BlazyGrid.php in Blazy 7

Namespace

Drupal\blazy

File

src/BlazyGrid.php

<?php

namespace Drupal\blazy;


/**
 * Provides grid utilities.
 */
class BlazyGrid {

  /**
   * Returns items wrapped by theme_item_list(), can be a grid, or plain list.
   *
   * @param array $items
   *   The grid items being modified.
   * @param array $settings
   *   The given settings.
   *
   * @return array
   *   The modified array of grid items.
   *
   * @todo implement cache.
   */
  public static function build(array $items = [], array $settings = []) {
    $settings += BlazyDefault::gridSettings() + BlazyDefault::htmlSettings();
    $is_grid = isset($settings['_grid']) ? $settings['_grid'] : !empty($settings['style']) && !empty($settings['grid']);
    $class_item = $is_grid ? 'grid' : 'blazy__item';
    $contents = [];
    foreach ($items as $delta => $item) {
      $attributes = [];

      // Support non-Blazy which normally uses item_id.
      if (is_array($item)) {
        $attributes = isset($item['attributes']) ? $item['attributes'] : [];
        $item_settings = isset($item['settings']) ? $item['settings'] : $settings;
        $item_settings = isset($item['#build']) && isset($item['#build']['settings']) ? $item['#build']['settings'] : $item_settings;
        if (isset($item['#build']) && isset($item['#build']['settings'])) {
          $item['#build']['settings'] += $settings;
          $item['#build']['settings']['delta'] = $delta;
        }
        unset($item['settings'], $item['attributes'], $item['item']);
      }
      if (!empty($item_settings['grid_item_class'])) {
        $attributes['class'][] = $item_settings['grid_item_class'];
      }

      // Good for Bootstrap .well/ .card class, must cast or BS will reset.
      $content_classes = empty($item_settings['grid_content_class']) ? [] : (array) $item_settings['grid_content_class'];

      // Supports single formatter field or complex fields such as Views.
      // Views or entity_view may flattened $item into a string.
      $content = is_string($item) ? [
        '#markup' => $item,
      ] : [
        'content' => $item,
      ];
      $content = $is_grid ? Blazy::container($content, [
        'class' => array_merge([
          'grid__content',
        ], $content_classes),
      ]) : $content;
      $classes = isset($attributes['class']) ? $attributes['class'] : [];
      $classes = array_merge([
        $class_item,
      ], $classes);
      $contents[$delta] = [
        'data' => drupal_render($content),
        'class' => $classes,
      ];
    }
    $settings['count'] = empty($settings['count']) ? count($contents) : $settings['count'];
    $element = [
      '#theme' => 'item_list',
      '#items' => $contents,
      '#context' => [
        'settings' => $settings,
      ],
      '#attributes' => [],
    ];
    self::attributes($element['#attributes'], $settings);
    return $element;
  }

  /**
   * Provides reusable container attributes.
   */
  public static function attributes(array &$attributes, array $settings = []) {
    $style = empty($settings['style']) ? '' : $settings['style'];
    $is_gallery = !empty($settings['lightbox']) && !empty($settings['gallery_id']);
    $is_grid = isset($settings['_grid']) ? $settings['_grid'] : !empty($settings['style']) && !empty($settings['grid']);

    // Provides data-attributes to avoid conflict with original implementations.
    Blazy::containerAttributes($attributes, $settings);

    // Provides gallery ID, although Colorbox works without it, others may not.
    // Uniqueness is not crucial as a gallery needs to work across entities.
    if (!empty($settings['id'])) {
      $attributes['id'] = $is_gallery ? $settings['gallery_id'] : $settings['id'];
    }

    // Limit to grid only, so to be usable for plain list.
    if ($is_grid) {
      $attributes['class'][] = 'blazy--grid block-' . $style . ' block-count-' . $settings['count'];

      // Adds common grid attributes for CSS3 column, Foundation, etc.
      if ($settings['grid_large'] = $settings['grid']) {
        foreach ([
          'small',
          'medium',
          'large',
        ] as $grid) {
          if (!empty($settings['grid_' . $grid])) {
            $attributes['class'][] = $grid . '-block-' . $style . '-' . $settings['grid_' . $grid];
          }
        }
      }
    }
  }

}

Classes

Name	Description
BlazyGrid	Provides grid utilities.