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* Change the default value of 'split-width-threshold' from 160 to 150Juri Linkov2026-02-161-5/+6
| | | | | | | * lisp/window.el (split-width-threshold): Change the default value from 160 to 150 (bug#80050). (split-window-preferred-function): Mention 'split-window-preferred-direction' in the docstring.
* ; * lisp/window.el (window--frame-landscape-p): Tweak wording.Sean Whitton2026-02-051-1/+1
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* ; * lisp/window.el (window--frame-landscape-p): Improve docstring.Sean Whitton2026-01-291-2/+3
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* Use frame-pixel-width/height to determine if frame is landscapeSpencer Baugh2026-01-291-1/+11
| | | | | * lisp/window.el (window--frame-landscape-p): New function. (split-window-sensibly): Call it (bug#80053).
* Support cons cell for 'line-spacing'Daniel Mendler2026-01-241-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * etc/NEWS: Announce the change. * src/dispextern.h (struct glyph_row): Add 'extra_line_spacing_above' member. (struct it): Add 'extra_line_spacing_above' member. * src/frame.h (struct frame): Add 'extra_line_spacing_above' member. Update comment for 'extra_line_spacing.' * src/buffer.c (syms_of_buffer): Update the docstring of 'line-spacing' to describe the cons cell usage. * src/buffer.h (struct buffer): Update comment for 'extra_line_spacing'. * src/frame.c (gui_set_line_spacing): Handle cons cell value for 'line-spacing'. Calculate and set 'extra_line_spacing_above' for both integer and float pairs. * src/xdisp.c (init_iterator): Initialize 'extra_line_spacing_above' from buffer or frame 'line-spacing', handling cons cells for both integer and float values. (gui_produce_glyphs): Use 'extra_line_spacing_above' to distribute spacing between ascent and descent. Update 'max_extra_line_spacing' calculation. (resize_mini_window): Take line spacing into account when resizing the mini window. Pass height of a single line to 'grow_mini_window' and 'shrink_mini_window'. * src/window.c (grow_mini_window, shrink_mini_window): Add unit argument which defines height of a single line. * src/window.h (grow_mini_window, shrink_mini_window): Adjust function prototypes accordingly with unit argument. * lisp/subr.el (total-line-spacing): New function to calculate total spacing from a number or cons cell. (posn-col-row): Use total-line-spacing. * lisp/simple.el (default-line-height): Use 'total-line-spacing'. * lisp/textmodes/picture.el (picture-mouse-set-point): Use 'total-line-spacing'. * lisp/window.el (window-default-line-height): Use 'total-line-spacing'. (window--resize-mini-window): Take 'line-spacing' into account. * test/lisp/subr-tests.el (total-line-spacing): New test. * test/src/buffer-tests.el (test-line-spacing): New test. * doc/emacs/display.texi (Display Custom): Document that 'line-spacing' can be a cons cell. (Line Height): Document the new cons cell format for 'line-spacing' to allow vertical centering. Co-authored-by: Przemysław Alexander Kamiński <alexander@kaminski.se> Co-authored-by: Daniel Mendler <mail@daniel-mendler.de>
* Fix thinko in 'quit-restore-window'Martin Rudalics2026-01-211-2/+7
| | | | | | | | | * lisp/window.el (quit-restore-window): Try to restore the previously selected window only if WINDOW is either the selected window or BURY-OR-KILL is neither 'burying' nor 'killing'. Otherwise, this might deliberately change the selected window, for example, when 'kill-buffer-quit-windows' is non-nil and WINDOW shows the buffer to kill.
* ; * lisp/window.el (display-buffer): Fix quotation.Eli Zaretskii2026-01-031-3/+3
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* Document more display actions in `display-buffer' (bug#80092)Phil Sainty2026-01-031-23/+34
| | | | | | | | | | | | | | | | | | | | * lisp/window.el (display-buffer): Add docs for several missing actions: - display-buffer-in-atom-window - display-buffer-in-direction - display-buffer-in-side-window - display-buffer-reuse-mode-window - display-buffer-use-some-frame Re-arrange the actions into a less-arbitrary sequence. Re-word some descriptions to use a more consistent phrasing. Re-wrap some lines (based on the longest pre-existing line), to reduce the line count. Un-link the `pop-up-frames' symbol in the alist entry listing. (display-buffer--action-function-custom-type): Add missing actions, and re-order as above. (display-buffer-reuse-mode-window): Tweak the docstring for better consistency with other display actions.
