89 lines
3.2 KiB
EmacsLisp
89 lines
3.2 KiB
EmacsLisp
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;;; lsp-origami.el --- origami.el support for lsp-mode -*- lexical-binding: t; -*-
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;; Copyright (C) 2019-2020 Vibhav Pant <vibhavp@gmail.com>
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;; Author: Vibhav Pant
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;; Version: 1.0.0
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;; Keywords: languages lsp-mode
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;; Package-Requires: ((origami "1.0") (lsp-mode "6.1"))
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;; URL: https://github.com/emacs-lsp/lsp-origami
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;; This program 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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;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; lsp-origami provides support for origami.el using language server
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;; protocol's "textDocument/foldingRange" functionality. It can be enabled
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;; with
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;; (require 'lsp-origami)
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;; (add-hook 'lsp-after-open-hook #'lsp-origami-try-enable)
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;;; Code:
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(require 'origami)
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(require 'lsp-mode)
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(defun lsp-origami--folding-range-to-fold (range create)
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"Using the components of RANGE as arguments, execute the CREATE callback."
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(funcall create
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(lsp--folding-range-beg range)
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(lsp--folding-range-end range)
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0
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(seq-map
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(lambda (range) (lsp-origami--folding-range-to-fold range create))
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(seq-remove (lambda (child-range)
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(or (eq (lsp--folding-range-beg child-range)
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(lsp--folding-range-beg range))
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(eq (lsp--folding-range-end child-range)
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(lsp--folding-range-end range))))
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(lsp--folding-range-children range)))))
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(defun lsp-origami--parser (create)
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"Get a list of Folding Ranges for the current buffer, with CREATE as the origami callback."
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(lambda (_content)
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(unless (lsp-feature? "foldingRangeProvider")
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(signal 'lsp-capability-not-supported (list "foldingRangeProvider")))
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(seq-map (lambda (range)
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(lsp-origami--folding-range-to-fold range create))
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(lsp--get-nested-folding-ranges))))
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;;;###autoload
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(defun lsp-origami-try-enable ()
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"Turn on `origami-mode' locally and try to enable `lsp-origami-mode'."
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(interactive)
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(origami-mode 1)
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(cond ((lsp-feature? "textDocument/foldingRange")
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(lsp-origami-mode 1))
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((called-interactively-p 'any)
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(signal 'lsp-capability-not-supported (list "foldingRangeProvider")))
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(t
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(lsp-log "This server does not support foldingRangeProvider"))))
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;;;###autoload
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(define-minor-mode lsp-origami-mode
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"Toggle code folding support for origami."
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:group 'lsp-origami
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:global nil
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(cond
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(lsp-origami-mode
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(setq-local origami-fold-style 'lsp-mode)
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(setq-local origami-parser-alist
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(cons '(lsp-mode . lsp-origami--parser) origami-parser-alist)))
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(t
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(setq-local origami-fold-style nil))))
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(provide 'lsp-origami)
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;;; lsp-origami.el ends here
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