PhabricatorRemarkupRuleYoutube.php
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	<?php

	final class PhabricatorRemarkupRuleYoutube extends PhutilRemarkupRule {

	public function getPriority() {
	return 350.0;
	}

	public function apply($text) {
	$this->uri = new PhutilURI($text);

	if ($this->uri->getDomain() &&
	preg_match('/(^\|\.)youtube\.com$/', $this->uri->getDomain()) &&
	idx($this->uri->getQueryParams(), 'v')) {
	return $this->markupYoutubeLink();
	}

	return $text;
	}

	public function markupYoutubeLink() {
	$v = idx($this->uri->getQueryParams(), 'v');

	if ($this->getEngine()->isTextMode()) {
	return $this->getEngine()->storeText('http://youtu.be/'.$v);
	}

	$youtube_src = 'https://www.youtube.com/embed/'.$v;
	$iframe = $this->newTag(
	'div',
	array(
	'class' => 'embedded-youtube-video',
	),
	$this->newTag(
	'iframe',
	array(
	'width' => '650',
	'height' => '400',
	'style' => 'margin: 1em auto; border: 0px;',
	'src' => $youtube_src,
	'frameborder' => 0,
	),
	''));
	return $this->getEngine()->storeText($iframe);
	}

	}