| blob | 42bc57272bb1f5597e3ff50515ceb527c6583c5e |
1 ;;; window.el --- GNU Emacs window commands aside from those written in C
3 ;; Copyright (C) 1985, 1989, 1992-1994, 2000-2012
4 ;; Free Software Foundation, Inc.
6 ;; Maintainer: FSF
7 ;; Keywords: internal
8 ;; Package: emacs
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 ;;; Commentary:
27 ;; Window tree functions.
29 ;;; Code:
34 "Execute BODY, then select the previously selected window.
35 The value returned is the value of the last form in BODY.
37 This macro saves and restores the selected window, as well as the
38 selected window in each frame. If the previously selected window
39 is no longer live, then whatever window is selected at the end of
40 BODY remains selected. If the previously selected window of some
41 frame is no longer live at the end of BODY, that frame's selected
42 window is left alone.
44 This macro saves and restores the current buffer, since otherwise
45 its normal operation could make a different buffer current. The
46 order of recently selected windows and the buffer list ordering
47 are not altered by this macro (unless they are altered in BODY)."
50 ;; It is necessary to save all of these, because calling
51 ;; select-window changes frame-selected-window for whatever
52 ;; frame that window is in.
66 ;; The following two functions are like `window-next-sibling' and
67 ;; `window-prev-sibling' but the WINDOW argument is _not_ optional (so
68 ;; they don't substitute the selected window for nil), and they return
69 ;; nil when WINDOW doesn't have a parent (like a frame's root window or
70 ;; a minibuffer window).
72 "Return WINDOW's right sibling.
73 Return nil if WINDOW is the root window of its frame. WINDOW can
74 be any window."
78 "Return WINDOW's left sibling.
79 Return nil if WINDOW is the root window of its frame. WINDOW can
80 be any window."
84 "Return WINDOW's first child window."
88 "Return number of WINDOW's child windows."
94 count))
97 "Return last child window of WINDOW."
101 window)
104 "Return t if OBJECT denotes a live window or internal window.
105 Otherwise, return nil; this includes the case where OBJECT is a
106 deleted window."
109 t))
112 "Return buffer specified by BUFFER-OR-NAME.
113 BUFFER-OR-NAME must be either a buffer or a string naming a live
114 buffer and defaults to the current buffer."
120 buffer-or-name
127 "Return frame specified by FRAME.
128 FRAME must be a live frame and defaults to the selected frame."
131 frame
136 "Return window specified by WINDOW.
137 If WINDOW is nil, return `selected-window'.
138 If WINDOW is a live window or internal window, return WINDOW;
139 if LIVE-ONLY is non-nil, return WINDOW for a live window only.
140 Otherwise, signal an error."
145 window
148 window
152 "If non-nil, standard functions ignore window parameters.
153 The functions currently affected by this are `split-window',
154 `delete-window', `delete-other-windows' and `other-window'.
156 An application may bind this to a non-nil value around calls to
160 "The absolute minimum number of lines of a window.
164 "The minimum number of lines of any window.
165 The value has to accommodate a mode- or header-line if present.
166 A value less than `window-safe-min-height' is ignored. The value
167 of this variable is honored when windows are resized or split.
169 Applications should never rebind this variable. To resize a
170 window to a height less than the one specified here, an
171 application should instead call `window-resize' with a non-nil
172 IGNORE argument. In order to have `split-window' make a window
173 shorter, explicitly specify the SIZE argument of that function."
179 "The absolute minimum number of columns of a window.
183 "The minimum number of columns of any window.
184 The value has to accommodate margins, fringes, or scrollbars if
185 present. A value less than `window-safe-min-width' is ignored.
186 The value of this variable is honored when windows are resized or
187 split.
189 Applications should never rebind this variable. To resize a
190 window to a width less than the one specified here, an
191 application should instead call `window-resize' with a non-nil
192 IGNORE argument. In order to have `split-window' make a window
193 narrower, explicitly specify the SIZE argument of that function."
199 "Return non-nil if WINDOW has siblings in a given direction.
200 If WINDOW is omitted or nil, it defaults to the selected window.
202 HORIZONTAL determines a direction for the window combination.
203 If HORIZONTAL is omitted or nil, return non-nil if WINDOW is part
204 of a vertical window combination.
205 If HORIZONTAL is non-nil, return non-nil if WINDOW is part of a
206 horizontal window combination."
215 "Return largest number of windows vertically arranged within WINDOW.
216 If WINDOW is omitted or nil, it defaults to the selected window.
217 If HORIZONTAL is non-nil, return the largest number of
218 windows horizontally arranged within WINDOW."
222 ;; If WINDOW is live, return 1.
227 ;; If WINDOW is iso-combined, return the sum of the values for all
228 ;; child windows of WINDOW.
234 count))
236 count))
238 ;; If WINDOW is not iso-combined, return the maximum value of any
239 ;; child window of WINDOW.
245 count))
247 count))))
250 "Helper function for `walk-window-tree' and `walk-window-subtree'."
268 "Run function FUN on each live window of FRAME.
269 FUN must be a function with one argument - a window. FRAME must
270 be a live frame and defaults to the selected one. ANY, if
271 non-nil means to run FUN on all live and internal windows of
272 FRAME.
274 This function performs a pre-order, depth-first traversal of the
275 window tree. If FUN changes the window tree, the result is
276 unpredictable."
282 "Run function FUN on the subtree of windows rooted at WINDOW.
283 WINDOW defaults to the selected window. FUN must be a function
284 with one argument - a window. By default, run FUN only on live
285 windows of the subtree. If the optional argument ANY is non-nil,
286 run FUN on all live and internal windows of the subtree. If
287 WINDOW is live, run FUN on WINDOW only.
289 This function performs a pre-order, depth-first traversal of the
290 subtree rooted at WINDOW. If FUN changes that tree, the result
291 is unpredictable."
296 "Return first window on FRAME with PARAMETER non-nil.
297 FRAME defaults to the selected frame. Optional argument VALUE
298 non-nil means only return a window whose window-parameter value
299 for PARAMETER equals VALUE (comparison is done with `equal').
300 Optional argument ANY non-nil means consider internal windows
301 too."
309 frame any))))
311 ;;; Atomic windows.
313 "Return root of atomic window WINDOW is a part of.
314 WINDOW can be any window and defaults to the selected one.
315 Return nil if WINDOW is not part of an atomic window."
321 root))
324 "Make WINDOW an atomic window.
325 WINDOW must be an internal window. Return WINDOW."
331 window t)
332 window))
335 "Subroutine of `window--atom-check'."
345 window t))
346 ;; count >= 1 must hold here. If there's no other
347 ;; window around dissolve this atomic window.
349 ;; Dissolve atomic window.
353 window t)))
354 ;; Check children.
358 ;; Check right sibling
362 "Check atomicity of all windows on FRAME.
363 FRAME defaults to the selected frame. If an atomic window is
364 wrongly configured, reset the atomicity of all its windows on
365 FRAME to nil. An atomic window is wrongly configured if it has
366 no child windows or one of its child windows is not atomic."
369 ;; Side windows.
374 "If non-nil, left and right side windows are full height.
375 Otherwise, top and bottom side windows are full width."
381 "Maximum number of side window slots.
382 The value is a list of four elements specifying the number of
383 side window slots on (in this order) the left, top, right and
384 bottom side of each frame. If an element is a number, this means
385 to display at most that many side windows on the corresponding
386 side. If an element is nil, this means there's no bound on the
387 number of slots on that side."
389 :risky t
390 :type
396 :value nil
403 :value nil
410 :value nil
417 :value nil
424 "Check the window-side parameter of all windows on FRAME.
425 FRAME defaults to the selected frame. If the configuration is
426 invalid, reset all window-side parameters to nil.
428 A valid configuration has to preserve the following invariant:
430 - If a window has a non-nil window-side parameter, it must have a
431 parent window and the parent window's window-side parameter
432 must be either nil or the same as for window.
434 - If windows with non-nil window-side parameters exist, there
435 must be at most one window of each side and non-side with a
436 parent whose window-side parameter is nil and there must be no
437 leaf window whose window-side parameter is nil."
439 side parent parent-side)
447 ;; The following `cond' seems a bit tedious, but I'd
448 ;; rather stick to using just the stack.
452 ;; A parent whose window-side is non-nil must
453 ;; have a child with the same window-side.
455 ;; Now check that there's more than one main window
456 ;; for any of none, left, top, right and bottom.
478 ;; A leaf window without window-side parameter,
479 ;; record its existence.
481 frame t))
483 ;; At least one non-side window exists, so there must
484 ;; be at least one side-window and no normal window.
486 ;; No non-side window exists, so there must be no side
487 ;; window either.
492 frame t))))
495 "Check atomic and side windows on FRAME.
496 FRAME defaults to the selected frame."
500 ;;; Window sizes.
502 "Non-nil in a buffer means windows displaying the buffer are fixed-size.
503 If the value is `height', then only the window's height is fixed.
504 If the value is `width', then only the window's width is fixed.
505 Any other non-nil value fixes both the width and the height.
507 Emacs won't change the size of any window displaying that buffer,
508 unless it has no other choice (like when deleting a neighboring
513 "Return non-nil if IGNORE says to ignore size restrictions for WINDOW."
517 "Return the minimum number of lines of WINDOW.
518 WINDOW can be an arbitrary window and defaults to the selected
519 one. Optional argument HORIZONTAL non-nil means return the
520 minimum number of columns of WINDOW.
522 Optional argument IGNORE non-nil means ignore any restrictions
523 imposed by fixed size windows, `window-min-height' or
524 `window-min-width' settings. IGNORE equal `safe' means live
525 windows may get as small as `window-safe-min-height' lines and
526 `window-safe-min-width' columns. IGNORE a window means ignore
527 restrictions for that window only."
532 "Internal function of `window-min-size'."
536 ;; WINDOW is an internal window.
538 ;; The minimum size of an iso-combination is the sum of
539 ;; the minimum sizes of its child windows.
544 ;; The minimum size of an ortho-combination is the maximum of
545 ;; the minimum sizes of its child windows.
550 value)
555 ;; The minimum size of a fixed size window is its size.
558 ;; If IGNORE equals `safe' or WINDOW return the safe values.
561 ;; For the minimum width of a window take fringes and
562 ;; scroll-bars into account. This is questionable and should
563 ;; be removed as soon as we are able to split (and resize)
564 ;; windows such that the new (or resized) windows can get a
565 ;; size less than the user-specified `window-min-height' and
566 ;; `window-min-width'.
571 (+ window-safe-min-width
584 window-min-width
587 ;; For the minimum height of a window take any mode- or
588 ;; header-line into account.
594 window-min-height
598 "Return DELTA if DELTA lines can be added to WINDOW.
599 Optional argument HORIZONTAL non-nil means return DELTA if DELTA
600 columns can be added to WINDOW. A return value of zero means
601 that no lines (or columns) can be added to WINDOW.
603 This function looks only at WINDOW and, recursively, its child
604 windows. The function `window-resizable' looks at other windows
605 as well.
607 DELTA positive means WINDOW shall be enlarged by DELTA lines or
608 columns. If WINDOW cannot be enlarged by DELTA lines or columns
609 return the maximum value in the range 0..DELTA by which WINDOW
610 can be enlarged.
612 DELTA negative means WINDOW shall be shrunk by -DELTA lines or
613 columns. If WINDOW cannot be shrunk by -DELTA lines or columns,
614 return the minimum value in the range DELTA..0 by which WINDOW
615 can be shrunk.
617 Optional argument IGNORE non-nil means ignore any restrictions
618 imposed by fixed size windows, `window-min-height' or
619 `window-min-width' settings. IGNORE equal `safe' means live
620 windows may get as small as `window-safe-min-height' lines and
621 `window-safe-min-width' columns. IGNORE any window means ignore
622 restrictions for that window only."
628 delta))
630 delta)
633 0
634 delta))
638 "Return t if WINDOW can be resized by DELTA lines.
639 For the meaning of the arguments of this function see the
640 doc-string of `window-sizable'."
647 "Internal function for `window-size-fixed-p'."
651 ;; WINDOW is an internal window.
653 ;; An iso-combination is fixed size if all its child
654 ;; windows are fixed-size.
658 ;; We found a non-fixed-size child window, so
659 ;; WINDOW's size is not fixed.
662 ;; All child windows are fixed-size, so WINDOW's size is
663 ;; fixed.
665 ;; An ortho-combination is fixed-size if at least one of its
666 ;; child windows is fixed-size.
669 ;; We found a fixed-size child window, so WINDOW's size
670 ;; is fixed.
673 ;; WINDOW is a live window.
680 "Return non-nil if WINDOW's height is fixed.
681 WINDOW can be an arbitrary window and defaults to the selected
682 window. Optional argument HORIZONTAL non-nil means return
683 non-nil if WINDOW's width is fixed.
685 If this function returns nil, this does not necessarily mean that
686 WINDOW can be resized in the desired direction. The function
687 `window-resizable' can tell that."
692 "Internal function for `window-min-delta'."
694 ;; If we can't go up, return zero.
695 0
696 ;; Else try to find a non-fixed-size sibling of WINDOW.
701 ;; In an iso-combination throw DELTA if we find at least one
702 ;; child window and that window is either not fixed-size or
703 ;; we can ignore fixed-sizeness.
713 ;; We found a non-fixed-size child window.
716 ;; In an ortho-combination set DELTA to the minimum value by
717 ;; which other child windows can shrink.
726 delta
730 "Return number of lines by which WINDOW can be shrunk.
731 WINDOW can be an arbitrary window and defaults to the selected
732 window. Return zero if WINDOW cannot be shrunk.
734 Optional argument HORIZONTAL non-nil means return number of
735 columns by which WINDOW can be shrunk.
737 Optional argument IGNORE non-nil means ignore any restrictions
738 imposed by fixed size windows, `window-min-height' or
739 `window-min-width' settings. IGNORE a window means ignore
740 restrictions for that window only. IGNORE equal `safe' means
741 live windows may get as small as `window-safe-min-height' lines
742 and `window-safe-min-width' columns.
744 Optional argument TRAIL `before' means only windows to the left
745 of or above WINDOW can be enlarged. Optional argument TRAIL
746 `after' means only windows to the right of or below WINDOW can be
747 enlarged.
749 Optional argument NOUP non-nil means don't go up in the window
750 tree but try to enlarge windows within WINDOW's combination only.
752 Optional argument NODOWN non-nil means don't check whether WINDOW
753 itself (and its child windows) can be shrunk; check only whether
754 at least one other window can be enlarged appropriately."
760 ;; If NODOWN is t, try to recover the entire size of WINDOW.
763 ;; If NODOWN is nil and WINDOW's size is already at its minimum,
764 ;; there's nothing to recover.
767 ;; Otherwise, try to recover whatever WINDOW is larger than its
768 ;; minimum size.
773 "Internal function of `window-max-delta'."
775 ;; Can't go up. Return DELTA.
776 delta
781 ;; For an iso-combination calculate how much we can get from
782 ;; other child windows.
791 (+ delta
795 ;; For an ortho-combination throw DELTA when at least one
796 ;; child window is fixed-size.
804 ;; When NOUP is nil, DELTA is all we can get.
805 delta
806 ;; Else try with parent of WINDOW, passing the DELTA we
807 ;; recovered so far.
811 "Return maximum number of lines WINDOW by which WINDOW can be enlarged.
812 WINDOW can be an arbitrary window and defaults to the selected
813 window. The return value is zero if WINDOW cannot be enlarged.
815 Optional argument HORIZONTAL non-nil means return maximum number
816 of columns by which WINDOW can be enlarged.
