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   1  <?php
   2  
   3  final class SubscriptionListStringBuilder {
   4  
   5    private $handles;
   6    private $objectPHID;
   7  
   8    public function setHandles(array $handles) {
   9      assert_instances_of($handles, 'PhabricatorObjectHandle');
  10      $this->handles = $handles;
  11      return $this;
  12    }
  13  
  14    public function getHandles() {
  15      return $this->handles;
  16    }
  17  
  18    public function setObjectPHID($object_phid) {
  19      $this->objectPHID = $object_phid;
  20      return $this;
  21    }
  22  
  23    public function getObjectPHID() {
  24      return $this->objectPHID;
  25    }
  26  
  27    public function buildTransactionString($change_type) {
  28      $handles = $this->getHandles();
  29      if (!$handles) {
  30        return;
  31      }
  32      $list_uri = '/subscriptions/transaction/'.
  33                  $change_type.'/'.
  34                  $this->getObjectPHID().'/';
  35      return $this->buildString($list_uri);
  36    }
  37  
  38    public function buildPropertyString() {
  39      $handles = $this->getHandles();
  40  
  41      if (!$handles) {
  42        return phutil_tag('em', array(), pht('None'));
  43      }
  44      $list_uri = '/subscriptions/list/'.$this->getObjectPHID().'/';
  45      return $this->buildString($list_uri);
  46    }
  47  
  48    private function buildString($list_uri) {
  49      $handles = $this->getHandles();
  50  
  51      // Always show this many subscribers.
  52      $show_count = 3;
  53      $subscribers_count = count($handles);
  54  
  55      // It looks a bit silly to render "a, b, c, and 1 other", since we could
  56      // have just put that other subscriber there in place of the "1 other"
  57      // link. Instead, render "a, b, c, d" in this case, and then when we get one
  58      // more render "a, b, c, and 2 others".
  59      if ($subscribers_count <= ($show_count + 1)) {
  60        return phutil_implode_html(', ', mpull($handles, 'renderLink'));
  61      }
  62  
  63      $show = array_slice($handles, 0, $show_count);
  64      $show = array_values($show);
  65  
  66      $not_shown_count = $subscribers_count - $show_count;
  67      $not_shown_txt = pht('%d other(s)', $not_shown_count);
  68      $not_shown_link = javelin_tag(
  69        'a',
  70        array(
  71          'href' => $list_uri,
  72          'sigil' => 'workflow',
  73        ),
  74        $not_shown_txt);
  75  
  76      return pht(
  77        '%s, %s, %s and %s',
  78        $show[0]->renderLink(),
  79        $show[1]->renderLink(),
  80        $show[2]->renderLink(),
  81        $not_shown_link);
  82    }
  83  
  84  }