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require 'glimmer/dsl/expression'
require 'glimmer/data_binding/model_binding'
require 'glimmer/data_binding/widget_binding'
module Glimmer
module DSL
module SWT
class ComboSelectionDataBindingExpression < Expression
include_package 'org.eclipse.swt.widgets'
def can_interpret?(parent, keyword, *args, &block)
keyword == 'selection' and
block.nil? and
widget?(parent) and
parent.swt_widget.is_a?(Combo) 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 widget specific data binding handlers
# TODO consider delegating some of this work
widget_binding = DataBinding::WidgetBinding.new(parent, 'items')
widget_binding.call(model_binding.evaluate_options_property)
model = model_binding.base_model
widget_binding.observe(model, model_binding.options_property_name)
widget_binding = DataBinding::WidgetBinding.new(parent, 'text')
widget_binding.call(model_binding.evaluate_property)
widget_binding.observe(model, model_binding.property_name_expression)
parent.on_widget_selected do
model_binding.call(widget_binding.evaluate_property)
end
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems