Initial commit - Typo3 11.5.41
This commit is contained in:
Matteo Gallo
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<?php
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declare(strict_types=1);
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace Brightside\Embedassets\ViewHelpers\Asset;
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use TYPO3\CMS\Core\Page\AssetCollector;
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use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractTagBasedViewHelper;
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use TYPO3Fluid\Fluid\Core\ViewHelper\TagBuilder;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use MatthiasMullie\Minify;
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/**
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* CssViewHelper
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*
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* Examples
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* ========
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*
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* ::
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*
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* <f:asset.css identifier="identifier123" href="EXT:my_ext/Resources/Public/Css/foo.css" />
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* <f:asset.css identifier="identifier123">
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* .foo { color: black; }
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* </f:asset.css>
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*
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* See also :ref:`changelog-Feature-90522-IntroduceAssetCollector`
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*/
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final class CssViewHelper extends AbstractTagBasedViewHelper
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{
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/**
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* This VH does not produce direct output, thus does not need to be wrapped in an escaping node
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*
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* @var bool
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*/
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protected $escapeOutput = false;
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/**
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* Rendered children string is passed as CSS code,
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* there is no point in HTML encoding anything from that.
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*
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* @var bool
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*/
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protected $escapeChildren = true;
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protected AssetCollector $assetCollector;
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public function injectAssetCollector(AssetCollector $assetCollector): void
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{
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$this->assetCollector = $assetCollector;
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}
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public function initialize(): void
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{
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// Add a tag builder, that does not html encode values, because rendering with encoding happens in AssetRenderer
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$this->setTagBuilder(
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new class () extends TagBuilder {
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public function addAttribute($attributeName, $attributeValue, $escapeSpecialCharacters = false): void
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{
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parent::addAttribute($attributeName, $attributeValue, false);
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}
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}
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);
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parent::initialize();
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}
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public function initializeArguments(): void
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{
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parent::initializeArguments();
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$this->registerUniversalTagAttributes();
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$this->registerTagAttribute('as', 'string', 'Define the type of content being loaded (For rel="preload" or rel="prefetch" only).', false);
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$this->registerTagAttribute('crossorigin', 'string', 'Define how to handle crossorigin requests.', false);
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$this->registerTagAttribute('disabled', 'bool', 'Define whether or not the described stylesheet should be loaded and applied to the document.', false);
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$this->registerTagAttribute('href', 'string', 'Define the URL of the resource (absolute or relative).', false);
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$this->registerTagAttribute('hreflang', 'string', 'Define the language of the resource (Only to be used if \'href\' is set).', false);
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$this->registerTagAttribute('importance', 'string', 'Define the relative fetch priority of the resource.', false);
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$this->registerTagAttribute('integrity', 'string', 'Define base64-encoded cryptographic hash of the resource that allows browsers to verify what they fetch.', false);
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$this->registerTagAttribute('media', 'string', 'Define which media type the resources applies to.', false);
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$this->registerTagAttribute('referrerpolicy', 'string', 'Define which referrer is sent when fetching the resource.', false);
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$this->registerTagAttribute('rel', 'string', 'Define the relationship of the target object to the link object.', false);
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$this->registerTagAttribute('sizes', 'string', 'Define the icon size of the resource.', false);
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$this->registerTagAttribute('type', 'string', 'Define the MIME type (usually \'text/css\').', false);
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$this->registerTagAttribute('nonce', 'string', 'Define a cryptographic nonce (number used once) used to whitelist inline styles in a style-src Content-Security-Policy.', false);
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$this->registerArgument(
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'identifier',
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'string',
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'Use this identifier within templates to only inject your CSS once, even though it is added multiple times.',
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true
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);
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$this->registerArgument(
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'priority',
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'boolean',
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'Define whether the CSS should be included before other CSS. CSS will always be output in the <head> tag.',
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false,
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false
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);
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$this->registerArgument(
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'embed',
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'boolean',
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'Define whether or not the described stylesheet should be embedded into HTML output.',
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false,
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false
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);
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}
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protected function getPageRenderer(): PageRenderer
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{
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return GeneralUtility::makeInstance(PageRenderer::class);
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}
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public function render(): string
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{
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$identifier = (string)$this->arguments['identifier'];
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$attributes = $this->tag->getAttributes();
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// boolean attributes shall output attr="attr" if set
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if ($attributes['disabled'] ?? false) {
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$attributes['disabled'] = 'disabled';
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}
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$file = $attributes['href'] ?? null;
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unset($attributes['href']);
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$options = [
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'priority' => $this->arguments['priority'],
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];
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$minifier = new Minify\CSS();
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if ($file !== null) {
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if ($this->arguments['embed']) {
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$filecontent = (string)file_get_contents(GeneralUtility::getFileAbsFileName(trim($file)));
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$minifier->add($filecontent);
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$filecontent = $minifier->minify();
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$this->assetCollector->addInlineStyleSheet($identifier, $filecontent, $attributes, $options);
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} else {
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$this->assetCollector->addStyleSheet($identifier, $file, $attributes, $options);
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}
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} else {
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$content = (string)$this->renderChildren();
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if ($content !== '') {
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$minifier->add($content);
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$content = $minifier->minify();
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$this->assetCollector->addInlineStyleSheet($identifier, $content, $attributes, $options);
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}
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}
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return '';
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}
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}
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