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Contents
# Copyright (c) 2020-2022 Andy Maleh
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
require 'glimmer/dsl/expression'
require 'glimmer/tk/widget_proxy'
module Glimmer
module DSL
module Tk
class VariableListenerExpression < Expression
def can_interpret?(parent, keyword, *args, &block)
parent.is_a?(Glimmer::Tk::WidgetProxy) && keyword.match(/^on_.*/) && textual?(args.first)
end
def interpret(parent, keyword, *args, &block)
variable_name = keyword.sub(/^on_/, '')
operation = args.first.to_s
parent.tk.send(variable_name).trace(operation, &block)
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems