polybar/src/x11/icccm.cpp

#include "x11/icccm.hpp"

POLYBAR_NS

namespace icccm_util {
  string get_wm_name(xcb_connection_t* conn, xcb_window_t win) {
    xcb_icccm_get_text_property_reply_t reply;
    if (!xcb_icccm_get_wm_name_reply(conn, xcb_icccm_get_wm_name(conn, win), &reply, nullptr))
      return "";
    return get_reply_string(&reply);
  }

  string get_reply_string(xcb_icccm_get_text_property_reply_t* reply) {
    if (reply->name == nullptr || !reply->name_len)
      return "";
    char buffer[BUFSIZ]{'\0'};
    strncpy(buffer, reply->name, reply->name_len);
    xcb_icccm_get_text_property_reply_wipe(reply);
    return buffer;
  }
}

POLYBAR_NS_END