wlr-data-device: move to hyprland impl

src/managers/ProtocolManager.cpp

@@ -29,6 +29,7 @@
 #include "../protocols/LayerShell.hpp"
 #include "../protocols/PresentationTime.hpp"
 #include "../protocols/XDGShell.hpp"
+#include "../protocols/DataDeviceWlr.hpp"
 
 #include "../protocols/core/Seat.hpp"
 #include "../protocols/core/DataDevice.hpp"
@@ -69,6 +70,7 @@ CProtocolManager::CProtocolManager() {
     PROTO::layerShell          = std::make_unique<CLayerShellProtocol>(&zwlr_layer_shell_v1_interface, 5, "LayerShell");
     PROTO::presentation        = std::make_unique<CPresentationProtocol>(&wp_presentation_interface, 1, "Presentation");
     PROTO::xdgShell            = std::make_unique<CXDGShellProtocol>(&xdg_wm_base_interface, 6, "XDGShell");
+    PROTO::dataWlr             = std::make_unique<CDataDeviceWLRProtocol>(&zwlr_data_control_manager_v1_interface, 2, "DataDeviceWlr");
 
     // Old protocol implementations.
     // TODO: rewrite them to use hyprwayland-scanner.

src/managers/SeatManager.cpp

@@ -1,6 +1,7 @@
 #include "SeatManager.hpp"
 #include "../protocols/core/Seat.hpp"
 #include "../protocols/core/DataDevice.hpp"
+#include "../protocols/DataDeviceWlr.hpp"
 #include "../Compositor.hpp"
 #include "../devices/IKeyboard.hpp"
 #include <algorithm>
@@ -446,6 +447,7 @@ void CSeatManager::setCurrentSelection(SP<IDataSource> source) {
     if (source) {
         selection.destroySelection = source->events.destroy.registerListener([this](std::any d) { setCurrentSelection(nullptr); });
         PROTO::data->setSelection(source);
+        PROTO::dataWlr->setSelection(source);
     }
 }
 

