* {bodytext} *

* *

* Seite *

* * *

* {page.number} *

* * *

* * * * {page.number} * * * * * {page.number} * * * *

* * *

* * */ class PaginateBodytextViewHelper extends AbstractViewHelper { /** * @var bool */ protected $escapeOutput = false; /** * Initialize arguments */ public function initializeArguments() { parent::initializeArguments(); $this->registerArgument('object', News::class, 'news item', true); $this->registerArgument('as', 'string', 'as', true); $this->registerArgument('currentPage', 'int', 'current page', true); $this->registerArgument('token', 'string', 'token', '###more###'); } /** * Render everything * * @return string */ public function render(): string { $as = $this->arguments['as']; $currentPage = $this->arguments['currentPage']; $parts = GeneralUtility::trimExplode($this->arguments['token'], $this->arguments['object']->getBodytext(), true); $numberOfPages = count($parts); if ($numberOfPages === 1) { $result = $parts[0]; } else { $currentPage = (int)$currentPage; if ($currentPage < 1) { $currentPage = 1; } elseif ($currentPage > $numberOfPages) { $currentPage = $numberOfPages; } $tagsToOpen = []; $tagsToClose = []; for ($j = 0; $j < $currentPage; $j++) { $chunk = $parts[$j]; while (($chunk = mb_strstr($chunk, '<'))) { $tag = $this->extractTag($chunk); $tagStrLen = mb_strlen($tag); if ($this->isOpeningTag($tag)) { if ($j < $currentPage - 1) { $tagsToOpen[] = $tag; } $tagsToClose[] = $tag; } elseif ($this->isClosingTag($tag)) { if ($j < $currentPage - 1) { array_pop($tagsToOpen); } elseif (mb_strpos($parts[$j], $chunk) === 0) { $parts[$j] = mb_substr($parts[$j], $tagStrLen); array_pop($tagsToOpen); } array_pop($tagsToClose); } $chunk = mb_substr($chunk, $tagStrLen); } } $result = implode('', $tagsToOpen) . $parts[$currentPage - 1]; while ($tag = array_pop($tagsToClose)) { $result .= $this->getClosingTagByOpeningTag($tag); } } $pages = []; for ($i = 1; $i <= $numberOfPages; $i++) { $pages[] = ['number' => $i, 'isCurrent' => ($i === $currentPage)]; } $pagination = [ 'pages' => $pages, 'numberOfPages' => $numberOfPages, 'current' => $currentPage ]; if ($currentPage < $numberOfPages) { $pagination['nextPage'] = $currentPage + 1; } if ($currentPage > 1) { $pagination['previousPage'] = $currentPage - 1; } $this->templateVariableContainer->add($as, $result); $this->templateVariableContainer->add('pagination', $pagination); return $this->renderChildren(); } /** * Extracts the first html tag for a given html string * * @param string $html * @return string */ protected function extractTag($html): string { $tag = ''; $length = mb_strlen($html); for ($i = 0; $i < $length; $i++) { $char = mb_substr($html, $i, 1); $tag .= $char; if ($char === '>') { break; } } return $tag; } /** * Checks whether a given tag is self closing * * @param string $tag * @return bool */ protected function isSelfClosingTag($tag): bool { return mb_substr($tag, -2) === '/>'; } /** * Checks whether a given tag is closing tag * * @param string $tag * @return bool */ protected function isClosingTag($tag): bool { return mb_substr($tag, 0, 2) === 'isSelfClosingTag($tag) || $this->isClosingTag($tag)); } /** * Gets a closing tag from a given opening tag * * @param string $openingTag * @return string */ protected function getClosingTagByOpeningTag($openingTag): string { if (!$tag = mb_strstr(mb_substr($openingTag, 1), ' ', true)) { $tag = mb_strstr(mb_substr($openingTag, 1), '>', true); } return ''; } }