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	diff --git a/src/applications/files/markup/PhabricatorEmbedFileRemarkupRule.php b/src/applications/files/markup/PhabricatorEmbedFileRemarkupRule.php
	index fe0bb1da7a..87d611c0ef 100644
	--- a/src/applications/files/markup/PhabricatorEmbedFileRemarkupRule.php
	+++ b/src/applications/files/markup/PhabricatorEmbedFileRemarkupRule.php
	@@ -1,228 +1,228 @@
	<?php

	final class PhabricatorEmbedFileRemarkupRule
	extends PhabricatorObjectRemarkupRule {

	const KEY_EMBED_FILE_PHIDS = 'phabricator.embedded-file-phids';

	protected function getObjectNamePrefix() {
	return 'F';
	}

	protected function loadObjects(array $ids) {
	$engine = $this->getEngine();

	$viewer = $engine->getConfig('viewer');
	$objects = id(new PhabricatorFileQuery())
	->setViewer($viewer)
	->withIDs($ids)
	->execute();

	$phids_key = self::KEY_EMBED_FILE_PHIDS;
	$phids = $engine->getTextMetadata($phids_key, array());
	foreach (mpull($objects, 'getPHID') as $phid) {
	$phids[] = $phid;
	}
	$engine->setTextMetadata($phids_key, $phids);

	return $objects;
	}

	protected function renderObjectEmbed(
	$object,
	PhabricatorObjectHandle $handle,
	$options) {

	$options = $this->getFileOptions($options) + array(
	'name' => $object->getName(),
	);

	$is_viewable_image = $object->isViewableImage();
	$is_audio = $object->isAudio();
	$force_link = ($options['layout'] == 'link');

	$options['viewable'] = ($is_viewable_image \|\| $is_audio);

	if ($is_viewable_image && !$force_link) {
	return $this->renderImageFile($object, $handle, $options);
	} else if ($is_audio && !$force_link) {
	return $this->renderAudioFile($object, $handle, $options);
	} else {
	return $this->renderFileLink($object, $handle, $options);
	}
	}

	private function getFileOptions($option_string) {
	$options = array(
	'size' => null,
	'layout' => 'left',
	'float' => false,
	'width' => null,
	'height' => null,
	'alt' => null,
	);

	if ($option_string) {
	$option_string = trim($option_string, ', ');
	$parser = new PhutilSimpleOptions();
	$options = $parser->parse($option_string) + $options;
	}

	return $options;
	}

	private function renderImageFile(
	PhabricatorFile $file,
	PhabricatorObjectHandle $handle,
	array $options) {

	require_celerity_resource('lightbox-attachment-css');

	$attrs = array();
	$image_class = null;

	$use_size = true;
	if (!$options['size']) {
	$width = $this->parseDimension($options['width']);
	$height = $this->parseDimension($options['height']);
	if ($width \|\| $height) {
	$use_size = false;
	$attrs += array(
	'src' => $file->getBestURI(),
	'width' => $width,
	'height' => $height,
	);
	}
	}

	if ($use_size) {
	switch ((string)$options['size']) {
	case 'full':
	$attrs += array(
	'src' => $file->getBestURI(),
	'height' => $file->getImageHeight(),
	'width' => $file->getImageWidth(),
	);
	$image_class = 'phabricator-remarkup-embed-image-full';
	break;
	case 'thumb':
	default:
	$attrs['src'] = $file->getPreview220URI();
	$dimensions =
	PhabricatorImageTransformer::getPreviewDimensions($file, 220);
	- $attrs['width'] = $dimensions['sdx'];
	- $attrs['height'] = $dimensions['sdy'];
	+ $attrs['width'] = $dimensions['dx'];
	+ $attrs['height'] = $dimensions['dy'];
	$image_class = 'phabricator-remarkup-embed-image';
	break;
	}
	}

	if (isset($options['alt'])) {
	$attrs['alt'] = $options['alt'];
	}

	$img = phutil_tag('img', $attrs);

	$embed = javelin_tag(
	'a',
	array(
	'href' => $file->getBestURI(),
	'class' => $image_class,
	'sigil' => 'lightboxable',
	'meta' => array(
	'phid' => $file->getPHID(),
	'uri' => $file->getBestURI(),
	'dUri' => $file->getDownloadURI(),
	'viewable' => true,
	),
	),
	$img);

	switch ($options['layout']) {
	case 'right':
	case 'center':
	case 'inline':
	case 'left':
	$layout_class = 'phabricator-remarkup-embed-layout-'.$options['layout'];
	break;
	default:
	$layout_class = 'phabricator-remarkup-embed-layout-left';
	break;
	}

	if ($options['float']) {
	switch ($options['layout']) {
	case 'center':
	case 'inline':
	break;
	case 'right':
	$layout_class .= ' phabricator-remarkup-embed-float-right';
	break;
	case 'left':
	default:
	$layout_class .= ' phabricator-remarkup-embed-float-left';
	break;
	}
	}

	return phutil_tag(
	($options['layout'] == 'inline' ? 'span' : 'div'),
	array(
	'class' => $layout_class,
	),
	$embed);
	}

	private function renderAudioFile(
	PhabricatorFile $file,
	PhabricatorObjectHandle $handle,
	array $options) {

	if (idx($options, 'autoplay')) {
	$preload = 'auto';
	$autoplay = 'autoplay';
	} else {
	$preload = 'none';
	$autoplay = null;
	}

	return $this->newTag(
	'audio',
	array(
	'controls' => 'controls',
	'preload' => $preload,
	'autoplay' => $autoplay,
	'loop' => idx($options, 'loop') ? 'loop' : null,
	),
	$this->newTag(
	'source',
	array(
	'src' => $file->getBestURI(),
	'type' => $file->getMimeType(),
	)));
	}

	private function renderFileLink(
	PhabricatorFile $file,
	PhabricatorObjectHandle $handle,
	array $options) {

	return id(new PhabricatorFileLinkView())
	->setFilePHID($file->getPHID())
	->setFileName($this->assertFlatText($options['name']))
	->setFileDownloadURI($file->getDownloadURI())
	->setFileViewURI($file->getBestURI())
	->setFileViewable((bool)$options['viewable']);
	}

	private function parseDimension($string) {
	$string = trim($string);

	if (preg_match('/^(?:\d*\\.)?\d+%?$/', $string)) {
	return $string;
	}

	return null;
	}

	}

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