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<?php |
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/* |
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* This file is part of the trefoil application. |
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* |
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* (c) Miguel Angel Gabriel <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Trefoil\Publishers; |
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use ZendPdf\PdfDocument; |
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/** |
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* It publishes the book as a PDF file. All the internal links are transformed |
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* into clickable cross-section book links. These links even display automatically |
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* the page number where they point into, so no information is lost when printing |
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* the book. |
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*/ |
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abstract class PdfPublisher extends BasePublisher |
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{ |
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public function loadContents() |
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{ |
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parent::loadContents(); |
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// if the book includes its own cover as a PDF file, |
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// remove the default 'cover' element to prevent |
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// publishing a book with two covers |
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if (null !== $this->getCustomCover()) { |
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$bookItems = array(); |
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// remove any element of type 'cover' from the |
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// publishing items |
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foreach ($this->app['publishing.items'] as $item) { |
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if ('cover' != $item['config']['element']) { |
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$bookItems[] = $item; |
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} |
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} |
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$this->app['publishing.items'] = $bookItems; |
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} |
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} |
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/** |
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* If the book defines a custom PDF cover, this method prepends it |
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* to the PDF book. |
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* |
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* @param string $bookFilePath The path of the original PDF book without the cover |
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* @param string $coverFilePath The path of the PDF file which will be displayed as the cover of the book |
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* |
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* @protected (set to public to be able to unit test it) |
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*/ |
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View Code Duplication |
public function addBookCover($bookFilePath, $coverFilePath) |
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{ |
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if (!empty($coverFilePath)) { |
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$pdfBook = PdfDocument::load($bookFilePath); |
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$pdfCover = PdfDocument::load($coverFilePath); |
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$pdfCover = clone $pdfCover->pages[0]; |
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array_unshift($pdfBook->pages, $pdfCover); |
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$pdfBook->save($bookFilePath, true); |
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} |
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} |
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/** |
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* It looks for custom book cover PDF. The search order is: |
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* 1. <book>/Resources/Templates/<edition-name>/cover.pdf |
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* 2. <book>/Resources/Templates/pdf/cover.pdf |
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* 3. <book>/Resources/Templates/cover.pdf |
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* |
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* @param string $coverFileName The name of the PDF file that defines the book cover |
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* |
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* @return null|string The filePath of the PDF cover or null if none exists |
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* |
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* @protected (set to public to be able to unit test it) |
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*/ |
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View Code Duplication |
public function getCustomCover($coverFileName = 'cover.pdf') |
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{ |
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$paths = array( |
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$this->app['publishing.dir.templates'] . '/' . $this->app['publishing.edition'], |
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$this->app['publishing.dir.templates'] . '/pdf', |
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$this->app['publishing.dir.templates'], |
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); |
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return $this->app->getFirstExistingFile($coverFileName, $paths); |
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} |
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} |
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magabriel /
trefoil
