mirror of
https://git.savannah.gnu.org/git/emacs.git
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f44379e7fe
* emacs-lisp/easy-mmode.el (define-minor-mode): Add :variable keyword. * emacs-lisp/cl-macs.el (terminal-parameter, eq): Add setf method. * international/iso-ascii.el (iso-ascii-mode): * frame.el (auto-raise-mode, auto-lower-mode): * composite.el (global-auto-composition-mode): Use define-minor-mode.
1665 lines
65 KiB
EmacsLisp
1665 lines
65 KiB
EmacsLisp
;;; frame.el --- multi-frame management independent of window systems
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;; Copyright (C) 1993, 1994, 1996, 1997, 2000, 2001, 2002, 2003,
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;; 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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;; Maintainer: FSF
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;; Keywords: internal
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(eval-when-compile (require 'cl))
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(defvar frame-creation-function-alist
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(list (cons nil
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(if (fboundp 'tty-create-frame-with-faces)
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'tty-create-frame-with-faces
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(lambda (parameters)
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(error "Can't create multiple frames without a window system")))))
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"Alist of window-system dependent functions to call to create a new frame.
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The window system startup file should add its frame creation
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function to this list, which should take an alist of parameters
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as its argument.")
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(defvar window-system-default-frame-alist nil
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"Alist of window-system dependent default frame parameters.
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You can set this in your init file; for example,
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;; Disable menubar and toolbar on the console, but enable them under X.
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(setq window-system-default-frame-alist
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'((x (menu-bar-lines . 1) (tool-bar-lines . 1))
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(nil (menu-bar-lines . 0) (tool-bar-lines . 0))))
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Parameters specified here supersede the values given in
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`default-frame-alist'.")
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;; The initial value given here used to ask for a minibuffer.
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;; But that's not necessary, because the default is to have one.
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;; By not specifying it here, we let an X resource specify it.
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(defcustom initial-frame-alist nil
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"Alist of parameters for the initial X window frame.
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You can set this in your init file; for example,
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(setq initial-frame-alist
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'((top . 1) (left . 1) (width . 80) (height . 55)))
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Parameters specified here supersede the values given in
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`default-frame-alist'.
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If the value calls for a frame without a minibuffer, and you have
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not created a minibuffer frame on your own, a minibuffer frame is
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created according to `minibuffer-frame-alist'.
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You can specify geometry-related options for just the initial
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frame by setting this variable in your init file; however, they
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won't take effect until Emacs reads your init file, which happens
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after creating the initial frame. If you want the initial frame
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to have the proper geometry as soon as it appears, you need to
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use this three-step process:
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* Specify X resources to give the geometry you want.
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* Set `default-frame-alist' to override these options so that they
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don't affect subsequent frames.
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* Set `initial-frame-alist' in a way that matches the X resources,
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to override what you put in `default-frame-alist'."
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:type '(repeat (cons :format "%v"
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(symbol :tag "Parameter")
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(sexp :tag "Value")))
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:group 'frames)
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(defcustom minibuffer-frame-alist '((width . 80) (height . 2))
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"Alist of parameters for the initial minibuffer frame.
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This is the minibuffer frame created if `initial-frame-alist'
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calls for a frame without a minibuffer. The parameters specified
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here supersede those given in `default-frame-alist', for the
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initial minibuffer frame.
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You can set this in your init file; for example,
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(setq minibuffer-frame-alist
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'((top . 1) (left . 1) (width . 80) (height . 2)))
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It is not necessary to include (minibuffer . only); that is
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appended when the minibuffer frame is created."
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:type '(repeat (cons :format "%v"
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(symbol :tag "Parameter")
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(sexp :tag "Value")))
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:group 'frames)
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(defcustom pop-up-frame-alist nil
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"Alist of parameters for automatically generated new frames.
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You can set this in your init file; for example,
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(setq pop-up-frame-alist '((width . 80) (height . 20)))
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If non-nil, the value you specify here is used by the default
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`pop-up-frame-function' for the creation of new frames.
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Since `pop-up-frame-function' is used by `display-buffer' for
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making new frames, any value specified here by default affects
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the automatic generation of new frames via `display-buffer' and
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all functions based on it. The behavior of `make-frame' is not
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affected by this variable."
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:type '(repeat (cons :format "%v"
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(symbol :tag "Parameter")
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(sexp :tag "Value")))
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:group 'frames)
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(defcustom pop-up-frame-function
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(lambda () (make-frame pop-up-frame-alist))
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"Function used by `display-buffer' for creating a new frame.
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This function is called with no arguments and should return a new
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frame. The default value calls `make-frame' with the argument
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`pop-up-frame-alist'."
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:type 'function
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:group 'frames)
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(defcustom special-display-frame-alist
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'((height . 14) (width . 80) (unsplittable . t))
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"Alist of parameters for special frames.
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Special frames are used for buffers whose names are listed in
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`special-display-buffer-names' and for buffers whose names match
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one of the regular expressions in `special-display-regexps'.
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This variable can be set in your init file, like this:
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(setq special-display-frame-alist '((width . 80) (height . 20)))
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These supersede the values given in `default-frame-alist'."
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:type '(repeat (cons :format "%v"
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(symbol :tag "Parameter")
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(sexp :tag "Value")))
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:group 'frames)
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(defun special-display-popup-frame (buffer &optional args)
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"Display BUFFER and return the window chosen.
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If BUFFER is already displayed in a visible or iconified frame,
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raise that frame. Otherwise, display BUFFER in a new frame.
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Optional argument ARGS is a list specifying additional
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information.
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If ARGS is an alist, use it as a list of frame parameters. If
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these parameters contain \(same-window . t), display BUFFER in
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the selected window. If they contain \(same-frame . t), display
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BUFFER in a window of the selected frame.
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If ARGS is a list whose car is a symbol, use (car ARGS) as a
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function to do the work. Pass it BUFFER as first argument,
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and (cdr ARGS) as second."
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(if (and args (symbolp (car args)))
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(apply (car args) buffer (cdr args))
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(let ((window (get-buffer-window buffer 0)))
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(or
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;; If we have a window already, make it visible.
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(when window
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(let ((frame (window-frame window)))
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(make-frame-visible frame)
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(raise-frame frame)
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window))
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;; Reuse the current window if the user requested it.
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(when (cdr (assq 'same-window args))
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(condition-case nil
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(progn (switch-to-buffer buffer) (selected-window))
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(error nil)))
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;; Stay on the same frame if requested.
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(when (or (cdr (assq 'same-frame args)) (cdr (assq 'same-window args)))
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(let* ((pop-up-windows t)
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pop-up-frames
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special-display-buffer-names special-display-regexps)
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(display-buffer buffer)))
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;; If no window yet, make one in a new frame.
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(let ((frame
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(with-current-buffer buffer
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(make-frame (append args special-display-frame-alist)))))
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(set-window-buffer (frame-selected-window frame) buffer)
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(set-window-dedicated-p (frame-selected-window frame) t)
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(frame-selected-window frame))))))
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(defun handle-delete-frame (event)
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"Handle delete-frame events from the X server."
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(interactive "e")
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(let ((frame (posn-window (event-start event)))
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(i 0)
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(tail (frame-list)))
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(while tail
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(and (frame-visible-p (car tail))
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(not (eq (car tail) frame))
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(setq i (1+ i)))
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(setq tail (cdr tail)))
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(if (> i 0)
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(delete-frame frame t)
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;; Gildea@x.org says it is ok to ask questions before terminating.
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(save-buffers-kill-emacs))))
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;;;; Arrangement of frames at startup
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;; 1) Load the window system startup file from the lisp library and read the
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;; high-priority arguments (-q and the like). The window system startup
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;; file should create any frames specified in the window system defaults.
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;;
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;; 2) If no frames have been opened, we open an initial text frame.
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;;
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;; 3) Once the init file is done, we apply any newly set parameters
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;; in initial-frame-alist to the frame.
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;; These are now called explicitly at the proper times,
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;; since that is easier to understand.
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;; Actually using hooks within Emacs is bad for future maintenance. --rms.
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;; (add-hook 'before-init-hook 'frame-initialize)
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;; (add-hook 'window-setup-hook 'frame-notice-user-settings)
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;; If we create the initial frame, this is it.
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(defvar frame-initial-frame nil)
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;; Record the parameters used in frame-initialize to make the initial frame.
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(defvar frame-initial-frame-alist)
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(defvar frame-initial-geometry-arguments nil)
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;; startup.el calls this function before loading the user's init
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;; file - if there is no frame with a minibuffer open now, create
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;; one to display messages while loading the init file.
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(defun frame-initialize ()
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"Create an initial frame if necessary."
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;; Are we actually running under a window system at all?
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(if (and initial-window-system
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(not noninteractive)
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(not (eq initial-window-system 'pc)))
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(progn
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;; If there is no frame with a minibuffer besides the terminal
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;; frame, then we need to create the opening frame. Make sure
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;; it has a minibuffer, but let initial-frame-alist omit the
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;; minibuffer spec.
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(or (delq terminal-frame (minibuffer-frame-list))
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(progn
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(setq frame-initial-frame-alist
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(append initial-frame-alist default-frame-alist nil))
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(or (assq 'horizontal-scroll-bars frame-initial-frame-alist)
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(setq frame-initial-frame-alist
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(cons '(horizontal-scroll-bars . t)
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frame-initial-frame-alist)))
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(setq frame-initial-frame-alist
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(cons (cons 'window-system initial-window-system)
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frame-initial-frame-alist))
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(setq default-minibuffer-frame
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(setq frame-initial-frame
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(make-frame frame-initial-frame-alist)))
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;; Delete any specifications for window geometry parameters
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;; so that we won't reapply them in frame-notice-user-settings.
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;; It would be wrong to reapply them then,
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;; because that would override explicit user resizing.
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(setq initial-frame-alist
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(frame-remove-geometry-params initial-frame-alist))))
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;; Copy the environment of the Emacs process into the new frame.
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(set-frame-parameter frame-initial-frame 'environment
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(frame-parameter terminal-frame 'environment))
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;; At this point, we know that we have a frame open, so we
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;; can delete the terminal frame.
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(delete-frame terminal-frame)
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(setq terminal-frame nil))))
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(defvar frame-notice-user-settings t
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"Non-nil means function `frame-notice-user-settings' wasn't run yet.")
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(declare-function tool-bar-mode "tool-bar" (&optional arg))
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;; startup.el calls this function after loading the user's init
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;; file. Now default-frame-alist and initial-frame-alist contain
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;; information to which we must react; do what needs to be done.
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(defun frame-notice-user-settings ()
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"Act on user's init file settings of frame parameters.
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React to settings of `initial-frame-alist',
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`window-system-default-frame-alist' and `default-frame-alist'
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there (in decreasing order of priority)."
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;; Make menu-bar-mode and default-frame-alist consistent.
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(when (boundp 'menu-bar-mode)
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(let ((default (assq 'menu-bar-lines default-frame-alist)))
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(if default
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(setq menu-bar-mode (not (eq (cdr default) 0)))
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(setq default-frame-alist
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(cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
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default-frame-alist)))))
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;; Make tool-bar-mode and default-frame-alist consistent. Don't do
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;; it in batch mode since that would leave a tool-bar-lines
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;; parameter in default-frame-alist in a dumped Emacs, which is not
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;; what we want.
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(when (and (boundp 'tool-bar-mode)
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(not noninteractive))
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(let ((default (assq 'tool-bar-lines default-frame-alist)))
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(if default
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(setq tool-bar-mode (not (eq (cdr default) 0)))
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;; If Emacs was started on a tty, changing default-frame-alist
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;; would disable the toolbar on X frames created later. We
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;; want to keep the default of showing a toolbar under X even
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;; in this case.
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;;
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;; If the user explicitly called `tool-bar-mode' in .emacs,
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;; then default-frame-alist is already changed anyway.
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(when initial-window-system
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(setq default-frame-alist
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(cons (cons 'tool-bar-lines (if tool-bar-mode 1 0))
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default-frame-alist))))))
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;; Creating and deleting frames may shift the selected frame around,
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;; and thus the current buffer. Protect against that. We don't
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;; want to use save-excursion here, because that may also try to set
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;; the buffer of the selected window, which fails when the selected
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;; window is the minibuffer.
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(let ((old-buffer (current-buffer))
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(window-system-frame-alist
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(cdr (assq initial-window-system
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window-system-default-frame-alist))))
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(when (and frame-notice-user-settings
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(null frame-initial-frame))
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;; This case happens when we don't have a window system, and
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;; also for MS-DOS frames.
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(let ((parms (frame-parameters frame-initial-frame)))
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;; Don't change the frame names.
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(setq parms (delq (assq 'name parms) parms))
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;; Can't modify the minibuffer parameter, so don't try.
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(setq parms (delq (assq 'minibuffer parms) parms))
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(modify-frame-parameters nil
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(if (null initial-window-system)
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(append initial-frame-alist
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window-system-frame-alist
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default-frame-alist
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parms
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nil)
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;; initial-frame-alist and
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;; default-frame-alist were already
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;; applied in pc-win.el.
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parms))
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(if (null initial-window-system) ;; MS-DOS does this differently in pc-win.el
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(let ((newparms (frame-parameters))
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(frame (selected-frame)))
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(tty-handle-reverse-video frame newparms)
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;; If we changed the background color, we need to update
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;; the background-mode parameter, and maybe some faces,
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;; too.
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(when (assq 'background-color newparms)
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(unless (or (assq 'background-mode initial-frame-alist)
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(assq 'background-mode default-frame-alist))
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(frame-set-background-mode frame))
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(face-set-after-frame-default frame))))))
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;; If the initial frame is still around, apply initial-frame-alist
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;; and default-frame-alist to it.
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(when (frame-live-p frame-initial-frame)
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;; When tool-bar has been switched off, correct the frame size
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;; by the lines added in x-create-frame for the tool-bar and
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;; switch `tool-bar-mode' off.
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(when (display-graphic-p)
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(let ((tool-bar-lines (or (assq 'tool-bar-lines initial-frame-alist)
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(assq 'tool-bar-lines window-system-frame-alist)
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(assq 'tool-bar-lines default-frame-alist))))
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(when (and tool-bar-originally-present
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(or (null tool-bar-lines)
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(null (cdr tool-bar-lines))
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(eq 0 (cdr tool-bar-lines))))
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(let* ((char-height (frame-char-height frame-initial-frame))
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(image-height tool-bar-images-pixel-height)
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(margin (cond ((and (consp tool-bar-button-margin)
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(integerp (cdr tool-bar-button-margin))
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(> tool-bar-button-margin 0))
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(cdr tool-bar-button-margin))
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((and (integerp tool-bar-button-margin)
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(> tool-bar-button-margin 0))
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tool-bar-button-margin)
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(t 0)))
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(relief (if (and (integerp tool-bar-button-relief)
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(> tool-bar-button-relief 0))
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tool-bar-button-relief 3))
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(lines (/ (+ image-height
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(* 2 margin)
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(* 2 relief)
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(1- char-height))
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char-height))
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(height (frame-parameter frame-initial-frame 'height))
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(newparms (list (cons 'height (- height lines))))
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(initial-top (cdr (assq 'top
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frame-initial-geometry-arguments)))
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(top (frame-parameter frame-initial-frame 'top)))
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(when (and (consp initial-top) (eq '- (car initial-top)))
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(let ((adjusted-top
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(cond ((and (consp top)
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(eq '+ (car top)))
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(list '+
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(+ (cadr top)
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(* lines char-height))))
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((and (consp top)
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(eq '- (car top)))
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(list '-
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(- (cadr top)
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(* lines char-height))))
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(t (+ top (* lines char-height))))))
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(setq newparms
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(append newparms
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`((top . ,adjusted-top))
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nil))))
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(modify-frame-parameters frame-initial-frame newparms)
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(tool-bar-mode -1)))))
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;; The initial frame we create above always has a minibuffer.
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;; If the user wants to remove it, or make it a minibuffer-only
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;; frame, then we'll have to delete the current frame and make a
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;; new one; you can't remove or add a root window to/from an
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;; existing frame.
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;;
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;; NOTE: default-frame-alist was nil when we created the
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;; existing frame. We need to explicitly include
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;; default-frame-alist in the parameters of the screen we
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;; create here, so that its new value, gleaned from the user's
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;; .emacs file, will be applied to the existing screen.
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(if (not (eq (cdr (or (assq 'minibuffer initial-frame-alist)
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(assq 'minibuffer window-system-frame-alist)
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(assq 'minibuffer default-frame-alist)
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'(minibuffer . t)))
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t))
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;; Create the new frame.
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(let (parms new)
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;; If the frame isn't visible yet, wait till it is.
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;; If the user has to position the window,
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;; Emacs doesn't know its real position until
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;; the frame is seen to be visible.
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(while (not (cdr (assq 'visibility
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(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)))
|
||
;; An explicit parent-id is a request to XEmbed the frame.
|
||
(or (assq 'parent-id frame-initial-frame-alist)
|
||
(setq parms (delq (assq 'parent-id parms) parms)))
|
||
|
||
(setq parms (append initial-frame-alist
|
||
window-system-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
|
||
(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 (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.
|
||
(dolist (frame users-of-initial)
|
||
(modify-frame-parameters
|
||
frame (list (cons 'minibuffer new-minibuffer)))))))
|
||
|
||
;; 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
|
||
window-system-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)))
|
||
|
||
(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
|
||
|
||
(defun modify-all-frames-parameters (alist)
|
||
"Modify all current and future frames' parameters according to ALIST.
|
||
This changes `default-frame-alist' and possibly `initial-frame-alist'.
|
||
Furthermore, this function removes all parameters in ALIST from
|
||
`window-system-default-frame-alist'.
|
||
See help of `modify-frame-parameters' for more information."
|
||
(dolist (frame (frame-list))
|
||
(modify-frame-parameters frame alist))
|
||
|
||
(dolist (pair alist) ;; conses to add/replace
|
||
;; initial-frame-alist needs setting only when
|
||
;; frame-notice-user-settings is true.
|
||
(and frame-notice-user-settings
|
||
(setq initial-frame-alist
|
||
(assq-delete-all (car pair) initial-frame-alist)))
|
||
(setq default-frame-alist
|
||
(assq-delete-all (car pair) default-frame-alist))
|
||
;; Remove any similar settings from the window-system specific
|
||
;; parameters---they would override default-frame-alist.
|
||
(dolist (w window-system-default-frame-alist)
|
||
(setcdr w (assq-delete-all (car pair) (cdr w)))))
|
||
|
||
(and frame-notice-user-settings
|
||
(setq initial-frame-alist (append initial-frame-alist alist)))
|
||
(setq default-frame-alist (append default-frame-alist alist)))
|
||
|
||
(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)))))
|
||
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)
|
||
0))
|
||
(select-frame-set-input-focus (selected-frame)))
|
||
|
||
(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)
|
||
0))
|
||
(select-frame-set-input-focus (selected-frame)))
|
||
|
||
(declare-function x-initialize-window-system "term/x-win" ())
|
||
(declare-function ns-initialize-window-system "term/ns-win" ())
|
||
(defvar x-display-name) ; term/x-win
|
||
|
||
(defun make-frame-on-display (display &optional parameters)
|
||
"Make a frame on display DISPLAY.
|
||
The optional argument PARAMETERS specifies additional frame parameters."
|
||
(interactive "sMake frame on display: ")
|
||
(cond ((featurep 'ns)
|
||
(when (and (boundp 'ns-initialized) (not ns-initialized))
|
||
(setq x-display-name display)
|
||
(ns-initialize-window-system))
|
||
(make-frame `((window-system . ns)
|
||
(display . ,display) . ,parameters)))
|
||
((eq system-type 'windows-nt)
|
||
;; On Windows, ignore DISPLAY.
|
||
(make-frame parameters))
|
||
(t
|
||
(unless (string-match-p "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display)
|
||
(error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN"))
|
||
(when (and (boundp 'x-initialized) (not x-initialized))
|
||
(setq x-display-name display)
|
||
(x-initialize-window-system))
|
||
(make-frame `((window-system . x)
|
||
(display . ,display) . ,parameters)))))
|
||
|
||
(declare-function x-close-connection "xfns.c" (terminal))
|
||
|
||
(defun close-display-connection (display)
|
||
"Close the connection to a display, deleting all its associated frames.
|
||
For DISPLAY, specify either a frame or a display name (a string).
|
||
If DISPLAY is nil, that stands for the selected frame's display."
|
||
(interactive
|
||
(list
|
||
(let* ((default (frame-parameter nil 'display))
|
||
(display (completing-read
|
||
(format "Close display (default %s): " default)
|
||
(delete-dups
|
||
(mapcar (lambda (frame)
|
||
(frame-parameter frame 'display))
|
||
(frame-list)))
|
||
nil t nil nil
|
||
default)))
|
||
(if (zerop (length display)) default display))))
|
||
(let ((frames (delq nil
|
||
(mapcar (lambda (frame)
|
||
(if (equal display
|
||
(frame-parameter frame 'display))
|
||
frame))
|
||
(frame-list)))))
|
||
(if (and (consp frames)
|
||
(not (y-or-n-p (if (cdr frames)
|
||
(format "Delete %s frames? " (length frames))
|
||
(format "Delete %s ? " (car frames))))))
|
||
(error "Abort!")
|
||
(mapc 'delete-frame frames)
|
||
(x-close-connection display))))
|
||
|
||
(defun make-frame-command ()
|
||
"Make a new frame, on the same terminal as the selected frame.
|
||
If the terminal is a text-only terminal, this also selects the
|
||
new frame."
|
||
(interactive)
|
||
(if (display-graphic-p)
|
||
(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.
|
||
(define-obsolete-function-alias 'new-frame 'make-frame "22.1")
|
||
|
||
(defvar frame-inherited-parameters '()
|
||
;; FIXME: Shouldn't we add `font' here as well?
|
||
"Parameters `make-frame' copies from the `selected-frame' to the new 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.
|
||
|
||
(window-system . nil) The frame should be displayed on a terminal device.
|
||
(window-system . x) The frame should be displayed in an X window.
|
||
|
||
(terminal . TERMINAL) The frame should use the terminal object TERMINAL.
|
||
|
||
Before the frame is created (via `frame-creation-function-alist'), 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.
|
||
|
||
This function itself does not make the new frame the selected frame.
|
||
The previously selected frame remains selected. However, the
|
||
window system may select the new frame for its own reasons, for
|
||
instance if the frame appears under the mouse pointer and your
|
||
setup is for focus to follow the pointer."
|
||
(interactive)
|
||
(let* ((w (cond
|
||
((assq 'terminal parameters)
|
||
(let ((type (terminal-live-p (cdr (assq 'terminal parameters)))))
|
||
(cond
|
||
((eq type t) nil)
|
||
((eq type nil) (error "Terminal %s does not exist"
|
||
(cdr (assq 'terminal parameters))))
|
||
(t type))))
|
||
((assq 'window-system parameters)
|
||
(cdr (assq 'window-system parameters)))
|
||
(t window-system)))
|
||
(frame-creation-function (cdr (assq w frame-creation-function-alist)))
|
||
(oldframe (selected-frame))
|
||
frame)
|
||
(unless frame-creation-function
|
||
(error "Don't know how to create a frame on window system %s" w))
|
||
(run-hooks 'before-make-frame-hook)
|
||
(setq frame
|
||
(funcall frame-creation-function
|
||
(append parameters
|
||
(cdr (assq w window-system-default-frame-alist)))))
|
||
(normal-erase-is-backspace-setup-frame frame)
|
||
;; Inherit the original frame's parameters.
|
||
(dolist (param frame-inherited-parameters)
|
||
(unless (assq param parameters) ;Overridden by explicit parameters.
|
||
(let ((val (frame-parameter oldframe param)))
|
||
(when val (set-frame-parameter frame param val)))))
|
||
(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))
|
||
(list frames))
|
||
(while (consp frames)
|
||
(unless (funcall predicate (car frames))
|
||
(setcar frames nil))
|
||
(setq frames (cdr frames)))
|
||
(delq nil list)))
|
||
|
||
(defun minibuffer-frame-list ()
|
||
"Return a list of all frames with their own minibuffers."
|
||
(filtered-frame-list
|
||
(lambda (frame)
|
||
(eq frame (window-frame (minibuffer-window frame))))))
|
||
|
||
;; Used to be called `terminal-id' in termdev.el.
|
||
(defun get-device-terminal (device)
|
||
"Return the terminal corresponding to DEVICE.
|
||
DEVICE can be a terminal, a frame, nil (meaning the selected frame's terminal),
|
||
the name of an X display device (HOST.SERVER.SCREEN) or a tty device file."
