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- ;; Dialog-box support.
- ;; Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
-
- ;; This file is part of XEmacs.
-
- ;; XEmacs 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.
-
- ;; XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free
- ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- (defun yes-or-no-p-dialog-box (prompt)
- "Ask user a \"y or n\" question with a popup dialog box.
- Returns t if answer is \"yes\".
- Takes one argument, which is the string to display to ask the question."
- (let ((echo-keystrokes 0)
- event)
- (popup-dialog-box
- ;; "Non-violent language please!" says Robin.
- (cons prompt '(["Yes" yes t] ["No" no t] nil ["Cancel" abort t])))
- ; (cons prompt '(["Yes" yes t] ["No" no t] nil ["Abort" abort t])))
- (catch 'ynp-done
- (while t
- (setq event (next-command-event event))
- (cond ((and (misc-user-event-p event) (eq (event-object event) 'yes))
- (throw 'ynp-done t))
- ((and (misc-user-event-p event) (eq (event-object event) 'no))
- (throw 'ynp-done nil))
- ((and (misc-user-event-p event)
- (or (eq (event-object event) 'abort)
- (eq (event-object event) 'menu-no-selection-hook)))
- (signal 'quit nil))
- ((button-release-event-p event) ;; don't beep twice
- nil)
- (t
- (beep)
- (message "please answer the dialog box")))))))
-
- (defun yes-or-no-p-maybe-dialog-box (prompt)
- "Ask user a yes-or-no question. Return t if answer is yes.
- The question is asked with a dialog box or the minibuffer, as appropriate.
- Takes one argument, which is the string to display to ask the question.
- It should end in a space; `yes-or-no-p' adds `(yes or no) ' to it.
- The user must confirm the answer with RET,
- and can edit it until it as been confirmed."
- (if (or (button-press-event-p last-command-event)
- (button-release-event-p last-command-event)
- (misc-user-event-p last-command-event))
- (yes-or-no-p-dialog-box prompt)
- (yes-or-no-p-minibuf prompt)))
-
- (defun y-or-n-p-maybe-dialog-box (prompt)
- "Ask user a \"y or n\" question. Return t if answer is \"y\".
- Takes one argument, which is the string to display to ask the question.
- The question is asked with a dialog box or the minibuffer, as appropriate.
- It should end in a space; `y-or-n-p' adds `(y or n) ' to it.
- No confirmation of the answer is requested; a single character is enough.
- Also accepts Space to mean yes, or Delete to mean no."
- (if (or (button-press-event-p last-command-event)
- (button-release-event-p last-command-event)
- (misc-user-event-p last-command-event))
- (yes-or-no-p-dialog-box prompt)
- (y-or-n-p-minibuf prompt)))
-
- (if (fboundp 'popup-dialog-box)
- (progn
- (fset 'yes-or-no-p 'yes-or-no-p-maybe-dialog-box)
- (fset 'y-or-n-p 'y-or-n-p-maybe-dialog-box)))
-