--- /dev/null
+;;; frame.el --- multi-frame management independent of window systems.
+
+;; Copyright (C) 1993-4, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1995, 1996 Ben Wing.
+
+;; Maintainer: XEmacs Development Team
+;; Keywords: internal, dumped
+
+;; 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.
+
+;;; Commentary:
+
+;; This file is dumped with XEmacs.
+
+;;; Code:
+
+(defgroup frames nil
+ "Support for Emacs frames and window systems."
+ :group 'environment)
+
+; No need for `frame-creation-function'.
+
+;;; The initial value given here for this must ask for a minibuffer.
+;;; There must always exist a frame with a minibuffer, and after we
+;;; delete the terminal frame, this will be the only frame.
+(defcustom initial-frame-plist '(minibuffer t)
+ "Plist of frame properties for creating the initial X window frame.
+You can set this in your `.emacs' file; for example,
+ (setq initial-frame-plist '(top 1 left 1 width 80 height 55))
+Properties specified here supersede the values given in `default-frame-plist'.
+The format of this can also be an alist for backward compatibility.
+
+If the value calls for a frame without a minibuffer, and you have not created
+a minibuffer frame on your own, one is created according to
+`minibuffer-frame-plist'.
+
+You can specify geometry-related options for just the initial frame
+by setting this variable in your `.emacs' file; however, they won't
+take effect until Emacs reads `.emacs', which happens after first creating
+the frame. If you want the frame to have the proper geometry as soon
+as it appears, you need to use this three-step process:
+* Specify X resources to give the geometry you want.
+* Set `default-frame-plist' to override these options so that they
+ don't affect subsequent frames.
+* Set `initial-frame-plist' in a way that matches the X resources,
+ to override what you put in `default-frame-plist'."
+ :type 'plist
+ :group 'frames)
+
+(defcustom minibuffer-frame-plist '(width 80 height 2 menubar-visible-p nil
+ default-toolbar-visible-p nil)
+ "Plist of frame properties for initially creating a minibuffer frame.
+You can set this in your `.emacs' file; for example,
+ (setq minibuffer-frame-plist '(top 1 left 1 width 80 height 2))
+Properties specified here supersede the values given in
+`default-frame-plist'.
+The format of this can also be an alist for backward compatibility."
+ :type 'plist
+ :group 'frames)
+
+(defcustom pop-up-frame-plist nil
+ "Plist of frame properties used when creating pop-up frames.
+Pop-up frames are used for completions, help, and the like.
+This variable can be set in your init file, like this:
+ (setq pop-up-frame-plist '(width 80 height 20))
+These supersede the values given in `default-frame-plist'.
+The format of this can also be an alist for backward compatibility."
+ :type 'plist
+ :group 'frames)
+
+(setq pop-up-frame-function
+ (function (lambda ()
+ (make-frame pop-up-frame-plist))))
+
+(defcustom special-display-frame-plist '(height 14 width 80 unsplittable t)
+ "*Plist of frame properties used when creating special frames.
+Special frames are used for buffers whose names are in
+`special-display-buffer-names' and for buffers whose names match
+one of the regular expressions in `special-display-regexps'.
+This variable can be set in your init file, like this:
+ (setq special-display-frame-plist '(width 80 height 20))
+These supersede the values given in `default-frame-plist'.
+The format of this can also be an alist for backward compatibility."
+ :type 'plist
+ :group 'frames)
+
+(defun safe-alist-to-plist (cruftiness)
+ (if (consp (car cruftiness))
+ (alist-to-plist cruftiness)
+ cruftiness))
+
+;; Display BUFFER in its own frame, reusing an existing window if any.
+;; Return the window chosen.
+;; Currently we do not insist on selecting the window within its frame.
+;; If ARGS is a plist, use it as a list of frame property specs.
+;; #### Change, not compatible with FSF: This stuff is all so incredibly
+;; junky anyway that I doubt it makes any difference.
+;; If ARGS is a list whose car is t,
+;; use (cadr ARGS) as a function to do the work.
+;; Pass it BUFFER as first arg, and (cddr ARGS) gives the rest of the args.
+(defun special-display-popup-frame (buffer &optional args)
+ ;; if we can't display simultaneous multiple frames, just return
+ ;; nil and let the normal behavior take over.
+ (and (device-on-window-system-p)
+ (if (and args (eq t (car args)))
+ (apply (cadr args) buffer (cddr args))
+ (let ((window (get-buffer-window buffer t)))
+ (if window
+ ;; If we have a window already, make it visible.
+ (let ((frame (window-frame window)))
+ (make-frame-visible frame)
+ (raise-frame frame)
+ window)
+ ;; If no window yet, make one in a new frame.
+ (let ((frame
+ (make-frame (append (safe-alist-to-plist args)
+ (safe-alist-to-plist
+ special-display-frame-plist)))))
+ (set-window-buffer (frame-selected-window frame) buffer)
+ (set-window-dedicated-p (frame-selected-window frame) t)
+ (frame-selected-window frame)))))))
+
+(setq special-display-function 'special-display-popup-frame)
+
+;;; Handle delete-frame events from the X server.
+;(defun handle-delete-frame (event)
+; (interactive "e")
+; (let ((frame (posn-window (event-start event)))
+; (i 0)
+; (tail (frame-list)))
+; (while tail
+; (and (frame-visible-p (car tail))
+; (not (eq (car tail) frame))
+; (setq i (1+ i)))
+; (setq tail (cdr tail)))
+; (if (> i 0)
+; (delete-frame frame t)
+; (kill-emacs))))
+
+\f
+;;;; Arrangement of frames at startup
+
+;;; 1) Load the window system startup file from the lisp library and read the
+;;; high-priority arguments (-q and the like). The window system startup
+;;; file should create any frames specified in the window system defaults.
+;;;
+;;; 2) If no frames have been opened, we open an initial text frame.
+;;;
+;;; 3) Once the init file is done, we apply any newly set properties
+;;; in initial-frame-plist to the frame.
+
+;; These are now called explicitly at the proper times,
+;; since that is easier to understand.
+;; Actually using hooks within Emacs is bad for future maintenance. --rms.
+;; (add-hook 'before-init-hook 'frame-initialize)
+;; (add-hook 'window-setup-hook 'frame-notice-user-settings)
+
+;;; If we create the initial frame, this is it.
+(defvar frame-initial-frame nil)
+
+;; Record the properties used in frame-initialize to make the initial frame.
