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require 'glimmer/dsl/expression'
require 'glimmer/data_binding/model_binding'
require 'glimmer/data_binding/element_binding'
require 'glimmer/swt/combo_proxy'
module Glimmer
module DSL
module Opal
class ComboSelectionDataBindingExpression < Expression
def can_interpret?(parent, keyword, *args, &block)
keyword == 'selection' and
block.nil? and
(parent.is_a?(Glimmer::SWT::ComboProxy) || parent.is_a?(Glimmer::SWT::CComboProxy)) and
args.size == 1 and
args[0].is_a?(DataBinding::ModelBinding) and
args[0].evaluate_options_property.is_a?(Array)
end
def interpret(parent, keyword, *args, &block)
model_binding = args[0]
#TODO make this options observer dependent and all similar observers in element specific data binding handlers
# TODO consider delegating some of this work
element_binding = DataBinding::ElementBinding.new(parent, 'items')
element_binding.call(model_binding.evaluate_options_property)
model = model_binding.base_model
element_binding.observe(model, model_binding.options_property_name)
element_binding = DataBinding::ElementBinding.new(parent, 'text')
element_binding.call(model_binding.evaluate_property)
element_binding.observe(model, model_binding.property_name_expression)
parent.on_widget_selected do
model_binding.call(element_binding.evaluate_property)
end
end
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems