require 'stringsupport' class AbstractUrlGenerator def initialize(controller) raise 'Controller cannot be nil' if controller.nil? @controller = controller end # Create a link for the given page (or file) name and link text based # on the render mode in options and whether the page (file) exists # in the web. def make_link(current_web, asked_name, web, text = nil, options = {}) @web = current_web mode = (options[:mode] || :show).to_sym link_type = (options[:link_type] || :show).to_sym if (link_type == :show) page_exists = web.has_page?(asked_name) known_page = page_exists || web.has_redirect_for?(asked_name) if known_page && !page_exists name = web.page_that_redirects_for(asked_name).name else name = asked_name end else name = asked_name known_page = web.has_file?(name) description = web.description(name) description = description.unescapeHTML.escapeHTML if description end if (text == asked_name) text = description || text else text = text || description end text = (text || WikiWords.separate(asked_name)).unescapeHTML.escapeHTML case link_type when :show page_link(mode, name, text, web.address, known_page) when :file file_link(mode, name, text, web.address, known_page, description) when :pic pic_link(mode, name, text, web.address, known_page) when :audio media_link(mode, name, text, web.address, known_page, 'audio') when :video media_link(mode, name, text, web.address, known_page, 'video') when :delete delete_link(mode, name, web.address, known_page) else raise "Unknown link type: #{link_type}" end end def url_for(hash = {}) @controller.url_for hash end end class UrlGenerator < AbstractUrlGenerator private def file_link(mode, name, text, web_address, known_file, description) case mode when :export if known_file %{#{text}} else %{#{text}} end when :publish if known_file href = @controller.url_for :controller => 'file', :web => web_address, :action => 'file', :id => name, :only_path => true %{#{text}} else %{#{text}} end else href = @controller.url_for :controller => 'file', :web => web_address, :action => 'file', :id => name, :only_path => true if known_file %{#{text}} else %{#{text}?} end end end def page_link(mode, name, text, web_address, known_page) case mode when :export if known_page %{#{text}} else %{#{text}} end when :publish if known_page wikilink_for(mode, name, text, web_address) else %{#{text}} end else if known_page wikilink_for(mode, name, text, web_address) else href = @controller.url_for :controller => 'wiki', :web => web_address, :action => 'new', :id => name, :only_path => true %{#{text}?} end end end def pic_link(mode, name, text, web_address, known_pic) href = @controller.url_for :controller => 'file', :web => web_address, :action => 'file', :id => name, :only_path => true case mode when :export if known_pic %{#{text}} else %{#{text}} end when :publish if known_pic %{#{text}} else %{#{text}} end else if known_pic %{#{text}} else %{#{text}?} end end end def media_link(mode, name, text, web_address, known_media, media_type) href = @controller.url_for :controller => 'file', :web => web_address, :action => 'file', :id => name, :only_path => true case mode when :export if known_media %{<#{media_type} src="files/#{CGI.escape(name)}" controls="controls">#{text}} else text end when :publish if known_media %{<#{media_type} src="#{href}" controls="controls">#{text}} else %{#{text}} end else if known_media %{<#{media_type} src="#{href}" controls="controls">#{text}} else %{#{text}?} end end end def delete_link(mode, name, web_address, known_file) href = @controller.url_for :controller => 'file', :web => web_address, :action => 'delete', :id => name, :only_oath => true if mode == :show and known_file %{Delete #{name}} else %{[[#{name}:delete]]} end end private def wikilink_for(mode, name, text, web_address) web = Web.find_by_address(web_address) action = web.published? && (web != @web || [:publish, :s5].include?(mode) ) ? 'published' : 'show' href = @controller.url_for :controller => 'wiki', :web => web_address, :action => action, :id => name, :only_path => true title = web == @web ? '' : %{ title="#{web_address}"} %{#{text}} end def html_ext @html_ext ||= @controller.method(:html_ext).call # Why method().call ? A Ruby 1.9.2preview1 bug: # http://redmine.ruby-lang.org/issues/show/1802 end end