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- ;;; buffer.el --- buffer routines taken from C
- ;;; Copyright (C) 1985-1989, 1992-1995 Free Software Foundation, Inc.
- ;;; Copyright (C) 1995 Sun Microsystems.
- ;;; Copyright (C) 1995, 1996 Ben Wing.
-
- ;; 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, 59 Temple Place - Suite 330,
- ;; Boston, MA 02111-1307, USA.
-
- ;;; Synched up with: FSF 19.30 buffer.c.
-
- ;;; Code:
-
- (defun switch-to-buffer (bufname &optional norecord)
- "Select buffer BUFNAME in the current window.
- BUFNAME may be a buffer or a buffer name.
- Optional second arg NORECORD non-nil means
- do not put this buffer at the front of the list of recently selected ones.
-
- WARNING: This is NOT the way to work on another buffer temporarily
- within a Lisp program! Use `set-buffer' instead. That avoids messing with
- the window-buffer correspondences."
- (interactive "BSwitch to buffer: ")
- ;; #ifdef I18N3
- ;; #### Doc string should indicate that the buffer name will get
- ;; translated.
- ;; #endif
- (if (eq (minibuffer-window) (selected-window))
- (error "Cannot switch buffers in minibuffer window"))
- (if (window-dedicated-p (selected-window))
- (error "Cannot switch buffers in a dedicated window"))
- (let (buf)
- (if (null bufname)
- (setq buf (other-buffer (current-buffer)))
- (setq buf (get-buffer bufname))
- (if (null buf)
- (progn
- (setq buf (get-buffer-create bufname))
- (set-buffer-major-mode buf))))
- (push-window-configuration)
- (set-buffer buf)
- (or norecord (record-buffer buf))
- (set-window-buffer (if (eq (selected-window) (minibuffer-window))
- (next-window (minibuffer-window))
- (selected-window))
- buf)
- buf))
-
- (defun pop-to-buffer (bufname &optional not-this-window-p on-frame)
- "Select buffer BUFNAME in some window, preferably a different one.
- If BUFNAME is nil, then some other buffer is chosen.
- If `pop-up-windows' is non-nil, windows can be split to do this.
- If optional second arg NOT-THIS-WINDOW-P is non-nil, insist on finding
- another window even if BUFNAME is already visible in the selected window.
- If optional third arg is non-nil, it is the frame to pop to this
- buffer on.
- If `focus-follows-mouse' is non-nil, keyboard focus is left unchanged."
- ;; #ifdef I18N3
- ;; #### Doc string should indicate that the buffer name will get
- ;; translated.
- ;; #endif
- ;; This is twisted. It is evil to throw the keyboard focus around
- ;; willy-nilly if the user wants focus-follows-mouse.
- (let ((oldbuf (current-buffer))
- buf window frame)
- (if (null bufname)
- (setq buf (other-buffer (current-buffer)))
- (setq buf (get-buffer bufname))
- (if (null buf)
- (progn
- (setq buf (get-buffer-create bufname))
- (set-buffer-major-mode buf))))
- (push-window-configuration)
- (set-buffer buf)
- (setq window (display-buffer buf not-this-window-p on-frame))
- (setq frame (window-frame window))
- ;; if the display-buffer hook decided to show this buffer in another
- ;; frame, then select that frame, (unless obeying focus-follows-mouse -sb).
- (if (and (not focus-follows-mouse)
- (not (eq frame (selected-frame))))
- (select-frame frame))
- (record-buffer buf)
- (if (and focus-follows-mouse
- on-frame
- (not (eq on-frame (selected-frame))))
- (set-buffer oldbuf)
- ;; select-window will modify the internal keyboard focus of XEmacs
- (select-window window))
- buf))
-