Module: LazyHighCharts::LayoutHelper

Includes:
ActionView::Helpers::TagHelper
Included in:
HighChart
Defined in:
lib/lazy_high_charts/layout_helper.rb

Instance Method Summary collapse

Instance Method Details

#build_html_output(type, placeholder, object, &block) ⇒ Object 



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# File 'lib/lazy_high_charts/layout_helper.rb', line 27

def build_html_output(type, placeholder, object, &block)
  options_collection = [generate_json_from_hash(OptionsKeyFilter.filter(object.options))]
  options_collection << %|"series": [#{generate_json_from_array(object.series_data)}]|

  core_js =<<-EOJS
    var options = { #{options_collection.join(',')} };
    #{capture(&block) if block_given?}
    window.chart_#{placeholder.underscore} = new Highcharts.#{type}(options);
  EOJS

  if defined?(request) && request.respond_to?(:xhr?) && request.xhr?
    graph =<<-EOJS
    <script type="text/javascript">
    (function() {
      #{core_js}
    })()
    </script>
    EOJS
  elsif defined?(Turbolinks) && request.headers["X-XHR-Referer"]
    graph =<<-EOJS
    <script type="text/javascript">
    (function() {
      var f = function(){
        document.removeEventListener('page:load', f, true);
        #{core_js}
      };
      document.addEventListener('page:load', f, true);
    })()
    </script>
    EOJS
  else
    graph =<<-EOJS
    <script type="text/javascript">
    (function() {
      var onload = window.onload;
      window.onload = function(){
        if (typeof onload == "function") onload();
        #{core_js}
      };
    })()
    </script>
    EOJS
  end

  if defined?(raw)
    return raw(graph)
  else
    return graph
  end

end

#high_chart(placeholder, object, &block) ⇒ Object 



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# File 'lib/lazy_high_charts/layout_helper.rb', line 7

def high_chart(placeholder, object, &block)
  object.html_options.merge!({:id => placeholder})
  object.options[:chart][:renderTo] = placeholder
  high_graph(placeholder, object, &block).concat(content_tag("div", "", object.html_options))
end

#high_graph(placeholder, object, &block) ⇒ Object 



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# File 'lib/lazy_high_charts/layout_helper.rb', line 19

def high_graph(placeholder, object, &block)
  build_html_output("Chart", placeholder, object, &block)
end

#high_graph_stock(placeholder, object, &block) ⇒ Object 



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# File 'lib/lazy_high_charts/layout_helper.rb', line 23

def high_graph_stock(placeholder, object, &block)
  build_html_output("StockChart", placeholder, object, &block)
end

#high_stock(placeholder, object, &block) ⇒ Object 



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# File 'lib/lazy_high_charts/layout_helper.rb', line 13

def high_stock(placeholder, object, &block)
  object.html_options.merge!({:id => placeholder})
  object.options[:chart][:renderTo] = placeholder
  high_graph_stock(placeholder, object, &block).concat(content_tag("div", "", object.html_options))
end