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<?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;

	}

}