canvas-lms/lib/math_man.rb

66 lines
1.7 KiB
Ruby

#
# Copyright (C) 2016 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas 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, version 3 of the License.
#
# Canvas 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/>.
require "addressable/uri"
module MathMan
def self.url_for(latex:, target:)
uri = base_url.join(target.to_s)
uri.query = "tex=#{latex}"
uri.to_s
end
def self.use_for_mml?
with_plugin_settings do |plugin_settings|
Canvas::Plugin.value_to_boolean(
plugin_settings[:use_for_mml]
)
end
end
def self.use_for_svg?
with_plugin_settings do |plugin_settings|
Canvas::Plugin.value_to_boolean(
plugin_settings[:use_for_svg]
)
end
end
class << self
private
def base_url
with_plugin_settings do |plugin_settings|
Addressable::URI.parse(plugin_settings[:base_url]).tap do |uri|
uri.path << '/' unless uri.path.end_with?('/')
end
end
end
def with_plugin_settings
plugin_settings = Canvas::DynamicSettings.for_prefix('math-man')
yield plugin_settings
rescue Canvas::DynamicSettings::NoFallbackError
if Rails.env.production?
raise
else
yield({})
end
end
end
end