Chris@909: # encoding: utf-8
Chris@909: #
Chris@909: # Redmine - project management software
Chris@909: # Copyright (C) 2006-2011  Jean-Philippe Lang
Chris@909: #
Chris@909: # This program is free software; you can redistribute it and/or
Chris@909: # modify it under the terms of the GNU General Public License
Chris@909: # as published by the Free Software Foundation; either version 2
Chris@909: # of the License, or (at your option) any later version.
Chris@909: #
Chris@909: # This program is distributed in the hope that it will be useful,
Chris@909: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@909: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@909: # GNU General Public License for more details.
Chris@909: #
Chris@909: # You should have received a copy of the GNU General Public License
Chris@909: # along with this program; if not, write to the Free Software
Chris@909: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@909: 
Chris@909: module SearchHelper
Chris@909:   def highlight_tokens(text, tokens)
Chris@909:     return text unless text && tokens && !tokens.empty?
Chris@909:     re_tokens = tokens.collect {|t| Regexp.escape(t)}
Chris@909:     regexp = Regexp.new "(#{re_tokens.join('|')})", Regexp::IGNORECASE
Chris@909:     result = ''
Chris@909:     text.split(regexp).each_with_index do |words, i|
Chris@909:       if result.length > 1200
Chris@909:         # maximum length of the preview reached
Chris@909:         result << '...'
Chris@909:         break
Chris@909:       end
Chris@909:       words = words.mb_chars
Chris@909:       if i.even?
Chris@909:         result << h(words.length > 100 ? "#{words.slice(0..44)} ... #{words.slice(-45..-1)}" : words)
Chris@909:       else
Chris@909:         t = (tokens.index(words.downcase) || 0) % 4
Chris@909:         result << content_tag('span', h(words), :class => "highlight token-#{t}")
Chris@909:       end
Chris@909:     end
Chris@909:     result
Chris@909:   end
Chris@909: 
Chris@909:   def type_label(t)
Chris@909:     l("label_#{t.singularize}_plural", :default => t.to_s.humanize)
Chris@909:   end
Chris@909: 
Chris@909:   def project_select_tag
Chris@909:     options = [[l(:label_project_all), 'all']]
Chris@909:     options << [l(:label_my_projects), 'my_projects'] unless User.current.memberships.empty?
Chris@909:     options << [l(:label_and_its_subprojects, @project.name), 'subprojects'] unless @project.nil? || @project.descendants.active.empty?
Chris@909:     options << [@project.name, ''] unless @project.nil?
Chris@909:     label_tag("scope", l(:description_project_scope), :class => "hidden-for-sighted") +
Chris@909:     select_tag('scope', options_for_select(options, params[:scope].to_s)) if options.size > 1
Chris@909:   end
Chris@909: 
Chris@909:   def render_results_by_type(results_by_type)
Chris@909:     links = []
Chris@909:     # Sorts types by results count
Chris@909:     results_by_type.keys.sort {|a, b| results_by_type[b] <=> results_by_type[a]}.each do |t|
Chris@909:       c = results_by_type[t]
Chris@909:       next if c == 0
Chris@909:       text = "#{type_label(t)} (#{c})"
Chris@909:       links << link_to(h(text), :q => params[:q], :titles_only => params[:titles_only],
Chris@909:                        :all_words => params[:all_words], :scope => params[:scope], t => 1)
Chris@909:     end
Chris@909:     ('<ul>' + links.map {|link| content_tag('li', link)}.join(' ') + '</ul>') unless links.empty?
Chris@909:   end
Chris@909: end