818 Optional argument IGNORE non-nil means ignore any restrictions
819 imposed by fixed size windows, `window-min-height' or
820 `window-min-width' settings. IGNORE a window means ignore
821 restrictions for that window only. IGNORE equal `safe' means
822 live windows may get as small as `window-safe-min-height' lines
823 and `window-safe-min-width' columns.
825 Optional argument TRAIL `before' means only windows to the left
826 of or below WINDOW can be shrunk. Optional argument TRAIL
827 `after' means only windows to the right of or above WINDOW can be
828 shrunk.
830 Optional argument NOUP non-nil means don't go up in the window
831 tree but try to obtain the entire space from windows within
832 WINDOW's combination.
834 Optional argument NODOWN non-nil means do not check whether
835 WINDOW itself (and its child windows) can be enlarged; check
836 only whether other windows can be shrunk appropriately."
840 ;; With IGNORE and NOWDON nil return zero if WINDOW has fixed
841 ;; size.
842 0
843 ;; WINDOW has no fixed size.
846 ;; Make NOUP also inhibit the min-size check.
848 "Return DELTA if WINDOW can be resized vertically by DELTA lines.
849 Optional argument HORIZONTAL non-nil means return DELTA if WINDOW
850 can be resized horizontally by DELTA columns. A return value of
851 zero means that WINDOW is not resizable.
853 DELTA positive means WINDOW shall be enlarged by DELTA lines or
854 columns. If WINDOW cannot be enlarged by DELTA lines or columns,
855 return the maximum value in the range 0..DELTA by which WINDOW
856 can be enlarged.
858 DELTA negative means WINDOW shall be shrunk by -DELTA lines or
859 columns. If WINDOW cannot be shrunk by -DELTA lines or columns,
860 return the minimum value in the range DELTA..0 that can be used
861 for shrinking WINDOW.
863 Optional argument IGNORE non-nil means ignore any restrictions
864 imposed by fixed size windows, `window-min-height' or
865 `window-min-width' settings. IGNORE a window means ignore
866 restrictions for that window only. IGNORE equal `safe' means
867 live windows may get as small as `window-safe-min-height' lines
868 and `window-safe-min-width' columns.
870 Optional argument TRAIL `before' means only windows to the left
871 of or below WINDOW can be shrunk. Optional argument TRAIL
872 `after' means only windows to the right of or above WINDOW can be
873 shrunk.
875 Optional argument NOUP non-nil means don't go up in the window
876 tree but check only whether space can be obtained from (or given
877 to) WINDOW's siblings.
879 Optional argument NODOWN non-nil means don't go down in the
880 window tree. This means do not check whether resizing would
881 violate size restrictions of WINDOW or its child windows."
886 delta))
889 delta))
893 "Return t if WINDOW can be resized vertically by DELTA lines.
894 For the meaning of the arguments of this function see the
895 doc-string of `window--resizable'."
899 delta)
901 delta)))
904 "Return DELTA if WINDOW can be resized vertically by DELTA lines.
905 Optional argument HORIZONTAL non-nil means return DELTA if WINDOW
906 can be resized horizontally by DELTA columns. A return value of
907 zero means that WINDOW is not resizable.
909 DELTA positive means WINDOW shall be enlarged by DELTA lines or
910 columns. If WINDOW cannot be enlarged by DELTA lines or columns
911 return the maximum value in the range 0..DELTA by which WINDOW
912 can be enlarged.
914 DELTA negative means WINDOW shall be shrunk by -DELTA lines or
915 columns. If WINDOW cannot be shrunk by -DELTA lines or columns,
916 return the minimum value in the range DELTA..0 that can be used
917 for shrinking WINDOW.
919 Optional argument IGNORE non-nil means ignore any restrictions
920 imposed by fixed size windows, `window-min-height' or
921 `window-min-width' settings. IGNORE a window means ignore
922 restrictions for that window only. IGNORE equal `safe' means
923 live windows may get as small as `window-safe-min-height' lines
924 and `window-safe-min-width' columns."
929 "Return the total height or width of window WINDOW.
930 If WINDOW is omitted or nil, it defaults to the selected window.
932 If HORIZONTAL is omitted or nil, return the total height of
933 WINDOW, in lines, like `window-total-height'. Otherwise return
934 the total width, in columns, like `window-total-width'."
939 ;; Eventually we should make `window-height' obsolete.
942 ;; See discussion in bug#4543.
944 "Return t if WINDOW is as high as the containing frame.
945 More precisely, return t if and only if the total height of
946 WINDOW equals the total height of the root window of WINDOW's
947 frame. WINDOW can be any window and defaults to the selected
948 one."
954 "Return t if WINDOW is as wide as the containing frame.
955 More precisely, return t if and only if the total width of WINDOW
956 equals the total width of the root window of WINDOW's frame.
957 WINDOW can be any window and defaults to the selected one."
963 "Return the height or width of WINDOW's text area.
964 If WINDOW is omitted or nil, it defaults to the selected window.
965 Signal an error if the window is not live.
967 If HORIZONTAL is omitted or nil, return the height of the text
968 area, like `window-body-height'. Otherwise, return the width of
969 the text area, like `window-body-width'."
974 ;; Eventually we should make `window-height' obsolete.
978 "Return the current scroll bar settings for WINDOW.
979 WINDOW must be a live window and defaults to the selected one.
981 The return value is a cons cell (VERTICAL . HORIZONTAL) where
982 VERTICAL specifies the current location of the vertical scroll
983 bars (`left', `right', or nil), and HORIZONTAL specifies the
984 current location of the horizontal scroll bars (`top', `bottom',
985 or nil).
987 Unlike `window-scroll-bars', this function reports the scroll bar
988 type actually used, once frame defaults and `scroll-bar-mode' are
989 taken into account."
1002 "Cycle through all live windows, calling FUN for each one.
1003 FUN must specify a function with a window as its sole argument.
1004 The optional arguments MINIBUF and ALL-FRAMES specify the set of
1005 windows to include in the walk.
1007 MINIBUF t means include the minibuffer window even if the
1008 minibuffer is not active. MINIBUF nil or omitted means include
1009 the minibuffer window only if the minibuffer is active. Any
1010 other value means do not include the minibuffer window even if
1011 the minibuffer is active.
1013 ALL-FRAMES nil or omitted means consider all windows on the
1014 selected frame, plus the minibuffer window if specified by the
1015 MINIBUF argument. If the minibuffer counts, consider all windows
1016 on all frames that share that minibuffer too. The following
1017 non-nil values of ALL-FRAMES have special meanings:
1019 - t means consider all windows on all existing frames.
1021 - `visible' means consider all windows on all visible frames on
1022 the current terminal.
1024 - 0 (the number zero) means consider all windows on all visible
1025 and iconified frames on the current terminal.
1027 - A frame means consider all windows on that frame only.
1029 Anything else means consider all windows on the selected frame
1030 and no others.
1032 This function changes neither the order of recently selected
1033 windows nor the buffer list."
1034 ;; If we start from the minibuffer window, don't fail to come
1035 ;; back to it.
1038 ;; Make sure to not mess up the order of recently selected
1039 ;; windows. Use `save-selected-window' and `select-window'
1040 ;; with second argument non-nil for this purpose.
1048 "Return value of WINDOW's point.
1049 WINDOW can be any live window and defaults to the selected one.
1051 This function is like `window-point' with one exception: If
1052 WINDOW is selected, it returns the value of `point' of WINDOW's
1053 buffer regardless of whether that buffer is current or not."
1061 "Set value of WINDOW's point to POS.
1062 WINDOW can be any live window and defaults to the selected one.
1064 This function is like `set-window-point' with one exception: If
1065 WINDOW is selected, it moves `point' of WINDOW's buffer to POS
1066 regardless of whether that buffer is current or not."
1074 "Return t if WINDOW is at SIDE of its containing frame.
1075 WINDOW can be any window and defaults to the selected one. SIDE
1076 can be any of the symbols `left', `top', `right' or `bottom'.
1077 The default value nil is handled like `bottom'."
1089 "Return list of all windows on SIDE of FRAME.
1090 FRAME must be a live frame and defaults to the selected frame.
1091 SIDE can be any of the symbols `left', `top', `right' or
1092 `bottom'. The default value nil is handled like `bottom'."
1099 frame)
1103 "Support function for `window-in-direction'."
1115 "Return window in DIRECTION as seen from WINDOW.
1116 DIRECTION must be one of `above', `below', `left' or `right'.
1117 WINDOW must be a live window and defaults to the selected one.
1118 IGNORE, when non-nil means a window can be returned even if its
1119 `no-other-window' parameter is non-nil."
1132 ;; The column / row value of `posn-at-point' can be nil for the
1133 ;; mini-window, guard against that.
1144 best best-2 best-diff-2-new)
1151 ;; Ignore ourselves.
1153 ;; Ignore W unless IGNORE is non-nil.
1159 ;; W is to the left or right of WINDOW and covers POSN.
1169 ;; W is to the left or right of WINDOW but does not
1170 ;; cover POSN.
1185 ;; W is above or below WINDOW and covers POSN.
1195 ;; W is above or below WINDOW but does not cover POSN.
1210 "Return a live window satisfying PREDICATE.
1211 More precisely, cycle through all windows calling the function
1212 PREDICATE on each one of them with the window as its sole
1213 argument. Return the first window for which PREDICATE returns
1214 non-nil. Windows are scanned starting with the window following
1215 the selected window. If no window satisfies PREDICATE, return
1216 DEFAULT.
1218 MINIBUF t means include the minibuffer window even if the
1219 minibuffer is not active. MINIBUF nil or omitted means include
1220 the minibuffer window only if the minibuffer is active. Any
1221 other value means do not include the minibuffer window even if
1222 the minibuffer is active.
1224 ALL-FRAMES nil or omitted means consider all windows on the selected
1225 frame, plus the minibuffer window if specified by the MINIBUF
1226 argument. If the minibuffer counts, consider all windows on all
1227 frames that share that minibuffer too. The following non-nil
1228 values of ALL-FRAMES have special meanings:
1230 - t means consider all windows on all existing frames.
1232 - `visible' means consider all windows on all visible frames on
1233 the current terminal.
1235 - 0 (the number zero) means consider all windows on all visible
1236 and iconified frames on the current terminal.
1238 - A frame means consider all windows on that frame only.
1240 Anything else means consider all windows on the selected frame
1241 and no others."
1245 minibuf all-frames))
1248 default))
1253 "Return the least recently used window on frames specified by ALL-FRAMES.
1254 Return a full-width window if possible. A minibuffer window is
1255 never a candidate. A dedicated window is never a candidate
1256 unless DEDICATED is non-nil, so if all windows are dedicated, the
1257 value is nil. Avoid returning the selected window if possible.
1259 The following non-nil values of the optional argument ALL-FRAMES
1260 have special meanings:
1262 - t means consider all windows on all existing frames.
1264 - `visible' means consider all windows on all visible frames on
1265 the current terminal.
1267 - 0 (the number zero) means consider all windows on all visible
1268 and iconified frames on the current terminal.
1270 - A frame means consider all windows on that frame only.
1272 Any other value of ALL-FRAMES means consider all windows on the
1273 selected frame and no others."
1289 "Return the most recently used window on frames specified by ALL-FRAMES.
1290 Do not return a minibuffer window.
1292 The following non-nil values of the optional argument ALL-FRAMES
1293 have special meanings:
1295 - t means consider all windows on all existing frames.
1297 - `visible' means consider all windows on all visible frames on
1298 the current terminal.
1300 - 0 (the number zero) means consider all windows on all visible
1301 and iconified frames on the current terminal.
1303 - A frame means consider all windows on that frame only.
1305 Any other value of ALL-FRAMES means consider all windows on the
1306 selected frame and no others."
1313 best-window))
1316 "Return the largest window on frames specified by ALL-FRAMES.
1317 A minibuffer window is never a candidate. A dedicated window is
1318 never a candidate unless DEDICATED is non-nil, so if all windows
1319 are dedicated, the value is nil.
1321 The following non-nil values of the optional argument ALL-FRAMES
1322 have special meanings:
1324 - t means consider all windows on all existing frames.
1326 - `visible' means consider all windows on all visible frames on
1327 the current terminal.
1329 - 0 (the number zero) means consider all windows on all visible
1330 and iconified frames on the current terminal.
1332 - A frame means consider all windows on that frame only.
1334 Any other value of ALL-FRAMES means consider all windows on the
1335 selected frame and no others."
1337 best-window size)
1345 best-window))
1348 "Return list of all windows displaying BUFFER-OR-NAME, or nil if none.
1349 BUFFER-OR-NAME may be a buffer or the name of an existing buffer
1350 and defaults to the current buffer. Windows are scanned starting
1351 with the selected window.
1353 MINIBUF t means include the minibuffer window even if the
1354 minibuffer is not active. MINIBUF nil or omitted means include
1355 the minibuffer window only if the minibuffer is active. Any
1356 other value means do not include the minibuffer window even if
1357 the minibuffer is active.
1359 ALL-FRAMES nil or omitted means consider all windows on the
1360 selected frame, plus the minibuffer window if specified by the
1361 MINIBUF argument. If the minibuffer counts, consider all windows
1362 on all frames that share that minibuffer too. The following
1363 non-nil values of ALL-FRAMES have special meanings:
1365 - t means consider all windows on all existing frames.
1367 - `visible' means consider all windows on all visible frames on
1368 the current terminal.
1370 - 0 (the number zero) means consider all windows on all visible
1371 and iconified frames on the current terminal.
1373 - A frame means consider all windows on that frame only.
1375 Anything else means consider all windows on the selected frame
1376 and no others."
1378 windows)
1385 "Return t if WINDOW is the currently active minibuffer window."
1389 "Return the number of live windows on the selected frame.
1390 The optional argument MINIBUF specifies whether the minibuffer
1391 window shall be counted. See `walk-windows' for the precise
1392 meaning of this argument."
1394 \f
1395 ;;; Resizing windows.
1397 "Reset resize values for all windows on FRAME.
1398 FRAME defaults to the selected frame.
1400 This function stores the current value of `window-total-size' applied
1401 with argument HORIZONTAL in the new total size of all windows on
1402 FRAME. It also resets the new normal size of each of these
1403 windows."
1408 "Internal function of `window--resize-reset'."
1409 ;; Register old size in the new total size.
1411 ;; Reset new normal size.
1418 ;; The following routine is used to manually resize the minibuffer
1419 ;; window and is currently used, for example, by ispell.el.
1421 "Resize minibuffer window WINDOW by DELTA lines.
1422 If WINDOW cannot be resized by DELTA lines make it as large (or
1423 as small) as possible but don't signal an error."
1431 ;; Sanitize DELTA.
1438 ;; Resize now.
1440 ;; Ideally we should be able to resize just the last child of root
1441 ;; here. See the comment in `resize-root-window-vertically' for
1442 ;; why we do not do that.
1445 ;; The following routine catches the case where we want to resize
1446 ;; a minibuffer-only frame.
1450 "Resize WINDOW vertically by DELTA lines.
1451 WINDOW can be an arbitrary window and defaults to the selected
1452 one. An attempt to resize the root window of a frame will raise
1453 an error though.
1455 DELTA a positive number means WINDOW shall be enlarged by DELTA
1456 lines. DELTA negative means WINDOW shall be shrunk by -DELTA
1457 lines.
1459 Optional argument HORIZONTAL non-nil means resize WINDOW
1460 horizontally by DELTA columns. In this case a positive DELTA
1461 means enlarge WINDOW by DELTA columns. DELTA negative means
1462 WINDOW shall be shrunk by -DELTA columns.
1464 Optional argument IGNORE non-nil means ignore any restrictions
1465 imposed by fixed size windows, `window-min-height' or
1466 `window-min-width' settings. IGNORE any window means ignore
1467 restrictions for that window only. IGNORE equal `safe' means
1468 live windows may get as small as `window-safe-min-height' lines
1469 and `window-safe-min-width' columns.
