;;; frame.el --- multi-frame management independent of window systems
-;; Copyright (C) 1993-1994, 1996-1997, 2000-2012
-;; Free Software Foundation, Inc.
+;; Copyright (C) 1993-1994, 1996-1997, 2000-2013 Free Software
+;; Foundation, Inc.
;; Maintainer: FSF
;; Keywords: internal
;;; Commentary:
;;; Code:
+(eval-when-compile (require 'cl-lib))
+
(defvar frame-creation-function-alist
(list (cons nil
(if (fboundp 'tty-create-frame-with-faces)
ALIST supersede the corresponding parameters specified in
`default-frame-alist'.")
+(defvar display-format-alist nil
+ "Alist of patterns to decode display names.
+The car of each entry is a regular expression matching a display
+name string. The cdr is a symbol giving the window-system that
+handles the corresponding kind of display.")
+
;; The initial value given here used to ask for a minibuffer.
;; But that's not necessary, because the default is to have one.
;; By not specifying it here, we let an X resource specify it.
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 window-system-for-display (display)
+ "Return the window system for DISPLAY.
+Return nil if we don't know how to interpret DISPLAY."
+ (cl-loop for descriptor in display-format-alist
+ for pattern = (car descriptor)
+ for system = (cdr descriptor)
+ when (string-match-p pattern display) return system))
(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)))))
+ (make-frame (cons (cons 'display display) parameters)))
(declare-function x-close-connection "xfns.c" (terminal))
(window-system . nil) The frame should be displayed on a terminal device.
(window-system . x) The frame should be displayed in an X window.
+ (display . \":0\") The frame should appear on display :0.
+
(terminal . TERMINAL) The frame should use the terminal object TERMINAL.
In addition, any parameter specified in `default-frame-alist',
creating the frame, it runs the hook `after-make-frame-functions'
with one arg, the newly created frame.
+If a display parameter is supplied and a window-system is not,
+guess the window-system from the display.
+
On graphical displays, this function does not itself make the new
frame the selected frame. However, the window system may select
the new frame according to its own rules."
(interactive)
- (let* ((w (cond
+ (let* ((display (cdr (assq 'display parameters)))
+ (w (cond
((assq 'terminal parameters)
(let ((type (terminal-live-p (cdr (assq 'terminal parameters)))))
(cond
(t type))))
((assq 'window-system parameters)
(cdr (assq 'window-system parameters)))
+ (display
+ (or (window-system-for-display display)
+ (error "Don't know how to interpret display \"%S\""
+ display)))
(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))
+
+ (unless (get w 'window-system-initialized)
+ (funcall (cdr (assq w window-system-initialization-alist)) display)
+ (setq x-display-name display)
+ (put w 'window-system-initialized t))
+
;; Add parameters from `window-system-default-frame-alist'.
(dolist (p (cdr (assq w window-system-default-frame-alist)))
(unless (assq (car p) params)
(unless (memq vert '(left right nil))
(setq vert default-frame-scroll-bars))
(cons vert hor)))
+
+(defun frame-monitor-attributes (&optional frame)
+ "Return the attributes of the physical monitor dominating FRAME.
+If FRAME is omitted, describe the currently selected frame.
+
+A frame is dominated by a physical monitor when either the
+largest area of the frame resides in the monitor, or the monitor
+is the closest to the frame if the frame does not intersect any
+physical monitors.
+
+See `display-monitor-attributes-list' for the list of attribute
+keys and their meanings."
+ (or frame (setq frame (selected-frame)))
+ (cl-loop for attributes in (display-monitor-attributes-list frame)
+ for frames = (cdr (assq 'frames attributes))
+ if (memq frame frames) return attributes))
+
\f
;;;; Frame/display capabilities.
(defun selected-terminal ()
(cond
((eq frame-type 'pc)
(msdos-mouse-p))
- ((eq system-type 'windows-nt)
+ ((eq frame-type 'w32)
(with-no-warnings
(> w32-num-mouse-buttons 0)))
((memq frame-type '(x ns))
(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."
+For character terminals, each character counts as a single pixel.
+For graphical terminals, note that on \"multi-monitor\" setups this
+refers to the pixel height for all physical monitors associated
+with DISPLAY. To get information for each physical monitor, use
+`display-monitor-attributes-list'."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
(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."
+For character terminals, each character counts as a single pixel.
+For graphical terminals, note that on \"multi-monitor\" setups this
+refers to the pixel width for all physical monitors associated
+with DISPLAY. To get information for each physical monitor, use
+`display-monitor-attributes-list'."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
(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."
+If the information is unavailable, value is nil.
+For graphical terminals, note that on \"multi-monitor\" setups this
+refers to the height in millimeters for all physical monitors
+associated with DISPLAY. To get information for each physical
+monitor, use `display-monitor-attributes-list'."
(and (memq (framep-on-display display) '(x w32 ns))
(or (cddr (assoc (or display (frame-parameter nil 'display))
display-mm-dimensions-alist))
(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."
+If the information is unavailable, value is nil.
+For graphical terminals, note that on \"multi-monitor\" setups this
+refers to the width in millimeters for all physical monitors
+associated with DISPLAY. To get information for each physical
+monitor, use `display-monitor-attributes-list'."
(and (memq (framep-on-display display) '(x w32 ns))
(or (cadr (assoc (or display (frame-parameter nil 'display))
display-mm-dimensions-alist))
(t
'static-gray))))
+(declare-function x-display-monitor-attributes-list "xfns.c"
+ (&optional terminal))
+(declare-function w32-display-monitor-attributes-list "w32fns.c"
+ (&optional display))
+(declare-function ns-display-monitor-attributes-list "nsfns.m"
+ (&optional terminal))
+
+(defun display-monitor-attributes-list (&optional display)
+ "Return a list of physical monitor attributes on DISPLAY.
+Each element of the list represents the attributes of each
+physical monitor. The first element corresponds to the primary
+monitor.
+
+Attributes for a physical monitor is represented as an alist of
+attribute keys and values as follows:
+
+ geometry -- Position and size in pixels in the form of
+ (X Y WIDTH HEIGHT)
+ workarea -- Position and size of the workarea in pixels in the
+ form of (X Y WIDTH HEIGHT)
+ mm-size -- Width and height in millimeters in the form of
+ (WIDTH HEIGHT)
+ frames -- List of frames dominated by the physical monitor
+ name (*) -- Name of the physical monitor as a string
+
+where X, Y, WIDTH, and HEIGHT are integers. Keys labeled
+with (*) are optional.
+
+A frame is dominated by a physical monitor when either the
+largest area of the frame resides in the monitor, or the monitor
+is the closest to the frame if the frame does not intersect any
+physical monitors. Every non-tip frame (including invisible one)
+in a graphical display is dominated by exactly one physical
+monitor at a time, though it can span multiple (or no) physical
+monitors."
+ (let ((frame-type (framep-on-display display)))
+ (cond
+ ((eq frame-type 'x)
+ (x-display-monitor-attributes-list display))
+ ((eq frame-type 'w32)
+ (w32-display-monitor-attributes-list display))
+ ((eq frame-type 'ns)
+ (ns-display-monitor-attributes-list display))
+ (t
+ (let ((geometry (list 0 0 (display-pixel-width display)
+ (display-pixel-height display))))
+ `(((geometry . ,geometry)
+ (workarea . ,geometry)
+ (mm-size . (,(display-mm-width display)
+ ,(display-mm-height display)))
+ (frames . ,(frames-on-display-list display)))))))))
+
\f
;;;; Frame geometry values
:type 'number
:group 'cursor)
+(defcustom blink-cursor-blinks 10
+ "How many times to blink before using a solid cursor on NS and X.
+Use 0 or negative value to blink forever."
+ :version "24.4"
+ :type 'integer
+ :group 'cursor)
+
+(defvar blink-cursor-blinks-done 1
+ "Number of blinks done since we started blinking on NS and X")
+
(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.")
