1 | <?php
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2 | /*
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3 | * Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
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4 | * For licensing, see LICENSE.html or http://ckeditor.com/license
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5 | */
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6 |
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7 | /**
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8 | * \brief CKEditor class that can be used to create editor
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9 | * instances in PHP pages on server side.
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10 | * @see http://ckeditor.com
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11 | *
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12 | * Sample usage:
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13 | * @code
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14 | * $CKEditor = new CKEditor();
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15 | * $CKEditor->editor("editor1", "<p>Initial value.</p>");
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16 | * @endcode
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17 | */
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18 | class CKEditor
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19 | {
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20 | /**
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21 | * The version of %CKEditor.
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22 | */
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23 | const version = '3.2.1';
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24 | /**
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25 | * A constant string unique for each release of %CKEditor.
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26 | */
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27 | const timestamp = 'A39E';
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28 |
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29 | /**
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30 | * URL to the %CKEditor installation directory (absolute or relative to document root).
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31 | * If not set, CKEditor will try to guess it's path.
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32 | *
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33 | * Example usage:
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34 | * @code
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35 | * $CKEditor->basePath = '/ckeditor/';
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36 | * @endcode
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37 | */
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38 | public $basePath;
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39 | /**
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40 | * An array that holds the global %CKEditor configuration.
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41 | * For the list of available options, see http://docs.cksource.com/ckeditor_api/symbols/CKEDITOR.config.html
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42 | *
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43 | * Example usage:
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44 | * @code
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45 | * $CKEditor->config['height'] = 400;
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46 | * // Use @@ at the beggining of a string to ouput it without surrounding quotes.
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47 | * $CKEditor->config['width'] = '@@screen.width * 0.8';
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48 | * @endcode
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49 | */
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50 | public $config = array();
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51 | /**
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52 | * A boolean variable indicating whether CKEditor has been initialized.
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53 | * Set it to true only if you have already included
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54 | * <script> tag loading ckeditor.js in your website.
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55 | */
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56 | public $initialized = false;
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57 | /**
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58 | * Boolean variable indicating whether created code should be printed out or returned by a function.
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59 | *
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60 | * Example 1: get the code creating %CKEditor instance and print it on a page with the "echo" function.
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61 | * @code
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62 | * $CKEditor = new CKEditor();
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63 | * $CKEditor->returnOutput = true;
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64 | * $code = $CKEditor->editor("editor1", "<p>Initial value.</p>");
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65 | * echo "<p>Editor 1:</p>";
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66 | * echo $code;
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67 | * @endcode
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68 | */
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69 | public $returnOutput = false;
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70 | /**
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71 | * An array with textarea attributes.
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72 | *
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73 | * When %CKEditor is created with the editor() method, a HTML <textarea> element is created,
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74 | * it will be displayed to anyone with JavaScript disabled or with incompatible browser.
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75 | */
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76 | public $textareaAttributes = array( "rows" => 8, "cols" => 60 );
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77 | /**
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78 | * A string indicating the creation date of %CKEditor.
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79 | * Do not change it unless you want to force browsers to not use previously cached version of %CKEditor.
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80 | */
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81 | public $timestamp = "A39E";
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82 | /**
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83 | * An array that holds event listeners.
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84 | */
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85 | private $events = array();
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86 | /**
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87 | * An array that holds global event listeners.
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88 | */
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89 | private $globalEvents = array();
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90 |
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91 | /**
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92 | * Main Constructor.
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93 | *
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94 | * @param $basePath (string) URL to the %CKEditor installation directory (optional).
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95 | */
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96 | function __construct($basePath = null) {
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97 | if (!empty($basePath)) {
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98 | $this->basePath = $basePath;
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99 | }
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100 | }
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101 |
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102 | /**
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103 | * Creates a %CKEditor instance.
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104 | * In incompatible browsers %CKEditor will downgrade to plain HTML <textarea> element.
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105 | *
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106 | * @param $name (string) Name of the %CKEditor instance (this will be also the "name" attribute of textarea element).
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107 | * @param $value (string) Initial value (optional).
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108 | * @param $config (array) The specific configurations to apply to this editor instance (optional).
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109 | * @param $events (array) Event listeners for this editor instance (optional).
