;;; frame.el --- multi-frame management independent of window systems.
-;;;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1993, 1994, 1996, 1997, 2000 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; 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:
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 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.
-(defvar initial-frame-alist '((minibuffer . t))
- "Alist of frame parameters for creating the initial X window frame.
+;;; 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.
+(defcustom 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'.
You can specify geometry-related options for just the initial frame
by setting this variable in your `.emacs' file; however, they won't
-take affect until Emacs reads `.emacs', which happens after first creating
+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.
+ to override what you put in `default-frame-alist'."
+ :type '(repeat (cons :format "%v"
+ (symbol :tag "Parameter")
+ (sexp :tag "Value")))
+ :group 'frames)
+
+(defcustom 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.
+`default-frame-alist', for a minibuffer frame."
+ :type '(repeat (cons :format "%v"
+ (symbol :tag "Parameter")
+ (sexp :tag "Value")))
+ :group 'frames)
+
+(defcustom 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'.")
+These supersede the values given in `default-frame-alist',
+for pop-up frames."
+ :type '(repeat (cons :format "%v"
+ (symbol :tag "Parameter")
+ (sexp :tag "Value")))
+ :group 'frames)
(setq pop-up-frame-function
(function (lambda ()
(make-frame pop-up-frame-alist))))
-(defvar special-display-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
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'.")
-
-;; 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.
-(defun special-display-popup-frame (buffer)
- (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 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)))))
-
-(setq special-display-function 'special-display-popup-frame)
+These supersede the values given in `default-frame-alist'."
+ :type '(repeat (cons :format "%v"
+ (symbol :tag "Parameter")
+ (sexp :tag "Value")))
+ :group 'frames)
+
+(defun special-display-popup-frame (buffer &optional args)
+ "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."
+ (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))))))
+
+(defun handle-delete-frame (event)
+ "Handle delete-frame events from the X server."
+ (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))))
\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 parameters
;;; in initial-frame-alist to the frame.
-;; These are now called explicitly at the proper times,
+;; 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)
;;; file - if there is no frame with a minibuffer open now, create
;;; one to display messages while loading the init file.
(defun frame-initialize ()
-
+ "Create an initial frame if necessary."
;; Are we actually running under a window system at all?
- (if (and window-system (not noninteractive))
+ (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
(or (delq terminal-frame (minibuffer-frame-list))
(progn
(setq frame-initial-frame-alist
- (append initial-frame-alist default-frame-alist))
- ;; Record these with their default values
- ;; if they don't have any values explicitly.
- (or (assq 'vertical-scroll-bars frame-initial-frame-alist)
- (setq frame-initial-frame-alist
- (cons '(vertical-scroll-bars . t)
- frame-initial-frame-alist)))
+ (append initial-frame-alist default-frame-alist nil))
(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 initial-frame-alist)))
+ (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
+ ;; 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. Arrange to cause errors.
- (setq frame-creation-function
- (function
- (lambda (parameters)
- (error
- "Can't create multiple frames without a window system"))))))
-
+
+ ;; 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 'tty-create-frame-with-faces)
+ 'tty-create-frame-with-faces
+ (function
+ (lambda (parameters)
+ (error
+ "Can't create multiple frames without a window system"))))))))
+
+(defvar frame-notice-user-settings t
+ "Non-nil means function `frame-notice-user-settings' wasn't run yet.")
+
;;; 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 ()
-
+ "Act on user's init file settings of frame parameters.
+React to settings of `default-frame-alist', `initial-frame-alist' there."
;; Make menu-bar-mode and default-frame-alist consistent.
- (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))))
+ (when (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)))))
+
+ ;; Make tool-bar-mode and default-frame-alist consistent. Don't do
+ ;; it in batch mode since that would leave a tool-bar-lines
+ ;; parameter in default-frame-alist in a dumped Emacs, which is not
+ ;; what we want.
+ (when (and (boundp 'tool-bar-mode)
+ (not noninteractive))
+ (let ((default (assq 'tool-bar-lines default-frame-alist)))
+ (if default
+ (setq tool-bar-mode (not (eq (cdr default) 0)))
+ (setq default-frame-alist
+ (cons (cons 'tool-bar-lines (if tool-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
;; window is the minibuffer.
(let ((old-buffer (current-buffer)))
+ (when (and frame-notice-user-settings
+ (null frame-initial-frame))
+ ;; This case happens when we don't have a window system, and
+ ;; also for MS-DOS frames.
+ (let ((parms (frame-parameters frame-initial-frame)))
+ ;; Don't change the frame names.
+ (setq parms (delq (assq 'name parms) parms))
+ ;; Can't modify the minibuffer parameter, so don't try.
+ (setq parms (delq (assq 'minibuffer parms) parms))
+ (modify-frame-parameters nil
+ (if (null window-system)
+ (append initial-frame-alist
+ default-frame-alist
+ parms
+ nil)
+ ;; initial-frame-alist and
+ ;; default-frame-alist were already
+ ;; applied in pc-win.el.
+ parms))
+ (if (null window-system) ;; MS-DOS does this differently in pc-win.el
+ (let ((newparms (frame-parameters))
+ (frame (selected-frame)))
+ (tty-handle-reverse-video frame newparms)
+ ;; If we changed the background color, we need to update
+ ;; the background-mode parameter, and maybe some faces,
+ ;; too.
+ (when (assq 'background-color newparms)
+ (unless (or (assq 'background-mode initial-frame-alist)
+ (assq 'background-mode default-frame-alist))
+ (frame-set-background-mode frame))
+ (face-set-after-frame-default frame))))))
+
;; 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 (append initial-frame-alist
- default-frame-alist
- (frame-parameters frame-initial-frame)
- 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 (delq (assq 'height parms) parms)))
- (if (assq 'width frame-initial-geometry-arguments)
- (setq parms (delq (assq 'width parms) parms)))
- (if (assq 'left frame-initial-geometry-arguments)
- (setq parms (delq (assq 'left parms) parms)))
- (if (assq 'top frame-initial-geometry-arguments)
- (setq parms (delq (assq 'top parms) 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 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-frame (append minibuffer-frame-alist
- '((minibuffer . only)))))
-
- ;; 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))
- (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 (cdr (assq (car (car tail))
- frame-initial-frame-alist)))
- (setq newval (cdr (assq (car (car tail)) allparms)))
- (or (eq oldval newval)
- (setq newparms
- (cons (cons (car (car tail)) newval) newparms))))
- (setq tail (cdr tail)))
- (modify-frame-parameters frame-initial-frame
- (nreverse newparms)))))
+ (when (frame-live-p frame-initial-frame)
+
+ ;; When tool-bar has been switched off, correct the frame size
+ ;; by the lines added in x-create-frame for the tool-bar and
+ ;; switch `tool-bar-mode' off.
+ (when (and (display-graphic-p)
+ (or (eq 0 (cdr (assq 'tool-bar-lines initial-frame-alist)))
+ (eq 0 (cdr (assq 'tool-bar-lines default-frame-alist)))))
+ (let* ((char-height (frame-char-height frame-initial-frame))
+ (image-height 24)
+ (margin (cond ((and (consp tool-bar-button-margin)
+ (integerp (cdr tool-bar-button-margin))
+ (> tool-bar-button-margin 0))
+ (cdr tool-bar-button-margin))
+ ((and (integerp tool-bar-button-margin)
+ (> tool-bar-button-margin 0))
+ tool-bar-button-margin)
+ (t 0)))
+ (relief (if (and (integerp tool-bar-button-relief)
+ (> tool-bar-button-relief 0))
+ tool-bar-button-relief 3))
+ (lines (/ (+ image-height
+ (* 2 margin)
+ (* 2 relief)
+ (1- char-height))
+ char-height))
+ (height (frame-parameter frame-initial-frame 'height)))
+ (modify-frame-parameters frame-initial-frame
+ (list (cons 'height (- height lines))))
+ (tool-bar-mode -1)))
+
+
+ ;; 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 (assq-delete-all 'height parms)))
+ (if (assq 'width frame-initial-geometry-arguments)
+ (setq parms (assq-delete-all 'width parms)))
+ (if (assq 'left frame-initial-geometry-arguments)
+ (setq parms (assq-delete-all 'left parms)))
+ (if (assq 'top frame-initial-geometry-arguments)
+ (setq parms (assq-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 nil))
+ (if (assq 'height frame-initial-geometry-arguments)
+ (setq allparms (assq-delete-all 'height allparms)))
+ (if (assq 'width frame-initial-geometry-arguments)
+ (setq allparms (assq-delete-all 'width allparms)))
+ (if (assq 'left frame-initial-geometry-arguments)
+ (setq allparms (assq-delete-all 'left allparms)))
+ (if (assq 'top frame-initial-geometry-arguments)
+ (setq allparms (assq-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 we changed the background color,
+ ;; we need to update the background-mode parameter
+ ;; and maybe some faces too.
+ (when (assq 'background-color newparms)
+ (unless (assq 'background-mode newparms)
+ (frame-set-background-mode frame-initial-frame))
+ (face-set-after-frame-default 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-notice-user-settings nil)
(setq frame-initial-frame nil)))
-\f
+(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))))
+
;;;; 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 ()
+ "Return some frame other than the current frame.
+Create one if necessary. Note that the minibuffer frame, if separate,
+is not considered (see `next-frame')."
(let ((s (if (equal (next-frame (selected-frame)) (selected-frame))
(make-frame)
(next-frame (selected-frame)))))
(> (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.")
+
+(defvar after-setting-font-hook nil
+ "Functions to run after a frame's font has been changed.")
+
;; Alias, kept temporarily.
(defalias 'new-frame 'make-frame)
+
(defun make-frame (&optional parameters)
- "Create a new frame, displaying the current buffer.
+ "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:
-Optional argument PARAMETERS is an alist of parameters for the new
-frame. Specifically, PARAMETERS is a list of pairs, each having one
-of the following forms:
+ (name . STRING) The frame should be named STRING.
-\(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.
-\(height . NUMBER) - The frame should be NUMBER text lines high. If
- this parameter is present, the width parameter must also be
- given.
+You cannot specify either `width' or `height', you must use neither or both.
-\(width . NUMBER) - The frame should be NUMBER characters in width.
- If this parameter is present, the height parameter must also
- be given.
+ (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.
-\(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)
- (let ((nframe))
- (run-hooks 'before-make-frame-hook)
- (setq nframe (funcall frame-creation-function parameters))
- (run-hooks 'after-make-frame-hook)
- nframe))
+ (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)
+ (let* ((frames (frame-list))
+ (list frames))
(while (consp frames)
- (if (funcall predicate (car frames))
- (setq good-frames (cons (car frames) good-frames)))
+ (unless (funcall predicate (car frames))
+ (setcar frames nil))
(setq frames (cdr frames)))
- good-frames))
+ (delq nil list)))
(defun minibuffer-frame-list ()
"Return a list of all frames with their own minibuffers."
(function (lambda (frame)
(eq frame (window-frame (minibuffer-window frame)))))))
+(defun frames-on-display-list (&optional display)
+ "Return a list of all frames on DISPLAY.
+DISPLAY is a name of a display, a string of the form HOST:SERVER.SCREEN.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
+ (let* ((display (or display (frame-parameter nil 'display)))
+ (func #'(lambda (frame)
+ (eq (frame-parameter frame 'display) display))))
+ (filtered-frame-list func)))
+
+(defun framep-on-display (&optional display)
+ "Return the type of frames on DISPLAY.
+DISPLAY may be a display name or a frame. If it is a frame, its type is
+returned.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display.
+All frames on a given display are of the same type."
+ (or (framep display)
+ (framep (car (frames-on-display-list display)))))
+
(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',
(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.
(while (not (eq (frame-visible-p frame) t))
(setq frame (previous-frame frame)))
(setq arg (1+ arg)))
+ (select-frame frame)
+ (raise-frame frame)
+ ;; Ensure, if possible, that frame gets input focus.
+ (when (eq window-system 'w32)
+ (w32-focus-frame frame))
+ (cond (focus-follows-mouse
+ (unless (eq window-system 'w32)
+ (set-mouse-position (selected-frame) (1- (frame-width)) 0)))
+ (t
+ (when (eq window-system 'x)
+ (x-focus-frame frame))))))
+
+(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)
- (set-mouse-position (selected-frame) (1- (frame-width)) 0)
- (unfocus-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)))))
\f
;;;; Frame configurations
(progn
(modify-frame-parameters
frame
- ;; Since we can't set a frame's minibuffer status,
+ ;; 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)))
;; for where to put it.
