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form.rb
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form.rb
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require "webrat/core/field"
require "webrat/core_extensions/blank"
module Webrat
class Form #:nodoc:
attr_reader :element
def initialize(session, element)
@session = session
@element = element
@fields = nil
end
def field(locator, *field_types)
field_with_id(locator, *field_types) ||
field_named(locator, *field_types) ||
field_labeled(locator, *field_types) ||
nil
end
def find_select_option(option_text)
select_fields = fields_by_type([SelectField])
select_fields.each do |select_field|
result = select_field.find_option(option_text)
return result if result
end
nil
end
def find_button(value = nil)
return fields_by_type([ButtonField]).first if value.nil?
possible_buttons = fields_by_type([ButtonField])
possible_buttons.detect { |possible_button| possible_button.matches_id?(value) } ||
possible_buttons.detect { |possible_button| possible_button.matches_value?(value) }
end
def fields
return @fields if @fields
@fields = Webrat::XML.css_search(@element, "button", "input", "textarea", "select").collect do |field_element|
Field.class_for_element(field_element).new(self, field_element)
end
end
def labels
@labels ||= element.search("label").map { |element| Label.new(nil, element) }
end
def submit
@session.request_page(form_action, form_method, params)
end
def field_with_id(id, *field_types)
possible_fields = fields_by_type(field_types)
possible_fields.detect { |possible_field| possible_field.matches_id?(id) }
end
def field_named(name, *field_types)
possible_fields = fields_by_type(field_types)
possible_fields.detect { |possible_field| possible_field.matches_name?(name) }
end
def field_labeled(label, *field_types)
possible_fields = fields_by_type(field_types)
matching_fields = possible_fields.select do |possible_field|
possible_field.matches_label?(label)
end
matching_fields.min { |a, b| a.label_text.length <=> b.label_text.length }
end
def label_matching(label_text)
labels.detect { |label| label.matches_text?(label_text) }
end
protected
def fields_by_type(field_types)
if field_types.any?
fields.select { |f| field_types.include?(f.class) }
else
fields
end
end
def params
all_params = {}
fields.each do |field|
next if field.to_param.nil?
merge(all_params, field.to_param)
end
all_params
end
def form_method
@element["method"].blank? ? :get : @element["method"].downcase
end
def form_action
@element["action"].blank? ? @session.current_url : @element["action"]
end
HASH = [Hash, HashWithIndifferentAccess] rescue [Hash]
def merge(all_params, new_param)
new_param.each do |key, value|
case all_params[key]
when *HASH
merge_hash_values(all_params[key], value)
when Array
all_params[key] += value
else
all_params[key] = value
end
end
end
def merge_hash_values(a, b) # :nodoc:
a.keys.each do |k|
if b.has_key?(k)
case [a[k], b[k]].map{|value| value.class}
when [Hash, Hash]
a[k] = merge_hash_values(a[k], b[k])
b.delete(k)
when [Array, Array]
a[k] += b[k]
b.delete(k)
end
end
end
a.merge!(b)
end
end
end