show_in_html and show_in_iruby methods added

Gemfile

@@ -7,4 +7,7 @@ group :development do
   gem "rspec", "~> 2.99.0"
   gem "appraisal"
   gem "rails", "~> 4.2.1"
+  gem 'json'
+  gem 'byebug'
+  gem 'iruby'
 end

lib/google_visualr.rb

@@ -2,6 +2,8 @@
 
 # Common
 require "#{lib_path}/google_visualr/param_helpers"
+require "#{lib_path}/google_visualr/display"
+require "#{lib_path}/google_visualr/iruby_notebook"
 
 # Base Classes
 require "#{lib_path}/google_visualr/data_table"

lib/google_visualr/base_chart.rb

@@ -2,6 +2,7 @@ module GoogleVisualr
 
   class BaseChart
     include GoogleVisualr::ParamHelpers
+    include GoogleVisualr::Display
 
     DEFAULT_VERSION = "1.0".freeze
 
@@ -95,6 +96,15 @@ def draw_js(element_id)
       js << "\n  };"
       js
     end
+
+    def show_in_html(dom=nil)
+      show_html(self, dom)
+    end
+
+    def show_in_iruby(dom=nil)
+      show_iruby(self, dom)
+    end
+
   end
 
 end

lib/google_visualr/data_table.rb

@@ -1,3 +1,4 @@
+require 'json'
 module GoogleVisualr
 
   class DataTable

lib/google_visualr/display.rb

@@ -0,0 +1,32 @@
+require 'securerandom'
+require 'erb'
+
+module GoogleVisualr
+  module Display
+
+    def show_script(chart, dom=nil, options={})
+      script_tag = options.fetch(:script_tag) { true }
+      if script_tag
+        chart.to_js(dom)
+      else
+        html = ""
+        html << chart.load_js(dom)
+        html << chart.draw_js(dom)
+        html
+      end
+    end
+
+    def show_html(chart, id=nil, options={})
+      path = File.expand_path("../templates/chart_div.erb", __FILE__)
+      template = File.read(path)
+      id ||= SecureRandom.uuid()
+      chart_script = show_script(chart, id, script_tag: false)
+      ERB.new(template).result(binding)
+    end
+
+    def show_iruby(chart, dom=nil)
+      IRuby.html(show_html(chart, dom))
+    end
+
+  end
+end

lib/google_visualr/iruby_notebook.rb

@@ -0,0 +1,17 @@
+module GoogleVisualr
+
+  # generate initializing code
+  def self.generate_init_code
+    js_dir = File.expand_path("../js", __FILE__)
+    path = File.expand_path("../templates/init.inline.js.erb", __FILE__)
+    template = File.read(path)
+    ERB.new(template).result(binding)
+  end
+
+  # Enable to show plots on IRuby notebook
+  def self.init_iruby
+    js = self.generate_init_code
+    IRuby.display(IRuby.javascript(js))
+  end
+
+end

lib/google_visualr/notebook_example/Gemfile

@@ -0,0 +1,8 @@
+source "http://rubygems.org"
+
+# iruby dependencies
+gem 'rbczmq'
+gem 'ffi-rzmq'
+gem 'iruby'
+
+gemspec  :path => '../../../'

lib/google_visualr/notebook_example/Gemfile.lock

@@ -0,0 +1,35 @@
+PATH
+  remote: ../../..
+  specs:
+    google_visualr (2.5.1)
+
+GEM
+  remote: http://rubygems.org/
+  specs:
+    bond (0.5.1)
+    data_uri (0.1.0)
+    ffi (1.9.18)
+    ffi-rzmq (2.0.5)
+      ffi-rzmq-core (>= 1.0.6)
+    ffi-rzmq-core (1.0.6)
+      ffi
+    iruby (0.3)
+      bond (~> 0.5)
+      data_uri (~> 0.1)
+      mimemagic (~> 0.3)
+      multi_json (~> 1.11)
+    mimemagic (0.3.2)
+    multi_json (1.12.1)
+    rbczmq (1.7.9)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  ffi-rzmq
+  google_visualr!
+  iruby
+  rbczmq
+
+BUNDLED WITH
+   1.15.1

lib/google_visualr/param_helpers.rb

@@ -1,3 +1,4 @@
+require 'date'
 module GoogleVisualr
 
   module ParamHelpers

lib/google_visualr/templates/chart_div.erb

@@ -0,0 +1,4 @@
+<div id='<%= id %>'></div>
+<script>
+<%= chart_script %>
+</script>

lib/google_visualr/templates/init.inline.js.erb

@@ -0,0 +1,15 @@
+
+<%
+Dir.foreach(js_dir) do |item|
+  next if item == '.' or item == '..'
+  contents = IO.read(File.join(js_dir, item), mode: 'r:UTF-8')
+%>
+  /* BEGIN <%= item %>.js */
+<%= contents %>
+  /* END <%= item %>.js */
+<% end %>
+
+var event = document.createEvent("HTMLEvents");
+event.initEvent("load_googlecharts", false, false);
+window.dispatchEvent(event);
+console.log("Finish loading google chart js");