www.aleph1.co.uk Git - yaffs-website/blob - web/themes/contrib/bootstrap/src/Plugin/Preprocess/FileUploadHelp.php

   1 <?php
   2
   3 namespace Drupal\bootstrap\Plugin\Preprocess;
   4
   5 use Drupal\bootstrap\Bootstrap;
   6 use Drupal\bootstrap\Utility\Variables;
   7 use Drupal\Component\Render\FormattableMarkup;
   8 use Drupal\Component\Utility\Html;
   9 use Drupal\Core\Field\FieldFilteredMarkup;
  10 use Drupal\Core\Url;
  11
  12 /**
  13  * Pre-processes variables for the "file_upload_help" theme hook.
  14  *
  15  * @ingroup plugins_preprocess
  16  *
  17  * @BootstrapPreprocess("file_upload_help",
  18  *   replace = "template_preprocess_file_upload_help"
  19  * )
  20  */
  21 class FileUploadHelp extends PreprocessBase implements PreprocessInterface {
  22
  23   /**
  24    * {@inheritdoc}
  25    */
  26   public function preprocessVariables(Variables $variables) {
  27     if (!empty($variables['description'])) {
  28       $variables['description'] = FieldFilteredMarkup::create($variables['description']);
  29     }
  30
  31     $descriptions = [];
  32
  33     $cardinality = $variables['cardinality'];
  34     if (isset($cardinality)) {
  35       if ($cardinality == -1) {
  36         $descriptions[] = t('Unlimited number of files can be uploaded to this field.');
  37       }
  38       else {
  39         $descriptions[] = \Drupal::translation()->formatPlural($cardinality, 'One file only.', 'Maximum @count files.');
  40       }
  41     }
  42
  43     $upload_validators = $variables['upload_validators'];
  44     if (isset($upload_validators['file_validate_size'])) {
  45       $descriptions[] = t('@size limit.', ['@size' => format_size($upload_validators['file_validate_size'][0])]);
  46     }
  47     if (isset($upload_validators['file_validate_extensions'])) {
  48       $extensions = new FormattableMarkup('<code>@extensions</code>', [
  49         '@extensions' => implode(', ', explode(' ', $upload_validators['file_validate_extensions'][0])),
  50       ]);
  51       $descriptions[] = t('Allowed types: @extensions.', ['@extensions' => $extensions]);
  52     }
  53
  54     if (isset($upload_validators['file_validate_image_resolution'])) {
  55       $max = $upload_validators['file_validate_image_resolution'][0];
  56       $min = $upload_validators['file_validate_image_resolution'][1];
  57       if ($min && $max && $min == $max) {
  58         $descriptions[] = t('Images must be exactly <strong>@size</strong> pixels.', ['@size' => $max]);
  59       }
  60       elseif ($min && $max) {
  61         $descriptions[] = t('Images must be larger than <strong>@min</strong> pixels. Images larger than <strong>@max</strong> pixels will be resized.', ['@min' => $min, '@max' => $max]);
  62       }
  63       elseif ($min) {
  64         $descriptions[] = t('Images must be larger than <strong>@min</strong> pixels.', ['@min' => $min]);
  65       }
  66       elseif ($max) {
  67         $descriptions[] = t('Images larger than <strong>@max</strong> pixels will be resized.', ['@max' => $max]);
  68       }
  69     }
  70
  71     $variables['descriptions'] = $descriptions;
  72
  73     if ($descriptions && $this->theme->getSetting('popover_enabled')) {
  74       $build = [];
  75       $id = Html::getUniqueId('upload-instructions');
  76       $build['toggle'] = [
  77         '#type' => 'link',
  78         '#title' => t('Upload requirements'),
  79         '#url' => Url::fromUserInput("#$id"),
  80         '#icon' => Bootstrap::glyphicon('question-sign'),
  81         '#attributes' => [
  82           'class' => ['icon-before'],
  83           'data-toggle' => 'popover',
  84           'data-html' => 'true',
  85           'data-placement' => 'bottom',
  86           'data-title' => t('Upload requirements'),
  87         ],
  88       ];
  89       $build['requirements'] = [
  90         '#type' => 'container',
  91         '#theme_wrappers' => ['container__file_upload_help'],
  92         '#attributes' => [
  93           'id' => $id,
  94           'class' => ['hidden', 'help-block'],
  95           'aria-hidden' => 'true',
  96         ],
  97       ];
  98       $build['requirements']['descriptions'] = [
  99         '#theme' => 'item_list__file_upload_help',
 100         '#items' => $descriptions,
 101       ];
 102       $variables['popover'] = $build;
 103     }
 104   }
 105
 106 }