Viewing file:  smiley_helper.php (6.13 KB) -rw-r--r--
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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 4.3.2 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2010, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* CodeIgniter Smiley Helpers
*
* @package CodeIgniter
* @subpackage Helpers
* @category Helpers
* @author ExpressionEngine Dev Team
* @link http://codeigniter.com/user_guide/helpers/smiley_helper.html
*/
// ------------------------------------------------------------------------
/**
* 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.
*
* @access public
* @param mixed alias name or array of alias->field_id pairs
* @param string field_id if alias name was passed in
* @return array
*/
if ( ! function_exists('smiley_js'))
{
function smiley_js($alias = '', $field_id = '')
{
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 = text;
}
}
EOF;
}
else
{
if (is_array($alias))
{
foreach($alias as $name => $id)
{
$r .= 'smiley_map["'.$name.'"] = "'.$id.'";'."\n";
}
}
}
return '<script type="text/javascript" charset="utf-8">'.$r.'</script>';
}
}
// ------------------------------------------------------------------------
/**
* Get Clickable Smileys
*
* Returns an array of image tag links that can be clicked to be inserted
* into a form field.
*
* @access public
* @param string the URL to the folder containing the smiley images
* @return array
*/
if ( ! function_exists('get_clickable_smileys'))
{
function get_clickable_smileys($image_url, $alias = '', $smileys = NULL)
{
// For backward compatibility with js_insert_smiley
if (is_array($alias))
{
$smileys = $alias;
}
if ( ! is_array($smileys))
{
if (FALSE === ($smileys = _get_smiley_array()))
{
return $smileys;
}
}
// 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]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" /></a>";
$used[$smileys[$key][0]] = TRUE;
}
return $link;
}
}
// ------------------------------------------------------------------------
/**
* Parse Smileys
*
* Takes a string as input and swaps any contained smileys for the actual image
*
* @access public
* @param string the text to be parsed
* @param string the URL to the folder containing the smiley images
* @return string
*/
if ( ! function_exists('parse_smileys'))
{
function parse_smileys($str = '', $image_url = '', $smileys = NULL)
{
if ($image_url == '')
{
return $str;
}
if ( ! is_array($smileys))
{
if (FALSE === ($smileys = _get_smiley_array()))
{
return $str;
}
}
// Add a trailing slash to the file path if needed
$image_url = preg_replace("/(.+?)\/*$/", "\\1/", $image_url);
foreach ($smileys as $key => $val)
{
$str = str_replace($key, "<img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" />", $str);
}
return $str;
}
}
// ------------------------------------------------------------------------
/**
* Get Smiley Array
*
* Fetches the config/smiley.php file
*
* @access private
* @return mixed
*/
if ( ! function_exists('_get_smiley_array'))
{
function _get_smiley_array()
{
if ( ! file_exists(APPPATH.'config/smileys'.EXT))
{
return FALSE;
}
include(APPPATH.'config/smileys'.EXT);
if ( ! isset($smileys) OR ! is_array($smileys))
{
return FALSE;
}
return $smileys;
}
}
// ------------------------------------------------------------------------
/**
* JS Insert Smiley
*
* Generates the javascript function needed to insert smileys into a form field
*
* DEPRECATED as of version 1.7.2, use smiley_js instead
*
* @access public
* @param string form name
* @param string field name
* @return string
*/
if ( ! function_exists('js_insert_smiley'))
{
function js_insert_smiley($form_name = '', $form_field = '')
{
return <<<EOF
<script type="text/javascript">
function insert_smiley(smiley)
{
document.{$form_name}.{$form_field}.value += " " + smiley;
}
</script>
EOF;
}
}
/* End of file smiley_helper.php */
/* Location: ./system/helpers/smiley_helper.php */
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