;;; frame.el --- multi-frame management independent of window systems
-;; Copyright (C) 1993-1994, 1996-1997, 2000-2013 Free Software
+;; Copyright (C) 1993-1994, 1996-1997, 2000-2014 Free Software
;; Foundation, Inc.
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
;; Keywords: internal
;; Package: emacs
(delete-frame frame t)
;; Gildea@x.org says it is ok to ask questions before terminating.
(save-buffers-kill-emacs))))
+
+(defun handle-focus-in (_event)
+ "Handle a focus-in event.
+Focus-in events are usually bound to this function.
+Focus-in events occur when a frame has focus, but a switch-frame event
+is not generated.
+This function runs the hook `focus-in-hook'."
+ (interactive "e")
+ (run-hooks 'focus-in-hook))
+
+(defun handle-focus-out (_event)
+ "Handle a focus-out event.
+Focus-out events are usually bound to this function.
+Focus-out events occur when no frame has focus.
+This function runs the hook `focus-out-hook'."
+ (interactive "e")
+ (run-hooks 'focus-out-hook))
\f
;;;; Arrangement of frames at startup
(declare-function tool-bar-mode "tool-bar" (&optional arg))
+(defalias 'tool-bar-lines-needed 'tool-bar-height)
+
;; startup.el calls this function after loading the user's init
;; file. Now default-frame-alist and initial-frame-alist contain
;; information to which we must react; do what needs to be done.
(defun 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))
+ ;; MS-Windows doesn't know how to create a GUI frame in a -nw session.
+ (if (and (eq system-type 'windows-nt)
+ (null (window-system)))
+ nil
+ (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.
(declare-function x-display-screens "xfns.c" (&optional terminal))
(defun display-screens (&optional display)
- "Return the number of screens associated with DISPLAY."
+ "Return the number of screens associated with DISPLAY.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
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'."
+`display-monitor-attributes-list'.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
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'."
+`display-monitor-attributes-list'.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
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'."
+monitor, use `display-monitor-attributes-list'.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(and (memq (framep-on-display display) '(x w32 ns))
(or (cddr (assoc (or display (frame-parameter nil 'display))
display-mm-dimensions-alist))
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'."
+monitor, use `display-monitor-attributes-list'.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(and (memq (framep-on-display display) '(x w32 ns))
(or (cadr (assoc (or display (frame-parameter nil 'display))
display-mm-dimensions-alist))
(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."
+the question is inapplicable to a certain kind of display.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
(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."
+ "Return non-nil if DISPLAY's screen supports the SaveUnder feature.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
(declare-function x-display-planes "xfns.c" (&optional terminal))
(defun display-planes (&optional display)
- "Return the number of planes supported by DISPLAY."
+ "Return the number of planes supported by DISPLAY.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
(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."
+ "Return the number of color cells supported by DISPLAY.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
(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'."
+`static-color', `pseudo-color', `true-color', or `direct-color'.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((memq frame-type '(x w32 ns))
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."
+monitors.
+If DISPLAY is omitted or nil, it defaults to the selected frame's display."
(let ((frame-type (framep-on-display display)))
(cond
((eq frame-type 'x)
"Timer function of timer `blink-cursor-timer'."
(internal-show-cursor nil (not (internal-show-cursor-p)))
;; Each blink is two calls to this function.
- (when (memq window-system '(x ns w32))
- (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))))
+ (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 ()
(setq blink-cursor-timer nil)))
(defun blink-cursor-suspend ()
- "Suspend cursor blinking on NS, X and W32.
+ "Suspend cursor blinking.
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 w32))
- (blink-cursor-end)
- (when blink-cursor-idle-timer
- (cancel-timer blink-cursor-idle-timer)
- (setq blink-cursor-idle-timer nil))))
+ (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 cursor blinking shall be restarted.
(if blink-cursor-idle-timer (cancel-timer blink-cursor-idle-timer))
(setq blink-cursor-idle-timer nil)
(blink-cursor-end)
+ (remove-hook 'focus-in-hook #'blink-cursor-check)
+ (remove-hook 'focus-out-hook #'blink-cursor-suspend)
(when blink-cursor-mode
- ;; Hide the cursor.
- ;;(internal-show-cursor nil nil)
+ (add-hook 'focus-in-hook #'blink-cursor-check)
+ (add-hook 'focus-out-hook #'blink-cursor-suspend)
(setq blink-cursor-idle-timer
(run-with-idle-timer blink-cursor-delay
blink-cursor-delay
- 'blink-cursor-start))))
+ #'blink-cursor-start))))
\f
;; Frame maximization/fullscreen
HCoop / bpt / emacs.git / blobdiff