
virtual void sendDrop();
virtual void sendSelection(SP<IDataOffer> offer);
virtual eDataSourceType type();
WP<CWLDataDeviceResource> self; WP<CWLDataDeviceResource> self;
@ -152,14 +161,14 @@ class CWLDataDeviceProtocol : public IWaylandProtocol {
void onDestroyDataSource(WP<CWLDataSourceResource> source); void onDestroyDataSource(WP<CWLDataSourceResource> source);
void setSelection(SP<IDataSource> source); void setSelection(SP<IDataSource> source);
void sendSelectionToDevice(SP<CWLDataDeviceResource> dev, SP<IDataSource> sel); void sendSelectionToDevice(SP<IDataDevice> dev, SP<IDataSource> sel);
void updateSelection(); void updateSelection();
void onKeyboardFocus(); void onKeyboardFocus();
void onDndPointerFocus(); void onDndPointerFocus();
struct { struct {
WP<CWLDataDeviceResource> focusedDevice; WP<IDataDevice> focusedDevice;
WP<CWLDataSourceResource> currentSource; WP<IDataSource> currentSource;
WP<CWLSurfaceResource> dndSurface; WP<CWLSurfaceResource> dndSurface;
WP<CWLSurfaceResource> originSurface; WP<CWLSurfaceResource> originSurface;
bool overriddenCursor = false; bool overriddenCursor = false;
@ -182,7 +191,7 @@ class CWLDataDeviceProtocol : public IWaylandProtocol {
bool wasDragSuccessful(); bool wasDragSuccessful();
// //
SP<CWLDataDeviceResource> dataDeviceForClient(wl_client*); SP<IDataDevice> dataDeviceForClient(wl_client*);
friend class CSeatManager; friend class CSeatManager;
friend class CWLDataDeviceManagerResource; friend class CWLDataDeviceManagerResource;

12
src/protocols/types/DataDevice.cpp
View file

@ -27,3 +27,15 @@ void IDataSource::sendDndFinished() {
uint32_t IDataSource::actions() { uint32_t IDataSource::actions() {
return 7; // all return 7; // all
} }
void IDataSource::sendDndDropPerformed() {
;
}
void IDataSource::sendDndAction(wl_data_device_manager_dnd_action a) {
;
}
void IDataOffer::markDead() {
;
}

39
src/protocols/types/DataDevice.hpp
View file

@ -4,6 +4,15 @@
#include <vector> #include <vector>
#include <cstdint> #include <cstdint>
#include "../../helpers/signal/Signal.hpp" #include "../../helpers/signal/Signal.hpp"
#include <wayland-server-protocol.h>
#include "../../helpers/memory/Memory.hpp"
#include "../../helpers/math/Math.hpp"
class CWLDataOfferResource;
class CX11DataOffer;
class CX11DataDevice;
class CWLDataDeviceResource;
class CWLSurfaceResource;
enum eDataSourceType : uint8_t { enum eDataSourceType : uint8_t {
DATA_SOURCE_TYPE_WAYLAND = 0, DATA_SOURCE_TYPE_WAYLAND = 0,
@ -27,6 +36,8 @@ class IDataSource {
virtual void error(uint32_t code, const std::string& msg) = 0; virtual void error(uint32_t code, const std::string& msg) = 0;
virtual eDataSourceType type(); virtual eDataSourceType type();
virtual uint32_t actions(); // wl_data_device_manager.dnd_action virtual uint32_t actions(); // wl_data_device_manager.dnd_action
virtual void sendDndDropPerformed();
virtual void sendDndAction(wl_data_device_manager_dnd_action a);
struct { struct {
CSignal destroy; CSignal destroy;
@ -35,3 +46,31 @@ class IDataSource {
private: private:
bool wasUsed = false; bool wasUsed = false;
}; };
class IDataOffer {
public:
IDataOffer() = default;
virtual ~IDataOffer() = default;
virtual eDataSourceType type() = 0;
virtual SP<CWLDataOfferResource> getWayland() = 0;