src/protocols/DataDeviceWlr.cpp

@@ -0,0 +1,310 @@
+#include "DataDeviceWlr.hpp"
+#include <algorithm>
+#include "../managers/SeatManager.hpp"
+#include "core/Seat.hpp"
+
+#define LOGM PROTO::dataWlr->protoLog
+
+CWLRDataOffer::CWLRDataOffer(SP<CZwlrDataControlOfferV1> resource_, SP<IDataSource> source_) : source(source_), resource(resource_) {
+    if (!good())
+        return;
+
+    resource->setDestroy([this](CZwlrDataControlOfferV1* r) { PROTO::dataWlr->destroyResource(this); });
+    resource->setOnDestroy([this](CZwlrDataControlOfferV1* r) { PROTO::dataWlr->destroyResource(this); });
+
+    resource->setReceive([this](CZwlrDataControlOfferV1* r, const char* mime, int32_t fd) {
+        if (!source) {
+            LOGM(WARN, "Possible bug: Receive on an offer w/o a source");
+            close(fd);
+            return;
+        }
+
+        if (dead) {
+            LOGM(WARN, "Possible bug: Receive on an offer that's dead");
+            close(fd);
+            return;
+        }
+
+        LOGM(LOG, "Offer {:x} asks to send data from source {:x}", (uintptr_t)this, (uintptr_t)source.get());
+
+        source->send(mime, fd);
+    });
+}
+
+bool CWLRDataOffer::good() {
+    return resource->resource();
+}
+
+void CWLRDataOffer::sendData() {
+    if (!source)
+        return;
+
+    for (auto& m : source->mimes()) {
+        resource->sendOffer(m.c_str());
+    }
+}
+
+CWLRDataSource::CWLRDataSource(SP<CZwlrDataControlSourceV1> resource_, SP<CWLRDataDevice> device_) : device(device_), resource(resource_) {
+    if (!good())
+        return;
+
+    resource->setData(this);
+
+    resource->setDestroy([this](CZwlrDataControlSourceV1* r) {
+        events.destroy.emit();
+        PROTO::dataWlr->destroyResource(this);
+    });
+    resource->setOnDestroy([this](CZwlrDataControlSourceV1* r) {
+        events.destroy.emit();
+        PROTO::dataWlr->destroyResource(this);
+    });
+
+    resource->setOffer([this](CZwlrDataControlSourceV1* r, const char* mime) { mimeTypes.push_back(mime); });
+}
+
+CWLRDataSource::~CWLRDataSource() {
+    events.destroy.emit();
+}
+
+SP<CWLRDataSource> CWLRDataSource::fromResource(wl_resource* res) {
+    auto data = (CWLRDataSource*)(((CZwlrDataControlSourceV1*)wl_resource_get_user_data(res))->data());
+    return data ? data->self.lock() : nullptr;
+}
+
+bool CWLRDataSource::good() {
+    return resource->resource();
+}
+
+std::vector<std::string> CWLRDataSource::mimes() {
+    return mimeTypes;
+}
+
+void CWLRDataSource::send(const std::string& mime, uint32_t fd) {
+    if (std::find(mimeTypes.begin(), mimeTypes.end(), mime) == mimeTypes.end()) {
+        LOGM(ERR, "Compositor/App bug: CWLRDataSource::sendAskSend with non-existent mime");
+        close(fd);
+        return;
+    }
+
+    resource->sendSend(mime.c_str(), fd);
+    close(fd);
+}
+
+void CWLRDataSource::accepted(const std::string& mime) {
+    if (std::find(mimeTypes.begin(), mimeTypes.end(), mime) == mimeTypes.end())
+        LOGM(ERR, "Compositor/App bug: CWLRDataSource::sendAccepted with non-existent mime");
+
+    // wlr has no accepted
+}
+
+void CWLRDataSource::cancelled() {
+    resource->sendCancelled();
+}
+
+void CWLRDataSource::error(uint32_t code, const std::string& msg) {
+    resource->error(code, msg);
+}
+
+CWLRDataDevice::CWLRDataDevice(SP<CZwlrDataControlDeviceV1> resource_) : resource(resource_) {
+    if (!good())
+        return;
+
+    pClient = resource->client();
+
+    resource->setDestroy([this](CZwlrDataControlDeviceV1* r) { PROTO::dataWlr->destroyResource(this); });
+    resource->setOnDestroy([this](CZwlrDataControlDeviceV1* r) { PROTO::dataWlr->destroyResource(this); });
+
+    resource->setSetSelection([this](CZwlrDataControlDeviceV1* r, wl_resource* sourceR) {
+        auto source = sourceR ? CWLRDataSource::fromResource(sourceR) : CSharedPointer<CWLRDataSource>{};
+        if (!source) {
+            LOGM(LOG, "wlr reset selection received");
+            g_pSeatManager->setCurrentSelection(nullptr);
+            return;
+        }
+
+        if (source && source->used())
+            LOGM(WARN, "setSelection on a used resource. By protocol, this is a violation, but firefox et al insist on doing this.");
+
+        source->markUsed();
+
+        LOGM(LOG, "wlr manager requests selection to {:x}", (uintptr_t)source.get());
+        g_pSeatManager->setCurrentSelection(source);
+    });
+
+    resource->setSetPrimarySelection([this](CZwlrDataControlDeviceV1* r, wl_resource* sourceR) {
+        auto source = sourceR ? CWLRDataSource::fromResource(sourceR) : CSharedPointer<CWLRDataSource>{};
+        if (!source) {
+            LOGM(LOG, "wlr reset primary selection received");
+            g_pSeatManager->setCurrentSelection(nullptr);
+            return;
+        }
+
+        if (source && source->used())
+            LOGM(WARN, "setSelection on a used resource. By protocol, this is a violation, but firefox et al insist on doing this.");
+
+        source->markUsed();
+
+        LOGM(LOG, "wlr manager requests primary selection to {:x}", (uintptr_t)source.get());
+        g_pSeatManager->setCurrentSelection(source);
+    });
+}
+
+bool CWLRDataDevice::good() {
+    return resource->resource();
+}
+
+wl_client* CWLRDataDevice::client() {
+    return pClient;
+}
+
+void CWLRDataDevice::sendInitialSelections() {
+    PROTO::dataWlr->sendSelectionToDevice(self.lock(), g_pSeatManager->selection.currentSelection.lock(), false);
+    PROTO::dataWlr->sendSelectionToDevice(self.lock(), g_pSeatManager->selection.currentPrimarySelection.lock(), true);
+}
+
+void CWLRDataDevice::sendDataOffer(SP<CWLRDataOffer> offer) {
+    resource->sendDataOffer(offer->resource.get());
+}
+
+void CWLRDataDevice::sendSelection(SP<CWLRDataOffer> selection) {
+    resource->sendSelection(selection->resource.get());
+}
+
+CWLRDataControlManagerResource::CWLRDataControlManagerResource(SP<CZwlrDataControlManagerV1> resource_) : resource(resource_) {
+    if (!good())
+        return;
+
+    resource->setDestroy([this](CZwlrDataControlManagerV1* r) { PROTO::dataWlr->destroyResource(this); });
+    resource->setOnDestroy([this](CZwlrDataControlManagerV1* r) { PROTO::dataWlr->destroyResource(this); });
+
+    resource->setGetDataDevice([this](CZwlrDataControlManagerV1* r, uint32_t id, wl_resource* seat) {
+        const auto RESOURCE = PROTO::dataWlr->m_vDevices.emplace_back(makeShared<CWLRDataDevice>(makeShared<CZwlrDataControlDeviceV1>(r->client(), r->version(), id)));
+
+        if (!RESOURCE->good()) {
+            r->noMemory();
+            PROTO::dataWlr->m_vDevices.pop_back();
+            return;
+        }
+
+        RESOURCE->self = RESOURCE;
+        device         = RESOURCE;
+
+        for (auto& s : sources) {
+            if (!s)
+                continue;
+            s->device = RESOURCE;
+        }
+
+        RESOURCE->sendInitialSelections();
+
+        LOGM(LOG, "New wlr data device bound at {:x}", (uintptr_t)RESOURCE.get());
+    });
+
+    resource->setCreateDataSource([this](CZwlrDataControlManagerV1* r, uint32_t id) {
+        std::erase_if(sources, [](const auto& e) { return e.expired(); });
+
+        const auto RESOURCE =
+            PROTO::dataWlr->m_vSources.emplace_back(makeShared<CWLRDataSource>(makeShared<CZwlrDataControlSourceV1>(r->client(), r->version(), id), device.lock()));
+
+        if (!RESOURCE->good()) {
+            r->noMemory();
+            PROTO::dataWlr->m_vSources.pop_back();
+            return;
+        }
+
+        if (!device)
+            LOGM(WARN, "New data source before a device was created");
+
+        RESOURCE->self = RESOURCE;
+
+        sources.push_back(RESOURCE);
+
+        LOGM(LOG, "New wlr data source bound at {:x}", (uintptr_t)RESOURCE.get());
+    });
+}
+
+bool CWLRDataControlManagerResource::good() {
+    return resource->resource();
+}
+
+CDataDeviceWLRProtocol::CDataDeviceWLRProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
+    ;
+}
+
+void CDataDeviceWLRProtocol::bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id) {
+    const auto RESOURCE = m_vManagers.emplace_back(makeShared<CWLRDataControlManagerResource>(makeShared<CZwlrDataControlManagerV1>(client, ver, id)));
+
+    if (!RESOURCE->good()) {
+        wl_client_post_no_memory(client);
+        m_vManagers.pop_back();
+        return;
+    }
+
+    LOGM(LOG, "New wlr_data_control_manager at {:x}", (uintptr_t)RESOURCE.get());
+}
+
+void CDataDeviceWLRProtocol::destroyResource(CWLRDataControlManagerResource* resource) {
+    std::erase_if(m_vManagers, [&](const auto& other) { return other.get() == resource; });
+}
+
+void CDataDeviceWLRProtocol::destroyResource(CWLRDataSource* resource) {
+    std::erase_if(m_vSources, [&](const auto& other) { return other.get() == resource; });
+}
+
+void CDataDeviceWLRProtocol::destroyResource(CWLRDataDevice* resource) {
+    std::erase_if(m_vDevices, [&](const auto& other) { return other.get() == resource; });
+}
+
+void CDataDeviceWLRProtocol::destroyResource(CWLRDataOffer* resource) {
+    std::erase_if(m_vOffers, [&](const auto& other) { return other.get() == resource; });
+}
+
+void CDataDeviceWLRProtocol::sendSelectionToDevice(SP<CWLRDataDevice> dev, SP<IDataSource> sel) {
+    if (!sel)
+        return;
+
+    const auto OFFER = m_vOffers.emplace_back(makeShared<CWLRDataOffer>(makeShared<CZwlrDataControlOfferV1>(dev->resource->client(), dev->resource->version(), 0), sel));
+
+    if (!OFFER->good()) {
+        dev->resource->noMemory();
+        m_vOffers.pop_back();
+        return;
+    }
+
+    LOGM(LOG, "New offer {:x} for data source {:x}", (uintptr_t)OFFER.get(), (uintptr_t)sel.get());
+
+    dev->sendDataOffer(OFFER);
+    OFFER->sendData();
+    dev->sendSelection(OFFER);
+}
+
+void CDataDeviceWLRProtocol::setSelection(SP<IDataSource> source) {
+    for (auto& o : m_vOffers) {
+        if (o->source && o->source->hasDnd())
+            continue;
+        o->dead = true;
+    }
+
+    if (!source) {
+        LOGM(LOG, "resetting selection");
+
+        for (auto& d : m_vDevices) {
+            sendSelectionToDevice(d, nullptr);
+        }
+
+        return;
+    }
+
+    LOGM(LOG, "New selection for data source {:x}", (uintptr_t)source.get());
+
+    for (auto& d : m_vDevices) {
+        sendSelectionToDevice(d, source);
+    }
+}
+
+SP<CWLRDataDevice> CDataDeviceWLRProtocol::dataDeviceForClient(wl_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())
+        return nullptr;
+    return *it;
+}

src/protocols/DataDeviceWlr.hpp

@@ -0,0 +1,121 @@
+#pragma once
+
+#include <memory>
+#include <vector>
+#include <cstdint>
+#include "WaylandProtocol.hpp"
+#include "wlr-data-control-unstable-v1.hpp"
+#include "types/DataDevice.hpp"
+
+class CWLRDataControlManagerResource;
+class CWLRDataSource;
+class CWLRDataDevice;
+class CWLRDataOffer;
+
+class CWLRDataOffer {
+  public:
+    CWLRDataOffer(SP<CZwlrDataControlOfferV1> resource_, SP<IDataSource> source);
+
+    bool            good();
+    void            sendData();
+
+    bool            dead = false;
+
+    WP<IDataSource> source;
+
+  private:
+    SP<CZwlrDataControlOfferV1> resource;
+
+    friend class CWLRDataDevice;
+};
+
+class CWLRDataSource : public IDataSource {
+  public:
+    CWLRDataSource(SP<CZwlrDataControlSourceV1> resource_, SP<CWLRDataDevice> device_);
+    ~CWLRDataSource();
+    static SP<CWLRDataSource>        fromResource(wl_resource*);
+
+    bool                             good();
+
+    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 void                     error(uint32_t code, const std::string& msg);
+
+    std::vector<std::string>         mimeTypes;
+    WP<CWLRDataSource>               self;
+    WP<CWLRDataDevice>               device;
+
+  private:
+    SP<CZwlrDataControlSourceV1> resource;
+};
+
+class CWLRDataDevice {
+  public:
+    CWLRDataDevice(SP<CZwlrDataControlDeviceV1> resource_);
+
+    bool               good();
+    wl_client*         client();
+    void               sendInitialSelections();
+
+    void               sendDataOffer(SP<CWLRDataOffer> offer);
+    void               sendSelection(SP<CWLRDataOffer> selection);
+
+    WP<CWLRDataDevice> self;
+
+  private:
+    SP<CZwlrDataControlDeviceV1> resource;
+    wl_client*                   pClient = nullptr;
+
+    friend class CDataDeviceWLRProtocol;
+};
+
+class CWLRDataControlManagerResource {
+  public:
+    CWLRDataControlManagerResource(SP<CZwlrDataControlManagerV1> resource_);
+
+    bool                            good();
+
+    WP<CWLRDataDevice>              device;
+    std::vector<WP<CWLRDataSource>> sources;
+
+  private:
+    SP<CZwlrDataControlManagerV1> resource;
+};
+
+class CDataDeviceWLRProtocol : public IWaylandProtocol {
+  public:
+    CDataDeviceWLRProtocol(const wl_interface* iface, const int& ver, const std::string& name);
+
+    virtual void bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id);
+
+  private:
+    void destroyResource(CWLRDataControlManagerResource* resource);
+    void destroyResource(CWLRDataSource* resource);
+    void destroyResource(CWLRDataDevice* resource);
+    void destroyResource(CWLRDataOffer* resource);
+
+    //
+    std::vector<SP<CWLRDataControlManagerResource>> m_vManagers;
+    std::vector<SP<CWLRDataSource>>                 m_vSources;
+    std::vector<SP<CWLRDataDevice>>                 m_vDevices;
+    std::vector<SP<CWLRDataOffer>>                  m_vOffers;
+
+    //
+    void setSelection(SP<IDataSource> source);
+    void sendSelectionToDevice(SP<CWLRDataDevice> dev, SP<IDataSource> sel);
+
+    //
+    SP<CWLRDataDevice> dataDeviceForClient(wl_client*);
+
+    friend class CSeatManager;
+    friend class CWLRDataControlManagerResource;
+    friend class CWLRDataSource;
+    friend class CWLRDataDevice;
+    friend class CWLRDataOffer;
+};
+
+namespace PROTO {
+    inline UP<CDataDeviceWLRProtocol> dataWlr;
+};

src/protocols/core/DataDevice.cpp

@@ -297,6 +297,8 @@ CWLDataDeviceManagerResource::CWLDataDeviceManagerResource(SP<CWlDataDeviceManag
 
         RESOURCE->self = RESOURCE;
 
+        sources.push_back(RESOURCE);
+
         LOGM(LOG, "New data source bound at {:x}", (uintptr_t)RESOURCE.get());
     });