function easychart_field_widget_form in Easychart 7.3

Same name and namespace in other branches

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

Implements hook_field_widget_form().

File

./easychart.module, line 146

Easychart module file.

Code

function easychart_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
  switch ($instance['widget']['type']) {
    case 'easychart':
      $required = $element['#required'];

      // Send Easychart configuration to the Easychart admin interface.
      $options = '';
      if (file_exists('public://easychart-options.json')) {
        $options = file_get_contents('public://easychart-options.json');
      }
      $settings = array(
        'easychartOptions' => $options,
        'easychartTemplates' => variable_get('easychart_templates', ''),
        'easychartPresets' => variable_get('easychart_presets', ''),
        'easychartCustomize' => FALSE,
      );
      if (user_access('access full easychart configuration')) {
        $settings['easychartCustomize'] = TRUE;
      }
      drupal_add_js(array(
        'easychart' => $settings,
      ), 'setting');

      // Wrapper to add the required javascript and css.
      $element = array(
        '#prefix' => '<div class="easychart-wrapper clearfix">',
        '#suffix' => '</div>',
        '#attached' => array(
          // Add highcharts plugin.
          'libraries_load' => array(
            array(
              'highcharts',
            ),
            array(
              'easychart',
            ),
          ),
          'js' => array(
            drupal_get_path('module', 'easychart') . '/js/easychart.widget.js',
            drupal_get_path('module', 'easychart') . '/js/screenfull.min.js',
            drupal_get_path('module', 'easychart') . '/js/handsontable.full.min.js',
          ),
          'css' => array(
            drupal_get_path('module', 'easychart') . '/css/easychart.widget.css',
            drupal_get_path('module', 'easychart') . '/css/handsontable.full.min.css',
          ),
        ),
      );

      // Hidden fields with the chart data.
      $element['config'] = array(
        '#description' => t('The configuration options as described at http://api.highcharts.com/highcharts'),
        '#type' => 'hidden',
        '#default_value' => isset($items[$delta]['config']) ? $items[$delta]['config'] : NULL,
        '#attributes' => array(
          'class' => array(
            'easychart-config',
          ),
        ),
      );
      $element['csv'] = array(
        '#description' => t('Your chart data in CSV format'),
        '#type' => 'hidden',
        '#default_value' => isset($items[$delta]['csv']) ? $items[$delta]['csv'] : NULL,
        '#attributes' => array(
          'class' => array(
            'easychart-csv',
          ),
        ),
        '#element_validate' => array(
          'easychart_field_csv_validate',
        ),
        '#csv_required' => $required,
      );
      $element['csv_url'] = array(
        '#description' => t('The URL to a CSV file'),
        '#type' => 'hidden',
        '#default_value' => isset($items[$delta]['csv_url']) ? $items[$delta]['csv_url'] : NULL,
        '#attributes' => array(
          'class' => array(
            'easychart-csv-url',
          ),
        ),
      );

      // Placeholder to embed the Easychart plugin.
      $element['preview'] = array(
        '#title' => t('Easychart'),
        '#markup' => '',
        '#prefix' => '<div class="easychart-embed"><div class="easychart-header"><span class="toggle">' . t('Toggle Fullscreen') . '</span></div>',
        '#suffix' => '</div>',
      );
      break;
  }
  return $element;
}