556 lines
21 KiB
EmacsLisp
556 lines
21 KiB
EmacsLisp
;;; ui/modeline/+default.el -*- lexical-binding: t; -*-
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;; This is a slimmed down version of `doom-modeline' that manipulates
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;; `mode-line-format' directly. Its purpose is to be truer to the original goal
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;; of Doom's modeline: to be more performant and minimalistic alternative to
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;; other modeline packages and to be abstraction-light. Too much abstraction is
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;; too much magic.
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;;
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;; Warning: this is still a WIP!
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(defun +modeline--set-var-and-refresh-bars-fn (&optional symbol value)
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(when symbol
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(set-default symbol value))
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(when doom-init-time
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(+modeline-refresh-bars-h)))
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;;
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;;; Variables
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(defcustom +modeline-height 31
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"The height of the modeline.
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This is enforced by the xpm bitmap bar in `+modeline-bar'. Without it (and in
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the terminal), this variable does nothing.
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Use `setq!' to adjust this variable live, as it will trigger an refresh of the
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bars in the modeline. `setq' will not."
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:type 'integer
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:set #'+modeline--set-var-and-refresh-bars-fn)
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(defcustom +modeline-bar-width 3
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"The width of the bar in the modeline.
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If nil, the bar will be made transparent and 1 pixel wide, as to be invisible,
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but without sacrificing its ability to enforce `+modeline-height'.
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Use `setq!' to adjust this variable live, as it will trigger an refresh of the
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bars in the modeline. `setq' will not."
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:type 'integer
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:set #'+modeline--set-var-and-refresh-bars-fn)
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(defvar +modeline-format-alist ()
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"An alist of modeline formats defined with `def-modeline!'.
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Each entry's CAR is the name and CDR is a cons cell whose CAR is the left-hand
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side of the modeline, and whose CDR is the right-hand side.")
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;;
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;;; Faces
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(defface +modeline-bar-active '((t (:inherit highlight)))
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"Face used for left-most bar on the mode-line of an active window.")
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(defface +modeline-bar-inactive '((t (:inherit mode-line-inactive)))
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"Face used for left-most bar on the mode-line of an inactive window.")
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(defface +modeline-highlight
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'((t (:inherit mode-line-highlight)))
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"Face used for highlighted modeline panels (like search counts).")
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(defface +modeline-alternate-highlight
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'((t (:inherit mode-line-highlight)))
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"Alternative face used for highlighted modeline panels (like search counts).")
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;;
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;;; Helpers
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;;; `active'
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(defvar +modeline--active-window (selected-window))
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(defun +modeline-active ()
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"Return non-nil if the selected window has an active modeline."
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(eq (selected-window) +modeline--active-window))
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(add-hook! 'pre-redisplay-functions
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(defun +modeline-set-selected-window-h (&rest _)
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"Track the active modeline's window in `+modeline--active-window'."
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(let ((win (selected-window)))
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(unless (minibuffer-window-active-p win)
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(setq +modeline--active-window (frame-selected-window))))))
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(defun +modeline--make-xpm (color width height)
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"Create an XPM bitmap via COLOR, WIDTH and HEIGHT. Inspired by `powerline''s `pl/+modeline--make-xpm'."
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(propertize
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" " 'display
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(let ((data (make-list height (make-list width 1)))
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(color (or color "None")))
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(ignore-errors
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(create-image
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(concat
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(format "/* XPM */\nstatic char * percent[] = {\n\"%i %i 2 1\",\n\". c %s\",\n\" c %s\","
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(length (car data))
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(length data)
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color
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color)
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(apply #'concat
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(cl-loop with idx = 0
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with len = (length data)
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for dl in data
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do (cl-incf idx)
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collect
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(concat "\""
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(cl-loop for d in dl
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if (= d 0) collect (string-to-char " ")
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else collect (string-to-char "."))
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(if (eq idx len) "\"};" "\",\n")))))
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'xpm t :ascent 'center)))))
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(defun +modeline-format-icon (icon label &optional face help-echo voffset)
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(propertize (concat (all-the-icons-material
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icon
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:face face
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:height 1.1
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:v-adjust (or voffset -0.225))
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(propertize label 'face face))
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'help-echo help-echo))
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(defun set-modeline! (name &optional default)
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"Set the modeline to NAME.
