public function apply($transformer, $instant_article, $node)
{
// Builds the slideshow
$slideshow = Slideshow::create();
$instant_article->addChild($slideshow);
$gallery = $this->getProperty(self::PROPERTY_JETPACK_DATA_GALLERY, $node);
if ($gallery && isset($gallery)) {
foreach ($gallery as $gallery_image) {
// Constructs Image if it contains URL
if (!Type::isTextEmpty($gallery_image['src'])) {
$image = Image::create();
$image->withURL($gallery_image['src']);
// Constructs Caption element when present in the JSON
if (!Type::isTextEmpty($gallery_image['caption'])) {
$caption = Caption::create();
$caption->appendText($gallery_image['caption']);
$image->withCaption($caption);
}
$slideshow->addImage($image);
}
}
}
$transformer->transform($slideshow, $node);
return $instant_article;
}
public function apply($transformer, $header, $node)
{
$page_url = $this->getProperty(self::PROPERTY_SPONSOR_PAGE_URL, $node);
if ($page_url && !Type::isTextEmpty($page_url)) {
$sponsor = Sponsor::create();
$header->withSponsor($sponsor);
$sponsor->withPageUrl($page_url);
}
return $header;
}
public function get($node)
{
$content = null;
Type::enforce($node, 'DOMNode');
$elements = self::findAll($node, $this->selector);
if (!empty($elements) && $elements->item(0)) {
$element = $elements->item(0);
if ($this->attribute) {
$content = $element->getAttribute($this->attribute);
} else {
$content = $element->textContent;
}
}
if (!Type::isTextEmpty($content)) {
return json_decode($content, true);
}
return null;
}
/**
* Overrides the Element::isValid().
*
* @see Element::isValid().
* @return true for valid GeoTag that contains not empty script, false otherwise.
*/
public function isValid()
{
return !Type::isTextEmpty($this->script);
}
public function get($node)
{
Type::enforce($node, 'DOMNode');
$elements = self::findAll($node, $this->selector);
if (!empty($elements) && $elements->item(0)) {
$element = $elements->item(0);
if ($this->attribute) {
$result = $element->getAttribute($this->attribute);
} else {
$result = $element->textContent;
}
if (!Type::isTextEmpty($this->prefix)) {
$result = $this->prefix . $result;
}
if (!Type::isTextEmpty($this->suffix)) {
$result = $result . $this->suffix;
}
return $result;
}
return null;
}
/**
* Overrides the Element::isValid().
*
* @see Element::isValid().
* @return true for valid Author that contains not empty name, false otherwise.
*/
public function isValid()
{
return !Type::isTextEmpty($this->name);
}
public function testStringEmpty()
{
$this->assertTrue(Type::isTextEmpty(""));
$this->assertTrue(Type::isTextEmpty(" "));
$this->assertTrue(Type::isTextEmpty("\t\t"));
$this->assertTrue(Type::isTextEmpty(" "));
$this->assertTrue(Type::isTextEmpty("\n"));
}
public function isValid()
{
$header_valid = false;
if ($this->getHeader()) {
$header_valid = $this->getHeader()->isValid();
}
$items = $this->getChildren();
$one_item_valid = false;
if ($items) {
foreach ($items as $item) {
if ($item->isValid()) {
$one_item_valid = true;
break;
}
}
}
$footer_valid = true;
if ($this->getFooter()) {
$footer_valid = $this->getFooter()->isValid();
}
return $this->canonicalURL && !Type::isTextEmpty($this->canonicalURL) && $header_valid && $footer_valid && $one_item_valid;
}
/**
* Overrides the Element::isValid().
*
* @see Element::isValid().
* @return true for valid ListElement that contains at least one ListItem's valid, false otherwise.
*/
public function isValid()
{
return !Type::isTextEmpty($this->page_url);
}
/**
* Overrides the Element::isValid().
* @see Element::isValid().
* @return true for valid Ad that contains valid src or html, false otherwise.
*/
public function isValid()
{
return !Type::isTextEmpty($this->source) || $this->html;
}
/**
* Overrides the Element::isValid().
*
* @see Element::isValid().
* @return true for valid tag, false otherwise.
*/
public function isValid()
{
$textContent = '';
foreach ($this->textChildren as $content) {
// Recursive check on TextContainer, if something inside is valid, this is valid.
if (Type::is($content, TextContainer::getClassName()) && $content->isValid()) {
return true;
// If is string content, concat to check if it is not only a bunch of empty chars.
} elseif (Type::is($content, Type::STRING)) {
$textContent = $textContent . $content;
}
}
return !Type::isTextEmpty($textContent);
}
/**
* Overrides the Element::isValid().
*
* @see Element::isValid().
* @return true for valid Interactive that contains valid source or html, false otherwise.
*/
public function isValid()
{
return $this->html || !Type::isTextEmpty($this->source) && $this->height && $this->width;
}
