Redmine/lib/redmine/views/builders/structure.rb

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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.
require 'blankslate'
module Redmine
module Views
module Builders
class Structure < BlankSlate
def initialize
@struct = [{}]
end
def array(tag, options={}, &block)
@struct << []
block.call(self)
ret = @struct.pop
@struct.last[tag] = ret
@struct.last.merge!(options) if options
end
def method_missing(sym, *args, &block)
if args.any?
if args.first.is_a?(Hash)
if @struct.last.is_a?(Array)
@struct.last << args.first unless block
else
@struct.last[sym] = args.first
end
else
if @struct.last.is_a?(Array)
if args.size == 1 && !block_given?
@struct.last << args.first
else
@struct.last << (args.last || {}).merge(:value => args.first)
end
else
@struct.last[sym] = args.first
end
end
end
if block
@struct << (args.first.is_a?(Hash) ? args.first : {})
block.call(self)
ret = @struct.pop
if @struct.last.is_a?(Array)
@struct.last << ret
else
if @struct.last.has_key?(sym) && @struct.last[sym].is_a?(Hash)
@struct.last[sym].merge! ret
else
@struct.last[sym] = ret
end
end
end
end
def output
raise "Need to implement #{self.class.name}#output"
end
end
end
end
end