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If DEFAULT is non-nil, apply to all future buffers. Modelines are defined with
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`def-modeline!'."
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(if-let (format (assq name +modeline-format-alist))
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(cl-destructuring-bind (lhs . rhs) (cdr format)
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(if default
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(setq-default +modeline-format-left lhs
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+modeline-format-right rhs)
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(setq +modeline-format-left lhs
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+modeline-format-right rhs)))
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(error "Could not find %S modeline format" name)))
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(defun set-modeline-hook! (hooks name)
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"Set the modeline to NAME on HOOKS.
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See `def-modeline!' on how modelines are defined."
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(let ((fn (intern (format "+modeline-set-%s-format-h" name))))
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(dolist (hook (doom-enlist hooks))
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(when after-init-time
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(dolist (name (mapcar #'car +modeline-format-alist))
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(remove-hook hook (intern (format "+modeline-set-%s-format-h" name)))))
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(add-hook hook fn))))
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(defun def-modeline! (name lhs rhs)
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"Define a modeline format by NAME.
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LHS and RHS are the formats representing the left and right hand side of the
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mode-line, respectively. See the variable `format-mode-line' for details on what
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LHS and RHS will accept."
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(setf (alist-get name +modeline-format-alist)
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(cons lhs rhs))
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(fset (intern (format "+modeline-set-%s-format-h" name))
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(lambda (&rest _) (set-modeline! name))))
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(defmacro def-modeline-var! (name body &optional docstring &rest plist)
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"TODO"
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(unless (stringp docstring)
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(push docstring plist)
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(setq docstring nil))
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`(progn
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(,(if (plist-get plist :local) 'defvar-local 'defvar)
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,name ,body ,docstring)
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(put ',name 'risky-local-variable t)))
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;;
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;;; Segments
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(def-modeline-var! +modeline-format-left nil
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"The left-hand side of the modeline."
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:local t)
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(def-modeline-var! +modeline-format-right nil
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"The right-hand side of the modeline."
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:local t)
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;;; `+modeline-bar'
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(progn
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(def-modeline-var! +modeline-bar "")
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(def-modeline-var! +modeline-inactive-bar "")
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(add-hook! '(doom-init-ui-hook doom-load-theme-hook) :append
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(defun +modeline-refresh-bars-h ()
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(let ((width (or +modeline-bar-width 1))
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(height (max +modeline-height 0)))
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(setq +modeline-bar
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(+modeline--make-xpm
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(and +modeline-bar-width
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(face-background '+modeline-bar-active nil t))
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width height)
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+modeline-inactive-bar
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(+modeline--make-xpm
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(and +modeline-bar-width
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(face-background '+modeline-bar-inactive nil t))
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width height)))))
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(add-hook! 'doom-change-font-size-hook
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(defun +modeline-adjust-height-h ()
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(defvar +modeline--old-height +modeline-height)
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(let ((default-height +modeline--old-height)
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(scale (or (frame-parameter nil 'font-scale) 0)))
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(setq +modeline-height
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(if (> scale 0)
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(+ default-height (* (or (frame-parameter nil 'font-scale) 1)
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doom-font-increment))
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default-height))
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(when doom-init-time
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(+modeline-refresh-bars-h))))))
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;;; `+modeline-matches'
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(progn
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(use-package! anzu
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:after-call isearch-mode
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:config
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;; anzu and evil-anzu expose current/total state that can be displayed in the
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;; mode-line.
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(defadvice! +modeline-fix-anzu-count-a (positions here)
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"Calulate anzu counts via POSITIONS and HERE."
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:override #'anzu--where-is-here
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(cl-loop for (start . end) in positions
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collect t into before
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when (and (>= here start) (<= here end))
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return (length before)
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finally return 0))
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(setq anzu-cons-mode-line-p nil) ; manage modeline segment ourselves
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;; Ensure anzu state is cleared when searches & iedit are done
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(add-hook 'isearch-mode-end-hook #'anzu--reset-status 'append)
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(add-hook 'iedit-mode-end-hook #'anzu--reset-status)
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(advice-add #'evil-force-normal-state :before #'anzu--reset-status)
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;; Fix matches segment mirroring across all buffers
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(mapc #'make-variable-buffer-local
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'(anzu--total-matched anzu--current-position anzu--state
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anzu--cached-count anzu--cached-positions anzu--last-command
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anzu--last-isearch-string anzu--overflow-p)))
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(use-package! evil-anzu
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:when (featurep! :editor evil)
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:after-call (evil-ex-start-search evil-ex-start-word-search evil-ex-search-activate-highlight))
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(defun +modeline--anzu ()
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"Show the match index and total number thereof.
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Requires `anzu', also `evil-anzu' if using `evil-mode' for compatibility with
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`evil-search'."
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(when (and (bound-and-true-p anzu--state)
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(not (bound-and-true-p iedit-mode)))
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(propertize
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(let ((here anzu--current-position)
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(total anzu--total-matched))
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(cond ((eq anzu--state 'replace-query)
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(format " %d replace " anzu--cached-count))
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((eq anzu--state 'replace)
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(format " %d/%d " here total))
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(anzu--overflow-p
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(format " %s+ " total))
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(t
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(format " %s/%d " here total))))
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'face (if (+modeline-active) '+modeline-highlight))))
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(defun +modeline--evil-substitute ()
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"Show number of matches for evil-ex substitutions and highlights in real time."
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(when (and (bound-and-true-p evil-local-mode)
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(or (assq 'evil-ex-substitute evil-ex-active-highlights-alist)
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(assq 'evil-ex-global-match evil-ex-active-highlights-alist)
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(assq 'evil-ex-buffer-match evil-ex-active-highlights-alist)))
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(propertize
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(let ((range (if evil-ex-range
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(cons (car evil-ex-range) (cadr evil-ex-range))
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(cons (line-beginning-position) (line-end-position))))
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(pattern (car-safe (evil-delimited-arguments evil-ex-argument 2))))
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(if pattern
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(format " %s matches " (how-many pattern (car range) (cdr range)))
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" - "))
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'face (if (+modeline-active) '+modeline-highlight))))
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(defun +modeline--multiple-cursors ()
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"Show the number of multiple cursors."
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(when (bound-and-true-p evil-mc-cursor-list)
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(let ((count (length evil-mc-cursor-list)))
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(when (> count 0)
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(let ((face (cond ((not (+modeline-active)) 'mode-line-inactive)
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(evil-mc-frozen '+modeline-highlight)
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('+modeline-alternate-highlight))))
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(concat (propertize " " 'face face)
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(all-the-icons-faicon "i-cursor" :face face :v-adjust -0.0575)
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(propertize " " 'face `(:inherit (variable-pitch ,face)))
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(propertize (format "%d " count)
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'face face)))))))
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(defun +modeline--overlay< (a b)
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"Sort overlay A and B."
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(< (overlay-start a) (overlay-start b)))
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(defun +modeline--iedit ()
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"Show the number of iedit regions matches + what match you're on."
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(when (and (bound-and-true-p iedit-mode)
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(bound-and-true-p iedit-occurrences-overlays))
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(propertize
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(let ((this-oc (or (let ((inhibit-message t))
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(iedit-find-current-occurrence-overlay))
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(save-excursion
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(iedit-prev-occurrence)
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(iedit-find-current-occurrence-overlay))))
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(length (length iedit-occurrences-overlays)))
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(format " %s/%d "
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(if this-oc
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(- length
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(length (memq this-oc (sort (append iedit-occurrences-overlays nil)
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#'+modeline--overlay<)))
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-1)
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"-")
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length))
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'face (if (+modeline-active) '+modeline-highlight))))
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(defun +modeline--macro-recording ()
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"Display current Emacs or evil macro being recorded."
