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<?php |
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namespace Groundskeeper\Tokens\Elements; |
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use Groundskeeper\Tokens\Attribute; |
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use Groundskeeper\Tokens\ElementTypes\OpenElement; |
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use Groundskeeper\Tokens\NonParticipating; |
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use Psr\Log\LoggerInterface; |
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/** |
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* "html" element |
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* |
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* https://html.spec.whatwg.org/multipage/semantics.html#the-html-element |
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*/ |
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class Html extends OpenElement |
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{ |
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protected function getAllowedAttributes() |
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{ |
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$htmlAllowedAttributes = array( |
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'/^manifest$/i' => Attribute::URI |
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); |
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return array_merge( |
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$htmlAllowedAttributes, |
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parent::getAllowedAttributes() |
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); |
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} |
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protected function fixSelf(LoggerInterface $logger) |
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{ |
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$bodyCount = 0; |
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$headCount = 0; |
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$headIsFirst = false; |
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foreach ($this->children as $key => $child) { |
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// Check for HEAD and BODY |
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if ($child instanceof Head) { |
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++$headCount; |
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if ($bodyCount == 0) { |
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$headIsFirst = true; |
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} |
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} elseif ($child instanceof Body) { |
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++$bodyCount; |
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} |
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} |
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// Handle missing HEAD element child. |
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if ($headCount == 0) { |
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$logger->debug('Missing "head" element added.'); |
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$head = new Head($this->configuration, 0, 0, 'head'); |
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$this->prependChild($head); |
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} |
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// Handle missing BODY element child. |
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if ($bodyCount == 0) { |
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$logger->debug('Missing "body" element added.'); |
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$body = new Body($this->configuration, 0, 0, 'body'); |
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$this->appendChild($body); |
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} |
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// Handle BODY before HEAD. |
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if (!$headIsFirst && $bodyCount > 0 && $headCount > 0) { |
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foreach ($this->children as $key => $child) { |
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if ($child instanceof Body) { |
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$logger->debug('Moved "body" element to end of "html" element children.'); |
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unset($this->children[$key]); |
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$this->appendChild($child); |
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break; |
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} |
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} |
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} |
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} |
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protected function removeInvalidChildren(LoggerInterface $logger) |
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{ |
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$bodyCount = 0; |
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$headCount = 0; |
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foreach ($this->children as $child) { |
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if ($child instanceof NonParticipating) { |
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continue; |
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} |
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// Check for HEAD and BODY |
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if ($child instanceof Head) { |
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++$headCount; |
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// Remove extraneous HEAD elements. |
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if ($headCount > 1) { |
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$logger->debug('Removing ' . $child . '. Only one "head" element allowed.'); |
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$this->removeChild($child); |
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continue; |
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} |
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} elseif ($child instanceof Body) { |
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++$bodyCount; |
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// Remove extraneous BODY elements. |
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if ($bodyCount > 1) { |
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$logger->debug('Removing ' . $child . '. Only one "body" element allowed.'); |
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$this->removeChild($child); |
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continue; |
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} |
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} else { |
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$logger->debug('Removing ' . $child . '. Only "head" or "body" elements are allowed as "html" element children.'); |
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$this->removeChild($child); |
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} |
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} |
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} |
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protected function removeInvalidSelf(LoggerInterface $logger) : bool |
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{ |
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// HTML element must not have parent elements. |
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if ($this->getParent() !== null) { |
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$logger->debug('Removing ' . $this . '. Must not have a parent element.'); |
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return true; |
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} |
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return false; |
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} |
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} |
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