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110 | *
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111 | * Example usage:
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112 | * @code
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113 | * $CKEditor = new CKEditor();
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114 | * $CKEditor->editor("field1", "<p>Initial value.</p>");
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115 | * @endcode
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116 | *
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117 | * Advanced example:
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118 | * @code
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119 | * $CKEditor = new CKEditor();
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120 | * $config = array();
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121 | * $config['toolbar'] = array(
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122 | * array( 'Source', '-', 'Bold', 'Italic', 'Underline', 'Strike' ),
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123 | * array( 'Image', 'Link', 'Unlink', 'Anchor' )
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124 | * );
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125 | * $events['instanceReady'] = 'function (ev) {
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126 | * alert("Loaded: " + ev.editor.name);
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127 | * }';
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128 | * $CKEditor->editor("field1", "<p>Initial value.</p>", $config, $events);
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129 | * @endcode
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130 | */
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131 | public function editor($name, $value = "", $config = array(), $events = array())
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132 | {
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133 | $attr = "";
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134 | foreach ($this->textareaAttributes as $key => $val) {
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135 | $attr.= " " . $key . '="' . str_replace('"', '"', $val) . '"';
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136 | }
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137 | $out = "<textarea name=\"" . $name . "\"" . $attr . ">" . htmlspecialchars($value) . "</textarea>\n";
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138 | if (!$this->initialized) {
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139 | $out .= $this->init();
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140 | }
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141 |
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142 | $_config = $this->configSettings($config, $events);
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143 |
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144 | $js = $this->returnGlobalEvents();
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145 | if (!empty($_config))
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146 | $js .= "CKEDITOR.replace('".$name."', ".$this->jsEncode($_config).");";
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147 | else
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148 | $js .= "CKEDITOR.replace('".$name."');";
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149 |
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150 | $out .= $this->script($js);
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151 |
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152 | if (!$this->returnOutput) {
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153 | print $out;
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154 | $out = "";
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155 | }
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156 |
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157 | return $out;
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158 | }
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159 |
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160 | /**
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161 | * Replaces a <textarea> with a %CKEditor instance.
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162 | *
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163 | * @param $id (string) The id or name of textarea element.
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164 | * @param $config (array) The specific configurations to apply to this editor instance (optional).
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165 | * @param $events (array) Event listeners for this editor instance (optional).
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166 | *
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167 | * Example 1: adding %CKEditor to <textarea name="article"></textarea> element:
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168 | * @code
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169 | * $CKEditor = new CKEditor();
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170 | * $CKEditor->replace("article");
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171 | * @endcode
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172 | */
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173 | public function replace($id, $config = array(), $events = array())
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174 | {
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175 | $out = "";
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176 | if (!$this->initialized) {
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177 | $out .= $this->init();
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178 | }
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179 |
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180 | $_config = $this->configSettings($config, $events);
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181 |
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182 | $js = $this->returnGlobalEvents();
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183 | if (!empty($_config)) {
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184 | $js .= "CKEDITOR.replace('".$id."', ".$this->jsEncode($_config).");";
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185 | }
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186 | else {
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187 | $js .= "CKEDITOR.replace('".$id."');";
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188 | }
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189 | $out .= $this->script($js);
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190 |
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191 | if (!$this->returnOutput) {
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192 | print $out;
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193 | $out = "";
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194 | }
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195 |
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196 | return $out;
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197 | }
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198 |
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199 | /**
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200 | * Replace all <textarea> elements available in the document with editor instances.
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201 | *
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202 | * @param $className (string) If set, replace all textareas with class className in the page.
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203 | *
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204 | * Example 1: replace all <textarea> elements in the page.
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205 | * @code
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206 | * $CKEditor = new CKEditor();
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207 | * $CKEditor->replaceAll();
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208 | * @endcode
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209 | *
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210 | * Example 2: replace all <textarea class="myClassName"> elements in the page.
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211 | * @code
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212 | * $CKEditor = new CKEditor();
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213 | * $CKEditor->replaceAll( 'myClassName' );
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214 | * @endcode
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215 | */
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216 | public function replaceAll($className = null)
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217 | {
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218 | $out = "";
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219 | if (!$this->initialized) {
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220 | $out .= $this->init();
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221 | }
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222 |
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223 | $_config = $this->configSettings();
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224 |
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225 | $js = $this->returnGlobalEvents();
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226 | if (empty($_config)) {
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227 | if (empty($className)) {
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228 | $js .= "CKEDITOR.replaceAll();";
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229 | }
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230 | else {
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231 | $js .= "CKEDITOR.replaceAll('".$className."');";
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232 | }
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233 | }
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234 | else {
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235 | $classDetection = "";
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236 | $js .= "CKEDITOR.replaceAll( function(textarea, config) {\n";
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237 | if (!empty($className)) {
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238 | $js .= " var classRegex = new RegExp('(?:^| )' + '". $className ."' + '(?:$| )');\n";
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239 | $js .= " if (!classRegex.test(textarea.className))\n";
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240 | $js .= " return false;\n";
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241 | }
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242 | $js .= " CKEDITOR.tools.extend(config, ". $this->jsEncode($_config) .", true);";
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243 | $js .= "} );";
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244 |
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245 | }
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246 |
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247 | $out .= $this->script($js);
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248 |
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249 | if (!$this->returnOutput) {
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250 | print $out;
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251 | $out = "";
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252 | }
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253 |
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254 | return $out;
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255 | }
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256 |
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257 | /**
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258 | * Adds event listener.
