<?php
/**
 * @package     Joomla.Plugin
 * @subpackage  Editors-xtd.readmore
 *
 * @copyright   Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

/**
 * Editor Readmore buton
 *
 * @package     Joomla.Plugin
 * @subpackage  Editors-xtd.readmore
 * @since       1.5
 */
class plgButtonReadmore extends JPlugin
{
	/**
	 * Constructor
	 *
	 * @access      protected
	 * @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);
		$this->loadLanguage();
	}

	/**
	 * readmore button
	 * @return array A two element array of (imageName, textToInsert)
	 */
	public function onDisplay($name)
	{
		$app = JFactory::getApplication();

		$doc      = JFactory::getDocument();
		$template = $app->getTemplate();

		// button is not active in specific content components

		$getContent = $this->_subject->getContent($name);
		$present = JText::_('PLG_READMORE_ALREADY_EXISTS', true);
		$js = "
			function insertReadmore(editor) {
				var content = $getContent
				if (content.match(/<hr\s+id=(\"|')system-readmore(\"|')\s*\/*>/i)) {
					alert('$present');
					return false;
				} else {
					jInsertEditorText('<hr id=\"system-readmore\" />', editor);
				}
			}
			";

		$doc->addScriptDeclaration($js);

		$button = new JObject;
		$button->modal = false;
		$button->onclick = 'insertReadmore(\''.$name.'\');return false;';
		$button->text = JText::_('PLG_READMORE_BUTTON_READMORE');
		$button->name = 'arrow-down';
		// TODO: The button writer needs to take into account the javascript directive
		//$button->link', 'javascript:void(0)');
		$button->link = '#';

		return $button;
	}
}