(mapcar 'iconify-frame frames-to-delete)
(mapcar 'delete-frame frames-to-delete))))
-
-(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
;;;; Convenience functions for accessing and interactively changing
;;;; frame parameters.
If FRAME is omitted, describe the currently selected frame."
(cdr (assq 'width (frame-parameters frame))))
-(defun set-default-font (font-name)
- "Set the font of the selected frame to FONT.
-When called interactively, prompt for the name of the font to use."
- (interactive "sFont name: ")
+(defalias 'set-default-font 'set-frame-font)
+(defun set-frame-font (font-name)
+ "Set the font of the selected frame to FONT-NAME.
+When called interactively, prompt for the name of the font to use.
+To get the frame's current default font, use `frame-parameters'."
+ (interactive
+ (list
+ (let ((completion-ignore-case t))
+ (completing-read "Font name: "
+ (mapcar #'list
+ ;; x-list-fonts will fail with an error
+ ;; if this frame doesn't support fonts.
+ (x-list-fonts "*" nil (selected-frame)))))))
(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)))
+ (run-hooks 'after-setting-font-hook 'after-setting-font-hooks))
(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."
- (interactive "sColor: ")
+ "Set the background color of the selected frame to COLOR-NAME.
+When called interactively, prompt for the name of the color to use.
+To get the frame's current background color, use `frame-parameters'."
+ (interactive (list (facemenu-read-color)))
(modify-frame-parameters (selected-frame)
(list (cons 'background-color color-name))))
(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."
- (interactive "sColor: ")
+ "Set the foreground color of the selected frame to COLOR-NAME.
+When called interactively, prompt for the name of the color to use.
+To get the frame's current foreground color, use `frame-parameters'."
+ (interactive (list (facemenu-read-color)))
(modify-frame-parameters (selected-frame)
(list (cons 'foreground-color color-name))))
(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."
- (interactive "sColor: ")
+ "Set the text cursor color of the selected frame to COLOR-NAME.
+When called interactively, prompt for the name of the color to use.
+To get the frame's current cursor color, use `frame-parameters'."
+ (interactive (list (facemenu-read-color)))
(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."
- (interactive "sColor: ")
+ "Set the color of the mouse pointer of the selected frame to COLOR-NAME.
+When called interactively, prompt for the name of the color to use.
+To get the frame's current mouse color, use `frame-parameters'."
+ (interactive (list (facemenu-read-color)))
(modify-frame-parameters (selected-frame)
- (list (cons 'mouse-color color-name))))
+ (list (cons 'mouse-color
+ (or color-name
+ (cdr (assq 'mouse-color
+ (frame-parameters))))))))
(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."
- (interactive "sColor: ")
+ "Set the color of the border of the selected frame to COLOR-NAME.
+When called interactively, prompt for the name of the color to use.
+To get the frame's current border color, use `frame-parameters'."
+ (interactive (list (facemenu-read-color)))
(modify-frame-parameters (selected-frame)
(list (cons 'border-color color-name))))
(setq arg
(if (cdr (assq 'auto-raise (frame-parameters (selected-frame))))
-1 1)))
+ (if (> arg 0)
+ (raise-frame (selected-frame)))
(modify-frame-parameters (selected-frame)
(list (cons 'auto-raise (> arg 0)))))
-1 1)))
(modify-frame-parameters (selected-frame)
(list (cons 'auto-lower (> arg 0)))))
-
-(defun toggle-scroll-bar (arg)
- "Toggle whether or not the selected frame has vertical scroll bars.
-With arg, turn vertical scroll bars on if and only if arg is positive."
- (interactive "P")
- (if (null arg)
- (setq arg
- (if (cdr (assq 'vertical-scroll-bars
- (frame-parameters (selected-frame))))
- -1 1)))
+(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 'vertical-scroll-bars (> arg 0)))))
-
-(defun toggle-horizontal-scroll-bar (arg)
- "Toggle whether or not the selected frame has horizontal scroll bars.
-With arg, turn horizontal scroll bars on if and only if arg is positive.
-Horizontal scroll bars aren't implemented yet."
- (interactive "P")
- (error "Horizontal scroll bars aren't implemented yet"))
+ (list (cons 'name name))))
+\f
+;;;; Frame/display capabilities.
+(defun display-mouse-p (&optional display)
+ "Return non-nil if DISPLAY has a mouse available.
