module ActionView::Helpers::FormHelper

def form_for_with_haml(object_name, *args, &proc)
  wrap_block = block_given? && is_haml? && block_is_haml?(proc)
  if wrap_block
    oldproc = proc
    proc = proc {|*args| with_tabs(1) {oldproc.call(*args)}}
  end
  res = form_for_without_haml(object_name, *args, &proc)
  res << "\n" if wrap_block
  res
end

def form_for_with_haml(object_name, *args, &proc)
  wrap_block = block_given? && is_haml? && block_is_haml?(proc)
  if wrap_block
    oldproc = proc
    proc = haml_bind_proc do |*args|
      tab_up
      oldproc.call(*args)
      tab_down
      concat haml_indent
    end
    concat haml_indent
  end
  form_for_without_haml(object_name, *args, &proc)
  concat "\n" if wrap_block
  Haml::Helpers::ErrorReturn.new("form_for") if is_haml?
end

def form_for_with_haml_xss(*args, &block)
  res = form_for_without_haml_xss(*args, &block)
  return Haml::Util.html_safe(res) if res.is_a?(String)
  return res
end