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259 | * Events are fired by %CKEditor in various situations.
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260 | *
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261 | * @param $event (string) Event name.
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262 | * @param $javascriptCode (string) Javascript anonymous function or function name.
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263 | *
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264 | * Example usage:
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265 | * @code
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266 | * $CKEditor->addEventHandler('instanceReady', 'function (ev) {
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267 | * alert("Loaded: " + ev.editor.name);
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268 | * }');
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269 | * @endcode
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270 | */
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271 | public function addEventHandler($event, $javascriptCode)
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272 | {
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273 | if (!isset($this->events[$event])) {
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274 | $this->events[$event] = array();
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275 | }
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276 | // Avoid duplicates.
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277 | if (!in_array($javascriptCode, $this->events[$event])) {
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278 | $this->events[$event][] = $javascriptCode;
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279 | }
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280 | }
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281 |
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282 | /**
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283 | * Clear registered event handlers.
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284 | * Note: this function will have no effect on already created editor instances.
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285 | *
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286 | * @param $event (string) Event name, if not set all event handlers will be removed (optional).
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287 | */
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288 | public function clearEventHandlers($event = null)
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289 | {
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290 | if (!empty($event)) {
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291 | $this->events[$event] = array();
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292 | }
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293 | else {
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294 | $this->events = array();
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295 | }
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296 | }
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297 |
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298 | /**
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299 | * Adds global event listener.
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300 | *
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301 | * @param $event (string) Event name.
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302 | * @param $javascriptCode (string) Javascript anonymous function or function name.
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303 | *
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304 | * Example usage:
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305 | * @code
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306 | * $CKEditor->addGlobalEventHandler('dialogDefinition', 'function (ev) {
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307 | * alert("Loading dialog: " + ev.data.name);
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308 | * }');
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309 | * @endcode
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310 | */
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311 | public function addGlobalEventHandler($event, $javascriptCode)
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312 | {
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313 | if (!isset($this->globalEvents[$event])) {
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314 | $this->globalEvents[$event] = array();
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315 | }
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316 | // Avoid duplicates.
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317 | if (!in_array($javascriptCode, $this->globalEvents[$event])) {
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318 | $this->globalEvents[$event][] = $javascriptCode;
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319 | }
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320 | }
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321 |
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322 | /**
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323 | * Clear registered global event handlers.
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324 | * Note: this function will have no effect if the event handler has been already printed/returned.
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325 | *
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326 | * @param $event (string) Event name, if not set all event handlers will be removed (optional).
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327 | */
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328 | public function clearGlobalEventHandlers($event = null)
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329 | {
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330 | if (!empty($event)) {
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331 | $this->globalEvents[$event] = array();
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332 | }
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333 | else {
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334 | $this->globalEvents = array();
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335 | }
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336 | }
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337 |
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338 | /**
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339 | * Prints javascript code.
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340 | *
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341 | * @param string $js
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342 | */
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343 | private function script($js)
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344 | {
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345 | $out = "<script type=\"text/javascript\">";
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346 | $out .= "//<![CDATA[\n";
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347 | $out .= $js;
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348 | $out .= "\n//]]>";
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349 | $out .= "</script>\n";
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350 |
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351 | return $out;
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352 | }
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353 |
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354 | /**
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355 | * Returns the configuration array (global and instance specific settings are merged into one array).
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356 | *
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357 | * @param $config (array) The specific configurations to apply to editor instance.
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358 | * @param $events (array) Event listeners for editor instance.
