1 ;;; buffer.el --- buffer routines taken from C
3 ;; Copyright (C) 1985-1989, 1992-1995, 1997 Free Software Foundation, Inc.
4 ;; Copyright (C) 1995 Sun Microsystems.
5 ;; Copyright (C) 1995, 1996 Ben Wing.
7 ;; Maintainer: SXEmacs Development Team
8 ;; Keywords: internal, dumped
10 ;; This file is part of SXEmacs.
12 ;; SXEmacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; SXEmacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with this program. If not, see <http://www.gnu.org/licenses/>.
25 ;;; Synched up with: FSF 19.30 buffer.c.
29 ;; This file is dumped with SXEmacs.
33 (defun switch-to-buffer (bufname &optional norecord)
34 "Select buffer BUFNAME in the current window.
35 BUFNAME may be a buffer or a buffer name and is created if it did not exist.
36 Optional second arg NORECORD non-nil means do not put this buffer at the
37 front of the list of recently selected ones.
39 WARNING: This is NOT the way to work on another buffer temporarily
40 within a Lisp program! Use `set-buffer' instead. That avoids messing with
41 the window-buffer correspondences."
42 (interactive "BSwitch to buffer: ")
44 ;; #### Doc string should indicate that the buffer name will get
47 (if (eq (minibuffer-window) (selected-window))
48 (error "Cannot switch buffers in minibuffer window"))
49 (if (window-dedicated-p (selected-window))
50 (error "Cannot switch buffers in a dedicated window"))
53 (setq buf (other-buffer (current-buffer)))
54 (setq buf (get-buffer bufname))
57 (setq buf (get-buffer-create bufname))
58 (set-buffer-major-mode buf))))
59 (push-window-configuration)
61 (set-window-buffer (last-nonminibuf-window) buf norecord)
64 (defun pop-to-buffer (bufname &optional not-this-window-p on-frame)
65 "Select buffer BUFNAME in some window, preferably a different one.
66 If BUFNAME is nil, then some other buffer is chosen.
67 If `pop-up-windows' is non-nil, windows can be split to do this.
68 If optional second arg NOT-THIS-WINDOW-P is non-nil, insist on finding
69 another window even if BUFNAME is already visible in the selected window.
70 If optional third arg is non-nil, it is the frame to pop to this
72 If `focus-follows-mouse' is non-nil, keyboard focus is left unchanged.
74 Buffers with names that are members of the `same-window-buffer-names'
75 list, or that match an element of the `same-window-regexps' list are
76 treated specially by this function--they are always selected in the
77 same window rather than in a different one."
79 ;; #### Doc string should indicate that the buffer name will get
82 ;; This is twisted. It is evil to throw the keyboard focus around
83 ;; willy-nilly if the user wants focus-follows-mouse.
84 (let ((oldbuf (current-buffer))
87 (setq buf (other-buffer (current-buffer)))
88 (setq buf (get-buffer bufname))
91 (setq buf (get-buffer-create bufname))
92 (set-buffer-major-mode buf))))
93 (push-window-configuration)
95 (setq window (display-buffer buf not-this-window-p on-frame))
96 (setq frame (window-frame window))
97 ;; if the display-buffer hook decided to show this buffer in another
98 ;; frame, then select that frame, (unless obeying focus-follows-mouse -sb).
99 (if (and (not focus-follows-mouse)
100 (not (eq frame (selected-frame))))
101 (select-frame frame))
103 (if (and focus-follows-mouse
105 (not (eq on-frame (selected-frame))))
107 ;; select-window will modify the internal keyboard focus of XEmacs
108 (select-window window))
111 ;;; buffer.el ends here