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<?php |
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/** |
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* This file is part of PHPPresentation - A pure PHP library for reading and writing |
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* presentations documents. |
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* |
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* PHPPresentation is free software distributed under the terms of the GNU Lesser |
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* General Public License version 3 as published by the Free Software Foundation. |
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* |
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* For the full copyright and license information, please read the LICENSE |
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* file that was distributed with this source code. For the full list of |
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* contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors. |
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* |
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* @link https://github.com/PHPOffice/PHPPresentation |
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* @copyright 2009-2015 PHPPresentation contributors |
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* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3 |
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*/ |
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namespace PhpOffice\PhpPresentation\Writer; |
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use PhpOffice\Common\XMLWriter; |
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use PhpOffice\PhpPresentation\PhpPresentation; |
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use PhpOffice\PhpPresentation\Shape\AbstractDrawing; |
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/** |
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* \PhpOffice\PhpPresentation\Writer\Serialized |
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*/ |
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class Serialized implements WriterInterface |
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{ |
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/** |
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* Private PhpPresentation |
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* |
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* @var \PhpOffice\PhpPresentation\PhpPresentation |
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*/ |
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private $presentation; |
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/** |
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* Create a new \PhpOffice\PhpPresentation\Writer\Serialized |
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* |
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* @param \PhpOffice\PhpPresentation\PhpPresentation $pPhpPresentation |
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*/ |
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public function __construct(PhpPresentation $pPhpPresentation = null) |
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{ |
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// Assign PhpPresentation |
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$this->setPhpPresentation($pPhpPresentation); |
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} |
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/** |
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* Save PhpPresentation to file |
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* |
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* @param string $pFilename |
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* @throws \Exception |
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*/ |
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public function save($pFilename) |
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{ |
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if (empty($pFilename)) { |
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throw new \Exception("Filename is empty."); |
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} |
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if (!is_null($this->presentation)) { |
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// Create new ZIP file and open it for writing |
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$objZip = new \ZipArchive(); |
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// Try opening the ZIP file |
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if ($objZip->open($pFilename, \ZipArchive::CREATE) !== true) { |
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if ($objZip->open($pFilename, \ZipArchive::OVERWRITE) !== true) { |
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throw new \Exception("Could not open " . $pFilename . " for writing."); |
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} |
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} |
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// Add media |
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$slideCount = $this->presentation->getSlideCount(); |
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for ($i = 0; $i < $slideCount; ++$i) { |
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for ($j = 0; $j < $this->presentation->getSlide($i)->getShapeCollection()->count(); ++$j) { |
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if ($this->presentation->getSlide($i)->getShapeCollection()->offsetGet($j) instanceof AbstractDrawing) { |
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$imgTemp = $this->presentation->getSlide($i)->getShapeCollection()->offsetGet($j); |
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$objZip->addFromString('media/' . $imgTemp->getFilename(), file_get_contents($imgTemp->getPath())); |
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} |
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} |
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} |
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// Add PhpPresentation.xml to the document, which represents a PHP serialized PhpPresentation object |
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$objZip->addFromString('PhpPresentation.xml', $this->writeSerialized($this->presentation, $pFilename)); |
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// Close file |
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if ($objZip->close() === false) { |
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throw new \Exception("Could not close zip file $pFilename."); |
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} |
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} else { |
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throw new \Exception("PhpPresentation object unassigned."); |
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} |
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} |
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/** |
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* Get PhpPresentation object |
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* |
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* @return PhpPresentation |
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* @throws \Exception |
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*/ |
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public function getPhpPresentation() |
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{ |
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if (!is_null($this->presentation)) { |
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return $this->presentation; |
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} else { |
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throw new \Exception("No PhpPresentation assigned."); |
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} |
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} |
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/** |
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* Get PhpPresentation object |
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* |
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* @param PhpPresentation $pPhpPresentation PhpPresentation object |
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* @throws \Exception |
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* @return \PhpOffice\PhpPresentation\Writer\Serialized |
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*/ |
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public function setPhpPresentation(PhpPresentation $pPhpPresentation = null) |
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{ |
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$this->presentation = $pPhpPresentation; |
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return $this; |
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} |
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/** |
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* Serialize PhpPresentation object to XML |
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* |
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* @param PhpPresentation $pPhpPresentation |
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* @param string $pFilename |
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* @return string XML Output |
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* @throws \Exception |
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*/ |
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private function writeSerialized(PhpPresentation $pPhpPresentation = null, $pFilename = '') |
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{ |
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// Clone $pPhpPresentation |
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$pPhpPresentation = clone $pPhpPresentation; |
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// Update media links |
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$slideCount = $pPhpPresentation->getSlideCount(); |
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for ($i = 0; $i < $slideCount; ++$i) { |
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for ($j = 0; $j < $pPhpPresentation->getSlide($i)->getShapeCollection()->count(); ++$j) { |
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if ($pPhpPresentation->getSlide($i)->getShapeCollection()->offsetGet($j) instanceof AbstractDrawing) { |
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$pPhpPresentation->getSlide($i)->getShapeCollection()->offsetGet($j)->setPath('zip://' . $pFilename . '#media/' . $pPhpPresentation->getSlide($i)->getShapeCollection()->offsetGet($j)->getFilename(), false); |
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} |
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} |
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} |
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// Create XML writer |
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$objWriter = new XMLWriter(); |
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$objWriter->openMemory(); |
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$objWriter->setIndent(true); |
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// XML header |
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$objWriter->startDocument('1.0', 'UTF-8', 'yes'); |
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// PhpPresentation |
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$objWriter->startElement('PhpPresentation'); |
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$objWriter->writeAttribute('version', '##VERSION##'); |
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// Comment |
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$objWriter->writeComment('This file has been generated using PhpPresentation v##VERSION## (http://github.com/PHPOffice/PhpPresentation). It contains a base64 encoded serialized version of the PhpPresentation internal object.'); |
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// Data |
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$objWriter->startElement('data'); |
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$objWriter->writeCData(base64_encode(serialize($pPhpPresentation))); |
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$objWriter->endElement(); |
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$objWriter->endElement(); |
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// Return |
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return $objWriter->getData(); |
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} |
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} |
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PHPOffice /
PHPPresentation
