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<?php declare(strict_types=1); |
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/** |
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* @package s9e\TextFormatter |
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* @copyright Copyright (c) 2010-2022 The s9e authors |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License |
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*/ |
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namespace s9e\TextFormatter\Configurator\JavaScript; |
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use s9e\SweetDOM\Document; |
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use s9e\TextFormatter\Configurator\Helpers\AVTHelper; |
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class FunctionCache |
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{ |
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protected array $cache = []; |
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/** |
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* @var array Map of JavaScript interfaces that may be useful to Google Closure Compiler |
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*/ |
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public array $elementInterfaces = [ |
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'iframe' => 'HTMLIFrameElement', |
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'script' => 'HTMLScriptElement' |
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]; |
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/** |
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* Add all live preview events from given XSL |
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*/ |
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public function addFromXSL(string $xsl): void |
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{ |
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$dom = new Document; |
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$dom->loadXML($xsl); |
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foreach ($dom->query('//@*[starts-with(name(), "data-s9e-livepreview-on")]') as $attribute) |
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{ |
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$js = $attribute->textContent; |
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$avt = AVTHelper::parse($attribute->textContent); |
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if (count($avt) !== 1 || $avt[0][0] !== 'literal') |
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{ |
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continue; |
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} |
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// Use the unescaped value from AVTHelper |
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$js = $avt[0][1]; |
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$key = (string) Hasher::quickHash($js); |
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// Make sure the code ends with a semicolon or a brace |
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if (!preg_match('([;}]$)', $js)) |
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{ |
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$js .= ';'; |
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} |
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$this->cache[$key]['code'] = $js; |
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$this->cache[$key]['elements'][] = $attribute->parentNode->tagName; |
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} |
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} |
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/** |
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* @return string Current cache as a JSON object |
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*/ |
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public function getJSON(): string |
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{ |
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$cache = []; |
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foreach ($this->cache as $key => $entry) |
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{ |
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$types = []; |
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foreach ($entry['elements'] as $nodeName) |
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{ |
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// Use the element's JavaScript interface if known, otherwise just use Element |
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$types[] = '!' . ($this->elementInterfaces[$nodeName] ?? 'Element'); |
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} |
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$types = array_unique($types); |
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sort($types); |
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$cache[$key] = json_encode((string) $key) . ':/**@this {' . implode('|', $types) . '}*/function(){' . $entry['code'] . '}'; |
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} |
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ksort($cache); |
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return '{' . implode(',', $cache) . '}'; |
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} |
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} |
s9e /
TextFormatter
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