;;; core-spacemacs-buffer.el --- Spacemacs Core File ;; ;; Copyright (c) 2012-2021 Sylvain Benner & Contributors ;; ;; Author: Sylvain Benner ;; URL: https://github.com/syl20bnr/spacemacs ;; ;; This file is not part of GNU Emacs. ;; ;;; License: GPLv3 ;; ;;; Commentary: ;; ;;; Code: (defconst spacemacs-buffer-version-info "0.300" "Current version used to display addition release information.") (defconst spacemacs-buffer-name "*spacemacs*" "The name of the spacemacs buffer.") (defconst spacemacs-buffer-logo-title "[S P A C E M A C S]" "The title displayed beneath the logo.") (defconst spacemacs-buffer-buttons-startup-lists-offset 25 "Relative position between the home buffer buttons and startup lists.") (defconst spacemacs-buffer--window-width 80 "Current width of the home buffer if responsive, 80 otherwise. See `dotspacemacs-startup-buffer-responsive'.") (defconst spacemacs-buffer--cache-file (expand-file-name (concat spacemacs-cache-directory "spacemacs-buffer.el")) "Cache file for various persistent data for the spacemacs startup buffer.") (defvar spacemacs-buffer-startup-lists-length 20 "Length used for startup lists with otherwise unspecified bounds. Set to nil for unbounded.") (defvar spacemacs-buffer-list-separator "\n\n") (defvar spacemacs-buffer--release-note-version nil "If nil the release note is displayed. If non nil it contains a version number, if the version number is lesser than the current version the release note it displayed") (defvar spacemacs-buffer--note-widgets nil "List of widgets used in currently inserted notes. Allows to keep track of widgets to delete when removing them.") (defvar spacemacs-buffer--current-note-type nil "Type of note currently displayed.") (defvar spacemacs-buffer--fresh-install (not (file-exists-p dotspacemacs-filepath)) "Non-nil if this Emacs instance if a fresh install.") (defvar spacemacs-buffer--buttons-position nil "Horizontal position of the home buffer buttons. Internal use, do not set this variable.") (defvar spacemacs-buffer-mode-map (let ((map (make-sparse-keymap))) (define-key map (kbd "0") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "1") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "2") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "3") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "4") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "5") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "6") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "7") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "8") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map (kbd "9") 'spacemacs-buffer/jump-to-number-startup-list-line) (define-key map [down-mouse-1] 'widget-button-click) (define-key map (kbd "RET") 'widget-button-press) (define-key map [tab] 'widget-forward) (define-key map (kbd "J") 'widget-forward) (define-key map (kbd "C-i") 'widget-forward) (define-key map [backtab] 'widget-backward) (define-key map (kbd "K") 'widget-backward) (define-key map (kbd "C-r") 'spacemacs-buffer/refresh) (define-key map "q" 'quit-window) map) "Keymap for spacemacs buffer mode.") (with-eval-after-load 'evil (evil-make-overriding-map spacemacs-buffer-mode-map 'motion)) (define-derived-mode spacemacs-buffer-mode fundamental-mode "Spacemacs buffer" "Spacemacs major mode for startup screen." :group 'spacemacs :syntax-table nil :abbrev-table nil (page-break-lines-mode) (setq buffer-read-only t truncate-lines t) ;; needed to make tab work correctly in terminal (evil-define-key 'motion spacemacs-buffer-mode-map (kbd "C-i") 'widget-forward) ;; motion state since this is a special mode (evil-set-initial-state 'spacemacs-buffer-mode 'motion)) (defun spacemacs-buffer//insert-ascii-banner-centered (file) "Insert the ascii banner contain in file and center it in the window. FILE: the path to the file containing the banner." (insert (with-temp-buffer (insert-file-contents file) (let ((banner-width 0)) (while (not (eobp)) (let ((line-length (- (line-end-position) (line-beginning-position)))) (if (< banner-width line-length) (setq banner-width line-length))) (forward-line 1)) (goto-char 0) (let ((margin (max 0 (floor (/ (- spacemacs-buffer--window-width banner-width) 2))))) (while (not (eobp)) (insert (make-string margin ?\s)) (forward-line 1))) (insert "\n")) (buffer-string)))) (defun spacemacs-buffer/insert-banner-and-buttons () "Choose a banner according to `dotspacemacs-startup-banner'and insert it. in spacemacs buffer along with quick buttons underneath. Easter egg: Doge special text banner can be reachable via `999', `doge' or `random*'. Doge special text banner for dark themes can be reachable via `997', `doge-inverted' or `random*'. Cate special text banner can de reachable via `998', `cat' or `random*'. `random' ignore special banners whereas `random*' does not." (let ((banner (spacemacs-buffer//choose-banner)) (buffer-read-only nil)) (progn (when banner (spacemacs-buffer/message (format "Banner: %s" banner)) (if (image-type-available-p (intern (file-name-extension banner))) (spacemacs-buffer//insert-image-banner banner) (spacemacs-buffer//insert-ascii-banner-centered banner))) (spacemacs-buffer//insert-buttons) (spacemacs//redisplay)))) (defun spacemacs-buffer/display-startup-note () "Decide of the startup note and display it if relevant." (when (file-exists-p spacemacs-buffer--cache-file) (load spacemacs-buffer--cache-file nil (not init-file-debug))) (cond (spacemacs-buffer--fresh-install ;; we assume the user is new to spacemacs and open the quickhelp (spacemacs-buffer/toggle-note 'quickhelp) (setq spacemacs-buffer--release-note-version