public function FilterTips::preprocessVariables in Express 8

Preprocess the variables array.

Parameters

\Drupal\bootstrap\Utility\Variables $variables: The Variables object.

Overrides PreprocessBase::preprocessVariables

File

themes/contrib/bootstrap/src/Plugin/Preprocess/FilterTips.php, line 27

Contains \Drupal\bootstrap\Plugin\Preprocess\FilterTips.

Class

FilterTips

Pre-processes variables for the "filter_tips" theme hook.

Namespace

Drupal\bootstrap\Plugin\Preprocess

Code

public function preprocessVariables(Variables $variables) {

  /** @var \Drupal\filter\FilterFormatInterface $current_format */
  $current_format = \Drupal::routeMatch()
    ->getParameter('filter_format');
  $current_format_id = $current_format ? $current_format
    ->id() : FALSE;

  // Create a place holder for the tabs.
  $build['tabs'] = [
    '#theme' => 'item_list__filter_tips__tabs',
    '#items' => [],
    '#attributes' => [
      'class' => [
        'nav',
        'nav-tabs',
        'filter-formats',
      ],
      'role' => 'tablist',
    ],
  ];

  // Create a placeholder for the panes.
  $build['panes'] = [
    '#theme_wrappers' => [
      'container__filter_tips__panes',
    ],
    '#attributes' => [
      'class' => [
        'tab-content',
      ],
    ],
  ];
  foreach (filter_formats(\Drupal::currentUser()) as $format_id => $format) {

    // Set the current format ID to the first format.
    if (!$current_format_id) {
      $current_format_id = $format_id;
    }
    $tab = [
      '#type' => 'link',
      '#title' => $format
        ->label(),
      '#url' => Url::fromRoute('filter.tips', [
        'filter_format' => $format_id,
      ]),
      '#attributes' => [
        'role' => 'tab',
        'data-toggle' => 'tab',
        'data-target' => "#{$format_id}",
      ],
    ];
    if ($current_format_id === $format_id) {
      $tab['#wrapper_attributes']['class'][] = 'active';
    }
    $build['tabs']['#items'][] = $tab;
    $tips = [];

    // Iterate over each format's enabled filters.

    /** @var \Drupal\filter\Plugin\FilterBase $filter */
    foreach ($format
      ->filters() as $name => $filter) {

      // Ignore filters that are not enabled.
      if (!$filter->status) {
        continue;
      }
      $tip = $filter
        ->tips(TRUE);
      if (isset($tip)) {
        $tips[] = [
          '#markup' => $tip,
        ];
      }
    }

    // Construct the pane.
    $pane = [
      '#theme_wrappers' => [
        'container__filter_tips',
      ],
      '#attributes' => [
        'class' => [
          'tab-pane',
          'fade',
        ],
        'id' => $format_id,
      ],
      'list' => [
        '#theme' => 'item_list',
        '#items' => $tips,
      ],
    ];
    if ($current_format_id === $format_id) {
      $pane['#attributes']['class'][] = 'active';
      $pane['#attributes']['class'][] = 'in';
    }
    $build['panes'][] = $pane;
  }
  $variables['tips'] = $build;
}