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   1  <?php
   2  /**
   3   * @version        $Id: readmore.php 10709 2008-08-21 09:58:52Z eddieajau $
   4   * @package        Joomla
   5   * @copyright    Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
   6   * @license        GNU/GPL, see LICENSE.php
   7   * Joomla! is free software. This version may have been modified pursuant
   8   * to the GNU General Public License, and as distributed it includes or
   9   * is derivative of works licensed under the GNU General Public License or
  10   * other free or open source software licenses.
  11   * See COPYRIGHT.php for copyright notices and details.
  12   */
  13  
  14  // no direct access
  15  defined( '_JEXEC' ) or die( 'Restricted access' );
  16  
  17  jimport( 'joomla.plugin.plugin' );
  18  
  19  /**
  20   * Editor Readmore buton
  21   *
  22   * @package Editors-xtd
  23   * @since 1.5
  24   */
  25  class plgButtonReadmore extends JPlugin
  26  {
  27      /**
  28       * Constructor
  29       *
  30       * For php4 compatability we must not use the __constructor as a constructor for plugins
  31       * because func_get_args ( void ) returns a copy of all passed arguments NOT references.
  32       * This causes problems with cross-referencing necessary for the observer design pattern.
  33       *
  34       * @param     object $subject The object to observe
  35       * @param     array  $config  An array that holds the plugin configuration
  36       * @since 1.5
  37       */
  38  	function plgButtonReadmore(& $subject, $config)
  39      {
  40          parent::__construct($subject, $config);
  41      }
  42  
  43      /**
  44       * readmore button
  45       * @return array A two element array of ( imageName, textToInsert )
  46       */
  47  	function onDisplay($name)
  48      {
  49          global $mainframe;
  50  
  51          $doc         =& JFactory::getDocument();
  52          $template     = $mainframe->getTemplate();
  53  
  54          // button is not active in specific content components
  55  
  56          $getContent = $this->_subject->getContent($name);
  57          $present = JText::_('ALREADY EXISTS', true) ;
  58          $js = "
  59  			function insertReadmore(editor) {
  60                  var content = $getContent
  61                  if (content.match(/<hr\s+id=(\"|')system-readmore(\"|')\s*\/*>/i)) {
  62                      alert('$present');
  63                      return false;
  64                  } else {
  65                      jInsertEditorText('<hr id=\"system-readmore\" />', editor);
  66                  }
  67              }
  68              ";
  69  
  70          $doc->addScriptDeclaration($js);
  71  
  72          $button = new JObject();
  73          $button->set('modal', false);
  74          $button->set('onclick', 'insertReadmore(\''.$name.'\');return false;');
  75          $button->set('text', JText::_('Readmore'));
  76          $button->set('name', 'readmore');
  77          // TODO: The button writer needs to take into account the javascript directive
  78          //$button->set('link', 'javascript:void(0)');
  79          $button->set('link', '#');
  80  
  81          return $button;
  82      }
  83  }