ckeditor_php5.php

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<?php
/*
* Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.html or http://ckeditor.com/license
*/

class CKEditor
{
     const version = '3.6.5';
     const timestamp = 'C9A85WF';

     public $basePath;
     public $config = array();
     public $initialized = false;
     public $returnOutput = false;
     public $textareaAttributes = array( "rows" => 8, "cols" => 60 );
     public $timestamp = "C9A85WF";
     private $events = array();
     private $globalEvents = array();

     function __construct($basePath = null) {
          if (!empty($basePath)) {
               $this->basePath = $basePath;
          }
     }

     public function editor($name, $value = "", $config = array(), $events = array())
     {
          $attr = "";
          foreach ($this->textareaAttributes as $key => $val) {
               $attr.= " " . $key . '="' . str_replace('"', '&quot;', $val) . '"';
          }
          $out = "<textarea name=\"" . $name . "\"" . $attr . ">" . htmlspecialchars($value) . "</textarea>\n";
          if (!$this->initialized) {
               $out .= $this->init();
          }

          $_config = $this->configSettings($config, $events);

          $js = $this->returnGlobalEvents();
          if (!empty($_config))
               $js .= "CKEDITOR.replace('".$name."', ".$this->jsEncode($_config).");";
          else
               $js .= "CKEDITOR.replace('".$name."');";

          $out .= $this->script($js);

          if (!$this->returnOutput) {
               print $out;
               $out = "";
          }

          return $out;
     }

     public function replace($id, $config = array(), $events = array())
     {
          $out = "";
          if (!$this->initialized) {
               $out .= $this->init();
          }

          $_config = $this->configSettings($config, $events);

          $js = $this->returnGlobalEvents();
          if (!empty($_config)) {
               $js .= "CKEDITOR.replace('".$id."', ".$this->jsEncode($_config).");";
          }
          else {
               $js .= "CKEDITOR.replace('".$id."');";
          }
          $out .= $this->script($js);

          if (!$this->returnOutput) {
               print $out;
               $out = "";
          }

          return $out;
     }

     public function replaceAll($className = null)
     {
          $out = "";
          if (!$this->initialized) {
               $out .= $this->init();
          }

          $_config = $this->configSettings();

          $js = $this->returnGlobalEvents();
          if (empty($_config)) {
               if (empty($className)) {
                    $js .= "CKEDITOR.replaceAll();";
               }
               else {
                    $js .= "CKEDITOR.replaceAll('".$className."');";
               }
          }
          else {
               $classDetection = "";
               $js .= "CKEDITOR.replaceAll( function(textarea, config) {\n";
               if (!empty($className)) {
                    $js .= "  var classRegex = new RegExp('(?:^| )' + '". $className ."' + '(?:$| )');\n";
                    $js .= "  if (!classRegex.test(textarea.className))\n";
                    $js .= "       return false;\n";
               }
               $js .= "  CKEDITOR.tools.extend(config, ". $this->jsEncode($_config) .", true);";
               $js .= "} );";

          }

          $out .= $this->script($js);

          if (!$this->returnOutput) {
               print $out;
               $out = "";
          }

          return $out;
     }

     public function addEventHandler($event, $javascriptCode)
     {
          if (!isset($this->events[$event])) {
               $this->events[$event] = array();
          }
          // Avoid duplicates.
          if (!in_array($javascriptCode, $this->events[$event])) {
               $this->events[$event][] = $javascriptCode;
          }
     }

     public function clearEventHandlers($event = null)
     {
          if (!empty($event)) {
               $this->events[$event] = array();
          }
          else {
               $this->events = array();
          }
     }

     public function addGlobalEventHandler($event, $javascriptCode)
     {
          if (!isset($this->globalEvents[$event])) {
               $this->globalEvents[$event] = array();
          }
          // Avoid duplicates.
          if (!in_array($javascriptCode, $this->globalEvents[$event])) {
               $this->globalEvents[$event][] = $javascriptCode;
          }
     }

     public function clearGlobalEventHandlers($event = null)
     {
          if (!empty($event)) {
               $this->globalEvents[$event] = array();
          }
          else {
               $this->globalEvents = array();
          }
     }

     private function script($js)
     {
          $out = "<script type=\"text/javascript\">";
          $out .= "//<![CDATA[\n";
          $out .= $js;
          $out .= "\n//]]>";
          $out .= "</script>\n";

          return $out;
     }

     private function configSettings($config = array(), $events = array())
     {
          $_config = $this->config;
          $_events = $this->events;

          if (is_array($config) && !empty($config)) {
               $_config = array_merge($_config, $config);
          }