|
||
(cond
|
||
((or (null device) (framep device))
|
||
(frame-terminal device))
|
||
((stringp device)
|
||
(let ((f (car (filtered-frame-list
|
||
(lambda (frame)
|
||
(or (equal (frame-parameter frame 'display) device)
|
||
(equal (frame-parameter frame 'tty) device)))))))
|
||
(or f (error "Display %s does not exist" device))
|
||
(frame-terminal f)))
|
||
((terminal-live-p device) device)
|
||
(t
|
||
(error "Invalid argument %s in `get-device-terminal'" device))))
|
||
|
||
(defun frames-on-display-list (&optional device)
|
||
"Return a list of all frames on DEVICE.
|
||
|
||
DEVICE should be a terminal, a frame,
|
||
or a name of an X display or tty (a string of the form
|
||
HOST:SERVER.SCREEN).
|
||
|
||
If DEVICE is omitted or nil, it defaults to the selected
|
||
frame's terminal device."
|
||
(let* ((terminal (get-device-terminal device))
|
||
(func #'(lambda (frame)
|
||
(eq (frame-terminal frame) terminal))))
|
||
(filtered-frame-list func)))
|
||
|
||
(defun framep-on-display (&optional terminal)
|
||
"Return the type of frames on TERMINAL.
|
||
TERMINAL may be a terminal id, a display name or a frame. If it
|
||
is a frame, its type is returned. If TERMINAL is omitted or nil,
|
||
it defaults to the selected frame's terminal device. All frames
|
||
on a given display are of the same type."
|
||
(or (terminal-live-p terminal)
|
||
(framep terminal)
|
||
(framep (car (frames-on-display-list terminal)))))
|
||
|
||
(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))
|
||
|
||
(declare-function x-focus-frame "xfns.c" (frame))
|
||
|
||
(defun select-frame-set-input-focus (frame)
|
||
"Select FRAME, raise it, and set input focus, if possible.
|
||
If `mouse-autoselect-window' is non-nil, also move mouse pointer
|
||
to FRAME's selected window. Otherwise, if `focus-follows-mouse'
|
||
is non-nil, move mouse cursor to FRAME."
|
||
(select-frame frame)
|
||
(raise-frame frame)
|
||
;; Ensure, if possible, that FRAME gets input focus.
|
||
(when (memq (window-system frame) '(x w32 ns))
|
||
(x-focus-frame frame))
|
||
;; Move mouse cursor if necessary.
|
||
(cond
|
||
(mouse-autoselect-window
|
||
(let ((edges (window-inside-edges (frame-selected-window frame))))
|
||
;; Move mouse cursor into FRAME's selected window to avoid that
|
||
;; Emacs mouse-autoselects another window.
|
||
(set-mouse-position frame (nth 2 edges) (nth 1 edges))))
|
||
(focus-follows-mouse
|
||
;; Move mouse cursor into FRAME to avoid that another frame gets
|
||
;; selected by the window manager.
|
||
(set-mouse-position frame (1- (frame-width frame)) 0))))
|
||
|
||
(defun other-frame (arg)
|
||
"Select the ARGth different visible frame on current display, 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.
|
||
|
||
To make this command work properly, you must tell Emacs
|
||
how the system (or the window manager) generally handles
|
||
focus-switching between windows. If moving the mouse onto a window
|
||
selects it (gives it focus), set `focus-follows-mouse' to t.
|
||
Otherwise, that variable should be nil."
|
||
(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)))
|
||
(select-frame-set-input-focus frame)))
|
||
|
||
(defun iconify-or-deiconify-frame ()
|
||
"Iconify the selected frame, or deiconify if it's currently an icon."
|
||
(interactive)
|
||
(if (eq (cdr (assq 'visibility (frame-parameters))) t)
|
||
(iconify-frame)
|
||
(make-frame-visible)))
|
||
|
||
(defun suspend-frame ()
|
||
"Do whatever is right to suspend the current frame.
|
||
Calls `suspend-emacs' if invoked from the controlling tty device,
|
||
`suspend-tty' from a secondary tty device, and
|
||
`iconify-or-deiconify-frame' from an X frame."
|
||
(interactive)
|
||
(let ((type (framep (selected-frame))))
|
||
(cond
|
||
((memq type '(x ns w32)) (iconify-or-deiconify-frame))
|
||
((eq type t)
|
||
(if (controlling-tty-p)
|
||
(suspend-emacs)
|
||
(suspend-tty)))
|
||
(t (suspend-emacs)))))
|
||
|
||
(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 on the current terminal 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))))
|
||
(if frame
|
||
(select-frame-set-input-focus frame)
|
||
(error "There is no frame named `%s'" name))))
|
||
|
||
;;;; 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 (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.
|
||
However, this function does not restore deleted frames.
|
||
|
||
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)
|
||
(dolist (frame (frame-list))
|
||
(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))
|
||
(name (assq 'name parms))
|
||
(explicit-name (cdr (assq 'explicit-name parms))))
|
||
(when mini (setq parms (delq mini parms)))
|
||
;; Leave name in iff it was set explicitly.
|
||
;; This should fix the behavior reported in
|
||
;; http://lists.gnu.org/archive/html/emacs-devel/2007-08/msg01632.html
|
||
(when (and name (not explicit-name))
|
||
(setq parms (delq name parms)))
|
||
parms))
|
||
(set-window-configuration (nth 2 parameters)))
|
||
(setq frames-to-delete (cons frame frames-to-delete)))))
|
||
(mapc (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.
|
||
'iconify-frame
|
||
'delete-frame)
|
||
frames-to-delete)))
|
||
|
||
;;;; Convenience functions for accessing and interactively changing
|
||
;;;; frame parameters.
|
||
|
||
(defun frame-height (&optional frame)
|
||
"Return number of lines available for display on FRAME.
|
||
If FRAME is omitted, describe the currently selected frame.
|
||
Exactly what is included in the return value depends on the
|
||
window-system and toolkit in use - see `frame-pixel-height' for
|
||
more details. The lines are in units of the default font height.
|
||
|
||
The result is roughly related to the frame pixel height via
|
||
height in pixels = height in lines * `frame-char-height'.
|
||
However, this is only approximate, and is complicated e.g. by the
|
||
fact that individual window lines and menu bar lines can have
|
||
differing font heights."
|
||
(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))))
|
||
|
||
(declare-function x-list-fonts "xfaces.c"
|
||
(pattern &optional face frame maximum width))
|
||
|
||
(define-obsolete-function-alias 'set-default-font 'set-frame-font "23.1")
|
||
(defun set-frame-font (font-name &optional keep-size)
|
||
"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'.
