public function render()
{
require_celerity_resource('differential-revision-comment-list-css');
$engine = PhabricatorMarkupEngine::newDifferentialMarkupEngine(array('differential.diff' => $this->target));
$inlines = mgroup($this->inlines, 'getCommentID');
$num = 1;
$html = array();
foreach ($this->comments as $comment) {
$view = new DifferentialRevisionCommentView();
$view->setComment($comment);
$view->setUser($this->user);
$view->setHandles($this->handles);
$view->setMarkupEngine($engine);
$view->setInlineComments(idx($inlines, $comment->getID(), array()));
$view->setChangesets($this->changesets);
$view->setTargetDiff($this->target);
$view->setVersusDiffID($this->versusDiffID);
$view->setCommentNumber($num++);
$html[] = $view->render();
}
$objs = array_reverse(array_values($this->comments));
$html = array_reverse(array_values($html));
$user = $this->user;
$last_comment = null;
// Find the most recent comment by the viewer.
foreach ($objs as $position => $comment) {
if ($user && $comment->getAuthorPHID() == $user->getPHID()) {
if ($last_comment === null) {
$last_comment = $position;
} else {
if ($last_comment == $position - 1) {
// If the viewer made several comments in a row, show them all. This
// is a spaz rule for epriestley.
$last_comment = $position;
}
}
}
}
$header = array();
$hidden = array();
if ($last_comment !== null) {
foreach ($objs as $position => $comment) {
if (!$comment->getID()) {
// These are synthetic comments with summary/test plan information.
$header[] = $html[$position];
unset($html[$position]);
continue;
}
if ($position <= $last_comment) {
// Always show comments after the viewer's last comment.
continue;
}
if ($position < 3) {
// Always show the 3 most recent comments.
continue;
}
$hidden[] = $position;
}
}
if (count($hidden) <= 3) {
// Don't hide if there's not much to hide.
$hidden = array();
}
$header = array_reverse($header);
$hidden = array_select_keys($html, $hidden);
$visible = array_diff_key($html, $hidden);
$hidden = array_reverse($hidden);
$visible = array_reverse($visible);
if ($hidden) {
Javelin::initBehavior('differential-show-all-comments', array('markup' => implode("\n", $hidden)));
$hidden = javelin_render_tag('div', array('sigil' => "differential-all-comments-container"), '<div class="differential-older-comments-are-hidden">' . number_format(count($hidden)) . ' older comments are hidden. ' . javelin_render_tag('a', array('href' => '#', 'mustcapture' => true, 'sigil' => 'differential-show-all-comments'), 'Show all comments.') . '</div>');
} else {
$hidden = null;
}
return '<div class="differential-comment-list">' . implode("\n", $header) . $hidden . implode("\n", $visible) . '</div>';
}