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#
#  tkextlib/tcllib/validator.rb
#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
#
#   * Part of tcllib extension
#   * Provides a unified validation API
#

require 'tk'
require 'tkextlib/tcllib.rb'

# TkPackage.require('widget::validator', '0.1')
TkPackage.require('widget::validator')

module Tk::Tcllib
  module Validator
    PACKAGE_NAME = 'widget::validator'.freeze
    def self.package_name
      PACKAGE_NAME
    end

    def self.package_version
      begin
        TkPackage.require('widget::validator')
      rescue
        ''
      end
    end
  end
end

module Tk::Tcllib::Validator
  extend TkCore

  def self.attach(widget, color, cmd=Proc.new)
    tk_call_without_enc('::widget::validator', 'attach', widget, color, cmd)
    nil
  end

  def self.detach(widget)
    tk_call_without_enc('::widget::validator', 'detach', widget)
    nil
  end

  def self.validate(widget)
    tk_call_without_enc('::widget::validator', 'validate', widget)
    nil
  end

  def attach_validator(color, cmd=Proc.new)
    tk_call_without_enc('::widget::validator', 'attach', @path, color, cmd)
    self
  end

  def detach_validator(color, cmd=Proc.new)
    tk_call_without_enc('::widget::validator', 'detach', @path)
    self
  end

  def invoke_validator(color, cmd=Proc.new)
    tk_call_without_enc('::widget::validator', 'validate', @path)
    self
  end
  alias validate_validator invoke_validator
end