init.rb

Redmine::Plugin.register :redmine_codebutton do
  name 'Code Highlight plugin'
  author 'Jan Jezek'
  description 'This is a plugin for Redmine. It adds a CodeHighlight Button to the editor, which wraps a code around selected text'
  version '0.3.0'
  url 'https://github.com/mediatainment/redmine-codebutton'
  author_url 'http://www.mediatainment-productions.com'

  settings :default => {
    'default_language' => false,
    'markdown_syntax' => '~~~'
  }, :partial => 'redmine_codebutton_settings'
end

Rails.configuration.to_prepare do
  # Guards against including the module multiple time (like in tests)
  # and registering multiple callbacks

  # send Patches to all wiki formatters available to be able to switch formatter without app restart
  Redmine::WikiFormatting::format_names.each do |format|
    case format
    when "markdown"
      unless Redmine::WikiFormatting::Markdown::Helper.included_modules.include? WikiCodehighlightHelperPatch
        Redmine::WikiFormatting::Markdown::Helper.send(:include, WikiCodehighlightHelperPatch)
      end
    when "textile"
      unless Redmine::WikiFormatting::Textile::Helper.included_modules.include? WikiCodehighlightHelperPatch
        Redmine::WikiFormatting::Textile::Helper.send(:include, WikiCodehighlightHelperPatch)
      end
    end
  end

end