144 lines
3.7 KiB
PHP
144 lines
3.7 KiB
PHP
<?php
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/**
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* @package Joomla.Site
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* @subpackage mod_random_image
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*
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* @copyright (C) 2006 Open Source Matters, Inc. <https://www.joomla.org>
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* @license GNU General Public License version 2 or later; see LICENSE.txt
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*/
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namespace Joomla\Module\RandomImage\Site\Helper;
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use Joomla\CMS\Uri\Uri;
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use Joomla\String\StringHelper;
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// phpcs:disable PSR1.Files.SideEffects
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\defined('_JEXEC') or die;
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// phpcs:enable PSR1.Files.SideEffects
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/**
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* Helper for mod_random_image
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*
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* @since 1.5
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*/
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class RandomImageHelper
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{
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/**
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* Retrieves a random image
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*
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* @param \Joomla\Registry\Registry &$params module parameters object
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* @param array $images list of images
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*
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* @return mixed
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*/
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public static function getRandomImage(&$params, $images)
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{
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$width = $params->get('width', 100);
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$height = $params->get('height', null);
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$i = \count($images);
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if ($i === 0) {
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return null;
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}
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$random = mt_rand(0, $i - 1);
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$image = $images[$random];
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$size = getimagesize(JPATH_BASE . '/' . $image->folder . '/' . $image->name);
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if ($size[0] < $width) {
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$width = $size[0];
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}
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$coeff = $size[0] / $size[1];
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if ($height === null) {
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$height = (int) ($width / $coeff);
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} else {
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$newheight = min($height, (int) ($width / $coeff));
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if ($newheight < $height) {
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$height = $newheight;
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} else {
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$width = $height * $coeff;
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}
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}
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$image->width = $width;
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$image->height = $height;
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$image->folder = str_replace('\\', '/', $image->folder);
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return $image;
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}
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/**
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* Retrieves images from a specific folder
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*
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* @param \Joomla\Registry\Registry &$params module params
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* @param string $folder folder to get the images from
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*
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* @return array
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*/
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public static function getImages(&$params, $folder)
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{
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$type = $params->get('type', 'jpg');
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$files = [];
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$images = [];
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$dir = JPATH_BASE . '/' . $folder;
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// Check if directory exists
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if (is_dir($dir)) {
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if ($handle = opendir($dir)) {
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while (false !== ($file = readdir($handle))) {
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if ($file !== '.' && $file !== '..' && $file !== 'CVS' && $file !== 'index.html') {
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$files[] = $file;
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}
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}
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}
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closedir($handle);
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$i = 0;
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foreach ($files as $img) {
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if (!is_dir($dir . '/' . $img) && preg_match('/' . $type . '/', $img)) {
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$images[$i] = new \stdClass();
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$images[$i]->name = $img;
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$images[$i]->folder = $folder;
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$i++;
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}
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}
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}
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return $images;
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}
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/**
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* Get sanitized folder
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*
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* @param \Joomla\Registry\Registry &$params module params objects
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*
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* @return mixed
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*/
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public static function getFolder(&$params)
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{
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$folder = $params->get('folder');
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$LiveSite = Uri::base();
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// If folder includes livesite info, remove
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if (StringHelper::strpos($folder, $LiveSite) === 0) {
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$folder = str_replace($LiveSite, '', $folder);
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}
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// If folder includes absolute path, remove
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if (StringHelper::strpos($folder, JPATH_SITE) === 0) {
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$folder = str_replace(JPATH_BASE, '', $folder);
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}
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return str_replace(['\\', '/'], DIRECTORY_SEPARATOR, $folder);
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}
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}
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