MockBitmapHandler.php

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<?php
class MockBitmapHandler extends BitmapHandler {
    function doTransform( $image, $dstPath, $dstUrl, $params, $flags = 0 ) {
        return MockImageHandler::doFakeTransform( $this, $image, $dstPath, $dstUrl, $params, $flags );
    }
    function doClientImage( $image, $scalerParams ) {
            return $this->getClientScalingThumbnailImage( $image, $scalerParams );
    }
}
class MockSvgHandler extends SvgHandler {
    function doTransform( $image, $dstPath, $dstUrl, $params, $flags = 0 ) {
        return MockImageHandler::doFakeTransform( $this, $image, $dstPath, $dstUrl, $params, $flags );
    }
}
class MockImageHandler {

    static function doFakeTransform( $that, $image, $dstPath, $dstUrl, $params, $flags = 0 ) {
        # Example of what we receive:
        # $image: LocalFile
        # $dstPath: /tmp/transform_7d0a7a2f1a09-1.jpg
        # $dstUrl : http://example.com/images/thumb/0/09/Bad.jpg/320px-Bad.jpg
        # $params:  width: 320,  descriptionUrl http://trunk.dev/wiki/File:Bad.jpg

        $that->normaliseParams( $image, $params );

        $scalerParams = array(
            # The size to which the image will be resized
            'physicalWidth' => $params['physicalWidth'],
            'physicalHeight' => $params['physicalHeight'],
            'physicalDimensions' => "{$params['physicalWidth']}x{$params['physicalHeight']}",
            # The size of the image on the page
            'clientWidth' => $params['width'],
            'clientHeight' => $params['height'],
            # Comment as will be added to the EXIF of the thumbnail
            'comment' => isset( $params['descriptionUrl'] ) ?
            "File source: {$params['descriptionUrl']}" : '',
            # Properties of the original image
            'srcWidth' => $image->getWidth(),
            'srcHeight' => $image->getHeight(),
            'mimeType' => $image->getMimeType(),
            'dstPath' => $dstPath,
            'dstUrl' => $dstUrl,
        );

        # In some cases, we do not bother generating a thumbnail.
        if ( !$image->mustRender() &&
            $scalerParams['physicalWidth'] == $scalerParams['srcWidth']
            && $scalerParams['physicalHeight'] == $scalerParams['srcHeight']
        ) {
            wfDebug( __METHOD__ . ": returning unscaled image\n" );
            // getClientScalingThumbnailImage is protected
            return $that->doClientImage( $image, $scalerParams );
        }

        return new ThumbnailImage( $image, $dstUrl, false, $params );
    }
}