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#ifndef NEWSBOAT_LISTWIDGETBACKEND_H_
#define NEWSBOAT_LISTWIDGETBACKEND_H_
#include <cstdint>
#include <functional>
#include <map>
#include <string>
#include "listformatter.h"
#include "regexmanager.h"
#include "stflpp.h"
#include "stflrichtext.h"
namespace newsboat {
class ListWidgetBackend {
public:
ListWidgetBackend(const std::string& list_name, const std::string& context,
Stfl::Form& form, RegexManager& rxman);
ListWidgetBackend(const std::string& list_name, Stfl::Form& form);
virtual ~ListWidgetBackend() = default;
void stfl_replace_list(std::string stfl);
std::uint32_t get_width();
std::uint32_t get_height();
std::uint32_t get_num_lines();
void invalidate_list_content(std::uint32_t num_lines,
std::function<StflRichText(std::uint32_t, std::uint32_t)> get_line_method);
protected:
virtual void on_list_changed() = 0;
void update_position(std::uint32_t pos, std::uint32_t scroll_offset);
private:
void render();
const std::string list_name;
Stfl::Form& form;
ListFormatter listfmt;
std::uint32_t num_lines;
std::uint32_t scroll_offset;
std::map<std::uint32_t, StflRichText> line_cache;
std::function<StflRichText(std::uint32_t, std::uint32_t)> get_formatted_line;
};
} // namespace newsboat
#endif /* NEWSBOAT_LISTWIDGETBACKEND_H_ */
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