public function Google::preRender in Charts 5.0.x

Same name and namespace in other branches

1. 8.4 modules/charts_google/src/Plugin/chart/Library/Google.php \Drupal\charts_google\Plugin\chart\Library\Google::preRender()

Pre render.

Parameters

array $element: The element.

Return value

array The chart element.

Overrides ChartInterface::preRender

File

modules/charts_google/src/Plugin/chart/Library/Google.php, line 44

Class

Google

Define a concrete class for a Chart.

Namespace

Drupal\charts_google\Plugin\chart\Library

Code

public function preRender(array $element) {
  $chart_definition = [];

  // Convert the chart renderable to a proper definition.
  $chart_definition['visualization'] = $this
    ->chartsGoogleVisualizationType($element['#chart_type']);
  $chart_definition = $this
    ->chartsGooglePopulateChartOptions($element, $chart_definition);
  $chart_definition = $this
    ->chartsGooglePopulateChartAxes($element, $chart_definition);
  $chart_definition = $this
    ->chartsGooglePopulateChartData($element, $chart_definition);
  if (!isset($element['#id'])) {
    $element['#id'] = Html::getUniqueId('google-chart-render');
  }

  // Trim out empty options.
  ChartElement::trimArray($chart_definition['options']);
  $element['#attached']['library'][] = 'charts_google/google';
  $element['#attributes']['class'][] = 'charts-google';
  $element['#chart_definition'] = $chart_definition;
  return $element;
}