function _easychart_print_chart in Easychart 7.3

Same name and namespace in other branches

1. 7 easychart.module \_easychart_print_chart()
2. 7.2 easychart.module \_easychart_print_chart()

Helper functions to print the actual chart.

Parameters

$item: The item

$delta: The delta.

Return value

string $output

1 call to _easychart_print_chart()

easychart_field_formatter_view in ./easychart.module

Implements hook_field_formatter_view().

File

./easychart.module, line 402

Easychart module file.

Code

function _easychart_print_chart($item, $delta) {
  global $chart_count;
  $chart_count++;
  $output = '';
  if (!empty($item['config'])) {
    if ($chart_count == 1) {

      // Add the highcharts javascript.
      libraries_load('highcharts');
      libraries_load('easychart', 'render');
    }

    // Print a div and add inline javascript
    $output = '<div id="easychart-chart-' . $chart_count . '">';
    $output .= '</div>';

    // Get the csv data.
    $csv = '';
    if (!empty($item['csv'])) {
      $csv = $item['csv'];
    }
    $inline_js = ' document.addEventListener("DOMContentLoaded", function () {
                     var container = document.getElementById(\'easychart-chart-' . $chart_count . '\');
                     window.easychart = new ec({element: container});';
    $inline_js .= '  window.easychart.setConfigStringified(\'' . $item['config'] . '\');';
    $inline_js .= '  window.easychart.setData(' . $csv . ');';
    if (variable_get('easychart_presets', '') != '') {
      $inline_js .= '  window.easychart.setPresets(' . str_replace('\\r\\n', '', variable_get('easychart_presets', '')) . ');';
    }
    $inline_js .= '})';
    drupal_add_js($inline_js, array(
      'type' => 'inline',
      'scope' => 'footer',
    ));
  }
  return $output;
}