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libuv/src/win/tty.c  view on Meta::CPAN

    uv_tty_update_virtual_window(&screen_buffer_info);

    uv_sem_post(&uv_tty_output_lock);
  }


  uv_stream_init(loop, (uv_stream_t*) tty, UV_TTY);
  uv_connection_init((uv_stream_t*) tty);

  tty->handle = handle;
  tty->u.fd = fd;
  tty->reqs_pending = 0;
  tty->flags |= UV_HANDLE_BOUND;

  if (readable) {
    /* Initialize TTY input specific fields. */
    tty->flags |= UV_HANDLE_TTY_READABLE | UV_HANDLE_READABLE;
    /* TODO: remove me in v2.x. */
    tty->tty.rd.unused_ = NULL;
    tty->tty.rd.read_line_buffer = uv_null_buf_;
    tty->tty.rd.read_raw_wait = NULL;

    /* Init keycode-to-vt100 mapper state. */
    tty->tty.rd.last_key_len = 0;
    tty->tty.rd.last_key_offset = 0;
    tty->tty.rd.last_utf16_high_surrogate = 0;
    memset(&tty->tty.rd.last_input_record, 0, sizeof tty->tty.rd.last_input_record);
  } else {
    /* TTY output specific fields. */
    tty->flags |= UV_HANDLE_WRITABLE;

    /* Init utf8-to-utf16 conversion state. */
    tty->tty.wr.utf8_bytes_left = 0;
    tty->tty.wr.utf8_codepoint = 0;

    /* Initialize eol conversion state */
    tty->tty.wr.previous_eol = 0;

    /* Init ANSI parser state. */
    tty->tty.wr.ansi_parser_state = ANSI_NORMAL;
  }

  return 0;
}


/* Set the default console text attributes based on how the console was
 * configured when libuv started.
 */
static void uv_tty_capture_initial_style(CONSOLE_SCREEN_BUFFER_INFO* info) {
  static int style_captured = 0;

  /* Only do this once.
     Assumption: Caller has acquired uv_tty_output_lock. */
  if (style_captured)
    return;

  /* Save raw win32 attributes. */
  uv_tty_default_text_attributes = info->wAttributes;

  /* Convert black text on black background to use white text. */
  if (uv_tty_default_text_attributes == 0)
    uv_tty_default_text_attributes = 7;

  /* Convert Win32 attributes to ANSI colors. */
  uv_tty_default_fg_color = 0;
  uv_tty_default_bg_color = 0;
  uv_tty_default_fg_bright = 0;
  uv_tty_default_bg_bright = 0;
  uv_tty_default_inverse = 0;

  if (uv_tty_default_text_attributes & FOREGROUND_RED)
    uv_tty_default_fg_color |= 1;

  if (uv_tty_default_text_attributes & FOREGROUND_GREEN)
    uv_tty_default_fg_color |= 2;

  if (uv_tty_default_text_attributes & FOREGROUND_BLUE)
    uv_tty_default_fg_color |= 4;

  if (uv_tty_default_text_attributes & BACKGROUND_RED)
    uv_tty_default_bg_color |= 1;

  if (uv_tty_default_text_attributes & BACKGROUND_GREEN)
    uv_tty_default_bg_color |= 2;

  if (uv_tty_default_text_attributes & BACKGROUND_BLUE)
    uv_tty_default_bg_color |= 4;

  if (uv_tty_default_text_attributes & FOREGROUND_INTENSITY)
    uv_tty_default_fg_bright = 1;

  if (uv_tty_default_text_attributes & BACKGROUND_INTENSITY)
    uv_tty_default_bg_bright = 1;

  if (uv_tty_default_text_attributes & COMMON_LVB_REVERSE_VIDEO)
    uv_tty_default_inverse = 1;

  style_captured = 1;
}


int uv_tty_set_mode(uv_tty_t* tty, uv_tty_mode_t mode) {
  DWORD flags;
  unsigned char was_reading;
  uv_alloc_cb alloc_cb;
  uv_read_cb read_cb;
  int err;

  if (!(tty->flags & UV_HANDLE_TTY_READABLE)) {
    return UV_EINVAL;
  }

  if (!!mode == !!(tty->flags & UV_HANDLE_TTY_RAW)) {
    return 0;
  }

  switch (mode) {
    case UV_TTY_MODE_NORMAL:
      flags = ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT;
      break;

libuv/src/win/tty.c  view on Meta::CPAN

  if (argc == 0) {
    /* Reset mode */
    fg_color = uv_tty_default_fg_color;
    bg_color = uv_tty_default_bg_color;
    fg_bright = uv_tty_default_fg_bright;
    bg_bright = uv_tty_default_bg_bright;
    inverse = uv_tty_default_inverse;
  }

  for (i = 0; i < argc; i++) {
    short arg = argv[i];

    if (arg == 0) {
      /* Reset mode */
      fg_color = uv_tty_default_fg_color;
      bg_color = uv_tty_default_bg_color;
      fg_bright = uv_tty_default_fg_bright;
      bg_bright = uv_tty_default_bg_bright;
      inverse = uv_tty_default_inverse;

    } else if (arg == 1) {
      /* Foreground bright on */
      fg_bright = 1;

    } else if (arg == 2) {
      /* Both bright off */
      fg_bright = 0;
      bg_bright = 0;

    } else if (arg == 5) {
      /* Background bright on */
      bg_bright = 1;

    } else if (arg == 7) {
      /* Inverse: on */
      inverse = 1;

    } else if (arg == 21 || arg == 22) {
      /* Foreground bright off */
      fg_bright = 0;

    } else if (arg == 25) {
      /* Background bright off */
      bg_bright = 0;

    } else if (arg == 27) {
      /* Inverse: off */
      inverse = 0;

    } else if (arg >= 30 && arg <= 37) {
      /* Set foreground color */
      fg_color = arg - 30;

    } else if (arg == 39) {
      /* Default text color */
      fg_color = uv_tty_default_fg_color;
      fg_bright = uv_tty_default_fg_bright;

    } else if (arg >= 40 && arg <= 47) {
      /* Set background color */
      bg_color = arg - 40;

    } else if (arg ==  49) {
      /* Default background color */
      bg_color = uv_tty_default_bg_color;
      bg_bright = uv_tty_default_bg_bright;

    } else if (arg >= 90 && arg <= 97) {
      /* Set bold foreground color */
      fg_bright = 1;
      fg_color = arg - 90;

    } else if (arg >= 100 && arg <= 107) {
      /* Set bold background color */
      bg_bright = 1;
      bg_color = arg - 100;

    }
  }

  if (fg_color == -1 && bg_color == -1 && fg_bright == -1 &&
      bg_bright == -1 && inverse == -1) {
    /* Nothing changed */
    return 0;
  }

  if (!GetConsoleScreenBufferInfo(handle->handle, &info)) {
    *error = GetLastError();
    return -1;
  }

  if ((info.wAttributes & COMMON_LVB_REVERSE_VIDEO) > 0) {
    FLIP_FGBG;
  }

  if (fg_color != -1) {
    info.wAttributes &= ~(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
    if (fg_color & 1) info.wAttributes |= FOREGROUND_RED;
    if (fg_color & 2) info.wAttributes |= FOREGROUND_GREEN;
    if (fg_color & 4) info.wAttributes |= FOREGROUND_BLUE;
  }

  if (fg_bright != -1) {
    if (fg_bright) {
      info.wAttributes |= FOREGROUND_INTENSITY;
    } else {
      info.wAttributes &= ~FOREGROUND_INTENSITY;
    }
  }

  if (bg_color != -1) {
    info.wAttributes &= ~(BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE);
    if (bg_color & 1) info.wAttributes |= BACKGROUND_RED;
    if (bg_color & 2) info.wAttributes |= BACKGROUND_GREEN;
    if (bg_color & 4) info.wAttributes |= BACKGROUND_BLUE;
  }

  if (bg_bright != -1) {
    if (bg_bright) {
      info.wAttributes |= BACKGROUND_INTENSITY;
    } else {
      info.wAttributes &= ~BACKGROUND_INTENSITY;
    }
  }

  if (inverse != -1) {
    if (inverse) {
      info.wAttributes |= COMMON_LVB_REVERSE_VIDEO;
    } else {
      info.wAttributes &= ~COMMON_LVB_REVERSE_VIDEO;
    }
  }

  if ((info.wAttributes & COMMON_LVB_REVERSE_VIDEO) > 0) {