update to MediaWiki 1.17.0

1 files changed, 82 insertions, 0 deletions

diff --git a/includes/media/PNG.php b/includes/media/PNG.php
new file mode 100644
index 00000000..5197282c
--- /dev/null
+++ b/includes/media/PNG.php
@@ -0,0 +1,82 @@
+<?php
+/**
+ * Handler for PNG images.
+ *
+ * @file
+ * @ingroup Media
+ */
+
+/**
+ * Handler for PNG images.
+ *
+ * @ingroup Media
+ */
+class PNGHandler extends BitmapHandler {
+	
+	function getMetadata( $image, $filename ) {
+		if ( !isset($image->parsedPNGMetadata) ) {
+			try {
+				$image->parsedPNGMetadata = PNGMetadataExtractor::getMetadata( $filename );
+			} catch( Exception $e ) {
+				// Broken file?
+				wfDebug( __METHOD__ . ': ' . $e->getMessage() . "\n" );
+				return '0';
+			}
+		}
+
+		return serialize($image->parsedPNGMetadata);
+
+	}
+	
+	function formatMetadata( $image ) {
+		return false;
+	}
+	
+	function isAnimatedImage( $image ) {
+		$ser = $image->getMetadata();
+		if ($ser) {
+			$metadata = unserialize($ser);
+			if( $metadata['frameCount'] > 1 ) return true;
+		}
+		return false;
+	}
+	
+	function getMetadataType( $image ) {
+		return 'parsed-png';
+	}
+	
+	function isMetadataValid( $image, $metadata ) {
+		wfSuppressWarnings();
+		$data = unserialize( $metadata );
+		wfRestoreWarnings();
+		return (boolean) $data;
+	}
+	function getLongDesc( $image ) {
+		global $wgLang;
+		$original = parent::getLongDesc( $image );
+
+		wfSuppressWarnings();
+		$metadata = unserialize($image->getMetadata());
+		wfRestoreWarnings();
+
+		if( !$metadata || $metadata['frameCount'] <= 0 )
+			return $original;
+
+		$info = array();
+		$info[] = $original;
+		
+		if ($metadata['loopCount'] == 0)
+			$info[] = wfMsgExt( 'file-info-png-looped', 'parseinline' );
+		elseif ($metadata['loopCount'] > 1)
+			$info[] = wfMsgExt( 'file-info-png-repeat', 'parseinline', $metadata['loopCount'] );
+		
+		if ($metadata['frameCount'] > 0)
+			$info[] = wfMsgExt( 'file-info-png-frames', 'parseinline', $metadata['frameCount'] );
+		
+		if ($metadata['duration'])
+			$info[] = $wgLang->formatTimePeriod( $metadata['duration'] );
+		
+		return $wgLang->commaList( $info );
+	}
+
+}