382 lines
20 KiB
EmacsLisp
382 lines
20 KiB
EmacsLisp
;;; +tab-bar.el -*- lexical-binding: t; -*-
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;;; Commentary:
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;; Emacs 28 comes with an easy-to-use `tab-bar-format' option, but I still use
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;; Emacs 27 on my Windows machine. Thus, the code in this file.
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;;; Code:
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(require 'acdw)
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(require 'tab-bar)
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(defface +tab-bar-extra
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'((t :inherit (tab-bar font-lock-comment-face)))
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"Tab bar face for extra information, like the menu-bar and time."
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:group 'basic-faces)
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;; Common
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(defun +tab-bar-space (&optional n)
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"Display a space N characters long, or 1."
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`((space menu-item ,(+string-repeat (or n 1) " ") ignore)))
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(defun +tab-bar-misc-info ()
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"Display `mode-line-misc-info', formatted for the tab-bar."
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`((misc-info menu-item ,(string-trim-right
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(format-mode-line mode-line-misc-info))
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ignore)))
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(defcustom +tracking-hide-when-org-clocking nil
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"Hide the `tracking-mode' information when clocked in."
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:type 'boolean)
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(defun +tab-bar-tracking-mode ()
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"Display `tracking-mode-line-buffers' in the tab-bar."
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;; TODO: write something to convert a mode-line construct to a tab-bar
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;; construct.
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(when (and (bound-and-true-p tracking-mode)
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(not (and +tracking-hide-when-org-clocking
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(bound-and-true-p org-clock-current-task))))
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(cons (when (> (length tracking-mode-line-buffers) 0)
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'(track-mode-line-separator menu-item " " ignore))
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(cl-loop for i from 0 below (length tracking-mode-line-buffers)
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as item = (nth i tracking-mode-line-buffers)
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collect (append (list (intern (format "tracking-mode-line-%s" i))
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'menu-item
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(string-trim (format-mode-line item)))
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(if-let ((keymap (plist-get item 'keymap)))
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(list (alist-get 'down-mouse-1 (cdadr keymap)))
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(list #'ignore))
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(when-let ((help (plist-get item 'help-echo)))
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(list :help help)))))))
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(defun +tab-bar-timer ()
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"Display `+timer-string' in the tab-bar."
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(when (> (length (bound-and-true-p +timer-string)) 0)
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`((timer-string menu-item
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,(concat " " +timer-string)
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(lambda (ev)
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(interactive "e")
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(cond ((not +timer-timer) nil)
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((equal +timer-string +timer-running-string)
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(popup-menu
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'("Running timer"
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["Cancel timer" +timer-cancel t])
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ev))
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(t (setq +timer-string ""))))))))
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(defun +tab-bar-date ()
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"Display `display-time-string' in the tab-bar."
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(when display-time-mode
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`((date-time-string menu-item
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,(substring-no-properties (concat " " (string-trim display-time-string)))
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(lambda (ev)
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(interactive "e")
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(popup-menu
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(append '("Timer")
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(let (r)
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(dolist (time '(3 5 10))
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(push (vector (format "Timer for %d minutes" time)
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`(lambda () (interactive)
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(+timer ,time))
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:active t)
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r))
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(nreverse r))
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'(["Timer for ..." +timer t]))
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ev))
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:help (discord-date-string)))))
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(defun +tab-bar-notmuch-count ()
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"Display a notmuch count in the tab-bar."
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(when (and (executable-find "notmuch")
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(featurep 'notmuch))
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(let* ((counts (ignore-errors (notmuch-hello-query-counts notmuch-saved-searches)))
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(next (cl-find "inbox+unread" counts :key (lambda (l) (plist-get l :name)) :test 'equal))
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(next-count (plist-get next :count)))
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(when (and next-count (> next-count 0))
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`((notmuch-count menu-item
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,(format " |%s|" next-count)
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ignore
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:help ,(format "%s mails requiring attention." next-count)))))))
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(defun +tab-bar-org-clock ()
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"Display `org-mode-line-string' in the tab-bar."
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(when (and (fboundp 'org-clocking-p)
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(org-clocking-p))
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;; org-mode-line-string
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`((org-clocking menu-item
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,org-mode-line-string
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(lambda (ev)
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(interactive "e")
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(let ((menu (make-sparse-keymap
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(or org-clock-current-task "Org-Clock"))))
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(map-keymap (lambda (key binding)
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(when (consp binding)
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(define-key-after menu (vector key)
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(copy-sequence binding))))
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(org-clock-menu))
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(message "%S" ev)
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(popup-menu menu ev)))
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:help ,(or (replace-regexp-in-string
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(rx "[[" (group (* (not "]")))
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"][" (group (* (not "]")))
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"]]")
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"\\2"
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org-clock-current-task)
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"Org-Clock")))))
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(defcustom +tab-bar-emms-max-length 24
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"Maximum length of `+tab-bar-emms'."
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:type 'number)
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(defun +tab-bar-emms ()
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"Display EMMS now playing information."
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(when (and (bound-and-true-p emms-mode-line-mode)
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emms-player-playing-p)
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(let ((now-playing (+string-truncate (emms-mode-line-playlist-current)
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(- +tab-bar-emms-max-length 2))))
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`(emms-now-playing menu-item
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,(concat "{" now-playing "}" " ")
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emms-pause
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( :help ,(emms-mode-line-playlist-current))))))
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(defun +tab-bar-bongo ()
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"Display Bongo now playing information."
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(when-let ((modep (bound-and-true-p bongo-mode-line-indicator-mode))
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(buf (cl-some (lambda (b)
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(with-current-buffer b
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(when-let* ((modep (derived-mode-p 'bongo-playlist-mode))
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(bongo-playlist-buffer b)
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(playingp (bongo-playing-p)))
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b)))
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(buffer-list))))
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`((bongo-now-playing menu-item
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,(concat "{"
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(let ((bongo-field-separator ""))
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(+string-truncate (replace-regexp-in-string
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"\\(.*\\)\\(.*\\)\\(.*\\)"
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"\\1: \\3"
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(bongo-formatted-infoset))
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;; This isn't right
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(- (min 50 (/ (frame-width) 3 )) 2)))
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"}")
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(lambda () (interactive)
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(let ((bongo-playlist-buffer
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;; XXX: I'm sure this is terribly inefficient
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(cl-some (lambda (b)
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(with-current-buffer b
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(when-let* ((modep (derived-mode-p
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'bongo-playlist-mode))
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(bongo-playlist-buffer b)
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(playingp (bongo-playing-p)))
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b)))
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(buffer-list))))
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(with-bongo-playlist-buffer
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(bongo-pause/resume))))
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:help ,(funcall bongo-header-line-function)))))
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(defvar +tab-bar-show-original nil
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"Original value of `tab-bar-show'.")
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(defun +tab-bar-basename ()
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"Generate the tab name from the basename of the buffer of the
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selected window."
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(let* ((tab-file-name (buffer-file-name (window-buffer
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(minibuffer-selected-window)))))
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(concat " "
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(if tab-file-name
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(file-name-nondirectory tab-file-name)
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(+tab-bar-tab-name-truncated-left)))))
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;;; FIXME this doesn't work...
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;; (defvar +tab-bar-tab-min-width 8
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;; "Minimum width of a tab on the tab bar.")
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;; (defvar +tab-bar-tab-max-width 24
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;; "Maximum width of a tab on the tab bar.")
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;; (defun +tab-bar-fluid-calculate-width ()
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;; "Calculate the width of each tab in the tab-bar."
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;; (let* ((tab-bar-list (cdr (tab-bar-make-keymap-1)))
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;; (tab-bar-avail-width (frame-width))
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;; (tab-bar-tab-count (length (tab-bar-tabs)))
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;; (tab-bar-close-button-char-width 1)
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;; (tab-bar-add-tab-button-char-width 1)
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;; (tab-bar-total-width
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;; (length (mapconcat
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;; (lambda (el)
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;; (when-let ((str (car-safe (cdr-safe (cdr-safe el)))))
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;; (substring-no-properties (eval str))))
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;; tab-bar-list)))
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;; (tab-bar-total-tab-width
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;; (+ (* tab-bar-tab-count tab-bar-close-button-char-width)
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;; tab-bar-add-tab-button-char-width
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;; (length (mapconcat
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;; (lambda (el)
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;; (substring-no-properties (alist-get 'name el)))
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;; (tab-bar-tabs)))))
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;; (tab-bar-total-nontab-width (- tab-bar-total-width
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;; tab-bar-total-tab-width)))
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;; (min +tab-bar-tab-max-width
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;; (max +tab-bar-tab-min-width
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;; (/ (- tab-bar-avail-width
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;; tab-bar-total-tab-width
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;; tab-bar-total-nontab-width)
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;; tab-bar-tab-count)))))
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;; (defun +tab-bar-fluid-width ()
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;; "Generate the tab name to fluidly fit in the given space."
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;; (let* ((tab-file-name (buffer-file-name (window-buffer
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;; (minibuffer-selected-window)))))
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;; (format (format " %%s%%%ds" (+tab-bar-fluid-calculate-width))
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;; (if tab-file-name
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;; (file-name-nondirectory tab-file-name)
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;; (+tab-bar-tab-name-truncated-left))
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;; " ")))
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(defun +tab-bar-tab-name-truncated-left ()
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"Generate the tab name from the buffer of the selected window.
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This is just like `tab-bar-tab-name-truncated', but truncates the
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name to the left."
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(let* ((tab-name (buffer-name (window-buffer (minibuffer-selected-window))))
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(ellipsis (cond
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(tab-bar-tab-name-ellipsis)
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((char-displayable-p ?…) "…")
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("...")))
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(l-ell (length ellipsis))
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(l-name (length tab-name)))
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(if (< (length tab-name) tab-bar-tab-name-truncated-max)
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tab-name
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(propertize (concat
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(when (> (+ l-name l-ell) tab-bar-tab-name-truncated-max)
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ellipsis)
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(truncate-string-to-width tab-name l-name
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(max 0 (- l-name tab-bar-tab-name-truncated-max l-ell))))
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'help-echo tab-name))))
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(defun +tab-bar-format-align-right ()
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"Align the rest of tab bar items to the right, pixel-wise."
