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<?php
/*
* 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\Backend\LinkHandler;
use Psr\Http\Message\ServerRequestInterface;
use TYPO3\CMS\Backend\Tree\View\LinkParameterProviderInterface;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Database\Connection;
use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;
use TYPO3\CMS\Core\Database\Query\Restriction\WorkspaceRestriction;
use TYPO3\CMS\Core\Domain\Repository\PageRepository;
use TYPO3\CMS\Core\Imaging\Icon;
use TYPO3\CMS\Core\LinkHandling\LinkService;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\MathUtility;
/**
* Link to a page record.
*
* @internal This class is a specific LinkHandler implementation and is not part of the TYPO3's Core API.
*/
class PageLinkHandler extends AbstractLinkHandler implements LinkHandlerInterface, LinkParameterProviderInterface
{
/**
* @var int
*/
protected $expandPage = 0;
/**
* Parts of the current link
*
* @var array
*/
protected $linkParts = [];
/**
* Checks if this is the handler for the given link
*
* The handler may store this information locally for later usage.
*
* @param array $linkParts Link parts as returned from TypoLinkCodecService
*
* @return bool
*/
public function canHandleLink(array $linkParts)
{
if (empty($linkParts['url'] ?? '')) {
return false;
}
$data = $linkParts['url'];
// Check if the page still exists
if ((int)($data['pageuid'] ?? 0) > 0) {
$pageRow = BackendUtility::getRecordWSOL('pages', $data['pageuid']);
if (!$pageRow) {
return false;
}
} elseif ($data['pageuid'] ?? '' !== 'current') {
return false;
}
$this->linkParts = $linkParts;
return true;
}
/**
* Format the current link for HTML output
*
* @return string
*/
public function formatCurrentUrl()
{
$lang = $this->getLanguageService();
$titleLen = (int)$this->getBackendUser()->uc['titleLen'];
$id = (int)$this->linkParts['url']['pageuid'];
$pageTitle = BackendUtility::getRecordWSOL('pages', $id, 'title')['title'] ?? '';
return $lang->sL('LLL:EXT:backend/Resources/Private/Language/locallang_browse_links.xlf:page')
. ($pageTitle ? ' \'' . GeneralUtility::fixed_lgd_cs($pageTitle, $titleLen) . '\'' : '')
. ' (ID: ' . $id . (!empty($this->linkParts['url']['fragment']) ? ', #' . $this->linkParts['url']['fragment'] : '') . ')';
}
/**
* Render the link handler
*/
public function render(ServerRequestInterface $request): string
{
$this->pageRenderer->loadJavaScriptModule('@typo3/backend/page-link-handler.js');
$this->pageRenderer->loadJavaScriptModule('@typo3/backend/viewport/resizable-navigation.js');
$this->pageRenderer->loadJavaScriptModule('@typo3/backend/tree/page-browser.js');
$this->getBackendUser()->initializeWebmountsForElementBrowser();
$this->expandPage = isset($request->getQueryParams()['expandPage']) ? (int)$request->getQueryParams()['expandPage'] : 0;
$this->view->assign('initialNavigationWidth', $this->getBackendUser()->uc['selector']['navigation']['width'] ?? 250);
$this->view->assign('treeActions', ['link']);
$this->getRecordsOnExpandedPage($this->expandPage);
return $this->view->render('LinkBrowser/Page');
}
/**
* This adds all content elements on a page to the view and lets you create a link to the element.
*
* @param int $pageId Page uid to expand
*/
protected function getRecordsOnExpandedPage($pageId)
{
// If there is an anchor value (content element reference) in the element reference, then force an ID to expand:
if (!$pageId && isset($this->linkParts['url']['fragment'])) {
// Set to the current link page id.
$pageId = $this->linkParts['url']['pageuid'];
}
$linkService = GeneralUtility::makeInstance(LinkService::class);
$this->view->assign('expandedPage', $pageId ?: $this->linkParts['url']['pageuid'] ?? 0);
// Draw the record list IF there is a page id to expand:
if ($pageId && MathUtility::canBeInterpretedAsInteger($pageId) && $this->getBackendUser()->isInWebMount($pageId)) {
$pageId = (int)$pageId;
$activePageRecord = BackendUtility::getRecordWSOL('pages', $pageId);
$this->view->assign('expandActivePage', true);
// Create header for listing, showing the page title/icon
$this->view->assign('activePage', $activePageRecord);
$this->view->assign('activePageTitle', BackendUtility::getRecordTitle('pages', $activePageRecord, true));
$this->view->assign('activePageIcon', $this->iconFactory->getIconForRecord('pages', $activePageRecord, Icon::SIZE_SMALL)->render());
if ($this->isPageLinkable($activePageRecord)) {
$this->view->assign('activePageLink', $linkService->asString(['type' => LinkService::TYPE_PAGE, 'pageuid' => $pageId]));
}
// Look up tt_content elements from the expanded page
$queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
->getQueryBuilderForTable('tt_content');
$queryBuilder->getRestrictions()
->removeAll()
->add(GeneralUtility::makeInstance(DeletedRestriction::class))
->add(GeneralUtility::makeInstance(WorkspaceRestriction::class, $this->getBackendUser()->workspace));
$contentElements = $queryBuilder
->select('*')
->from('tt_content')
->where(
$queryBuilder->expr()->and(
$queryBuilder->expr()->eq(
'pid',
$queryBuilder->createNamedParameter($pageId, Connection::PARAM_INT)
),
$queryBuilder->expr()->in(
'sys_language_uid',
$queryBuilder->createNamedParameter([$activePageRecord['sys_language_uid'], -1], Connection::PARAM_INT_ARRAY)
)
)
)
->orderBy('colPos')
->addOrderBy('sorting')
->executeQuery()
->fetchAllAssociative();
// Enrich list of records
foreach ($contentElements as &$contentElement) {
BackendUtility::workspaceOL('tt_content', $contentElement);
$contentElement['url'] = $linkService->asString(['type' => LinkService::TYPE_PAGE, 'pageuid' => $pageId, 'fragment' => $contentElement['uid']]);
$contentElement['isSelected'] = (int)($this->linkParts['url']['fragment'] ?? 0) === (int)$contentElement['uid'];
$contentElement['icon'] = $this->iconFactory->getIconForRecord('tt_content', $contentElement, Icon::SIZE_SMALL)->render();
$contentElement['title'] = BackendUtility::getRecordTitle('tt_content', $contentElement, true);
}
$this->view->assign('contentElements', $contentElements);
}
}
/**
* @return string[] Array of body-tag attributes
*/
public function getBodyTagAttributes()
{
if (count($this->linkParts) === 0 || empty($this->linkParts['url']['pageuid'])) {
return [];
}
return [
'data-linkbrowser-current-link' => GeneralUtility::makeInstance(LinkService::class)->asString([
'type' => LinkService::TYPE_PAGE,
'pageuid' => (int)$this->linkParts['url']['pageuid'],
'fragment' => $this->linkParts['url']['fragment'] ?? '',
]),
];
}
/**
* @param array $values Array of values to include into the parameters or which might influence the parameters
*
* @return string[] Array of parameters which have to be added to URLs
*/
public function getUrlParameters(array $values)
{
$parameters = [
'expandPage' => isset($values['pid']) ? (int)$values['pid'] : $this->expandPage,
];
return array_merge($this->linkBrowser->getUrlParameters($values), $parameters);
}
/**
* @param array $values Values to be checked
*
* @return bool Returns TRUE if the given values match the currently selected item
*/
public function isCurrentlySelectedItem(array $values)
{
return !empty($this->linkParts) && (int)$this->linkParts['url']['pageuid'] === (int)$values['pid'];
}
/**
* Returns the URL of the current script
*
* @return string
*/
public function getScriptUrl()
{
return $this->linkBrowser->getScriptUrl();
}
/**
* @param string[] $fieldDefinitions Array of link attribute field definitions
* @return string[]
*/
public function modifyLinkAttributes(array $fieldDefinitions)
{
$configuration = $this->linkBrowser->getConfiguration();
// Depending on where the configuration is set it can be 'pageIdSelector' (CKEditor yaml) or 'pageIdSelector.' (TSconfig)
if (!empty($configuration['pageIdSelector']['enabled']) || !empty($configuration['pageIdSelector.']['enabled'])) {
$this->linkAttributes[] = 'pageIdSelector';
$fieldDefinitions['pageIdSelector'] = '
<form><div class="row mt-3">
<label class="col-3 col-form-label">
' . htmlspecialchars($this->getLanguageService()->sL('LLL:EXT:backend/Resources/Private/Language/locallang_browse_links.xlf:page_id')) . '
</label>
<div class="col-2">
<input type="number" size="6" name="luid" id="luid" class="form-control" />
</div>
<div class="col-7">
<input class="btn btn-default t3js-pageLink" type="submit" value="' . htmlspecialchars($this->getLanguageService()->sL('LLL:EXT:backend/Resources/Private/Language/locallang_browse_links.xlf:setLink')) . '" />
</div>
</div></form>';
}
return $fieldDefinitions;
}
protected function isPageLinkable(array $page): bool
{
return !in_array((int)$page['doktype'], [PageRepository::DOKTYPE_RECYCLER, PageRepository::DOKTYPE_SYSFOLDER, PageRepository::DOKTYPE_SPACER]);
}
}