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phab/src/applications/transactions/view/PhabricatorApplicationTransactionTextDiffDetailView.php
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PhabricatorApplicationTransactionTextDiffDetailView.php
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<?php
final class PhabricatorApplicationTransactionTextDiffDetailView
extends AphrontView {
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);
}
}
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