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Allow tabs to have consistent given names

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* lisp/tab-bar.el (tab-bar--tab): Pull automatic name information from
current tab
(tab-bar--current-tab): Pull automatic name information from current
tab, or from new optional template argument
(tab-bar-select-tab): Pass the target tab as a template when setting
it as current tab
(tab-bar-rename-tab, tab-bar-rename-tab-by-name): New functions
* doc/emacs/frames.texi (Tab Bars): Document new tab rename functionality.
This commit is contained in:
Robert Cochran 2019-10-07 13:41:47 -07:00 committed by Juri Linkov
parent 56a7c60872
commit bf112e23ef
2 changed files with 76 additions and 19 deletions
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4
doc/emacs/frames.texi
View file

@ -1282,6 +1282,10 @@ runs @code{find-file-other-tab}. @xref{Visiting}.
@item C-x 6 d @var{directory} @key{RET}
Select a Dired buffer for directory @var{directory} in another tab.
This runs @code{dired-other-tab}. @xref{Dired}.
@item C-x 6 r @var{tabname} @key{RET}
Renames the current tab to @var{tabname}. You can control the
programmatic name given to a tab by default by customizing the
variable @code{tab-bar-tab-name-function}.
@end table
@vindex tab-bar-new-tab-choice

91
lisp/tab-bar.el
View file

@ -359,9 +359,13 @@ Return its existing value or a new value."
(let* ((separator (or tab-bar-separator (if window-system " " "|")))
(i 0)
(tabs (funcall tab-bar-tabs-function))
(current-tab-name (assq 'name (assq 'current-tab tabs))))
(when current-tab-name
(setf (cdr current-tab-name) (funcall tab-bar-tab-name-function)))
(current-tab-name (assq 'name (assq 'current-tab tabs)))
(current-tab-explicit-name (assq 'explicit-name (assq 'current-tab tabs))))
(when (and current-tab-name
current-tab-explicit-name
(not (cdr current-tab-explicit-name)))
(setf (cdr current-tab-name)
(funcall tab-bar-tab-name-function)))
(append
'(keymap (mouse-1 . tab-bar-handle-mouse))
(mapcan
@ -413,16 +417,29 @@ Return its existing value or a new value."
(defun tab-bar--tab ()
`(tab
(name . ,(funcall tab-bar-tab-name-function))
(time . ,(time-convert nil 'integer))
(wc . ,(current-window-configuration))
(ws . ,(window-state-get
(frame-root-window (selected-frame)) 'writable))))
(let* ((tab (assq 'current-tab (frame-parameter nil 'tabs)))
(tab-explicit-name (cdr (assq 'explicit-name tab))))
`(tab
(name . ,(if tab-explicit-name
(cdr (assq 'name tab))
(funcall tab-bar-tab-name-function)))
(explicit-name . ,tab-explicit-name)
(time . ,(time-convert nil 'integer))
(wc . ,(current-window-configuration))
(ws . ,(window-state-get
(frame-root-window (selected-frame)) 'writable)))))
(defun tab-bar--current-tab ()
`(current-tab
(name . ,(funcall tab-bar-tab-name-function))))
(defun tab-bar--current-tab (&optional tab)
;; `tab` here is an argument meaning 'use tab as template'. This is
;; necessary when switching tabs, otherwise the destination tab
;; inherit the current tab's `explicit-name` parameter.
(let* ((tab (or tab (assq 'current-tab (frame-parameter nil 'tabs))))
(tab-explicit-name (cdr (assq 'explicit-name tab))))
`(current-tab
(name . ,(if tab-explicit-name
(cdr (assq 'name tab))
(funcall tab-bar-tab-name-function)))
(explicit-name . ,tab-explicit-name))))
(defun tab-bar--current-tab-index (&optional tabs)
;; FIXME: could be replaced with 1-liner using seq-position
@ -491,7 +508,7 @@ to the numeric argument. ARG counts from 1."
(when from-index
(setf (nth from-index tabs) from-tab))
(setf (nth to-index tabs) (tab-bar--current-tab)))
(setf (nth to-index tabs) (tab-bar--current-tab (nth to-index tabs))))
(when tab-bar-mode
(force-mode-line-update)))))
@ -649,16 +666,51 @@ TO-INDEX counts from 1."
(force-mode-line-update)
(message "Deleted all other tabs")))))
(defun tab-bar-rename-tab (name &optional arg)
"Rename the tab specified by its absolute position ARG.
If no ARG is specified, then rename the current tab.
ARG counts from 1.
If NAME is the empty string, then use the automatic name
function `tab-bar-tab-name-function'."
(interactive "sNew name for tab (leave blank for automatic naming): \nP")
(let* ((tabs (tab-bar-tabs))
(tab-index (if arg
(1- (max 0 (min arg (length tabs))))
(tab-bar--current-tab-index tabs)))
(tab-to-rename (nth tab-index tabs))
(tab-explicit-name (> (length name) 0))
(tab-new-name (if tab-explicit-name
name
(funcall tab-bar-tab-name-function))))
(setf (cdr (assq 'name tab-to-rename)) tab-new-name
(cdr (assq 'explicit-name tab-to-rename)) tab-explicit-name
(frame-parameter nil 'tabs) tabs)
(if (tab-bar-mode)
(force-mode-line-update)
(message "Renamed tab to '%s'" tab-new-name))))
(defun tab-bar-rename-tab-by-name (tab-name new-name)
"Rename the tab named TAB-NAME.
If NEW-NAME is the empty string, then use the automatic name
function `tab-bar-tab-name-function'."
(interactive (list (completing-read "Rename tab by name: "
(mapcar (lambda (tab)
(cdr (assq 'name tab)))
(tab-bar-tabs)))
(read-from-minibuffer "New name for tab (leave blank for automatic naming): ")))
(tab-bar-rename-tab new-name (tab-bar--tab-index-by-name tab-name)))
;;; Short aliases
(defalias 'tab-new 'tab-bar-new-tab)
(defalias 'tab-close 'tab-bar-close-tab)
(defalias 'tab-new 'tab-bar-new-tab)
(defalias 'tab-close 'tab-bar-close-tab)
(defalias 'tab-close-other 'tab-bar-close-other-tabs)
(defalias 'tab-select 'tab-bar-select-tab)
(defalias 'tab-next 'tab-bar-switch-to-next-tab)
(defalias 'tab-previous 'tab-bar-switch-to-prev-tab)
(defalias 'tab-list 'tab-bar-list)
(defalias 'tab-select 'tab-bar-select-tab)
(defalias 'tab-next 'tab-bar-switch-to-next-tab)
(defalias 'tab-previous 'tab-bar-switch-to-prev-tab)
(defalias 'tab-rename 'tab-bar-rename-tab)
(defalias 'tab-list 'tab-bar-list)
;;; Non-graphical access to frame-local tabs (named window configurations)
@ -915,6 +967,7 @@ Like \\[find-file-other-frame] (which see), but creates a new tab."
(define-key ctl-x-6-map "b" 'switch-to-buffer-other-tab)
(define-key ctl-x-6-map "f" 'find-file-other-tab)
(define-key ctl-x-6-map "\C-f" 'find-file-other-tab)
(define-key ctl-x-6-map "r" 'tab-rename)
(provide 'tab-bar)