virtual SP<CX11DataOffer> getX11() = 0;
virtual SP<IDataSource> getSource() = 0;
virtual void markDead();
};
class IDataDevice {
public:
IDataDevice() = default;
virtual ~IDataDevice() = default;
virtual SP<CWLDataDeviceResource> getWayland() = 0;
virtual SP<CX11DataDevice> getX11() = 0;
virtual void sendDataOffer(SP<IDataOffer> offer) = 0;
virtual void sendEnter(uint32_t serial, SP<CWLSurfaceResource> surf, const Vector2D& local, SP<IDataOffer> offer) = 0;
virtual void sendLeave() = 0;
virtual void sendMotion(uint32_t timeMs, const Vector2D& local) = 0;
virtual void sendDrop() = 0;
virtual void sendSelection(SP<IDataOffer> offer) = 0;
virtual eDataSourceType type() = 0;
};

211
src/xwayland/Dnd.cpp Normal file
View file

@ -0,0 +1,211 @@
#include "Dnd.hpp"
#include "XWM.hpp"
#include "XWayland.hpp"
#include "Server.hpp"
#include "../managers/XWaylandManager.hpp"
#include "../desktop/WLSurface.hpp"
static xcb_atom_t dndActionToAtom(uint32_t actions) {
if (actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY)
return HYPRATOMS["XdndActionCopy"];
else if (actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE)
return HYPRATOMS["XdndActionMove"];
else if (actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK)
return HYPRATOMS["XdndActionAsk"];
return XCB_ATOM_NONE;
}
eDataSourceType CX11DataOffer::type() {
return DATA_SOURCE_TYPE_X11;
}
SP<CWLDataOfferResource> CX11DataOffer::getWayland() {
return nullptr;
}
SP<CX11DataOffer> CX11DataOffer::getX11() {
return self.lock();
}
SP<IDataSource> CX11DataOffer::getSource() {
return source.lock();
}
void CX11DataOffer::markDead() {
#ifndef NO_XWAYLAND
std::erase(g_pXWayland->pWM->dndDataOffers, self);
#endif
}
void CX11DataDevice::sendDataOffer(SP<IDataOffer> offer) {
; // no-op, I don't think this has an X equiv
}
void CX11DataDevice::sendEnter(uint32_t serial, SP<CWLSurfaceResource> surf, const Vector2D& local, SP<IDataOffer> offer) {
#ifndef NO_XWAYLAND
auto XSURF = g_pXWayland->pWM->windowForWayland(surf);
if (offer == lastOffer)
return;
if (!XSURF) {
Debug::log(ERR, "CX11DataDevice::sendEnter: No xwayland surface for destination");
return;
}
auto SOURCE = offer->getSource();
if (!SOURCE) {
Debug::log(ERR, "CX11DataDevice::sendEnter: No source");
return;
}
xcb_set_selection_owner(g_pXWayland->pWM->connection, g_pXWayland->pWM->dndSelection.window, HYPRATOMS["XdndSelection"], XCB_TIME_CURRENT_TIME);
xcb_client_message_data_t data = {0};
data.data32[0] = g_pXWayland->pWM->dndSelection.window;
data.data32[1] = XDND_VERSION << 24;
// let the client know it needs to check for DND_TYPE_LIST
data.data32[1] |= 1;
std::vector<xcb_atom_t> targets;
for (auto& mime : SOURCE->mimes()) {
targets.emplace_back(g_pXWayland->pWM->mimeToAtom(mime));
}
xcb_change_property(g_pXWayland->pWM->connection, XCB_PROP_MODE_REPLACE, g_pXWayland->pWM->dndSelection.window, HYPRATOMS["XdndTypeList"], XCB_ATOM_ATOM, 32, targets.size(),
targets.data());
g_pXWayland->pWM->sendDndEvent(surf, HYPRATOMS["XdndEnter"], data);
lastSurface = XSURF;
lastOffer = offer;
auto hlSurface = CWLSurface::fromResource(surf);
if (!hlSurface) {
Debug::log(ERR, "CX11DataDevice::sendEnter: Non desktop x surface?!");
lastSurfaceCoords = {};
return;
}
lastSurfaceCoords = hlSurface->getSurfaceBoxGlobal().value_or(CBox{}).pos();