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(when (and (+modeline-active)
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(or defining-kbd-macro
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executing-kbd-macro))
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(let ((sep (propertize " " 'face '+modeline-highlight)))
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(concat sep
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(propertize (if (bound-and-true-p evil-this-macro)
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(char-to-string evil-this-macro)
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"Macro")
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'face '+modeline-highlight)
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sep
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(all-the-icons-octicon "triangle-right"
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:face '+modeline-highlight
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:v-adjust -0.05)
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sep))))
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(def-modeline-var! +modeline-matches
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'(:eval
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(let ((meta (concat (+modeline--macro-recording)
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(+modeline--anzu)
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(+modeline--evil-substitute)
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(+modeline--iedit)
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(+modeline--multiple-cursors))))
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(or (and (not (equal meta "")) meta)
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" %I ")))))
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;;; `+modeline-modes'
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(def-modeline-var! +modeline-modes ; remove minor modes
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'(""
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(:propertize mode-name
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face bold
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mouse-face +modeline-highlight)
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mode-line-process
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"%n"
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" "))
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;;; `+modeline-buffer-identification'
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(def-modeline-var! +modeline-buffer-identification ; slightly more informative buffer id
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'((:eval
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(propertize
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(let ((buffer-file-name (buffer-file-name (buffer-base-buffer))))
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(or (when buffer-file-name
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(if-let (project (doom-project-root buffer-file-name))
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(let ((filename (or buffer-file-truename (file-truename buffer-file-name))))
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(file-relative-name filename (concat project "..")))))
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"%b"))
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'face (cond ((buffer-modified-p)
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'(error bold mode-line-buffer-id))
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((+modeline-active)
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'mode-line-buffer-id))
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'help-echo buffer-file-name))
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(buffer-read-only (:propertize " RO" face warning))))
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;;; `+modeline-position'
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(def-modeline-var! +modeline-position '(" %l:%C %p "))
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;;; `+modeline-checker'
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(progn
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(def-modeline-var! +modeline-checker nil
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"Displays color-coded error status & icon for the current buffer."
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:local t)
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(add-hook! '(flycheck-status-changed-functions
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flycheck-mode-hook)
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(defun +modeline-checker-update (&optional status)
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"Update flycheck text via STATUS."
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(setq +modeline-checker
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(pcase status
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(`finished
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(if flycheck-current-errors
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(let-alist (flycheck-count-errors flycheck-current-errors)
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(let ((error (or .error 0))
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(warning (or .warning 0))
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(info (or .info 0)))
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(+modeline-format-icon "do_not_disturb_alt"
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(number-to-string (+ error warning info))
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(cond ((> error 0) 'error)
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((> warning 0) 'warning)
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('success))
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(format "Errors: %d, Warnings: %d, Debug: %d"
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error
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warning
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info))))
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(+modeline-format-icon "check" "" 'success)))
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(`running (+modeline-format-icon "access_time" "*" 'font-lock-comment-face "Running..."))
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(`errored (+modeline-format-icon "sim_card_alert" "!" 'error "Errored!"))
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(`interrupted (+modeline-format-icon "pause" "!" 'font-lock-comment-face "Interrupted"))
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(`suspicious (+modeline-format-icon "priority_high" "!" 'error "Suspicious")))))))
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;;; `+modeline-selection-info'
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(progn
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(defsubst +modeline--column (pos)
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"Get the column of the position `POS'."
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(save-excursion (goto-char pos)
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(current-column)))
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(def-modeline-var! +modeline-selection-info
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'(:eval
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(when (or mark-active
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(and (bound-and-true-p evil-local-mode)
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(eq evil-state 'visual)))
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(cl-destructuring-bind (beg . end)
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(if (boundp 'evil-local-mode)
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(cons evil-visual-beginning evil-visual-end)
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(cons (region-beginning) (region-end)))
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(propertize
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(let ((lines (count-lines beg (min end (point-max)))))
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(concat " "
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(cond ((or (bound-and-true-p rectangle-mark-mode)
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(and (bound-and-true-p evil-visual-selection)
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(eq 'block evil-visual-selection)))
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(let ((cols (abs (- (+modeline--column end)
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(+modeline--column beg)))))
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(format "%dx%dB" lines cols)))
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((and (bound-and-true-p evil-visual-selection)
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(eq evil-visual-selection 'line))
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(format "%dL" lines))
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((> lines 1)
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(format "%dC %dL" (- end beg) lines))
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((format "%dC" (- end beg))))
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(when (derived-mode-p 'text-mode)
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(format " %dW" (count-words beg end)))
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" "))
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'face (if (+modeline-active) 'success)))))
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"Information about the current selection, such as how many characters and
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lines are selected, or the NxM dimensions of a block selection.")
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(defun +modeline-add-selection-segment-h ()
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(add-to-list '+modeline-format-left '+modeline-selection-info 'append))
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(defun +modeline-remove-selection-segment-h ()
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(delq! '+modeline-selection-info +modeline-format-left))
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(if (featurep 'evil)
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(progn
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(add-hook 'evil-visual-state-entry-hook #'+modeline-add-selection-segment-h)
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(add-hook 'evil-visual-state-exit-hook #'+modeline-remove-selection-segment-h))
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(add-hook 'activate-mark-hook #'+modeline-add-selection-segment-h)
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(add-hook 'deactivate-mark-hook #'+modeline-remove-selection-segment-h)))
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|
|
|
|
|
;;; `+modeline-encoding'
|
|
(def-modeline-var! +modeline-encoding
|
|
'(:eval
|
|
(concat (coding-system-eol-type-mnemonic buffer-file-coding-system)
|
|
" "
|
|
(let ((sys (coding-system-plist buffer-file-coding-system)))
|
|
(if (memq (plist-get sys :category)
|
|
'(coding-category-undecided coding-category-utf-8))
|
|
"UTF-8"
|
|
(upcase (symbol-name (plist-get sys :name))))))))
|
|
|
|
;; Clearer mnemonic labels for EOL styles
|
|
(setq eol-mnemonic-dos "CRLF"
|
|
eol-mnemonic-mac "CR"
|
|
eol-mnemonic-unix "LF"
|
|
eol-mnemonic-undecided "??")
|
|
|
|
|
|
;;
|
|
;;; Default modeline
|
|
|
|
(def-modeline! :main
|
|
'(""
|
|
+modeline-matches
|
|
" "
|
|
+modeline-buffer-identification
|
|
+modeline-position)
|
|
`(""
|
|
mode-line-misc-info
|
|
+modeline-modes
|
|
(vc-mode (" "
|
|
,(all-the-icons-octicon "git-branch" :v-adjust 0.0)
|
|
vc-mode " "))
|
|
" "
|
|
+modeline-encoding
|
|
" "
|
|
(+modeline-checker ("" +modeline-checker " "))))
|
|
|
|
(def-modeline! 'project
|
|
`(" "
|
|
,(all-the-icons-octicon
|
|
"file-directory"
|
|
:face 'bold
|
|
:v-adjust -0.05
|
|
:height 1.25)
|
|
(:propertize (" " (:eval (abbreviate-file-name default-directory)))
|
|
face bold))
|
|
'("" +modeline-modes))
|
|
|
|
(def-modeline! 'special
|
|
'("" +modeline-matches
|
|
" " +modeline-buffer-identification)
|
|
'("" +modeline-modes))
|
|
|
|
;; TODO (def-modeline! pdf ...)
|
|
;; TODO (def-modeline! helm ...)
|
|
|
|
|
|
;;
|
|
;;; Bootstrap
|
|
|
|
(size-indication-mode +1) ; filesize in modeline
|
|
|
|
(setq-default
|
|
mode-line-format
|
|
'(""
|
|
+modeline-bar
|
|
+modeline-format-left
|
|
(:eval
|
|
(propertize
|
|
" "
|
|
'display
|
|
`((space :align-to (- (+ right right-fringe right-margin)
|
|
,(string-width
|
|
(format-mode-line '("" +modeline-format-right))))))))
|
|
+modeline-format-right))
|
|
(with-current-buffer "*Messages*"
|
|
(setq mode-line-format (default-value 'mode-line-format)))
|
|
|
|
|
|
;; Other modes
|
|
(set-modeline! :main 'default)
|
|
(set-modeline-hook! '+doom-dashboard-mode-hook 'project)
|
|
;; (set-modeline-hook! 'pdf-tools-enabled-hook 'pdf)
|
|
(set-modeline-hook! '(special-mode-hook
|
|
image-mode-hook
|
|
circe-mode-hook)
|
|
'special)
|
|
|
|
(add-hook! 'magit-mode-hook
|
|
(defun +modeline-init-project-or-hide-h ()
|
|
(if (eq major-mode 'magit-status-mode)
|
|
(set-modeline! 'project)
|
|
(hide-mode-line-mode +1))))
|