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;;; rdebug-watch.el --- This file contains code dealing with the Ruby
;;; debugger's watch (AKA display) secondary buffer.
;; Copyright (C) 2008 Rocky Bernstein (rocky@gnu.org)
;; Copyright (C) 2008 Anders Lindgren
;; $Id: rdebug-watch.el 711 2008-02-20 07:09:17Z andersl $
;; 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 2, 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 GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; See the manual and the file `rdebug.el' for more information.
;;; Code:
(require 'rdebug-dbg)
(defvar rdebug-watch-mode-map
(let ((map (make-sparse-keymap)))
(suppress-keymap map)
(define-key map "a" 'rdebug-watch-add)
(define-key map "\C-d" 'rdebug-watch-delete)
(define-key map "d" 'rdebug-watch-delete)
(define-key map "e" 'rdebug-watch-edit)
(define-key map "\r" 'rdebug-watch-edit)
(rdebug-populate-digit-keys map)
(rdebug-populate-secondary-buffer-map map)
;; --------------------
;; The "Watch window" submenu.
(let ((submenu (make-sparse-keymap)))
(define-key-after map [menu-bar debugger watch]
(cons "Watch window" submenu)
'placeholder))
(define-key map [menu-bar debugger watch delete]
'(menu-item "Delete" rdebug-watch-delete
:enable (eq major-mode 'rdebug-watch-mode)))
(define-key map [menu-bar debugger watch goto]
'(menu-item "Edit" rdebug-watch-edit
:enable (eq major-mode 'rdebug-watch-mode)))
(define-key map [menu-bar debugger watch add]
'(menu-item "Add" rdebug-watch-add))
map)
"Keymap used in the watch buffer in the `rdebug' Ruby debugger.")
(defun rdebug-display-watch-buffer ()
"Display the rdebug watch buffer."
(interactive)
(rdebug-display-secondary-buffer "watch"))
(defun rdebug-watch-mode ()
"Major mode for displaying watched expressions in the `rdebug' Ruby debugger.
\\{rdebug-watch-mode}"
(interactive)
(kill-all-local-variables)
(setq major-mode 'rdebug-watch-mode)
(setq mode-name "RDEBUG Watch")
(setq buffer-read-only t)
(setq truncate-lines t)
(set (make-local-variable 'rdebug-secondary-buffer) t)
(setq mode-line-process 'rdebug-mode-line-process)
(set (make-local-variable 'font-lock-defaults)
'(rdebug-variables-font-lock-keywords))
(use-local-map rdebug-watch-mode-map)
(run-mode-hooks 'rdebug-watch-mode-hook))
(defun rdebug-setup-watch-buffer (buf comint-buffer)
"Set up the rdebug debugger watch secondary buffer.
This buffer contains display expressions. BUF is the buffer to set up and COMINT-BUFFER be the assocated gud process buffer."
(rdebug-debug-enter "rdebug-setup-watch-buffer"
(with-current-buffer buf
(rdebug-watch-mode)
(set (make-local-variable 'gud-comint-buffer) comint-buffer))))
(defun rdebug-watch-add (expr)
"Add EXPR to watch in the `rdebug' Ruby debugger."
(interactive "sRuby expression: ")
(if (not (string= expr ""))
(gud-call (format "display %s" expr))))
(defun rdebug-watch-delete ()
"Delete a display expression in the `rdebug' Ruby debugger."
(interactive)
(save-excursion
(beginning-of-line)
(if (looking-at "^\\([0-9]+\\):")
(gud-call (format "undisplay %s" (match-string 1))))))
(defun rdebug-watch-edit (number expr)
"Edit a display expression in the `rdebug' Ruby debugger.
Argument NUMBER is the display expression number.
Argument EXPR is the expression for display number NUMBER."
(interactive
(let ((number nil)
(expr nil))
(save-excursion
(beginning-of-line)
(when (looking-at "^\\([0-9]+\\): *\\([^=]*[^= ]\\) *=")
(setq number (match-string 1))
(setq expr (match-string 2))
(setq expr (read-from-minibuffer "Ruby expression: " expr)))
(list number expr))))
(when expr
(gud-call (format "undisplay %s" number))
(gud-call (format "display %s" expr))))
(provide 'rdebug-watch)
;;; Local variables:
;;; eval:(put 'rdebug-debug-enter 'lisp-indent-hook 1)
;;; End:
;;; rdebug-watch.el ends here