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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\gii\components;
/**
* Renders diff to HTML. Output adjusted to be copy-paste friendly.
*
* @author Alexander Makarov <sam@rmcreative.ru>
* @since 2.0
*/
class DiffRendererHtmlInline extends \Diff_Renderer_Html_Array
{
/**
* Render a and return diff with changes between the two sequences
* displayed inline (under each other)
*
* @return string The generated inline diff.
*/
public function render()
{
$changes = parent::render();
$html = '';
if (empty($changes)) {
return $html;
}
$html .= <<<HTML
<table class="Differences DifferencesInline">
<thead>
<tr>
<th>Old</th>
<th>New</th>
<th>Differences</th>
</tr>
</thead>
HTML;
foreach ($changes as $i => $blocks) {
// If this is a separate block, we're condensing code so output ...,
// indicating a significant portion of the code has been collapsed as
// it is the same
if ($i > 0) {
$html .= <<<HTML
<tbody class="Skipped">
<th data-line-number="…"></th>
<th data-line-number="…"></th>
<td> </td>
</tbody>
HTML;
}
foreach ($blocks as $change) {
$tag = ucfirst($change['tag']);
$html .= <<<HTML
<tbody class="Change{$tag}">
HTML;
// Equal changes should be shown on both sides of the diff
if ($change['tag'] === 'equal') {
foreach ($change['base']['lines'] as $no => $line) {
$fromLine = $change['base']['offset'] + $no + 1;
$toLine = $change['changed']['offset'] + $no + 1;
$html .= <<<HTML
<tr>
<th data-line-number="{$fromLine}"></th>
<th data-line-number="{$toLine}"></th>
<td class="Left">{$line}</td>
</tr>
HTML;
}
}
// Added lines only on the right side
elseif ($change['tag'] === 'insert') {
foreach ($change['changed']['lines'] as $no => $line) {
$toLine = $change['changed']['offset'] + $no + 1;
$html .= <<<HTML
<tr>
<th data-line-number=" "></th>
<th data-line-number="{$toLine}"></th>
<td class="Right"><ins>{$line}</ins> </td>
</tr>
HTML;
}
}
// Show deleted lines only on the left side
elseif ($change['tag'] === 'delete') {
foreach ($change['base']['lines'] as $no => $line) {
$fromLine = $change['base']['offset'] + $no + 1;
$html .= <<<HTML
<tr>
<th data-line-number="{$fromLine}"></th>
<th data-line-number=" "></th>
<td class="Left"><del>{$line}</del> </td>
</tr>
HTML;
}
}
// Show modified lines on both sides
elseif ($change['tag'] === 'replace') {
foreach ($change['base']['lines'] as $no => $line) {
$fromLine = $change['base']['offset'] + $no + 1;
$html .= <<<HTML
<tr>
<th data-line-number="{$fromLine}"></th>
<th data-line-number=" "></th>
<td class="Left"><span>{$line}</span></td>
</tr>
HTML;
}
foreach ($change['changed']['lines'] as $no => $line) {
$toLine = $change['changed']['offset'] + $no + 1;
$html .= <<<HTML
<tr>
<th data-line-number="{$toLine}"></th>
<th data-line-number=" "></th>
<td class="Right"><span>{$line}</span></td>
</tr>
HTML;
}
}
$html .= <<<HTML
</tbody>
HTML;
}
}
$html .= <<<HTML
</table>
HTML;
return $html;
}
}