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;; XXX: ideally, wouldn't require `shr' here
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(require 'shr) ; `shr-string-pixel-width'
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(let* ((rest (cdr (memq '+tab-bar-format-align-right tab-bar-format)))
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(rest (tab-bar-format-list rest))
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(rest (mapconcat (lambda (item) (nth 2 item)) rest ""))
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(hpos (shr-string-pixel-width rest))
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(str (propertize " " 'display `(space :align-to (- right (,hpos))))))
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`((align-right menu-item ,str ignore))))
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;;; Menu bar
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;; stole from https://github.com/emacs-mirror/emacs/blob/master/lisp/tab-bar.el
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(defun +tab-bar-menu-bar (event)
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"Pop up the same menu as displayed by the menu bar.
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Used by `tab-bar-format-menu-bar'."
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(interactive "e")
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(let ((menu (make-sparse-keymap (propertize "Menu Bar" 'hide t))))
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(map-keymap (lambda (key binding)
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(when (consp binding)
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(define-key-after menu (vector key)
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(copy-sequence binding))))
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(menu-bar-keymap))
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(popup-menu menu event)))
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(defcustom +tab-bar-menu-bar-icon " Emacs "
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"The string to use for the tab-bar menu icon."
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:type 'string)
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(defun +tab-bar-format-menu-bar ()
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"Produce the Menu button for the tab bar that shows the menu bar."
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`((menu-bar menu-item (propertize +tab-bar-menu-bar-icon 'face '+tab-bar-extra)
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+tab-bar-menu-bar :help "Menu Bar")))
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;;; Tab bar format tabs
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(require 'el-patch)
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(el-patch-feature tab-bar)
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(with-eval-after-load 'tab-bar
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(el-patch-defun tab-bar--format-tab (tab i)
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"Format TAB using its index I and return the result as a keymap."
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(append
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(el-patch-remove
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`((,(intern (format "sep-%i" i)) menu-item ,(tab-bar-separator) ignore)))
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(cond
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((eq (car tab) 'current-tab)
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`((current-tab
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menu-item
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,(funcall tab-bar-tab-name-format-function tab i)
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ignore
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:help "Current tab")))
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(t
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`((,(intern (format "tab-%i" i))
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menu-item
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,(funcall tab-bar-tab-name-format-function tab i)
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,(alist-get 'binding tab)
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:help "Click to visit tab"))))
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(when (alist-get 'close-binding tab)
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`((,(if (eq (car tab) 'current-tab) 'C-current-tab (intern (format "C-tab-%i" i)))
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menu-item ""
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,(alist-get 'close-binding tab)))))))
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;; Emacs 27
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(defun +tab-bar-misc-info-27 (output &rest _)
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"Display `mode-line-misc-info' in the `tab-bar' on Emacs 27.
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This is :filter-return advice for `tab-bar-make-keymap-1'."
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(let* ((reserve (length (format-mode-line mode-line-misc-info)))
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(str (propertize " "
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'display `(space :align-to (- right (- 0 right-margin)
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,reserve)))))
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(prog1 (append output
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`((align-right menu-item ,str nil))
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(+tab-bar-misc-info)))))
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;; Emacs 28
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(defvar +tab-bar-format-original nil
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"Original value of `tab-bar-format'.")
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(defun +tab-bar-misc-info-28 ()
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"Display `mode-line-misc-info', right-aligned, on Emacs 28."
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(append (unless (memq 'tab-bar-format-align-right tab-bar-format)
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'(tab-bar-format-align-right))
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'(+tab-bar-misc-info)))
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(define-minor-mode +tab-bar-misc-info-mode
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"Show the `mode-line-misc-info' in the `tab-bar'."
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:lighter ""
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:global t
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(if +tab-bar-misc-info-mode
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(progn ; Enable
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(setq +tab-bar-show-original tab-bar-show)
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(cond
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((boundp 'tab-bar-format) ; Emacs 28
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(setq +tab-bar-format-original tab-bar-format)
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(unless (memq '+tab-bar-misc-info tab-bar-format)
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(setq tab-bar-format
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(append tab-bar-format (+tab-bar-misc-info-28)))))
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((fboundp 'tab-bar-make-keymap-1) ; Emacs 27
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(advice-add 'tab-bar-make-keymap-1 :filter-return
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'+tab-bar-misc-info-27)))
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(setq tab-bar-show t))
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(progn ; Disable
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(setq tab-bar-show +tab-bar-show-original)
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(cond
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((boundp 'tab-bar-format) ; Emacs 28
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(setq tab-bar-format +tab-bar-format-original))
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((fboundp 'tab-bar-make-keymap-1) ; Emacs 27
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(advice-remove 'tab-bar-make-keymap-1 '+tab-bar-misc-info-27))))))
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(provide '+tab-bar)
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;;; +tab-bar.el ends here
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