#endif
}
void CX11DataDevice::sendLeave() {
#ifndef NO_XWAYLAND
if (!lastSurface)
return;
xcb_client_message_data_t data = {0};
data.data32[0] = g_pXWayland->pWM->dndSelection.window;
g_pXWayland->pWM->sendDndEvent(lastSurface->surface.lock(), HYPRATOMS["XdndLeave"], data);
lastSurface.reset();
lastOffer.reset();
xcb_set_selection_owner(g_pXWayland->pWM->connection, g_pXWayland->pWM->dndSelection.window, XCB_ATOM_NONE, XCB_TIME_CURRENT_TIME);
#endif
}
void CX11DataDevice::sendMotion(uint32_t timeMs, const Vector2D& local) {
#ifndef NO_XWAYLAND
if (!lastSurface || !lastOffer || !lastOffer->getSource())
return;
const auto XCOORDS = g_pXWaylandManager->waylandToXWaylandCoords(lastSurfaceCoords + local);
xcb_client_message_data_t data = {0};
data.data32[0] = g_pXWayland->pWM->dndSelection.window;
data.data32[2] = (((int32_t)XCOORDS.x) << 16) | (int32_t)XCOORDS.y;
data.data32[3] = timeMs;
data.data32[4] = dndActionToAtom(lastOffer->getSource()->actions());
g_pXWayland->pWM->sendDndEvent(lastSurface->surface.lock(), HYPRATOMS["XdndPosition"], data);
lastTime = timeMs;
#endif
}
void CX11DataDevice::sendDrop() {
#ifndef NO_XWAYLAND
if (!lastSurface || !lastOffer)
return;
// we don't have timeMs here, just send last time + 1
xcb_client_message_data_t data = {0};
data.data32[0] = g_pXWayland->pWM->dndSelection.window;
data.data32[2] = lastTime + 1;
g_pXWayland->pWM->sendDndEvent(lastSurface->surface.lock(), HYPRATOMS["XdndDrop"], data);
sendLeave();
#endif
}
void CX11DataDevice::sendSelection(SP<IDataOffer> offer) {
; // no-op. Selection is done separately.
}
eDataSourceType CX11DataDevice::type() {
return DATA_SOURCE_TYPE_X11;
}
SP<CWLDataDeviceResource> CX11DataDevice::getWayland() {
return nullptr;
}
SP<CX11DataDevice> CX11DataDevice::getX11() {
return self.lock();
}
std::vector<std::string> CX11DataSource::mimes() {
return mimeTypes;
}
void CX11DataSource::send(const std::string& mime, uint32_t fd) {
;
}
void CX11DataSource::accepted(const std::string& mime) {
;
}
void CX11DataSource::cancelled() {
;
}
bool CX11DataSource::hasDnd() {
return dnd;
}
bool CX11DataSource::dndDone() {
return dropped;
}
void CX11DataSource::error(uint32_t code, const std::string& msg) {
Debug::log(ERR, "CX11DataSource::error: this fn is a stub: code {} msg {}", code, msg);
}
void CX11DataSource::sendDndFinished() {
;
}
uint32_t CX11DataSource::actions() {
return supportedActions;
}
eDataSourceType CX11DataSource::type() {
return DATA_SOURCE_TYPE_X11;
}
void CX11DataSource::sendDndDropPerformed() {
;
}
void CX11DataSource::sendDndAction(wl_data_device_manager_dnd_action a) {
;
}

82
src/xwayland/Dnd.hpp Normal file
View file

@ -0,0 +1,82 @@
#pragma once
#include "../protocols/types/DataDevice.hpp"
#include <wayland-server-protocol.h>
#define XDND_VERSION 5
class CXWaylandSurface;
class CX11DataOffer : public IDataOffer {
public:
CX11DataOffer() = default;
~CX11DataOffer() = default;
virtual eDataSourceType type();
virtual SP<CWLDataOfferResource> getWayland();
virtual SP<CX11DataOffer> getX11();
virtual SP<IDataSource> getSource();
virtual void markDead();
WP<IDataSource> source;
WP<CX11DataOffer> self;
WP<CXWaylandSurface> xwaylandSurface;
bool dead = false;
bool accepted = false;
