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;;; 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 Free Software Foundation, Inc.
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;; 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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;; Keywords: internal
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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 `.emacs' 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 `default-frame-alist'.")
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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 frame parameters for creating the initial X window frame.
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You can set this in your `.emacs' file; for example,
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(setq initial-frame-alist '((top . 1) (left . 1) (width . 80) (height . 55)))
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Parameters specified here supersede the values given in `default-frame-alist'.
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If the value calls for a frame without a minibuffer, and you have not created
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a minibuffer frame on your own, one is created according to
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`minibuffer-frame-alist'.
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You can specify geometry-related options for just the initial frame
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by setting this variable in your `.emacs' file; however, they won't
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take effect until Emacs reads `.emacs', which happens after first creating
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the frame. If you want the frame to have the proper geometry as soon
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as it appears, you need to use this three-step process:
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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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(defcustom minibuffer-frame-alist '((width . 80) (height . 2))
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"*Alist of frame parameters for initially creating a minibuffer frame.
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You can set this in your `.emacs' file; for example,
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"Alist of parameters for 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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'((top . 1) (left . 1) (width . 80) (height . 2)))
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Parameters specified here supersede the values given in
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`default-frame-alist', for a minibuffer frame."
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:type '(repeat (cons :format "%v"
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(defcustom pop-up-frame-alist nil
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"*Alist of frame parameters used when creating pop-up frames.
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Pop-up frames are used for completions, help, and the like.
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This variable can be set in your init file, like this:
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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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These supersede the values given in `default-frame-alist',
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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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(defcustom pop-up-frame-function
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(lambda () (make-frame pop-up-frame-alist))
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"Function to call to handle automatic new frame creation.
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It is called with no arguments and should return a newly created frame."
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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 '(choice (const nil) (function :tag "function"))
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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 frame parameters used when creating special frames.
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Special frames are used for buffers whose names are in
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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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(defun special-display-popup-frame (buffer &optional args)
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"Display BUFFER in its own frame, reusing an existing window if any.
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Return the window chosen.
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Currently we do not insist on selecting the window within its frame.
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If ARGS is an alist, use it as a list of frame parameter specs.
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If ARGS is a list whose car is a symbol,
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use (car ARGS) as a function to do the work.
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Pass it BUFFER as first arg, and (cdr ARGS) gives the rest of the 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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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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;; 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-frames nil) (pop-up-windows t)
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special-display-regexps special-display-buffer-names
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(window (display-buffer buffer)))
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;; Only do it if this is a new window:
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;; (set-window-dedicated-p window t)
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(let* ((pop-up-windows t)
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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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(with-current-buffer buffer
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(defvar x-display-name) ; term/x-win
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(defun make-frame-on-display (display &optional parameters)
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"Make a frame on X display DISPLAY.
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The optional second argument PARAMETERS specifies additional frame parameters."
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"Make a frame on display DISPLAY.
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The optional argument PARAMETERS specifies additional frame parameters."
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(interactive "sMake frame on display: ")
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(when (and (boundp 'ns-initialized) (not ns-initialized))
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(setq x-display-name display)
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(ns-initialize-window-system))
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(make-frame `((window-system . ns) (display . ,display) . ,parameters)))
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(unless (string-match "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display)
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(error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN"))
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(when (and (boundp 'x-initialized) (not x-initialized))
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(setq x-display-name display)
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(x-initialize-window-system))
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(make-frame `((window-system . x) (display . ,display) . ,parameters)))))
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(defun make-frame-on-tty (tty type &optional parameters)
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"Make a frame on terminal device TTY.
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TTY should be the file name of the tty device to use. TYPE
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should be the terminal type string of TTY, for example \"xterm\"
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or \"vt100\". The optional third argument PARAMETERS specifies
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additional frame parameters."
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;; Use "F" rather than "f", in case the device does not exist, as
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;; far as the filesystem is concerned.
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(interactive "FOpen frame on tty device: \nsTerminal type of %s: ")
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(error "Invalid terminal device"))
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(error "Invalid terminal type"))
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(if (eq window-system 'pc)
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(make-frame `((window-system . pc) (tty . ,tty) (tty-type . ,type) . ,parameters))
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(make-frame `((window-system . nil) (tty . ,tty) (tty-type . ,type) . ,parameters))))
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(cond ((featurep 'ns)
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(when (and (boundp 'ns-initialized) (not ns-initialized))
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(setq x-display-name display)
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(ns-initialize-window-system))
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(make-frame `((window-system . ns)
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(display . ,display) . ,parameters)))
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((eq system-type 'windows-nt)
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;; On Windows, ignore DISPLAY.
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(make-frame parameters))
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(unless (string-match-p "\\`[^:]*:[0-9]+\\(\\.[0-9]+\\)?\\'" display)
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(error "Invalid display, not HOST:SERVER or HOST:SERVER.SCREEN"))
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(when (and (boundp 'x-initialized) (not x-initialized))
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(setq x-display-name display)
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(x-initialize-window-system))
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(make-frame `((window-system . x)
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(display . ,display) . ,parameters)))))
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(declare-function x-close-connection "xfns.c" (terminal))
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(x-close-connection display))))
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(defun make-frame-command ()
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"Make a new frame, and select it if the terminal displays only one frame."
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"Make a new frame, on the same terminal as the selected frame.
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If the terminal is a text-only terminal, this also selects the
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(if (and window-system (not (eq window-system 'pc)))
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(if (display-graphic-p)
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(select-frame (make-frame))))
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(defun auto-raise-mode (arg)
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"Toggle whether or not the selected frame should auto-raise.
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With arg, turn auto-raise mode on if and only if arg is positive.
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With ARG, turn auto-raise mode on if and only if ARG is positive.
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Note that this controls Emacs's own auto-raise feature.
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Some window managers allow you to enable auto-raise for certain windows.
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You can use that for Emacs windows if you wish, but if you do,
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(defun auto-lower-mode (arg)
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"Toggle whether or not the selected frame should auto-lower.
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With arg, turn auto-lower mode on if and only if arg is positive.
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With ARG, turn auto-lower mode on if and only if ARG is positive.
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Note that this controls Emacs's own auto-lower feature.
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Some window managers allow you to enable auto-lower for certain windows.
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You can use that for Emacs windows if you wish, but if you do,
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(declare-function x-display-visual-class "xfns.c" (&optional terminal))
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(defun display-visual-class (&optional display)
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"Returns the visual class of DISPLAY.
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"Return the visual class of DISPLAY.
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The value is one of the symbols `static-gray', `gray-scale',
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`static-color', `pseudo-color', `true-color', or `direct-color'."
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(let ((frame-type (framep-on-display display)))
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;; Hourglass pointer
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(defcustom display-hourglass t
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"*Non-nil means show an hourglass pointer, when Emacs is busy.
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"Non-nil means show an hourglass pointer, when Emacs is busy.
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This feature only works when on a window system that can change
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cursor shapes."
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:group 'cursor)
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(defcustom hourglass-delay 1
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"*Seconds to wait before displaying an hourglass pointer when Emacs is busy."
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"Seconds to wait before displaying an hourglass pointer when Emacs is busy."
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:group 'cursor)
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(defcustom cursor-in-non-selected-windows t
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"*Non-nil means show a hollow box cursor in non-selected windows.
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"Non-nil means show a hollow box cursor in non-selected windows.
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If nil, don't show a cursor except in the selected window.
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If t, display a cursor related to the usual cursor type
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\(a solid box becomes hollow, a bar becomes a narrower bar).
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lisp/frame.el
