mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-22 10:26:20 +00:00
764 lines
30 KiB
EmacsLisp
764 lines
30 KiB
EmacsLisp
;;; frame.el --- multi-frame management independent of window systems.
|
||
|
||
;; Copyright (C) 1993, 1994, 1996, 1997 Free Software Foundation, Inc.
|
||
|
||
;; Maintainer: FSF
|
||
;; Keywords: internal
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; GNU Emacs 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.
|
||
|
||
;; GNU Emacs 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.
|
||
|
||
;;; Code:
|
||
|
||
(defvar frame-creation-function nil
|
||
"Window-system dependent function to call to create a new frame.
|
||
The window system startup file should set this to its frame creation
|
||
function, which should take an alist of parameters as its argument.")
|
||
|
||
;;; The initial value given here for used to ask for a minibuffer.
|
||
;;; But that's not necessary, because the default is to have one.
|
||
;;; By not specifying it here, we let an X resource specify it.
|
||
(defvar initial-frame-alist nil
|
||
"Alist of frame parameters for creating the initial X window frame.
|
||
You can set this in your `.emacs' file; for example,
|
||
(setq initial-frame-alist '((top . 1) (left . 1) (width . 80) (height . 55)))
|
||
Parameters specified here supersede the values given in `default-frame-alist'.
|
||
|
||
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-alist'.
|
||
|
||
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-alist' to override these options so that they
|
||
don't affect subsequent frames.
|
||
* Set `initial-frame-alist' in a way that matches the X resources,
|
||
to override what you put in `default-frame-alist'.")
|
||
|
||
(defvar minibuffer-frame-alist '((width . 80) (height . 2))
|
||
"Alist of frame parameters for initially creating a minibuffer frame.
|
||
You can set this in your `.emacs' file; for example,
|
||
(setq minibuffer-frame-alist
|
||
'((top . 1) (left . 1) (width . 80) (height . 2)))
|
||
Parameters specified here supersede the values given in
|
||
`default-frame-alist'.")
|
||
|
||
(defvar pop-up-frame-alist nil
|
||
"Alist of frame parameters 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-alist '((width . 80) (height . 20)))
|
||
These supersede the values given in `default-frame-alist'.")
|
||
|
||
(setq pop-up-frame-function
|
||
(function (lambda ()
|
||
(make-frame pop-up-frame-alist))))
|
||
|
||
(defcustom special-display-frame-alist
|
||
'((height . 14) (width . 80) (unsplittable . t))
|
||
"*Alist of frame parameters 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-alist '((width . 80) (height . 20)))
|
||
These supersede the values given in `default-frame-alist'."
|
||
:type '(repeat (cons :format "%v"
|
||
(symbol :tag "Parameter")
|
||
(sexp :tag "Value")))
|
||
:group 'frames)
|
||
|
||
;; 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 an alist, use it as a list of frame parameter specs.
|
||
;; If ARGS is a list whose car is a symbol,
|
||
;; use (car ARGS) as a function to do the work.
|
||
;; Pass it BUFFER as first arg, and (cdr ARGS) gives the rest of the args.
|
||
(defun special-display-popup-frame (buffer &optional args)
|
||
(if (and args (symbolp (car args)))
|
||
(apply (car args) buffer (cdr 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 args special-display-frame-alist))))
|
||
(set-window-buffer (frame-selected-window frame) buffer)
|
||
(set-window-dedicated-p (frame-selected-window frame) t)
|
||
(frame-selected-window 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)
|
||
;; Gildea@x.org says it is ok to ask questions before terminating.
|
||
(save-buffers-kill-emacs))))
|
||
|
||
;;;; 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 parameters
|
||
;;; in initial-frame-alist 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 parameters used in frame-initialize to make the initial frame.
|
||
(defvar frame-initial-frame-alist)
|
||
|
||
(defvar frame-initial-geometry-arguments nil)
|
||
|
||
;;; 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 ()
|
||
|
||
;; Are we actually running under a window system at all?
|
||
(if (and window-system (not noninteractive) (not (eq window-system 'pc)))
|
||
(progn
|
||
;; Turn on special-display processing only if there's a window system.
|
||
(setq special-display-function 'special-display-popup-frame)
|
||
|
||
;; 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-alist omit the
|
||
;; minibuffer spec.
|
||
(or (delq terminal-frame (minibuffer-frame-list))
|
||
(progn
|
||
(setq frame-initial-frame-alist
|
||
(append initial-frame-alist default-frame-alist))
|
||
(or (assq 'horizontal-scroll-bars frame-initial-frame-alist)
|
||
(setq frame-initial-frame-alist
|
||
(cons '(horizontal-scroll-bars . t)
|
||
frame-initial-frame-alist)))
|
||
(setq default-minibuffer-frame
|
||
(setq frame-initial-frame
|
||
(make-frame frame-initial-frame-alist)))
|
||
;; Delete any specifications for window geometry parameters
|
||
;; 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-alist
|
||
(frame-remove-geometry-params initial-frame-alist))))
|
||
;; At this point, we know that we have a frame open, so we
|
||
;; can delete the terminal frame.
|
||
(delete-frame terminal-frame)
|
||
(setq terminal-frame nil))
|
||
|
||
;; No, we're not running a window system. Use make-terminal-frame if
|
||
;; we support that feature, otherwise arrange to cause errors.
|
||
(or (eq window-system 'pc)
|
||
(setq frame-creation-function
|
||
(if (fboundp 'make-terminal-frame)
|
||
'make-terminal-frame
|
||
(function
|
||
(lambda (parameters)
|
||
(error
|
||
"Can't create multiple frames without a window system"))))))))
|
||
|
||
;;; startup.el calls this function after loading the user's init
|
||
;;; file. Now default-frame-alist and initial-frame-alist contain
|
||
;;; information to which we must react; do what needs to be done.
|
||
(defun frame-notice-user-settings ()
|
||
|
||
;; Make menu-bar-mode and default-frame-alist consistent.
|
||
(if (boundp 'menu-bar-mode)
|
||
(let ((default (assq 'menu-bar-lines default-frame-alist)))
|
||
(if default
|
||
(setq menu-bar-mode (not (eq (cdr default) 0)))
|
||
(setq default-frame-alist
|
||
(cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
|
||
default-frame-alist)))))
|
||
|
||
;; 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-alist
|
||
;; and default-frame-alist 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 current frame and make a
|
||
;; new one; you can't remove or add a root window to/from an
|
||
;; existing frame.
|
||
;;
|
||
;; NOTE: default-frame-alist was nil when we created the
|
||
;; existing frame. We need to explicitly include
|
||
;; default-frame-alist in the parameters 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 (cdr (or (assq 'minibuffer initial-frame-alist)
|
||
(assq 'minibuffer default-frame-alist)
|
||
'(minibuffer . t)))
|
||
t))
|
||
;; Create the new frame.
|
||
(let (parms new)
|
||
;; 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.
|
||
(while (not (cdr (assq 'visibility
|
||
(frame-parameters frame-initial-frame))))
|
||
(sleep-for 1))
|
||
(setq parms (frame-parameters frame-initial-frame))
|
||
;; Get rid of `name' unless it was specified explicitly before.
|
||
(or (assq 'name frame-initial-frame-alist)
|
||
(setq parms (delq (assq 'name parms) parms)))
|
||
(setq parms (append initial-frame-alist
|
||
default-frame-alist
|
||
parms
|
||
nil))
|
||
;; Get rid of `reverse', because that was handled
|
||
;; when we first made the frame.
|
||
(setq parms (cons '(reverse) (delq (assq 'reverse parms) parms)))
|
||
(if (assq 'height frame-initial-geometry-arguments)
|
||
(setq parms (frame-delete-all 'height parms)))
|
||
(if (assq 'width frame-initial-geometry-arguments)
|
||
(setq parms (frame-delete-all 'width parms)))
|
||
(if (assq 'left frame-initial-geometry-arguments)
|
||
(setq parms (frame-delete-all 'left parms)))
|
||
(if (assq 'top frame-initial-geometry-arguments)
|
||
(setq parms (frame-delete-all 'top parms)))
|
||
(setq new
|
||
(make-frame
|
||
;; Use the geometry args that created the existing
|
||
;; frame, rather than the parms we get for it.
|
||
(append frame-initial-geometry-arguments
|
||
'((user-size . t) (user-position . t))
|
||
parms)))
|
||
;; 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
|
||
(function (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
|
||
(function
|
||
(lambda (frame)
|
||
(eq (cdr (assq 'minibuffer
|
||
(frame-parameters frame)))
|
||
'only))))
|
||
(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
|
||
(function
|
||
(lambda (frame)
|
||
(modify-frame-parameters
|
||
frame (list (cons 'minibuffer new-minibuffer)))))
|
||
users-of-initial))))
|
||
|
||
;; Redirect events enqueued at this frame to the new frame.
|
||
;; Is this a good idea?
|
||
(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 parameters.
|
||
(let (newparms allparms tail)
|
||
(setq allparms (append initial-frame-alist
|
||
default-frame-alist))
|
||
(if (assq 'height frame-initial-geometry-arguments)
|
||
(setq allparms (frame-delete-all 'height allparms)))
|
||
(if (assq 'width frame-initial-geometry-arguments)
|
||
(setq allparms (frame-delete-all 'width allparms)))
|
||
(if (assq 'left frame-initial-geometry-arguments)
|
||
(setq allparms (frame-delete-all 'left allparms)))
|
||
(if (assq 'top frame-initial-geometry-arguments)
|
||
(setq allparms (frame-delete-all 'top allparms)))
|
||
(setq tail allparms)
|
||
;; Find just the parms that have changed since we first
|
||
;; made this frame. Those are the ones actually set by
|
||
;; the init file. For those parms 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 (assq (car (car tail))
|
||
frame-initial-frame-alist))
|
||
(setq newval (cdr (assq (car (car tail)) allparms)))
|
||
(or (and oldval (eq (cdr oldval) newval))
|
||
(setq newparms
|
||
(cons (cons (car (car tail)) newval) newparms))))
|
||
(setq tail (cdr tail)))
|
||
(setq newparms (nreverse newparms))
|
||
(modify-frame-parameters frame-initial-frame
|
||
newparms)
|
||
(if (assq 'font newparms)
|
||
(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 (display)
|
||
(let ((parms (append minibuffer-frame-alist '((minibuffer . only)))))
|
||
(if display
|
||
(make-frame-on-display display parms)
|
||
(make-frame parms))))
|
||
|
||
;; Delete from ALIST all elements whose car is KEY.
|
||
;; Return the modified alist.
|
||
(defun frame-delete-all (key alist)
|
||
(setq alist (copy-sequence alist))
|
||
(let ((tail alist))
|
||
(while tail
|
||
(if (eq (car (car tail)) key)
|
||
(setq alist (delq (car tail) alist)))
|
||
(setq tail (cdr tail)))
|
||
alist))
|
||
|
||
;;;; Creation of additional frames, and other frame miscellanea
|
||
|
||
;;; Return some frame other than the current frame, creating one if
|
||
;;; necessary. Note that the minibuffer frame, if separate, is not
|
||
;;; considered (see next-frame).
|
||
(defun get-other-frame ()
|
||
(let ((s (if (equal (next-frame (selected-frame)) (selected-frame))
|
||
(make-frame)
|
||
(next-frame (selected-frame)))))
|
||
s))
|
||
|
||
(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-display (display &optional parameters)
|
||
"Make a frame on display DISPLAY.
|
||
The optional second argument PARAMETERS specifies additional frame parameters."
|
||
(interactive "sMake frame on display: ")
|
||
(or (string-match "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display)
|
||
(error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN"))
|
||
(make-frame (cons (cons 'display display) parameters)))
|
||
|
||
(defun make-frame-command ()
|
||
"Make a new frame, and select it if the terminal displays only one frame."
|
||
(interactive)
|
||
(if (and window-system (not (eq window-system 'pc)))
|
||
(make-frame)
|
||
(select-frame (make-frame))))
|
||
|
||
(defvar before-make-frame-hook nil
|
||
"Functions to run before a frame is created.")