* Improve documentation for tab-bar buffer display actions (bug#80092)Phil Sainty2026-01-031-0/+8
| | | | | | | | | | | | | | | | | * doc/lispref/windows.texi: Document the display actions `display-buffer-in-tab' and `display-buffer-in-new-tab' and the associated alist entries `tab-name' and `tab-group'. * lisp/tab-bar.el (display-buffer-in-tab): Restructure docstring for clarity. Describe the `reusable-frames' behaviour first (as if it finds a frame with a suitable tab then the `tab-name' entry is not used). (display-buffer-in-new-tab): Use consistent wording. * lisp/window.el (display-buffer--action-function-custom-type): Add the display actions as customize choices for user options. (display-buffer): Document the display actions and alist entries.
* ; Add 2026 to copyright years.Sean Whitton2026-01-011-1/+1
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* Merge from origin/emacs-30Eli Zaretskii2025-12-061-5/+44
|\ | | | | | | | | | | | | | | 998d45d5d10 ; * lisp/calc/calc-units.el: Better reference for CODATA ... fae83f1eb8b ; Improve documentation of 'char-script-table' 3e489ed8049 ; * src/font.c (Flist_fonts): Doc fix. 4c292b6f703 ; vc-dir-clean-files: Improve docstring and message (bug#... 8a6b84dbcbc Fix doc string of 'display-buffer'
| * Fix doc string of 'display-buffer'Eli Zaretskii2025-11-301-5/+44
| | | | | | | | | | | | * lisp/window.el (display-buffer): Add missing actions and fix quoting to avoid showing hyper-links to non-existent or irrelevant symbols. (Bug#79912)
* | (display-buffer-overriding-action): Try and discourage abuseStefan Monnier2025-11-271-2/+7
| | | | | | | | | | * lisp/window.el (display-buffer-overriding-action): Document the intended use in the deluded hope to reduce the current abuse.
* | Default split-window-preferred-direction to 'longest'Sean Whitton2025-11-221-11/+12
| | | | | | | | | | * lisp/window.el (split-window-preferred-direction): Change default value to 'longest'.
* | ; Improve documentation of 'clone-of' window parameterMartin Rudalics2025-11-161-8/+12
| | | | | | | | | | | | | | * lisp/window.el (window-state-get, window-state-put): Mention 'clone-of' parameter in doc-strings. * doc/lispref/windows.texi (Window Configurations, Window Parameters): Improve description of 'clone-of' parameter.
* | Merge from origin/emacs-30Eli Zaretskii2025-10-181-1/+4
|\ \ | |/ | | | | 53aac6aecd2 ; Improve documentation of commands that split current wi...
| * ; Improve documentation of commands that split current windowEli Zaretskii2025-10-181-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * doc/emacs/sending.texi (Sending Mail): * doc/emacs/dired.texi (Dired Enter, Dired Visiting): * doc/emacs/maintaining.texi (Old Revisions) (Change Log Commands, Looking Up Identifiers): * doc/emacs/windows.texi (Displaying Buffers): * doc/emacs/files.texi (Visiting): Add cross-references to where user options are described which control how windows are split. * lisp/mail/sendmail.el (mail-other-window): * lisp/gnus/message.el (message-mail-other-window) (message-news-other-window): * lisp/replace.el (occur-mode-goto-occurrence-other-window): * lisp/vc/vc.el (vc-revision-other-window): * lisp/vc/vc-dir.el (vc-dir-find-file-other-window): * lisp/progmodes/xref.el (xref-find-definitions-other-window): * lisp/simple.el (compose-mail-other-window) (clone-indirect-buffer-other-window): * lisp/vc/add-log.el (add-change-log-entry-other-window): * lisp/view.el (view-file-other-window) (view-buffer-other-window): * lisp/window.el (switch-to-buffer-other-window): * lisp/files.el (find-file-other-window) (find-file-read-only-other-window) (find-alternate-file-other-window): * lisp/dired.el (dired-other-window) (dired-mouse-find-file-other-window) (dired-find-file-other-window, dired-jump-other-window): Mention in the doc strings how to control the way the current window is split.
* | * lisp/window.el (display-buffer-alist): Fix :key-type (bug#79496).Eli Zaretskii2025-09-241-5/+2
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* | Add 'other-window-backward' for a default binding (bug#78803)James Thomas2025-08-021-4/+10
| | | | | | | | | | | | | | | | | | | | This moves in the opposite direction to 'other-window' by default, and is consistent with its repeat map. * lisp/window.el (other-window-backward): New function bound to 'C-x O'. (ctl-x-map): Update definition. * doc/emacs/windows.texi (Other Window): Update docs. * etc/NEWS: Annouce the new command.
* | * lisp/window.el (window--quit-restore-select-window): Use 'select-frame'.Juri Linkov2025-07-271-1/+1
| | | | | | | | | | Replace 'select-frame-set-input-focus' with the less obtrusive 'select-frame' (bug#79098).
* | Merge from origin/emacs-30Eli Zaretskii2025-07-261-1/+2
|\ \ | |/ | | | | | | | | | | | | | | | | a44e9139c2f loaddefs-generate--rubric: Note about committing ldefs-bo... e4908623f23 ; Fix documentation of 'other-window' 5f3cbd62b1c ; * lisp/international/quail.el (quail-insert-kbd-layout)... 47deb38f214 ; face-font-family-alternatives, fixed-pitch: Comments. dd29b0ab66d Fix Eshell call to 'string-suffix-p' when checking for tr... cbfc095ed42 * etc/PROBLEMS: Describe how to work around screen reader... 8f00d36b63d (gnus)Scoring Tips: New tip regarding header continuation...
| * ; Fix documentation of 'other-window'Eli Zaretskii2025-07-261-1/+2
| | | | | | | | | | | | * doc/lispref/windows.texi (Cyclic Window Ordering): * lisp/window.el (other-window): Document ALL-FRAMES in interactive invocations.
* | Improve documentation of 'quit-window'Eli Zaretskii2025-07-211-10/+13
| | | | | | | | | | | | | | | | * lisp/window.el (quit-window): Mention 'quit-window-kill-buffer'. (quit-window): Doc fix. * doc/lispref/windows.texi (Quitting Windows): * etc/NEWS: Improve documentation of 'quit-window-kill-buffer'.
* | Merge from origin/emacs-30Sean Whitton2025-07-161-1/+1
|\ \ | |/ | | | | | | | | 24db9b79623 ; * lisp/vc/diff-mode.el (diff-mode): Scare-quote 'normal'. 756e7e52439 ; * lisp/window.el (window-state-put): Fix a typo (bug#79... 0fb20adf8e7 ; define-globalized-minor-mode: Fix info node link in doc...
| * ; * lisp/window.el (window-state-put): Fix a typo (bug#79013).Eli Zaretskii2025-07-141-1/+1
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| * Update copyright year to 2025Stefan Kangas2025-01-021-1/+1
| | | | | | | | Run "TZ=UTC0 admin/update-copyright".
* | Handle multiple mouse events in display-buffer-override-next-commandJuri Linkov2025-07-091-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | * lisp/window.el (display-buffer-override-next-command): Use 'mouse-event-p' to wait for more following mouse events. * lisp/frame.el (other-frame-prefix): * lisp/tab-bar.el (other-tab-prefix): * lisp/windmove.el (windmove-display-in-direction): * lisp/window.el (other-window-prefix, same-window-prefix): Update the docstring to explain the behavior in regard to multiple consecutive mouse events (bug#78945).
* | Don't ignore mouse release event in display-buffer-override-next-commandJuri Linkov2025-07-031-6/+9
| | | | | | | | | | | | * lisp/window.el (display-buffer-override-next-command): Don't exit on mouse down event, thus waiting for the incoming mouse up event (bug#78945).
* | Have 'split-window' forget previous window height (Bug#78835)Martin Rudalics2025-06-201-0/+10
| | | | | | | | | | | | | | * lisp/window.el (split-window): When WINDOW has a 'quit-restore' parameter that specifies a previous height to restore, remove that when splitting vertically. It does more harm than good now (Bug#78835).
