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Contents
require 'glimmer/data_binding/observable'
require 'glimmer/data_binding/observer'
require 'glimmer/swt/display_proxy'
# This ensures all data-binding events happen async and block on modal display
module Glimmer
module DataBinding
# TODO prefix utility methods with double-underscore
module ObservableModel
include Observable
# include Glimmer
def add_property_writer_observers(property_name)
property_writer_name = "#{property_name}="
method(property_writer_name)
ensure_array_object_observer(property_name, send(property_name))
begin
method("__original_#{property_writer_name}")
rescue
old_method = self.class.instance_method(property_writer_name)
define_singleton_method("__original_#{property_writer_name}", old_method)
define_singleton_method(property_writer_name) do |value|
old_value = self.send(property_name)
unregister_dependent_observers(property_name, old_value)
self.send("__original_#{property_writer_name}", value)
# Glimmer::Opal::DisplayProxy.instance.async_exec do
notify_observers(property_name)
ensure_array_object_observer(property_name, value, old_value)
# end
end
end
rescue => e
# ignore writing if no property writer exists
Glimmer::Config.logger&.debug "No need to observe property writer: #{property_writer_name}\n#{e.message}\n#{e.backtrace.join("\n")}"
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems