Hyprland/src/managers/CursorManager.hpp

#pragma once

#include <string>
#include <hyprcursor/hyprcursor.hpp>
#include <memory>
#include "../includes.hpp"
#include "../helpers/math/Math.hpp"

struct wlr_buffer;
struct wlr_xcursor_manager;
class CWLSurface;

class CCursorManager {
  public:
    CCursorManager();
    ~CCursorManager();

    wlr_buffer*      getCursorBuffer();

    void             setCursorFromName(const std::string& name);
    void             setCursorSurface(SP<CWLSurface> surf, const Vector2D& hotspot);
    void             setXCursor(const std::string& name);

    bool             changeTheme(const std::string& name, const int size);
    void             updateTheme();
    SCursorImageData dataFor(const std::string& name); // for xwayland
    void             setXWaylandCursor();

    void             tickAnimatedCursor();

    class CCursorBuffer {
      public:
        CCursorBuffer(cairo_surface_t* surf, const Vector2D& size, const Vector2D& hotspot);
        CCursorBuffer(uint8_t* pixelData, const Vector2D& size, const Vector2D& hotspot);
        ~CCursorBuffer();

        struct SCursorWlrBuffer {
            wlr_buffer       base;
            cairo_surface_t* surface   = nullptr;
            bool             dropped   = false;
            CCursorBuffer*   parent    = nullptr;
            uint8_t*         pixelData = nullptr;
            size_t           stride    = 0;
        } wlrBuffer;

      private:
        Vector2D size;
        Vector2D hotspot;

        friend class CCursorManager;
    };

    void dropBufferRef(CCursorBuffer* ref);

    bool m_bOurBufferConnected = false;

  private:
    std::vector<std::unique_ptr<CCursorBuffer>>     m_vCursorBuffers;

    std::unique_ptr<Hyprcursor::CHyprcursorManager> m_pHyprcursor;

    std::string                                     m_szTheme      = "";
    int                                             m_iSize        = 0;
    float                                           m_fCursorScale = 1.0;

    Hyprcursor::SCursorStyleInfo                    m_sCurrentStyleInfo;

    wl_event_source*                                m_pAnimationTimer        = nullptr;
    int                                             m_iCurrentAnimationFrame = 0;
    Hyprcursor::SCursorShapeData                    m_sCurrentCursorShapeData;

    // xcursor fallback
    wlr_xcursor_manager* m_pWLRXCursorMgr = nullptr;
};

inline std::unique_ptr<CCursorManager> g_pCursorManager;