src/applications/files/xaction/PhabricatorFileAltTextTransaction.php

   1 <?php
   2
   3 final class PhabricatorFileAltTextTransaction
   4   extends PhabricatorFileTransactionType {
   5
   6   const TRANSACTIONTYPE = 'file:alt';
   7
   8   public function generateOldValue($object) {
   9     return $object->getCustomAltText();
  10   }
  11
  12   public function generateNewValue($object, $value) {
  13     $value = phutil_string_cast($value);
  14
  15     if (!strlen($value)) {
  16       $value = null;
  17     }
  18
  19     return $value;
  20   }
  21
  22   public function applyInternalEffects($object, $value) {
  23     $object->setCustomAltText($value);
  24   }
  25
  26   public function getTitle() {
  27     $old_value = $this->getOldValue();
  28     $new_value = $this->getNewValue();
  29
  30     if (!strlen($old_value)) {
  31       return pht(
  32         '%s set the alternate text for this file to %s.',
  33         $this->renderAuthor(),
  34         $this->renderNewValue());
  35     } else if (!strlen($new_value)) {
  36       return pht(
  37         '%s removed the alternate text for this file (was %s).',
  38         $this->renderAuthor(),
  39         $this->renderOldValue());
  40     } else {
  41       return pht(
  42         '%s changed the alternate text for this file from %s to %s.',
  43         $this->renderAuthor(),
  44         $this->renderOldValue(),
  45         $this->renderNewValue());
  46     }
  47   }
  48
  49   public function getTitleForFeed() {
  50     $old_value = $this->getOldValue();
  51     $new_value = $this->getNewValue();
  52
  53     if (!strlen($old_value)) {
  54       return pht(
  55         '%s set the alternate text for %s to %s.',
  56         $this->renderAuthor(),
  57         $this->renderObject(),
  58         $this->renderNewValue());
  59     } else if (!strlen($new_value)) {
  60       return pht(
  61         '%s removed the alternate text for %s (was %s).',
  62         $this->renderAuthor(),
  63         $this->renderObject(),
  64         $this->renderOldValue());
  65     } else {
  66       return pht(
  67         '%s changed the alternate text for %s from %s to %s.',
  68         $this->renderAuthor(),
  69         $this->renderObject(),
  70         $this->renderOldValue(),
  71         $this->renderNewValue());
  72     }
  73   }
  74
  75   public function validateTransactions($object, array $xactions) {
  76     $errors = array();
  77
  78     $max_length = 1024;
  79     foreach ($xactions as $xaction) {
  80       $new_value = $xaction->getNewValue();
  81
  82       $new_length = strlen($new_value);
  83       if ($new_length > $max_length) {
  84         $errors[] = $this->newInvalidError(
  85           pht(
  86             'File alternate text must not be longer than %s character(s).',
  87             new PhutilNumber($max_length)));
  88       }
  89     }
  90
  91     return $errors;
  92   }
  93
  94 }