Module: Heartml::ServerEffects

Included in:
Heartml
Defined in:
lib/heartml/server_effects.rb

Defined Under Namespace

Modules: ClassMethods, JSPropertyAliases

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included_extras(klass) ⇒ void

This method returns an undefined value.

Parameters:

  • klass (Class) 


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# File 'lib/heartml/server_effects.rb', line 39

def self.included_extras(klass) # rubocop:disable Metrics
  klass.attribute_binding "server-effect", :_server_effect_binding
  klass.attribute_binding "iso-effect", :_iso_effect_binding

  klass.singleton_class.attr_reader :directives

  klass.extend ClassMethods

  klass.class_eval do
    directive :show, ->(_, node, value) { node["hidden"] = "" unless value }

    directive :hide, ->(_, node, value) { node["hidden"] = "" if value }

    directive :classMap, ->(_, node, obj) {
      obj.each do |k, v|
        node.add_class k.to_s if v
      end
    }

    directive :attribute, ->(_, node, name, value) {
      node[name] = value if name.match?(%r{^aria[A-Z-]}) || value
    }

    directive :appendUnsafe, ->(_, node, value) {
      node.swap(value.is_a?(Nokolexbor::Node) ? value : value.to_s)
    }

    directive :append, ->(_, node, value) {
      span = node.document.create_element("span")
      span.content = value.to_s
      node.swap(span.inner_html)
    }
  end
end

Instance Method Details

#_convert_effect_arg_to_value(arg_str, node) ⇒ Object 



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# File 'lib/heartml/server_effects.rb', line 128

def _convert_effect_arg_to_value(arg_str, node)
  return node if arg_str == "@"

  return arg_str[1...-1] if arg_str.start_with?("'") # string literal

  if arg_str.match(/^[0-9]/)
    return arg_str.include?(".") ? arg_str.to_f : arg_str.to_i
  end

  send(arg_str[1..])
end

#_iso_effect_binding(attribute:, node:) ⇒ Object

rubocop:disable Metrics



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# File 'lib/heartml/server_effects.rb', line 79

def _iso_effect_binding(attribute:, node:) # rubocop:disable Metrics
  syntax = attribute.value
  statements = syntax.split(";").map(&:strip)

  statements.each do |statement| # rubocop:disable Metrics
    if statement.start_with?(".")
      # shortcut for text content
      statement = "@textContent=#{statement}"
    end

    if statement.start_with?("@")
      # property assignment
      expression = statement.split("=").map(&:strip)
      expression[0] = expression[0][1..]

      value = send(expression[1][1..])
      attribute_value = if expression[0].match?(%r{^aria[A-Z-]}) && [true, false].include?(value)
                          value
                        else
                          value_to_attribute(value)
                        end

      node.send("#{expression[0]}=", attribute_value) unless attribute_value.nil?
    elsif statement.start_with?("$")
      # directive
      directive_name, args_str = statement.strip.match(/(.*)\((.*)\)/).captures
      arg_strs = args_str.split(",").map(&:strip)
      arg_strs.unshift("@")

      if self.class.directives[directive_name.strip[1..]]
        args = arg_strs.map { _convert_effect_arg_to_value _1, node }

        self.class.directives[directive_name.strip[1..]]&.(self, *args)
      end
    else
      # method call
      method_name, args_str = statement.strip.match(/(.*)\((.*)\)/).captures
      arg_strs = args_str.split(",").map(&:strip)
      arg_strs.unshift("@")

      args = arg_strs.map { _convert_effect_arg_to_value _1, node }

      send(method_name.strip, *args)
    end

    attribute.name = "host-lazy-effect"
  end
end

#_server_effect_binding(attribute:, node:) ⇒ Object 



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# File 'lib/heartml/server_effects.rb', line 74

def _server_effect_binding(attribute:, node:)
  _iso_effect_binding(attribute:, node:)
  node.remove_attribute "host-lazy-effect"
end