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PhabricatorSearchResultView.php
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Mon, Apr 28, 01:21

PhabricatorSearchResultView.php
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<?php
final class PhabricatorSearchResultView extends AphrontView {
private $handle;
private $query;
private $object;
public function setHandle(PhabricatorObjectHandle $handle) {
$this->handle = $handle;
return $this;
}
public function setQuery(PhabricatorSavedQuery $query) {
$this->query = $query;
return $this;
}
public function setObject($object) {
$this->object = $object;
return $this;
}
public function render() {
$handle = $this->handle;
if (!$handle->isComplete()) {
return;
}
require_celerity_resource('phabricator-search-results-css');
$type_name = nonempty($handle->getTypeName(), pht('Document'));
$raw_title = $handle->getFullName();
$title = $this->emboldenQuery($raw_title);
$item = id(new PHUIObjectItemView())
->setHeader($title)
->setTitleText($raw_title)
->setHref($handle->getURI())
->setImageURI($handle->getImageURI())
->addAttribute($type_name);
if ($handle->getStatus() == PhabricatorObjectHandle::STATUS_CLOSED) {
$item->setDisabled(true);
$item->addAttribute(pht('Closed'));
}
return $item;
}
/**
* Find the words which are part of the query string, and bold them in a
* result string. This makes it easier for users to see why a result
* matched their query.
*/
private function emboldenQuery($str) {
$query = $this->query->getParameter('query');
if (!strlen($query) || !strlen($str)) {
return $str;
}
// This algorithm is safe but not especially fast, so don't bother if
// we're dealing with a lot of data. This mostly prevents silly/malicious
// queries from doing anything bad.
if (strlen($query) + strlen($str) > 2048) {
return $str;
}
// Keep track of which characters we're going to make bold. This is
// byte oriented, but we'll make sure we don't put a bold in the middle
// of a character later.
$bold = array_fill(0, strlen($str), false);
// Split the query into words.
$parts = preg_split('/ +/', $query);
// Find all occurrences of each word, and mark them to be emboldened.
foreach ($parts as $part) {
$part = trim($part);
$part = trim($part, '"+');
if (!strlen($part)) {
continue;
}
$matches = null;
$has_matches = preg_match_all(
'/(?:^|\b)('.preg_quote($part, '/').')/i',
$str,
$matches,
PREG_OFFSET_CAPTURE);
if (!$has_matches) {
continue;
}
// Flag the matching part of the range for boldening.
foreach ($matches[1] as $match) {
$offset = $match[1];
for ($ii = 0; $ii < strlen($match[0]); $ii++) {
$bold[$offset + $ii] = true;
}
}
}
// Split the string into ranges, applying bold styling as required.
$out = array();
$buf = '';
$pos = 0;
$is_bold = false;
// Make sure this is UTF8 because phutil_utf8v() will explode if it isn't.
$str = phutil_utf8ize($str);
foreach (phutil_utf8v($str) as $chr) {
if ($bold[$pos] != $is_bold) {
if (strlen($buf)) {
if ($is_bold) {
$out[] = phutil_tag('strong', array(), $buf);
} else {
$out[] = $buf;
}
$buf = '';
}
$is_bold = !$is_bold;
}
$buf .= $chr;
$pos += strlen($chr);
}
if (strlen($buf)) {
if ($is_bold) {
$out[] = phutil_tag('strong', array(), $buf);
} else {
$out[] = $buf;
}
}
return $out;
}
}

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