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require "webrat/core/locators/locator"
module Webrat
module Locators
class LinkLocator < Locator # :nodoc:
def locate
Link.load(@session, link_element)
end
def link_element
matching_links.min { |a, b|
a_score = a.inner_text =~ matcher ? a.inner_text.length : 100
b_score = b.inner_text =~ matcher ? b.inner_text.length : 100
a_score <=> b_score
}
end
def matching_links
@matching_links ||= link_elements.select do |link_element|
matches_text?(link_element) ||
matches_id?(link_element)
end
end
def matches_text?(link)
replace_nbsp(link.inner_text) =~ matcher ||
replace_nbsp_ref(link.inner_html) =~ matcher ||
link["title"] =~ matcher
end
def matcher
@matcher ||= begin
if @value.is_a?(Regexp)
@value
else
/#{Regexp.escape(@value.to_s)}/i
end
end
end
def matches_id?(link)
if @value.is_a?(Regexp)
link["id"] =~ @value ? true : false
else
link["id"] == @value ? true : false
end
end
def link_elements
@dom.xpath(*Link.xpath_search)
end
def replace_nbsp(str)
if str.respond_to?(:valid_encoding?)
if str.valid_encoding?
str.gsub(/\xc2\xa0/u, ' ')
else
str.force_encoding('UTF-8').gsub(/\xc2\xa0/u, ' ')
end
else
str.gsub(/\xc2\xa0/u, ' ')
end
end
def replace_nbsp_ref(str)
str.gsub('&#xA0;',' ').gsub('&nbsp;', ' ')
end
def error_message
"Could not find link with text or title or id #{@value.inspect}"
end
end
def find_link(text_or_title_or_id) #:nodoc:
LinkLocator.new(@session, dom, text_or_title_or_id).locate!
end
end
end
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