function template_preprocess_isotope_grid in Isotope (with Masonry and Packery) 8

Prepares variables for isotope grid template.

Parameters

array $variables: An associative array of variables.

File

./isotope.theme.inc, line 20

Preprocessors of isotope module.

Code

function template_preprocess_isotope_grid(&$variables) {
  $presentation = Presentation::load($variables['presentation']);

  // Assemble list of libraries to attach.
  $plugins = [
    $presentation->layout_mode,
  ];
  $plugins = array_merge($plugins, array_values($presentation->plugins));
  $libraries = array_values(IsotopeController::libraryMapping($plugins));
  $libraries[] = 'isotope/isotope';

  // Add the sorting options to the initial presentation.
  $additional_settings = [
    'getSortData' => [],
  ];
  foreach ($variables['items'] as $item) {
    $item['data'] = !empty($item['data']) ? $item['data'] : [];
    foreach ($item['data'] as $key => $value) {
      $additional_settings['getSortData'][$key] = '.' . $key;
    }
  }

  // Retrieve the desired configuration (plus sorting options).
  $presentation_json = $presentation
    ->toJSON($additional_settings);

  // Make sure the instance name is unique per page load.
  $instance_name = 0;
  $global_instances =& drupal_static(__FUNCTION__);
  $global_instances = isset($global_instances) ? $global_instances : [];
  if (!empty($variables['instance']) && !in_array($variables['instance'], $global_instances)) {
    $instance_name = $variables['instance'];
  }
  else {
    for ($i = 0; $i >= 0; $i++) {
      if (!in_array($i, $global_instances)) {
        $instance_name = $i;

        // Break the infinite loop when successful.
        break;
      }
    }
  }
  $global_instances[] = $instance_name;
  $instance = 'isotope-instance-' . $instance_name;
  $items = [
    [
      '#markup' => '',
      '#wrapper_attributes' => [
        'class' => [
          'js-isotope-grid-sizer',
        ],
      ],
    ],
    [
      '#markup' => '',
      '#wrapper_attributes' => [
        'class' => [
          'js-isotope-gutter-sizer',
        ],
      ],
    ],
  ];
  foreach ($variables['items'] as $item) {
    $sorts = '';
    $item['data'] = !empty($item['data']) ? $item['data'] : [];
    foreach ($item['data'] as $key => $value) {
      if (!is_array($value)) {
        $value = [
          $value,
        ];
      }
      foreach ($value as $sort) {
        $sorts .= '<div class="js-sort-data ' . $key . '">' . IsotopeController::sanitize($sort) . '</div>';
      }

      // Sanitize value for the class name below.
      $item['data'][$key] = IsotopeController::sanitize($value);
    }
    $classes = array_values($item['data']);
    $classes[] = 'js-isotope-element';
    $items[] = [
      '#markup' => $item['value'] . $sorts,
      '#wrapper_attributes' => [
        'class' => $classes,
      ],
    ];
  }
  $variables['grid'] = [
    '#theme' => 'item_list',
    '#items' => $items,
    '#type' => 'ul',
    '#attributes' => [
      'class' => 'js-isotope-grid',
      'id' => $instance,
      'data-isotope' => $presentation_json,
    ],
    '#attached' => [
      'library' => $libraries,
    ],
  ];
}