Differential D20595 Diff 49153 src/applications/transactions/view/PhabricatorApplicationTransactionTextDiffDetailView.php

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src/applications/transactions/view/PhabricatorApplicationTransactionTextDiffDetailView.php

	<?php			<?php

	final class PhabricatorApplicationTransactionTextDiffDetailView			final class PhabricatorApplicationTransactionTextDiffDetailView
	extends AphrontView {			extends PhabricatorApplicationTransactionDetailView {}

	private $oldText;
	private $newText;

	public function setNewText($new_text) {
	$this->newText = $new_text;
	return $this;
	}

	public function setOldText($old_text) {
	$this->oldText = $old_text;
	return $this;
	}

	public function renderForMail() {
	$diff = $this->buildDiff();

	$viewer = $this->getViewer();
	$old_bright = $viewer->getCSSValue('old-bright');
	$new_bright = $viewer->getCSSValue('new-bright');

	$old_styles = array(
	'padding: 0 2px;',
	'color: #333333;',
	"background: {$old_bright};",
	);
	$old_styles = implode(' ', $old_styles);

	$new_styles = array(
	'padding: 0 2px;',
	'color: #333333;',
	"background: {$new_bright};",
	);
	$new_styles = implode(' ', $new_styles);

	$omit_styles = array(
	'padding: 8px 0;',
	);
	$omit_styles = implode(' ', $omit_styles);

	$result = array();
	foreach ($diff->getSummaryParts() as $part) {
	$type = $part['type'];
	$text = $part['text'];
	switch ($type) {
	case '.':
	$result[] = phutil_tag(
	'div',
	array(
	'style' => $omit_styles,
	),
	pht('...'));
	break;
	case '-':
	$result[] = phutil_tag(
	'span',
	array(
	'style' => $old_styles,
	),
	$text);
	break;
	case '+':
	$result[] = phutil_tag(
	'span',
	array(
	'style' => $new_styles,
	),
	$text);
	break;
	case '=':
	$result[] = $text;
	break;
	}
	}

	$styles = array(
	'white-space: pre-wrap;',
	'color: #74777D;',
	);

	// Beyond applying "pre-wrap", convert newlines to "<br />" explicitly
	// to improve behavior in clients like Airmail.
	$result = phutil_escape_html_newlines($result);

	return phutil_tag(
	'div',
	array(
	'style' => implode(' ', $styles),
	),
	$result);
	}

	public function render() {
	$diff = $this->buildDiff();

	require_celerity_resource('differential-changeset-view-css');

	$result = array();
	foreach ($diff->getParts() as $part) {
	$type = $part['type'];
	$text = $part['text'];
	switch ($type) {
	case '-':
	$result[] = phutil_tag(
	'span',
	array(
	'class' => 'old',
	),
	$text);
	break;
	case '+':
	$result[] = phutil_tag(
	'span',
	array(
	'class' => 'new',
	),
	$text);
	break;
	case '=':
	$result[] = $text;
	break;
	}
	}

	$diff_view = phutil_tag(
	'div',
	array(
	'class' => 'prose-diff',
	),
	$result);

	$old_view = phutil_tag(
	'div',
	array(
	'class' => 'prose-diff',
	),
	$this->oldText);

	$new_view = phutil_tag(
	'div',
	array(
	'class' => 'prose-diff',
	),
	$this->newText);

	return id(new PHUITabGroupView())
	->addTab(
	id(new PHUITabView())
	->setKey('old')
	->setName(pht('Old'))
	->appendChild($old_view))
	->addTab(
	id(new PHUITabView())
	->setKey('new')
	->setName(pht('New'))
	->appendChild($new_view))
	->addTab(
	id(new PHUITabView())
	->setKey('diff')
	->setName(pht('Diff'))
	->appendChild($diff_view))
	->selectTab('diff');
	}

	private function buildDiff() {
	$engine = new PhutilProseDifferenceEngine();
	return $engine->getDiff($this->oldText, $this->newText);
	}

	}