1471 This function resizes other windows proportionally and never
1472 deletes any windows. If you want to move only the low (right)
1473 edge of WINDOW consider using `adjust-window-trailing-edge'
1474 instead."
1477 sibling)
1490 ;; If window-combination-resize is nil, WINDOW is part of an
1491 ;; iso-combination, and WINDOW's neighboring right or left
1492 ;; sibling can be resized as requested, resize that sibling.
1499 normal-delta))
1502 normal-delta)))
1503 ;; Otherwise, resize all other windows in the same combination.
1510 "Return non-nil if WINDOW shall be skipped by resizing routines."
1513 (defun window--resize-child-windows-normal (parent horizontal window this-delta &optional trail other-delta)
1514 "Recursively set new normal height of child windows of window PARENT.
1515 HORIZONTAL non-nil means set the new normal width of these
1516 windows. WINDOW specifies a child window of PARENT that has been
1517 resized by THIS-DELTA lines (columns).
1519 Optional argument TRAIL either 'before or 'after means set values
1520 for windows before or after WINDOW only. Optional argument
1521 OTHER-DELTA a number specifies that this many lines (columns)
1522 have been obtained from (or returned to) an ancestor window of
1523 PARENT in order to resize WINDOW."
1527 ;; When WINDOW gets deleted and we can return its entire
1528 ;; space to its siblings, use WINDOW's normal size as the
1529 ;; normal delta.
1531 ;; In any other case calculate the normal delta from the
1532 ;; relation of THIS-DELTA to the total size of PARENT.
1538 ;; Set parent-normal to the sum of the normal sizes of all child
1539 ;; windows of PARENT that shall be resized, excluding only WINDOW
1540 ;; and any windows specified by the optional TRAIL argument.
1551 ;; Set the new normal size of all child windows of PARENT from what
1552 ;; they should have contributed for recovering THIS-DELTA lines
1553 ;; (columns).
1567 delta-normal))
1568 ;; Don't drop below 0.
1573 ;; Set the new normal size of windows from what they should have
1574 ;; contributed for recovering OTHER-DELTA lines (columns).
1577 other-delta)))
1589 ;; Don't drop below 0.
1593 ;; Set the new normal size of WINDOW to what is left by the sum of
1594 ;; the normal sizes of its siblings.
1596 window
1607 ;; Don't get larger than 1 or smaller than 0.
1610 (defun window--resize-child-windows (parent delta &optional horizontal window ignore trail edge)
1611 "Resize child windows of window PARENT vertically by DELTA lines.
1612 PARENT must be a vertically combined internal window.
1614 Optional argument HORIZONTAL non-nil means resize child windows of
1615 PARENT horizontally by DELTA columns. In this case PARENT must
1616 be a horizontally combined internal window.
1618 WINDOW, if specified, must denote a child window of PARENT that
1619 is resized by DELTA lines.
1621 Optional argument IGNORE non-nil means ignore any restrictions
1622 imposed by fixed size windows, `window-min-height' or
1623 `window-min-width' settings. IGNORE equal `safe' means live
1624 windows may get as small as `window-safe-min-height' lines and
1625 `window-safe-min-width' columns. IGNORE any window means ignore
1626 restrictions for that window only.
1628 Optional arguments TRAIL and EDGE, when non-nil, restrict the set
1629 of windows that shall be resized. If TRAIL equals `before',
1630 resize only windows on the left or above EDGE. If TRAIL equals
1631 `after', resize only windows on the right or below EDGE. Also,
1632 preferably only resize windows adjacent to EDGE.
1634 Return the symbol `normalized' if new normal sizes have been
1635 already set by this routine."
1639 best-window best-value)
1651 sub)
1656 edge)
1661 edge)
1664 ;; Resize only windows adjacent to EDGE.
1667 sub delta horizontal ignore t trail edge)
1670 ;; Assign new normal sizes.
1679 ;; Return 'normalized to notify `window--resize-siblings' that
1680 ;; normal sizes have been already set.
1682 ;; Resize all windows proportionally.
1687 ;; Ignore windows to skip and fixed-size child windows -
1688 ;; in the latter case make it a window to skip.
1693 ;; When shrinking store the number of lines/cols we can get
1694 ;; from this window here together with the total/normal size
1695 ;; factor.
1697 sub
1699 ;; We used to call this with NODOWN t, "fixed" 2011-05-11.
1702 parent-total)
1705 ;; When enlarging store the total/normal size factor only
1707 sub
1709 parent-total)
1716 ;; Shrink windows by delta.
1735 best-window
1740 parent-total)
1743 ;; Enlarge windows by delta.
1761 best-window
1763 parent-total)
1771 ;; Reset new normal size fields so `window-resize-apply'
1772 ;; won't use them to apply new sizes.
1776 ;; Resize this window's child windows (back-engineering
1777 ;; delta from sub's old and new total sizes).
1781 ;; For the TRAIL non-nil case we have to resize SUB
1782 ;; recursively even if it's size does not change.
1784 sub delta horizontal ignore nil trail edge))))
1788 "Resize other windows when WINDOW is resized vertically by DELTA lines.
1789 Optional argument HORIZONTAL non-nil means resize other windows
1790 when WINDOW is resized horizontally by DELTA columns. WINDOW
1791 itself is not resized by this function.
1793 Optional argument IGNORE non-nil means ignore any restrictions
1794 imposed by fixed size windows, `window-min-height' or
1795 `window-min-width' settings. IGNORE equal `safe' means live
1796 windows may get as small as `window-safe-min-height' lines and
1797 `window-safe-min-width' columns. IGNORE any window means ignore
1798 restrictions for that window only.
1800 Optional arguments TRAIL and EDGE, when non-nil, refine the set
1801 of windows that shall be resized. If TRAIL equals `before',
1802 resize only windows on the left or above EDGE. If TRAIL equals
1803 `after', resize only windows on the right or below EDGE. Also,
1804 preferably only resize windows adjacent to EDGE."
1809 ;; In an iso-combination try to extract DELTA from WINDOW's
1810 ;; siblings.
1812 this-delta other-delta)
1813 ;; Decide which windows shall be left alone.
1817 ;; Make sure WINDOW is left alone when
1818 ;; resizing its siblings.
1822 ;; Make sure this sibling is left alone when
1823 ;; resizing its siblings.
1827 ;; Set this-delta to t to signal that we found a sibling
1828 ;; of WINDOW whose size is not fixed.
1833 ;; Set this-delta to what we can get from WINDOW's siblings.
1835 ;; A deletion, presumably. We must handle this case
1836 ;; specially since `window--resizable' can't be used.
1838 ;; There's at least one resizable sibling we can
1839 ;; give WINDOW's size to.
1841 ;; No resizable sibling exists.
1843 ;; Any other form of resizing.
1847 ;; Set other-delta to what we still have to get from
1848 ;; ancestor windows of parent.
1851 ;; Unless we got everything from WINDOW's siblings, PARENT
1852 ;; must be resized by other-delta lines or columns.
1856 ;; We haven't got anything from WINDOW's siblings but we
1857 ;; must update the normal sizes to respect other-delta.
1859 parent horizontal window this-delta trail other-delta)
1860 ;; We did get something from WINDOW's siblings which means
1861 ;; we have to resize their child windows.
1864 window ignore trail edge)
1865 ;; If `window--resize-child-windows' returns
1866 ;; 'normalized, this means it has set the
1867 ;; normal sizes already.
1869 ;; Set the normal sizes.
1871 parent horizontal window this-delta trail other-delta))
1872 ;; Set DELTA to what we still have to get from ancestor
1873 ;; windows.
1876 ;; In an ortho-combination all siblings of WINDOW must be
1877 ;; resized by DELTA.
1885 ;; "Go up."
1887 parent delta horizontal ignore trail edge)))))
1890 "Resize WINDOW vertically by DELTA lines.
1891 Optional argument HORIZONTAL non-nil means resize WINDOW
1892 horizontally by DELTA columns.
1894 Optional argument IGNORE non-nil means ignore any restrictions
1895 imposed by fixed size windows, `window-min-height' or
1896 `window-min-width' settings. IGNORE equal `safe' means live
1897 windows may get as small as `window-safe-min-height' lines and
1898 `window-safe-min-width' columns. IGNORE any window means ignore
1899 restrictions for that window only.
1901 Optional argument ADD non-nil means add DELTA to the new total
1902 size of WINDOW.
1904 Optional arguments TRAIL and EDGE, when non-nil, refine the set
1905 of windows that shall be resized. If TRAIL equals `before',
1906 resize only windows on the left or above EDGE. If TRAIL equals
1907 `after', resize only windows on the right or below EDGE. Also,
1908 preferably only resize windows adjacent to EDGE.
1910 This function recursively resizes WINDOW's child windows to fit the
1911 new size. Make sure that WINDOW is `window--resizable' before
1912 calling this function. Note that this function does not resize
1913 siblings of WINDOW or WINDOW's parent window. You have to
1914 eventually call `window-resize-apply' in order to make resizing
1915 actually take effect."
1917 ;; Add DELTA to the new total size of WINDOW.
1924 ;; In an iso-combination resize child windows according to their
1925 ;; normal sizes.
1927 window delta horizontal nil ignore trail edge))
1928 ;; In an ortho-combination resize each child window by DELTA.
1932 sub delta horizontal ignore t trail edge)
1936 "Resize root window WINDOW vertically by DELTA lines.
1937 HORIZONTAL non-nil means resize root window WINDOW horizontally
1938 by DELTA columns.
1940 IGNORE non-nil means ignore any restrictions imposed by fixed
1941 size windows, `window-min-height' or `window-min-width' settings.
1943 This function is only called by the frame resizing routines. It
1944 resizes windows proportionally and never deletes any windows."
1951 "Resize root window WINDOW vertically by DELTA lines.
1952 If DELTA is less than zero and we can't shrink WINDOW by DELTA
1953 lines, shrink it as much as possible. If DELTA is greater than
1954 zero, this function can resize fixed-size windows in order to
1955 recover the necessary lines.
1957 Return the number of lines that were recovered.
1959 This function is only called by the minibuffer window resizing
1960 routines. It resizes windows proportionally and never deletes
1961 any windows."
1972 ;; Ideally, we would resize just the last window in a combination
1973 ;; but that's not feasible for the following reason: If we grow
1974 ;; the minibuffer window and the last window cannot be shrunk any
1975 ;; more, we shrink another window instead. But if we then shrink
1976 ;; the minibuffer window again, the last window might get enlarged
1977 ;; and the state after shrinking is not the state before growing.
1978 ;; So, in practice, we'd need a history variable to record how to
1979 ;; proceed. But I'm not sure how such a variable could work with
1980 ;; repeated minibuffer window growing steps.
1982 delta)))
1985 "Move WINDOW's bottom edge by DELTA lines.
1986 Optional argument HORIZONTAL non-nil means move WINDOW's right
1987 edge by DELTA columns. WINDOW defaults to the selected window.
1989 If DELTA is greater zero, then move the edge downwards or to the
1990 right. If DELTA is less than zero, move the edge upwards or to
1991 the left. If the edge can't be moved by DELTA lines or columns,
1992 move it as far as possible in the desired direction."
1996 left this-delta min-delta max-delta)
1997 ;; Find the edge we want to move.
2010 ;; Set LEFT to the first resizable window on the left. This step is
2011 ;; needed to handle fixed-size windows.
2024 ;; Set RIGHT to the first resizable window on the right. This step
2025 ;; is needed to handle fixed-size windows.
2038 ;; LEFT and RIGHT (which might be both internal windows) are now the
2039 ;; two windows we want to resize.
2045 ;; We can't get the whole DELTA - move as far as possible.
2048 ;; Start resizing.
2050 ;; Try to enlarge LEFT first.
2054 left this-delta horizontal nil t 'before
2058 ;; Shrink windows on right of LEFT.
2060 left delta horizontal nil 'after
2068 ;; We can't get the whole DELTA - move as far as possible.
2071 ;; Start resizing.
2073 ;; Try to enlarge RIGHT.
2077 right this-delta horizontal nil t 'after
2081 ;; Shrink windows on left of RIGHT.
2088 ;; Don't report an error in the standard case.
2090 ;; But do report an error if applying the changes fails.
2094 "Make selected window DELTA lines taller.
2095 Interactively, if no argument is given, make the selected window
2096 one line taller. If optional argument HORIZONTAL is non-nil,
2097 make selected window wider by DELTA columns. If DELTA is
2098 negative, shrink selected window by -DELTA lines or columns.
2099 Return nil."
2112 horizontal))))
2115 "Make selected window DELTA lines smaller.
2116 Interactively, if no argument is given, make the selected window
2117 one line smaller. If optional argument HORIZONTAL is non-nil,
2118 make selected window narrower by DELTA columns. If DELTA is
2119 negative, enlarge selected window by -DELTA lines or columns.
2120 Return nil."
2133 horizontal))))
2136 "Maximize WINDOW.
2137 Make WINDOW as large as possible without deleting any windows.
2138 WINDOW can be any window and defaults to the selected window."
2145 "Minimize WINDOW.
2146 Make WINDOW as small as possible without deleting any windows.
2147 WINDOW can be any window and defaults to the selected window."
2152 \f
2154 "Return non-nil if WINDOW is the root window of its frame."
2158 "Return window subtree rooted at WINDOW.
2159 Optional argument NEXT non-nil means include WINDOW's right
2160 siblings in the return value.
2162 See the documentation of `window-tree' for a description of the
2163 return value."
2176 list))
2181 "Return the window tree of frame FRAME.
2182 FRAME must be a live frame and defaults to the selected frame.
2183 The return value is a list of the form (ROOT MINI), where ROOT
2184 represents the window tree of the frame's root window, and MINI
2185 is the frame's minibuffer window.
2187 If the root window is not split, ROOT is the root window itself.
2188 Otherwise, ROOT is a list (DIR EDGES W1 W2 ...) where DIR is nil
2189 for a horizontal split, and t for a vertical split. EDGES gives
2190 the combined size and position of the child windows in the split,
2191 and the rest of the elements are the child windows in the split.
2192 Each of the child windows may again be a window or a list
2193 representing a window split, and so on. EDGES is a list (LEFT
2194 TOP RIGHT BOTTOM) as returned by `window-edges'."
2197 \f
2199 "Select another window in cyclic ordering of windows.
2200 COUNT specifies the number of windows to skip, starting with the
2201 selected window, before making the selection. If COUNT is
2202 positive, skip COUNT windows forwards. If COUNT is negative,
2203 skip -COUNT windows backwards. COUNT zero means do not skip any
2204 window, so select the selected window. In an interactive call,
2205 COUNT is the numeric prefix argument. Return nil.
2207 If the `other-window' parameter of the selected window is a
2208 function and `ignore-window-parameters' is nil, call that
2209 function with the arguments COUNT and ALL-FRAMES.
2211 This function does not select a window whose `no-other-window'
2212 window parameter is non-nil.
2214 This function uses `next-window' for finding the window to
2215 select. The argument ALL-FRAMES has the same meaning as in
2216 `next-window', but the MINIBUF argument of `next-window' is
2217 always effectively nil."
2222 old-window old-count)
2225 ;; `next-window' and `previous-window' may return a window we are
2226 ;; not allowed to select. Hence we need an exit strategy in case
2227 ;; all windows are non-selectable.
2234 ;; Keep out of infinite loops. When COUNT has not changed
2235 ;; since we last looked at `window' we're probably in one.
2239 ;; The first non-selectable window `next-window' got us:
2240 ;; Remember it and the current value of COUNT.
2250 ;; Keep out of infinite loops. When COUNT has not changed
2251 ;; since we last looked at `window' we're probably in one.
2255 ;; The first non-selectable window `previous-window' got
2256 ;; us: Remember it and the current value of COUNT.
2263 ;; Always return nil.
2264 nil))))
2266 ;; This should probably return non-nil when the selected window is part
2267 ;; of an atomic window whose root is the frame's root window.
2269 "Return non-nil if the selected window is the only window.
2270 Optional arg NOMINI non-nil means don't count the minibuffer
2271 even if it is active. Otherwise, the minibuffer is counted
2272 when it is active.
2274 Optional argument ALL-FRAMES specifies the set of frames to
2275 consider, see also `next-window'. ALL-FRAMES nil or omitted
2276 means consider windows on the selected frame only, plus the
2277 minibuffer window if specified by the NOMINI argument. If the
2278 minibuffer counts, consider all windows on all frames that share
2279 that minibuffer too. The remaining non-nil values of ALL-FRAMES
2280 with a special meaning are:
2282 - t means consider all windows on all existing frames.
2284 - `visible' means consider all windows on all visible frames on
2285 the current terminal.
2287 - 0 (the number zero) means consider all windows on all visible
2288 and iconified frames on the current terminal.
2290 - A frame means consider all windows on that frame only.
2292 Anything else means consider all windows on the selected frame
2293 and no others."
2299 \f
2300 ;;; Deleting windows.
2302 "Return t if WINDOW can be safely deleted from its frame.
2303 Return `frame' if deleting WINDOW should also delete its
2304 frame."
2308 ;; Handle atomicity.
2316 ;; WINDOW's frame can be deleted only if there are other frames
2317 ;; on the same terminal.
2323 ;; WINDOW can be deleted unless it is the main window of its
2324 ;; frame.
2325 t))))
2328 "Return t if WINDOW is either ROOT or a member of ROOT's subtree."
2338 "Delete WINDOW.
2339 WINDOW can be an arbitrary window and defaults to the selected
2340 one. Return nil.
2342 If the variable `ignore-window-parameters' is non-nil or the
2343 `delete-window' parameter of WINDOW equals t, do not process any
2344 parameters of WINDOW. Otherwise, if the `delete-window'
2345 parameter of WINDOW specifies a function, call that function with
2346 WINDOW as its sole argument and return the value returned by that
2347 function.
2349 Otherwise, if WINDOW is part of an atomic window, call
2350 `delete-window' with the root of the atomic window as its
2351 argument. If WINDOW is the only window on its frame or the last
2352 non-side window, signal an error."
2358 atom-root)
2361 ;; Handle window parameters.
2363 ;; Ignore window parameters if `ignore-window-parameters' tells
2364 ;; us so or `delete-window' equals t.
2367 ;; The `delete-window' parameter specifies the function to call.
2368 ;; If that function is `ignore' nothing is done. It's up to the
2369 ;; function called here to avoid infinite recursion.
2386 ;; Emacs 23 preferably gives WINDOW's space to its left
2387 ;; sibling.
2393 ;; Resize WINDOW's sibling.
2399 ;; Can do without resizing fixed-size windows.
2402 ;; Can't do without resizing fixed-size windows.
2404 ;; Actually delete WINDOW.
2409 ;; `delete-window-internal' has selected a window that should
2410 ;; not be selected, fix this here.
2414 ;; Always return nil.
2415 nil))))
2418 "Make WINDOW fill its frame.
2419 WINDOW may be any window and defaults to the selected one.
2420 Return nil.
2422 If the variable `ignore-window-parameters' is non-nil or the
2423 `delete-other-windows' parameter of WINDOW equals t, do not
2424 process any parameters of WINDOW. Otherwise, if the
2425 `delete-other-windows' parameter of WINDOW specifies a function,
2426 call that function with WINDOW as its sole argument and return
2427 the value returned by that function.
2429 Otherwise, if WINDOW is part of an atomic window, call this
2430 function with the root of the atomic window as its argument. If
2431 WINDOW is a non-side window, make WINDOW the only non-side window
2432 on the frame. Side windows are not deleted. If WINDOW is a side
2433 window signal an error."
2439 atom-root side-main)
2443 ;; Ignore window parameters if `ignore-window-parameters' is t or
2444 ;; `delete-other-windows' is t.
2447 ;; The `delete-other-windows' parameter specifies the function
2448 ;; to call. If the function is `ignore' no windows are deleted.
2449 ;; It's up to the function called to avoid infinite recursion.
2456 ;; Set side-main to the major non-side window.
2460 ;; If WINDOW is the main non-side window, do nothing.
2465 ;; Always return nil.
2466 nil)))
2469 "Delete the windows in the same column with WINDOW, but not WINDOW itself.
2471 if you often split windows horizontally."
2483 ;;; Windows and buffers.
2485 ;; `prev-buffers' and `next-buffers' are two reserved window slots used
2486 ;; for (1) determining which buffer to show in the window when its
2487 ;; buffer shall be buried or killed and (2) which buffer to show for
2488 ;; `switch-to-prev-buffer' and `switch-to-next-buffer'.
2490 ;; `prev-buffers' consists of <buffer, window-start, window-point>
2491 ;; triples. The entries on this list are ordered by the time their
2492 ;; buffer has been removed from the window, the most recently removed
2493 ;; buffer's entry being first. The window-start and window-point
2494 ;; components are `window-start' and `window-point' at the time the
2495 ;; buffer was removed from the window which implies that the entry must
2496 ;; be added when `set-window-buffer' removes the buffer from the window.
2498 ;; `next-buffers' is the list of buffers that have been replaced
2499 ;; recently by `switch-to-prev-buffer'. These buffers are the least
2500 ;; preferred candidates of `switch-to-prev-buffer' and the preferred
2501 ;; candidates of `switch-to-next-buffer' to switch to. This list is
2502 ;; reset to nil by any action changing the window's buffer with the
2503 ;; exception of `switch-to-prev-buffer' and `switch-to-next-buffer'.
2504 ;; `switch-to-prev-buffer' pushes the buffer it just replaced on it,
2505 ;; `switch-to-next-buffer' pops the last pushed buffer from it.
2507 ;; Both `prev-buffers' and `next-buffers' may reference killed buffers
2508 ;; if such a buffer was killed while the window was hidden within a
2509 ;; window configuration. Such killed buffers get removed whenever
2510 ;; `switch-to-prev-buffer' or `switch-to-next-buffer' encounter them.
2512 ;; The following function is called by `set-window-buffer' _before_ it
2513 ;; replaces the buffer of the argument window with the new buffer.
2515 "Record WINDOW's buffer.
2516 WINDOW must be a live window and defaults to the selected one."
2520 ;; Reset WINDOW's next buffers. If needed, they are resurrected by
2521 ;; `switch-to-prev-buffer' and `switch-to-next-buffer'.
2525 ;; Remove all entries for BUFFER from WINDOW's previous buffers.
2529 ;; Don't record insignificant buffers.
2531 ;; Add an entry for buffer to WINDOW's previous buffers.
2538 ;; We have an entry, update marker positions.
2541 ;; Make new markers.
2549 "Unrecord BUFFER in WINDOW.
2550 WINDOW must be a live window and defaults to the selected one.
2551 BUFFER must be a live buffer and defaults to the buffer of
2552 WINDOW."
2561 "Set WINDOW's buffer to BUFFER.
2562 Optional argument START non-nil means set WINDOW's start position
2563 to START. Optional argument POINT non-nil means set WINDOW's
2564 point to POINT. If WINDOW is selected this also sets BUFFER's
2565 `point' to POINT. If WINDOW is selected and the buffer it showed
2566 before was current this also makes BUFFER the current buffer."
2573 ;; Don't force window-start here (even if POINT is nil).
2579 "If non-nil, allow switching to an already visible buffer.
2580 If this variable is non-nil, `switch-to-prev-buffer' and
2581 `switch-to-next-buffer' may switch to an already visible buffer
2582 provided the buffer was shown in the argument window before. If
2583 this variable is nil, `switch-to-prev-buffer' and
2584 `switch-to-next-buffer' always try to avoid switching to a buffer
2585 that is already visible in another window on the same frame."
2591 "In WINDOW switch to previous buffer.
2592 WINDOW must be a live window and defaults to the selected one.
2594 Optional argument BURY-OR-KILL non-nil means the buffer currently
2595 shown in WINDOW is about to be buried or killed and consequently
2596 shall not be switched to in future invocations of this command."
2601 ;; Save this since it's destroyed by `set-window-buffer'.
2603 entry new-buffer killed-buffers visible)
2608 ;; Scan WINDOW's previous buffers first, skipping entries of next
2609 ;; buffers.
2620 ;; Try to avoid showing a buffer visible in some other window.
2625 ;; Scan reverted buffer list of WINDOW's frame next, skipping
2626 ;; entries of next buffers. Note that when we bury or kill a
2627 ;; buffer we don't reverse the global buffer list to avoid showing
2628 ;; a buried buffer instead. Otherwise, we must reverse the global
2629 ;; buffer list in order to make sure that switching to the
2630 ;; previous/next buffer traverse it in opposite directions.
2639 ;; Try to avoid showing a buffer visible in some other window.
2646 ;; Scan reverted next buffers last (must not use nreverse
2647 ;; here!).
2649 ;; Actually, buffer _must_ be live here since otherwise it
2650 ;; would have been caught in the scan of previous buffers.
2661 ;; Show a buffer visible in another window.
2667 ;; Remove `old-buffer' from WINDOW's previous and (restored list
2668 ;; of) next buffers.
2673 ;; Move `old-buffer' to head of WINDOW's restored list of next
2674 ;; buffers.
2678 ;; Remove killed buffers from WINDOW's previous and next buffers.
2686 ;; Return new-buffer.
2687 new-buffer))
2690 "In WINDOW switch to next buffer.
2691 WINDOW must be a live window and defaults to the selected one."
2697 new-buffer entry killed-buffers visible)
2702 ;; Scan WINDOW's next buffers first.
2713 ;; Scan the buffer list of WINDOW's frame next, skipping previous
2714 ;; buffers entries.
2720 ;; Try to avoid showing a buffer visible in some other window.
2725 ;; Scan WINDOW's reverted previous buffers last (must not use
2726 ;; nreverse here!)
2735 ;; Try to avoid showing a buffer visible in some other window.
2742 ;; Show a buffer visible in another window.
2747 ;; Remove `new-buffer' from and restore WINDOW's next buffers.
2750 ;; Remove killed buffers from WINDOW's previous and next buffers.
2758 ;; Return new-buffer.
2759 new-buffer))
2762 "Search LIST for a valid buffer to display in FRAME.
2763 Return nil when all buffers in LIST are undesirable for display,
2764 otherwise return the first suitable buffer in LIST.
2766 Buffers not visible in windows are preferred to visible buffers,
2767 unless VISIBLE-OK is non-nil.
2768 If the optional argument FRAME is nil, it defaults to the selected frame.
2769 If BUFFER is non-nil, ignore occurrences of that buffer in LIST."
2770 ;; This logic is more or less copied from other-buffer.
2773 found buf)
2786 "Return the last buffer in FRAME's buffer list.
2787 If BUFFER is the last buffer, return the preceding buffer
2788 instead. Buffers not visible in windows are preferred to visible
2789 buffers, unless optional argument VISIBLE-OK is non-nil.
2790 Optional third argument FRAME nil or omitted means use the
2791 selected frame's buffer list. If no such buffer exists, return
2792 the buffer `*scratch*', creating it if necessary."
2795 buffer visible-ok frame)
2799 scratch)))
2802 "Function called to automatically hide frames.
2803 The function is called with one argument - a frame.
2805 Functions affected by this option are those that bury a buffer
2806 shown in a separate frame like `quit-window' and `bury-buffer'."
2810 function)
2816 "Delete WINDOW if possible.
2817 WINDOW must be a live window and defaults to the selected one.
2818 Optional argument DEDICATED-ONLY non-nil means to delete WINDOW
2819 only if it's dedicated to its buffer. Optional argument KILL
2820 means the buffer shown in window will be killed. Return non-nil
2821 if WINDOW gets deleted or its frame is auto-hidden."
2836 t)))))
2839 "Put BUFFER-OR-NAME at the end of the list of all buffers.
2840 There it is the least likely candidate for `other-buffer' to
2842 select by default.
2844 You can specify a buffer name as BUFFER-OR-NAME, or an actual
2845 buffer object. If BUFFER-OR-NAME is nil or omitted, bury the
2846 current buffer. Also, if BUFFER-OR-NAME is nil or omitted,
2847 remove the current buffer from the selected window if it is
2848 displayed there."
2851 ;; If `buffer-or-name' is not on the selected frame we unrecord it
2852 ;; although it's not "here" (call it a feature).
2854 ;; Handle case where `buffer-or-name' is nil and the current buffer
2855 ;; is shown in the selected window.
2860 ;; Switch to another buffer in window.
2864 ;; Always return nil.
2865 nil))
2868 "Switch to the last buffer in the buffer list."
2873 "In selected window switch to next buffer."
2880 "In selected window switch to previous buffer."
2887 "Delete all windows showing BUFFER-OR-NAME.
2888 BUFFER-OR-NAME may be a buffer or the name of an existing buffer
2889 and defaults to the current buffer.
2891 The following non-nil values of the optional argument FRAME
2892 have special meanings:
2894 - t means consider all windows on the selected frame only.
2896 - `visible' means consider all windows on all visible frames on
2897 the current terminal.
2899 - 0 (the number zero) means consider all windows on all visible
2900 and iconified frames on the current terminal.
2902 - A frame means consider all windows on that frame only.
2904 Any other value of FRAME means consider all windows on all
2905 frames.
2907 When a window showing BUFFER-OR-NAME is dedicated and the only
2908 window of its frame, that frame is deleted when there are other
2909 frames left."
2912 ;; Handle the "inverted" meaning of the FRAME argument wrt other
2913 ;; `window-list-1' based function.
2920 ;; Delete frame if and only if window is dedicated.
2923 ;; Delete window.
2926 ;; In window switch to previous buffer.
2929 ;; If a window doesn't show BUFFER, unrecord BUFFER in it.
2933 "Replace BUFFER-OR-NAME with some other buffer in all windows showing it.
2934 BUFFER-OR-NAME may be a buffer or the name of an existing buffer
2935 and defaults to the current buffer.
2937 When a window showing BUFFER-OR-NAME is dedicated, that window is
2938 deleted. If that window is the only window on its frame, the
2939 frame is deleted too when there are other frames left. If there
2940 are no other frames left, some other buffer is displayed in that
2941 window.
2943 This function removes the buffer denoted by BUFFER-OR-NAME from
2944 all window-local buffer lists."
2950 ;; Switch to another buffer in window.
2953 ;; Unrecord BUFFER in WINDOW.
2957 "Quit WINDOW and bury its buffer.
2958 WINDOW must be a live window and defaults to the selected one.
2959 With prefix argument KILL non-nil, kill the buffer instead of
2960 burying it.
2962 According to information stored in WINDOW's `quit-restore' window
2963 parameter either (1) delete WINDOW and its frame, (2) delete
2964 WINDOW, (3) restore the buffer previously displayed in WINDOW,
2965 or (4) make WINDOW display some other buffer than the present
2966 one. If non-nil, reset `quit-restore' parameter to nil."
2977 buffer))))
2978 prev-buffer)))
2979 quad resize)
2984 ;; Delete WINDOW if possible.