bool recvd = false;
uint32_t actions = 0;
};
class CX11DataSource : public IDataSource {
public:
CX11DataSource() = default;
~CX11DataSource() = default;
virtual std::vector<std::string> mimes();
virtual void send(const std::string& mime, uint32_t fd);
virtual void accepted(const std::string& mime);
virtual void cancelled();
virtual bool hasDnd();
virtual bool dndDone();
virtual void error(uint32_t code, const std::string& msg);
virtual void sendDndFinished();
virtual uint32_t actions(); // wl_data_device_manager.dnd_action
virtual eDataSourceType type();
virtual void sendDndDropPerformed();
virtual void sendDndAction(wl_data_device_manager_dnd_action a);
bool used = false;
bool dnd = true;
bool dndSuccess = false;
bool dropped = false;
WP<CX11DataSource> self;
std::vector<std::string> mimeTypes;
uint32_t supportedActions = 0;
};
class CX11DataDevice : public IDataDevice {
public:
CX11DataDevice() = default;
virtual SP<CWLDataDeviceResource> getWayland();
virtual SP<CX11DataDevice> getX11();
virtual void sendDataOffer(SP<IDataOffer> offer);
virtual void sendEnter(uint32_t serial, SP<CWLSurfaceResource> surf, const Vector2D& local, SP<IDataOffer> offer);
virtual void sendLeave();
virtual void sendMotion(uint32_t timeMs, const Vector2D& local);
virtual void sendDrop();
virtual void sendSelection(SP<IDataOffer> offer);
virtual eDataSourceType type();
WP<CX11DataDevice> self;
private:
WP<CXWaylandSurface> lastSurface;
WP<IDataOffer> lastOffer;
Vector2D lastSurfaceCoords;
uint32_t lastTime = 0;
};

147
src/xwayland/XWM.cpp
View file

@ -387,6 +387,28 @@ void CXWM::handleClientMessage(xcb_client_message_event_t* e) {
} }
} else if (e->type == HYPRATOMS["_NET_ACTIVE_WINDOW"]) { } else if (e->type == HYPRATOMS["_NET_ACTIVE_WINDOW"]) {
XSURF->events.activate.emit(); XSURF->events.activate.emit();
} else if (e->type == HYPRATOMS["XdndStatus"]) {
if (dndDataOffers.empty() || !dndDataOffers.at(0)->getSource()) {
Debug::log(TRACE, "[xwm] Rejecting XdndStatus message: nothing to get");
return;
}
xcb_client_message_data_t* data = &e->data;
const bool ACCEPTED = data->data32[1] & 1;
if (ACCEPTED)
dndDataOffers.at(0)->getSource()->accepted("");
Debug::log(LOG, "[xwm] XdndStatus: accepted: {}");
} else if (e->type == HYPRATOMS["XdndFinished"]) {
if (dndDataOffers.empty() || !dndDataOffers.at(0)->getSource()) {
Debug::log(TRACE, "[xwm] Rejecting XdndFinished message: nothing to get");
return;
}
dndDataOffers.at(0)->getSource()->sendDndFinished();
Debug::log(LOG, "[xwm] XdndFinished");
} else { } else {
Debug::log(TRACE, "[xwm] Unhandled message prop {} -> {}", e->type, propName); Debug::log(TRACE, "[xwm] Unhandled message prop {} -> {}", e->type, propName);
return; return;
@ -545,22 +567,22 @@ std::string CXWM::mimeFromAtom(xcb_atom_t atom) {
void CXWM::handleSelectionNotify(xcb_selection_notify_event_t* e) { void CXWM::handleSelectionNotify(xcb_selection_notify_event_t* e) {
Debug::log(TRACE, "[xwm] Selection notify for {} prop {} target {}", e->selection, e->property, e->target); Debug::log(TRACE, "[xwm] Selection notify for {} prop {} target {}", e->selection, e->property, e->target);
SXSelection& sel = clipboard; SXSelection* sel = getSelection(e->selection);
if (e->property == XCB_ATOM_NONE) { if (e->property == XCB_ATOM_NONE) {