+(defvar frame-initial-frame-plist)
+
+(defvar frame-initial-geometry-arguments nil)
+
+(defun canonicalize-frame-plists ()
+ (setq initial-frame-plist (safe-alist-to-plist initial-frame-plist))
+ (setq default-frame-plist (safe-alist-to-plist default-frame-plist)))
+
+;;; startup.el calls this function before loading the user's init
+;;; file - if there is no frame with a minibuffer open now, create
+;;; one to display messages while loading the init file.
+(defun frame-initialize ()
+ ;; In batch mode, we actually use the initial terminal device for output.
+ (canonicalize-frame-plists)
+ (if (not (noninteractive))
+ (progn
+ ;; Don't call select-frame here - focus is a matter of WM policy.
+
+ ;; If there is no frame with a minibuffer besides the terminal
+ ;; frame, then we need to create the opening frame. Make sure
+ ;; it has a minibuffer, but let initial-frame-plist omit the
+ ;; minibuffer spec.
+ (or (delq terminal-frame (minibuffer-frame-list))
+ (progn
+ (setq frame-initial-frame-plist
+ (append initial-frame-plist default-frame-plist))
+ ;; FSFmacs has scroll-bar junk here that we don't need.
+ (setq default-minibuffer-frame
+ (setq frame-initial-frame
+ (make-frame initial-frame-plist
+ (car (delq terminal-device
+ (device-list))))))
+ ;; Delete any specifications for window geometry properties
+ ;; so that we won't reapply them in frame-notice-user-settings.
+ ;; It would be wrong to reapply them then,
+ ;; because that would override explicit user resizing.
+ (setq initial-frame-plist
+ (frame-remove-geometry-props initial-frame-plist))))
+ ;; At this point, we know that we have a frame open, so we
+ ;; can delete the terminal device.
+ ;; (delete-device terminal-device)
+ ;; Do it the same way Fkill_emacs does it. -slb
+ (delete-console terminal-console)
+ (setq terminal-frame nil)
+
+ ;; FSFmacs sets frame-creation-function here, but no need.
+ )))
+
+;;; startup.el calls this function after loading the user's init
+;;; file. Now default-frame-plist and initial-frame-plist contain
+;;; information to which we must react; do what needs to be done.
+(defun frame-notice-user-settings ()
+
+ ;; FSFmacs has menu-bar junk here that we don't need.
+
+ (canonicalize-frame-plists)
+
+ ;; Creating and deleting frames may shift the selected frame around,
+ ;; and thus the current buffer. Protect against that. We don't
+ ;; want to use save-excursion here, because that may also try to set
+ ;; the buffer of the selected window, which fails when the selected
+ ;; window is the minibuffer.
+ (let ((old-buffer (current-buffer)))
+
+ ;; If the initial frame is still around, apply initial-frame-plist
+ ;; and default-frame-plist to it.
+ (if (frame-live-p frame-initial-frame)
+
+ ;; The initial frame we create above always has a minibuffer.
+ ;; If the user wants to remove it, or make it a minibuffer-only
+ ;; frame, then we'll have to delete the selected frame and make a
+ ;; new one; you can't remove or add a root window to/from an
+ ;; existing frame.
+ ;;
+ ;; NOTE: default-frame-plist was nil when we created the
+ ;; existing frame. We need to explicitly include
+ ;; default-frame-plist in the properties of the screen we
+ ;; create here, so that its new value, gleaned from the user's
+ ;; .emacs file, will be applied to the existing screen.
+ (if (not (eq (car
+ (or (and (lax-plist-member
+ initial-frame-plist 'minibuffer)
+ (list (lax-plist-get initial-frame-plist
+ 'minibuffer)))
+ (and (lax-plist-member default-frame-plist
+ 'minibuffer)
+ (list (lax-plist-get default-frame-plist
+ 'minibuffer)))
+ '(t)))
+ t))
+ ;; Create the new frame.
+ (let (props
+ )
+ ;; If the frame isn't visible yet, wait till it is.
+ ;; If the user has to position the window,
+ ;; Emacs doesn't know its real position until
+ ;; the frame is seen to be visible.
+
+ (if (frame-property frame-initial-frame 'initially-unmapped)
+ nil
+ (while (not (frame-visible-p frame-initial-frame))
+ (sleep-for 1)))
+ (setq props (frame-properties frame-initial-frame))
+ ;; Get rid of `name' unless it was specified explicitly before.
+ (or (lax-plist-member frame-initial-frame-plist 'name)
+ (setq props (lax-plist-remprop props 'name)))
+ (setq props (append initial-frame-plist default-frame-plist
+ props
+ nil))
+ ;; Get rid of `reverse', because that was handled
+ ;; when we first made the frame.
+ (laxputf props 'reverse nil)
+ ;; Get rid of `window-id', otherwise make-frame will
+ ;; think we're trying to setup an external widget.
+ (laxremf props 'window-id)
+ (if (lax-plist-member frame-initial-geometry-arguments 'height)
+ (laxremf props 'height))
+ (if (lax-plist-member frame-initial-geometry-arguments 'width)
+ (laxremf props 'width))
+ (if (lax-plist-member frame-initial-geometry-arguments 'left)
+ (laxremf props 'left))
+ (if (lax-plist-member frame-initial-geometry-arguments 'top)
+ (laxremf props 'top))
+
+ ;; Now create the replacement initial frame.
+ (make-frame
+ ;; Use the geometry args that created the existing
+ ;; frame, rather than the props we get for it.
+ (append '(user-size t user-position t)
+ frame-initial-geometry-arguments
+ props))
+ ;; The initial frame, which we are about to delete, may be
+ ;; the only frame with a minibuffer. If it is, create a
+ ;; new one.
+ (or (delq frame-initial-frame (minibuffer-frame-list))
+ (make-initial-minibuffer-frame nil))
+
+ ;; If the initial frame is serving as a surrogate
+ ;; minibuffer frame for any frames, we need to wean them
+ ;; onto a new frame. The default-minibuffer-frame
+ ;; variable must be handled similarly.
+ (let ((users-of-initial
+ (filtered-frame-list
+ #'(lambda (frame)
+ (and (not (eq frame frame-initial-frame))
+ (eq (window-frame
+ (minibuffer-window frame))
+ frame-initial-frame))))))
+ (if (or users-of-initial
+ (eq default-minibuffer-frame frame-initial-frame))
+
+ ;; Choose an appropriate frame. Prefer frames which
+ ;; are only minibuffers.
+ (let* ((new-surrogate
+ (car
+ (or (filtered-frame-list
+ #'(lambda (frame)
+ (eq 'only
+ (frame-property frame 'minibuffer))))
+ (minibuffer-frame-list))))
+ (new-minibuffer (minibuffer-window new-surrogate)))
+
+ (if (eq default-minibuffer-frame frame-initial-frame)
+ (setq default-minibuffer-frame new-surrogate))
+
+ ;; Wean the frames using frame-initial-frame as
+ ;; their minibuffer frame.
+ (mapcar
+ #'
+ (lambda (frame)
+ (set-frame-property frame 'minibuffer
+ new-minibuffer))
+ users-of-initial))))
+
+ ;; Redirect events enqueued at this frame to the new frame.
+ ;; Is this a good idea?
+ ;; Probably not, since this whole redirect-frame-focus
+ ;; stuff is a load of trash, and so is this function we're in.
+ ;; --ben
+ ;(redirect-frame-focus frame-initial-frame new)
+
+ ;; Finally, get rid of the old frame.
+ (delete-frame frame-initial-frame t))
+
+ ;; Otherwise, we don't need all that rigamarole; just apply
+ ;; the new properties.
+ (let (newprops allprops tail)
+ (setq allprops (append initial-frame-plist
+ default-frame-plist))
+ (if (lax-plist-member frame-initial-geometry-arguments 'height)
+ (laxremf allprops 'height))
+ (if (lax-plist-member frame-initial-geometry-arguments 'width)
+ (remf allprops 'width))
+ (if (lax-plist-member frame-initial-geometry-arguments 'left)
+ (laxremf allprops 'left))
+ (if (lax-plist-member frame-initial-geometry-arguments 'top)
+ (laxremf allprops 'top))
+ (setq tail allprops)
+ ;; Find just the props that have changed since we first
+ ;; made this frame. Those are the ones actually set by
+ ;; the init file. For those props whose values we already knew
+ ;; (such as those spec'd by command line options)
+ ;; it is undesirable to specify the parm again
+ ;; once the user has seen the frame and been able to alter it
+ ;; manually.
+ (while tail
+ (let (newval oldval)
+ (setq oldval (lax-plist-get frame-initial-frame-plist
+ (car tail)))
+ (setq newval (lax-plist-get allprops (car tail)))
+ (or (eq oldval newval)
+ (laxputf newprops (car tail) newval)))
+ (setq tail (cddr tail)))
+ (set-frame-properties frame-initial-frame newprops)
+ ;silly FSFmacs junk
+ ;if (lax-plist-member newprops 'font)
+ ; (frame-update-faces frame-initial-frame))
+
+ )))
+
+ ;; Restore the original buffer.
+ (set-buffer old-buffer)
+
+ ;; Make sure the initial frame can be GC'd if it is ever deleted.
+ ;; Make sure frame-notice-user-settings does nothing if called twice.
+ (setq frame-initial-frame nil)))
+
+(defun make-initial-minibuffer-frame (device)
+ (let ((props (append '(minibuffer only)
+ (safe-alist-to-plist minibuffer-frame-plist))))
+ (make-frame props device)))
+
+\f
+;;;; Creation of additional frames, and other frame miscellanea
+
+(defun get-other-frame ()
+ "Return some frame other than the selected frame, creating one if necessary."
+ (let* ((this (selected-frame))
+ ;; search visible frames first
+ (next (next-frame this 'visible-nomini)))
+ ;; then search iconified frames
+ (if (eq this next)
+ (setq next (next-frame 'visible-iconic-nomini)))
+ (if (eq this next)
+ ;; otherwise, make a new frame
+ (make-frame)
+ next)))
+
+(defun next-multiframe-window ()
+ "Select the next window, regardless of which frame it is on."
+ (interactive)
+ (select-window (next-window (selected-window)
+ (> (minibuffer-depth) 0)
+ t)))
+
+(defun previous-multiframe-window ()
+ "Select the previous window, regardless of which frame it is on."
+ (interactive)
+ (select-window (previous-window (selected-window)
+ (> (minibuffer-depth) 0)
+ t)))
+
+(defun make-frame-on-device (type connection &optional props)
+ "Create a frame of type TYPE on CONNECTION.
+TYPE should be a symbol naming the device type, i.e. one of
+
+x An X display. CONNECTION should be a standard display string
+ such as \"unix:0\", or nil for the display specified on the
+ command line or in the DISPLAY environment variable. Only if
+ support for X was compiled into XEmacs.
+tty A standard TTY connection or terminal. CONNECTION should be
+ a TTY device name such as \"/dev/ttyp2\" (as determined by
+ the Unix command `tty') or nil for XEmacs' standard input
+ and output (usually the TTY in which XEmacs started). Only
+ if support for TTY's was compiled into XEmacs.
+gtk A GTK device.
+ns A connection to a machine running the NeXTstep windowing
+ system. Not currently implemented.
+mswindows A connection to a machine running Microsoft Windows NT or
+ Windows 95/97.
+pc A direct-write MS-DOS frame. Not currently implemented.
+
+PROPS should be a plist of properties, as in the call to `make-frame'.
+
+If a connection to CONNECTION already exists, it is reused; otherwise,
+a new connection is opened."
+ (make-frame props (make-device type connection props)))
+
+;; Alias, kept temporarily.
+(defalias 'new-frame 'make-frame)
+
+; FSFmacs has make-frame here. We have it in C, so no need for
+; frame-creation-function.
+
+(defun filtered-frame-list (predicate &optional device)
+ "Return a list of all live frames which satisfy PREDICATE.
+If optional second arg DEVICE is non-nil, restrict the frames
+ returned to that device."
+ (let ((frames (if device (device-frame-list device)
+ (frame-list)))
+ good-frames)
+ (while (consp frames)
+ (if (funcall predicate (car frames))
+ (setq good-frames (cons (car frames) good-frames)))
+ (setq frames (cdr frames)))
+ good-frames))
+
+(defun minibuffer-frame-list (&optional device)
+ "Return a list of all frames with their own minibuffers.
+If optional second arg DEVICE is non-nil, restrict the frames
+ returned to that device."
+ (filtered-frame-list
+ #'(lambda (frame)
+ (eq frame (window-frame (minibuffer-window frame))))
+ device))
+
+(defun frame-minibuffer-only-p (frame)
+ "Return non-nil if FRAME is a minibuffer-only frame."
+ (eq (frame-root-window frame) (minibuffer-window frame)))
+
+(defun frame-remove-geometry-props (plist)
+ "Return the property list PLIST, but with geometry specs removed.
+This deletes all bindings in PLIST for `top', `left', `width',
+`height', `user-size' and `user-position' properties.
+Emacs uses this to avoid overriding explicit moves and resizings from
+the user during startup."
+ (setq plist (canonicalize-lax-plist (copy-sequence plist)))
+ (mapcar #'(lambda (property)
+ (if (lax-plist-member plist property)
+ (progn
+ (setq frame-initial-geometry-arguments
+ (cons property
+ (cons (lax-plist-get plist property)
+ frame-initial-geometry-arguments)))
+ (setq plist (lax-plist-remprop plist property)))))
+ '(height width top left user-size user-position))
+ plist)
+
+(defun other-frame (arg)
+ "Select the ARG'th different visible frame, and raise it.
+All frames are arranged in a cyclic order.
+This command selects the frame ARG steps away in that order.
+A negative ARG moves in the opposite order.
+
+This sets the window system focus, regardless of the value
+of `focus-follows-mouse'."
+ (interactive "p")
+ (let ((frame (selected-frame)))
+ (while (> arg 0)
+ (setq frame (next-frame frame 'visible-nomini))
+ (setq arg (1- arg)))
+ (while (< arg 0)
+ (setq frame (previous-frame frame 'visible-nomini))
+ (setq arg (1+ arg)))
+ (raise-frame frame)
+ (focus-frame frame)
+ ;this is a bad idea; you should in general never warp the
+ ;pointer unless the user asks for this. Furthermore,
+ ;our version of `set-mouse-position' takes a window,
+ ;not a frame.
+ ;(set-mouse-position (selected-frame) (1- (frame-width)) 0)
+ ;some weird FSFmacs randomness
+ ;(if (fboundp 'unfocus-frame)
+ ; (unfocus-frame))))
+ ))
+\f
+;; XEmacs-added utility functions
+
+(defmacro save-selected-frame (&rest body)
+ "Execute forms in BODY, then restore the selected frame.
+The value returned is the value of the last form in BODY."
+ (let ((old-frame (gensym "ssf")))
+ `(let ((,old-frame (selected-frame)))
+ (unwind-protect
+ (progn ,@body)
+ (select-frame ,old-frame)))))
+
+(defmacro with-selected-frame (frame &rest body)
+ "Execute forms in BODY with FRAME as the selected frame.
+The value returned is the value of the last form in BODY."
+ `(save-selected-frame
+ (select-frame ,frame)
+ ,@body))
+
+; this is in C in FSFmacs
+(defun frame-list ()
+ "Return a list of all frames on all devices/consoles."
+ ;; Lists are copies, so nconc is safe here.
+ (apply 'nconc (mapcar 'device-frame-list (device-list))))
+
+(defun frame-type (&optional frame)
+ "Return the type of the specified frame (e.g. `x' or `tty').
+This is equivalent to the type of the frame's device.
+Value is `tty' for a tty frame (a character-only terminal),
+`x' for a frame that is an X window,
+`ns' for a frame that is a NeXTstep window (not yet implemented),
+`mswindows' for a frame that is a MS Windows desktop window,
+`msprinter' for a frame that is a MS Windows print job,
+`stream' for a stream frame (which acts like a stdio stream), and
+`dead' for a deleted frame."
+ (or frame (setq frame (selected-frame)))
+ (if (not (frame-live-p frame)) 'dead
+ (device-type (frame-device frame))))
+
+(defun device-or-frame-p (object)
+ "Return non-nil if OBJECT is a device or frame."
+ (or (devicep object)
+ (framep object)))
+
+(defun device-or-frame-type (device-or-frame)
+ "Return the type (e.g. `x' or `tty') of DEVICE-OR-FRAME.
+DEVICE-OR-FRAME should be a device or a frame object. See `device-type'
+for a description of the possible types."
+ (if (devicep device-or-frame)
+ (device-type device-or-frame)
+ (frame-type device-or-frame)))
+
+(defun fw-frame (obj)
+ "Given a frame or window, return the associated frame.
+Return nil otherwise."
+ (cond ((windowp obj) (window-frame obj))
+ ((framep obj) obj)
+ (t nil)))
+
+\f
+;;;; Frame configurations
+
+(defun current-frame-configuration ()
+ "Return a list describing the positions and states of all frames.
+Its car is `frame-configuration'.
+Each element of the cdr is a list of the form (FRAME PLIST WINDOW-CONFIG),
+where
+ FRAME is a frame object,
+ PLIST is a property list specifying some of FRAME's properties, and
+ WINDOW-CONFIG is a window configuration object for FRAME."
+ (cons 'frame-configuration
+ (mapcar (function
+ (lambda (frame)
+ (list frame
+ (frame-properties frame)
+ (current-window-configuration frame))))
+ (frame-list))))
+
+(defun set-frame-configuration (configuration &optional nodelete)
+ "Restore the frames to the state described by CONFIGURATION.
+Each frame listed in CONFIGURATION has its position, size, window
+configuration, and other properties set as specified in CONFIGURATION.
+Ordinarily, this function deletes all existing frames not
+listed in CONFIGURATION. But if optional second argument NODELETE
+is given and non-nil, the unwanted frames are iconified instead."
+ (or (frame-configuration-p configuration)
+ (signal 'wrong-type-argument
+ (list 'frame-configuration-p configuration)))
+ (let ((config-plist (cdr configuration))
+ frames-to-delete)
+ (mapc (lambda (frame)
+ (let ((properties (assq frame config-plist)))
+ (if properties
+ (progn
+ (set-frame-properties
+ frame
+ ;; Since we can't set a frame's minibuffer status,
+ ;; we might as well omit the parameter altogether.
+ (lax-plist-remprop (nth 1 properties) 'minibuffer))
+ (set-window-configuration (nth 2 properties)))
+ (setq frames-to-delete (cons frame frames-to-delete)))))
+ (frame-list))
+ (if nodelete
+ ;; Note: making frames invisible here was tried
+ ;; but led to some strange behavior--each time the frame
+ ;; was made visible again, the window manager asked afresh
+ ;; for where to put it.
+ (mapc 'iconify-frame frames-to-delete)
+ (mapc 'delete-frame frames-to-delete))))
+
+; this function is in subr.el in FSFmacs.
+; that's because they don't always include frame.el, while we do.
+
+(defun frame-configuration-p (object)
+ "Return non-nil if OBJECT seems to be a frame configuration.
+Any list whose car is `frame-configuration' is assumed to be a frame
+configuration."
+ (and (consp object)
+ (eq (car object) 'frame-configuration)))
+
+\f
+;; FSFmacs has functions `frame-width', `frame-height' here.
+;; We have them in C.
+
+;; FSFmacs has weird functions `set-default-font', `set-background-color',
+;; `set-foreground-color' here. They don't do sensible things like
+;; set faces; instead they set frame properties (??!!) and call
+;; useless functions such as `frame-update-faces' and
+;; `frame-update-face-colors'.
+
+;; FSFmacs has functions `set-cursor-color', `set-mouse-color', and
+;; `set-border-color', which refer to frame properties.
+;; #### We need to use specifiers here.
+
+;(defun auto-raise-mode (arg)
+; "Toggle whether or not the selected frame should auto-raise.
+;With arg, turn auto-raise mode on if and only if arg is positive.
+;Note that this controls Emacs's own auto-raise feature.
+;Some window managers allow you to enable auto-raise for certain windows.
+;You can use that for Emacs windows if you wish, but if you do,
+;that is beyond the control of Emacs and this command has no effect on it."
+; (interactive "P")
+; (if (null arg)
+; (setq arg
+; (if (frame-property (selected-frame) 'auto-raise)
+; -1 1)))
+; (set-frame-property (selected-frame) 'auto-raise (> arg 0)))
+
+;(defun auto-lower-mode (arg)
+; "Toggle whether or not the selected frame should auto-lower.
+;With arg, turn auto-lower mode on if and only if arg is positive.
+;Note that this controls Emacs's own auto-lower feature.
+;Some window managers allow you to enable auto-lower for certain windows.
+;You can use that for Emacs windows if you wish, but if you do,
+;that is beyond the control of Emacs and this command has no effect on it."
+; (interactive "P")
+; (if (null arg)
+; (setq arg
+; (if (frame-property (selected-frame) 'auto-lower)
+; -1 1)))
+; (set-frame-property (selected-frame) 'auto-lower (> arg 0)))
+
+;; FSFmacs has silly functions `toggle-scroll-bar',
+;; `toggle-horizontal-scrollbar'
+\f
+;;; Iconifying emacs.
+;;;
+;;; The function iconify-emacs replaces every non-iconified emacs window
+;;; with a *single* icon. Iconified emacs windows are left alone. When
+;;; emacs is in this globally-iconified state, de-iconifying any emacs icon
+;;; will uniconify all frames that were visible, and iconify all frames
+;;; that were not. This is done by temporarily changing the value of
+;;; `map-frame-hook' to `deiconify-emacs' (which should never be called
+;;; except from the map-frame-hook while emacs is iconified).
+;;;
+;;; The title of the icon representing all emacs frames is controlled by
+;;; the variable `icon-name'. This is done by temporarily changing the
+;;; value of `frame-icon-title-format'. Unfortunately, this changes the
+;;; titles of all emacs icons, not just the "big" icon.
+;;;
+;;; It would be nice if existing icons were removed and restored by
+;;; iconifying the emacs process, but I couldn't make that work yet.
+
+(defvar icon-name nil) ; set this at run time, not load time.
+
+(defvar iconification-data nil)
+
+(defun iconify-emacs ()
+ "Replace every non-iconified FRAME with a *single* icon.
+Iconified frames are left alone. When XEmacs is in this
+globally-iconified state, de-iconifying any emacs icon will uniconify
+all frames that were visible, and iconify all frames that were not."
+ (interactive)
+ (if iconification-data (error "already iconified?"))
+ (let* ((frames (frame-list))
+ (rest frames)
+ (me (selected-frame))
+ frame)
+ (while rest
+ (setq frame (car rest))
+ (setcar rest (cons frame (frame-visible-p frame)))
+; (if (memq (cdr (car rest)) '(icon nil))
+; (progn
+; (make-frame-visible frame) ; deiconify, and process the X event
+; (sleep-for 500 t) ; process X events; I really want to XSync() here
+; ))
+ (or (eq frame me) (make-frame-invisible frame))
+ (setq rest (cdr rest)))
+ (or (boundp 'map-frame-hook) (setq map-frame-hook nil))
+ (or icon-name
+ (setq icon-name (concat invocation-name " @ " (system-name))))
+ (setq iconification-data
+ (list frame-icon-title-format map-frame-hook frames)
+ frame-icon-title-format icon-name
+ map-frame-hook 'deiconify-emacs)
+ (iconify-frame me)))
+
+
+(defun deiconify-emacs (&optional ignore)
+ (or iconification-data (error "not iconified?"))
+ (setq frame-icon-title-format (car iconification-data)
+ map-frame-hook (car (cdr iconification-data))
+ iconification-data (car (cdr (cdr iconification-data))))
+ (while iconification-data
+ (let ((visibility (cdr (car iconification-data))))
+ (cond (visibility ;; JV (Note non-nil means visible in XEmacs)
+ (make-frame-visible (car (car iconification-data))))
+; (t ;; (eq visibility 'icon) ;; JV Not in XEmacs!!!
+; (make-frame-visible (car (car iconification-data)))
+; (sleep-for 500 t) ; process X events; I really want to XSync() here
+; (iconify-frame (car (car iconification-data))))
+ ;; (t nil)
+ ))
+ (setq iconification-data (cdr iconification-data))))
+
+(defun suspend-or-iconify-emacs ()
+ "Call iconify-emacs if using a window system, otherwise suspend Emacs."
+ (interactive)
+ (cond ((device-on-window-system-p)
+ (iconify-emacs))
+ ((and (eq (device-type) 'tty)
+ (console-tty-controlling-process (selected-console)))
+ (suspend-console (selected-console)))
+ (t
+ (suspend-emacs))))
+
+;; This is quite a mouthful, but it should be descriptive, as it's
+;; bound to C-z. FSF takes the easy way out by binding C-z to
+;; different things depending on window-system. We can't do the same,
+;; because we allow simultaneous X and TTY consoles.
+(defun suspend-emacs-or-iconify-frame ()
+ "Iconify the selected frame if using a window system, otherwise suspend Emacs."
+ (interactive)
+ (cond ((device-on-window-system-p)
+ (iconify-frame))
+ ((and (eq (frame-type) 'tty)
+ (console-tty-controlling-process (selected-console)))
+ (suspend-console (selected-console)))
+ (t
+ (suspend-emacs))))
+
+\f
+;;; auto-raise and auto-lower
+
+(defcustom auto-raise-frame nil
+ "*If true, frames will be raised to the top when selected.
+Under X, most ICCCM-compliant window managers will have an option to do this
+for you, but this variable is provided in case you're using a broken WM."
+ :type 'boolean
+ :group 'frames)
+
+(defcustom auto-lower-frame nil
+ "*If true, frames will be lowered to the bottom when no longer selected.
+Under X, most ICCCM-compliant window managers will have an option to do this
+for you, but this variable is provided in case you're using a broken WM."
+ :type 'boolean
+ :group 'frames)
+
+(defun default-select-frame-hook ()
+ "Implement the `auto-raise-frame' variable.
+For use as the value of `select-frame-hook'."
+ (if auto-raise-frame (raise-frame (selected-frame))))
+
+(defun default-deselect-frame-hook ()
+ "Implement the `auto-lower-frame' variable.
+For use as the value of `deselect-frame-hook'."
+ (if auto-lower-frame (lower-frame (selected-frame)))
+ (highlight-extent nil nil))
+
+(or select-frame-hook
+ (add-hook 'select-frame-hook 'default-select-frame-hook))
+
+(or deselect-frame-hook
+ (add-hook 'deselect-frame-hook 'default-deselect-frame-hook))
+
+\f
+;;; Application-specific frame-management
+
+(defcustom get-frame-for-buffer-default-frame-name nil
+ "*The default frame to select; see doc of `get-frame-for-buffer'."
+ :type 'string
+ :group 'frames)
+
+(defcustom get-frame-for-buffer-default-instance-limit nil
+ "*The default instance limit for creating new frames;
+see doc of `get-frame-for-buffer'."
+ :type 'integer
+ :group 'frames)
+
+(defun get-frame-name-for-buffer (buffer)
+ (let ((mode (and (get-buffer buffer)
+ (save-excursion (set-buffer buffer)
+ major-mode))))
+ (or (get mode 'frame-name)
+ get-frame-for-buffer-default-frame-name)))
+
+(defun get-frame-for-buffer-make-new-frame (buffer &optional frame-name plist)
+ (let* ((fr (make-frame plist))
+ (w (frame-root-window fr)))
+ ;;
+ ;; Make the one buffer being displayed in this newly created
+ ;; frame be the buffer of interest, instead of something
+ ;; random, so that it won't be shown in two-window mode.
+ ;; Avoid calling switch-to-buffer here, since that's something
+ ;; people might want to call this routine from.
+ ;;
+ ;; (If the root window doesn't have a buffer, then that means
+ ;; there is more than one window on the frame, which can only
+ ;; happen if the user has done something funny on the frame-
+ ;; creation-hook. If that's the case, leave it alone.)
+ ;;
+ (if (window-buffer w)
+ (set-window-buffer w buffer))
+ fr))
+
+(defcustom get-frame-for-buffer-default-to-current nil
+ "*When non-nil, `get-frame-for-buffer' will default to the selected frame."
+ :type 'boolean
+ :group 'frames)
+
+(defun get-frame-for-buffer-noselect (buffer
+ &optional not-this-window-p on-frame)
+ "Return a frame in which to display BUFFER.
+This is a subroutine of `get-frame-for-buffer' (which see)."
+ (let (name limit)
+ (cond
+ ((or on-frame (eq (selected-window) (minibuffer-window)))
+ ;; don't switch frames if a frame was specified, or to list
+ ;; completions from the minibuffer, etc.
+ nil)
+
+ ((setq name (get-frame-name-for-buffer buffer))
+ ;;
+ ;; This buffer's mode expressed a preference for a frame of a particular
+ ;; name. That always takes priority.
+ ;;
+ (let ((limit (get name 'instance-limit))
+ (defaults (get name 'frame-defaults))
+ (matching-frames '())
+ frames frame already-visible)
+ ;; Sort the list so that iconic frames will be found last. They
+ ;; will be used too, but mapped frames take precedence. And
+ ;; fully visible frames come before occluded frames.
+ ;; Hidden frames come after really visible ones
+ (setq frames
+ (sort (frame-list)
+ #'(lambda (s1 s2)
+ (cond ((frame-totally-visible-p s2)
+ nil)
+ ((not (frame-visible-p s2))
+ (frame-visible-p s1))
+ ((eq (frame-visible-p s2) 'hidden)
+ (eq (frame-visible-p s1) t ))
+ ((not (frame-totally-visible-p s2))
+ (and (frame-visible-p s1)
+ (frame-totally-visible-p s1)))))))
+ ;; but the selected frame should come first, even if it's occluded,
+ ;; to minimize thrashing.
+ (setq frames (cons (selected-frame)
+ (delq (selected-frame) frames)))
+
+ (setq name (symbol-name name))
+ (while frames
+ (setq frame (car frames))
+ (if (equal name (frame-name frame))
+ (if (get-buffer-window buffer frame)
+ (setq already-visible frame
+ frames nil)
+ (setq matching-frames (cons frame matching-frames))))
+ (setq frames (cdr frames)))
+ (cond (already-visible
+ already-visible)
+ ((or (null matching-frames)
+ (eq limit 0) ; means create with reckless abandon
+ (and limit (< (length matching-frames) limit)))
+ (get-frame-for-buffer-make-new-frame
+ buffer
+ name
+ (alist-to-plist (acons 'name name
+ (plist-to-alist defaults)))))
+ (t
+ ;; do not switch any of the window/buffer associations in an
+ ;; existing frame; this function only picks a frame; the
+ ;; determination of which windows on it get reused is up to
+ ;; display-buffer itself.
+;; (or (window-dedicated-p (selected-window))
+;; (switch-to-buffer buffer))
+ (car matching-frames)))))
+
+ ((setq limit get-frame-for-buffer-default-instance-limit)
+ ;;
+ ;; This buffer's mode did not express a preference for a frame of a
+ ;; particular name, but the user wants a new frame rather than
+ ;; reusing the existing one.
+ (let* ((defname
+ (or (plist-get default-frame-plist 'name)
+ default-frame-name))
+ (frames
+ (sort (filtered-frame-list #'(lambda (x)
+ (or (frame-visible-p x)
+ (frame-iconified-p x))))
+ #'(lambda (s1 s2)
+ (cond ((and (frame-visible-p s1)
+ (not (frame-visible-p s2))))
+ ((and (eq (frame-visible-p s1) t)
+ (eq (frame-visible-p s2) 'hidden)))
+ ((and (frame-visible-p s2)
+ (not (frame-visible-p s1)))
+ nil)
+ ((and (equal (frame-name s1) defname)
+ (not (equal (frame-name s2) defname))))
+ ((and (equal (frame-name s2) defname)
+ (not (equal (frame-name s1) defname)))
+ nil)
+ ((frame-totally-visible-p s2)
+ nil)
+ (t))))))
+ ;; put the selected frame last. The user wants a new frame,
+ ;; so don't reuse the existing one unless forced to.
+ (setq frames (append (delq (selected-frame) frames) (list frames)))
+ (if (or (eq limit 0) ; means create with reckless abandon
+ (< (length frames) limit))
+ (get-frame-for-buffer-make-new-frame buffer)
+ (car frames))))
+
+ (not-this-window-p
+ (let ((w-list (windows-of-buffer buffer))
+ f w
+ (first-choice nil)
+ (second-choice (if get-frame-for-buffer-default-to-current
+ (selected-frame)
+ nil))
+ (last-resort nil))
+ (while (and w-list (null first-choice))
+ (setq w (car w-list)
+ f (window-frame w))
+ (cond ((eq w (selected-window)) nil)
+ ((not (frame-visible-p f))
+ (if (null last-resort)
+ (setq last-resort f)))
+ ((eq f (selected-frame))
+ (setq first-choice f))
+ ((null second-choice)
+ (setq second-choice f)))
+ (setq w-list (cdr w-list)))
+ (or first-choice second-choice last-resort)))
+
+ (get-frame-for-buffer-default-to-current (selected-frame))
+
+ (t
+ ;;
+ ;; This buffer's mode did not express a preference for a frame of a
+ ;; particular name. So try to find a frame already displaying this
+ ;; buffer.
+ ;;
+ (let ((w (or (get-buffer-window buffer nil) ; check current first
+ (get-buffer-window buffer 'visible) ; then visible
+ (get-buffer-window buffer 0)))) ; then iconic
+ (cond ((null w)
+ ;; It's not in any window - return nil, meaning no frame has
+ ;; preference.
+ nil)
+ (t
+ ;; Otherwise, return the frame of the buffer's window.
+ (window-frame w))))))))
+
+
+;; The pre-display-buffer-function is called for effect, so this needs to
+;; actually select the frame it wants. Fdisplay_buffer() takes notice of
+;; changes to the selected frame.
+(defun get-frame-for-buffer (buffer &optional not-this-window-p on-frame
+ shrink-to-fit)
+ "Select and return a frame in which to display BUFFER.
+Normally, the buffer will simply be displayed in the selected frame.
+But if the symbol naming the major-mode of the buffer has a 'frame-name
+property (which should be a symbol), then the buffer will be displayed in
+a frame of that name. If there is no frame of that name, then one is
+created.
+
+If the major-mode doesn't have a 'frame-name property, then the frame
+named by `get-frame-for-buffer-default-frame-name' will be used. If
+that is nil (the default) then the currently selected frame will used.
+
+If the frame-name symbol has an 'instance-limit property (an integer)
+then each time a buffer of the mode in question is displayed, a new frame
+with that name will be created, until there are `instance-limit' of them.
+If instance-limit is 0, then a new frame will be created each time.
+
+If a buffer is already displayed in a frame, then `instance-limit' is
+ignored, and that frame is used.
+
+If the frame-name symbol has a 'frame-defaults property, then that is
+prepended to the `default-frame-plist' when creating a frame for the
+first time.
+
+This function may be used as the value of `pre-display-buffer-function',
+to cause the `display-buffer' function and its callers to exhibit the
+above behavior."
+ (let ((frame (get-frame-for-buffer-noselect
+ buffer not-this-window-p on-frame)))
+ (if (not (eq frame (selected-frame)))
+ frame
+ (select-frame frame)
+ (or (frame-visible-p frame)
+ ;; If the frame was already visible, just focus on it.
+ ;; If it wasn't visible (it was just created, or it used
+ ;; to be iconified) then uniconify, raise, etc.
+ (make-frame-visible frame))
+ frame)))
+
+(defun frames-of-buffer (&optional buffer visible-only)
+ "Return list of frames that BUFFER is currently being displayed on.
+If the buffer is being displayed on the currently selected frame, that frame
+is first in the list. VISIBLE-ONLY will only list non-iconified frames."
+ (let ((list (windows-of-buffer buffer))
+ (cur-frame (selected-frame))
+ next-frame frames save-frame)
+
+ (while list
+ (if (memq (setq next-frame (window-frame (car list)))
+ frames)
+ nil
+ (if (eq cur-frame next-frame)
+ (setq save-frame next-frame)
+ (and
+ (or (not visible-only)
+ (frame-visible-p next-frame))
+ (setq frames (append frames (list next-frame))))))
+ (setq list (cdr list)))
+
+ (if save-frame
+ (append (list save-frame) frames)
+ frames)))
+
+(defcustom temp-buffer-shrink-to-fit nil
+ "*When non-nil resize temporary output buffers to minimize blank lines."
+ :type 'boolean
+ :group 'frames)
+
+(defcustom temp-buffer-max-height .5
+ "*Proportion of frame to use for temp windows."
+ :type 'number
+ :group 'frames)
+
+(defun show-temp-buffer-in-current-frame (buffer)
+ "For use as the value of `temp-buffer-show-function':
+always displays the buffer in the selected frame, regardless of the behavior
+that would otherwise be introduced by the `pre-display-buffer-function', which
+is normally set to `get-frame-for-buffer' (which see)."
+ (let ((pre-display-buffer-function nil)) ; turn it off, whatever it is
+ (let ((window (display-buffer buffer nil nil temp-buffer-shrink-to-fit)))
+ (if (not (eq (last-nonminibuf-frame) (window-frame window)))
+ ;; only the pre-display-buffer-function should ever do this.
+ (error "display-buffer switched frames on its own!!"))
+ (setq minibuffer-scroll-window window)
+ (set-window-start window 1) ; obeys narrowing
+ (set-window-point window 1)
+ nil)))
+
+(setq pre-display-buffer-function 'get-frame-for-buffer)
+(setq temp-buffer-show-function 'show-temp-buffer-in-current-frame)
+
+\f
+;; from Bob Weiner <bweiner@pts.mot.com>, modified by Ben Wing
+(defun delete-other-frames (&optional frame)
+ "Delete all but FRAME (or the selected frame)."
+ (interactive)
+ (mapc 'delete-frame (delq (or frame (selected-frame)) (frame-list))))
+
+;; By adding primitives to directly access the window hierarchy,
+;; we can move many functions into Lisp. We do it this way
+;; because the implementations are simpler in Lisp, and because
+;; new functions like this can be added without requiring C
+;; additions.
