/**
* @param SupervisorInterface $supervisor
* @param string $name
* @param string|array $source String content or array of html tokens.
* @param HtmlTokenizer $tokenizer Html tokens source.
*/
public function __construct(SupervisorInterface $supervisor, $name, $source = [], HtmlTokenizer $tokenizer = null)
{
$this->supervisor = $supervisor;
$this->name = $name;
if (empty($tokenizer)) {
$tokenizer = new HtmlTokenizer();
}
if (is_string($source)) {
$source = $tokenizer->parse($source);
}
$this->parseTokens($source);
}
/**
* Normalize attribute values.
*
* @param string $source
* @param HtmlTokenizer $tokenizer
* @return mixed
*/
protected function normalizeAttributes($source, HtmlTokenizer $tokenizer)
{
$result = '';
foreach ($tokenizer->parse($source) as $token) {
if (empty($token[HtmlTokenizer::TOKEN_ATTRIBUTES])) {
$result .= $tokenizer->compile($token);
continue;
}
$attributes = [];
foreach ($token[HtmlTokenizer::TOKEN_ATTRIBUTES] as $attribute => $value) {
if (in_array($attribute, $this->options['attributes']['trim'])) {
$value = trim($value);
}
if (empty($value) && in_array($attribute, $this->options['attributes']['drop'])) {
//Empty value
continue;
}
$attributes[$attribute] = $value;
}
$token[HtmlTokenizer::TOKEN_ATTRIBUTES] = $attributes;
$result .= $tokenizer->compile($token);
}
return $result;
}