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Contents
require 'glimmer/data_binding/observable'
require 'glimmer/data_binding/observer'
module Glimmer
module DataBinding
class ElementBinding
include Glimmer
include Observable
include Observer
attr_reader :element, :property
def initialize(element, property, translator = nil)
@element = element
@property = property
@translator = translator || proc {|value| value}
# TODO implement automatic cleanup upon calling element.remove
# Alternatively, have this be built into ElementProxy and remove this code
# if @element.respond_to?(:dispose)
# @element.on_widget_disposed do |dispose_event|
# unregister_all_observables
# end
# end
end
def call(value)
converted_value = translated_value = @translator.call(value, evaluate_property)
@element.send("#{@property}=", converted_value) unless evaluate_property == converted_value
end
def evaluate_property
@element.send(@property)
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems