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<?php

/**
 * @package     JCE
 * @subpackage  System.jce
 *
 * @copyright   Copyright (C) 2015 Ryan Demmer. All rights reserved.
 * @copyright   Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later
 */
defined('JPATH_BASE') or die;

/**
 * JCE
 *
 * @package     JCE
 * @subpackage  System.jce
 * @since       2.5.5
 */
class PlgSystemJce extends JPlugin {

    /**
     * Constructor
     *
     * @param   object  &$subject  The object to observe
     * @param   array   $config    An array that holds the plugin configuration
     *
     * @since   1.5
     */
    public function __construct(& $subject, $config) {
        parent::__construct($subject, $config);
    }

    protected function getLink($filter = 'images') {
        require_once(JPATH_ADMINISTRATOR . '/components/com_jce/helpers/browser.php');

        $link = WFBrowserHelper::getMediaFieldLink('', $filter);

        return $link;
    }

    /**
     * adds additional fields to the user editing form
     *
     * @param   JForm  $form  The form to be altered.
     * @param   mixed  $data  The associated data for the form.
     *
     * @return  boolean
     *
     * @since   1.6
     */
    public function onContentPrepareForm($form, $data) {
        $version = new JVersion;

        if (!$version->isCompatible('3.4')) {
            return true;
        }

        if (!($form instanceof JForm)) {
            $this->_subject->setError('JERROR_NOT_A_FORM');

            return false;
        }

        $params = JComponentHelper::getParams('com_jce');

        if ((bool) $params->get('replace_media_manager', 1) === false) {
          return;
        }

        // get form name.
        $name = $form->getName();

        $valid = array(
            'com_content.article',
            'com_categories.categorycom_content',
            'com_templates.style',
            'com_tags.tag',
            'com_banners.banner',
            'com_contact.contact',
            'com_newsfeeds.newsfeed'
        );

        // only allow some forms, see - https://github.com/joomla/joomla-cms/pull/8657
        if (!in_array($name, $valid)) {
            return true;
        }

        $config = JFactory::getConfig();
        $user = JFactory::getUser();

        if ($user->getParam('editor', $config->get('editor')) !== "jce") {
            return true;
        }

        if (!JPluginHelper::getPlugin('editors', 'jce')) {
            return true;
        }

        $hasMedia = false;
        $fields = $form->getFieldset();

        foreach ($fields as $field) {
            $type = $field->getAttribute('type');

            if (strtolower($type) === "media") {
                // get filter value for field, eg: images, media, files
                $filter = $field->getAttribute('filter', 'images');

                // get file browser link
                $link = $this->getLink($filter);

                // link not available for environment
                if (empty($link)) {
                  continue;
                }

                $name   = $field->getAttribute('name');
                $group  = (string) $field->group;
                $form->setFieldAttribute($name, 'link', $link, $group);
                $form->setFieldAttribute($name, 'class', 'input-large wf-media-input', $group);

                $hasMedia = true;
            }
        }

        if ($hasMedia) {
            // Include jQuery
            JHtml::_('jquery.framework');

            $document = JFactory::getDocument();
            $document->addScriptDeclaration('jQuery(document).ready(function($){$(".wf-media-input").removeAttr("readonly");});');
        }

        return true;
    }
}