text: <?php
  /**
   * CodeIgniter
   *
   * An open source application development framework for PHP
   *
   * This content is released under the MIT License (MIT)
   *
   * Copyright (c) 2014 - 2019, British Columbia Institute of Technology
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   *
   * @package	CodeIgniter
   * @author	EllisLab Dev Team
   * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
   * @copyright	Copyright (c) 2014 - 2019, British Columbia Institute of Technology (http://bcit.ca/)
   * @license	http://opensource.org/licenses/MIT	MIT License
   * @link	https://codeigniter.com
   * @since	Version 1.0.0
   * @filesource
   */
  defined('BASEPATH') OR exit('No direct script access allowed');
  
  /**
   * CodeIgniter Smiley Helpers
   *
   * @package		CodeIgniter
   * @subpackage	Helpers
   * @category	Helpers
   * @author		EllisLab Dev Team
   * @link		https://codeigniter.com/user_guide/helpers/smiley_helper.html
   * @deprecated	3.0.0	This helper is too specific for CI.
   */
  
  // ------------------------------------------------------------------------
  
  if ( ! function_exists('smiley_js'))
  {
  	/**
  	 * Smiley Javascript
  	 *
  	 * Returns the javascript required for the smiley insertion.  Optionally takes
  	 * an array of aliases to loosely couple the smiley array to the view.
  	 *
  	 * @param	mixed	alias name or array of alias->field_id pairs
  	 * @param	string	field_id if alias name was passed in
  	 * @param	bool
  	 * @return	array
  	 */
  	function smiley_js($alias = '', $field_id = '', $inline = TRUE)
  	{
  		static $do_setup = TRUE;
  		$r = '';
  
  		if ($alias !== '' && ! is_array($alias))
  		{
  			$alias = array($alias => $field_id);
  		}
  
  		if ($do_setup === TRUE)
  		{
  			$do_setup = FALSE;
  			$m = array();
  
  			if (is_array($alias))
  			{
  				foreach ($alias as $name => $id)
  				{
  					$m[] = '"'.$name.'" : "'.$id.'"';
  				}
  			}
  
  			$m = '{'.implode(',', $m).'}';
  
  			$r .= <<<EOF
  			var smiley_map = {$m};
  
  			function insert_smiley(smiley, field_id) {
  				var el = document.getElementById(field_id), newStart;
  
  				if ( ! el && smiley_map[field_id]) {
  					el = document.getElementById(smiley_map[field_id]);
  
  					if ( ! el)
  						return false;
  				}
  
  				el.focus();
  				smiley = " " + smiley;
  
  				if ('selectionStart' in el) {
  					newStart = el.selectionStart + smiley.length;
  
  					el.value = el.value.substr(0, el.selectionStart) +
  									smiley +
  									el.value.substr(el.selectionEnd, el.value.length);
  					el.setSelectionRange(newStart, newStart);
  				}
  				else if (document.selection) {
  					document.selection.createRange().text = smiley;
  				}
  			}
  EOF;
  		}
  		elseif (is_array($alias))
  		{
  			foreach ($alias as $name => $id)
  			{
  				$r .= 'smiley_map["'.$name.'"] = "'.$id."\";\n";
  			}
  		}
  
  		return ($inline)
  			? '<script type="text/javascript" charset="utf-8">/*<![CDATA[ */'.$r.'// ]]></script>'
  			: $r;
  	}
  }
  
  // ------------------------------------------------------------------------
  
  if ( ! function_exists('get_clickable_smileys'))
  {
  	/**
  	 * Get Clickable Smileys
  	 *
  	 * Returns an array of image tag links that can be clicked to be inserted
  	 * into a form field.
  	 *
  	 * @param	string	the URL to the folder containing the smiley images
  	 * @param	array
  	 * @return	array
  	 */
  	function get_clickable_smileys($image_url, $alias = '')
  	{
  		// For backward compatibility with js_insert_smiley
  		if (is_array($alias))
  		{
  			$smileys = $alias;
  		}
  		elseif (FALSE === ($smileys = _get_smiley_array()))
  		{
  			return FALSE;
  		}
  
  		// Add a trailing slash to the file path if needed
  		$image_url = rtrim($image_url, '/').'/';
  
  		$used = array();
  		foreach ($smileys as $key => $val)
  		{
  			// Keep duplicates from being used, which can happen if the
  			// mapping array contains multiple identical replacements. For example:
  			// :-) and :) might be replaced with the same image so both smileys
  			// will be in the array.
  			if (isset($used[$smileys[$key][0]]))
  			{
  				continue;
  			}
  
  			$link[] = '<a href="javascript:void(0);" onclick="insert_smiley(\''.$key.'\', \''.$alias.'\')"><img src="'.$image_url.$smileys[$key][0].'" alt="'.$smileys[$key][3].'" style="width: '.$smileys[$key][1].'; height: '.$smileys[$key][2].'; border: 0;" /></a>';
  			$used[$smileys[$key][0]] = TRUE;
  		}
  
  		return $link;
  	}
  }
  
  // ------------------------------------------------------------------------
  
  if ( ! function_exists('parse_smileys'))
  {
  	/**
  	 * Parse Smileys
  	 *
  	 * Takes a string as input and swaps any contained smileys for the actual image
  	 *
  	 * @param	string	the text to be parsed
  	 * @param	string	the URL to the folder containing the smiley images
  	 * @param	array
  	 * @return	string
  	 */
  	function parse_smileys($str = '', $image_url = '', $smileys = NULL)
  	{
  		if ($image_url === '' OR ( ! is_array($smileys) && FALSE === ($smileys = _get_smiley_array())))
  		{
  			return $str;
  		}
  
  		// Add a trailing slash to the file path if needed
  		$image_url = rtrim($image_url, '/').'/';
  
  		foreach ($smileys as $key => $val)
  		{
  			$str = str_replace($key, '<img src="'.$image_url.$smileys[$key][0].'" alt="'.$smileys[$key][3].'" style="width: '.$smileys[$key][1].'; height: '.$smileys[$key][2].'; border: 0;" />', $str);
  		}
  
  		return $str;
  	}
  }
  
  // ------------------------------------------------------------------------
  
  if ( ! function_exists('_get_smiley_array'))
  {
  	/**
  	 * Get Smiley Array
  	 *
  	 * Fetches the config/smiley.php file
  	 *
  	 * @return	mixed
  	 */
  	function _get_smiley_array()
  	{
  		static $_smileys;
  
  		if ( ! is_array($_smileys))
  		{
  			if (file_exists(APPPATH.'config/smileys.php'))
  			{
  				include(APPPATH.'config/smileys.php');
  			}
  
  			if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/smileys.php'))
  			{
  				include(APPPATH.'config/'.ENVIRONMENT.'/smileys.php');
  			}
  
  			if (empty($smileys) OR ! is_array($smileys))
  			{
  				$_smileys = array();
  				return FALSE;
  			}
  
  			$_smileys = $smileys;
  		}
  
  		return $_smileys;
  	}
  }
  