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Contents
require 'avatar/source/abstract_source'
module Avatar
module Source
module Wrapper
class AbstractSourceWrapper
include Avatar::Source::AbstractSource
attr_reader :underlying_source
# Create a new Wrapper
def initialize(underlying_source)
raise ArgumentError.new("underlying_source must be Source") unless underlying_source.kind_of?(Avatar::Source::AbstractSource)
@underlying_source = underlying_source
end
# Return nil if the underlying_source does; otherwise, calls <code>wrap</code>,
# passing the returned URL and the person and options passed.
def avatar_url_for(person, options = {})
url = @underlying_source.avatar_url_for(person, options)
url.nil? ? nil : wrap(url, person, options)
end
# Apply appropriate wrapping of the +url+ returned by <code>underlying_source</code>.
# Will never be called with a nil +url+.
def wrap(url, person, options)
raise NotImplementedError('subclasses must override wrap(url, person, options)')
end
end
end
end
end
Version data entries
5 entries across 5 versions & 3 rubygems