if (sel.transfer) { if (sel->transfer) {
Debug::log(TRACE, "[xwm] converting selection failed"); Debug::log(TRACE, "[xwm] converting selection failed");
sel.transfer.reset(); sel->transfer.reset();
} }
} else if (e->target == HYPRATOMS["TARGETS"]) { } else if (e->target == HYPRATOMS["TARGETS"] && sel == &clipboard) {
if (!focusedSurface) { if (!focusedSurface) {
Debug::log(TRACE, "[xwm] denying access to write to clipboard because no X client is in focus"); Debug::log(TRACE, "[xwm] denying access to write to clipboard because no X client is in focus");
return; return;
} }
setClipboardToWayland(sel); setClipboardToWayland(*sel);
} else if (sel.transfer) } else if (sel->transfer)
getTransferData(sel); getTransferData(*sel);
} }
bool CXWM::handleSelectionPropertyNotify(xcb_property_notify_event_t* e) { bool CXWM::handleSelectionPropertyNotify(xcb_property_notify_event_t* e) {
@ -571,13 +593,22 @@ bool CXWM::handleSelectionPropertyNotify(xcb_property_notify_event_t* e) {
return false; return false;
} }
SXSelection* CXWM::getSelection(xcb_atom_t atom) {
if (atom == HYPRATOMS["CLIPBOARD"])
return &clipboard;
else if (atom == HYPRATOMS["XdndSelection"])
return &dndSelection;
return nullptr;
}
void CXWM::handleSelectionRequest(xcb_selection_request_event_t* e) { void CXWM::handleSelectionRequest(xcb_selection_request_event_t* e) {
Debug::log(TRACE, "[xwm] Selection request for {} prop {} target {} time {} requestor {} selection {}", e->selection, e->property, e->target, e->time, e->requestor, Debug::log(TRACE, "[xwm] Selection request for {} prop {} target {} time {} requestor {} selection {}", e->selection, e->property, e->target, e->time, e->requestor,
e->selection); e->selection);
SXSelection& sel = clipboard; SXSelection* sel = getSelection(e->selection);
if (!g_pSeatManager->selection.currentSelection) { if (!sel) {
Debug::log(ERR, "[xwm] No selection"); Debug::log(ERR, "[xwm] No selection");
selectionSendNotify(e, false); selectionSendNotify(e, false);
return; return;
@ -588,8 +619,8 @@ void CXWM::handleSelectionRequest(xcb_selection_request_event_t* e) {
return; return;
} }
if (sel.window != e->owner && e->time != XCB_CURRENT_TIME && e->time < sel.timestamp) { if (sel->window != e->owner && e->time != XCB_CURRENT_TIME && e->time < sel->timestamp) {
Debug::log(ERR, "[xwm] outdated selection request. Time {} < {}", e->time, sel.timestamp); Debug::log(ERR, "[xwm] outdated selection request. Time {} < {}", e->time, sel->timestamp);
selectionSendNotify(e, false); selectionSendNotify(e, false);
return; return;
} }
@ -615,12 +646,11 @@ void CXWM::handleSelectionRequest(xcb_selection_request_event_t* e) {
xcb_change_property(connection, XCB_PROP_MODE_REPLACE, e->requestor, e->property, XCB_ATOM_ATOM, 32, atoms.size(), atoms.data()); xcb_change_property(connection, XCB_PROP_MODE_REPLACE, e->requestor, e->property, XCB_ATOM_ATOM, 32, atoms.size(), atoms.data());
selectionSendNotify(e, true); selectionSendNotify(e, true);
} else if (e->target == HYPRATOMS["TIMESTAMP"]) { } else if (e->target == HYPRATOMS["TIMESTAMP"]) {
xcb_change_property(connection, XCB_PROP_MODE_REPLACE, e->requestor, e->property, XCB_ATOM_INTEGER, 32, 1, &sel.timestamp); xcb_change_property(connection, XCB_PROP_MODE_REPLACE, e->requestor, e->property, XCB_ATOM_INTEGER, 32, 1, &sel->timestamp);
selectionSendNotify(e, true); selectionSendNotify(e, true);
} else if (e->target == HYPRATOMS["DELETE"]) { } else if (e->target == HYPRATOMS["DELETE"]) {
selectionSendNotify(e, true); selectionSendNotify(e, true);
} else { } else {
std::string mime = mimeFromAtom(e->target); std::string mime = mimeFromAtom(e->target);
if (mime == "INVALID") { if (mime == "INVALID") {
@ -629,7 +659,7 @@ void CXWM::handleSelectionRequest(xcb_selection_request_event_t* e) {
return; return;
} }
if (!sel.sendData(e, mime)) { if (!sel->sendData(e, mime)) {
Debug::log(LOG, "[xwm] Failed to send selection :("); Debug::log(LOG, "[xwm] Failed to send selection :(");
selectionSendNotify(e, false); selectionSendNotify(e, false);
return; return;
@ -641,24 +671,27 @@ bool CXWM::handleSelectionXFixesNotify(xcb_xfixes_selection_notify_event_t* e) {
Debug::log(TRACE, "[xwm] Selection xfixes notify for {}", e->selection); Debug::log(TRACE, "[xwm] Selection xfixes notify for {}", e->selection);
// IMPORTANT: mind the g_pSeatManager below // IMPORTANT: mind the g_pSeatManager below
SXSelection& sel = clipboard; SXSelection* sel = getSelection(e->selection);
if (sel == &dndSelection)
return true;
if (e->owner == XCB_WINDOW_NONE) { if (e->owner == XCB_WINDOW_NONE) {
if (sel.owner != sel.window) if (sel->owner != sel->window && sel == &clipboard)
g_pSeatManager->setCurrentSelection(nullptr); g_pSeatManager->setCurrentSelection(nullptr);
sel.owner = 0; sel->owner = 0;
return true; return true;
} }
sel.owner = e->owner; sel->owner = e->owner;
if (sel.owner == sel.window) { if (sel->owner == sel->window) {
sel.timestamp = e->timestamp; sel->timestamp = e->timestamp;
return true; return true;
} }
xcb_convert_selection(connection, sel.window, HYPRATOMS["CLIPBOARD"], HYPRATOMS["TARGETS"], HYPRATOMS["_WL_SELECTION"], e->timestamp); xcb_convert_selection(connection, sel->window, HYPRATOMS["CLIPBOARD"], HYPRATOMS["TARGETS"], HYPRATOMS["_WL_SELECTION"], e->timestamp);
xcb_flush(connection); xcb_flush(connection);
return true; return true;
@ -854,6 +887,8 @@ CXWM::CXWM() : connection(g_pXWayland->pServer->xwmFDs[0]) {
return; return;
} }
dndDataDevice->self = dndDataDevice;
xcb_screen_iterator_t screen_iterator = xcb_setup_roots_iterator(xcb_get_setup(connection)); xcb_screen_iterator_t screen_iterator = xcb_setup_roots_iterator(xcb_get_setup(connection));
screen = screen_iterator.data; screen = screen_iterator.data;
@ -1015,6 +1050,15 @@ void CXWM::readWindowData(SP<CXWaylandSurface> surf) {
} }
} }
SP<CXWaylandSurface> CXWM::windowForWayland(SP<CWLSurfaceResource> surf) {
for (auto& s : surfaces) {
if (s->surface == surf)
return s;
}
return nullptr;
}
void CXWM::associate(SP<CXWaylandSurface> surf, SP<CWLSurfaceResource> wlSurf) { void CXWM::associate(SP<CXWaylandSurface> surf, SP<CWLSurfaceResource> wlSurf) {
if (surf->surface) if (surf->surface)
return; return;
@ -1068,7 +1112,7 @@ void CXWM::updateClientList() {
} }
bool CXWM::isWMWindow(xcb_window_t w) { bool CXWM::isWMWindow(xcb_window_t w) {
return w == wmWindow || w == clipboard.window; return w == wmWindow || w == clipboard.window || w == dndSelection.window;
} }
