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Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180913.348/haskell-menu.el')
| -rw-r--r-- | configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180913.348/haskell-menu.el | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180913.348/haskell-menu.el b/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180913.348/haskell-menu.el new file mode 100644 index 000000000000..7e1f1b0b7b4d --- /dev/null +++ b/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180913.348/haskell-menu.el @@ -0,0 +1,162 @@ +;;; haskell-menu.el --- A Haskell sessions menu -*- lexical-binding: t -*- + +;; Copyright (C) 2013 Chris Done + +;; Author: Chris Done <chrisdone@gmail.com> + +;; This file is not part of GNU Emacs. + +;; This file is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation; either version 3, or (at your option) +;; any later version. + +;; This file is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs; see the file COPYING. If not, write to +;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +;; Boston, MA 02110-1301, USA. + +;;; Commentary: + +;;; Todo: + +;;; Code: + +(require 'cl-lib) +(require 'haskell-compat) +(require 'haskell-session) +(require 'haskell-process) +(require 'haskell-interactive-mode) + +(defcustom haskell-menu-buffer-name "*haskell-menu*" + "The name of the Haskell session menu buffer" + :group 'haskell-interactive + :type 'string) + +;;;###autoload +(defun haskell-menu () + "Launch the Haskell sessions menu." + (interactive) + (or (get-buffer haskell-menu-buffer-name) + (with-current-buffer (get-buffer-create haskell-menu-buffer-name) + (haskell-menu-mode))) + (switch-to-buffer-other-window (get-buffer haskell-menu-buffer-name)) + (haskell-menu-revert-function nil nil)) + +(defvar haskell-menu-mode-map + (let ((map (make-sparse-keymap))) + (define-key map (kbd "n") 'next-line) + (define-key map (kbd "p") 'previous-line) + (define-key map (kbd "RET") 'haskell-menu-mode-ret) + map) + "Keymap for `haskell-menu-mode'.") + +(define-derived-mode haskell-menu-mode special-mode "Haskell Session Menu" + "Major mode for managing Haskell sessions. +Each line describes one session. +Letters do not insert themselves; instead, they are commands." + (setq buffer-read-only t) + (setq-local revert-buffer-function 'haskell-menu-revert-function) + (setq truncate-lines t) + (haskell-menu-revert-function nil t)) + +(suppress-keymap haskell-menu-mode-map t) + +(defun haskell-menu-revert-function (_arg1 _arg2) + "Function to refresh the display." + (let ((buffer-read-only nil) + (orig-line (line-number-at-pos)) + (orig-col (current-column))) + (or (eq buffer-undo-list t) + (setq buffer-undo-list nil)) + (erase-buffer) + (haskell-menu-insert-menu) + (goto-char (point-min)) + (forward-line (1- orig-line)) + (forward-char orig-col))) + +(defun haskell-menu-insert-menu () + "Insert the Haskell sessions menu to the current buffer." + (if (null haskell-sessions) + (insert "No Haskell sessions.") + (haskell-menu-tabulate + (list "Name" "PID" "Time" "RSS" "Cabal directory" "Working directory" "Command") + (mapcar (lambda (session) + (let ((process (haskell-process-process (haskell-session-process session)))) + (cond + (process + (let ((id (process-id process))) + (list (propertize (haskell-session-name session) 'face 'buffer-menu-buffer) + (if (process-live-p process) (number-to-string id) "-") + (if (process-live-p process) + (format-time-string "%H:%M:%S" + (encode-time (cl-caddr (assoc 'etime (process-attributes id))) + 0 0 0 0 0)) + "-") + (if (process-live-p process) + (concat (number-to-string (/ (cdr (assoc 'rss (process-attributes id))) + 1024)) + "MB") + "-") + (haskell-session-cabal-dir session) + (haskell-session-current-dir session) + (mapconcat 'identity (process-command process) " ")))) + (t (list (propertize (haskell-session-name session) 'face 'buffer-menu-buffer) + "โ" + "โ" + "โ" + (haskell-session-cabal-dir session) + (haskell-session-current-dir session)))))) + haskell-sessions)))) + +(defun haskell-menu-tabulate (headings rows) + "Prints a list of lists as a formatted table to the current buffer." + (let* ((columns (length headings)) + (widths (make-list columns 0))) + ;; Calculate column widths. This is kind of hideous. + (dolist (row rows) + (setq widths + (let ((list (list))) + (dotimes (i columns) + (setq list (cons (max (nth i widths) + (1+ (length (nth i row))) + (1+ (length (nth i headings)))) + list))) + (reverse list)))) + ;; Print headings. + (let ((heading (propertize " " 'display '(space :align-to 0)))) + (dotimes (i columns) + (setq heading (concat heading + (format (concat "%-" (number-to-string (nth i widths)) "s") + (nth i headings))))) + (setq header-line-format heading)) + ;; Print tabulated rows. + (dolist (row rows) + (dotimes (i columns) + (insert (format (concat "%-" (number-to-string (nth i widths)) "s") + (nth i row)))) + (insert "\n")))) + +(defun haskell-menu-mode-ret () + "Handle RET key." + (interactive) + (let* ((name (save-excursion + (goto-char (line-beginning-position)) + (buffer-substring-no-properties (point) + (progn (search-forward " ") + (forward-char -1) + (point))))) + (session (car (cl-remove-if-not (lambda (session) + (string= (haskell-session-name session) + name)) + haskell-sessions)))) + (switch-to-buffer (haskell-session-interactive-buffer session)))) + +(provide 'haskell-menu) + +;;; haskell-menu.el ends here |