PHUIDiffTwoUpInlineCommentRowScaffold.php
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	<?php

	/**
	* Row scaffold for 2up (side-by-side) changeset views.
	*
	* Although this scaffold is normally straightforward, it may also accept
	* two inline comments and display them adjacently.
	*/
	final class PHUIDiffTwoUpInlineCommentRowScaffold
	extends PHUIDiffInlineCommentRowScaffold {

	public function render() {
	$inlines = $this->getInlineViews();

	if (!$inlines) {
	throw new Exception(
	pht('Two-up inline row scaffold must have at least one inline view.'));
	}

	if (count($inlines) > 2) {
	throw new Exception(
	pht('Two-up inline row scaffold must have at most two inline views.'));
	}

	if (count($inlines) == 1) {
	$inline = head($inlines);
	if ($inline->getIsOnRight()) {
	$left_side = null;
	$right_side = $inline;
	} else {
	$left_side = $inline;
	$right_side = null;
	}
	} else {
	list($u, $v) = $inlines;

	if ($u->getIsOnRight() == $v->getIsOnRight()) {
	throw new Exception(
	pht(
	'Two-up inline row scaffold must have one comment on the left and '.
	'one comment on the right when showing two comments.'));
	}

	if ($v->getIsOnRight()) {
	$left_side = $u;
	$right_side = $v;
	} else {
	$left_side = $v;
	$right_side = $u;
	}
	}

	$left_attrs = array(
	'class' => 'left',
	);

	$right_attrs = array(
	'colspan' => 3,
	'class' => 'right3',
	);

	$cells = array(
	phutil_tag('th', array()),
	phutil_tag('td', $left_attrs, $left_side),
	phutil_tag('th', array()),
	phutil_tag('td', $right_attrs, $right_side),
	);

	return phutil_tag('tr', $this->getRowAttributes(), $cells);
	}

	}