          if (is_array($events) && !empty($events)) {
               foreach ($events as $eventName => $code) {
                    if (!isset($_events[$eventName])) {
                         $_events[$eventName] = array();
                    }
                    if (!in_array($code, $_events[$eventName])) {
                         $_events[$eventName][] = $code;
                    }
               }
          }

          if (!empty($_events)) {
               foreach($_events as $eventName => $handlers) {
                    if (empty($handlers)) {
                         continue;
                    }
                    else if (count($handlers) == 1) {
                         $_config['on'][$eventName] = '@@'.$handlers[0];
                    }
                    else {
                         $_config['on'][$eventName] = '@@function (ev){';
                         foreach ($handlers as $handler => $code) {
                              $_config['on'][$eventName] .= '('.$code.')(ev);';
                         }
                         $_config['on'][$eventName] .= '}';
                    }
               }
          }

          return $_config;
     }

     private function returnGlobalEvents()
     {
          static $returnedEvents;
          $out = "";

          if (!isset($returnedEvents)) {
               $returnedEvents = array();
          }

          if (!empty($this->globalEvents)) {
               foreach ($this->globalEvents as $eventName => $handlers) {
                    foreach ($handlers as $handler => $code) {
                         if (!isset($returnedEvents[$eventName])) {
                              $returnedEvents[$eventName] = array();
                         }
                         // Return only new events
                         if (!in_array($code, $returnedEvents[$eventName])) {
                              $out .= ($code ? "\n" : "") . "CKEDITOR.on('". $eventName ."', $code);";
                              $returnedEvents[$eventName][] = $code;
                         }
                    }
               }
          }

          return $out;
     }

     private function init()
     {
          static $initComplete;
          $out = "";

          if (!empty($initComplete)) {
               return "";
          }

          if ($this->initialized) {
               $initComplete = true;
               return "";
          }

          $args = "";
          $ckeditorPath = $this->ckeditorPath();

          if (!empty($this->timestamp) && $this->timestamp != "%"."TIMESTAMP%") {
               $args = '?t=' . $this->timestamp;
          }

          // Skip relative paths...
          if (strpos($ckeditorPath, '..') !== 0) {
               $out .= $this->script("window.CKEDITOR_BASEPATH='". $ckeditorPath ."';");
          }

          $out .= "<script type=\"text/javascript\" src=\"" . $ckeditorPath . 'ckeditor.js' . $args . "\"></script>\n";

          $extraCode = "";
          if ($this->timestamp != self::timestamp) {
               $extraCode .= ($extraCode ? "\n" : "") . "CKEDITOR.timestamp = '". $this->timestamp ."';";
          }
          if ($extraCode) {
               $out .= $this->script($extraCode);
          }

          $initComplete = $this->initialized = true;

          return $out;
     }

     private function ckeditorPath()
     {
          if (!empty($this->basePath)) {
               return $this->basePath;
          }

          if (isset($_SERVER['SCRIPT_FILENAME'])) {
               $realPath = dirname($_SERVER['SCRIPT_FILENAME']);
          }
          else {
               $realPath = realpath( './' ) ;
          }

          $selfPath = dirname($_SERVER['PHP_SELF']);
          $file = str_replace("\\", "/", __FILE__);

          if (!$selfPath || !$realPath || !$file) {
               return "/ckeditor/";
          }

          $documentRoot = substr($realPath, 0, strlen($realPath) - strlen($selfPath));
          $fileUrl = substr($file, strlen($documentRoot));
          $ckeditorUrl = str_replace("ckeditor_php5.php", "", $fileUrl);

          return $ckeditorUrl;
     }

     private function jsEncode($val)
     {
          if (is_null($val)) {
               return 'null';
          }
          if (is_bool($val)) {
               return $val ? 'true' : 'false';
          }
          if (is_int($val)) {
               return $val;
          }
          if (is_float($val)) {
               return str_replace(',', '.', $val);
          }
          if (is_array($val) || is_object($val)) {
               if (is_array($val) && (array_keys($val) === range(0,count($val)-1))) {
                    return '[' . implode(',', array_map(array($this, 'jsEncode'), $val)) . ']';
               }
               $temp = array();
               foreach ($val as $k => $v){
                    $temp[] = $this->jsEncode("{$k}") . ':' . $this->jsEncode($v);
               }
               return '{' . implode(',', $temp) . '}';
          }
          // String otherwise
          if (strpos($val, '@@') === 0)
               return substr($val, 2);
          if (strtoupper(substr($val, 0, 9)) == 'CKEDITOR.')
               return $val;

          return '"' . str_replace(array("\\", "/", "\n", "\t", "\r", "\x08", "\x0c", '"'), array('\\\\', '\\/', '\\n', '\\t', '\\r', '\\b', '\\f', '\"'), $val) . '"';
     }
}