From aaedce596ec27742ea8f00a20607913e8a3e83db Mon Sep 17 00:00:00 2001
From: Nihal Jere <nihal@nihaljere.xyz>
Date: Fri, 15 Aug 2025 14:38:28 +0000
Subject: protocols: implement ext-data-control (#11323)

This protocol has superseded wlr-data-control
---
 src/protocols/ExtDataDevice.hpp | 123 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 src/protocols/ExtDataDevice.hpp

(limited to 'src/protocols/ExtDataDevice.hpp')

diff --git a/src/protocols/ExtDataDevice.hpp b/src/protocols/ExtDataDevice.hpp
new file mode 100644
index 00000000..462090f3
--- /dev/null
+++ b/src/protocols/ExtDataDevice.hpp
@@ -0,0 +1,123 @@
+#pragma once
+
+#include <vector>
+#include <cstdint>
+#include "WaylandProtocol.hpp"
+#include "ext-data-control-v1.hpp"
+#include "types/DataDevice.hpp"
+#include <hyprutils/os/FileDescriptor.hpp>
+
+class CExtDataControlManagerResource;
+class CExtDataSource;
+class CExtDataDevice;
+class CExtDataOffer;
+
+class CExtDataOffer {
+  public:
+    CExtDataOffer(SP<CExtDataControlOfferV1> resource_, SP<IDataSource> source);
+
+    bool            good();
+    void            sendData();
+
+    bool            m_dead    = false;
+    bool            m_primary = false;
+
+    WP<IDataSource> m_source;
+
+  private:
+    SP<CExtDataControlOfferV1> m_resource;
+
+    friend class CExtDataDevice;
+};
+
+class CExtDataSource : public IDataSource {
+  public:
+    CExtDataSource(SP<CExtDataControlSourceV1> resource_, SP<CExtDataDevice> device_);
+    ~CExtDataSource();
+    static SP<CExtDataSource>        fromResource(wl_resource*);
+
+    bool                             good();
+
+    virtual std::vector<std::string> mimes();
+    virtual void                     send(const std::string& mime, Hyprutils::OS::CFileDescriptor 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>         m_mimeTypes;
+    WP<CExtDataSource>               m_self;
+    WP<CExtDataDevice>               m_device;
+
+  private:
+    SP<CExtDataControlSourceV1> m_resource;
+};
+
+class CExtDataDevice {
+  public:
+    CExtDataDevice(SP<CExtDataControlDeviceV1> resource_);
+
+    bool               good();
+    wl_client*         client();
+    void               sendInitialSelections();
+
+    void               sendDataOffer(SP<CExtDataOffer> offer);
+    void               sendSelection(SP<CExtDataOffer> selection);
+    void               sendPrimarySelection(SP<CExtDataOffer> selection);
+
+    WP<CExtDataDevice> self;
+
+  private:
+    SP<CExtDataControlDeviceV1> m_resource;
+    wl_client*                  m_client = nullptr;
+
+    friend class CExtDataDeviceProtocol;
+};
+
+class CExtDataControlManagerResource {
+  public:
+    CExtDataControlManagerResource(SP<CExtDataControlManagerV1> resource_);
+
+    bool                            good();
+
+    WP<CExtDataDevice>              m_device;
+    std::vector<WP<CExtDataSource>> m_sources;
+
+  private:
+    SP<CExtDataControlManagerV1> m_resource;
+};
+
+class CExtDataDeviceProtocol : public IWaylandProtocol {
+  public:
+    CExtDataDeviceProtocol(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(CExtDataControlManagerResource* resource);
+    void destroyResource(CExtDataSource* resource);
+    void destroyResource(CExtDataDevice* resource);
+    void destroyResource(CExtDataOffer* resource);
+
+    //
+    std::vector<SP<CExtDataControlManagerResource>> m_managers;
+    std::vector<SP<CExtDataSource>>                 m_sources;
+    std::vector<SP<CExtDataDevice>>                 m_devices;
+    std::vector<SP<CExtDataOffer>>                  m_offers;
+
+    //
+    void setSelection(SP<IDataSource> source, bool primary);
+    void sendSelectionToDevice(SP<CExtDataDevice> dev, SP<IDataSource> sel, bool primary);
+
+    //
+    SP<CExtDataDevice> dataDeviceForClient(wl_client*);
+
+    friend class CSeatManager;
+    friend class CExtDataControlManagerResource;
+    friend class CExtDataSource;
+    friend class CExtDataDevice;
+    friend class CExtDataOffer;
+};
+
+namespace PROTO {
+    inline UP<CExtDataDeviceProtocol> extDataDevice;
+};
-- 
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