+DISPLAY can be a display name, a frame, or nil (meaning the selected
+frame's display)."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((eq frame-type 'pc)
+ (msdos-mouse-p))
+ ((eq system-type 'windows-nt)
+ (> w32-num-mouse-buttons 0))
+ ((memq frame-type '(x mac))
+ t) ;; We assume X and Mac *always* have a pointing device
+ (t
+ (or (and (featurep 'xt-mouse)
+ xterm-mouse-mode)
+ ;; t-mouse is distributed with the GPM package. It doesn't have
+ ;; a toggle.
+ (featurep 't-mouse))))))
+
+(defun display-popup-menus-p (&optional display)
+ "Return non-nil if popup menus are supported on DISPLAY.
+DISPLAY can be a display name, a frame, or nil (meaning the selected
+frame's display).
+Support for popup menus requires that the mouse be available."
+ (and
+ (let ((frame-type (framep-on-display display)))
+ (memq frame-type '(x w32 pc mac)))
+ (display-mouse-p display)))
+
+(defun display-graphic-p (&optional display)
+ "Return non-nil if DISPLAY is a graphic display.
+Graphical displays are those which are capable of displaying several
+frames and several different fonts at once. This is true for displays
+that use a window system such as X, and false for text-only terminals.
+DISPLAY can be a display name, a frame, or nil (meaning the selected
+frame's display)."
+ (not (null (memq (framep-on-display display) '(x w32 mac)))))
+
+(defalias 'display-multi-frame-p 'display-graphic-p)
+(defalias 'display-multi-font-p 'display-graphic-p)
+
+(defun display-selections-p (&optional display)
+ "Return non-nil if DISPLAY supports selections.
+A selection is a way to transfer text or other data between programs
+via special system buffers called `selection' or `cut buffer' or
+`clipboard'.
+DISPLAY can be a display name, a frame, or nil (meaning the selected
+frame's display)."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((eq frame-type 'pc)
+ ;; MS-DOG frames support selections when Emacs runs inside
+ ;; the Windows' DOS Box.
+ (not (null dos-windows-version)))
+ ((memq frame-type '(x w32 mac))
+ t) ;; FIXME?
+ (t
+ nil))))
+
+(defun display-screens (&optional display)
+ "Return the number of screens associated with DISPLAY."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32))
+ (x-display-screens display))
+ (t ;; FIXME: is this correct for the Mac?
+ 1))))
+
+(defun display-pixel-height (&optional display)
+ "Return the height of DISPLAY's screen in pixels.
+For character terminals, each character counts as a single pixel."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32 mac))
+ (x-display-pixel-height display))
+ (t
+ (frame-height (if (framep display) display (selected-frame)))))))
+
+(defun display-pixel-width (&optional display)
+ "Return the width of DISPLAY's screen in pixels.
+For character terminals, each character counts as a single pixel."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32 mac))
+ (x-display-pixel-width display))
+ (t
+ (frame-width (if (framep display) display (selected-frame)))))))
+
+(defun display-mm-height (&optional display)
+ "Return the height of DISPLAY's screen in millimeters.
+If the information is unavailable, value is nil."
+ (and (memq (framep-on-display display) '(x w32 mac))
+ (x-display-mm-height display)))
+
+(defun display-mm-width (&optional display)
+ "Return the width of DISPLAY's screen in millimeters.
+If the information is unavailable, value is nil."
+ (and (memq (framep-on-display display) '(x w32 mac))
+ (x-display-mm-width display)))
+
+(defun display-backing-store (&optional display)
+ "Return the backing store capability of DISPLAY's screen.
+The value may be `always', `when-mapped', `not-useful', or nil if
+the question is inapplicable to a certain kind of display."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32 mac))
+ (x-display-backing-store display))
+ (t
+ 'not-useful))))
+
+(defun display-save-under (&optional display)
+ "Return non-nil if DISPLAY's screen supports the SaveUnder feature."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32 mac))
+ (x-display-save-under display))
+ (t
+ 'not-useful))))
+
+(defun display-planes (&optional display)
+ "Return the number of planes supported by DISPLAY."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32 mac))
+ (x-display-planes display))
+ ((eq frame-type 'pc)
+ 4)
+ (t
+ (truncate (log (length (tty-color-alist)) 2))))))
+
+(defun display-color-cells (&optional display)
+ "Return the number of color cells supported by DISPLAY."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32 mac))
+ (x-display-color-cells display))
+ ((eq frame-type 'pc)
+ 16)
+ (t
+ (length (tty-color-alist))))))
+
+(defun display-visual-class (&optional display)
+ "Returns the visual class of DISPLAY.
