hover_cursor.hpp

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#pragma once

 
#include <optional>
 
#include <pulp/view/geometry.hpp>
#include <pulp/view/view.hpp>
 
namespace pulp::view {

View::CursorStyle hover_cursor_at(View& root, Point p);

class HoverCursorTracker {
public:
    void set_pointer(Point p) {
        pointer_ = p;
        has_pointer_ = true;
    }

    void clear_pointer() {
        has_pointer_ = false;
        published_ = false;
    }
 
    bool has_pointer() const { return has_pointer_; }
    Point pointer() const { return pointer_; }

    void note_published(View::CursorStyle style) {
        last_ = style;
        published_ = true;
    }

    View::CursorStyle published() const { return last_; }

    std::optional<View::CursorStyle> poll_resolved(View::CursorStyle style);

    std::optional<View::CursorStyle> poll(View& root);
 
private:
    Point pointer_{};
    bool has_pointer_ = false;
    bool published_ = false;
    View::CursorStyle last_ = View::CursorStyle::default_;
};
 
}  // namespace pulp::view