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57 lines
2 KiB
EmacsLisp
57 lines
2 KiB
EmacsLisp
;;; ein-skewer.el --- Cell module
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;; (C) 2016 - John M Miller
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;; Author: John M Miller <millejoh at mac.com>
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;; This file is NOT part of GNU Emacs.
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;; ein-skewer.el is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; ein-skewre.el is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with ein-cell.el. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This depends on the skewer package, so likely will get split into
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;; its own package at some point.
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;;; Code:
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(require 'skewer-mode)
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(defvar *ein:skewer-running-p* nil "True if the emacs httpd server has been started.")
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(defun ein:js-prepare-result (result type)
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(list :output_type type :text result))
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(defun ein:update-javascript-output (cell json result)
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(let ((val (ein:js-prepare-result
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(cdr (assoc 'value result))
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(plist-get json :output_type))))
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(setf (oref cell :outputs) (list val))
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(ein:cell-append-display-data cell val)))
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;; Format of result is ((id . STR) (type . STR) (status . STR) (value . STR) (time . FLOAT))
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(defun ein:execute-javascript (cell json)
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(unless *ein:skewer-running-p*
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(run-skewer)
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(setq *ein:skewer-running-p* t))
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;; Call synchronously is a bit dangerous here - we should maybe come up with a timeout
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;; check.
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;; (skewer-eval (plist-get json :javascript)
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;; (apply-partially #'ein:update-javascript-output cell json))
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(ein:update-javascript-output cell
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json
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(skewer-eval-synchronously (plist-get json :javascript)))
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)
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(provide 'ein-skewer)
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