|
||
|
||
(defvar after-make-frame-functions nil
|
||
"Functions to run after a frame is created.
|
||
The functions are run with one arg, the newly created frame.")
|
||
|
||
;; Alias, kept temporarily.
|
||
(defalias 'new-frame 'make-frame)
|
||
|
||
(defun make-frame (&optional parameters)
|
||
"Return a newly created frame displaying the current buffer.
|
||
Optional argument PARAMETERS is an alist of parameters for the new frame.
|
||
Each element of PARAMETERS should have the form (NAME . VALUE), for example:
|
||
|
||
(name . STRING) The frame should be named STRING.
|
||
|
||
(width . NUMBER) The frame should be NUMBER characters in width.
|
||
(height . NUMBER) The frame should be NUMBER text lines high.
|
||
|
||
You cannot specify either `width' or `height', you must use neither or both.
|
||
|
||
(minibuffer . t) The frame should have a minibuffer.
|
||
(minibuffer . nil) The frame should have no minibuffer.
|
||
(minibuffer . only) The frame should contain only a minibuffer.
|
||
(minibuffer . WINDOW) The frame should use WINDOW as its minibuffer window.
|
||
|
||
Before the frame is created (via `frame-creation-function'), functions on the
|
||
hook `before-make-frame-hook' are run. After the frame is created, functions
|
||
on `after-make-frame-functions' are run with one arg, the newly created frame."
|
||
(interactive)
|
||
(run-hooks 'before-make-frame-hook)
|
||
(let ((frame (funcall frame-creation-function parameters)))
|
||
(run-hook-with-args 'after-make-frame-functions frame)
|
||
frame))
|
||
|
||
(defun filtered-frame-list (predicate)
|
||
"Return a list of all live frames which satisfy PREDICATE."
|
||
(let ((frames (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 ()
|
||
"Return a list of all frames with their own minibuffers."
|
||
(filtered-frame-list
|
||
(function (lambda (frame)
|
||
(eq frame (window-frame (minibuffer-window frame)))))))
|
||
|
||
(defun frame-remove-geometry-params (param-list)
|
||
"Return the parameter list PARAM-LIST, but with geometry specs removed.
|
||
This deletes all bindings in PARAM-LIST for `top', `left', `width',
|
||
`height', `user-size' and `user-position' parameters.
|
||
Emacs uses this to avoid overriding explicit moves and resizings from
|
||
the user during startup."
|
||
(setq param-list (cons nil param-list))
|
||
(let ((tail param-list))
|
||
(while (consp (cdr tail))
|
||
(if (and (consp (car (cdr tail)))
|
||
(memq (car (car (cdr tail)))
|
||
'(height width top left user-position user-size)))
|
||
(progn
|
||
(setq frame-initial-geometry-arguments
|
||
(cons (car (cdr tail)) frame-initial-geometry-arguments))
|
||
(setcdr tail (cdr (cdr tail))))
|
||
(setq tail (cdr tail)))))
|
||
(setq frame-initial-geometry-arguments
|
||
(nreverse frame-initial-geometry-arguments))
|
||
(cdr param-list))
|
||
|
||
|
||
(defcustom focus-follows-mouse t
|
||
"*Non-nil if window system changes focus when you move the mouse."
|
||
:type 'boolean
|
||
:group 'frames
|
||
:version "20.3")
|
||
|
||
(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."
|
||
(interactive "p")
|
||
(let ((frame (selected-frame)))
|
||
(while (> arg 0)
|
||
(setq frame (next-frame frame))
|
||
(while (not (eq (frame-visible-p frame) t))
|
||
(setq frame (next-frame frame)))
|
||
(setq arg (1- arg)))
|
||
(while (< arg 0)
|
||
(setq frame (previous-frame frame))
|
||
(while (not (eq (frame-visible-p frame) t))
|
||
(setq frame (previous-frame frame)))
|
||
(setq arg (1+ arg)))
|
||
(raise-frame frame)
|
||
(select-frame frame)
|
||
;; Ensure, if possible, that frame gets input focus.