+The value is one of the symbols `static-gray', `gray-scale',
+`static-color', `pseudo-color', `true-color', or `direct-color'."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((memq frame-type '(x w32 mac))
+ (x-display-visual-class display))
+ ((and (memq frame-type '(pc t))
+ (tty-display-color-p display))
+ 'static-color)
+ (t
+ 'static-gray))))
\f
;;;; Aliases for backward compatibility with Emacs 18.
(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\
+ "Obsolete function to change the size of the screen to COLS columns.
+Optional second arg non-nil means that redisplay should use COLS columns
+but that the idea of the actual width of the frame should not be changed.
+This function is provided only for compatibility with Emacs 18; new code
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-width' instead."
+ "Obsolete function to change the height of the screen to LINES lines.
+Optional second arg non-nil means that redisplay should use LINES lines
+but that the idea of the actual height of the screen should not be changed.
+This function is provided only for compatibility with Emacs 18; new code
+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)
+(defun delete-other-frames (&optional frame)
+ "Delete all frames except FRAME.
+FRAME nil or omitted means delete all frames except the selected frame."
+ (interactive)
+ (unless frame
+ (setq frame (selected-frame)))
+ (mapcar 'delete-frame (delq frame (frame-list))))
+
+
+(make-obsolete 'screen-height 'frame-height) ;before 19.15
+(make-obsolete 'screen-width 'frame-width) ;before 19.15
+(make-obsolete 'set-screen-width 'set-frame-width) ;before 19.15
+(make-obsolete 'set-screen-height 'set-frame-height) ;before 19.15
+
+\f
+;;; Highlighting trailing whitespace.
+(make-variable-buffer-local 'show-trailing-whitespace)
+
+(defcustom show-trailing-whitespace nil
+ "*Non-nil means highlight trailing whitespace in face `trailing-whitespace'."
+ :tag "Highlight trailing whitespace."
+ :set #'(lambda (symbol value) (set-default symbol value))
+ :type 'boolean
+ :group 'font-lock)
+
+
+\f
+;;; Scrolling
+
+(defgroup scrolling nil
+ "Scrolling windows."
+ :version "21.1"
+ :group 'frames)
+
+(defcustom automatic-hscrolling t
+ "*Allow or disallow autmatic scrolling windows horizontally.
+If non-nil, windows are automatically scrolled horizontally to make
+point visible."
+ :version "21.1"
+ :type 'boolean
+ :group 'scrolling)
+
+\f
+;;; Blinking cursor
+
+(defgroup cursor nil
+ "Displaying text cursors."
+ :version "21.1"
+ :group 'frames)
+
+(defcustom blink-cursor-delay 0.5
+ "*Seconds of idle time after which cursor starts to blink."
+ :tag "Delay in seconds."
+ :type 'number
+ :group 'cursor)
+
+(defcustom blink-cursor-interval 0.5
+ "*Length of cursor blink interval in seconds."
+ :tag "Blink interval in seconds."
+ :type 'number
+ :group 'cursor)
+
+(defvar blink-cursor-idle-timer nil
+ "Timer started after `blink-cursor-delay' seconds of Emacs idle time.
+The function `blink-cursor-start' is called when the timer fires.")
+
+(defvar blink-cursor-timer nil
+ "Timer started from `blink-cursor-start'.
+This timer calls `blink-cursor' every `blink-cursor-interval' seconds.")
+
+(defvar blink-cursor-mode nil
+ "Non-nil means blinking cursor is active.")
+
+(defun blink-cursor-mode (arg)
+ "Toggle blinking cursor mode.
+With a numeric argument, turn blinking cursor mode on iff ARG is positive.
+When blinking cursor mode is enabled, the cursor of the selected
+window blinks."
+ (interactive "P")
+ (let ((on-p (if (null arg)
+ (not blink-cursor-mode)
+ (> (prefix-numeric-value arg) 0))))
+ (if blink-cursor-idle-timer
+ (cancel-timer blink-cursor-idle-timer))
+ (if blink-cursor-timer
+ (cancel-timer blink-cursor-timer))
+ (setq blink-cursor-idle-timer nil
+ blink-cursor-timer nil
+ blink-cursor-mode nil)
+ (if on-p
+ (progn
+ ;; Hide the cursor.
+ ;(internal-show-cursor nil nil)
+ (setq blink-cursor-idle-timer
+ (run-with-idle-timer blink-cursor-delay
+ blink-cursor-delay
+ 'blink-cursor-start))
+ (setq blink-cursor-mode t))
+ (internal-show-cursor nil t))))
+
+;; Note that this is really initialized from startup.el before
+;; the init-file is read.
+
+(defcustom blink-cursor nil
+ "*Non-nil means blinking cursor mode is active."
+ :group 'cursor
+ :tag "Blinking cursor"
+ :type 'boolean
+ :set #'(lambda (symbol value)
+ (set-default symbol value)
+ (blink-cursor-mode (or value 0))))
+
+(defun blink-cursor-start ()
+ "Timer function called from the timer `blink-cursor-idle-timer'.
+This starts the timer `blink-cursor-timer', which makes the cursor blink
+if appropriate. It also arranges to cancel that timer when the next
+command starts, by installing a pre-command hook."
+ (when (null blink-cursor-timer)
+ (add-hook 'pre-command-hook 'blink-cursor-end)
+ (setq blink-cursor-timer
+ (run-with-timer blink-cursor-interval blink-cursor-interval
+ 'blink-cursor-timer-function))))
+
+(defun blink-cursor-timer-function ()
+ "Timer function of timer `blink-cursor-timer'."
+ (internal-show-cursor nil (not (internal-show-cursor-p))))
+
+(defun blink-cursor-end ()
+ "Stop cursor blinking.
+This is installed as a pre-command hook by `blink-cursor-start'.
+When run, it cancels the timer `blink-cursor-timer' and removes
+itself as a pre-command hook."
+ (remove-hook 'pre-command-hook 'blink-cursor-end)
+ (internal-show-cursor nil t)
+ (cancel-timer blink-cursor-timer)
+ (setq blink-cursor-timer nil))
+
+
+\f
+;;; Busy-cursor.
+
+(defcustom busy-cursor t
+ "*Non-nil means show a busy-cursor when running under a window system."
+ :tag "Busy-cursor"
+ :type 'boolean
+ :group 'cursor
+ :get #'(lambda (symbol) display-busy-cursor)
+ :set #'(lambda (symbol value)
+ (set-default symbol value)
+ (setq display-busy-cursor value)))
+
+(defcustom busy-cursor-delay-seconds 1
+ "*Seconds to wait before displaying a busy-cursor."
+ :tag "Busy-cursor delay"
+ :type 'number
+ :group 'cursor
+ :get #'(lambda (symbol) busy-cursor-delay)
+ :set #'(lambda (symbol value)
+ (set-default symbol value)
+ (setq busy-cursor-delay value)))
+
+\f
+(defcustom show-cursor-in-non-selected-windows t
+ "*Non-nil means show a hollow box cursor in non-selected-windows.
+If nil, don't show a cursor except in the selected window.
+Setting this variable directly has no effect; use custom instead
+(or set the variable `cursor-in-non-selected-windows')."
+ :tag "Cursor in non-selected windows"
+ :type 'boolean
+ :group 'cursor
+ :get #'(lambda (symbol) cursor-in-non-selected-windows)
+ :set #'(lambda (symbol value)
+ (set-default symbol value)
+ (setq cursor-in-non-selected-windows value)
+ (force-mode-line-update t)))
+
\f
;;;; Key bindings
-(defvar ctl-x-5-map (make-sparse-keymap)
- "Keymap for frame commands.")
-(defalias 'ctl-x-5-prefix ctl-x-5-map)
-(define-key ctl-x-map "5" 'ctl-x-5-prefix)
-(define-key ctl-x-5-map "2" 'make-frame)
+(define-key ctl-x-5-map "2" 'make-frame-command)
+(define-key ctl-x-5-map "1" 'delete-other-frames)
(define-key ctl-x-5-map "0" 'delete-frame)
(define-key ctl-x-5-map "o" 'other-frame)
HCoop / bpt / emacs.git / blobdiff