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require 'glimmer' require 'glimmer/data_binding/observable' require 'glimmer/data_binding/observer' module Glimmer module DataBinding # SWT List widget selection binding class ListSelectionBinding include Glimmer include Observable include Observer attr_reader :widget_proxy PROPERTY_TYPE_UPDATERS = { :string => lambda { |widget_proxy, value| widget_proxy.swt_widget.select(widget_proxy.swt_widget.index_of(value.to_s)) }, :array => lambda { |widget_proxy, value| widget_proxy.swt_widget.selection=(value || []).to_java(:string) } } PROPERTY_EVALUATORS = { :string => lambda do |selection_array| return nil if selection_array.empty? selection_array[0] end, :array => lambda do |selection_array| selection_array end } # Initialize with list widget and property_type # property_type :string represents default list single selection # property_type :array represents list multi selection def initialize(widget_proxy, property_type) property_type = :string if property_type.nil? or property_type == :undefined @widget_proxy = widget_proxy @property_type = property_type @widget_proxy.on_widget_disposed do |dispose_event| unregister_all_observables end end def call(value) PROPERTY_TYPE_UPDATERS[@property_type].call(@widget_proxy, value) unless evaluate_property == value end def evaluate_property selection_array = @widget_proxy.swt_widget.send('selection').to_a #TODO refactor send('selection') into proper method invocation PROPERTY_EVALUATORS[@property_type].call(selection_array) end end end end
Version data entries
19 entries across 19 versions & 2 rubygems