lib/ckeditor/ckeditor_php5.php

Go to the documentation of this file.

<?php
/*
* Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.html or http://ckeditor.com/license
*/

class CKEditor
{
        const version = '3.4.1';
        const timestamp = 'A8LE4JO';

        public $basePath;
        public $config = array();
        public $initialized = false;
        public $returnOutput = false;
        public $textareaAttributes = array( "rows" => 8, "cols" => 60 );
        public $timestamp = "A8LE4JO";
        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 ($val === false) {
                        return 'false';
                }
                if ($val === true) {
                        return 'true';
                }
                if (is_scalar($val))
                {
                        if (is_float($val))
                        {
                                // Always use "." for floats.
                                $val = str_replace(",", ".", strval($val));
                        }

                        // Use @@ to not use quotes when outputting string value
                        if (strpos($val, '@@') === 0) {
                                return substr($val, 2);
                        }
                        else {
                                // All scalars are converted to strings to avoid indeterminism.
                                // PHP's "1" and 1 are equal for all PHP operators, but
                                // JS's "1" and 1 are not. So if we pass "1" or 1 from the PHP backend,
                                // we should get the same result in the JS frontend (string).
                                // Character replacements for JSON.
                                static $jsonReplaces = array(array("\\", "/", "\n", "\t", "\r", "\b", "\f", '"'),
                                array('\\\\', '\\/', '\\n', '\\t', '\\r', '\\b', '\\f', '\"'));

                                $val = str_replace($jsonReplaces[0], $jsonReplaces[1], $val);

                                return '"' . $val . '"';
                        }
                }
                $isList = true;
                for ($i = 0, reset($val); $i < count($val); $i++, next($val))
                {
                        if (key($val) !== $i)
                        {
                                $isList = false;
                                break;
                        }
                }
                $result = array();
                if ($isList)
                {
                        foreach ($val as $v) $result[] = $this->jsEncode($v);
                        return '[ ' . join(', ', $result) . ' ]';
                }
                else
                {
                        foreach ($val as $k => $v) $result[] = $this->jsEncode($k).': '.$this->jsEncode($v);
                        return '{ ' . join(', ', $result) . ' }';
                }
        }
}