Add src

Author: jcs090218

sideline-geiser.el

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+;;; sideline-geiser.el --- Show Geiser result with sideline  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2024  Shen, Jen-Chieh
+
+;; Author: Shen, Jen-Chieh <jcs090218@gmail.com>
+;; Maintainer: Shen, Jen-Chieh <jcs090218@gmail.com>
+;; URL: https://github.com/emacs-sideline/sideline-geiser
+;; Version: 0.1.0
+;; Package-Requires: ((emacs "28.1") (sideline "0.1.0") (geiser "0.31.1"))
+;; Keywords: convenience
+
+;; This file is not part of GNU Emacs.
+
+;; This program 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 of the License, or
+;; (at your option) any later version.
+
+;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Show Geiser result with sideline.
+;;
+
+;;; Code:
+
+(require 'sideline)
+
+(eval-when-compile
+  (require 'geiser)
+  (require 'geiser-mode))
+
+(defgroup sideline-geiser nil
+  "Show Geiser result with sideline."
+  :prefix "sideline-geiser-"
+  :group 'tool
+  :link '(url-link :tag "Repository" "https://github.com/emacs-sideline/sideline-geiser"))
+
+(defface sideline-geiser-result-overlay-face
+  '((((class color) (background light))
+     :background "grey90" :box (:line-width -1 :color "yellow"))
+    (((class color) (background dark))
+     :background "grey10" :box (:line-width -1 :color "black")))
+  "Face used to display evaluation results."
+  :group 'sideline-racket)
+
+(defvar sideline-geiser--buffer nil
+  "Record the evaluation buffer.")
+
+(defvar-local sideline-geiser--callback nil
+  "Callback to display result.")
+
+;;;###autoload
+(defun sideline-geiser (command)
+  "Backend for sideline.
+
+Argument COMMAND is required in sideline backend."
+  (cl-case command
+    (`candidates (cons :async
+                       (lambda (callback &rest _)
+                         (setq sideline-geiser--callback callback
+                               sideline-geiser--buffer (current-buffer)))))
+    (`face 'sideline-geiser-result-overlay-face)))
+
+;;;###autoload
+(defun sideline-geiser-show (msg is-error &rest _)
+  "Display the result MSG."
+  (when (and msg
+             sideline-geiser--buffer)
+    (with-current-buffer sideline-geiser--buffer
+      (funcall sideline-geiser--callback
+               (list (format "%s%s"
+                             (if is-error "ERROR" "")
+                             msg))))))
+
+(provide 'sideline-geiser)
+;;; sideline-geiser.el ends here