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require 'glimmer/dsl/expression'
require 'glimmer/data_binding/model_binding'
require 'glimmer/data_binding/tree_items_binding'
module Glimmer
module DSL
module SWT
class TreeItemsDataBindingExpression < Expression
include_package 'org.eclipse.swt.widgets'
def can_interpret?(parent, keyword, *args, &block)
initial_condition = ((keyword == "items") and block.nil? and parent.respond_to?(:swt_widget) and parent.swt_widget.is_a?(Tree))
return false unless initial_condition
raise Glimmer::Error, 'Tree items args must be 2' unless args.size == 2
raise Glimmer::Error, 'Tree items first arg must be a bind expression' unless args[0].is_a?(DataBinding::ModelBinding)
raise Glimmer::Error, 'Tree items data-binding initial value must not be an array yet a single item representing tree root' unless !args[0].evaluate_property.is_a?(Array)
raise Glimmer::Error, 'Tree items second arg must be an array' unless args[1].is_a?(Array)
raise Glimmer::Error, 'Tree items second arg must not be empty' unless !args[1].empty?
raise Glimmer::Error, 'Tree items second arg array elements must be of type hash' unless args[1].first.is_a?(Hash)
true
end
def interpret(parent, keyword, *args, &block)
model_binding = args[0]
tree_properties = args[1]
DataBinding::TreeItemsBinding.new(parent, model_binding, tree_properties)
end
end
end
end
end
Version data entries
30 entries across 30 versions & 1 rubygems