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<?php
/**
* Decorator that inserts debugging hints into the rendered block contents
*
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Developer\Model\TemplateEngine\Decorator;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\Math\Random;
use Magento\Framework\View\Helper\SecureHtmlRenderer;
/**
* Decorates block with block and template hints
*
* @api
* @since 100.0.2
*/
class DebugHints implements \Magento\Framework\View\TemplateEngineInterface
{
/**
* @var \Magento\Framework\View\TemplateEngineInterface
*/
private $_subject;
/**
* @var bool
*/
private $_showBlockHints;
/**
* @var SecureHtmlRenderer
*/
protected $secureRenderer;
/**
* @var Random
*/
private $random;
/**
* @param \Magento\Framework\View\TemplateEngineInterface $subject
* @param bool $showBlockHints Whether to include block into the debugging information or not
* @param SecureHtmlRenderer|null $secureRenderer
* @param Random|null $random
*/
public function __construct(
\Magento\Framework\View\TemplateEngineInterface $subject,
$showBlockHints,
?SecureHtmlRenderer $secureRenderer = null,
?Random $random = null
) {
$this->_subject = $subject;
$this->_showBlockHints = $showBlockHints;
$this->random = $random ?? ObjectManager::getInstance()->get(Random::class);
$this->secureRenderer = $secureRenderer ?? ObjectManager::getInstance()->get(SecureHtmlRenderer::class);
}
/**
* Insert debugging hints into the rendered block contents
*
* Insert debugging hints into the rendered block contents
* @inheritdoc
*/
public function render(\Magento\Framework\View\Element\BlockInterface $block, $templateFile, array $dictionary = [])
{
$result = $this->_subject->render($block, $templateFile, $dictionary);
if ($this->_showBlockHints) {
$result = $this->_renderBlockHints($result, $block);
}
$result = $this->_renderTemplateHints($result, $templateFile);
return $result;
}
/**
* Insert template debugging hints into the rendered block contents
*
* @param string $blockHtml
* @param string $templateFile
* @return string
*/
protected function _renderTemplateHints($blockHtml, $templateFile)
{
$hintsId = 'hintsId_' .$this->random->getRandomString(32);
$hintsTemplateFileId = 'hintsTemplateFileId_' .$this->random->getRandomString(32);
$scriptString = <<<HTML
<div class="debugging-hints" id="{$hintsId}">
<div class="debugging-hint-template-file" id="{$hintsTemplateFileId}" title="{$templateFile}">{$templateFile}</div>
{$blockHtml}
</div>
HTML;
return $scriptString .
$this->secureRenderer->renderStyleAsTag(
"position: relative; border: 1px dotted red; margin: 6px 2px; padding: 18px 2px 2px 2px;",
'#' . $hintsId
) . $this->secureRenderer->renderStyleAsTag(
"position: absolute; top: 0; padding: 2px 5px; font: normal 11px Arial; background: red; left: 0;" .
" color: white; white-space: nowrap;",
'#' . $hintsTemplateFileId
) . $this->secureRenderer->renderEventListenerAsTag(
'onmouseover',
"this.style.zIndex = 999;",
'#' . $hintsTemplateFileId
) . $this->secureRenderer->renderEventListenerAsTag(
'onmouseout',
"this.style.zIndex = 'auto';",
'#' . $hintsTemplateFileId
);
}
/**
* Insert block debugging hints into the rendered block contents
*
* @param string $blockHtml
* @param \Magento\Framework\View\Element\BlockInterface $block
* @return string
*/
protected function _renderBlockHints($blockHtml, \Magento\Framework\View\Element\BlockInterface $block)
{
$blockClass = get_class($block);
$hintsId = 'hintsBlockId_' .$this->random->getRandomString(32);
$scriptString = <<<HTML
<div class="debugging-hint-block-class" id="{$hintsId}" title="{$blockClass}">{$blockClass}</div>
{$blockHtml}
HTML;
return $scriptString .
$this->secureRenderer->renderStyleAsTag(
"position: absolute; top: 0; padding: 2px 5px; font: normal 11px Arial; background: red; right: 0;" .
" color: blue; white-space: nowrap;",
'#' . $hintsId
) . $this->secureRenderer->renderEventListenerAsTag(
'onmouseover',
"this.style.zIndex = 999;",
'#' . $hintsId
) . $this->secureRenderer->renderEventListenerAsTag(
'onmouseout',
"this.style.zIndex = 'auto';",
'#' . $hintsId
);
}
}