parent
29ba637959
commit
543c82bb08
217
mood-line.el
217
mood-line.el
@ -18,6 +18,7 @@
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;; * Anzu and multiple-cursors counter
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;; * Version control status indicator
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;; * Flycheck status indicator
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;; * Flymake support
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;; * Lightweight with no dependencies
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;;
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;; To enable mood-line:
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@ -46,9 +47,13 @@
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;; Variable declarations
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;;
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(defvar mood-line--current-window)
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(defvar flycheck-current-errors)
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(defvar flymake--mode-line-format)
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(defvar anzu--state)
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(defvar anzu--cached-count)
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(defvar anzu--overflow-p)
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(defvar anzu--current-position)
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(defvar anzu--total-matched)
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(defvar multiple-cursors-mode)
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;;
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@ -56,7 +61,6 @@
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;;
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(declare-function flycheck-count-errors "flycheck" (errors))
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(declare-function anzu--update-mode-line "anzu" ())
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(declare-function mc/num-cursors "multiple-cursors" ())
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;;
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@ -67,13 +71,23 @@
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"A minimal mode-line configuration inspired by doom-modeline."
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:group 'mode-line)
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(defcustom mood-line-show-point nil
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(defcustom mood-line-show-eol-style nil
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"If t, the EOL style of the current buffer will be displayed in the mode-line."
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:group 'mood-line
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:type 'boolean)
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(defcustom mood-line-show-encoding-information nil
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"If t, the encoding format of the current buffer will be displayed in the mode-line."
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:group 'mood-line
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:type 'boolean)
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(defcustom mood-line-show-cursor-point nil
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"If t, the value of `point' will be displayed next to the cursor position in the mode-line."
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:group 'mood-line
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:type 'boolean)
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(defface mood-line-status-grayed-out
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'((t (:inherit (font-lock-doc-face))))
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(defface mood-line-status-neutral
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'((t (:inherit (shadow))))
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"Face used for neutral or inactive status indicators in the mode-line."
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:group 'mood-line)
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@ -98,11 +112,10 @@
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:group 'mood-line)
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(defface mood-line-unimportant
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'((t (:inherit (font-lock-doc-face))))
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'((t (:inherit (shadow))))
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"Face used for less important mode-line elements."
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:group 'mood-line)
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(defface mood-line-modified
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'((t (:inherit (error))))
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"Face used for the 'modified' indicator symbol in the mode-line."
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@ -112,36 +125,35 @@
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;; Helper functions
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;;
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(defun mood-line-format (left right)
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(defun --string-trim-left (string)
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"Remove whitespace at the beginning of STRING."
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(if (string-match "\\`[ \t\n\r]+" string)
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(replace-match "" t t string)
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string))
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(defun --string-trim-right (string)
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"Remove whitespace at the end of STRING."
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(if (string-match "[ \t\n\r]+\\'" string)
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(replace-match "" t t string)
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string))
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(defun --string-trim (string)
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"Remove whitespace at the beginning and end of STRING."
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(--string-trim-left (--string-trim-right string)))
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(defun --format-mood-line (left right)
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"Return a string of `window-width' length containing LEFT and RIGHT, aligned respectively."
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(let ((reserve (length right)))
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(when (and (display-graphic-p) (eq 'right (get-scroll-bar-mode)))
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(setq reserve (- reserve 3)))
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(concat
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left
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" "
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(propertize " "
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'display `((space :align-to (- (+ right right-fringe right-margin) ,(+ reserve 0)))))
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right)))
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;; Define a helper function to determine whether or not the current window is active.
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(defsubst mood-line-is-active ()
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"Return \"t\" if the current window is active, \"nil\" if it is not."
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(eq (selected-window) mood-line--current-window))
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(concat left
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" "
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(propertize " "
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'display `((space :align-to (- right ,reserve))))
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right)))
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;;
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;; Update functions
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;;
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;; Window update function
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(defvar-local mood-line--current-window (frame-selected-window))
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(defun mood-line--update-selected-window (&rest _)
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"Update the `mood-line--current-window' variable."
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(when (frame-selected-window)
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(let ((win (frame-selected-window)))
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(unless (minibuffer-window-active-p win)
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(setq mood-line--current-window win)))))
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;; VC update function
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(defvar-local mood-line--vc-text nil)
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(defun mood-line--update-vc-segment (&rest _)
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@ -150,26 +162,25 @@
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(when (and vc-mode buffer-file-name)
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(let ((backend (vc-backend buffer-file-name))
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(state (vc-state buffer-file-name (vc-backend buffer-file-name))))
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(let ((face 'mode-line-inactive)
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(active (mood-line-is-active)))
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(let ((face 'mode-line-neutral))
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(concat (cond ((memq state '(edited added))
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(if active (setq face 'mood-line-status-info))
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(propertize "✚" 'face face))
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(setq face 'mood-line-status-info)
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(propertize "+ " 'face face))
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((eq state 'needs-merge)
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(if active (setq face 'mood-line-status-warning))
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(propertize "●" 'face face))
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(setq face 'mood-line-status-warning)
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(propertize "⟷ " 'face face))
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((eq state 'needs-update)
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(if active (setq face 'mood-line-status-warning))
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(propertize "⬆" 'face face))
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(setq face 'mood-line-status-warning)
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(propertize "↑ " 'face face))
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((memq state '(removed conflict unregistered))
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(if active (setq face 'mood-line-status-error))
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(propertize "✖" 'face face))
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(setq face 'mood-line-status-error)
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(propertize "✖ " 'face face))
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(t
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(if active (setq face 'mood-line-status-grayed-out))
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(propertize "✔" 'face face)))
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" "
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(setq face 'mood-line-status-neutral)
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(propertize "✔ " 'face face)))
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(propertize (substring vc-mode (+ (if (eq backend 'Hg) 2 3) 2))
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'face (if active face))
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'face face
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'mouse-face face)
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" "))))))
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;; Flycheck update function
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@ -181,73 +192,74 @@
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('finished (if flycheck-current-errors
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(let-alist (flycheck-count-errors flycheck-current-errors)
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(let ((sum (+ (or .error 0) (or .warning 0))))
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(propertize (concat "✚ Issues: "
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(propertize (concat "⚑ Issues: "
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(number-to-string sum)
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" ")
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'face (if .error
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'mood-line-status-error
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'mood-line-status-warning))))
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(propertize "✔ Good " 'face 'mood-line-status-success)))
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('running (propertize "● Checking " 'face 'mood-line-status-info))
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('no-checker "")
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('running (propertize "𝚫 Checking " 'face 'mood-line-status-info))
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('errored (propertize "✖ Error " 'face 'mood-line-status-error))
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('interrupted (propertize "⏸ Paused " 'face 'mood-line-status-grayed-out)))))
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('interrupted (propertize "⏸ Paused " 'face 'mood-line-status-neutral))
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('no-checker ""))))
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;;
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;; Segments
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;;
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(defun mood-line-segment-modified ()
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"Displays a color-coded buffer modification indicator in the mode-line."
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(propertize
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(if (and
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(buffer-modified-p)
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(not (string-match-p "\\*.*\\*" (buffer-name))))
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" ● "
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" ")
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'face 'mood-line-modified))
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"Displays a color-coded buffer modification/read-only indicator in the mode-line."
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(if (not (string-match-p "\\*.*\\*" (buffer-name)))
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(if (buffer-modified-p)
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(propertize "● " 'face 'mood-line-modified)
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(if buffer-read-only
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(propertize "■ " 'face 'mood-line-unimportant)
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" "))
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" "))
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(defun mood-line-segment-buffer-name ()
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"Displays the name of the current buffer in the mode-line."
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(concat (propertize "%b" 'face 'mode-line-buffer-id) " "))
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(propertize "%b " 'face 'mode-line-buffer-id))
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(defun mood-line-segment-anzu ()
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"Displays color-coded anzu status information in the mode-line (if available)."
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(when (and (boundp 'anzu--state) anzu--state)
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(concat (anzu--update-mode-line) " ")))
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(cond ((eq anzu--state 'replace-query)
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(format #("Replace: %d " 0 11 (face mood-line-status-warning)) anzu--cached-count))
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(anzu--overflow-p
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(format #("%d/%d+ " 0 3 (face mood-line-status-info) 3 6 (face mood-line-status-error)) anzu--current-position anzu--total-matched))
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(t
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(format #("%d/%d " 0 5 (face mood-line-status-info)) anzu--current-position anzu--total-matched)))))
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(defun mood-line-segment-multiple-cursors ()
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"Displays the number of active multiple-cursors in the mode-line (if available)."
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(when (and (boundp 'multiple-cursors-mode) multiple-cursors-mode)
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(concat "MC:"
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(format #("%d" 0 2 (face font-lock-warning-face)) (mc/num-cursors))
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" ")))
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(concat "MC"
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(format #("×%d " 0 3 (face mood-line-status-warning)) (mc/num-cursors)))))
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(defun mood-line-segment-position ()
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"Displays the current cursor position in the mode-line."
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(concat "%l:%c"
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(when mood-line-show-point
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(concat ":"
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(propertize (format "%d" (point)) 'face (if (mood-line-is-active)
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'mood-line-unimportant
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'mode-line-inactive))))
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" "
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(propertize "%p%%" 'face (if (mood-line-is-active)
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'mood-line-unimportant
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'mode-line-inactive))
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" "))
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(when mood-line-show-cursor-point (propertize (format ":%d" (point)) 'face))
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(propertize " %p%% " 'face 'mood-line-unimportant)))
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(defun mood-line-segment-eol ()
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"Displays the EOL style of the current buffer in the mode-line."
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(when mood-line-show-eol-style
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(pcase (coding-system-eol-type buffer-file-coding-system)
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(0 "LF ")
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(1 "CRLF ")
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(2 "CR "))))
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(defun mood-line-segment-encoding ()
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"Displays the encoding and EOL style of the buffer in the mode-line."
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(concat (pcase (coding-system-eol-type buffer-file-coding-system)
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(0 "LF ")
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(1 "CRLF ")
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(2 "CR "))
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(let ((sys (coding-system-plist buffer-file-coding-system)))
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(cond ((memq (plist-get sys :category) '(coding-category-undecided coding-category-utf-8))
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"UTF-8")
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(t (upcase (symbol-name (plist-get sys :name))))))
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" "))
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(when mood-line-show-encoding-information
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(concat (let ((sys (coding-system-plist buffer-file-coding-system)))
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(cond ((memq (plist-get sys :category) '(coding-category-undecided coding-category-utf-8))
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"UTF-8")
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(t (upcase (symbol-name (plist-get sys :name))))))
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" ")))
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(defun mood-line-segment-vc ()
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"Displays color-coded version control information in the mode-line."
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@ -255,25 +267,27 @@
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(defun mood-line-segment-major-mode ()
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"Displays the current major mode in the mode-line."
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(propertize "%m "
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'face (if (mood-line-is-active)
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'bold
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'mood-line-status-grayed-out)))
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(propertize "%m " 'face 'bold))
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(defun mood-line-segment-global-mode-string ()
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"Displays the current value of `global-mode-string' in the mode-line."
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(let ((global (format-mode-line global-mode-string 'mood-line-status-grayed-out)))
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(unless (string-empty-p global)
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(concat global " "))))
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(defun mood-line-segment-misc-info ()
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"Displays the current value of `mode-line-misc-info' in the mode-line."
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(let ((misc-info (format-mode-line mode-line-misc-info 'mood-line-unimportant)))
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(unless (string= misc-info "")
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(concat (--string-trim misc-info) " "))))
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(defun mood-line-segment-flycheck ()
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"Displays color-coded flycheck information in the mode-line (if available)."
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mood-line--flycheck-text)
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(defun mood-line-segment-flymake ()
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"Displays information about the current status of flymake in the mode-line (if available)."
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(when (and (boundp 'flymake-mode) flymake-mode)
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(concat (--string-trim (format-mode-line flymake--mode-line-format)) " ")))
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(defun mood-line-segment-process ()
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"Displays the current value of `mode-line-process' in the mode-line."
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(when mode-line-process
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(list mode-line-process " ")))
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(concat (--string-trim (format-mode-line mode-line-process)) " ")))
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;;
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;; Activation function
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@ -300,19 +314,14 @@
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(add-hook 'after-save-hook #'mood-line--update-vc-segment)
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(advice-add #'vc-refresh-state :after #'mood-line--update-vc-segment)
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;; Setup window update hooks
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(add-hook 'window-configuration-change-hook #'mood-line--update-selected-window)
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(add-hook 'focus-in-hook #'mood-line--update-selected-window)
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(advice-add #'handle-switch-frame :after #'mood-line--update-selected-window)
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(advice-add #'select-window :after #'mood-line--update-selected-window)
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;; Set the new mode-line-format
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(setq-default mode-line-format
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'((:eval
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(mood-line-format
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(--format-mood-line
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;; Left
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(format-mode-line
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'((:eval (mood-line-segment-modified))
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'(" "
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(:eval (mood-line-segment-modified))
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(:eval (mood-line-segment-buffer-name))
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(:eval (mood-line-segment-anzu))
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(:eval (mood-line-segment-multiple-cursors))
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@ -320,11 +329,13 @@
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;; Right
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(format-mode-line
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'((:eval (mood-line-segment-encoding))
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'((:eval (mood-line-segment-eol))
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(:eval (mood-line-segment-encoding))
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(:eval (mood-line-segment-vc))
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(:eval (mood-line-segment-major-mode))
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(:eval (mood-line-segment-global-mode-string))
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(:eval (mood-line-segment-misc-info))
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(:eval (mood-line-segment-flycheck))
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(:eval (mood-line-segment-flymake))
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(:eval (mood-line-segment-process))
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" ")))))))
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(progn
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(remove-hook 'after-save-hook #'mood-line--update-vc-segment)
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(advice-remove #'vc-refresh-state #'mood-line--update-vc-segment)
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;; Remove window update hooks
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(remove-hook 'window-configuration-change-hook #'mood-line--update-selected-window)
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(remove-hook 'focus-in-hook #'mood-line--update-selected-window)
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(advice-remove #'handle-switch-frame #'mood-line--update-selected-window)
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(advice-remove #'select-window #'mood-line--update-selected-window)
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;; Restore the original mode-line format
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(setq-default mode-line-format mood-line--default-mode-line))))
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Loading…
Reference in New Issue
Block a user