void CXWM::updateOverrideRedirect(SP<CXWaylandSurface> surf, bool overrideRedirect) { void CXWM::updateOverrideRedirect(SP<CXWaylandSurface> surf, bool overrideRedirect) {
@ -1090,6 +1134,13 @@ void CXWM::initSelection() {
xcb_xfixes_select_selection_input(connection, clipboard.window, HYPRATOMS["CLIPBOARD"], mask2); xcb_xfixes_select_selection_input(connection, clipboard.window, HYPRATOMS["CLIPBOARD"], mask2);
clipboard.listeners.setSelection = g_pSeatManager->events.setSelection.registerListener([this](std::any d) { clipboard.onSelection(); }); clipboard.listeners.setSelection = g_pSeatManager->events.setSelection.registerListener([this](std::any d) { clipboard.onSelection(); });
dndSelection.window = xcb_generate_id(connection);
xcb_create_window(connection, XCB_COPY_FROM_PARENT, dndSelection.window, screen->root, 0, 0, 8192, 8192, 0, XCB_WINDOW_CLASS_INPUT_ONLY, screen->root_visual, XCB_CW_EVENT_MASK,
mask);
uint32_t val1 = XDND_VERSION;
xcb_change_property(connection, XCB_PROP_MODE_REPLACE, dndSelection.window, HYPRATOMS["XdndAware"], XCB_ATOM_ATOM, 32, 1, &val1);
} }
void CXWM::setClipboardToWayland(SXSelection& sel) { void CXWM::setClipboardToWayland(SXSelection& sel) {
@ -1172,6 +1223,52 @@ void CXWM::setCursor(unsigned char* pixData, uint32_t stride, const Vector2D& si
xcb_flush(connection); xcb_flush(connection);
} }
void CXWM::sendDndEvent(SP<CWLSurfaceResource> destination, xcb_atom_t type, xcb_client_message_data_t& data) {
auto XSURF = windowForWayland(destination);
if (!XSURF) {
Debug::log(ERR, "[xwm] No xwayland surface for destination in sendDndEvent");
return;
}
xcb_client_message_event_t event = {
.response_type = XCB_CLIENT_MESSAGE,
.format = 32,
.sequence = 0,
.window = XSURF->xID,
.type = type,
.data = data,
};
xcb_send_event(g_pXWayland->pWM->connection,
0, // propagate
XSURF->xID, XCB_EVENT_MASK_NO_EVENT, (const char*)&event);
xcb_flush(g_pXWayland->pWM->connection);
}
SP<CX11DataDevice> CXWM::getDataDevice() {
return dndDataDevice;
}
SP<IDataOffer> CXWM::createX11DataOffer(SP<CWLSurfaceResource> surf, SP<IDataSource> source) {
auto XSURF = windowForWayland(surf);
if (!XSURF) {
Debug::log(ERR, "[xwm] No xwayland surface for destination in createX11DataOffer");
return nullptr;
}
// invalidate old
g_pXWayland->pWM->dndDataOffers.clear();
auto offer = dndDataOffers.emplace_back(makeShared<CX11DataOffer>());
offer->self = offer;
offer->xwaylandSurface = XSURF;
offer->source = source;
return offer;
}
void SXSelection::onSelection() { void SXSelection::onSelection() {
if (g_pSeatManager->selection.currentSelection && g_pSeatManager->selection.currentSelection->type() == DATA_SOURCE_TYPE_X11) if (g_pSeatManager->selection.currentSelection && g_pSeatManager->selection.currentSelection->type() == DATA_SOURCE_TYPE_X11)
return; return;
@ -1220,7 +1317,11 @@ static int readDataSource(int fd, uint32_t mask, void* data) {
} }
bool SXSelection::sendData(xcb_selection_request_event_t* e, std::string mime) { bool SXSelection::sendData(xcb_selection_request_event_t* e, std::string mime) {
WP<IDataSource> selection = g_pSeatManager->selection.currentSelection; WP<IDataSource> selection;
if (this == &g_pXWayland->pWM->clipboard)
selection = g_pSeatManager->selection.currentSelection;
else if (!g_pXWayland->pWM->dndDataOffers.empty())
