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Versions: 7
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Contents
require File.dirname(__FILE__) + "/../command_handler"
require File.dirname(__FILE__) + "/models/r_widget"
require File.dirname(__FILE__) + "/models/list_observer"
class ListSelectionDataBindingCommandHandler
include CommandHandler
include Glimmer
include_package 'org.eclipse.swt.widgets'
def can_handle?(parent, command_symbol, *args, &block)
parent.is_a?(RWidget) and
parent.widget.is_a?(List) and
command_symbol.to_s == "selection" and
args.size == 1 and
args[0].is_a?(ModelObserver) and
args[0].evaluate_options_property.is_a?(Array) and
block == nil
end
def do_handle(parent, command_symbol, *args, &block)
model_observer = args[0]
widget_observer = WidgetObserver.new(parent, "items")
widget_observer.update(model_observer.evaluate_options_property)
model = model_observer.model
model.extend ObservableModel unless model.is_a?(ObservableModel)
model.add_observer(model_observer.options_property_name, widget_observer)
property_type = :string
property_type = :array if parent.has_style?(:multi)
list_observer = ListObserver.new(parent, property_type)
list_observer.update(model_observer.evaluate_property)
model.add_observer(model_observer.property_name, list_observer)
add_contents(parent) {
on_widget_selected {
model_observer.update(list_observer.evaluate_property)
}
}
end
end
Version data entries
7 entries across 7 versions & 1 rubygems