spacemacs-version) (spacemacs/dump-vars-to-file '(spacemacs-buffer--release-note-version) spacemacs-buffer--cache-file)) ((or (not spacemacs-buffer--release-note-version) (version< spacemacs-buffer--release-note-version spacemacs-version)) ;; check the variable spacemacs-buffer--release-note-version ;; to decide whether we show the release note (spacemacs-buffer/toggle-note 'release-note))) (spacemacs//redisplay)) (defun spacemacs-buffer//choose-banner () "Return the full path of a banner based on the dotfile value." (when dotspacemacs-startup-banner (cond ((eq 'official dotspacemacs-startup-banner) (if (and (display-graphic-p) (image-type-available-p 'png)) spacemacs-banner-official-png (spacemacs-buffer//get-banner-path 1))) ((eq 'random dotspacemacs-startup-banner) (spacemacs-buffer//choose-random-text-banner)) ((eq 'random* dotspacemacs-startup-banner) (spacemacs-buffer//choose-random-text-banner t)) ((eq 'doge dotspacemacs-startup-banner) (spacemacs-buffer//get-banner-path 999)) ((eq 'doge-inverted dotspacemacs-startup-banner) (spacemacs-buffer//get-banner-path 997)) ((eq 'cat dotspacemacs-startup-banner) (spacemacs-buffer//get-banner-path 998)) ((integerp dotspacemacs-startup-banner) (spacemacs-buffer//get-banner-path dotspacemacs-startup-banner)) ((and dotspacemacs-startup-banner (image-type-available-p (intern (file-name-extension dotspacemacs-startup-banner))) (display-graphic-p)) (if (file-exists-p dotspacemacs-startup-banner) dotspacemacs-startup-banner (spacemacs-buffer/warning (format "could not find banner %s" dotspacemacs-startup-banner)) (spacemacs-buffer//get-banner-path 1))) (t (spacemacs-buffer//get-banner-path 1))))) (defvar spacemacs-buffer--random-banner nil "The random banner chosen.") (defun spacemacs-buffer//choose-random-text-banner (&optional all) "Return the full path of a banner chosen randomly. If ALL is non-nil then truly all banners can be selected." (setq spacemacs-buffer--random-banner (or spacemacs-buffer--random-banner (let* ((files (directory-files spacemacs-banner-directory t ".*\.txt")) (count (length files)) ;; -2 to remove the two last ones (easter eggs) (choice (random (- count (if all 0 2))))) (nth choice files))))) (defun spacemacs-buffer//get-banner-path (index) "Return the full path to banner with index INDEX." (concat spacemacs-banner-directory (format "%03d-banner.txt" index))) (defun spacemacs-buffer//insert-image-banner (banner) "Display an image banner. BANNER: the path to an ascii banner file." (when (file-exists-p banner) (let* ((title spacemacs-buffer-logo-title) (spec (create-image banner)) (size (image-size spec)) (width (car size)) (left-margin (max 0 (floor (- spacemacs-buffer--window-width width) 2)))) (insert (make-string left-margin ?\s)) (insert-image spec) (insert "\n\n") (insert (make-string (max 0 (floor (/ (- spacemacs-buffer--window-width (+ (length title) 1)) 2))) ?\s)) (insert (format "%s\n\n" title))))) (defun spacemacs-buffer//insert-version () "Insert the current version of Spacemacs and Emacs. Right justified, based on the Spacemacs buffers window width." (with-current-buffer (get-buffer-create spacemacs-buffer-name) (let ((version (format "%s@%s (%s)" spacemacs-version emacs-version dotspacemacs-distribution)) (buffer-read-only nil)) (insert (format (format "%%%ds" (if (display-graphic-p) spacemacs-buffer--window-width ;; terminal needs one less char (1- spacemacs-buffer--window-width))) version)) (insert "\n\n")))) (defun spacemacs-buffer//insert-footer () "Insert the footer of the home buffer." (save-excursion (let* ((badge-path spacemacs-badge-official-png) (badge (when (and (display-graphic-p) (image-type-available-p (intern (file-name-extension badge-path)))) (create-image badge-path))) (badge-size (when badge (car (image-size badge)))) (heart-path spacemacs-purple-heart-png) (heart (when (and (display-graphic-p) (image-type-available-p (intern (file-name-extension badge-path)))) (create-image heart-path))) (heart-size (when heart (car (image-size heart)))) (build-lhs "Made with ") (build-rhs " by the community") (buffer-read-only nil)) (when (or badge heart) (goto-char (point-max)) (spacemacs-buffer/insert-page-break) (insert "\n") (when badge (insert-image badge) (spacemacs-buffer//center-line badge-size)) (when heart (when badge (insert "\n\n")) (insert build-lhs) (insert-image heart) (insert build-rhs) (spacemacs-buffer//center-line (+ (length build-lhs) heart-size (length build-rhs))) (insert "\n")))))) (defmacro spacemacs-buffer||notes-adapt-caption-to-width (caption caption-length width) "Adapt caption string's length to the note's frame current width. For internal use in `spacemacs-buffer//notes-render-framed-text'. CAPTION: string to be encrusted onto the note's frame CAPTION-LENGTH: length of the caption WIDTH: current external width of the note's frame." `(when (> ,caption-length (- ,width 6)) ; minimum frame width is 6 (if (> ,width 8) (setq ,caption (concat (substring ,caption 0 (min -3 (- (- ,width 6 3) ,caption-length))) "...")) (setq ,caption nil ,caption-length 0)))) (defun spacemacs-buffer//notes-render-framed-text (content &optional topcaption botcaption hpadding max-width min-width) "Return a formatted string framed with curved lines. The width of the created frame is the width of the content, unless it does not satisfy max-width or min-width. Note that max-width can be limited by the window's width. CONTENT can be a text or a filepath. TOPCAPTION is a text to be encrusted at the top of the frame. BOTCAPTION is a text to be encrusted at the bottom of the frame. HPADDING is the horizontal spacing between the text and the frame. The vertical spacing is always one line. MAX-WIDTH is the maximum width of the frame, frame included. When `dotspacemacs-startup-buffer-responsive' is t, MAX-WIDTH will be limited to the window's width. MAX-WIDTH takes precedence over MIN-WIDTH. MIN-WIDTH is the minimal width of the frame, frame included. The frame will not shrink any thinner than MIN-WIDTH characters unless MAX-WIDTH says otherwise." (with-temp-buffer (if (not (file-exists-p content)) (insert content) (insert-file-contents content) (goto-char (point-max)) (when (eq ?\n (char-before)) ;; remove additional newline at eof (delete-char -1))) (let* ((hpadding (if hpadding hpadding 1)) (text-width (spacemacs-buffer//get-buffer-width)) (width (+ 2 (* 2 hpadding) text-width)) (fill-column text-width) (sentence-end-double-space nil) ; needed by fill-region (paragraph-start "\f\\|[ \t]*$\\|[ \t]*[-+*] \\|[ \t]*[0-9]+[.)] ") (topcaption-length (if topcaption (length topcaption) 0)) (botcaption-length (if botcaption (length botcaption) 0))) (setq max-width (or max-width width) min-width (or min-width 1) max-width (if (< max-width min-width) min-width max-width) max-width (if (> max-width spacemacs-buffer--window-width) spacemacs-buffer--window-width max-width)) (when (< width min-width) (setq width min-width fill-column (max 0 (- min-width 2 (* hpadding 2))))) (when (> width max-width) (setq width max-width fill-column (max 0 (- max-width 2 (* hpadding 2))))) (spacemacs-buffer||notes-adapt-caption-to-width topcaption topcaption-length width) (spacemacs-buffer||notes-adapt-caption-to-width botcaption botcaption-length width) (fill-region (point-min) (point-max) nil nil) (concat "╭─" (when topcaption (propertize (concat " " topcaption " ") 'face '(:weight bold))) (make-string (max 0 (- width (if topcaption 6 4) topcaption-length)) ?─) "─╮\n" (spacemacs-buffer//notes-render-framed-line "" width hpadding) (mapconcat (lambda (line) (spacemacs-buffer//notes-render-framed-line line width hpadding)) (split-string (buffer-string) "\n" nil) "") (spacemacs-buffer//notes-render-framed-line "" width hpadding) "╰─" (when botcaption (propertize (concat " " botcaption " ") 'face '(:weight bold))) (make-string (max 0 (- width (if botcaption 6 4) botcaption-length)) ?─) "─╯" (when botcaption "\n"))))) (defun spacemacs-buffer//notes-render-framed-line (line width hpadding) "Return a formatted LINE with borders of a frame on each side. WIDTH: external width of the frame. LINE should be shorter than WIDTH. HPADDING: horizontal padding on both sides of the framed string." (let ((fill (max 0 (- width 2 hpadding (length line))))) (concat "│" (make-string hpadding ?\s) line (make-string fill ?\s) "│\n"))) (defun spacemacs-buffer//notes-insert-note (file topcaption botcaption &optional additional-widgets) "Insert the release note just under the banner. FILE: the file that contains the content to show. TOPCAPTION: the title of the note. BOTCAPTION: a text to be encrusted at the bottom of the frame. ADDITIONAL-WIDGETS: a function for inserting a widget under the frame." (save-excursion (goto-char (point-min)) (search-forward "Search in Spacemacs\]") ; TODO: this is dirty (forward-line) (let* ((buffer-read-only nil) (note (concat "\n" (spacemacs-buffer//notes-render-framed-text file topcaption botcaption 2 nil 80)))) (save-restriction (narrow-to-region (point) (point)) (add-to-list 'spacemacs-buffer--note-widgets (widget-create 'text :format "%v" note)) (let* ((width (spacemacs-buffer//get-buffer-width)) (padding (max 0 (floor (/ (- spacemacs-buffer--window-width width) 2))))) (goto-char (point-min)) (while (not (eobp)) (beginning-of-line) (insert (make-string padding ?\s)) (forward-line)))) (save-excursion (while (re-search-backward "\\[\\[\\(.*\\)\\]\\]" nil t) (make-text-button (match-beginning 1) (match-end 1) 'type 'help-url 'help-args (list (match-string 1))))) (funcall additional-widgets) (spacemacs-buffer//center-line) (delete-trailing-whitespace (line-beginning-position) (line-end-position))))) (defun spacemacs-buffer//notes-insert-quickhelp () "Insert quickhelp." (let ((widget-func (lambda () (add-to-list 'spacemacs-buffer--note-widgets (widget-create 'push-button :tag (propertize "Evil Tutorial" 'face 'font-lock-keyword-face) :help-echo "Teach you how to use Vim basics." :action (lambda (&rest ignore) (call-interactively #'evil-tutor-start)) :mouse-face 'highlight :follow-link "\C-m")) (widget-insert " ") (add-to-list 'spacemacs-buffer--note-widgets (widget-create 'push-button :tag (propertize "Emacs Tutorial" 'face 'font-lock-keyword-face) :help-echo "Teach you how to use Emacs basics." :action (lambda (&rest ignore) (call-interactively #'help-with-tutorial)) :mouse-face 'highlight :follow-link "\C-m")) (widget-insert " ") (add-to-list 'spacemacs-buffer--note-widgets (widget-create 'push-button :tag (propertize "Vim Migration Guide" 'face 'font-lock-keyword-face) :help-echo "Documentation for former vim users." :action (lambda (&rest ignore) (spacemacs/view-org-file (concat spacemacs-docs-directory "VIMUSERS.org") "^" 'all)) :mouse-face 'highlight :follow-link "\C-m"))))) (spacemacs-buffer//notes-insert-note (concat spacemacs-info-directory "quickhelp.txt") "Quick Help" nil widget-func))) (defun spacemacs-buffer//notes-insert-release-note () "Insert release note." (let ((widget-func (lambda () (add-to-list 'spacemacs-buffer--note-widgets (widget-create 'push-button :tag (propertize "Click here for full change log" 'face 'font-lock-warning-face) :help-echo "Open the full change log." :action (lambda (&rest ignore) (funcall 'spacemacs/view-org-file (concat spacemacs-start-directory "CHANGELOG.org") (format "Release %s.x" spacemacs-buffer-version-info) 'subtree)) :mouse-face 'highlight :follow-link "\C-m"))))) (spacemacs-buffer//notes-insert-note (concat spacemacs-release-notes-directory spacemacs-buffer-version-info ".txt") (format "Important Notes (Release %s.x)" spacemacs-buffer-version-info) "Update your dotfile (SPC f e D) and\ packages after every update" widget-func)) (setq spacemacs-buffer--release-note-version nil) (spacemacs/dump-vars-to-file '(spacemacs-buffer--release-note-version) spacemacs-buffer--cache-file)) (defun spacemacs-buffer//notes-clear-notes-and-widgets () "Remove existing note widgets if exists." (when spacemacs-buffer--note-widgets (mapc 'widget-delete spacemacs-buffer--note-widgets) (setq spacemacs-buffer--note-widgets nil) (setq spacemacs-buffer--release-note-version spacemacs-version) (spacemacs/dump-vars-to-file '(spacemacs-buffer--release-note-version) spacemacs-buffer--cache-file))) (defun spacemacs-buffer//notes-redisplay-current-note () "Delete and rediplay the currently displayed note." (spacemacs-buffer//notes-clear-notes-and-widgets) (let ((type spacemacs-buffer--current-note-type)) (cond ((eq type 'quickhelp) (spacemacs-buffer//notes-insert-quickhelp)) ((eq type 'release-note) (spacemacs-buffer//notes-insert-release-note)) (t)))) (defun spacemacs-buffer/toggle-note (type) "Toggle the displayed note based on TYPE. If TYPE is nil or unknown, just remove the currently displayed note. Currently allowed types are `quickhelp' and `release-note'" (spacemacs-buffer//notes-clear-notes-and-widgets) (if (or (eq spacemacs-buffer--current-note-type nil) (not (eq spacemacs-buffer--current-note-type type))) (progn (setq spacemacs-buffer--current-note-type type) (cond ((eq type 'quickhelp) (spacemacs-buffer//notes-insert-quickhelp)) ((eq type 'release-note) (spacemacs-buffer//notes-insert-release-note)) (t (setq spacemacs-buffer--current-note-type nil) (message "Unknown note type: %s" 'type)))) (setq spacemacs-buffer--current-note-type nil))) (defun spacemacs-buffer/set-mode-line (format &optional redisplay) "Set mode-line format for spacemacs buffer. FORMAT: the `mode-line-format' variable Emacs will use to build the mode-line. If REDISPLAY is non-nil then force a redisplay as well" (with-current-buffer (get-buffer-create spacemacs-buffer-name) (setq mode-line-format format)) (when redisplay (spacemacs//redisplay))) (defun spacemacs-buffer/message (msg &rest args) "Display MSG in *Messages* prepended with '(Spacemacs)'. The message is displayed only if `init-file-debug' is non nil. ARGS: format string arguments." (when init-file-debug (message "(Spacemacs) %s" (apply 'format msg args)))) (defvar spacemacs-buffer--errors nil "List of errors during startup.") (defun spacemacs-buffer/error (msg &rest args) "Display MSG as an Error message in `*Messages*' buffer. ARGS: format string arguments." (let ((msg (apply 'format msg args))) (message "(Spacemacs) Error: %s" msg) (when message-log-max (add-to-list 'spacemacs-buffer--errors msg 'append)))) (defvar spacemacs-buffer--warnings nil "List of warnings during startup.") (defun spacemacs-buffer/warning (msg &rest args) "Display MSG as a warning message but in buffer `*Messages*'. ARGS: format string arguments." (let ((msg (apply 'format msg args))) (message "(Spacemacs) Warning: %s" msg) (when message-log-max (add-to-list 'spacemacs-buffer--warnings msg 'append)))) (defun spacemacs-buffer/insert-page-break () "Insert a page break line in spacemacs buffer." (spacemacs-buffer/append "\n \n")) (defun spacemacs-buffer/append (msg &optional messagebuf) "Append MSG to spacemacs buffer. If MESSAGEBUF is not nil then MSG is also written in message buffer." (with-current-buffer (get-buffer-create spacemacs-buffer-name) (goto-char (point-max)) (let ((buffer-read-only nil)) (insert msg) (when messagebuf (message "(Spacemacs) %s" msg))))) (defun spacemacs-buffer/replace-last-line (msg &optional messagebuf) "Replace the last line of the spacemacs buffer with MSG. If MESSAGEBUF is not nil then MSG is also written in message buffer." (with-current-buffer (get-buffer-create spacemacs-buffer-name) (goto-char (point-max)) (let ((buffer-read-only nil)) (delete-region (line-beginning-position) (point-max)) (insert msg) (when messagebuf (message "(Spacemacs) %s" msg))))) (defun spacemacs-buffer//startup-list-jump-func-name (str) "Given a string, return a spacemacs-buffer function name. Given: Return: \"[?]\" \"spacemacs-buffer/jump-to-[?]\" \"Recent Files:\" \"spacemacs-buffer/jump-to-recent-files\"" (let ((s (downcase str))) ;; remove last char if it's a colon (when (string-match ":$" s) (setq s (substring s nil (1- (length s))))) ;; replace any spaces with a dash (setq s (replace-regexp-in-string " " "-" s)) (concat "spacemacs-buffer/jump-to-" s))) (defmacro spacemacs-buffer||add-shortcut (shortcut-char search-label &optional no-next-line) "Add a single-key keybinding for quick navigation in the home buffer. Navigation is done by searching for a specific word in the buffer. SHORTCUT-CHAR: the key that the user will have to press. SEARCH-LABEL: the word the cursor will be brought under (or on). NO-NEXT-LINE: if nil the cursor is brought under the searched word. Define a named function: spacemacs-buffer/jump-to-... for the shortcut. So that a descriptive name is shown, in for example the view-lossage (C-h l) buffer: r ;; spacemacs-buffer/jump-to-recent-files p ;; spacemacs-buffer/jump-to-projects instead of: r ;; anonymous-command p ;; anonymous-command" (let* ((func-name (spacemacs-buffer//startup-list-jump-func-name search-label)) (func-name-symbol (intern func-name))) (eval `(defun ,func-name-symbol () (interactive) (unless (search-forward ,search-label (point-max) t) (search-backward ,search-label (point-min) t)) ,@(unless no-next-line '((forward-line 1))) (back-to-indentation))) `(define-key spacemacs-buffer-mode-map ,shortcut-char ',func-name-symbol))) (defun spacemacs-buffer//center-line (&optional real-width) "When point is at the end of a line, center it. REAL-WIDTH: the real width of the line. If the line contains an image, the size of that image will be considered to be 1 by the calculation method used in this function. As a consequence, the caller must calculate himself the correct length of the line taking into account the images he inserted in it." (let* ((width (or real-width (current-column))) (margin (max 0 (floor (/ (- spacemacs-buffer--window-width width) 2))))) (beginning-of-line) (insert (make-string margin ?\s)) (end-of-line))) (defun spacemacs-buffer//insert-buttons () "Create and insert the interactive buttons under Spacemacs banner." (goto-char (point-max)) (spacemacs-buffer||add-shortcut "m" "[?]" t) (widget-create 'url-link :tag (propertize "?" 'face 'font-lock-doc-face) :help-echo "Open the quickhelp." :action (lambda (&rest ignore) (spacemacs-buffer/toggle-note 'quickhelp)) :mouse-face 'highlight :follow-link "\C-m") (insert " ") (widget-create 'url-link :tag (propertize "Homepage" 'face 'font-lock-keyword-face) :help-echo "Open the Spacemacs GitHub page in your browser." :mouse-face 'highlight :follow-link "\C-m" "http://spacemacs.org") (insert " ") (widget-create 'url-link :tag (propertize "Documentation" 'face 'font-lock-keyword-face) :help-echo "Open the Spacemacs documentation in your browser." :mouse-face 'highlight :follow-link "\C-m" "http://spacemacs.org/doc/DOCUMENTATION.html") (insert " ") (widget-create 'url-link :tag (propertize "Gitter Chat" 'face 'font-lock-keyword-face) :help-echo "Ask questions and chat with fellow users in our chat room." :mouse-face 'highlight :follow-link "\C-m" "https://gitter.im/syl20bnr/spacemacs") (insert " ") (widget-create 'push-button :help-echo "Update Spacemacs core and layers." :action (lambda (&rest ignore) (spacemacs/switch-to-version)) :mouse-face 'highlight :follow-link "\C-m" (propertize "Update Spacemacs" 'face 'font-lock-keyword-face)) (let ((len (- (line-end-position) (line-beginning-position)))) (spacemacs-buffer//center-line) (setq spacemacs-buffer--buttons-position (- (line-end-position) (line-beginning-position) len))) (insert "\n") (widget-create 'push-button :help-echo "Update all ELPA packages to the latest versions." :action (lambda (&rest ignore) (configuration-layer/update-packages)) :mouse-face 'highlight :follow-link "\C-m" (propertize "Update Packages" 'face 'font-lock-keyword-face)) (insert " ") (widget-create 'push-button :help-echo "Rollback ELPA package updates if something got borked." :action (lambda (&rest ignore) (call-interactively 'configuration-layer/rollback)) :mouse-face 'highlight :follow-link "\C-m" (propertize "Rollback Package Update" 'face 'font-lock-keyword-face)) (spacemacs-buffer//center-line) (insert "\n") (widget-create 'push-button :tag (propertize "Release Notes" 'face 'font-lock-preprocessor-face) :help-echo "Hide or show the Changelog" :action (lambda (&rest ignore) (spacemacs-buffer/toggle-note 'release-note)) :mouse-face 'highlight :follow-link "\C-m") (insert " ") (widget-create 'url-link :tag (propertize "Search in Spacemacs" 'face 'font-lock-function-name-face) :help-echo "Search Spacemacs contents." :action (lambda (&rest ignore) (let ((comp-frontend (cond ((configuration-layer/layer-used-p 'helm) 'helm-spacemacs-help) ((configuration-layer/layer-used-p 'ivy) 'ivy-spacemacs-help)))) (call-interactively comp-frontend))) :mouse-face 'highlight :follow-link "\C-m") (spacemacs-buffer//center-line) (insert "\n")) (defun spacemacs-buffer//insert-string-list (list-display-name list) "Insert a non-interactive startup list in the home buffer. LIST-DISPLAY-NAME: the displayed title of the list. LIST: a list of strings displayed as entries." (when (car list) (insert list-display-name) (mapc (lambda (el) (insert "\n" (with-temp-buffer (insert el) (fill-paragraph) (goto-char (point-min)) (insert " - ") (while (= 0 (forward-line)) (insert " ")) (buffer-string)))) list))) (defun spacemacs-buffer//insert-file-list (list-display-name list) "Insert an interactive list of files in the home buffer. LIST-DISPLAY-NAME: the displayed title of the list. LIST: a list of string pathnames made interactive in this function. If LIST-DISPLAY-NAME is \"Recent Files:\": prepend each list item with a number starting at: 1 The numbers indicate that the file can be opened, by pressing its number key." (when (car list) (insert list-display-name) (mapc (lambda (el) (insert "\n ") (let* ((button-text-prefix (format "%2s" (number-to-string spacemacs-buffer--startup-list-nr))) (button-text (concat button-text-prefix " " (abbreviate-file-name el)))) (widget-create 'push-button :action `(lambda (&rest ignore) (find-file-existing ,el)) :mouse-face 'highlight :follow-link "\C-m" :button-prefix "" :button-suffix "" :format "%[%t%]" button-text)) (setq spacemacs-buffer--startup-list-nr (1+ spacemacs-buffer--startup-list-nr))) list))) (defun spacemacs-buffer//insert-files-by-dir-list (list-display-name grouped-list) "Insert an interactive grouped list of files in the home buffer. LIST-DISPLAY-NAME: the displayed title of the list. GROUPED-LIST: a list of string pathnames made interactive in this function." (when (car grouped-list) (insert list-display-name) (mapc (lambda (group) (insert "\n ") (let* ((button-text-prefix (format "%2s" (number-to-string spacemacs-buffer--startup-list-nr))) (button-text-project (concat button-text-prefix " " (abbreviate-file-name (car group))))) (widget-create 'push-button :action `(lambda (&rest ignore) (find-file-existing ,(car group))) :mouse-face 'highlight :follow-link "\C-m" :button-prefix "" :button-suffix "" :format "%[%t%]" button-text-project) (setq spacemacs-buffer--startup-list-nr (1+ spacemacs-buffer--startup-list-nr)) (mapc (lambda (el) (let* ((button-text-prefix (format "%2s" (number-to-string spacemacs-buffer--startup-list-nr))) (button-text-filename (concat button-text-prefix " " (abbreviate-file-name el)))) (insert "\n ") (widget-create 'push-button :action `(lambda (&rest ignore) (find-file-existing (concat ,(car group) ,el))) :mouse-face 'highlight :follow-link "\C-m" :button-prefix "" :button-suffix "" :format "%[%t%]" button-text-filename)) (setq spacemacs-buffer--startup-list-nr (1+ spacemacs-buffer--startup-list-nr))) (cdr group)))) grouped-list))) (defun spacemacs-buffer//insert-bookmark-list (list-display-name list) "Insert an interactive list of bookmarks entries (if any) in the home buffer. LIST-DISPLAY-NAME: the displayed title of the list. LIST: a list of string bookmark names made interactive in this function." (when (car list) (insert list-display-name) (mapc (lambda (el) (insert "\n ") (let* ((filename (bookmark-get-filename el)) (button-text-prefix (format "%2s" (number-to-string spacemacs-buffer--startup-list-nr))) (button-text (concat button-text-prefix " " (if filename (format "%s - %s" el (abbreviate-file-name filename)) (format "%s" el))))) (widget-create 'push-button :action `(lambda (&rest ignore) (bookmark-jump ,el)) :mouse-face 'highlight :follow-link "\C-m" :button-prefix "" :button-suffix "" :format "%[%t%]" button-text)) (setq spacemacs-buffer--startup-list-nr (1+ spacemacs-buffer--startup-list-nr))) list))) (defun spacemacs-buffer//get-org-items (types) "Make a list of agenda file items for today of kind types. TYPES: list of `org-mode' types to fetch." (require 'org-agenda) (let ((date (calendar-gregorian-from-absolute (org-today)))) (apply #'append (cl-loop for file in (org-agenda-files nil 'ifmode) collect (spacemacs-buffer//make-org-items file (apply 'org-agenda-get-day-entries file date types)))))) (defun spacemacs-buffer//agenda-list () "Return today's agenda." (require 'org-agenda) (spacemacs-buffer//get-org-items org-agenda-entry-types)) (defun spacemacs-buffer//todo-list () "Return current todos." (require 'org-agenda) (spacemacs-buffer//get-org-items '(:todo))) (defun spacemacs-buffer//make-org-items (file items) "Make a spacemacs-buffer org item list. FILE: file name. ITEMS:" (cl-loop for item in items collect (spacemacs-buffer//make-org-item file item))) (defun spacemacs-buffer//make-org-item (file item) "Make a spacemacs-buffer version of an org item. FILE: file name. ITEM:" (list (cons "text" (get-text-property 0 'txt item)) (cons "file" file) (cons "pos" (marker-position (get-text-property 0 'org-marker item))) (cons "time" (get-text-property 0 'time item)))) (defun spacemacs-buffer//org-jump (el) "Action executed when using an item in the home buffer's todo list. EL: `org-agenda' element to jump to." (require 'org-agenda) (find-file-other-window (cdr (assoc "file" el))) (widen) (goto-char (cdr (assoc "pos" el))) (when (derived-mode-p 'org-mode) (org-show-context 'agenda) (save-excursion (and (outline-next-heading) (org-flag-heading nil))) ; show the next heading (when (outline-invisible-p) (outline-show-entry)) ; display invisible text (recenter (/ (window-height) 2)) (org-back-to-heading t) (if (re-search-forward org-complex-heading-regexp nil t) (goto-char (match-beginning 4)))) (run-hooks 'org-agenda-after-show-hook)) (defun spacemacs-buffer//insert-todo-list (list-display-name list) "Insert an interactive todo list of `org-agenda' entries in the home buffer. LIST-DISPLAY-NAME: the displayed title of the list. LIST: list of `org-agenda' entries in the todo list." (when (car list) (insert list-display-name) (setq list (sort list (lambda (a b) (cond ((eq "" (cdr (assoc "time" b))) t) ((eq "" (cdr (assoc "time" a))) nil) (t (string< (cdr (assoc "time" a)) (cdr (assoc "time" b)))))))) (mapc (lambda (el) (insert "\n ") (let* ((button-text-prefix (format "%2s" (number-to-string spacemacs-buffer--startup-list-nr))) (button-text (concat button-text-prefix " " (format "%s %s %s" (let ((filename (cdr (assoc "file" el)))) (if dotspacemacs-home-shorten-agenda-source (file-name-nondirectory filename) (abbreviate-file-name filename))) (if (not (eq "" (cdr (assoc "time" el)))) (format "- %s -" (cdr (assoc "time" el))) "-") (cdr (assoc "text" el)))))) (widget-create 'push-button :action `(lambda (&rest ignore) (spacemacs-buffer//org-jump ',el)) :mouse-face 'highlight :follow-link "\C-m" :button-prefix "" :button-suffix "" :format "%[%t%]" button-text)) (setq spacemacs-buffer--startup-list-nr (1+ spacemacs-buffer--startup-list-nr))) list))) (defun spacemacs-buffer//associate-to-project (recent-file by-project) (dolist (x by-project) (when (string-prefix-p (car x) recent-file) (setcdr x (cons (string-remove-prefix (car x) recent-file) (cdr x)))))) (defun spacemacs-buffer//recent-files-by-project () (let ((by-project (mapcar (lambda (p) (cons (expand-file-name p) nil)) (projectile-relevant-known-projects)))) (dolist (recent-file recentf-list by-project) (spacemacs-buffer//associate-to-project recent-file by-project)))) (defun spacemacs//subseq (seq start end) "Adapted version of `cl-subseq'. Use `cl-subseq', but accounting for end points greater than the size of the list. Return entire list if end is omitted. SEQ, START and END are the same arguments as for `cl-subseq'" (let ((len (length seq))) (cl-subseq seq start (and (number-or-marker-p end) (min len end))))) (defun spacemacs-buffer//insert-errors () (when (spacemacs-buffer//insert-string-list "Errors:" spacemacs-buffer--errors) (spacemacs-buffer||add-shortcut "e" "Errors:") (insert spacemacs-buffer-list-separator))) (defun spacemacs-buffer//insert-warnings () (when (spacemacs-buffer//insert-string-list "Warnings:" spacemacs-buffer--warnings) (spacemacs-buffer||add-shortcut "w" "Warnings:") (insert spacemacs-buffer-list-separator))) (defun spacemacs-buffer//insert-recent-files (list-size) (unless recentf-mode (recentf-mode)) (setq spacemacs-buffer//recent-files-list (spacemacs//subseq recentf-list 0 list-size)) (when (spacemacs-buffer//insert-file-list "Recent Files:" spacemacs-buffer//recent-files-list) (spacemacs-buffer||add-shortcut "r" "Recent Files:")) (insert spacemacs-buffer-list-separator)) (defun spacemacs-buffer//insert-recent-files-by-project (list-size) (unless recentf-mode (recentf-mode)) (unless projectile-mode (projectile-mode)) (when (spacemacs-buffer//insert-files-by-dir-list "Recent Files by Project:" (mapcar (lambda (group) (cons (car group) (spacemacs//subseq (reverse (cdr group)) 0 (cdr list-size)))) (spacemacs//subseq (spacemacs-buffer//recent-files-by-project) 0 (car list-size)))) (spacemacs-buffer||add-shortcut "R" "Recent Files by Project:") (insert spacemacs-buffer-list-separator))) (defun spacemacs-buffer//insert-todos (list-size) (when (spacemacs-buffer//insert-todo-list "ToDo:" (spacemacs//subseq (spacemacs-buffer//todo-list) 0 list-size)) (spacemacs-buffer||add-shortcut "d" "ToDo:") (insert spacemacs-buffer-list-separator))) (defun spacemacs-buffer//insert-agenda (list-size) (when (spacemacs-buffer//insert-todo-list "Agenda:" (spacemacs//subseq (spacemacs-buffer//agenda-list) 0 list-size)) (spacemacs-buffer||add-shortcut "c" "Agenda:") (insert spacemacs-buffer-list-separator))) (defun spacemacs-buffer//insert-bookmarks (list-size) (when (configuration-layer/layer-used-p 'spacemacs-helm) (helm-mode)) (require 'bookmark) (when (spacemacs-buffer//insert-bookmark-list "Bookmarks:" (spacemacs//subseq (bookmark-all-names) 0 list-size)) (spacemacs-buffer||add-shortcut "b" "Bookmarks:") (insert spacemacs-buffer-list-separator))) (defun spacemacs-buffer//insert-projects (list-size) (unless projectile-mode (projectile-mode)) (when (spacemacs-buffer//insert-file-list "Projects:" (spacemacs//subseq (projectile-relevant-known-projects) 0 list-size)) (spacemacs-buffer||add-shortcut "p" "Projects:") (insert spacemacs-buffer-list-separator))) (defvar spacemacs-buffer--startup-list-nr 1) (defun spacemacs-buffer//do-insert-startupify-lists () "Insert the startup lists in the current buffer." (setq spacemacs-buffer--startup-list-nr 1) (dolist (els (append '(warnings) dotspacemacs-startup-lists)) (let ((el (or (car-safe els) els)) (list-size (or (cdr-safe els) spacemacs-buffer-startup-lists-length))) (cond ((eq el 'warnings) (spacemacs-buffer//insert-errors) (spacemacs-buffer//insert-warnings)) ((eq el 'recents) (spacemacs-buffer//insert-recent-files list-size)) ((eq el 'recents-by-project) (spacemacs-buffer//insert-recent-files-by-project list-size)) ((eq el 'todos) (spacemacs-buffer//insert-todos list-size)) ((eq el 'agenda) (spacemacs-buffer//insert-agenda list-size)) ((eq el 'bookmarks) (spacemacs-buffer//insert-bookmarks list-size)) ((and (eq el 'projects) (fboundp 'projectile-mode)) (spacemacs-buffer//insert-projects list-size)))))) (defun spacemacs-buffer//get-buffer-width () "Return the length of longest line in the current buffer." (save-excursion (goto-char 0) (let ((current-max 0)) (while (not (eobp)) (let ((line-length (- (line-end-position) (line-beginning-position)))) (if (< current-max line-length) (setq current-max line-length))) (forward-line 1)) current-max))) (defun spacemacs-buffer//center-startup-lists () "Center startup lists after they were inserted." (let* ((lists-width (spacemacs-buffer//get-buffer-width)) (margin (max 0 (- spacemacs-buffer--buttons-position spacemacs-buffer-buttons-startup-lists-offset))) (final-padding (if (< spacemacs-buffer--window-width (+ margin lists-width)) (max 0 (floor (/ (- spacemacs-buffer--window-width lists-width) 2))) margin))) (goto-char (point-min)) (while (not (eobp)) (beginning-of-line) (insert (make-string final-padding ?\s)) (forward-line)))) (defun spacemacs-buffer/insert-startup-lists () "Insert startup lists in home buffer." (interactive) (with-current-buffer (get-buffer spacemacs-buffer-name) (let ((buffer-read-only nil)) (goto-char (point-max)) (spacemacs-buffer/insert-page-break) (insert "\n") (save-restriction (narrow-to-region (point) (point)) (spacemacs-buffer//do-insert-startupify-lists) (spacemacs-buffer//center-startup-lists))))) (defun spacemacs-buffer/goto-link-line () "Set point to the beginning of the link line." (interactive) (with-current-buffer spacemacs-buffer-name (goto-char (point-min)) (with-demoted-errors "spacemacs buffer error: %s" (search-forward "[") (left-char 2)))) (defvar spacemacs-buffer-multi-digit-delay 0.4 "This determines how quickly (in seconds) the numbers have to be typed.") (defvar spacemacs-buffer--idle-numbers-timer nil "This stores the idle numbers timer.") (defvar spacemacs-buffer--startup-list-number nil "This accumulates the numbers that are typed in the home buffer. It's