2986 ;; If the previously selected window is still alive, select it.
2992 ;; Show another buffer stored in quit-restore parameter.
2998 ;; Try to resize WINDOW to its old height but don't signal an
2999 ;; error.
3003 ;; Restore WINDOW's previous buffer, start and point position.
3006 ;; Unrecord WINDOW's buffer here (Bug#9937) to make sure it's not
3007 ;; re-recorded by `set-window-buffer'.
3009 ;; Reset the quit-restore parameter.
3011 ;; Select old window.
3015 ;; Show some other buffer in WINDOW and reset the quit-restore
3016 ;; parameter.
3018 ;; Make sure that WINDOW is no more dedicated.
3022 ;; Kill WINDOW's old-buffer if requested
3028 "Quit all windows showing BUFFER-OR-NAME.
3029 BUFFER-OR-NAME may be a buffer or the name of an existing buffer
3030 and defaults to the current buffer. Optional argument KILL
3031 non-nil means to kill BUFFER-OR-NAME. KILL nil means to bury
3032 BUFFER-OR-NAME. Optional argument FRAME is handled as by
3033 `delete-windows-on'.
3035 This function calls `quit-window' on all candidate windows
3036 showing BUFFER-OR-NAME."
3039 ;; Handle the "inverted" meaning of the FRAME argument wrt other
3040 ;; `window-list-1' based function.
3045 ;; If a window doesn't show BUFFER, unrecord BUFFER in it.
3047 \f
3048 ;;; Splitting windows.
3050 "Return minimum height of any window when splitting windows.
3051 Optional argument HORIZONTAL non-nil means return minimum width."
3057 "Make a new window adjacent to WINDOW.
3058 WINDOW can be any window and defaults to the selected one.
3059 Return the new window which is always a live window.
3061 Optional argument SIZE a positive number means make WINDOW SIZE
3062 lines or columns tall. If SIZE is negative, make the new window
3063 -SIZE lines or columns tall. If and only if SIZE is non-nil, its
3064 absolute value can be less than `window-min-height' or
3065 `window-min-width'; so this command can make a new window as
3066 small as one line or two columns. SIZE defaults to half of
3067 WINDOW's size. Interactively, SIZE is the prefix argument.
3069 Optional third argument SIDE nil (or `below') specifies that the
3070 new window shall be located below WINDOW. SIDE `above' means the
3071 new window shall be located above WINDOW. In both cases SIZE
3072 specifies the new number of lines for WINDOW (or the new window
3073 if SIZE is negative) including space reserved for the mode and/or
3074 header line.
3076 SIDE t (or `right') specifies that the new window shall be
3077 located on the right side of WINDOW. SIDE `left' means the new
3078 window shall be located on the left of WINDOW. In both cases
3079 SIZE specifies the new number of columns for WINDOW (or the new
3080 window provided SIZE is negative) including space reserved for
3081 fringes and the scrollbar or a divider column. Any other non-nil
3082 value for SIDE is currently handled like t (or `right').
3084 If the variable `ignore-window-parameters' is non-nil or the
3085 `split-window' parameter of WINDOW equals t, do not process any
3086 parameters of WINDOW. Otherwise, if the `split-window' parameter
3087 of WINDOW specifies a function, call that function with all three
3088 arguments and return the value returned by that function.
3091 root of that atomic window. The new window does not become a
3092 member of that atomic window.
3094 If WINDOW is live, properties of the new window like margins and
3095 scrollbars are inherited from WINDOW. If WINDOW is an internal
3096 window, these properties as well as the buffer displayed in the
3097 new window are inherited from the window selected on WINDOW's
3098 frame. The selected window is not changed by this function."
3110 ;; Rebind `window-combination-limit' since in some cases we may
3111 ;; have to override its value.
3113 atom-root)
3118 ;; Ignore window parameters if either `ignore-window-parameters'
3119 ;; is t or the `split-window' parameter equals t.
3122 ;; The `split-window' parameter specifies the function to call.
3123 ;; If that function is `ignore', do nothing.
3125 ;; If WINDOW is part of an atomic window, split the root window
3126 ;; of that atomic window instead.
3135 ;; WINDOW is a side root window. To make sure that a new parent
3136 ;; window gets created set `window-combination-limit' to t.
3140 ;; If `window-combination-resize' is non-nil and SIZE is a
3141 ;; non-negative integer, we cannot reasonably resize other
3142 ;; windows. Rather bind `window-combination-limit' to t to make
3143 ;; sure that subsequent window deletions are handled correctly.
3147 ;; `parent-size' is the size of WINDOW's parent, provided
3148 ;; it has one.
3150 ;; `resize' non-nil means we are supposed to resize other
3151 ;; windows in WINDOW's combination.
3154 ;; Resize makes sense in iso-combinations only.
3156 ;; `old-size' is the current size of WINDOW.
3158 ;; `new-size' is the specified or calculated size of the
3159 ;; new window.
3165 ;; When resizing try to give the new window the
3166 ;; average size of a window in its combination.
3169 (/ parent-size
3171 parent horizontal))))
3172 ;; Else try to give the new window half the size
3173 ;; of WINDOW (plus an eventual odd line).
3176 ;; SIZE non-negative specifies the new size of WINDOW.
3178 ;; Note: Specifying a non-negative SIZE is practically
3179 ;; always done as workaround for making the new window
3180 ;; appear above or on the left of the new window (the
3181 ;; ispell window is a typical example of that). In all
3182 ;; these cases the SIDE argument should be set to 'above
3183 ;; or 'left in order to support the 'resize option.
3184 ;; Here we have to nest the windows instead, see above.
3187 ;; SIZE negative specifies the size of the new window.
3189 new-parent new-normal)
3191 ;; Check SIZE.
3196 ;; SIZE unspecified, resizing.
3198 ;; Try again with minimum split size.
3204 ;; SIZE unspecified, no resizing.
3209 window-safe-min-width
3210 window-safe-min-width))))
3211 ;; SIZE specified as new size of old window. If the new size
3212 ;; is larger than the old size or the size of the new window
3213 ;; would be less than the safe minimum, signal an error.
3216 ;; SIZE specified, resizing.
3218 ;; If we cannot resize the parent give up.
3224 ;; SIZE specification violates minimum size restrictions.
3230 ;; Make new-parent non-nil if we need a new parent window;
3231 ;; either because we want to nest or because WINDOW is not
3232 ;; iso-combined.
3236 ;; Make new-normal the normal size of the new window.
3244 ;; Try to get space from OLD's siblings. We could go "up" and
3245 ;; try getting additional space from surrounding windows but
3246 ;; we won't be able to return space to those windows when we
3247 ;; delete the one we create here. Hence we do not go up.
3256 ;; Get entire space from WINDOW.
3261 new-normal)))
3264 ;; Inherit window-side parameters, if any.
3271 ;; Always return the new window.
3272 new)))))
3274 ;; I think this should be the default; I think people will prefer it--rms.
3277 If nil, adjust point in the two windows to minimize redisplay.
3278 This option applies only to `split-window-below' and functions
3279 that call it. The low-level `split-window' function always keeps
3280 the original point in both windows."
3285 "Split the selected window into two windows, one above the other.
3286 The selected window is above. The newly split-off window is
3287 below, and displays the same buffer. Return the new window.
3289 If optional argument SIZE is omitted or nil, both windows get the
3290 same height, or close to it. If SIZE is positive, the upper
3291 \(selected) window gets SIZE lines. If SIZE is negative, the
3292 lower (new) window gets -SIZE lines.
3294 If the variable `split-window-keep-point' is non-nil, both
3295 windows get the same value of point as the selected window.
3296 Otherwise, the window starts are chosen so as to minimize the
3297 amount of redisplay; this is convenient on slow terminals."
3302 moved-by-window-height moved new-window bottom)
3304 ;; `split-window' would not signal an error here.
3309 ;; Use `save-excursion' around vertical movements below
3310 ;; (Bug#10971). Note: When the selected window's buffer has a
3311 ;; header line, up to two lines of the buffer may not show up
3312 ;; in the resulting configuration.
3330 ;; Always copy quit-restore parameter in interactive use.
3334 new-window))
3339 "Split the selected window into two side-by-side windows.
3340 The selected window is on the left. The newly split-off window
3341 is on the right, and displays the same buffer. Return the new
3342 window.
3344 If optional argument SIZE is omitted or nil, both windows get the
3345 same width, or close to it. If SIZE is positive, the left-hand
3346 \(selected) window gets SIZE columns. If SIZE is negative, the
3347 right-hand (new) window gets -SIZE columns. Here, SIZE includes
3348 the width of the window's scroll bar; if there are no scroll
3349 bars, it includes the width of the divider column to the window's
3350 right, if any."
3354 new-window)
3356 ;; `split-window' would not signal an error here.
3359 ;; Always copy quit-restore parameter in interactive use.
3363 new-window))
3366 \f
3367 ;;; Balancing windows.
3369 ;; The following routine uses the recycled code from an old version of
3370 ;; `window--resize-child-windows'. It's not very pretty, but coding it the way the
3371 ;; new `window--resize-child-windows' code does would hardly make it any shorter or
3372 ;; more readable (FWIW we'd need three loops - one to calculate the
3373 ;; minimum sizes per window, one to enlarge or shrink windows until the
3374 ;; new parent-size matches, and one where we shrink the largest/enlarge
3375 ;; the smallest window).
3377 "Subroutine of `balance-windows-1'.
3378 WINDOW must be a vertical combination (horizontal if HORIZONTAL
3379 is non-nil."
3385 failed size sub-total sub-delta sub-amount rest)
3400 ;; Ignore child windows that should be ignored or are stuck.
3406 ;; Register the new total size for this child window.
3411 ;; We failed and need a new round.
3417 ;; Fix rounding by trying to enlarge non-stuck windows by one line
3418 ;; (column) until `rest' is zero.
3426 ;; Fix rounding by trying to enlarge stuck windows by one line
3427 ;; (column) until `rest' equals zero.
3437 ;; Record new normal sizes.
3443 ;; Recursively balance each window's child windows.
3448 "Subroutine of `balance-windows'."
3460 "Balance the sizes of windows of WINDOW-OR-FRAME.
3461 WINDOW-OR-FRAME is optional and defaults to the selected frame.
3462 If WINDOW-OR-FRAME denotes a frame, balance the sizes of all
3463 windows of that frame. If WINDOW-OR-FRAME denotes a window,
3464 recursively balance the sizes of all child windows of that
3465 window."
3474 window-or-frame)
3478 ;; Balance vertically.
3482 ;; Balance horizontally.
3488 "Return t if WINDOW cannot be resized in DIRECTION.
3489 WINDOW defaults to the selected window. DIRECTION can be
3490 nil (i.e. any), `height' or `width'."
3497 ;;; A different solution to balance-windows.
3499 "Factor by which the window area should be over-estimated.
3500 This is used by `balance-windows-area'.
3505 "Wrapper around `window-resize' with error checking.
3506 Arguments WINDOW, DELTA and HORIZONTAL are passed on to that function."
3507 ;; `window-resize' may fail if delta is too large.
3514 ;;(message "adjust: %s" (error-message-string err))
3518 "Make all visible windows the same area (approximately).
3519 See also `window-area-factor' to change the relative size of
3520 specific buffers."
3523 ;; Remove fixed-size windows.
3528 next)
3529 ;; Resizing a window changes the size of surrounding windows in complex
3530 ;; ways, so it's difficult to balance them all. The introduction of
3531 ;; `adjust-window-trailing-edge' made it a bit easier, but it is still
3532 ;; very difficult to do. `balance-window' above takes an off-line
3533 ;; approach: get the whole window tree, then balance it, then try to
3534 ;; adjust the windows so they fit the result.
3535 ;; Here, instead, we take a "local optimization" approach, where we just
3536 ;; go through all the windows several times until nothing needs to be
3537 ;; changed. The main problem with this approach is that it's difficult
3538 ;; to make sure it terminates, so we use some heuristic to try and break
3539 ;; off infinite loops.
3540 ;; After a round without any change, we allow a second, to give a chance
3541 ;; to the carry to propagate a minor imbalance from the end back to
3542 ;; the beginning.
3544 ;; (message "New round")
3550 ;; (assert (eq next (or (cadr (member win wins)) (car wins))))
3568 ;; Maybe diff is actually closer to 1 than to 0.
3572 ;; Change things smoothly.
3575 ;; Make sure negligible differences don't accumulate to
3576 ;; become significant.
3578 ;; This used `adjust-window-trailing-edge' before and uses
3579 ;; `window-resize' now. Error wrapping is still needed.
3581 ;; (sit-for 0.5)
3583 ;; If the same change has been seen already for this window,
3584 ;; we're most likely in an endless loop, so don't count it as
3585 ;; a change.
3589 ;; We've now basically balanced all the windows.
3590 ;; But there may be some minor off-by-one imbalance left over,
3591 ;; so let's do some fine tuning.
3592 ;; (bw-finetune wins)
3593 ;; (message "Done in %d rounds" round)
3594 ))
3596 ;;; Window states, how to get them and how to put them in a window.
3598 "Helper function for `window-state-get'."
3607 `(,type
3615 list)
3616 ;; Make copies of those window parameters whose
3617 ;; persistence property is `writable' if WRITABLE is
3618 ;; non-nil and non-nil if WRITABLE is nil.
3621 window-persistent-parameters))))
3624 ;; Add `clone-of' parameter if necessary.
3626 window-persistent-parameters))))
3633 ;; All buffer related things go in here.
3658 "Return state of WINDOW as a Lisp object.
3659 WINDOW can be any window and defaults to the root window of the
3660 selected frame.
3662 Optional argument WRITABLE non-nil means do not use markers for
3663 sampling `window-point' and `window-start'. Together, WRITABLE
3664 and the variable `window-persistent-parameters' specify which
3665 window parameters are saved by this function. WRITABLE should be
3666 non-nil when the return value shall be written to a file and read
3667 back in another session. Otherwise, an application may run into
3668 an `invalid-read-syntax' error while attempting to read back the
3669 value from file.
3671 The return value can be used as argument for `window-state-put'
3672 to put the state recorded here into an arbitrary window. The
3673 value can be also stored on disk and read back in a new session."
3677 window
3680 ;; The return value is a cons whose car specifies some constraints on
3681 ;; the size of WINDOW. The cdr lists the states of the child windows
3682 ;; of WINDOW.
3684 ;; Frame related things would go into a function, say `frame-state',
3685 ;; calling `window-state-get' to insert the frame's root window.
3698 "Helper function for `window-state-put'."
3703 ;; For a leaf window just add unprocessed entries to
3704 ;; `window-state-put-list'.
3710 size new)
3712 ;; Find the next child window. WINDOW always points to the
3713 ;; real window that we want to fill with what we find here.
3716 ;; The last child window. Below `window--state-put-1'
3717 ;; will put into it whatever ITEM has in store.
3719 ;; Not the last child window, prepare for splitting
3720 ;; WINDOW. SIZE is the new (and final) size of the old
3721 ;; window.
3724 ;; Use total size.
3726 ;; Use normalized size and round.
3730 item))))))
3732 ;; Use safe sizes, we try to resize later.
3734 window-safe-min-height
3735 window-safe-min-width)))
3740 ;; We must inherit the combination limit, otherwise
3741 ;; we might mess up handling of atomic and side
3742 ;; window.
3744 ;; Give up if we can't resize window down to safe sizes.
3749 ;; When creating the first child window add for parent
3750 ;; unprocessed entries to `window-state-put-list'.
3753 window-state-put-list))))
3755 ;; Now process the current window (either the one we've just
3756 ;; split or the last child of its parent).
3758 ;; Continue with the last window split off.
3762 "Helper function for `window-state-put'."
3770 ;; Reset window's parameters and assign saved ones (we might want
3771 ;; a `remove-window-parameters' function here).
3777 ;; Process buffer related state.
3779 ;; We don't want to raise an error here so we create a buffer if
3780 ;; there's none.
3792 ;; Adjust vertically.
3794 ;; A fixed height window, try to restore the original size.
3797 window-size-fixed)
3800 ;; Else check whether the window is not high enough.
3806 ;; Adjust horizontally.
3808 ;; A fixed width window, try to restore the original size.
3811 window-size-fixed)
3814 ;; Else check whether the window is not wide enough.
3820 ;; Set dedicated status.
3822 ;; Install positions (maybe we should do this after all windows
3823 ;; have been created and sized).
3827 ;; Select window if it's the selected one.
3832 "Put window state STATE into WINDOW.
3833 STATE should be the state of a window returned by an earlier
3834 invocation of `window-state-get'. Optional argument WINDOW must
3835 specify a live window and defaults to the selected one.
3837 Optional argument IGNORE non-nil means ignore minimum window
3838 sizes and fixed size restrictions. IGNORE equal `safe' means
3839 windows can get as small as `window-safe-min-height' and
3840 `window-safe-min-width'."
3844 ;; We check here (1) whether the total sizes of root window of
3845 ;; STATE and that of WINDOW are equal so we can avoid
3846 ;; calculating new sizes, and (2) if we do have to resize
3847 ;; whether we can do so without violating size restrictions.
3872 (> min-width
3874 ;; The check above might not catch all errors due to rounding
3875 ;; issues - so IGNORE equal 'safe might not always produce the
3876 ;; minimum possible state. But such configurations hardly make
3877 ;; sense anyway.
3881 ;; Work on the windows of a temporary buffer to make sure that
3882 ;; splitting proceeds regardless of any buffer local values of
3883 ;; `window-size-fixed'. Release that buffer after the buffers of
3884 ;; all live windows have been set by `window--state-put-2'.
3890 \f
3892 "Record information for window used by `display-buffer'.
3893 TYPE specifies the type of the calling operation and must be one
3894 of the symbols 'reuse (when WINDOW existed already and was
3895 reused for displaying BUFFER), 'window (when WINDOW was created
3896 on an already existing frame), or 'frame (when WINDOW was
3897 created on a new frame). WINDOW is the window used for or created
3898 by the `display-buffer' routines. BUFFER is the buffer that
3899 shall be displayed.
3901 This function installs or updates the quit-restore parameter of
3902 WINDOW. The quit-restore parameter is a list of four elements:
3903 The first element is one of the symbols 'window, 'frame, 'same or
3904 'other. The second element is either one of the symbols 'window
3905 or 'frame or a list whose elements are the buffer previously
3906 shown in the window, that buffer's window start and window point,
3907 and the window's height. The third element is the window
3908 selected at the time the parameter was created. The fourth
3909 element is BUFFER."
3913 ;; WINDOW shows BUFFER already.
3915 ;; If WINDOW has a quit-restore parameter, reset its car.
3917 ;; WINDOW shows another buffer.
3919 window 'quit-restore
3921 ;; A quadruple of WINDOW's buffer, start, point and height.
3926 ;; WINDOW has been created on an existing frame.
3928 window 'quit-restore
3931 ;; WINDOW has been created on a new frame.
3933 window 'quit-restore
3937 "If non-nil, function to call to handle `display-buffer'.
3938 It will receive two args, the buffer and a flag which if non-nil
3939 means that the currently selected window is not acceptable. It
3940 should choose or create a window, display the specified buffer in
3941 it, and return the window.
3943 The specified function should call `display-buffer-record-window'
3944 with corresponding arguments to set up the quit-restore parameter
3945 of the window used."
3952 "Alist of parameters for automatically generated new frames.
3953 You can set this in your init file; for example,
3955 (setq pop-up-frame-alist '((width . 80) (height . 20)))
3957 If non-nil, the value you specify here is used by the default
3958 `pop-up-frame-function' for the creation of new frames.
3960 Since `pop-up-frame-function' is used by `display-buffer' for
3961 making new frames, any value specified here by default affects
3962 the automatic generation of new frames via `display-buffer' and
3963 all functions based on it. The behavior of `make-frame' is not
3964 affected by this variable."
3972 "Function used by `display-buffer' for creating a new frame.
3973 This function is called with no arguments and should return a new
3974 frame. The default value calls `make-frame' with the argument
3975 `pop-up-frame-alist'."
3980 "List of names of buffers that should be displayed specially.
3981 Displaying a buffer with `display-buffer' or `pop-to-buffer', if
3982 its name is in this list, displays the buffer in a way specified
3983 by `special-display-function'. `special-display-popup-frame'
3984 \(the default for `special-display-function') usually displays
3985 the buffer in a separate frame made with the parameters specified
3986 by `special-display-frame-alist'. If `special-display-function'
3987 has been set to some other function, that function is called with
3988 the buffer as first, and nil as second argument.
3990 Alternatively, an element of this list can be specified as
3991 \(BUFFER-NAME FRAME-PARAMETERS), where BUFFER-NAME is a buffer
3992 name and FRAME-PARAMETERS an alist of (PARAMETER . VALUE) pairs.
3993 `special-display-popup-frame' will interpret such pairs as frame
3994 parameters when it creates a special frame, overriding the
3995 corresponding values from `special-display-frame-alist'.
3997 As a special case, if FRAME-PARAMETERS contains (same-window . t)
3998 `special-display-popup-frame' displays that buffer in the
3999 selected window. If FRAME-PARAMETERS contains (same-frame . t),
4000 it displays that buffer in a window on the selected frame.
4002 If `special-display-function' specifies some other function than
4003 `special-display-popup-frame', that function is called with the
4004 buffer named BUFFER-NAME as first, and FRAME-PARAMETERS as second
4005 argument.
4007 Finally, an element of this list can be also specified as
4008 \(BUFFER-NAME FUNCTION OTHER-ARGS). In that case,
4009 `special-display-popup-frame' will call FUNCTION with the buffer
4010 named BUFFER-NAME as first argument, and OTHER-ARGS as the
4011 second.
4013 Any alternative function specified here is responsible for
4014 setting up the quit-restore parameter of the window used.
4017 name to it but the corresponding buffer is displayed in the
4018 selected window, look at the values of `same-window-buffer-names'
4019 and `same-window-regexps'. Those variables take precedence over
4020 this one.
4022 See also `special-display-regexps'."
4044 ;;;###autoload
4048 "List of regexps saying which buffers should be displayed specially.
4049 Displaying a buffer with `display-buffer' or `pop-to-buffer', if
4050 any regexp in this list matches its name, displays it specially
4051 using `special-display-function'. `special-display-popup-frame'
4052 \(the default for `special-display-function') usually displays
4053 the buffer in a separate frame made with the parameters specified
4054 by `special-display-frame-alist'. If `special-display-function'
4055 has been set to some other function, that function is called with
4056 the buffer as first, and nil as second argument.
4058 Alternatively, an element of this list can be specified as
4059 \(REGEXP FRAME-PARAMETERS), where REGEXP is a regexp as above and
4060 FRAME-PARAMETERS an alist of (PARAMETER . VALUE) pairs.
4061 `special-display-popup-frame' will then interpret these pairs as
4062 frame parameters when creating a special frame for a buffer whose
4063 name matches REGEXP, overriding the corresponding values from
4064 `special-display-frame-alist'.
4066 As a special case, if FRAME-PARAMETERS contains (same-window . t)
4067 `special-display-popup-frame' displays buffers matching REGEXP in
4068 the selected window. (same-frame . t) in FRAME-PARAMETERS means
4069 to display such buffers in a window on the selected frame.
4071 If `special-display-function' specifies some other function than
4072 `special-display-popup-frame', that function is called with the
4073 buffer whose name matched REGEXP as first, and FRAME-PARAMETERS
4074 as second argument.
4076 Finally, an element of this list can be also specified as
4077 \(REGEXP FUNCTION OTHER-ARGS). `special-display-popup-frame'
4078 will then call FUNCTION with the buffer whose name matched
4079 REGEXP as first, and OTHER-ARGS as second argument.
4081 Any alternative function specified here is responsible for
4082 setting up the quit-restore parameter of the window used.
4085 name to it but the corresponding buffer is displayed in the
4086 selected window, look at the values of `same-window-buffer-names'
4087 and `same-window-regexps'. Those variables take precedence over
4088 this one.
4090 See also `special-display-buffer-names'."
4113 "Return non-nil if a buffer named BUFFER-NAME gets a special frame.
4114 More precisely, return t if `special-display-buffer-names' or
4115 `special-display-regexps' contain a string entry equaling or
4116 matching BUFFER-NAME. If `special-display-buffer-names' or
4117 `special-display-regexps' contain a list entry whose car equals
4118 or matches BUFFER-NAME, the return value is the cdr of that
4119 entry."
4124 t)
4139 "Alist of parameters for special frames.
4140 Special frames are used for buffers whose names are listed in
4141 `special-display-buffer-names' and for buffers whose names match
4142 one of the regular expressions in `special-display-regexps'.
4144 This variable can be set in your init file, like this:
4146 (setq special-display-frame-alist '((width . 80) (height . 20)))
4148 These supersede the values given in `default-frame-alist'."
4155 "Display BUFFER and return the window chosen.
4156 If BUFFER is already displayed in a visible or iconified frame,
4157 raise that frame. Otherwise, display BUFFER in a new frame.
4159 Optional argument ARGS is a list specifying additional
4160 information.
4162 If ARGS is an alist, use it as a list of frame parameters. If
4163 these parameters contain (same-window . t), display BUFFER in
4164 the selected window. If they contain (same-frame . t), display
4165 BUFFER in a window of the selected frame.
4167 If ARGS is a list whose car is a symbol, use (car ARGS) as a
4168 function to do the work. Pass it BUFFER as first argument,
4169 and (cdr ARGS) as second."
4174 ;; If we have a window already, make it visible.
4180 window))
4181 ;; Reuse the current window if the user requested it.
4186 ;; Stay on the same frame if requested.
4189 pop-up-frames
4190 special-display-buffer-names special-display-regexps)
4192 ;; If no window yet, make one in a new frame.
4198 ;; FIXME: Use window--display-buffer-2?
4200 ;; Reset list of WINDOW's previous buffers to nil.
4203 window)))))
4206 "Function to call for displaying special buffers.
4207 This function is called with two arguments - the buffer and,
4208 optionally, a list - and should return a window displaying that
4209 buffer. The default value usually makes a separate frame for the
4210 buffer using `special-display-frame-alist' to specify the frame
4211 parameters. See the definition of `special-display-popup-frame'
4212 for how to specify such a function.
4214 A buffer is special when its name is either listed in
4215 `special-display-buffer-names' or matches a regexp in
4216 `special-display-regexps'.
4218 The specified function should call `display-buffer-record-window'
4219 with corresponding arguments to set up the quit-restore parameter
4220 of the window used."
4226 `display-buffer' and `pop-to-buffer' show a buffer whose name is
4227 on this list in the selected rather than some other window.
4229 An element of this list can be a cons cell instead of just a
4230 string. In that case, the cell's car must be a string specifying
4231 the buffer name. This is for compatibility with
4232 `special-display-buffer-names'; the cdr of the cons cell is
4233 ignored.
4235 See also `same-window-regexps'."
4241 `display-buffer' and `pop-to-buffer' show a buffer whose name
4242 matches a regexp on this list in the selected rather than some
4243 other window.
4245 An element of this list can be a cons cell instead of just a
4246 string. In that case, the cell's car must be a regexp matching
4247 the buffer name. This is for compatibility with
4248 `special-display-regexps'; the cdr of the cons cell is ignored.
4250 See also `same-window-buffer-names'."
4256 This function returns non-nil if `display-buffer' or
4257 `pop-to-buffer' would show a buffer named BUFFER-NAME in the
4258 selected rather than (as usual) some other window. See
4259 `same-window-buffer-names' and `same-window-regexps'."
4262 ;; The elements of `same-window-buffer-names' can be buffer
4263 ;; names or cons cells whose cars are buffer names.
4268 ;; The elements of `same-window-regexps' can be regexps
4269 ;; or cons cells whose cars are regexps.
4277 "Whether `display-buffer' should make a separate frame.
4278 If nil, never make a separate frame.
4279 If the value is `graphic-only', make a separate frame
4280 on graphic displays only.
4281 Any other non-nil value means always make a separate frame."
4289 "Non-nil means `display-buffer' should reuse frames.
4290 If the buffer in question is already displayed in a frame, raise
4291 that frame."
4297 "Non-nil means `display-buffer' should make a new window."
4302 "Function called by `display-buffer' routines to split a window.
4303 This function is called with a window as single argument and is
4304 supposed to split that window and return the new window. If the
4305 window can (or shall) not be split, it is supposed to return nil.
4306 The default is to call the function `split-window-sensibly' which
4307 tries to split the window in a way which seems most suitable.
4308 You can customize the options `split-height-threshold' and/or
4309 `split-width-threshold' in order to have `split-window-sensibly'
4310 prefer either vertical or horizontal splitting.
4312 If you set this to any other function, bear in mind that the
4313 `display-buffer' routines may call this function two times. The
4314 argument of the first call is the largest window on its frame.
4315 If that call fails to return a live window, the function is
4316 called again with the least recently used window as argument. If
4317 that call fails too, `display-buffer' will use an existing window
4318 to display its buffer.
4320 The window selected at the time `display-buffer' was invoked is
4321 still selected when this function is called. Hence you can
4322 compare the window argument with the value of `selected-window'
4323 if you intend to split the selected window instead or if you do
4324 not want to split the selected window."
4330 "Minimum height for splitting windows sensibly.
4331 If this is an integer, `split-window-sensibly' may split a window
4332 vertically only if it has at least this many lines. If this is
4333 nil, `split-window-sensibly' is not allowed to split a window
4334 vertically. If, however, a window is the only window on its
4335 frame, `split-window-sensibly' may split it vertically
4336 disregarding the value of this variable."
4342 "Minimum width for splitting windows sensibly.
4343 If this is an integer, `split-window-sensibly' may split a window
4344 horizontally only if it has at least this many columns. If this
4345 is nil, `split-window-sensibly' is not allowed to split a window
4346 horizontally."
4352 "Return non-nil if `split-window-sensibly' may split WINDOW.
4353 Optional argument HORIZONTAL nil or omitted means check whether
4354 `split-window-sensibly' may split WINDOW vertically. HORIZONTAL
4355 non-nil means check whether WINDOW may be split horizontally.
4357 WINDOW may be split vertically when the following conditions
4358 hold:
4359 - `window-size-fixed' is either nil or equals `width' for the
4360 buffer of WINDOW.
4361 - `split-height-threshold' is an integer and WINDOW is at least as
4362 high as `split-height-threshold'.
4363 - When WINDOW is split evenly, the emanating windows are at least
4364 `window-min-height' lines tall and can accommodate at least one
4365 line plus - if WINDOW has one - a mode line.
4367 WINDOW may be split horizontally when the following conditions
4368 hold:
4369 - `window-size-fixed' is either nil or equals `height' for the
4370 buffer of WINDOW.
4371 - `split-width-threshold' is an integer and WINDOW is at least as
4372 wide as `split-width-threshold'.
4373 - When WINDOW is split evenly, the emanating windows are at least
4374 `window-min-width' or two (whichever is larger) columns wide."
4378 ;; A window can be split horizontally when its width is not
4379 ;; fixed, it is at least `split-width-threshold' columns wide
4380 ;; and at least twice as wide as `window-min-width' and 2 (the
4381 ;; latter value is hardcoded).
4383 ;; Testing `window-full-width-p' here hardly makes any
4384 ;; sense nowadays. This can be done more intuitively by
4385 ;; setting up `split-width-threshold' appropriately.
4390 ;; A window can be split vertically when its height is not
4391 ;; fixed, it is at least `split-height-threshold' lines high,
4392 ;; and it is at least twice as high as `window-min-height' and 2
4393 ;; if it has a modeline or 1.
4402 "Split WINDOW in a way suitable for `display-buffer'.
4403 If `split-height-threshold' specifies an integer, WINDOW is at
4404 least `split-height-threshold' lines tall and can be split
4405 vertically, split WINDOW into two windows one above the other and
4406 return the lower window. Otherwise, if `split-width-threshold'
4407 specifies an integer, WINDOW is at least `split-width-threshold'
4408 columns wide and can be split horizontally, split WINDOW into two
4409 windows side by side and return the window on the right. If this
4410 can't be done either and WINDOW is the only window on its frame,
4411 try to split WINDOW vertically disregarding any value specified
4412 by `split-height-threshold'. If that succeeds, return the lower
4413 window. Return nil otherwise.
4415 By default `display-buffer' routines call this function to split
4416 the largest or least recently used window. To change the default
4417 customize the option `split-window-preferred-function'.
4419 You can enforce this function to not split WINDOW horizontally,
4420 by setting (or binding) the variable `split-width-threshold' to
4421 nil. If, in addition, you set `split-height-threshold' to zero,
4422 chances increase that this function does split WINDOW vertically.
4424 In order to not split WINDOW vertically, set (or bind) the
4425 variable `split-height-threshold' to nil. Additionally, you can
4426 set `split-width-threshold' to zero to make a horizontal split
4427 more likely to occur.
4429 Have a look at the function `window-splittable-p' if you want to
4430 know how `split-window-sensibly' determines whether WINDOW can be
4431 split."
4433 ;; Split window vertically.
4437 ;; Split window horizontally.
4442 ;; If WINDOW is the only window on its frame and is not the
4443 ;; minibuffer window, try to split it vertically disregarding
4444 ;; the value of `split-height-threshold'.
4451 "Try to split WINDOW.
4452 Return value returned by `split-window-preferred-function' if it
4453 represents a live window, nil otherwise."
4457 ;; Since `split-window-preferred-function' might
4458 ;; throw an error use `condition-case'.
4465 "Return FRAME if it can be used to display a buffer."
4468 ;; `frame-root-window' may be an internal window which is considered
4469 ;; "dead" by `window-live-p'. Hence if `window' is not live we
4470 ;; implicitly know that `frame' has a visible window we can use.
4473 ;; If the window is soft-dedicated, the frame is usable.
4474 ;; Actually, even if the window is really dedicated,
4475 ;; the frame is still usable by splitting it.
4476 ;; At least Emacs-22 allowed it, and it is desirable
4477 ;; when displaying same-frame windows.
4478 nil ; (eq t (window-dedicated-p window))
4479 ))
4480 frame))))
4483 "If non-nil `display-buffer' will try to even window heights.
4484 Otherwise `display-buffer' will leave the window configuration
4485 alone. Heights are evened only when `display-buffer' chooses a
4486 window that appears above or below the selected window."
4491 "Even heights of WINDOW and selected window.
4492 Do this only if these windows are vertically adjacent to each
4493 other, `even-window-heights' is non-nil, and the selected window
4494 is higher than WINDOW."
4497 ;; Don't resize minibuffer windows.
4508 ;; Don't throw an error if we can't even window heights for
4509 ;; whatever reason.
4515 "Raise the frame containing WINDOW.
4516 Do not raise the selected frame. Return WINDOW."
4520 ;; Assume the selected frame is already visible enough.
4522 ;; Assume the frame from which we invoked the minibuffer
4523 ;; is visible.
4527 window))
4530 "Display BUFFER in WINDOW and make its frame visible.
4531 Set `window-dedicated-p' to DEDICATED if non-nil.
4532 Return WINDOW."
4539 ;; FIXME: Not implemented.
4540 ;; FIXME: By the way, there could be more levels of dedication:
4541 ;; - `barely' dedicated doesn't prevent reuse of the window, only records that
4542 ;; the window hasn't been used for something else yet.
4543 ;; - `softly' dedicated only allows reuse when asked explicitly.
4544 ;; - `strongly' never allows reuse.
4546 "If non-nil, `display-buffer' marks the windows it creates as dedicated.
4547 The actual non-nil value of this variable will be copied to the
4564 ,display-buffer--action-function-custom-type
4569 :key-type symbol
4574 "Overriding action to perform to display a buffer.
4575 It should be a cons cell (FUNCTION . ALIST), where FUNCTION is a
4576 function or a list of functions. Each function should accept two
4577 arguments: a buffer to display and an alist similar to ALIST.
4582 "Alist of conditional actions for `display-buffer'.
4583 This is a list of elements (CONDITION . ACTION), where:
4585 CONDITION is either a regexp matching buffer names, or a function
4586 that takes a buffer and returns a boolean.
4588 ACTION is a cons cell (FUNCTION . ALIST), where FUNCTION is a
4589 function or a list of functions. Each such function should
4590 accept two arguments: a buffer to display and an alist of the
4591 same form as ALIST. See `display-buffer' for details."
4594 regexp
4597 :risky t
4602 "User-specified default action for `display-buffer'.
4603 It should be a cons cell (FUNCTION . ALIST), where FUNCTION is a
4604 function or a list of functions. Each function should accept two
4605 arguments: a buffer to display and an alist similar to ALIST.
4606 See `display-buffer' for details."
4607 :type display-buffer--action-custom-type
4608 :risky t
4614 display-buffer-reuse-window
4615 display-buffer--maybe-pop-up-frame-or-window
4616 display-buffer-use-some-window
4617 ;; If all else fails, pop up a new frame.
4618 display-buffer-pop-up-frame))
4619 "Default fallback action for `display-buffer'.
4620 This is the action used by `display-buffer' if no other actions
4621 specified, e.g. by the user options `display-buffer-alist' or
4626 "Retrieve ALIST entry corresponding to BUFFER-NAME."
4644 display-buffer-pop-up-frame)
4651 "Display BUFFER-OR-NAME in some window, without selecting it.
4652 BUFFER-OR-NAME must be a buffer or the name of an existing
4653 buffer. Return the window chosen for displaying BUFFER-OR-NAME,
4654 or nil if no such window is found.
4656 Optional argument ACTION should have the form (FUNCTION . ALIST).
4657 FUNCTION is either a function or a list of functions.
4658 ALIST is an arbitrary association list (alist).
4660 Each such FUNCTION should accept two arguments: the buffer to
4661 display and an alist. Based on those arguments, it should either
4662 display the buffer and return the window, or return nil if unable
4663 to display the buffer.
4665 The `display-buffer' function builds a function list and an alist
4666 by combining the functions and alists specified in
4667 `display-buffer-overriding-action', `display-buffer-alist', the
4668 ACTION argument, `display-buffer-base-action', and
4669 `display-buffer-fallback-action' (in order). Then it calls each
4670 function in the combined function list in turn, passing the
4671 buffer as the first argument and the combined alist as the second
4672 argument, until one of the functions returns non-nil.
4674 Available action functions include:
4675 `display-buffer-same-window'
4676 `display-buffer-reuse-window'
4677 `display-buffer-pop-up-frame'
4678 `display-buffer-pop-up-window'
4679 `display-buffer-use-some-window'
4681 Recognized alist entries include:
4683 `inhibit-same-window' -- A non-nil value prevents the same
4684 window from being used for display.
4686 `reusable-frames' -- Value specifies frame(s) to search for a
4687 window that already displays the buffer.
4688 See `display-buffer-reuse-window'.
4690 The ACTION argument to `display-buffer' can also have a non-nil
4691 and non-list value. This means to display the buffer in a window
4692 other than the selected one, even if it is already displayed in
4693 the selected window. If called interactively with a prefix
4694 argument, ACTION is t.
4696 Optional argument FRAME, if non-nil, acts like an additional
4697 ALIST entry (reusable-frames . FRAME), specifying the frame(s) to
4698 search for a window that is already displaying the buffer. See
4699 `display-buffer-reuse-window'."
4703 buffer-or-name
4705 ;; Handle the old form of the first argument.
4709 ;; If `display-buffer-function' is defined, let it do the job.
4711 ;; Otherwise, use the defined actions.
4714 display-buffer-alist))
4716 ;; Extra actions from the arguments to this function:
4722 ;; Construct action function list and action alist.
4724 user-action special-action action extra-action
4725 display-buffer-base-action
4726 display-buffer-fallback-action))
4731 actions)))
4733 window)
4739 window))))
4742 "Display buffer BUFFER in another frame.
4743 This uses the function `display-buffer' as a subroutine; see
4744 its documentation for additional customization information."
4748 ;;; `display-buffer' action functions:
4751 "Display BUFFER in the selected window.
4752 This fails if ALIST has a non-nil `inhibit-same-window' entry, or
4753 if the selected window is a minibuffer window or is dedicated to
4754 another buffer; in that case, return nil. Otherwise, return the
4755 selected window."
4763 "Conditionally display BUFFER in the selected window.
4764 If `same-window-p' returns non-nil for BUFFER's name, call
4765 `display-buffer-same-window' and return its value. Otherwise,
4766 return nil."
4771 "Return a window that is already displaying BUFFER.
4772 Return nil if no usable window is found.
4774 If ALIST has a non-nil `inhibit-same-window' entry, the selected
4775 window is not eligible for reuse.
4777 If ALIST contains a `reusable-frames' entry, its value determines
4778 which frames to search for a reusable window:
4779 nil -- the selected frame (actually the last non-minibuffer frame)
4780 A frame -- just that frame
4781 `visible' -- all visible frames
4782 0 -- all frames on the current terminal
4783 t -- all frames.
4785 If ALIST contains no `reusable-frames' entry, search just the
4786 selected frame if `display-buffer-reuse-frames' and
4787 `pop-up-frames' are both nil; search all frames on the current
4788 terminal if either of those variables is non-nil."
4793 pop-up-frames)
4802 frames))))))
4808 "Return special display action for BUFFER, if any.
4809 If `special-display-p' returns non-nil for BUFFER, return an
4810 appropriate display action involving `special-display-function'.
4811 See `display-buffer' for the format of display actions."
4813 ;; `special-display-p' returns either t or a list of frame
4814 ;; parameters to pass to `special-display-function'.
4823 "Display BUFFER in a new frame.
4824 This works by calling `pop-up-frame-function'. If successful,
4825 return the window used; otherwise return nil."
4827 frame window)
4833 ;; Reset list of WINDOW's previous buffers to nil.
4835 window)))
4838 "Display BUFFER by popping up a new window.
4839 The new window is created on the selected frame, or in
4840 `last-nonminibuffer-frame' if no windows can be created there.
4841 If successful, return the new window; otherwise return nil."
4844 window)
4846 ;; If the selected frame cannot be split, look at
4847 ;; `last-nonminibuffer-frame'.
4852 ;; Attempt to split largest or least recently used window.
4859 ;; Reset list of WINDOW's previous buffers to nil.
4861 window)))
4864 "Try displaying BUFFER based on `pop-up-frames' or `pop-up-windows'.
4866 If `pop-up-frames' is non-nil (and not `graphic-only' on a
4867 text-only terminal), try with `display-buffer-pop-up-frame'.
4869 If that cannot be done, and `pop-up-windows' is non-nil, try
4870 again with `display-buffer-pop-up-window'."
4873 pop-up-frames)
4879 "Display BUFFER in an existing window.
4880 Search for a usable window, set that window to the buffer, and
4881 return the window. If no suitable window is found, return nil."
4884 ;; When NOT-THIS-WINDOW is non-nil, temporarily dedicate the
4885 ;; selected window to its buffer, to prevent any of the
4886 ;; `get-' routines below from choosing it. (Bug#1415)
4892 window)
4895 ;; Reuse an existing window.
4900 window))
4905 window))
4908 ;; Restore dedicated status of selected window.
4915 ;;; Display + selection commands:
4918 "Select buffer BUFFER in some window, preferably a different one.
4919 BUFFER may be a buffer, a string (a buffer name), or nil. If it
4920 is a string not naming an existent buffer, create a buffer with
4921 that name. If BUFFER is nil, choose some other buffer. Return
4922 the buffer.
4924 This uses `display-buffer' as a subroutine. The optional ACTION
4925 argument is passed to `display-buffer' as its ACTION argument.
4926 See `display-buffer' for more information. ACTION is t if called
4927 interactively with a prefix argument, which means to pop to a
4928 window other than the selected one even if the buffer is already
4929 displayed in the selected window.
4931 If the window to show BUFFER is not on the selected
4932 frame, raise that window's frame and give it input focus.
4934 Optional third arg NORECORD non-nil means do not put this buffer
4935 at the front of the list of recently selected ones."
4943 ;; If we chose another frame, make sure it gets input focus.
4946 ;; Make sure new window is selected (Bug#8615), (Bug#6954).
4948 buffer))
4951 "Select buffer BUFFER in some window, preferably the same one.
4952 This function behaves much like `switch-to-buffer', except it
4953 displays with `special-display-function' if BUFFER has a match in
4954 `special-display-buffer-names' or `special-display-regexps'.
4956 Unlike `pop-to-buffer', this function prefers using the selected
4957 window over popping up a new window or frame.
4959 BUFFER may be a buffer, a string (a buffer name), or nil. If it
4960 is a string not naming an existent buffer, create a buffer with
4961 that name. If BUFFER is nil, choose some other buffer. Return
4962 the buffer.
4964 NORECORD, if non-nil means do not put this buffer at the front of
4965 the list of recently selected ones."
4969 "Read the name of a buffer to switch to, prompting with PROMPT.
4970 Return the name of the buffer as a string.
4972 This function is intended for the `switch-to-buffer' family of
4973 commands since these need to omit the name of the current buffer
4974 from the list of completions and default values."
4979 ;; Since rbts-completion-table is built dynamically, we
4980 ;; can't just add it to the default value of
4981 ;; icomplete-with-completion-tables, so we add it
4982 ;; here manually.
4987 icomplete-with-completion-tables))))
4992 "Normalize BUFFER-OR-NAME argument of buffer switching functions.
4993 If BUFFER-OR-NAME is nil, return the buffer returned by
4994 `other-buffer'. Else, if a buffer specified by BUFFER-OR-NAME
4995 exists, return that buffer. If no such buffer exists, create a
4996 buffer with the name BUFFER-OR-NAME and return that buffer."
5001 buffer))
5005 "Switch to buffer BUFFER-OR-NAME in the selected window.
5006 If called interactively, prompt for the buffer name using the
5007 minibuffer. The variable `confirm-nonexistent-file-or-buffer'
5008 determines whether to request confirmation before creating a new
5009 buffer.
5011 BUFFER-OR-NAME may be a buffer, a string (a buffer name), or
5012 nil. If BUFFER-OR-NAME is a string that does not identify an
5013 existing buffer, create a buffer with that name. If
5014 BUFFER-OR-NAME is nil, switch to the buffer returned by
5015 `other-buffer'.
5017 Optional argument NORECORD non-nil means do not put the buffer
5018 specified by BUFFER-OR-NAME at the front of the buffer list and
5019 do not make the window displaying it the most recently selected
5020 one.
