taiga-front/app/modules/components/wysiwyg/wysiwyg-code-hightlighter.s...

79 lines
2.9 KiB
CoffeeScript

###
# Copyright (C) 2014-2017 Andrey Antukh <niwi@niwi.nz>
# Copyright (C) 2014-2017 Jesús Espino Garcia <jespinog@gmail.com>
# Copyright (C) 2014-2017 David Barragán Merino <bameda@dbarragan.com>
# Copyright (C) 2014-2017 Alejandro Alonso <alejandro.alonso@kaleidos.net>
# Copyright (C) 2014-2017 Juan Francisco Alcántara <juanfran.alcantara@kaleidos.net>
# Copyright (C) 2014-2017 Xavi Julian <xavier.julian@kaleidos.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# File: modules/components/wysiwyg/wysiwyg-code-hightlighter.service.coffee
###
class WysiwygCodeHightlighterService
constructor: () ->
Prism.plugins.customClass.prefix('prism-')
Prism.plugins.customClass.map({})
getLanguages: () ->
return new Promise (resolve, reject) =>
if @.languages
resolve(@.languages)
else if @.loadPromise
@.loadPromise.then () => resolve(@.languages)
else
@.loadPromise = $.getJSON("/#{window._version}/prism/prism-languages.json").then (_languages_) =>
@.loadPromise = null
@.languages = _.map _languages_, (it) ->
it.url = "/#{window._version}/prism/" + it.file
return it
resolve(@.languages)
getLanguageInClassList: (classes) ->
lan = _.find @.languages, (it) ->
return !!_.find classes, (className) ->
return 'language-' + it.name == className
return if lan then lan.name else null
loadLanguage: (lan) ->
return new Promise (resolve) ->
if !Prism.languages[lan]
ljs.load("/#{window._version}/prism/prism-#{lan}.min.js", resolve)
else
resolve()
# firefox adds br instead of new lines inside <code>
replaceCodeBrToNl: (code) ->
$(code).find('br').replaceWith('\n')
hightlightCode: (code) ->
@.replaceCodeBrToNl(code)
lan = @.getLanguageInClassList(code.classList)
if lan
@.loadLanguage(lan).then () -> Prism.highlightElement(code)
addHightlighter: (element) ->
codes = $(element).find('code')
codes.each (index, code) => @.hightlightCode(code)
angular.module("taigaComponents")
.service("tgWysiwygCodeHightlighterService", WysiwygCodeHightlighterService)