* | Fix thinko in 'fit-frame-to-buffer-1' (Bug#78418)Martin Rudalics2025-05-191-8/+8
| | | | | | | | | | | | * lisp/window.el (fit-frame-to-buffer-1): Don't add extra line when character sizes evenly divide decorations sizes (Bug#78418).
* | Move documentation of this-command buffer display condition entrySean Whitton2025-05-021-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | * doc/lispref/buffers.texi (Buffer List): Document this-command buffer display condition entry. * doc/lispref/windows.texi (Choosing Window): Give an example of using this-command buffer display condition entry in display-buffer-alist. (Buffer Display Action Alists): * lisp/window.el (display-buffer): Delete documentation of this-command buffer display condition entry from these locations because it is not a buffer display action alist entry. * lisp/subr.el (buffer-match-p): Update cross reference.
* | ; Fix wording of recently added documentationEli Zaretskii2025-05-011-2/+2
| | | | | | | | | | * lisp/window.el (display-buffer): * doc/lispref/windows.texi (Buffer Display Action Alists): Fix wording.
* | New this-command buffer display action alist entrySean Whitton2025-05-011-0/+5
| | | | | | | | | | | | | | | | | | * lisp/subr.el (buffer-match-p): New this-command cons cell condition to implement new this-command buffer display action alist entry (bug#78082). * lisp/window.el (display-buffer): * doc/lispref/windows.texi (Buffer Display Action Alists): * etc/NEWS: Document the new buffer display action alist entry.
* | Bind new window layout commands under C-x wSean Whitton2025-04-181-1/+34
| | | | | | | | | | | | | | | | * lisp/window.el (rotate-windows-repeat-map) (window-layout-rotate-repeat-map, window-layout-flip-repeat-map): New keymaps. (window-prefix-map): Bind new window layout commands. * etc/NEWS: Rewrite entry for the new commands.
* | Don't switch to another frame if window is not on the selected frame.Juri Linkov2025-04-171-5/+12
| | | | | | | | | | | | | | | | | | | | | | | | * lisp/window.el (window--quit-restore-select-window): Add optional arg 'frame'. Don't switch to another frame if window is not on the selected frame (bug#71386). (quit-restore-window): Provide the 'frame' arg to 'window--quit-restore-select-window' calls. Patch by martin rudalics <rudalics@gmx.at>. * test/lisp/tab-bar-tests.el (tab-bar-tests-quit-restore-window): No need to reselect the frame after 'quit-window'.
* | * lisp/window.el (window-deletable-p): Improve tab handling.Juri Linkov2025-04-031-9/+11
| | | | | | | | | | | | Use frame parameter 'tab-bar-lines' instead of 'tab-bar-mode'. Remove 'window-dedicated-p' (bug#71386). Doc fix. Add 'frame' arg to 'window-list-1' (bug#59862).
* | Improve logic of tab handling when quitting windows (bug#71386)Juri Linkov2025-03-311-7/+20
| | | | | | | | | | | | | | | | | | | | | | | | * lisp/window.el (window-deletable-p): Add tab logic that returns the symbol 'tab' for a set of predefined conditions. (window--delete): Call 'tab-bar-close-tab' when 'window-deletable-p' returns the symbol 'tab'. (quit-restore-window): Remove tab logic and merge it with frame logic. * test/lisp/tab-bar-tests.el (tab-bar-tests-close-other-tabs-default) (tab-bar-tests-close-other-tabs-with-arg): Clean up tabs afterwards. (tab-bar-tests-quit-restore-window): New test.
* | ; Twice mention 'tab' value in buffer display doc-strings (Bug#71386)Martin Rudalics2025-03-311-3/+5
| | | | | | | | | | | | * lisp/window.el (display-buffer-record-window) (window--display-buffer): Mention value 'tab' for TYPE argument (Bug#71386).
* | ; Fix last change (bug#76980)Eli Zaretskii2025-03-221-1/+1
| | | | | | | | | | | | * lisp/window.el (window--state-normalize-buffer-name): Doc fix. * doc/lispref/windows.texi (Window Configurations): Add indexing.
