Class: Kwartz::StrutsHandler

Inherits:
JstlHandler show all
Defined in:
lib/kwartz/binding/struts.rb

Overview

experimental

directive handler for Struts

Constant Summary

Constants inherited from JstlHandler

JstlHandler::JSTL_DIRECTIVE_FORMAT, JstlHandler::JSTL_DIRECTIVE_PATTERN, JstlHandler::JSTL_MAPPING_PATTERN

Instance Attribute Summary

Attributes inherited from Handler

#even, #filename, #odd

Instance Method Summary collapse

Methods inherited from JstlHandler

#directive_format, #directive_pattern, #initialize, #mapping_pattern

Methods included from JstlExpressionParser

#parse_expr_str, #parse_expr_str!

Methods inherited from Handler

#_elem_info_table, #_import_element_info_from_handler, #apply_rulesets, #extract, get_class, #get_element_info, #get_ruleset, #handle_directives, #initialize, register_class, #register_element_info

Methods included from Expander

#expand_element_info, #expand_statement, #expand_statements, #get_element_info, #get_ruleset

Methods included from Assertion

assert

Methods included from HandlerHelper

#_last_stmt_kind, #add_foreach_stmts, #add_native_code, #add_native_expr_with_default, #build_print_args, #build_print_expr_stmt, #build_print_stmt, #create_text_print_stmt, #error_if_empty_tag, #error_when_last_stmt_is_not_if, #etag_stmt, #expand_attr_vars, #expand_attr_vars_in_native_expr, #expand_attr_vars_in_native_stmt, #stag_stmt, #wrap_content_with_native_stmt, #wrap_element_with_native_stmt

Methods included from ConvertErrorHelper

#convert_error

Constructor Details

This class inherits a constructor from Kwartz::JstlHandler

Instance Method Details

#handle(directive, elem_info, stmt_list) ⇒ Object 



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# File 'lib/kwartz/binding/struts.rb', line 25

def handle(directive, elem_info, stmt_list)
  ret = super
  return ret if ret

  d_name = directive.name
  d_arg  = directive.arg
  d_str  = directive.str
  e = elem_info

  case d_name

  when :struts
    case tag = e.stag_info.tagname
    when 'input'  ;  tag = e.attr_info['type'] || 'text'  ; e.attr_info.delete('type')
    when 'a'      ;  tag = 'link'
    when 'script' ;  tag = 'javascript'
    end
    tag == :struts   and raise convert_error("#{d_str}: unknown directive.", e.stag_info.linenum)
    directive.name = tag.intern
    return self.handle(directive, elem_info, stmt_list)

  else
    convert_mapping = {
      'name'=>'property',
      'class'=>'cssClass'
    }
    convert_mapping.each do |html_aname, struts_aname|
      next unless e.attr_info[html_aname]
      e.attr_info[struts_aname] = e.attr_info[html_aname]
      e.attr_info.delete(html_aname)
    end
    opts = eval "_evaluate_options(#{d_arg})"
    opts.each do |name, value|
      e.attr_info[name.to_s] = value.is_a?(Symbol) ? "${#{value}}" : value
    end
    tagname = "html:#{d_name}"
    e.stag_info.tagname = tagname
    e.etag_info.tagname = tagname if e.etag_info
    e.stag_info.is_empty = true   if !e.etag_info
    stmt_list << build_print_stmt(e.stag_info, e.attr_info, e.append_exprs)
    stmt_list.concat(cont_stmts)
    stmt_list << build_print_stmt(e.etag_info, nil, nil) if e.etag_info

  end #case
  return true

end