Class: FormReader

Inherits:
Object show all
Defined in:
lib/web/formreader.rb

Overview

:nodoc: all

Defined Under Namespace

Classes: FormElements, Option, Select

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(html) ⇒ FormReader

Returns a new instance of FormReader.



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# File 'lib/web/formreader.rb', line 5

def initialize( html )
  @html = html
  @html_tree = nil
  @parsed = nil
  @url = ""
end

Instance Attribute Details

#forms ⇒ Object 



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# File 'lib/web/formreader.rb', line 17

def forms
  @forms ||= { }
end

#html ⇒ Object Also known as: body

Returns the value of attribute html.



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# File 'lib/web/formreader.rb', line 2

def html
  @html
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



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# File 'lib/web/formreader.rb', line 4

def url
  @url
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/web/formreader.rb', line 21

def [] (key)
  # ugly ugly ugly
  form_elements( key )
  forms[key]
end

#form_elements(name) ⇒ Object 



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# File 'lib/web/formreader.rb', line 27

def form_elements( name )
  unless( forms[name] )
    html_tree.get_elements("form").each{ |form|
      if (name == form.attribute("name"))
        forms[name] ||= FormElements.new

        forms[name].action = form.attribute("action")

        form.get_elements("input").each{ |e|
          if ["text","hidden","submit","password","file"].include? e.attribute("type") or e.attribute("type").nil?
            forms[name].push_text( e.attribute("name"),
                                   Web.unescape(e.attribute("value")) || "" )
          elsif e.attribute("type") == "checkbox"
            # boolean checkboxes
            #   - assumed if there is no value
            if (e.attribute("value") == "" || e.attribute("value").nil?)
              forms[name].push( e.attribute("name"),
                                if (e.attribute("checked"))
                                  true
                                else
                                  false
                                end )
            else
              # multi select checkboxes
              select = forms[name].find_select( e.attribute("name") )
              select.multiple = true
              select.push_option(e)
            end
          elsif e.attribute("type") == "radio"
            select = forms[name].find_select( e.attribute("name") )
            select.multiple = false
            select.push_option(e)
          elsif e.attribute("type") == "file"
          end
        }
        form.get_elements("textarea").each{ |e|
          forms[name].push_text e.attribute("name"), e.content.to_s.strip
        }
        form.get_elements("select").each { |e|
          select = Select.new
          select.multiple = e.attribute("multiple") != nil
          e.get_elements("option").each{ |option|
            select.shift_option( option )
          }
          forms[name].push_select e.attribute("name"), select
        }
      end
    }
  end
  forms[name]
end

#get_content ⇒ Object 



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# File 'lib/web/formreader.rb', line 12

def get_content
  html
end

#get_fields(name) ⇒ Object 



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# File 'lib/web/formreader.rb', line 79

def get_fields( name )
  form_elements(name).get_fields
end

#get_options(name) ⇒ Object 



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# File 'lib/web/formreader.rb', line 83

def get_options( name )
  form_elements(name).get_options
end

#html_tree ⇒ Object 



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# File 'lib/web/formreader.rb', line 87

def html_tree
  unless (@html_tree)
    p = HTMLTree::Parser.new(true, false)
    p.feed get_content
    @html_tree = p.tree
  end
  @html_tree
end

#merge_fields(name, edited_fields) ⇒ Object 



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# File 'lib/web/formreader.rb', line 97

def merge_fields( name, edited_fields )
  form_elements(name).merge_fields(edited_fields)
end