public function PagererStyleBase::preprocess in Pagerer 8

Same name and namespace in other branches

1. 8.2 src/Plugin/pagerer/PagererStyleBase.php \Drupal\pagerer\Plugin\pagerer\PagererStyleBase::preprocess()

Prepares to render the pager.

Parameters

array $variables: An associative array containing:

• style: The PagererStyle plugin id to be used to render the pager. Only for base style plugins.
• element: An optional integer to distinguish between multiple pagers on one page.
• parameters: An associative array of query string parameters to append to the pager links.
• config: An associative array of configuration elements for the pager style.

Overrides PagererStyleInterface::preprocess

File

src/Plugin/pagerer/PagererStyleBase.php, line 403

Class

PagererStyleBase

Base plugin for Pagerer.

Namespace

Drupal\pagerer\Plugin\pagerer

Code

public function preprocess(array &$variables) {

  // Save theme requested query parameters.
  $this->parameters = $variables['pager']['#parameters'];

  // Check if pager is needed; if not, return immediately.
  if ($this->pager
    ->getTotalPages() < $this
    ->getOption('display_restriction')) {
    return;
  }
  if ($this->pager
    ->getTotalPages() == 0) {

    // Manage empty pageset.
    $items['pages'] = $this
      ->buildEmptyPager();
  }
  else {

    // Compose pager.
    $items = [];

    // 1 - First + previous links.
    if ($this
      ->getOption('first_link') == 'always' or $this
      ->getOption('first_link') == 'not_on_first' and $this->pager
      ->getCurrentPage() != 0) {
      $items['first'] = $this
        ->getNavigationItem('first');
    }
    if ($this
      ->getOption('previous_link') == 'always' or $this
      ->getOption('previous_link') == 'not_on_first' and $this->pager
      ->getCurrentPage() != 0) {
      $items['previous'] = $this
        ->getNavigationItem('previous');
    }

    // 2 - Prefix.
    if ($this
      ->getOption('prefix_display')) {
      $items['prefix'] = [
        'text' => $this
          ->getDisplayTag('prefix_label'),
        'attributes' => new Attribute(),
      ];
    }

    // 3 - Pager.
    $items['pages'] = $this
      ->buildPagerItems();

    // 4 - Suffix.
    if ($this
      ->getOption('suffix_display')) {
      $items['suffix'] = [
        'text' => $this
          ->getDisplayTag('suffix_label'),
        'attributes' => new Attribute(),
      ];
    }

    // 5 - Next + last links.
    if ($this
      ->getOption('next_link') == 'always' or $this
      ->getOption('next_link') == 'not_on_last' and $this->pager
      ->getCurrentPage() != $this->pager
      ->getLastPage()) {
      $items['next'] = $this
        ->getNavigationItem('next');
    }
    if ($this
      ->getOption('last_link') == 'always' or $this
      ->getOption('last_link') == 'not_on_last' and $this->pager
      ->getCurrentPage() != $this->pager
      ->getLastPage()) {
      $items['last'] = $this
        ->getNavigationItem('last');
    }
  }

  // Pager items list.
  $variables['items'] = $items;
}