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

   1 <?php
   2 /**
   3  * @file
   4  * Contains \Drupal\bootstrap\Plugin\Preprocess\FileUploadHelp.
   5  */
   6
   7 namespace Drupal\bootstrap\Plugin\Preprocess;
   8
   9 use Drupal\bootstrap\Annotation\BootstrapPreprocess;
  10 use Drupal\bootstrap\Bootstrap;
  11 use Drupal\bootstrap\Utility\Element;
  12 use Drupal\bootstrap\Utility\Variables;
  13 use Drupal\Component\Render\FormattableMarkup;
  14 use Drupal\Component\Utility\Html;
  15 use Drupal\Core\Field\FieldFilteredMarkup;
  16 use Drupal\Core\Url;
  17
  18 /**
  19  * Pre-processes variables for the "file_upload_help" theme hook.
  20  *
  21  * @ingroup plugins_preprocess
  22  *
  23  * @BootstrapPreprocess("file_upload_help",
  24  *   replace = "template_preprocess_file_upload_help"
  25  * )
  26  */
  27 class FileUploadHelp extends PreprocessBase implements PreprocessInterface {
  28
  29   /**
  30    * {@inheritdoc}
  31    */
  32   public function preprocessVariables(Variables $variables) {
  33     if (!empty($variables['description'])) {
  34       $variables['description'] = FieldFilteredMarkup::create($variables['description']);
  35     }
  36
  37     $descriptions = [];
  38
  39     $cardinality = $variables['cardinality'];
  40     if (isset($cardinality)) {
  41       if ($cardinality == -1) {
  42         $descriptions[] = t('Unlimited number of files can be uploaded to this field.');
  43       }
  44       else {
  45         $descriptions[] = \Drupal::translation()->formatPlural($cardinality, 'One file only.', 'Maximum @count files.');
  46       }
  47     }
  48
  49     $upload_validators = $variables['upload_validators'];
  50     if (isset($upload_validators['file_validate_size'])) {
  51       $descriptions[] = t('@size limit.', ['@size' => format_size($upload_validators['file_validate_size'][0])]);
  52     }
  53     if (isset($upload_validators['file_validate_extensions'])) {
  54       $extensions = new FormattableMarkup('<code>@extensions</code>', [
  55         '@extensions' => implode(', ', explode(' ', $upload_validators['file_validate_extensions'][0])),
  56       ]);
  57       $descriptions[] = t('Allowed types: @extensions.', ['@extensions' => $extensions]);
  58     }
  59
  60     if (isset($upload_validators['file_validate_image_resolution'])) {
  61       $max = $upload_validators['file_validate_image_resolution'][0];
  62       $min = $upload_validators['file_validate_image_resolution'][1];
  63       if ($min && $max && $min == $max) {
  64         $descriptions[] = t('Images must be exactly <strong>@size</strong> pixels.', ['@size' => $max]);
  65       }
  66       elseif ($min && $max) {
  67         $descriptions[] = t('Images must be larger than <strong>@min</strong> pixels. Images larger than <strong>@max</strong> pixels will be resized.', ['@min' => $min, '@max' => $max]);
  68       }
  69       elseif ($min) {
  70         $descriptions[] = t('Images must be larger than <strong>@min</strong> pixels.', ['@min' => $min]);
  71       }
  72       elseif ($max) {
  73         $descriptions[] = t('Images larger than <strong>@max</strong> pixels will be resized.', ['@max' => $max]);
  74       }
  75     }
  76
  77     $variables['descriptions'] = $descriptions;
  78
  79     if ($descriptions && $this->theme->getSetting('popover_enabled')) {
  80       $build = array();
  81       $id = Html::getUniqueId('upload-instructions');
  82       $build['toggle'] = [
  83         '#type' => 'link',
  84         '#title' => t('Upload requirements'),
  85         '#url' => Url::fromUserInput("#$id"),
  86         '#icon' => Bootstrap::glyphicon('question-sign'),
  87         '#attributes' => [
  88           'class' => ['icon-before'],
  89           'data-toggle' => 'popover',
  90           'data-html' => 'true',
  91           'data-placement' => 'bottom',
  92           'data-title' => t('Upload requirements'),
  93         ],
  94       ];
  95       $build['requirements'] = [
  96         '#type' => 'container',
  97         '#theme_wrappers' => ['container__file_upload_help'],
  98         '#attributes' => [
  99           'id' => $id,
 100           'class' => ['hidden', 'help-block'],
 101           'aria-hidden' => 'true',
 102         ],
 103       ];
 104       $build['requirements']['descriptions'] = [
 105         '#theme' => 'item_list__file_upload_help',
 106         '#items' => $descriptions,
 107       ];
 108       $variables['popover'] = $build;
 109     }
 110   }
 111
 112 }