+
+(defun frame-utmost-window-2 (window position left-right-p major-end-p
+ minor-end-p)
+ ;; LEFT-RIGHT-P means we're looking for the leftmost or rightmost
+ ;; window, instead of the highest or lowest. In this case, we
+ ;; say that the "major axis" goes left-to-right instead of top-to-
+ ;; bottom. The "minor axis" always goes perpendicularly.
+ ;;
+ ;; If MAJOR-END-P is t, we're looking for a windows that abut the
+ ;; end (i.e. right or bottom) of the major axis, instead of the
+ ;; start.
+ ;;
+ ;; If MINOR-END-P is t, then we want to start counting from the
+ ;; end of the minor axis instead of the beginning.
+ ;;
+ ;; Here's the general idea: Imagine we're trying to count the number
+ ;; of windows that abut the top; call this function foo(). So, we
+ ;; start with the root window. If this is a vertical combination
+ ;; window, then foo() applied to the root window is the same as
+ ;; foo() applied to the first child. If the root is a horizontal
+ ;; combination window, then foo() applied to the root is the
+ ;; same as the sum of foo() applied to each of the children.
+ ;; Otherwise, the root window is a leaf window, and foo() is 1.
+ ;; Now it's clear that, each time foo() encounters a leaf window,
+ ;; it's encountering a different window that abuts the top.
+ ;; With a little examining, you can see that foo encounters the
+ ;; top-abutting windows in order from left to right. We can
+ ;; modify foo() to return the nth top-abutting window by simply
+ ;; keeping a global variable that is decremented each time
+ ;; foo() encounters a leaf window and would return 1. If the
+ ;; global counter gets to zero, we've encountered the window
+ ;; we were looking for, so we exit right away using a `throw'.
+ ;; Otherwise, we make sure that all normal paths return nil.
+
+ (let (child)
+ (cond ((setq child (if left-right-p
+ (window-first-hchild window)
+ (window-first-vchild window)))
+ (if major-end-p
+ (while (window-next-child child)
+ (setq child (window-next-child child))))
+ (frame-utmost-window-2 child position left-right-p major-end-p
+ minor-end-p))
+ ((setq child (if left-right-p
+ (window-first-vchild window)
+ (window-first-hchild window)))
+ (if minor-end-p
+ (while (window-next-child child)
+ (setq child (window-next-child child))))
+ (while child
+ (frame-utmost-window-2 child position left-right-p major-end-p
+ minor-end-p)
+ (setq child (if minor-end-p
+ (window-previous-child child)
+ (window-next-child child))))
+ nil)
+ (t
+ (setcar position (1- (car position)))
+ (if (= (car position) 0)
+ (throw 'fhw-exit window)
+ nil)))))
+
+(defun frame-utmost-window-1 (frame position left-right-p major-end-p)
+ (let (minor-end-p)
+ (or frame (setq frame (selected-frame)))
+ (or position (setq position 0))
+ (if (>= position 0)
+ (setq position (1+ position))
+ (setq minor-end-p t)
+ (setq position (- position)))
+ (catch 'fhw-exit
+ ;; we use a cons here as a simple form of call-by-reference.
+ ;; scheme has "boxes" for the same purpose.
+ (frame-utmost-window-2 (frame-root-window frame) (list position)
+ left-right-p major-end-p minor-end-p))))
+
+
+(defun frame-highest-window (&optional frame position)
+ "Return the highest window on FRAME which is at POSITION.
+If omitted, FRAME defaults to the currently selected frame.
+POSITION is used to distinguish between multiple windows that abut
+ the top of the frame: 0 means the leftmost window abutting the
+ top of the frame, 1 the next-leftmost, etc. POSITION can also
+ be less than zero: -1 means the rightmost window abutting the
+ top of the frame, -2 the next-rightmost, etc.
+If omitted, POSITION defaults to 0, i.e. the leftmost highest window.
+If there is no window at the given POSITION, return nil."
+ (frame-utmost-window-1 frame position nil nil))
+
+(defun frame-lowest-window (&optional frame position)
+ "Return the lowest window on FRAME which is at POSITION.
+If omitted, FRAME defaults to the currently selected frame.
+POSITION is used to distinguish between multiple windows that abut
+ the bottom of the frame: 0 means the leftmost window abutting the
+ bottom of the frame, 1 the next-leftmost, etc. POSITION can also
+ be less than zero: -1 means the rightmost window abutting the
+ bottom of the frame, -2 the next-rightmost, etc.
+If omitted, POSITION defaults to 0, i.e. the leftmost lowest window.
+If there is no window at the given POSITION, return nil."
+ (frame-utmost-window-1 frame position nil t))
+
+(defun frame-leftmost-window (&optional frame position)
+ "Return the leftmost window on FRAME which is at POSITION.
+If omitted, FRAME defaults to the currently selected frame.
+POSITION is used to distinguish between multiple windows that abut
+ the left edge of the frame: 0 means the highest window abutting the
+ left edge of the frame, 1 the next-highest, etc. POSITION can also
+ be less than zero: -1 means the lowest window abutting the
+ left edge of the frame, -2 the next-lowest, etc.
+If omitted, POSITION defaults to 0, i.e. the highest leftmost window.
+If there is no window at the given POSITION, return nil."
+ (frame-utmost-window-1 frame position t nil))
+
+(defun frame-rightmost-window (&optional frame position)
+ "Return the rightmost window on FRAME which is at POSITION.
+If omitted, FRAME defaults to the currently selected frame.
+POSITION is used to distinguish between multiple windows that abut
+ the right edge of the frame: 0 means the highest window abutting the
+ right edge of the frame, 1 the next-highest, etc. POSITION can also
+ be less than zero: -1 means the lowest window abutting the
+ right edge of the frame, -2 the next-lowest, etc.
+If omitted, POSITION defaults to 0, i.e. the highest rightmost window.
+If there is no window at the given POSITION, return nil."
+ (frame-utmost-window-1 frame position t t))
+
+\f
+
+;; frame properties.
+
+(defun set-frame-property (frame prop val)
+ "Set property PROP of FRAME to VAL. See `set-frame-properties'."
+ (set-frame-properties frame (list prop val)))
+
+(defun frame-height (&optional frame)
+ "Return number of lines available for display on FRAME."
+ (frame-property frame 'height))
+
+(defun frame-width (&optional frame)
+ "Return number of columns available for display on FRAME."
+ (frame-property frame 'width))
+
+(put 'cursor-color 'frame-property-alias [text-cursor background])
+(put 'modeline 'frame-property-alias 'has-modeline-p)
+
+\f
+(provide 'frame)
+
+;;; frame.el ends here
projects / chise / xemacs-chise.git- / blobdiff