Chris@0: # redMine - project management software
Chris@0: # Copyright (C) 2006-2007  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@0: # 
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@0: # 
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: module WikiHelper
Chris@0:   
Chris@0:   def wiki_page_options_for_select(pages, selected = nil, parent = nil, level = 0)
Chris@0:     s = ''
Chris@0:     pages.select {|p| p.parent == parent}.each do |page|
Chris@0:       attrs = "value='#{page.id}'"
Chris@0:       attrs << " selected='selected'" if selected == page
Chris@0:       indent = (level > 0) ? ('&nbsp;' * level * 2 + '&#187; ') : nil
Chris@0:       
chris@37:       s << "<option #{attrs}>#{indent}#{h page.pretty_title}</option>\n" + 
Chris@0:              wiki_page_options_for_select(pages, selected, page, level + 1)
Chris@0:     end
Chris@0:     s
Chris@0:   end
Chris@0:   
Chris@0:   def html_diff(wdiff)
Chris@0:     words = wdiff.words.collect{|word| h(word)}
Chris@0:     words_add = 0
Chris@0:     words_del = 0
Chris@0:     dels = 0
Chris@0:     del_off = 0
Chris@0:     wdiff.diff.diffs.each do |diff|
Chris@0:       add_at = nil
Chris@0:       add_to = nil
Chris@0:       del_at = nil
Chris@0:       deleted = ""	    
Chris@0:       diff.each do |change|
Chris@0:         pos = change[1]
Chris@0:         if change[0] == "+"
Chris@0:           add_at = pos + dels unless add_at
Chris@0:           add_to = pos + dels
Chris@0:           words_add += 1
Chris@0:         else
Chris@0:           del_at = pos unless del_at
Chris@0:           deleted << ' ' + h(change[2])
Chris@0:           words_del	 += 1
Chris@0:         end
Chris@0:       end
Chris@0:       if add_at
Chris@0:         words[add_at] = '<span class="diff_in">' + words[add_at]
Chris@0:         words[add_to] = words[add_to] + '</span>'
Chris@0:       end
Chris@0:       if del_at
Chris@0:         words.insert del_at - del_off + dels + words_add, '<span class="diff_out">' + deleted + '</span>'
Chris@0:         dels += 1
Chris@0:         del_off += words_del
Chris@0:         words_del = 0
Chris@0:       end
Chris@0:     end
Chris@0:     simple_format_without_paragraph(words.join(' '))
Chris@0:   end
Chris@0: end