phpQueryObject::attrEvents PHP Method

    protected function attrEvents($attr, $oldAttr, $oldValue, $node)
    {
        // skip events for XML documents
        if (!$this->isXHTML() && !$this->isHTML()) {
            return;
        }
        $event = null;
        // identify
        $isInputValue = $node->tagName == 'input' && (in_array($node->getAttribute('type'), array('text', 'password', 'hidden')) || !$node->getAttribute('type'));
        $isRadio = $node->tagName == 'input' && $node->getAttribute('type') == 'radio';
        $isCheckbox = $node->tagName == 'input' && $node->getAttribute('type') == 'checkbox';
        $isOption = $node->tagName == 'option';
        if ($isInputValue && $attr == 'value' && $oldValue != $node->getAttribute($attr)) {
            $event = new DOMEvent(array('target' => $node, 'type' => 'change'));
        } elseif (($isRadio || $isCheckbox) && $attr == 'checked' && (!$oldAttr && $node->hasAttribute($attr) || !$node->hasAttribute($attr) && $oldAttr)) {
            $event = new DOMEvent(array('target' => $node, 'type' => 'change'));
        } elseif ($isOption && $node->parentNode && $attr == 'selected' && (!$oldAttr && $node->hasAttribute($attr) || !$node->hasAttribute($attr) && $oldAttr)) {
            $event = new DOMEvent(array('target' => $node->parentNode, 'type' => 'change'));
        }
        if ($event) {
            phpQueryEvents::trigger($this->getDocumentID(), $event->type, array($event), $node);
        }
    }