5022 If FORCE-SAME-WINDOW is non-nil, BUFFER-OR-NAME must be displayed
5023 in the selected window; signal an error if that is
5024 impossible (e.g. if the selected window is minibuffer-only). If
5025 nil, BUFFER-OR-NAME may be displayed in another window.
5027 Return the buffer switched to."
5032 ;; Don't call set-window-buffer if it's not needed since it
5033 ;; might signal an error (e.g. if the window is dedicated).
5050 "Select the buffer specified by BUFFER-OR-NAME in another window.
5051 BUFFER-OR-NAME may be a buffer, a string (a buffer name), or
5052 nil. Return the buffer switched to.
5054 If called interactively, prompt for the buffer name using the
5055 minibuffer. The variable `confirm-nonexistent-file-or-buffer'
5056 determines whether to request confirmation before creating a new
5057 buffer.
5059 If BUFFER-OR-NAME is a string and does not identify an existing
5060 buffer, create a new buffer with that name. If BUFFER-OR-NAME is
5061 nil, switch to the buffer returned by `other-buffer'.
5063 Optional second argument NORECORD non-nil means do not put this
5064 buffer at the front of the list of recently selected ones.
5066 This uses the function `display-buffer' as a subroutine; see its
5067 documentation for additional customization information."
5074 "Switch to buffer BUFFER-OR-NAME in another frame.
5075 BUFFER-OR-NAME may be a buffer, a string (a buffer name), or
5076 nil. Return the buffer switched to.
5078 If called interactively, prompt for the buffer name using the
5079 minibuffer. The variable `confirm-nonexistent-file-or-buffer'
5080 determines whether to request confirmation before creating a new
5081 buffer.
5083 If BUFFER-OR-NAME is a string and does not identify an existing
5084 buffer, create a new buffer with that name. If BUFFER-OR-NAME is
5085 nil, switch to the buffer returned by `other-buffer'.
5087 Optional second arg NORECORD non-nil means do not put this
5088 buffer at the front of the list of recently selected ones.
5090 This uses the function `display-buffer' as a subroutine; see its
5091 documentation for additional customization information."
5095 \f
5097 "Set the height in lines of the text display area of WINDOW to HEIGHT.
5098 WINDOW must be a live window. HEIGHT doesn't include the mode
5099 line or header line, if any, or any partial-height lines in the
5100 text display area.
5102 Note that the current implementation of this function cannot
5103 always set the height exactly, but attempts to be conservative,
5104 by allocating more lines than are actually needed in the case
5105 where some error may be present."
5109 ;; Setting window-min-height to a value like 1 can lead to very
5110 ;; bizarre displays because it also allows Emacs to make *other*
5111 ;; windows 1-line tall, which means that there's no more space for
5112 ;; the modeline.
5117 "Make selected window DELTA columns wider.
5118 Interactively, if no argument is given, make selected window one
5119 column wider."
5124 "Make selected window DELTA columns narrower.
5125 Interactively, if no argument is given, make selected window one
5126 column narrower."
5131 "Return the number of screen lines in the region.
5132 The number of screen lines may be different from the number of actual lines,
5133 due to line breaking, display table, etc.
5135 Optional arguments BEG and END default to `point-min' and `point-max'
5136 respectively.
5138 If region ends with a newline, ignore it unless optional third argument
5139 COUNT-FINAL-NEWLINE is non-nil.
5141 The optional fourth argument WINDOW specifies the window used for obtaining
5142 parameters such as width, horizontal scrolling, and so on. The default is
5143 to use the selected window's parameters.
5145 Like `vertical-motion', `count-screen-lines' always uses the current buffer,
5146 regardless of which buffer is displayed in WINDOW. This makes possible to use
5147 `count-screen-lines' in any buffer, whether or not it is currently displayed
5148 in some window."
5154 0
5167 "Return the height (in screen lines) of the buffer that WINDOW is displaying."
5171 ;; If buffer ends with a newline, ignore it when
5172 ;; counting height unless point is after it.
5174 window))))
5176 ;;; Resizing buffers to fit their contents exactly.
5178 "Adjust height of WINDOW to display its buffer's contents exactly.
5179 WINDOW can be any live window and defaults to the selected one.
5181 Optional argument MAX-HEIGHT specifies the maximum height of
5182 WINDOW and defaults to the height of WINDOW's frame. Optional
5183 argument MIN-HEIGHT specifies the minimum height of WINDOW and
5184 defaults to `window-min-height'. Both MAX-HEIGHT and MIN-HEIGHT
5185 are specified in lines and include the mode line and header line,
5186 if any.
5188 Optional argument OVERRIDE non-nil means override restrictions
5189 imposed by `window-min-height' and `window-min-width' on the size
5190 of WINDOW.
5192 Return the number of lines by which WINDOW was enlarged or
5193 shrunk. If an error occurs during resizing, return nil but don't
5194 signal an error.
5196 Note that even if this function makes WINDOW large enough to show
5197 _all_ lines of its buffer you might not see the first lines when
5198 WINDOW was scrolled."
5200 ;; Do all the work in WINDOW and its buffer and restore the selected
5201 ;; window and the current buffer when we're done.
5203 ;; Can't resize a full height or fixed-size window.
5206 ;; `with-selected-window' should orderly restore the current buffer.
5208 ;; We are in WINDOW's buffer now.
5214 window-safe-min-height)))
5217 ;; Adjust MAX-HEIGHT.
5220 max-window-height
5222 ;; Make `desired-height' the height necessary to show
5223 ;; all of WINDOW's buffer, constrained by MIN-HEIGHT
5224 ;; and MAX-HEIGHT.
5229 ;; For non-minibuffers count the mode line, if any.
5231 mode-line-format)
5232 1
5234 ;; Count the header line, if any.
5236 max-height)
5237 min-height))
5246 ;; This `condition-case' shouldn't be necessary, but who knows?
5249 ;; Return zero if DELTA became zero in the process.
5250 0
5251 ;; Don't try to redisplay with the cursor at the end on its
5252 ;; own line--that would force a scroll and spoil things.
5254 ;; It's silly to put `point' at the end of the previous
5255 ;; line and so maybe force horizontal scrolling.
5257 ;; Call `window-resize' with OVERRIDE argument equal WINDOW.
5259 ;; Check if the last line is surely fully visible. If
5260 ;; not, enlarge the window.
5264 ;; Don't include final newline.
5267 ;; If line-wrapping is turned off, test the
5268 ;; beginning of the last line for
5269 ;; visibility instead of the end, as the
5270 ;; end of the line could be invisible by
5271 ;; virtue of extending past the edge of the
5272 ;; window.
5276 ;; This loop might in some rare pathological cases raise
5277 ;; an error - another reason for the `condition-case'.
5284 delta))))
5287 "Return t if WINDOW can be shrunk without shrinking other windows.
5288 WINDOW defaults to the selected window."
5295 "Shrink height of WINDOW if its buffer doesn't need so many lines.
5296 More precisely, shrink WINDOW vertically to be as small as
5297 possible, while still showing the full contents of its buffer.
5298 WINDOW defaults to the selected window.
5300 Do not shrink WINDOW to less than `window-min-height' lines. Do
5301 nothing if the buffer contains more lines than the present window
5302 height, or if some of the window's contents are scrolled out of
5303 view, or if shrinking this window would also shrink another
5304 window, or if the window is the only window of its frame.
5306 Return non-nil if the window was shrunk, nil otherwise."
5309 ;; Make sure that WINDOW is vertically combined and `point-min' is
5310 ;; visible (for whatever reason that's needed). The remaining issues
5311 ;; should be taken care of by `fit-window-to-buffer'.
5315 \f
5317 "Kill the current buffer and delete the selected window."
5326 ;; If `delete-window' failed before, we rerun it to regenerate
5327 ;; the error so it can be seen in the echo area.
5330 ;; If the buffer is not dead for some reason (probably because
5331 ;; of a `quit' signal), remove the hook again.
5336 \f
5338 "Indicates the last recenter operation performed.
5342 "Cycling order for `recenter-top-bottom'.
5343 A list of elements with possible values `top', `middle', `bottom',
5344 integer or float numbers that define the cycling order for
5345 the command `recenter-top-bottom'.
5347 Top and bottom destinations are `scroll-margin' lines from the true
5348 window top and bottom. Middle redraws the frame and centers point
5349 vertically within the window. Integer number moves current line to
5350 the specified absolute window-line. Float number between 0.0 and 1.0
5351 means the percentage of the screen space from the top. The default
5352 cycling order is middle -> top -> bottom."
5363 "Move current buffer line to the specified window line.
5364 With no prefix argument, successive calls place point according
5365 to the cycling order defined by `recenter-positions'.
5367 A prefix argument is handled like `recenter':
5368 With numeric prefix ARG, move current line to window-line ARG.
5369 With plain `C-u', move current line to window center."
5377 recenter-positions))
5396 "Position point relative to window.
5398 With a prefix argument ARG, acts like `move-to-window-line'.
5400 With no argument, positions point at center of window.
5401 Successive calls position point at positions defined
5402 by `recenter-positions'."
5410 recenter-positions))
5427 \f
5428 ;;; Scrolling commands.
5430 ;;; Scrolling commands which do not signal errors at top/bottom
5431 ;;; of buffer at first key-press (instead move to top/bottom
5432 ;;; of buffer).
5435 "Move point to top/bottom of buffer before signaling a scrolling error.
5436 A value of nil means just signal an error if no more scrolling possible.
5437 A value of t means point moves to the beginning or the end of the buffer
5438 \(depending on scrolling direction) when no more scrolling possible.
5439 When point is already on that position, then signal an error."
5445 "Scroll text of selected window upward ARG lines; or near full screen if no ARG.
5446 If `scroll-error-top-bottom' is non-nil and `scroll-up' cannot
5447 scroll window further, move cursor to the bottom line.
5448 When point is already on that position, then signal an error.
5449 A near full screen is `next-screen-context-lines' less than a full screen.
5450 Negative ARG means scroll downward.
5451 If ARG is the atom `-', scroll downward by nearly full screen."
5467 ;; When scrolling by ARG lines can't be done,
5468 ;; move by ARG lines instead.
5470 ;; When ARG is nil for full-screen scrolling,
5471 ;; move to the bottom of the buffer.
5477 "Scroll text of selected window down ARG lines; or near full screen if no ARG.
5478 If `scroll-error-top-bottom' is non-nil and `scroll-down' cannot
5479 scroll window further, move cursor to the top line.
5480 When point is already on that position, then signal an error.
5481 A near full screen is `next-screen-context-lines' less than a full screen.
5482 Negative ARG means scroll upward.
5483 If ARG is the atom `-', scroll upward by nearly full screen."
5499 ;; When scrolling by ARG lines can't be done,
5500 ;; move by ARG lines instead.
5502 ;; When ARG is nil for full-screen scrolling,
5503 ;; move to the top of the buffer.
5508 ;;; Scrolling commands which scroll a line instead of full screen.
5511 "Scroll text of selected window upward ARG lines; or one line if no ARG.
5512 If ARG is omitted or nil, scroll upward by one line.
5513 This is different from `scroll-up-command' that scrolls a full screen."
5520 "Scroll text of selected window down ARG lines; or one line if no ARG.
5521 If ARG is omitted or nil, scroll down by one line.
5522 This is different from `scroll-down-command' that scrolls a full screen."
5528 \f
5531 For more details, see the documentation for `scroll-other-window'."
5534 ;; Just invert the argument's meaning.
5535 ;; We can do that without knowing which window it will be.
5541 "Move point to the beginning of the buffer in the other window.
5542 Leave mark at previous position.
5543 With arg N, put point N/10 of the way from the true beginning."
5547 ;; We use unwind-protect rather than save-window-excursion
5548 ;; because the latter would preserve the things we want to change.
5552 ;; Set point and mark in that window's buffer.
5555 ;; Set point accordingly.
5560 "Move point to the end of the buffer in the other window.
5561 Leave mark at previous position.
5562 With arg N, put point N/10 of the way from the true end."
5564 ;; See beginning-of-buffer-other-window for comments.
5574 \f
5585 "When non-nil, special state of delayed window autoselection.
5586 Possible values are `suspend' (suspend autoselection after a menu or
5587 scrollbar interaction) and `select' (the next invocation of
5591 "Cancel delayed window autoselection.
5592 Optional argument FORCE means cancel unconditionally."
5594 ;; Don't cancel for select-window or select-frame events
5595 ;; or when the user drags a scroll bar.
5607 "Start delayed window autoselection.
5608 MOUSE-POSITION is the last position where the mouse was seen as returned
5609 by `mouse-position'. Optional argument WINDOW non-nil denotes the
5610 window where the mouse was seen. Optional argument SUSPEND non-nil
5611 means suspend autoselection."
5612 ;; Record values for MOUSE-POSITION, WINDOW, and SUSPEND.
5616 ;; Install timer which runs `mouse-autoselect-window-select' after
5617 ;; `mouse-autoselect-window' seconds.
5623 "Select window with delayed window autoselection.
5624 If the mouse position has stabilized in a non-selected window, select
5625 that window. The minibuffer window is selected only if the minibuffer
5626 is active. This function is run by `mouse-autoselect-window-timer'."
5637 ;; A menu / popup dialog is active or the mouse is on the scroll-bar
5638 ;; of WINDOW, temporarily suspend delayed autoselection.
5641 ;; Delayed autoselection was temporarily suspended, reenable it.
5646 ;; If `mouse-autoselect-window' is positive, select
5647 ;; window if the window is the same as before.
5649 ;; Otherwise select window if the mouse is at the same
5650 ;; position as before. Observe that the first test after
5651 ;; starting autoselection usually fails since the value of
5652 ;; `mouse-autoselect-window-position' recorded there is the
5653 ;; position where the mouse has entered the new window and
5654 ;; not necessarily where the mouse has stopped moving.
5656 ;; The minibuffer is a candidate window if it's active.
5659 ;; Mouse position has stabilized in non-selected window: Cancel
5660 ;; delayed autoselection and try to select that window.
5662 ;; Select window where mouse appears unless the selected window is the
5663 ;; minibuffer. Use `unread-command-events' in order to execute pre-
5664 ;; and post-command hooks and trigger idle timers. To avoid delaying
5665 ;; autoselection again, set `mouse-autoselect-window-state'."
5670 unread-command-events))))
5674 ;; Mouse position has either stabilized in the selected window or at
5675 ;; `mouse-autoselect-window-position': Cancel delayed autoselection.
5678 ;; Mouse position has not stabilized yet, resume delayed
5679 ;; autoselection.
5683 "Handle select-window events."
5687 ;; Don't switch if we're currently in the minibuffer.
5688 ;; This tries to work around problems where the
5689 ;; minibuffer gets unselected unexpectedly, and where
5690 ;; you then have to move your mouse all the way down to
5691 ;; the minibuffer to select it.
5693 ;; Don't switch to minibuffer window unless it's active.
5696 ;; Don't switch when autoselection shall be delayed.
5701 ;; Cancel any delayed autoselection.
5703 ;; Start delayed autoselection from current mouse
5704 ;; position and window.
5706 ;; Executing a command cancels delayed autoselection.
5710 ;; Reset state of delayed autoselection.
5712 ;; Run `mouse-leave-buffer-hook' when autoselecting window.
5717 "Return non-nil if lines in WINDOW are specifically truncated due to its width.
5718 WINDOW defaults to the selected window.
5719 Return nil if WINDOW is not a partial-width window
5720 (regardless of the value of `truncate-lines').
5721 Otherwise, consult the value of `truncate-partial-width-windows'
5722 for the buffer shown in WINDOW."
5730 t-p-w-w))))
5731 \f
5732 ;; Some of these are in tutorial--default-keys, so update that if you
5733 ;; change these.
5746 ;;; window.el ends here