(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-blinks-done 1)
(setq blink-cursor-timer
(run-with-timer blink-cursor-interval blink-cursor-interval
'blink-cursor-timer-function))
(defun blink-cursor-timer-function ()
"Timer function of timer `blink-cursor-timer'."
- (internal-show-cursor nil (not (internal-show-cursor-p))))
+ (internal-show-cursor nil (not (internal-show-cursor-p)))
+ ;; Each blink is two calls to this function.
+ (when (memq window-system '(x ns))
+ (setq blink-cursor-blinks-done (1+ blink-cursor-blinks-done))
+ (when (and (> blink-cursor-blinks 0)
+ (<= (* 2 blink-cursor-blinks) blink-cursor-blinks-done))
+ (blink-cursor-suspend)
+ (add-hook 'post-command-hook 'blink-cursor-check))))
+
(defun blink-cursor-end ()
"Stop cursor blinking.
(cancel-timer blink-cursor-timer)
(setq blink-cursor-timer nil)))
+(defun blink-cursor-suspend ()
+ "Suspend cursor blinking on NS and X.
+This is called when no frame has focus and timers can be suspended.
+Timers are restarted by `blink-cursor-check', which is called when a
+frame receives focus."
+ (when (memq window-system '(x ns))
+ (blink-cursor-end)
+ (when blink-cursor-idle-timer
+ (cancel-timer blink-cursor-idle-timer)
+ (setq blink-cursor-idle-timer nil))))
+
+(defun blink-cursor-check ()
+ "Check if cursot blinking shall be restarted.
+This is done when a frame gets focus. Blink timers may be stopped by
+`blink-cursor-suspend'."
+ (when (and blink-cursor-mode
+ (not blink-cursor-idle-timer))
+ (remove-hook 'post-command-hook 'blink-cursor-check)
+ (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")
(define-minor-mode blink-cursor-mode
'blink-cursor-start))))
\f
+;; Frame maximization/fullscreen
+
+(defun toggle-frame-maximized ()
+ "Toggle maximization state of the selected frame.
+Maximize the selected frame or un-maximize if it is already maximized.
+Respect window manager screen decorations.
+If the frame is in fullscreen mode, don't change its mode,
+just toggle the temporary frame parameter `maximized',
+so the frame will go to the right maximization state
+after disabling fullscreen mode.
+See also `toggle-frame-fullscreen'."
+ (interactive)
+ (if (memq (frame-parameter nil 'fullscreen) '(fullscreen fullboth))
+ (modify-frame-parameters
+ nil
+ `((maximized
+ . ,(unless (eq (frame-parameter nil 'maximized) 'maximized)
+ 'maximized))))
+ (modify-frame-parameters
+ nil
+ `((fullscreen
+ . ,(unless (eq (frame-parameter nil 'fullscreen) 'maximized)
+ 'maximized))))))
+
+(defun toggle-frame-fullscreen ()
+ "Toggle fullscreen mode of the selected frame.
+Enable fullscreen mode of the selected frame or disable if it is
+already fullscreen. Ignore window manager screen decorations.
+When turning on fullscreen mode, remember the previous value of the
+maximization state in the temporary frame parameter `maximized'.
+Restore the maximization state when turning off fullscreen mode.
+See also `toggle-frame-maximized'."
+ (interactive)
+ (modify-frame-parameters
+ nil
+ `((maximized
+ . ,(unless (memq (frame-parameter nil 'fullscreen) '(fullscreen fullboth))
+ (frame-parameter nil 'fullscreen)))
+ (fullscreen
+ . ,(if (memq (frame-parameter nil 'fullscreen) '(fullscreen fullboth))
+ (if (eq (frame-parameter nil 'maximized) 'maximized)
+ 'maximized)
+ 'fullscreen)))))
+
+\f
;;;; 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)
+(define-key global-map [f11] 'toggle-frame-fullscreen)
+(define-key global-map [(meta f10)] 'toggle-frame-maximized)
+(define-key esc-map [f10] 'toggle-frame-maximized)
\f
;; Misc.
HCoop / bpt / emacs.git / blobdiff