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# Redmine - project management software

# Copyright (C) 2006-2011  Jean-Philippe Lang

#

# This program is free software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License

# as published by the Free Software Foundation; either version 2

# of the License, or (at your option) any later version.

# 

# This program 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 General Public License for more details.

# 

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

module WikiHelper

  def wiki_page_options_for_select(pages, selected = nil, parent = nil, level = 0)

    pages = pages.group_by(&:parent) unless pages.is_a?(Hash)

    s = ''

    if pages.has_key?(parent)

      pages[parent].each do |page|

        attrs = "value='#{page.id}'"

        attrs << " selected='selected'" if selected == page

        indent = (level > 0) ? (' ' * level * 2 + '» ') : nil

        s << "<option #{attrs}>#{indent}#{h page.pretty_title}</option>\n" + 

               wiki_page_options_for_select(pages, selected, page, level + 1)

      end

    end

    s

  end

end