selection = g_pXWayland->pWM->dndDataOffers.at(0)->getSource();
if (!selection) if (!selection)
return false; return false;

15
src/xwayland/XWM.hpp
View file

@ -2,6 +2,7 @@
#include "../macros.hpp" #include "../macros.hpp"
#include "XDataSource.hpp" #include "XDataSource.hpp"
#include "Dnd.hpp"
#include "../helpers/memory/Memory.hpp" #include "../helpers/memory/Memory.hpp"
#include "../helpers/signal/Signal.hpp" #include "../helpers/signal/Signal.hpp"
@ -105,6 +106,8 @@ class CXWM {
~CXWM(); ~CXWM();
int onEvent(int fd, uint32_t mask); int onEvent(int fd, uint32_t mask);
SP<CX11DataDevice> getDataDevice();
SP<IDataOffer> createX11DataOffer(SP<CWLSurfaceResource> surf, SP<IDataSource> source);
private: private:
void setCursor(unsigned char* pixData, uint32_t stride, const Vector2D& size, const Vector2D& hotspot); void setCursor(unsigned char* pixData, uint32_t stride, const Vector2D& size, const Vector2D& hotspot);
@ -128,6 +131,7 @@ class CXWM {
void sendWMMessage(SP<CXWaylandSurface> surf, xcb_client_message_data_t* data, uint32_t mask); void sendWMMessage(SP<CXWaylandSurface> surf, xcb_client_message_data_t* data, uint32_t mask);
SP<CXWaylandSurface> windowForXID(xcb_window_t wid); SP<CXWaylandSurface> windowForXID(xcb_window_t wid);
SP<CXWaylandSurface> windowForWayland(SP<CWLSurfaceResource> surf);
void readWindowData(SP<CXWaylandSurface> surf); void readWindowData(SP<CXWaylandSurface> surf);
void associate(SP<CXWaylandSurface> surf, SP<CWLSurfaceResource> wlSurf); void associate(SP<CXWaylandSurface> surf, SP<CWLSurfaceResource> wlSurf);
@ -135,6 +139,8 @@ class CXWM {
void updateClientList(); void updateClientList();
void sendDndEvent(SP<CWLSurfaceResource> destination, xcb_atom_t type, xcb_client_message_data_t& data);
// event handlers // event handlers
void handleCreate(xcb_create_notify_event_t* e); void handleCreate(xcb_create_notify_event_t* e);
void handleDestroy(xcb_destroy_notify_event_t* e); void handleDestroy(xcb_destroy_notify_event_t* e);
@ -163,6 +169,8 @@ class CXWM {
std::string getAtomName(uint32_t atom); std::string getAtomName(uint32_t atom);
void readProp(SP<CXWaylandSurface> XSURF, uint32_t atom, xcb_get_property_reply_t* reply); void readProp(SP<CXWaylandSurface> XSURF, uint32_t atom, xcb_get_property_reply_t* reply);
SXSelection* getSelection(xcb_atom_t atom);
// //
CXCBConnection connection; CXCBConnection connection;
xcb_errors_context_t* errors = nullptr; xcb_errors_context_t* errors = nullptr;
@ -191,6 +199,9 @@ class CXWM {
uint64_t lastFocusSeq = 0; uint64_t lastFocusSeq = 0;
SXSelection clipboard; SXSelection clipboard;
SXSelection dndSelection;
SP<CX11DataDevice> dndDataDevice = makeShared<CX11DataDevice>();
std::vector<SP<CX11DataOffer>> dndDataOffers;
struct { struct {
CHyprSignalListener newWLSurface; CHyprSignalListener newWLSurface;
@ -200,6 +211,10 @@ class CXWM {
friend class CXWaylandSurface; friend class CXWaylandSurface;
friend class CXWayland; friend class CXWayland;
friend class CXDataSource; friend class CXDataSource;
friend class CX11DataDevice;
friend class CX11DataSource;
friend class CX11DataOffer;
friend class CWLDataDeviceProtocol;
friend struct SXSelection; friend struct SXSelection;
friend struct SXTransfer; friend struct SXTransfer;
}; };