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359 | */
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360 | private function configSettings($config = array(), $events = array())
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361 | {
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362 | $_config = $this->config;
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363 | $_events = $this->events;
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364 |
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365 | if (is_array($config) && !empty($config)) {
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366 | $_config = array_merge($_config, $config);
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367 | }
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368 |
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369 | if (is_array($events) && !empty($events)) {
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370 | foreach ($events as $eventName => $code) {
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371 | if (!isset($_events[$eventName])) {
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372 | $_events[$eventName] = array();
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373 | }
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374 | if (!in_array($code, $_events[$eventName])) {
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375 | $_events[$eventName][] = $code;
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376 | }
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377 | }
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378 | }
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379 |
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380 | if (!empty($_events)) {
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381 | foreach($_events as $eventName => $handlers) {
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382 | if (empty($handlers)) {
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383 | continue;
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384 | }
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385 | else if (count($handlers) == 1) {
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386 | $_config['on'][$eventName] = '@@'.$handlers[0];
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387 | }
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388 | else {
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389 | $_config['on'][$eventName] = '@@function (ev){';
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390 | foreach ($handlers as $handler => $code) {
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391 | $_config['on'][$eventName] .= '('.$code.')(ev);';
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392 | }
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393 | $_config['on'][$eventName] .= '}';
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394 | }
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395 | }
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396 | }
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397 |
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398 | return $_config;
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399 | }
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400 |
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401 | /**
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402 | * Return global event handlers.
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403 | */
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404 | private function returnGlobalEvents()
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405 | {
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406 | static $returnedEvents;
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407 | $out = "";
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408 |
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409 | if (!isset($returnedEvents)) {
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410 | $returnedEvents = array();
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411 | }
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412 |
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413 | if (!empty($this->globalEvents)) {
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414 | foreach ($this->globalEvents as $eventName => $handlers) {
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415 | foreach ($handlers as $handler => $code) {
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416 | if (!isset($returnedEvents[$eventName])) {
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417 | $returnedEvents[$eventName] = array();
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418 | }
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419 | // Return only new events
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420 | if (!in_array($code, $returnedEvents[$eventName])) {
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421 | $out .= ($code ? "\n" : "") . "CKEDITOR.on('". $eventName ."', $code);";
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422 | $returnedEvents[$eventName][] = $code;
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423 | }
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424 | }
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425 | }
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426 | }
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427 |
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428 | return $out;
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429 | }
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430 |
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431 | /**
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432 | * Initializes CKEditor (executed only once).
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433 | */
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434 | private function init()
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435 | {
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436 | static $initComplete;
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437 | $out = "";
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438 |
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439 | if (!empty($initComplete)) {
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440 | return "";
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441 | }
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442 |
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443 | if ($this->initialized) {
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444 | $initComplete = true;
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445 | return "";
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446 | }
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447 |
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448 | $args = "";
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449 | $ckeditorPath = $this->ckeditorPath();
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450 |
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451 | if (!empty($this->timestamp) && $this->timestamp != "%"."TIMESTAMP%") {
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452 | $args = '?t=' . $this->timestamp;
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453 | }
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454 |
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455 | // Skip relative paths...
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456 | if (strpos($ckeditorPath, '..') !== 0) {
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457 | $out .= $this->script("window.CKEDITOR_BASEPATH='". $ckeditorPath ."';");
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458 | }
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459 |
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460 | $out .= "<script type=\"text/javascript\" src=\"" . $ckeditorPath . 'ckeditor.js' . $args . "\"></script>\n";
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461 |
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462 | $extraCode = "";
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463 | if ($this->timestamp != self::timestamp) {
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464 | $extraCode .= ($extraCode ? "\n" : "") . "CKEDITOR.timestamp = '". $this->timestamp ."';";
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465 | }
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466 | if ($extraCode) {
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467 | $out .= $this->script($extraCode);
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468 | }
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469 |
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470 | $initComplete = $this->initialized = true;
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471 |
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472 | return $out;
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473 | }
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474 |
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475 | /**
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476 | * Return path to ckeditor.js.
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477 | */
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478 | private function ckeditorPath()
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479 | {
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480 | if (!empty($this->basePath)) {
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481 | return $this->basePath;
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482 | }
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483 |
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484 | /**
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485 | * The absolute pathname of the currently executing script.
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486 | * Note: If a script is executed with the CLI, as a relative path, such as file.php or ../file.php,
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487 | * $_SERVER['SCRIPT_FILENAME'] will contain the relative path specified by the user.
|
---|
488 | */
|
---|
489 | if (isset($_SERVER['SCRIPT_FILENAME'])) {
|
---|
490 | $realPath = dirname($_SERVER['SCRIPT_FILENAME']);
|
---|
491 | }
|
---|
492 | else {
|
---|
493 | /**
|
---|
494 | * realpath â Returns canonicalized absolute pathname
|
---|
495 | */
|
---|
496 | $realPath = realpath( './' ) ;
|
---|
497 | }
|
---|
498 |
|
---|
499 | /**
|
---|
500 | * The filename of the currently executing script, relative to the document root.
|
---|
501 | * For instance, $_SERVER['PHP_SELF'] in a script at the address http://example.com/test.php/foo.bar
|
---|
502 | * would be /test.php/foo.bar.
|
---|
503 | */
|
---|
504 | $selfPath = dirname($_SERVER['PHP_SELF']);
|
---|
505 | $file = str_replace("\\", "/", __FILE__);
|
---|
506 |
|
---|
507 | if (!$selfPath || !$realPath || !$file) {
|
---|
508 | return "/ckeditor/";
|
---|
509 | }
|
---|
510 |
|
---|
511 | $documentRoot = substr($realPath, 0, strlen($realPath) - strlen($selfPath));
|
---|
512 | $fileUrl = substr($file, strlen($documentRoot));
|
---|
513 | $ckeditorUrl = str_replace("ckeditor_php5.php", "", $fileUrl);
|
---|
514 |
|
---|
515 | return $ckeditorUrl;
|
---|
516 | }
|
---|
517 |
|
---|
518 | /**
|
---|
519 | * This little function provides a basic JSON support.
|
---|
520 | * http://php.net/manual/en/function.json-encode.php
|
---|
521 | *
|
---|
522 | * @param mixed $val
|
---|
523 | * @return string
|
---|
524 | */
|
---|
525 | private function jsEncode($val)
|
---|
526 | {
|
---|
527 | if (is_null($val)) {
|
---|
528 | return 'null';
|
---|
529 | }
|
---|
530 | if ($val === false) {
|
---|
531 | return 'false';
|
---|
532 | }
|
---|
533 | if ($val === true) {
|
---|
534 | return 'true';
|
---|
535 | }
|
---|
536 | if (is_scalar($val))
|
---|
537 | {
|
---|
538 | if (is_float($val))
|
---|
539 | {
|
---|
540 | // Always use "." for floats.
|
---|
541 | $val = str_replace(",", ".", strval($val));
|
---|
542 | }
|
---|
543 |
|
---|
544 | // Use @@ to not use quotes when outputting string value
|
---|
545 | if (strpos($val, '@@') === 0) {
|
---|
546 | return substr($val, 2);
|
---|
547 | }
|
---|
548 | else {
|
---|
549 | // All scalars are converted to strings to avoid indeterminism.
|
---|
550 | // PHP's "1" and 1 are equal for all PHP operators, but
|
---|
551 | // JS's "1" and 1 are not. So if we pass "1" or 1 from the PHP backend,
|
---|
552 | // we should get the same result in the JS frontend (string).
|
---|
553 | // Character replacements for JSON.
|
---|
554 | static $jsonReplaces = array(array("\\", "/", "\n", "\t", "\r", "\b", "\f", '"'),
|
---|
555 | array('\\\\', '\\/', '\\n', '\\t', '\\r', '\\b', '\\f', '\"'));
|
---|
556 |
|
---|
557 | $val = str_replace($jsonReplaces[0], $jsonReplaces[1], $val);
|
---|
558 |
|
---|
559 | return '"' . $val . '"';
|
---|
560 | }
|
---|
561 | }
|
---|
562 | $isList = true;
|
---|
563 | for ($i = 0, reset($val); $i < count($val); $i++, next($val))
|
---|
564 | {
|
---|
565 | if (key($val) !== $i)
|
---|
566 | {
|
---|
567 | $isList = false;
|
---|
568 | break;
|
---|
569 | }
|
---|
570 | }
|
---|
571 | $result = array();
|
---|
572 | if ($isList)
|
---|
573 | {
|
---|
574 | foreach ($val as $v) $result[] = $this->jsEncode($v);
|
---|
575 | return '[ ' . join(', ', $result) . ' ]';
|
---|
576 | }
|
---|
577 | else
|
---|
578 | {
|
---|
579 | foreach ($val as $k => $v) $result[] = $this->jsEncode($k).': '.$this->jsEncode($v);
|
---|
580 | return '{ ' . join(', ', $result) . ' }';
|
---|
581 | }
|
---|
582 | }
|
---|
583 | }
|
---|