/**
* Write relationships for additional objects of custom UI (ribbon)
*
* @param \PHPExcel\SpreadSheet $pPHPExcel
* @return string XML Output
* @throws \PHPExcel\Writer\Exception
*/
public function writeRibbonRelationships(\PHPExcel\SpreadSheet $pPHPExcel = null)
{
// Create XML writer
$objWriter = null;
if ($this->getParentWriter()->getUseDiskCaching()) {
$objWriter = new \PHPExcel\Shared\XMLWriter(\PHPExcel\Shared\XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
} else {
$objWriter = new \PHPExcel\Shared\XMLWriter(\PHPExcel\Shared\XMLWriter::STORAGE_MEMORY);
}
// XML header
$objWriter->startDocument('1.0', 'UTF-8', 'yes');
// Relationships
$objWriter->startElement('Relationships');
$objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
$localRels = $pPHPExcel->getRibbonBinObjects('names');
if (is_array($localRels)) {
foreach ($localRels as $aId => $aTarget) {
$objWriter->startElement('Relationship');
$objWriter->writeAttribute('Id', $aId);
$objWriter->writeAttribute('Type', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/image');
$objWriter->writeAttribute('Target', $aTarget);
$objWriter->endElement();
}
}
$objWriter->endElement();
return $objWriter->getData();
}
