ui_input.h

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#pragma once
 
#include <engine/public/components/ui/image.h>
#include <engine/public/components/ui/text.h>
#include <engine/public/ui/interactable/ui_interactable.h>
 
#include <functional>
#include <vector>
 
class UIInput : public UIInteractable {
 public:
  UIInput(Scene& scene, float width, float height, Point pivot, Point anchor,
          const std::string& placeholder = "", const std::string& font = "",
          const std::string& font_path = "",
          const std::string& sprite_path = "");
 
  void update(float dt) override;
 
  void add_on_focus(const std::function<void(UIInput&)>& handler);
  void add_on_unfocus(const std::function<void(UIInput&)>& handler);
  void add_on_text_changed(const std::function<void(UIInput&)>& handler);
 
  void on_hover() override;
  void on_unhover() override;
  void on_focus() override;
  void on_unfocus() override;
 
  [[nodiscard]] std::string text() const;
  UIInput& text(const std::string& value);
 
  [[nodiscard]] Color text_color() const;
  UIInput& text_color(const Color& color);
 
  [[nodiscard]] int font_size() const;
  UIInput& font_size(int size);
 
  [[nodiscard]] Color input_color() const;
  UIInput& input_color(const Color& color);
 
 private:
  void trigger_on_focus();
  void trigger_on_unfocus();
  void trigger_on_text_changed();
 
  std::vector<std::function<void(UIInput&)>> on_focus_handlers_;
  std::vector<std::function<void(UIInput&)>> on_unfocus_handlers_;
  std::vector<std::function<void(UIInput&)>> on_text_changed_handlers_;
 
  std::string content_;
};