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<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Messaging;
use TYPO3\CMS\Core\Core\Environment;
use TYPO3\CMS\Core\Http\ApplicationType;
use TYPO3\CMS\Core\Http\ServerRequest;
use TYPO3\CMS\Core\Messaging\Renderer\BootstrapRenderer;
use TYPO3\CMS\Core\Messaging\Renderer\FlashMessageRendererInterface;
use TYPO3\CMS\Core\Messaging\Renderer\ListRenderer;
use TYPO3\CMS\Core\Messaging\Renderer\PlaintextRenderer;
use TYPO3\CMS\Core\Utility\GeneralUtility;
/**
* A class for rendering flash messages.
*/
class FlashMessageRendererResolver
{
/**
* @var array
*/
protected $renderer = [
'BE' => BootstrapRenderer::class,
'FE' => ListRenderer::class,
'CLI' => PlaintextRenderer::class,
'_default' => PlaintextRenderer::class,
];
/**
* This method resolves a FlashMessageRendererInterface for the given $context.
*
* In case $context is null, the context will be detected automatic.
*/
public function resolve(): FlashMessageRendererInterface
{
$rendererClass = $this->resolveFlashMessageRenderClass();
$renderer = GeneralUtility::makeInstance($rendererClass);
if (!$renderer instanceof FlashMessageRendererInterface) {
throw new \RuntimeException('Renderer ' . get_class($renderer)
. ' does not implement FlashMessageRendererInterface', 1476958086);
}
return $renderer;
}
/**
* This method resolves the renderer class by given context.
*/
protected function resolveFlashMessageRenderClass(): string
{
$context = $this->resolveContext();
$renderClass = $this->renderer['_default'];
if (!empty($this->renderer[$context])) {
$renderClass = $this->renderer[$context];
}
return $renderClass;
}
/**
* This method detect the current context and return one of the
* following strings:
* - FE
* - BE
* - CLI
*/
protected function resolveContext(): string
{
$context = '';
$request = $GLOBALS['TYPO3_REQUEST'] ?? null;
if (Environment::isCli()) {
$context = 'CLI';
} elseif ($request instanceof ServerRequest && ApplicationType::fromRequest($request)->isBackend()) {
$context = 'BE';
} elseif ($request instanceof ServerRequest && ApplicationType::fromRequest($request)->isFrontend()) {
$context = 'FE';
}
return $context;
}
}