Class: InlineJavaScript

Inherits:
Object
  • Object
show all
Defined in:
lib/inline_java_script.rb,
ext/inline_java_script_v8_wrapper/inline_java_script_v8_wrapper.cc

Defined Under Namespace

Classes: V8Wrapper

Constant Summary collapse

VERSION = 
'0.1'

Instance Method Summary collapse

Constructor Details

#initialize(javascript_functions) ⇒ InlineJavaScript

Takes a string containing some JavaScript and executes it. The state is maintained. JavaScript functions defined in the string can be called directly from an instance of InlineJavaScript as if they were methods.



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# File 'lib/inline_java_script.rb', line 25

def initialize javascript_functions
  require File.join(File.dirname(__FILE__), %w{.. ext inline_java_script_v8_wrapper inline_java_script_v8_wrapper})

  @wrapper = InlineJavaScript::V8Wrapper.new
  @wrapper.execute(javascript_functions)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *arguments, &unused_block) ⇒ Object

Attempts to call whatever JavaScript function you defined in the constructor. It will accept any number of parameters of String, Fixnum, Array or Hash and can support returning the same from JavaScript.



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# File 'lib/inline_java_script.rb', line 36

def method_missing(method, *arguments, &unused_block)
  json_arguments = arguments.map do |arg|
    "JSON.parse(" + arg.to_json.to_json + ")"
  end

  JSON[@wrapper.execute("JSON.stringify({result: #{method}(#{json_arguments.join(',')})})")]['result']
end