* | 'window-state-normalize-buffer-name' option for `uniquify' buffersshipmints2025-03-221-3/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | If 'window-state-normalize-buffer-name' is non-nil, 'window-state-get' will normalize stored buffer names, making them easier to restore for users that use 'uniquify' buffer naming. * doc/lispref/windows.texi (Window Configurations): Document 'window-state-normalize-buffer-name'. * lisp/window.el (window-state-normalize-buffer-name): New defvar. (window--state-normalize-buffer-name): New function. (window--state-get-1): Call 'window--state-normalize-buffer-name' rather than 'buffer-name'. * etc/NEWS: Announce 'window-state-normalize-buffer-name'. (Bug#76980)
* | Fix setting dedicatedness of WINDOW in 'window--display-buffer' (Bug#76911)Martin Rudalics2025-03-101-1/+2
| | | | | | | | | | | | * lisp/window.el (window--display-buffer): Consult WINDOW's 'window-side' parameter in order to find out whether it is a side window (Bug#76911).
* | Ignore dedicated windows in 'display-buffer-reuse-mode-window'Trevor Murphy2025-03-011-0/+2
| | | | | | | | | | | | | | | | | | | | Ignore the dedicated windows unless the dedicated window is already displaying the buffer-to-be-displayed. In that case, the window may be reused, according to the setting of 'inhibit-same-window'. * lisp/window.el (display-buffer-reuse-mode-window): Check 'window-dedicated-p' before pushing the candidate window onto the stack. (Bug#76216)
* | Optionally have 'display-buffer' reuse windows of indirect buffersMartin Rudalics2025-02-241-23/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * lisp/window.el (window-indirect-buffer-p): New function. (get-buffer-window-list): New argument INDIRECT. (display-buffer-reuse-window): New alist entry 'reuse-indirect' to reuse a window indirectly related to the BUFFER argument. * doc/lispref/windows.texi (Buffers and Windows): Describe new function 'window-indirect-buffer-p' and new argument INDIRECT of 'get-buffer-window-list'. (Buffer Display Action Functions): Describe new action alist entry 'reuse-indirect'. * etc/NEWS: Announce new argument for 'get-buffer-window-list' and new 'display-buffer' action alist entry 'reuse-indirect'.
* | Implement new user option 'quit-window-kill-buffer' (Bug#76248)Martin Rudalics2025-02-231-5/+28
| | | | | | | | | | | | | | | | * lisp/window.el (quit-window-kill-buffer): New option. (quit-window): Handle it. * doc/lispref/windows.texi (Quitting Windows): Describe new option 'quit-window-kill-buffer'. * etc/NEWS: Announce new option 'quit-window-kill-buffer'.
* | When ignoring parameters let 'split-window' split root window (Bug#76317)Martin Rudalics2025-02-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | This fixes a behavior introduced by the fix of Bug#73527 that splits the main window when the caller asks for splitting the root window. * lisp/window.el (window--make-major-side-window): Bind 'ignore-window-parameters' to t so 'split-window' won't mess with the WINDOW argument when it specifies the root window. (split-window): If 'ignore-window-parameters' is non-nil, don't try to split the main window instead of the root window.
* | Delete redundant lambdas around unary functionsStefan Kangas2025-02-111-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is not just stylistic, but also slightly faster. These are all regular defuns, of course, as this won't work with macros and defsubsts. * lisp/calc/calc-nlfit.el (math-nlfit-fit-curve) (calc-fit-hubbert-linear-curve): * lisp/calendar/cal-tex.el (cal-tex-latexify-list): * lisp/calendar/todo-mode.el (todo-sort): * lisp/cedet/semantic/ctxt.el (semantic-ctxt-end-of-symbol-default) (semantic-ctxt-current-symbol-default): * lisp/cedet/semantic/symref.el (semantic-symref-result-get-files): * lisp/cedet/semantic/texi.el (semantic-texi-command-completion-list): * lisp/descr-text.el (describe-char): * lisp/emacs-lisp/eieio-datadebug.el (data-debug-add-specialized-thing): * lisp/emacs-lisp/rmc.el (read-multiple-choice--short-answers): * lisp/eshell/em-pred.el (eshell-modifier-alist): * lisp/gnus/gnus-cache.el (gnus-cache-articles-in-group): * lisp/gnus/gnus-dired.el (gnus-dired-attach): * lisp/help-mode.el (help-package-def): * lisp/ibuf-ext.el (ibuffer-mark-modified-buffers): * lisp/image/image-dired.el: * lisp/international/quail.el (quail-keyseq-translate) (quail-get-translations): * lisp/isearch.el (isearch-pre-command-hook) (search-within-boundaries): * lisp/mail/supercite.el (sc-ask): * lisp/mh-e/mh-e.el (mh-variant-set): * lisp/net/rcirc.el (rcirc-nick-channels, rcirc-channel-nicks): (rcirc-browse-url): * lisp/obsolete/thumbs.el (thumbs-cleanup-thumbsdir): * lisp/org/org-agenda.el (org-agenda-filter-completion-function): * lisp/org/org-table.el (org-table-eval-formula): * lisp/org/org.el (org-set-regexps-and-options): * lisp/org/ox.el (org-export--get-inbuffer-options): * lisp/ses.el (ses-range): * lisp/textmodes/emacs-news-mode.el (emacs-news--buttonize): * lisp/textmodes/ispell.el (ispell-begin-tex-skip-regexp): * lisp/vc/vc-cvs.el (vc-cvs-stay-local-p): * lisp/window.el (window--state-get-1): * test/lisp/emacs-lisp/shortdoc-tests.el (shortdoc-all-groups-work): Delete redundant lambdas around unary functions. (Bug#66816)
* | Prioritize split along the longest edge by default.Nicolas Despres2025-02-081-24/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, `split-window-sensibly' prefers to try to split vertically first, disregarding the actual shape of the frame or the user preferences. This is a good default when Emacs is taller than wider. However, when Emacs is in full-screen (landscape screen layout), trying to split vertically may not be what the user expected, since there is plenty of space available on the right. Typical scenario: Emacs is in landscape layout, one buffer is open in a window covering the entire frame. Another buffer is opened in a second window (C-x 4 f). Both splits are feasible but users may prefer the horizontal one. This patch preserves the behavior of the `split-height-threshold' and `split-width-threshold' variables. Splitting continues not to be permitted if the edge length is below the threshold. * lisp/window.el (split-window-sensibly): First tried split direction follows user preferences. * etc/NEWS: Add an entry for new variable `split-window-preferred-direction'. * doc/emacs/windows.texi: Document new variable.
* | In 'replace-buffer-in-windows' try to preserve current buffer (Bug#75949)Martin Rudalics2025-01-311-1/+6
| | | | | | | | | | | | | | * lisp/window.el (replace-buffer-in-windows): Preserve current buffer when 'kill-buffer-quit-windows' is non-nil and a window showing BUFFER shall be quit. Running 'kill-buffer-hook' relies on it (Bug#75949).
* | Take the tab-line into account when computing the window edgesSteven Allen2025-01-161-1/+2
| | | | | | | | | | | | | | | | | | | | window-body-height correctly subtracts the tab-line's height but window-edges did not add this same height to the y-offset. See https://github.com/emacs-exwm/exwm/pull/114 * lisp/window.el (window-edges): Add the tab-line-height to the y-offet of the window body. (Bug#75576)
* | Have 'split-window' optionally resurrect deleted windowsMartin Rudalics2025-01-101-20/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * src/window.c (Fwindow_old_buffer): Handle deleted window as argument. (make_parent_window): Remove function. (Fsplit_window_internal): New argument REFER for resurrecting deleted windows. Incorporate functionality of defunct make_parent_window. (Fdelete_window_internal, delete_all_child_windows): Store any deleted window's buffer in the window's old_buffer slot. (window_dead_windows_table): Make it a 'value' type hash table so the sequence number cannot affect its weakness. * lisp/window.el (split-window): New argument REFER. * doc/lispref/windows.texi (Resurrecting Windows): New section. (Splitting Windows): Explain new argument REFER. (Window Hooks): Rewrite description of 'window-old-buffer'. * etc/NEWS: Mention new REFER argument for 'split-window'.
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