cleared when the idle timer runs.") (defun spacemacs-buffer/jump-to-number-startup-list-line () "Jump to the startup list line with the typed number. The delay between the number key presses, can be adjusted (in seconds) with the variable: `spacemacs-buffer-multi-digit-delay'." (interactive) (when spacemacs-buffer--idle-numbers-timer (cancel-timer spacemacs-buffer--idle-numbers-timer)) (let* ((key-pressed-string (string last-input-event))) (setq spacemacs-buffer--startup-list-number (concat spacemacs-buffer--startup-list-number key-pressed-string)) (let (message-log-max) ; only show in minibuffer (message "Jump to startup list: %s" spacemacs-buffer--startup-list-number)) (setq spacemacs-buffer--idle-numbers-timer (run-with-idle-timer spacemacs-buffer-multi-digit-delay nil 'spacemacs-buffer/stop-waiting-for-additional-numbers)))) (defun spacemacs-buffer//re-line-starts-with-nr-space (nr-string) (concat "^\s?*" nr-string " ")) (defun spacemacs-buffer/jump-to-line-starting-with-nr-space (nr-string) "Jump to the line number that starts with NR." (let ((prev-point (point))) (goto-char (point-min)) (if (not (re-search-forward (spacemacs-buffer//re-line-starts-with-nr-space nr-string) nil 'noerror)) (progn (goto-char prev-point) (let (message-log-max) ; only show in minibuffer (message "Couldn't find startup list number: %s" spacemacs-buffer--startup-list-number))) (back-to-indentation) (message "Opening file/dir: %s" (replace-regexp-in-string "^\s*" "" (widget-value (widget-at (point))))) (widget-button-press (point))))) (defun spacemacs-buffer/stop-waiting-for-additional-numbers () (spacemacs-buffer/jump-to-line-starting-with-nr-space spacemacs-buffer--startup-list-number) (setq spacemacs-buffer--startup-list-number nil)) (defun spacemacs-buffer//startup-hook () "Code executed when Emacs has finished loading." (with-current-buffer (get-buffer spacemacs-buffer-name) (when dotspacemacs-startup-lists (spacemacs-buffer/insert-startup-lists)) (spacemacs-buffer//insert-footer) (if configuration-layer-error-count (progn (spacemacs-buffer-mode) (face-remap-add-relative 'mode-line '((:background "red") mode-line)) (spacemacs-buffer/set-mode-line (format (concat "%s error(s) at startup! " "Spacemacs may not be able to operate properly.") configuration-layer-error-count) t)) (spacemacs-buffer/set-mode-line spacemacs--default-mode-line) (spacemacs-buffer-mode)) (force-mode-line-update) (spacemacs-buffer/goto-link-line))) (defvar spacemacs-buffer--last-width nil "Previous width of spacemacs-buffer.") (defun spacemacs-buffer/goto-buffer (&optional refresh) "Create the special buffer for `spacemacs-buffer-mode' and switch to it. REFRESH if the buffer should be redrawn. If a prefix argument is given, switch to it in an other, possibly new window." (interactive) (let ((buffer-exists (buffer-live-p (get-buffer spacemacs-buffer-name))) (save-line nil)) (when (not buffer-exists) (setq spacemacs-buffer--note-widgets nil)) (when (or (not (eq spacemacs-buffer--last-width (window-width))) (not buffer-exists) refresh) (setq spacemacs-buffer--window-width (if dotspacemacs-startup-buffer-responsive (window-width) 80) spacemacs-buffer--last-width spacemacs-buffer--window-width) (with-current-buffer (get-buffer-create spacemacs-buffer-name) (page-break-lines-mode) (save-excursion (when (> (buffer-size) 0) (set 'save-line (line-number-at-pos)) (let ((inhibit-read-only t)) (erase-buffer))) (spacemacs-buffer/set-mode-line "") (if dotspacemacs-startup-buffer-show-version (spacemacs-buffer//insert-version) (let ((inhibit-read-only t)) (insert "\n"))) (spacemacs-buffer/insert-banner-and-buttons) (when (bound-and-true-p spacemacs-initialized) (spacemacs-buffer//notes-redisplay-current-note) (configuration-layer/display-summary emacs-start-time) (when dotspacemacs-startup-lists (spacemacs-buffer/insert-startup-lists)) (spacemacs-buffer//insert-footer) (spacemacs-buffer/set-mode-line spacemacs--default-mode-line) (force-mode-line-update) (spacemacs-buffer-mode))) (if save-line (progn (goto-char (point-min)) (forward-line (1- save-line)) (forward-to-indentation 0)) (spacemacs-buffer/goto-link-line))) (if current-prefix-arg (switch-to-buffer-other-window spacemacs-buffer-name) (switch-to-buffer spacemacs-buffer-name)) (spacemacs//redisplay)))) (add-hook 'window-setup-hook (lambda () (add-hook 'window-configuration-change-hook 'spacemacs-buffer//resize-on-hook) (spacemacs-buffer//resize-on-hook))) (defun spacemacs-buffer//resize-on-hook () "Hook run on window resize events to redisplay the home buffer." ;; prevent spacemacs buffer redisplay in the filetree window (unless (memq this-command '(neotree-find-project-root neotree-show neotree-toggle spacemacs/treemacs-project-toggle treemacs treemacs-bookmark treemacs-find-file treemacs-select-window)) (let ((home-buffer (get-buffer-window spacemacs-buffer-name)) (frame-win (frame-selected-window))) (when (and dotspacemacs-startup-buffer-responsive home-buffer (not (window-minibuffer-p frame-win))) (with-selected-window home-buffer (spacemacs-buffer/goto-buffer)))))) (defun spacemacs-buffer/refresh () "Force recreation of the spacemacs buffer." (interactive) (setq spacemacs-buffer--last-width nil) (spacemacs-buffer/goto-buffer t)) (defalias 'spacemacs/home 'spacemacs-buffer/refresh "Go to home Spacemacs buffer") (defun spacemacs/home-delete-other-windows () "Open home Spacemacs buffer and delete other windows. Useful for making the home buffer the only visible buffer in the frame." (interactive) (spacemacs/home) (delete-other-windows)) (provide 'core-spacemacs-buffer) ;;; core-spacemacs-buffer ends here