/**
* Generate the Microdata or RDFa semantics
*
* @param array $params The params used to setup the StructuredData library
*
* @return string
*/
protected function display($params)
{
$html = '';
$setType = $params['setType'];
// Specialized fallbacks
$sFallbacks = $params['fallbacks']['specialized'];
// Global fallbacks
$gFallbacks = $params['fallbacks']['global'];
// Set the current Type if available
if ($setType) {
$this->handler->setType($setType);
}
// If no properties available and there is a 'setType', return and display the scope
if ($setType && !$sFallbacks && !$gFallbacks) {
return $this->handler->displayScope();
}
// Get the current Type
$currentType = $this->handler->getType();
// Check if there is an available 'specialized' fallback property for the current Type
if ($sFallbacks && array_key_exists($currentType, $sFallbacks)) {
$property = key($sFallbacks[$currentType]);
$expectedType = $sFallbacks[$currentType][$property];
$html .= $this->handler->property($property)->display('inline');
// Check if an expected Type is available and it is valid
if ($expectedType && in_array($expectedType, StructuredData::getExpectedTypes($currentType, $property))) {
// Update the current Type
$this->handler->setType($expectedType);
// Display the scope
$html .= ' ' . $this->handler->displayScope();
}
return $html;
}
// Check if there is an available 'global' fallback property for the current Type
if ($gFallbacks) {
foreach ($gFallbacks as $property => $expectedType) {
// Check if the property is available in the current Type
if (StructuredData::isPropertyInType($currentType, $property)) {
$html .= $this->handler->property($property)->display('inline');
// Check if an expected Type is available
if ($expectedType && in_array($expectedType, StructuredData::getExpectedTypes($currentType, $property))) {
// Update the current Type
$this->handler->setType($expectedType);
// Display the scope
$html .= ' ' . $this->handler->displayScope();
}
return $html;
}
}
}
return $html;
}