|
||
|
||
The default behavior is to keep the numbers of lines and columns in
|
||
the frame, thus may change its pixel size. If optional KEEP-SIZE is
|
||
non-nil (interactively, prefix argument) the current frame size (in
|
||
pixels) is kept by adjusting the numbers of the lines and columns."
|
||
(interactive
|
||
(let* ((completion-ignore-case t)
|
||
(font (completing-read "Font name: "
|
||
;; x-list-fonts will fail with an error
|
||
;; if this frame doesn't support fonts.
|
||
(x-list-fonts "*" nil (selected-frame))
|
||
nil nil nil nil
|
||
(frame-parameter nil 'font))))
|
||
(list font current-prefix-arg)))
|
||
(let (fht fwd)
|
||
(if keep-size
|
||
(setq fht (* (frame-parameter nil 'height) (frame-char-height))
|
||
fwd (* (frame-parameter nil 'width) (frame-char-width))))
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'font font-name)))
|
||
(if keep-size
|
||
(modify-frame-parameters
|
||
(selected-frame)
|
||
(list (cons 'height (round fht (frame-char-height)))
|
||
(cons 'width (round fwd (frame-char-width)))))))
|
||
(run-hooks 'after-setting-font-hook 'after-setting-font-hooks))
|
||
|
||
(defun set-frame-parameter (frame parameter value)
|
||
"Set frame parameter PARAMETER to VALUE on FRAME.
|
||
If FRAME is nil, it defaults to the selected frame.
|
||
See `modify-frame-parameters'."
|
||
(modify-frame-parameters frame (list (cons parameter value))))
|
||
|
||
(defun set-background-color (color-name)
|
||
"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 "Background color: ")))
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'background-color color-name)))
|
||
(or window-system
|
||
(face-set-after-frame-default (selected-frame))))
|
||
|
||
(defun set-foreground-color (color-name)
|
||
"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 "Foreground color: ")))
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'foreground-color color-name)))
|
||
(or window-system
|
||
(face-set-after-frame-default (selected-frame))))
|
||
|
||
(defun set-cursor-color (color-name)
|
||
"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 "Cursor 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-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 "Mouse color: ")))
|
||
(modify-frame-parameters (selected-frame)
|
||
(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-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 "Border color: ")))
|
||
(modify-frame-parameters (selected-frame)
|
||
(list (cons 'border-color color-name))))
|
||
|
||
(define-minor-mode auto-raise-mode
|
||
"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."
|
||
:variable (frame-parameter nil 'auto-raise)
|
||
(if (frame-parameter nil 'auto-raise)
|
||
(raise-frame)))
|
||
|
||
(define-minor-mode auto-lower-mode
|
||
"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."
|
||
:variable (frame-parameter nil 'auto-lower))
|
||
|
||
(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))))
|
||
|
||
(defun frame-current-scroll-bars (&optional frame)
|
||
"Return the current scroll-bar settings in frame FRAME.
|
||
Value is a cons (VERTICAL . HORIZ0NTAL) where VERTICAL specifies the
|
||
current location of the vertical scroll-bars (left, right, or nil),
|
||
and HORIZONTAL specifies the current location of the horizontal scroll
|
||
bars (top, bottom, or nil)."
|
||
(let ((vert (frame-parameter frame 'vertical-scroll-bars))
|
||
(hor nil))
|
||
(unless (memq vert '(left right nil))
|
||
(setq vert default-frame-scroll-bars))
|
||
(cons vert hor)))
|
||
|
||
;;;; Frame/display capabilities.
|
||
(defun selected-terminal ()
|
||
"Return the terminal that is now selected."
|
||
(frame-terminal (selected-frame)))
|
||
|
||
(declare-function msdos-mouse-p "dosfns.c")
|
||
|
||
(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)
|
||
(with-no-warnings
|
||
(> w32-num-mouse-buttons 0)))
|
||
((memq frame-type '(x ns))
|
||
t) ;; We assume X and NeXTstep *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 ns)))
|
||
(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 ns)))))
|
||
|
||
(defun display-images-p (&optional display)
|
||
"Return non-nil if DISPLAY can display images.
|
||
|
||
DISPLAY can be a display name, a frame, or nil (meaning the selected
|
||
frame's display)."
|
||
(and (display-graphic-p display)
|
||
(fboundp 'image-mask-p)
|
||
(fboundp 'image-size)))
|
||
|
||
(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.
|
||
(with-no-warnings
|
||
(not (null dos-windows-version))))
|
||
((memq frame-type '(x w32 ns))
|
||
t) ;; FIXME?
|
||
(t
|
||
nil))))
|
||
|
||
(declare-function x-display-screens "xfns.c" (&optional terminal))
|
||
|
||
(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 ns))
|
||
(x-display-screens display))
|
||
(t
|
||
1))))
|
||
|
||
(declare-function x-display-pixel-height "xfns.c" (&optional terminal))
|
||
|
||
(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 ns))
|
||
(x-display-pixel-height display))
|
||
(t
|
||
(frame-height (if (framep display) display (selected-frame)))))))
|
||
|
||
(declare-function x-display-pixel-width "xfns.c" (&optional terminal))
|
||
|
||
(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 ns))
|
||
(x-display-pixel-width display))
|
||
(t
|
||
(frame-width (if (framep display) display (selected-frame)))))))
|
||
|
||
(defcustom display-mm-dimensions-alist nil
|
||
"Alist for specifying screen dimensions in millimeters.
|
||
The dimensions will be used for `display-mm-height' and
|
||
`display-mm-width' if defined for the respective display.
|
||
|
||
Each element of the alist has the form (display . (width . height)),
|
||
e.g. (\":0.0\" . (287 . 215)).
|
||
|
||
If `display' equals t, it specifies dimensions for all graphical
|
||
displays not explicitely specified."
|
||
:version "22.1"
|
||
:type '(alist :key-type (choice (string :tag "Display name")
|
||
(const :tag "Default" t))
|
||
:value-type (cons :tag "Dimensions"
|
||
(integer :tag "Width")
|
||
(integer :tag "Height")))
|
||
:group 'frames)
|
||
|
||
(declare-function x-display-mm-height "xfns.c" (&optional terminal))
|
||
|
||
(defun display-mm-height (&optional display)
|
||
"Return the height of DISPLAY's screen in millimeters.
|
||
System values can be overridden by `display-mm-dimensions-alist'.
|
||
If the information is unavailable, value is nil."
|
||
(and (memq (framep-on-display display) '(x w32 ns))
|
||
(or (cddr (assoc (or display (frame-parameter nil 'display))
|
||
display-mm-dimensions-alist))
|
||
(cddr (assoc t display-mm-dimensions-alist))
|
||
(x-display-mm-height display))))
|
||
|
||
(declare-function x-display-mm-width "xfns.c" (&optional terminal))
|
||
|
||
(defun display-mm-width (&optional display)
|
||
"Return the width of DISPLAY's screen in millimeters.
|
||
System values can be overridden by `display-mm-dimensions-alist'.
|
||
If the information is unavailable, value is nil."
|
||
(and (memq (framep-on-display display) '(x w32 ns))
|
||
(or (cadr (assoc (or display (frame-parameter nil 'display))
|
||
display-mm-dimensions-alist))
|
||
(cadr (assoc t display-mm-dimensions-alist))
|
||
(x-display-mm-width display))))
|
||
|
||
(declare-function x-display-backing-store "xfns.c" (&optional terminal))
|
||
|
||
(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 ns))
|
||
(x-display-backing-store display))
|
||
(t
|
||
'not-useful))))
|
||
|
||
(declare-function x-display-save-under "xfns.c" (&optional terminal))
|
||
|
||
(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 ns))
|
||
(x-display-save-under display))
|
||
(t
|
||
'not-useful))))
|
||
|
||
(declare-function x-display-planes "xfns.c" (&optional terminal))
|
||
|
||
(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 ns))
|
||
(x-display-planes display))
|
||
((eq frame-type 'pc)
|
||
4)
|
||
(t
|
||
(truncate (log (length (tty-color-alist)) 2))))))
|
||
|
||
(declare-function x-display-color-cells "xfns.c" (&optional terminal))
|
||
|
||
(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 ns))
|
||
(x-display-color-cells display))
|
||
((eq frame-type 'pc)
|
||
16)
|
||
(t
|
||
(tty-display-color-cells display)))))
|
||
|
||
(declare-function x-display-visual-class "xfns.c" (&optional terminal))
|
||
|
||
(defun display-visual-class (&optional display)
|
||
"Return 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 ns))
|
||
(x-display-visual-class display))
|
||
((and (memq frame-type '(pc t))
|
||
(tty-display-color-p display))
|
||
'static-color)
|
||
(t
|
||
'static-gray))))
|
||
|
||
|
||
;;;; Frame geometry values
|
||
|
||
(defun frame-geom-value-cons (type value &optional frame)
|
||
"Return equivalent geometry value for FRAME as a cons with car `+'.
|
||
A geometry value equivalent to VALUE for FRAME is returned,
|
||
where the value is a cons with car `+', not numeric.
|
||
TYPE is the car of the original geometry spec (TYPE . VALUE).
|
||
It is `top' or `left', depending on which edge VALUE is related to.
|
||
VALUE is the cdr of a frame geometry spec: (left/top . VALUE).
|
||
If VALUE is a number, then it is converted to a cons value, perhaps
|
||
relative to the opposite frame edge from that in the original spec.
|
||
FRAME defaults to the selected frame.
|
||
|
||
Examples (measures in pixels) -
|
||
Assuming display height/width=1024, frame height/width=600:
|
||
300 inside display edge: 300 => (+ 300)
|
||
(+ 300) => (+ 300)
|
||
300 inside opposite display edge: (- 300) => (+ 124)
|
||
-300 => (+ 124)
|
||
300 beyond display edge
|
||
(= 724 inside opposite display edge): (+ -300) => (+ -300)
|
||
300 beyond display edge
|
||
(= 724 inside opposite display edge): (- -300) => (+ 724)
|
||
|
||
In the 3rd, 4th, and 6th examples, the returned value is relative to
|
||
the opposite frame edge from the edge indicated in the input spec."
|
||
(cond ((and (consp value) (eq '+ (car value))) ; e.g. (+ 300), (+ -300)
|
||
value)
|
||
((natnump value) (list '+ value)) ; e.g. 300 => (+ 300)
|
||
(t ; e.g. -300, (- 300), (- -300)
|
||
(list '+ (- (if (eq 'left type) ; => (+ 124), (+ 124), (+ 724)
|
||
(x-display-pixel-width)
|
||
(x-display-pixel-height))
|
||
(if (integerp value) (- value) (cadr value))
|
||
(if (eq 'left type)
|
||
(frame-pixel-width frame)
|
||
(frame-pixel-height frame)))))))
|
||
|
||
(defun frame-geom-spec-cons (spec &optional frame)
|
||
"Return equivalent geometry spec for FRAME as a cons with car `+'.
|
||
A geometry specification equivalent to SPEC for FRAME is returned,
|
||
where the value is a cons with car `+', not numeric.
|
||
SPEC is a frame geometry spec: (left . VALUE) or (top . VALUE).
|
||
If VALUE is a number, then it is converted to a cons value, perhaps
|
||
relative to the opposite frame edge from that in the original spec.
|
||
FRAME defaults to the selected frame.
|
||
|
||
Examples (measures in pixels) -
|
||
Assuming display height=1024, frame height=600:
|
||
top 300 below display top: (top . 300) => (top + 300)
|
||
(top + 300) => (top + 300)
|
||
bottom 300 above display bottom: (top - 300) => (top + 124)
|
||
(top . -300) => (top + 124)
|
||
top 300 above display top
|
||
(= bottom 724 above display bottom): (top + -300) => (top + -300)
|
||
bottom 300 below display bottom
|
||
(= top 724 below display top): (top - -300) => (top + 724)
|
||
|
||
In the 3rd, 4th, and 6th examples, the returned value is relative to
|
||
the opposite frame edge from the edge indicated in the input spec."
|
||
(cons (car spec) (frame-geom-value-cons (car spec) (cdr spec))))
|
||
|
||
;;;; Aliases for backward compatibility with Emacs 18.
|
||
(define-obsolete-function-alias 'screen-height 'frame-height "19.7")
|
||
(define-obsolete-function-alias 'screen-width 'frame-width "19.7")
|
||
|
||
(defun set-screen-width (cols &optional pretend)
|
||
"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."
|
||
(set-frame-width (selected-frame) cols pretend))
|
||
|
||
(defun set-screen-height (lines &optional pretend)
|
||
"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."
|
||
(set-frame-height (selected-frame) lines pretend))
|
||
|
||
(defun delete-other-frames (&optional frame)
|
||
"Delete all frames except FRAME.
|
||
If FRAME uses another frame's minibuffer, the minibuffer frame is
|
||
left untouched. FRAME nil or omitted means use the selected frame."
|
||
(interactive)
|
||
(unless frame
|
||
(setq frame (selected-frame)))
|
||
(let* ((mini-frame (window-frame (minibuffer-window frame)))
|
||
(frames (delq mini-frame (delq frame (frame-list)))))
|
||
;; Only consider frames on the same terminal.
|
||
(dolist (frame (prog1 frames (setq frames nil)))
|
||
(if (eq (frame-terminal) (frame-terminal frame))
|
||
(push frame frames)))
|
||
;; Delete mon-minibuffer-only frames first, because `delete-frame'
|
||
;; signals an error when trying to delete a mini-frame that's
|
||
;; still in use by another frame.
|
||
(dolist (frame frames)
|
||
(unless (eq (frame-parameter frame 'minibuffer) 'only)
|
||
(delete-frame frame)))
|
||
;; Delete minibuffer-only frames.
|
||
(dolist (frame frames)
|
||
(when (eq (frame-parameter frame 'minibuffer) 'only)
|
||
(delete-frame frame)))))
|
||
|
||
(make-obsolete 'set-screen-width 'set-frame-width "19.7")
|
||
(make-obsolete 'set-screen-height 'set-frame-height "19.7")
|
||
|
||
;; miscellaneous obsolescence declarations
|
||
(define-obsolete-variable-alias 'delete-frame-hook
|
||
'delete-frame-functions "22.1")
|
||
|
||
|
||
;; Highlighting trailing whitespace.
|
||
|
||
(make-variable-buffer-local 'show-trailing-whitespace)
|
||
|
||
(defcustom show-trailing-whitespace nil
|
||
"Non-nil means highlight trailing whitespace.
|
||
This is done in the face `trailing-whitespace'."
|
||
:type 'boolean
|
||
:safe 'booleanp
|
||
:group 'whitespace-faces)
|
||
|
||
|
||
|
||
;; Scrolling
|
||
|
||
(defgroup scrolling nil
|
||
"Scrolling windows."
|
||
:version "21.1"
|
||
:group 'frames)
|
||
|
||
(defcustom auto-hscroll-mode t
|
||
"Allow or disallow automatic scrolling windows horizontally.
|
||
If non-nil, windows are automatically scrolled horizontally to make
|
||
point visible."
|
||
:version "21.1"
|
||
:type 'boolean
|
||
:group 'scrolling)
|
||
(defvaralias 'automatic-hscrolling 'auto-hscroll-mode)
|
||
|
||
|
||
;; 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."
|
||
:type 'number
|
||
:group 'cursor)
|
||
|
||
(defcustom blink-cursor-interval 0.5
|
||
"Length of cursor 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-timer-function' every
|
||
`blink-cursor-interval' seconds.")
|
||
|
||
(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)
|
||
;; Set up the timer first, so that if this signals an error,
|
||
;; blink-cursor-end is not added to pre-command-hook.
|
||
(setq blink-cursor-timer
|
||
(run-with-timer blink-cursor-interval blink-cursor-interval
|
||
'blink-cursor-timer-function))
|
||
(add-hook 'pre-command-hook 'blink-cursor-end)
|
||
(internal-show-cursor nil nil)))
|
||
|
||
(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)
|
||
(when blink-cursor-timer
|
||
(cancel-timer blink-cursor-timer)
|
||
(setq blink-cursor-timer nil)))
|
||
|
||
(define-minor-mode blink-cursor-mode
|
||
"Toggle blinking cursor mode.
|
||
With a numeric argument, turn blinking cursor mode on if ARG is positive,
|
||
otherwise turn it off. When blinking cursor mode is enabled, the
|
||
cursor of the selected window blinks.
|
||
|
||
Note that this command is effective only when Emacs
|
||
displays through a window system, because then Emacs does its own
|
||
cursor display. On a text-only terminal, this is not implemented."
|
||
:init-value (not (or noninteractive
|
||
no-blinking-cursor
|
||
(eq system-type 'ms-dos)
|
||
(not (memq window-system '(x w32)))))
|
||
:initialize 'custom-initialize-delay
|
||
:group 'cursor
|
||
:global t
|
||
(if blink-cursor-idle-timer (cancel-timer blink-cursor-idle-timer))
|
||
(setq blink-cursor-idle-timer nil)
|
||
(blink-cursor-end)
|
||
(when blink-cursor-mode
|
||
;; 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))))
|
||
|
||
(define-obsolete-variable-alias 'blink-cursor 'blink-cursor-mode "22.1")
|
||
|
||
;; Hourglass pointer
|
||
|
||
(defcustom display-hourglass t
|
||
"Non-nil means show an hourglass pointer, when Emacs is busy.
|
||
This feature only works when on a window system that can change
|
||
cursor shapes."
|
||
:type 'boolean
|
||
:group 'cursor)
|
||
|
||
(defcustom hourglass-delay 1
|
||
"Seconds to wait before displaying an hourglass pointer when Emacs is busy."
|
||
:type 'number
|
||
:group 'cursor)
|
||
|
||
|
||
(defcustom 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.
|
||
If t, display a cursor related to the usual cursor type
|
||
\(a solid box becomes hollow, a bar becomes a narrower bar).
|
||
You can also specify the cursor type as in the `cursor-type' variable.
|
||
Use Custom to set this variable to get the display updated."
|
||
:tag "Cursor In Non-selected Windows"
|
||
:type 'boolean
|
||
:group 'cursor
|
||
:set #'(lambda (symbol value)
|
||
(set-default symbol value)
|
||
(force-mode-line-update t)))
|
||
|
||
|
||
;;;; Key bindings
|
||
|
||
(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)
|
||
|
||
(provide 'frame)
|
||
|
||
;; arch-tag: 82979c70-b8f2-4306-b2ad-ddbd6b328b56
|
||
;;; frame.el ends here
|