Помощь с плагином автодобавления Подробнее - Joomla 6, Joomla 5 и Joomla 4: Общие вопросы

<?php
 
defined('_JEXEC') or die;

use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\Component\Content\Site\Helper\RouteHelper;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Uri\Uri;

class PlgContentAmsupermore extends CMSPlugin
{
    // Enable automatic language loading for the plugin
    protected $autoloadLanguage = true;

    /**
     * Event triggered when Joomla prepares content for display.
     *
     * @param string $context The context of the content being passed to the plugin.
     * @param object $article The article object.
     * @param object $params  The article parameters.
     * @param int    $page    The page number (for multi-page articles).
     */
    public function onContentPrepare($context, &$article, &$params, $page = 0)
    {
        // Check if the "Add Read More" feature is enabled
        $addReadMore = $this->params->get('add', 0); // Default: on
        if (!$addReadMore || $context !== 'com_content.category') {
            return; // Exit if the feature is disabled or the context is not a category blog layout
        }

        // Load the CSS file
        Factory::getDocument()->addStyleSheet(Uri::root(true). 'plugins/content/amsupermore/assets/css/amsupermore.css');

        // Get plugin parameters
        $truncate = $this->params->get('truncate', 'word'); // Default: Word
        $limit = (int) $this->params->get('limit', 100); // Default: 100
        $readmoreStyle = $this->params->get('style', 'link'); // Default: Link
        $readmoreLabel = $this->params->get('label', 'Read More ...'); // Default: 'Read More ...'
		$format = $this->params->get('format', 0);
		$btnstyle = $this->params->get('btnstyle', ' btn-secondary');

        // Remove existing readmore tags
        $article->text = preg_replace('/<hr\s+id="system-readmore"\s*\/?>/i', '', $article->text);
		if ($format) {
		$article->text = strip_tags($article->text);
		}

        // Truncate the article content based on the specified limit
        if ($truncate === 'word') {
            $truncatedText = $this->truncateByWords($article->text, $limit);
        } else {
            $truncatedText = mb_substr($article->text, 0, $limit). '...';
        }

        // Add the new readmore tag only if truncation occurred
        if ($truncatedText !== $article->text) {

            // Generate the "Read More" link or button
            if ($readmoreStyle === 'button') {
                // Bootstrap button style
                $readMoreTag = '<a href="' . $this->getArticleLink($article). '" class="btn'.$btnstyle.'">'.htmlspecialchars($readmoreLabel).'</a>';
            } else {
                // Default link style
                $readMoreTag = '<a href="'.$this->getArticleLink($article).'">'.htmlspecialchars($readmoreLabel).'</a>';
            }

            // Suppress Joomla's default readmore generation
            $article->alternative_readmore = ''; // Disable Joomla's default "Read More" text
            $article->readmore = false; // Disable Joomla's default "Read More" behavior

            // Append the readmore tag after the truncated text, wrapped in a <div> for a new line
            $article->text = $truncatedText.'<div class="readmore">'.$readMoreTag.'</div>';
        }
    }

    /**
     * Truncate text by words.
     *
     * @param string $text The input text.
     * @param int $limit The word limit.
     * @return string The truncated text.
     */
    private function truncateByWords($text, $limit)
    {
        $words = preg_split('/\s+/', strip_tags($text), $limit + 1);
        if (count($words) > $limit) {
            array_pop($words); // Remove the last word to avoid cutting mid-sentence
            return implode(' ', $words). '...';
        }
        return $text;
    }

    /**
     * Truncate text by characters.
     *
     * @param string $text The input text.
     * @param int $limit The character limit.
     * @return string The truncated text.
     */
    private function truncateByCharacters($text, $limit)
    {
        $text = strip_tags($text); // Remove HTML tags
        if (strlen($text) > $limit) {
            $text = substr($text, 0, $limit);
            $text = rtrim($text, " \t\n\r.,!?"). '...'; // Trim cleanly and add ellipsis
        }
        return $text;
    }

    /**
     * Helper method to generate the article link.
     *
     * @param object $article The article object.
     * @return string The article link.
     */
    private function getArticleLink($article)
    {
        // Get the menu item ID for SEF URLs
        $menu = Factory::getApplication()->getMenu();
        $itemId = $menu->getActive()? $menu->getActive()->id : null;

        // Generate the article route using RouteHelper
        $link = Route::_(RouteHelper::getArticleRoute($article->slug, $article->catid, $itemId));

        return $link;
    }
}