mambax7/extgallery

<?php

namespace XoopsModules\Extgallery;

use XoopsModules\Extgallery;
use XoopsModules\Extgallery\Common;

//use XoopsModules\Extgallery\Constants;

/**
 * Class Utility
 */
class Utility extends Common\SysUtility
{
    //--------------- Custom module methods -----------------------------
    /**
     * @param $option
     * @return bool|mixed
     */
    public static function getModuleOption($option)
    {
        global $xoopsModule;
        /** @var \XoopsModules\Extgallery\Helper $helper */
        $helper = \XoopsModules\Extgallery\Helper::getInstance();
        static $tbloptions = [];
        if (\is_array($tbloptions) && \array_key_exists($option, $tbloptions)) {
            return $tbloptions[$option];
        }

        $retval = false;
        if (isset($xoopsModuleConfig)
            && (\is_object($xoopsModule) && 'extgallery' === $xoopsModule->getVar('dirname')
                && $xoopsModule->getVar('isactive'))) {
            if (isset($xoopsModuleConfig[$option])) {
                $retval = $xoopsModuleConfig[$option];
            }
        } else {
            /** @var \XoopsModuleHandler $moduleHandler */
            $moduleHandler = \xoops_getHandler('module');
            $module        = $moduleHandler->getByDirname('extgallery');

            /** @var \XoopsModuleHandler $moduleHandler */
            $configHandler = \xoops_getHandler('config');
            if ($module) {
                $configurator = $configHandler->getConfigsByCat(0, $module->getVar('mid'));
                if (isset($configurator[$option])) {
                    $retval = $configurator[$option];
                }
            }
        }
        $tbloptions[$option] = $retval;

        return $retval;
    }

    /**
     * @param $caption
     * @param $name
     * @param $value
     * @param $rows
     * @param $cols
     * @param $width
     * @param $height
     * @param $supplemental
     *
     * @return bool|\XoopsFormEditor
     */
    public static function getWysiwygForm($caption, $name, $value, $rows, $cols, $width, $height, $supplemental)
    {
        $editor_option            = mb_strtolower(static::getModuleOption('form_options'));
        $editor                   = false;
        $editor_configs           = [];
        $editor_configs['name']   = $name;
        $editor_configs['value']  = $value;
        $editor_configs['rows']   = $rows;
        $editor_configs['cols']   = $cols;
        $editor_configs['width']  = $width;
        $editor_configs['height'] = $height;
        $editor_configs['editor'] = $editor_option;

        $editor = new \XoopsFormEditor($caption, $name, $editor_configs);

        return $editor;
    }

    /**
     * truncateHtml can truncate a string up to a number of characters while preserving whole words and HTML tags
     * www.gsdesign.ro/blog/cut-html-string-without-breaking-the-tags
     * www.cakephp.org
     *
     * @param string $text         String to truncate.
     * @param int    $length       Length of returned string, including ellipsis.
     * @param string $ending       Ending to be appended to the trimmed string.
     * @param bool   $exact        If false, $text will not be cut mid-word
     * @param bool   $considerHtml If true, HTML tags would be handled correctly
     *
     * @return string Trimmed string.
     */
    public static function truncateHtml($text, $length = 100, $ending = '...', $exact = false, $considerHtml = true)
    {
        $open_tags = [];
        if ($considerHtml) {
            // if the plain text is shorter than the maximum length, return the whole text
            if (mb_strlen(\preg_replace('/<.*?' . '>/', '', $text)) <= $length) {
                return $text;
            }
            // splits all html-tags to scanable lines
            \preg_match_all('/(<.+?' . '>)?([^<>]*)/s', $text, $lines, \PREG_SET_ORDER);
            $total_length = mb_strlen($ending);
            $truncate     = '';
            foreach ($lines as $line_matchings) {
                // if there is any html-tag in this line, handle it and add it (uncounted) to the output
                if (!empty($line_matchings[1])) {
                    // if it's an "empty element" with or without xhtml-conform closing slash
                    if (\preg_match('/^<(\s*.+?\/\s*|\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\s.+?)?)>$/is', $line_matchings[1])) {
                        // do nothing
                        // if tag is a closing tag
                    } elseif (\preg_match('/^<\s*\/(\S+?)\s*>$/s', $line_matchings[1], $tag_matchings)) {
                        // delete tag from $open_tags list
                        $pos = \array_search($tag_matchings[1], $open_tags, true);
                        if (false !== $pos) {
                            unset($open_tags[$pos]);
                        }
                        // if tag is an opening tag
                    } elseif (\preg_match('/^<\s*([^\s>!]+).*?' . '>$/s', $line_matchings[1], $tag_matchings)) {
                        // add tag to the beginning of $open_tags list
                        \array_unshift($open_tags, mb_strtolower($tag_matchings[1]));
                    }
                    // add html-tag to $truncate'd text
                    $truncate .= $line_matchings[1];
                }
                // calculate the length of the plain text part of the line; handle entities as one character
                $content_length = mb_strlen(\preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', ' ', $line_matchings[2]));
                if ($total_length + $content_length > $length) {
                    // the number of characters which are left
                    $left            = $length - $total_length;
                    $entities_length = 0;
                    // search for html entities
                    if (\preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', $line_matchings[2], $entities, \PREG_OFFSET_CAPTURE)) {
                        // calculate the real length of all entities in the legal range
                        foreach ($entities[0] as $entity) {
                            if ($left >= $entity[1] + 1 - $entities_length) {
                                $left--;
                                $entities_length += mb_strlen($entity[0]);
                            } else {
                                // no more characters left
                                break;
                            }
                        }
                    }
                    $truncate .= mb_substr($line_matchings[2], 0, $left + $entities_length);
                    // maximum lenght is reached, so get off the loop
                    break;
                }
                $truncate     .= $line_matchings[2];
                $total_length += $content_length;

                // if the maximum length is reached, get off the loop
                if ($total_length >= $length) {
                    break;
                }
            }
        } else {
            if (mb_strlen($text) <= $length) {
                return $text;
            }
            $truncate = mb_substr($text, 0, $length - mb_strlen($ending));
        }
        // if the words shouldn't be cut in the middle...
        if (!$exact) {
            // ...search the last occurance of a space...
            $spacepos = mb_strrpos($truncate, ' ');
            if (isset($spacepos)) {
                // ...and cut the text in this position
                $truncate = mb_substr($truncate, 0, $spacepos);
            }
        }
        // add the defined ending to the text
        $truncate .= $ending;
        if ($considerHtml) {
            // close all unclosed html-tags
            foreach ($open_tags as $tag) {
                $truncate .= '</' . $tag . '>';
            }
        }

        return $truncate;
    }
}