|
||
(if (eq window-system 'w32)
|
||
(w32-focus-frame frame)
|
||
(when focus-follows-mouse
|
||
(set-mouse-position (selected-frame) (1- (frame-width)) 0)))))
|
||
|
||
(defun make-frame-names-alist ()
|
||
(let* ((current-frame (selected-frame))
|
||
(falist
|
||
(cons
|
||
(cons (frame-parameter current-frame 'name) current-frame) nil))
|
||
(frame (next-frame nil t)))
|
||
(while (not (eq frame current-frame))
|
||
(progn
|
||
(setq falist (cons (cons (frame-parameter frame 'name) frame) falist))
|
||
(setq frame (next-frame frame t))))
|
||
falist))
|
||
|
||
(defvar frame-name-history nil)
|
||
(defun select-frame-by-name (name)
|
||
"Select the frame whose name is NAME and raise it.
|
||
If there is no frame by that name, signal an error."
|
||
(interactive
|
||
(let* ((frame-names-alist (make-frame-names-alist))
|
||
(default (car (car frame-names-alist)))
|
||
(input (completing-read
|
||
(format "Select Frame (default %s): " default)
|
||
frame-names-alist nil t nil 'frame-name-history)))
|
||
(if (= (length input) 0)
|
||
(list default)
|
||
(list input))))
|
||
(let* ((frame-names-alist (make-frame-names-alist))
|
||
(frame (cdr (assoc name frame-names-alist))))
|
||
(or frame
|
||
(error "There is no frame named `%s'" name))
|
||
(make-frame-visible frame)
|
||
(raise-frame frame)
|
||
(select-frame frame)))
|
||
|
||
;;;; 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 ALIST WINDOW-CONFIG),
|
||
where
|
||
FRAME is a frame object,
|
||
ALIST is an association list specifying some of FRAME's parameters, and
|
||
WINDOW-CONFIG is a window configuration object for FRAME."
|
||
(cons 'frame-configuration
|
||
(mapcar (function
|
||
(lambda (frame)
|
||
(list frame
|
||
(frame-parameters 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 parameters 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-alist (cdr configuration))
|
||
frames-to-delete)
|
||
(mapcar (function
|
||
(lambda (frame)
|
||
(let ((parameters (assq frame config-alist)))
|
||
(if parameters
|
||
(progn
|
||
(modify-frame-parameters
|
||
frame
|
||
;; Since we can't set a frame's minibuffer status,
|
||
;; we might as well omit the parameter altogether.
|
||
(let* ((parms (nth 1 parameters))
|
||
(mini (assq 'minibuffer parms)))
|
||
(if mini (setq parms (delq mini parms)))
|
||
parms))
|
||
(set-window-configuration (nth 2 parameters)))
|
||
(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.
|
||
(mapcar 'iconify-frame frames-to-delete)
|
||
(mapcar 'delete-frame frames-to-delete))))
|
||
|
||
;;;; Convenience functions for accessing and interactively changing
|
||
;;;; frame parameters.
|
||
|
||
(defun frame-parameter (frame parameter)
|
||
"Return FRAME's value for parameter PARAMETER.
|
||
If FRAME is omitted, describe the currently selected frame."
|
||
(cdr (assq parameter (frame-parameters frame))))
|
||
|
||
(defun frame-height (&optional frame)
|
||
"Return number of lines available for display on FRAME.
|
||
If FRAME is omitted, describe the currently selected frame."
|
||
(cdr (assq 'height (frame-parameters frame))))
|
||
|
||
(defun frame-width (&optional frame)
|
||
"Return number of columns available for display on FRAME.
|
||
If FRAME is omitted, describe the currently selected frame."
|
||
(cdr (assq 'width (frame-parameters frame))))
|
||
|
||
(defalias 'set-default-font 'set-frame-font)
|
||
(defun set-frame-font (font-name)
|
||
"Set the font of the selected frame to FONT.
|
||
When called interactively, prompt for the name of the font to use.
|
||
To get the frame's current default font, use `frame-parameters'."
|
||
(interactive "sFont name: ")
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'font font-name)))
|
||
;; Update faces that want a bold or italic version of the default font.
|
||
(frame-update-faces (selected-frame)))
|
||
|
||
(defun set-background-color (color-name)
|
||
"Set the background color of the selected frame to COLOR.
