Optimize performance of updating buffer information (~2x faster).

This commit is contained in:
Vincent Zhang 2018-11-24 17:10:11 +08:00
parent 2b5a3b103e
commit d4973e2bc6

View file

@ -670,6 +670,75 @@ buffer where knowing the current project directory is important."
'face face)))) 'face face))))
;; ;;
(defvar-local doom-modeline--buffer-file-icon nil)
(defun doom-modeline-update-buffer-file-icon (&rest _)
"Update file icon in mode-line."
(setq doom-modeline--buffer-file-icon
(let ((icon (doom-modeline-icon-for-mode major-mode)))
(unless (symbolp icon)
(concat
(propertize icon
'help-echo (format "Major-mode: `%s'" major-mode)
'display '(raise 0)
'face (cond (buffer-read-only 'doom-modeline-warning)
((buffer-modified-p) 'doom-modeline-buffer-modified)
((and buffer-file-name
(not (file-exists-p buffer-file-name)))
'doom-modeline-urgent)
((buffer-narrowed-p) 'doom-modeline-warning)))
" ")))))
(add-hook 'find-file-hook 'doom-modeline-update-buffer-file-icon)
(add-hook 'after-save-hook 'doom-modeline-update-buffer-file-icon)
(add-hook 'after-revert-hook 'doom-modeline-update-buffer-file-icon)
;; (add-hook 'read-only-mode-hook 'doom-modeline-update-buffer-file-icon)
(add-hook 'after-change-major-mode-hook 'doom-modeline-update-buffer-file-icon)
(add-hook 'clone-indirect-buffer-hook 'doom-modeline-update-buffer-file-icon)
;; This hook will cause magit exception
;; (add-hook 'after-change-functions 'doom-modeline-update-buffer-file-icon)
(advice-add #'undo :after #'doom-modeline-update-buffer-file-icon)
(advice-add #'undo-tree-undo :after #'doom-modeline-update-buffer-file-icon)
;; (advice-add #'narrow-to-region :after #'doom-modeline-update-buffer-file-icon)
(defvar-local doom-modeline--buffer-file-state-icon nil)
(defun doom-modeline-update-buffer-file-state-icon (&rest _)
"Update the buffer or file state in mode-line."
(setq doom-modeline--buffer-file-state-icon
(let ((active (doom-modeline--active)))
(cond (buffer-read-only
(concat (doom-modeline-icon-octicon
"lock"
:face (if active 'doom-modeline-warning)
:v-adjust -0.05)
" "))
((buffer-modified-p)
(concat (doom-modeline-icon-faicon
"floppy-o"
:face (if active 'doom-modeline-buffer-modified)
:v-adjust -0.0575)
" "))
((and buffer-file-name
(not (file-exists-p buffer-file-name)))
(concat (doom-modeline-icon-octicon
"circle-slash"
:face (if active 'doom-modeline-urgent)
:v-adjust -0.05)
" "))
((buffer-narrowed-p)
(concat (doom-modeline-icon-octicon
"fold"
:display '(raise 0)
:face (if active 'doom-modeline-warning)
:v-adjus t -0.05)
" "))))))
(add-hook 'find-file-hook 'doom-modeline-update-buffer-file-state-icon)
(add-hook 'after-save-hook 'doom-modeline-update-buffer-file-state-icon)
(add-hook 'after-revert-hook 'doom-modeline-update-buffer-file-state-icon)
(add-hook 'read-only-mode-hook 'doom-modeline-update-buffer-file-state-icon)
(add-hook 'after-change-functions 'doom-modeline-update-buffer-file-state-icon)
(advice-add #'undo :after #'doom-modeline-update-buffer-file-state-icon)
(advice-add #'undo-tree-undo :after #'doom-modeline-update-buffer-file-state-icon)
(advice-add #'narrow-to-region :after #'doom-modeline-update-buffer-file-state-icon)
(defun doom-modeline-fix-buffer-file-name () (defun doom-modeline-fix-buffer-file-name ()
"Fix buffer file name in mode-line. "Fix buffer file name in mode-line.
@ -687,71 +756,32 @@ buffer where knowing the current project directory is important."
file-name file-name
(format "%s[%s]" file-name buffer-name)))) (format "%s[%s]" file-name buffer-name))))
(defvar-local doom-modeline--file-icon nil) (defvar-local doom-modeline--buffer-file-name nil)
(defun doom-modeline-update-file-icon () (defun doom-modeline-update-buffer-file-name (&rest _)
"Update file icon in mode-line." "Update buffer file name in mode-line."
(when doom-modeline-major-mode-icon (setq doom-modeline--buffer-file-name
(setq doom-modeline--file-icon (if buffer-file-name
(let ((icon (doom-modeline-icon-for-mode major-mode))) (doom-modeline-fix-buffer-file-name)
(unless (symbolp icon) (propertize "%b" 'face (if (doom-modeline--active) 'doom-modeline-buffer-file)))))
(concat (add-hook 'find-file-hook 'doom-modeline-update-buffer-file-name)
(propertize icon (add-hook 'after-save-hook 'doom-modeline-update-buffer-file-name)
'help-echo (format "Major-mode: `%s'" major-mode) (add-hook 'after-revert-hook 'doom-modeline-update-buffer-file-name)
'display '(raise 0) (add-hook 'after-change-functions 'doom-modeline-update-buffer-file-name)
'face (cond (buffer-read-only 'doom-modeline-warninng) (add-hook 'clone-indirect-buffer-hook 'doom-modeline-update-buffer-file-name)
((buffer-modified-p) 'doom-modeline-buffer-modified) (advice-add #'rename-buffer :after #'doom-modeline-update-buffer-file-name)
((and buffer-file-name (advice-add #'set-visited-file-name :after #'doom-modeline-update-buffer-file-name)
(not (file-exists-p buffer-file-name))) (advice-add #'select-window :after #'doom-modeline-update-buffer-file-name)
'doom-modeline-urgent) (advice-add #'undo :after #'doom-modeline-update-buffer-file-name)
((buffer-narrowed-p) 'doom-modeline-warning))) (advice-add #'undo-tree-undo :after #'doom-modeline-update-buffer-file-name)
" "))))))
(add-hook 'find-file-hook 'doom-modeline-update-file-icon)
(add-hook 'after-save-hook 'doom-modeline-update-file-icon)
(add-hook 'after-revert-hook 'doom-modeline-update-file-icon)
(add-hook 'after-change-major-mode-hook 'doom-modeline-update-file-icon)
(add-variable-watcher
'doom-modeline-major-mode-icon
(lambda (_sym _val op _where)
(when (eq op 'set)
(doom-modeline-update-file-icon))))
(doom-modeline-def-segment buffer-info (doom-modeline-def-segment buffer-info
"Combined information about the current buffer, including the current working "Combined information about the current buffer, including the current working
directory, the file name, and its state (modified, read-only or non-existent)." directory, the file name, and its state (modified, read-only or non-existent)."
(let ((active (doom-modeline--active))) (concat
(concat (or doom-modeline--buffer-file-state-icon (doom-modeline-update-buffer-file-state-icon))
(cond (buffer-read-only (when (and doom-modeline-icon doom-modeline-major-mode-icon)
(concat (doom-modeline-icon-octicon (or doom-modeline--buffer-file-icon (doom-modeline-update-buffer-file-icon)))
"lock" (or doom-modeline--buffer-file-name (doom-modeline-update-buffer-file-name))))
:face (if active 'doom-modeline-warning)
:v-adjust -0.05)
" "))
((buffer-modified-p)
(concat (doom-modeline-icon-faicon
"floppy-o"
:face (if active 'doom-modeline-buffer-modified)
:v-adjust -0.0575)
" "))
((and buffer-file-name
(not (file-exists-p buffer-file-name)))
(concat (doom-modeline-icon-octicon
"circle-slash"
:face (if active 'doom-modeline-urgent)
:v-adjust -0.05)
" "))
((buffer-narrowed-p)
(concat (doom-modeline-icon-octicon
"fold"
:face (if active 'doom-modeline-warning)
:v-adjus t -0.05)
" ")))
(or doom-modeline--file-icon (doom-modeline-update-file-icon))
(if buffer-file-name
(doom-modeline-fix-buffer-file-name)
(propertize "%b" 'face (if active 'doom-modeline-buffer-file))))))
(doom-modeline-def-segment buffer-info-simple (doom-modeline-def-segment buffer-info-simple
"Display only the current buffer's name, but with fontification." "Display only the current buffer's name, but with fontification."