Hyprland/src/desktop/Popup.hpp

#pragma once

#include <vector>
#include <memory>
#include "Subsurface.hpp"
#include "../helpers/signal/Signal.hpp"

class CXDGPopupResource;

class CPopup {
  public:
    // dummy head nodes
    CPopup(PHLWINDOW pOwner);
    CPopup(PHLLS pOwner);

    // real nodes
    CPopup(SP<CXDGPopupResource> popup, CPopup* pOwner);

    ~CPopup();

    Vector2D coordsRelativeToParent();
    Vector2D coordsGlobal();

    Vector2D size();

    void     onNewPopup(SP<CXDGPopupResource> popup);
    void     onDestroy();
    void     onMap();
    void     onUnmap();
    void     onCommit(bool ignoreSiblings = false);
    void     onReposition();

    void     recheckTree();

    bool     visible();

    // will also loop over this node
    void    breadthfirst(std::function<void(CPopup*, void*)> fn, void* data);
    CPopup* at(const Vector2D& globalCoords, bool allowsInput = false);

    //
    SP<CWLSurface> m_pWLSurface;

  private:
    // T1 owners, each popup has to have one of these
    PHLWINDOWREF m_pWindowOwner;
    PHLLSREF     m_pLayerOwner;

    // T2 owners
    CPopup*               m_pParent = nullptr;

    WP<CXDGPopupResource> m_pResource;

    Vector2D              m_vLastSize = {};
    Vector2D              m_vLastPos  = {};

    bool                  m_bRequestedReposition = false;

    bool                  m_bInert  = false;
    bool                  m_bMapped = false;

    //
    std::vector<SP<CPopup>>      m_vChildren;
    std::unique_ptr<CSubsurface> m_pSubsurfaceHead;

    struct {
        CHyprSignalListener newPopup;
        CHyprSignalListener destroy;
        CHyprSignalListener map;
        CHyprSignalListener unmap;
        CHyprSignalListener commit;
        CHyprSignalListener dismissed;
        CHyprSignalListener reposition;
    } listeners;

    void        initAllSignals();
    void        unconstrain();
    void        recheckChildrenRecursive();
    void        sendScale();

    Vector2D    localToGlobal(const Vector2D& rel);
    Vector2D    t1ParentCoords();
    static void bfHelper(std::vector<CPopup*> nodes, std::function<void(CPopup*, void*)> fn, void* data);
};