|
||
When called interactively, prompt for the name of the color to use.
|
||
To get the frame's current background color, use `frame-parameters'."
|
||
(interactive "sColor: ")
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'background-color color-name)))
|
||
(frame-update-face-colors (selected-frame)))
|
||
|
||
(defun set-foreground-color (color-name)
|
||
"Set the foreground color of the selected frame to COLOR.
|
||
When called interactively, prompt for the name of the color to use.
|
||
To get the frame's current foreground color, use `frame-parameters'."
|
||
(interactive "sColor: ")
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'foreground-color color-name)))
|
||
(frame-update-face-colors (selected-frame)))
|
||
|
||
(defun set-cursor-color (color-name)
|
||
"Set the text cursor color of the selected frame to COLOR.
|
||
When called interactively, prompt for the name of the color to use.
|
||
To get the frame's current cursor color, use `frame-parameters'."
|
||
(interactive "sColor: ")
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'cursor-color color-name))))
|
||
|
||
(defun set-mouse-color (color-name)
|
||
"Set the color of the mouse pointer of the selected frame to COLOR.
|
||
When called interactively, prompt for the name of the color to use.
|
||
To get the frame's current mouse color, use `frame-parameters'."
|
||
(interactive "sColor: ")
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'mouse-color color-name))))
|
||
|
||
(defun set-border-color (color-name)
|
||
"Set the color of the border of the selected frame to COLOR.
|
||
When called interactively, prompt for the name of the color to use.
|
||
To get the frame's current border color, use `frame-parameters'."
|
||
(interactive "sColor: ")
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'border-color color-name))))
|
||
|
||
(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 (cdr (assq 'auto-raise (frame-parameters (selected-frame))))
|
||
-1 1)))
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons '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 (cdr (assq 'auto-lower (frame-parameters (selected-frame))))
|
||
-1 1)))
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'auto-lower (> arg 0)))))
|
||
(defun set-frame-name (name)
|
||
"Set the name of the selected frame to NAME.
|
||
When called interactively, prompt for the name of the frame.
|
||
The frame name is displayed on the modeline if the terminal displays only
|
||
one frame, otherwise the name is displayed on the frame's caption bar."
|
||
(interactive "sFrame name: ")
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'name name))))
|
||
|
||
;;;; Aliases for backward compatibility with Emacs 18.
|
||
(defalias 'screen-height 'frame-height)
|
||
(defalias 'screen-width 'frame-width)
|
||
|
||
(defun set-screen-width (cols &optional pretend)
|
||
"Obsolete function to change the size of the screen to COLS columns.\n\
|
||
Optional second arg non-nil means that redisplay should use COLS columns\n\
|
||
but that the idea of the actual width of the frame should not be changed.\n\
|
||
This function is provided only for compatibility with Emacs 18; new code\n\
|
||
should use `set-frame-width instead'."
|
||
(set-frame-width (selected-frame) cols pretend))
|
||
|
||
(defun set-screen-height (lines &optional pretend)
|
||
"Obsolete function to change the height of the screen to LINES lines.\n\
|
||
Optional second arg non-nil means that redisplay should use LINES lines\n\
|
||
but that the idea of the actual height of the screen should not be changed.\n\
|
||
This function is provided only for compatibility with Emacs 18; new code\n\
|
||
should use `set-frame-height' instead."
|
||
(set-frame-height (selected-frame) lines pretend))
|
||
|
||
(make-obsolete 'screen-height 'frame-height)
|
||
(make-obsolete 'screen-width 'frame-width)
|
||
(make-obsolete 'set-screen-width 'set-frame-width)
|
||
(make-obsolete 'set-screen-height 'set-frame-height)
|
||
|
||
|
||
;;;; Key bindings
|
||
|
||
(define-key ctl-x-5-map "2" 'make-frame-command)
|
||
(define-key ctl-x-5-map "0" 'delete-frame)
|
||
(define-key ctl-x-5-map "o" 'other-frame)
|
||
|
||
(provide 'frame)
|
||
|
||
;;; frame.el ends here
|