polybar/include/components/screen.hpp

#pragma once

#include "common.hpp"
#include "components/types.hpp"
#include "events/signal_emitter.hpp"
#include "events/signal_fwd.hpp"
#include "x11/extensions/randr.hpp"
#include "x11/types.hpp"
#include "x11/window.hpp"

POLYBAR_NS

// fwd
class config;
class logger;
class connection;
class signal_emitter;

class screen : public xpp::event::sink<evt::map_notify, evt::randr_screen_change_notify> {
 public:
  using make_type = unique_ptr<screen>;
  static make_type make();

  explicit screen(connection& conn, signal_emitter& emitter, const logger& logger, const config& conf);
  ~screen();

 protected:
  void handle(const evt::map_notify& evt) override;
  void handle(const evt::randr_screen_change_notify& evt) override;

 private:
  connection& m_connection;
  signal_emitter& m_sig;
  const logger& m_log;
  const config& m_conf;

  xcb_window_t m_root;
  xcb_window_t m_proxy{XCB_NONE};

  vector<monitor_t> m_monitors;
  struct size m_size {
    0U, 0U
  };
  bool m_sigraised{false};

  /**
   * Original event mask on the root window.
   * Used to restore event mask after the proxy window is mapped.
   */
  uint32_t m_root_mask{0};

  bool have_monitors_changed() const;
};

POLYBAR_NS_END