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authorPierre Schmitz <pierre@archlinux.de>2015-04-01 06:11:44 +0200
committerPierre Schmitz <pierre@archlinux.de>2015-04-01 06:11:44 +0200
commit14f74d141ab5580688bfd46d2f74c026e43ed967 (patch)
tree081b7cbfc4d246ecc42831978d080331267cf57c /extensions/PdfHandler/CreatePdfThumbnailsJob.class.php
parent4a953b6bfda28604979feb9cfbb58974d13b84bb (diff)
Update to MediaWiki 1.24.2
Diffstat (limited to 'extensions/PdfHandler/CreatePdfThumbnailsJob.class.php')
-rw-r--r--extensions/PdfHandler/CreatePdfThumbnailsJob.class.php126
1 files changed, 126 insertions, 0 deletions
diff --git a/extensions/PdfHandler/CreatePdfThumbnailsJob.class.php b/extensions/PdfHandler/CreatePdfThumbnailsJob.class.php
new file mode 100644
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+++ b/extensions/PdfHandler/CreatePdfThumbnailsJob.class.php
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+<?php
+
+class CreatePdfThumbnailsJob extends Job {
+ /**
+ * Flags for thumbnail jobs
+ */
+ const BIG_THUMB = 1;
+ const SMALL_THUMB = 2;
+
+ /**
+ * Construct a thumbnail job
+ *
+ * @param $title Title Title object
+ * @param $params array Associative array of options:
+ * page: page number for which the thumbnail will be created
+ * jobtype: CreatePDFThumbnailsJob::BIG_THUMB or CreatePDFThumbnailsJob::SMALL_THUMB
+ * BIG_THUMB will create a thumbnail visible for full thumbnail view,
+ * SMALL_THUMB will create a thumbnail shown in "previous page"/"next page" boxes
+ *
+ */
+ public function __construct( $title, $params ) {
+ parent::__construct( 'createPdfThumbnailsJob', $title, $params );
+ }
+
+ /**
+ * Run a thumbnail job on a given PDF file.
+ * @return bool true
+ */
+ public function run() {
+ if ( !isset( $this->params['page'] ) ) {
+ wfDebugLog('thumbnails', 'A page for thumbnails job of ' . $this->title->getText() . ' was not specified! That should never happen!');
+ return true; // no page set? that should never happen
+ }
+
+ $file = wfLocalFile( $this->title ); // we just want a local file
+ if ( !$file ) {
+ return true; // Just silently fail, perhaps the file was already deleted, don't bother
+ }
+
+ switch ($this->params['jobtype']) {
+ case self::BIG_THUMB:
+ global $wgImageLimits;
+ // Ignore user preferences, do default thumbnails
+ // everything here shamelessy copied and reused from includes/ImagePage.php
+ $sizeSel = User::getDefaultOption( 'imagesize' );
+
+ // The user offset might still be incorrect, specially if
+ // $wgImageLimits got changed (see bug #8858).
+ if ( !isset( $wgImageLimits[$sizeSel] ) ) {
+ // Default to the first offset in $wgImageLimits
+ $sizeSel = 0;
+ }
+ $max = $wgImageLimits[$sizeSel];
+ $maxWidth = $max[0];
+ $maxHeight = $max[1];
+
+ $width_orig = $file->getWidth( $this->params['page'] );
+ $width = $width_orig;
+ $height_orig = $file->getHeight( $this->params['page'] );
+ $height = $height_orig;
+ if ( $width > $maxWidth || $height > $maxHeight ) {
+ # Calculate the thumbnail size.
+ # First case, the limiting factor is the width, not the height.
+ if ( $width / $height >= $maxWidth / $maxHeight ) {
+ //$height = round( $height * $maxWidth / $width );
+ $width = $maxWidth;
+ # Note that $height <= $maxHeight now.
+ } else {
+ $newwidth = floor( $width * $maxHeight / $height );
+ //$height = round( $height * $newwidth / $width );
+ $width = $newwidth;
+ # Note that $height <= $maxHeight now, but might not be identical
+ # because of rounding.
+ }
+ $transformParams = array( 'page' => $this->params['page'], 'width' => $width );
+ $file->transform( $transformParams );
+ }
+ break;
+
+ case self::SMALL_THUMB:
+ Linker::makeThumbLinkObj( $this->title, $file, '', '', 'none', array( 'page' => $this->params['page'] ) );
+ break;
+ }
+
+ return true;
+ }
+
+ /**
+ * @param $upload UploadBase
+ * @param $mime
+ * @param $error
+ * @return bool
+ */
+ public static function insertJobs( $upload, $mime, &$error ) {
+ global $wgPdfCreateThumbnailsInJobQueue;
+ if ( !$wgPdfCreateThumbnailsInJobQueue ) {
+ return true;
+ }
+ if (!MimeMagic::singleton()->isMatchingExtension('pdf', $mime)) {
+ return true; // not a PDF, abort
+ }
+
+ $title = $upload->getTitle();
+ $uploadFile = $upload->getLocalFile();
+ if ( is_null( $uploadFile ) ) {
+ wfDebugLog('thumbnails', '$uploadFile seems to be null, should never happen...');
+ return true; // should never happen, but it's better to be secure
+ }
+
+ $metadata = $uploadFile->getMetadata();
+ $unserialized = unserialize( $metadata );
+ $pages = intval( $unserialized['Pages'] );
+
+ $jobs = array();
+ for ( $i = 1; $i <= $pages; $i++ ) {
+ $jobs[] = new CreatePdfThumbnailsJob( $title,
+ array( 'page' => $i, 'jobtype' => self::BIG_THUMB )
+ );
+ $jobs[] = new CreatePdfThumbnailsJob( $title,
+ array( 'page' => $i, 'jobtype' => self::SMALL_THUMB )
+ );
+ }
+ Job::batchInsert( $jobs );
+ return true;
+ }
+}