gdb/tui/tui-command.c - gdb

Functions defined

Source code

/* Specific command window processing.

   Copyright (C) 1998-2015 Free Software Foundation, Inc.

   Contributed by Hewlett-Packard Company.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include "defs.h"
#include <ctype.h>
#include "tui/tui.h"
#include "tui/tui-data.h"
#include "tui/tui-win.h"
#include "tui/tui-io.h"
#include "tui/tui-command.h"

#include "gdb_curses.h"
/*****************************************
** STATIC LOCAL FUNCTIONS FORWARD DECLS    **
******************************************/



/*****************************************
** PUBLIC FUNCTIONS                        **
******************************************/

/* Dispatch the correct tui function based upon the control
   character.  */
unsigned int
tui_dispatch_ctrl_char (unsigned int ch)
{
  struct tui_win_info *win_info = tui_win_with_focus ();

  /* Handle the CTRL-L refresh for each window.  */
  if (ch == '\f')
    tui_refresh_all_win ();

  /* If the command window has the logical focus, or no-one does
     assume it is the command window; in this case, pass the character
     on through and do nothing here.  */
  if (win_info == NULL || win_info == TUI_CMD_WIN)
    return ch;
  else
    {
      unsigned int c = 0, ch_copy = ch;
      int i;
      char *term;

      /* If this is an xterm, page next/prev keys aren't returned by
         keypad as a single char, so we must handle them here.  Seems
         like a bug in the curses library?  */
      term = (char *) getenv ("TERM");
      if (term)
    {
      for (i = 0; term[i]; i++)
        term[i] = toupper (term[i]);
      if ((strcmp (term, "XTERM") == 0)
          && key_is_start_sequence (ch))
        {
          unsigned int page_ch = 0;
          unsigned int tmp_char;
              WINDOW *w = TUI_CMD_WIN->generic.handle;

          tmp_char = 0;
          while (!key_is_end_sequence (tmp_char))
        {
          tmp_char = (int) wgetch (w);
          if (tmp_char == ERR)
            {
              return ch;
            }
          if (!tmp_char)
            break;
          if (tmp_char == 53)
            page_ch = KEY_PPAGE;
          else if (tmp_char == 54)
            page_ch = KEY_NPAGE;
          else
            {
              return 0;
            }
        }
          ch_copy = page_ch;
        }
    }

      switch (ch_copy)
    {
    case KEY_NPAGE:
      tui_scroll_forward (win_info, 0);
      break;
    case KEY_PPAGE:
      tui_scroll_backward (win_info, 0);
      break;
    case KEY_DOWN:
    case KEY_SF:
      tui_scroll_forward (win_info, 1);
      break;
    case KEY_UP:
    case KEY_SR:
      tui_scroll_backward (win_info, 1);
      break;
    case KEY_RIGHT:
      tui_scroll_left (win_info, 1);
      break;
    case KEY_LEFT:
      tui_scroll_right (win_info, 1);
      break;
    case '\f':
          break;
    default:
      c = ch_copy;
      break;
    }
      return c;
    }
}