9.5/_page_browsing_view_helper_8php_source.html

<?php

namespace ‪TYPO3\CMS\IndexedSearch\ViewHelpers;


/*

 * 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!

 */


use ‪TYPO3\CMS\Core\Utility\GeneralUtility;

use ‪TYPO3\CMS\Core\Utility\MathUtility;

use ‪TYPO3\CMS\Extbase\Utility\LocalizationUtility;

use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;

use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;

use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;


class ‪PageBrowsingViewHelper extends AbstractViewHelper

{

    use CompileWithRenderStatic;


    protected ‪$escapeOutput = false;


    protected static ‪$prefixId = 'tx_indexedsearch';


    public function ‪initializeArguments()

    {

        $this->registerArgument('maximumNumberOfResultPages', 'int', '', true);

        $this->registerArgument('numberOfResults', 'int', '', true);

        $this->registerArgument('resultsPerPage', 'int', '', true);

        $this->registerArgument('currentPage', 'int', '', false, 0);

        $this->registerArgument('freeIndexUid', 'int', '');

    }


    public static function ‪renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)

    {

        $maximumNumberOfResultPages = $arguments['maximumNumberOfResultPages'];

        $numberOfResults = $arguments['numberOfResults'];

        $resultsPerPage = $arguments['resultsPerPage'];

        $currentPage = $arguments['currentPage'];

        $freeIndexUid = $arguments['freeIndexUid'];


        if ($resultsPerPage <= 0) {

            $resultsPerPage = 10;

        }

        $pageCount = (int)ceil($numberOfResults / $resultsPerPage);

        // only show the result browser if more than one page is needed

        if ($pageCount === 1) {

            return '';

        }


        // Check if $currentPage is in range

        $currentPage = ‪MathUtility::forceIntegerInRange($currentPage, 0, $pageCount - 1);


        $content = '';

        // prev page

        // show on all pages after the 1st one

        if ($currentPage > 0) {

            $label = ‪LocalizationUtility::translate('displayResults.previous', 'IndexedSearch');

            $content .= '<li>' . ‪self::makecurrentPageSelector_link($label, $currentPage - 1, $freeIndexUid) . '</li>';

        }

        // Check if $maximumNumberOfResultPages is in range

        $maximumNumberOfResultPages = ‪MathUtility::forceIntegerInRange($maximumNumberOfResultPages, 1, $pageCount, 10);

        // Assume $currentPage is in the middle and calculate the index limits of the result page listing

        $minPage = $currentPage - (int)floor($maximumNumberOfResultPages / 2);

        $maxPage = $minPage + $maximumNumberOfResultPages - 1;

        // Check if the indexes are within the page limits

        if ($minPage < 0) {

            $maxPage -= $minPage;

            $minPage = 0;

        } elseif ($maxPage >= $pageCount) {

            $minPage -= $maxPage - $pageCount + 1;

            $maxPage = $pageCount - 1;

        }

        $pageLabel = ‪LocalizationUtility::translate('displayResults.page', 'IndexedSearch');

        for ($a = $minPage; $a <= $maxPage; $a++) {

            $label = trim($pageLabel . ' ' . ($a + 1));

            $label = ‪self::makecurrentPageSelector_link($label, $a, $freeIndexUid);

            if ($a === $currentPage) {

                $content .= '<li class="tx-indexedsearch-browselist-currentPage"><strong>' . $label . '</strong></li>';

            } else {

                $content .= '<li>' . $label . '</li>';

            }

        }

        // next link

        if ($currentPage < $pageCount - 1) {

            $label = ‪LocalizationUtility::translate('displayResults.next', 'IndexedSearch');

            $content .= '<li>' . ‪self::makecurrentPageSelector_link($label, $currentPage + 1, $freeIndexUid) . '</li>';

        }

        return '<ul class="tx-indexedsearch-browsebox">' . $content . '</ul>';

    }


    protected static function ‪makecurrentPageSelector_link($str, $p, $freeIndexUid)

    {

        $onclick = 'document.getElementById(' . GeneralUtility::quoteJSvalue(self::$prefixId . '_pointer') . ').value=' . GeneralUtility::quoteJSvalue($p) . ';';

        if ($freeIndexUid !== null) {

            $onclick .= 'document.getElementById(' . GeneralUtility::quoteJSvalue(self::$prefixId . '_freeIndexUid') . ').value=' . GeneralUtility::quoteJSvalue($freeIndexUid) . ';';

        }

        $onclick .= 'document.getElementById(' . GeneralUtility::quoteJSvalue(self::$prefixId) . ').submit();return false;';

        return '<a href="#" onclick="' . htmlspecialchars($onclick) . '">' . htmlspecialchars($str) . '</a>';

    }

}