/**
* {@inheritdoc}
*/
public function isEmpty()
{
if ($this->element->getValue()) {
return false;
}
return true;
}
/**
* Detect valid formatting elements within a paragraph
*
* @param \Candybanana\HtmlToCarbonJson\Element
* @return string
*/
protected function detectFormatting(Element $element)
{
if ($element->hasChildren()) {
$formats = [];
foreach ($element->getChildren() as $node) {
if (!$node->isText() && in_array($node->getTagName(), $this->config['allowedFormattingTags'])) {
$type = $this->config['formattingTags'][$node->getTagName()];
if (empty($node->getValue())) {
continue;
}
list($from, $to) = $this->getTextPosition($element->getValue(), $node->getValue());
$format = ['type' => $type, 'from' => $from, 'to' => $to];
// if <a> tag, add attributes
if ($type == 'a') {
$format['attrs'] = ['href' => $node->getAttribute('href')];
}
$formats[] = $format;
}
}
return !empty($formats) ? $formats : null;
}
}
/**
* Builds an object that will represent our JSON based on the sections we've extracted
*
* @param \Candybanana\HtmlToCarbonJson\Element
* @return string
*/
protected function convertSection(Element $section)
{
$layouts = [];
$layout = $prevComponentClass = null;
foreach ($section->getChildren() as $sectionChild) {
if (!($component = $this->matchWithComponent($sectionChild))) {
// is there's a value in this element, throw error, otherwise ignore it
if (!trim($sectionChild->getValue())) {
continue;
}
// build the tag for easy debugging
$tag = '<' . $sectionChild->getTagName();
foreach ($sectionChild->getAttributes() as $attribute) {
$tag .= ' ' . $attribute->name . '="';
$tag .= $sectionChild->getAttribute($attribute->name) . '"';
}
$tag .= '>';
dbg($section->getValue());
dbg($tag);
dbg($sectionChild->getValue());
throw new Exceptions\InvalidStructureException("No component loaded to render '{$tag}' tags.");
}
// if empty, skip this child
if ($component->isEmpty()) {
continue;
}
$componentClass = get_class($component);
// create a new layout if we're not in one, or the component requires a new one
if ($component->requiresNewLayout() || $componentClass !== $prevComponentClass) {
// save previous layout
if ($layout) {
$layouts[] = $layout->render();
}
// create new
$layout = new Layout($component->getLayout());
}
$layout->addComponent($component->render($this));
$prevComponentClass = $componentClass;
}
// render the last layout
if ($layout) {
$layouts[] = $layout->render();
}
// create final section json
if (!empty($layouts)) {
$section = ['name' => self::carbonId(), 'component' => 'Section', 'components' => $layouts];
return $section;
}
// Strip nodes named in remove_nodes
// $tags_to_remove = explode(' ', $this->getConfig()->getOption('remove_nodes'));
// if (in_array($tag, $tags_to_remove)) {
// return false;
// }
}