[6226] | 1 | <?php |
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| 2 | /* |
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[9293] | 3 | * Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved. |
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[6226] | 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 | * \private |
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| 23 | */ |
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[9293] | 24 | var $version = '3.5.2'; |
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[6226] | 25 | /** |
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| 26 | * A constant string unique for each release of %CKEditor. |
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| 27 | * \private |
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| 28 | */ |
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[9293] | 29 | var $_timestamp = 'B1GG4Z6'; |
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[6226] | 30 | |
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| 31 | /** |
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| 32 | * URL to the %CKEditor installation directory (absolute or relative to document root). |
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| 33 | * If not set, CKEditor will try to guess it's path. |
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| 34 | * |
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| 35 | * Example usage: |
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| 36 | * @code |
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| 37 | * $CKEditor->basePath = '/ckeditor/'; |
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| 38 | * @endcode |
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| 39 | */ |
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| 40 | var $basePath; |
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| 41 | /** |
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| 42 | * An array that holds the global %CKEditor configuration. |
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| 43 | * For the list of available options, see http://docs.cksource.com/ckeditor_api/symbols/CKEDITOR.config.html |
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| 44 | * |
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| 45 | * Example usage: |
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| 46 | * @code |
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| 47 | * $CKEditor->config['height'] = 400; |
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| 48 | * // Use @@ at the beggining of a string to ouput it without surrounding quotes. |
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| 49 | * $CKEditor->config['width'] = '@@screen.width * 0.8'; |
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| 50 | * @endcode |
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| 51 | */ |
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| 52 | var $config = array(); |
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| 53 | /** |
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| 54 | * A boolean variable indicating whether CKEditor has been initialized. |
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| 55 | * Set it to true only if you have already included |
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| 56 | * <script> tag loading ckeditor.js in your website. |
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| 57 | */ |
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| 58 | var $initialized = false; |
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| 59 | /** |
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| 60 | * Boolean variable indicating whether created code should be printed out or returned by a function. |
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| 61 | * |
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| 62 | * Example 1: get the code creating %CKEditor instance and print it on a page with the "echo" function. |
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| 63 | * @code |
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| 64 | * $CKEditor = new CKEditor(); |
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| 65 | * $CKEditor->returnOutput = true; |
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| 66 | * $code = $CKEditor->editor("editor1", "<p>Initial value.</p>"); |
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| 67 | * echo "<p>Editor 1:</p>"; |
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| 68 | * echo $code; |
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| 69 | * @endcode |
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| 70 | */ |
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| 71 | var $returnOutput = false; |
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| 72 | /** |
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| 73 | * An array with textarea attributes. |
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| 74 | * |
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| 75 | * When %CKEditor is created with the editor() method, a HTML <textarea> element is created, |
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| 76 | * it will be displayed to anyone with JavaScript disabled or with incompatible browser. |
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| 77 | */ |
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| 78 | var $textareaAttributes = array( "rows" => 8, "cols" => 60 ); |
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| 79 | /** |
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| 80 | * A string indicating the creation date of %CKEditor. |
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| 81 | * Do not change it unless you want to force browsers to not use previously cached version of %CKEditor. |
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| 82 | */ |
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[9293] | 83 | var $timestamp = "B1GG4Z6"; |
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[6226] | 84 | /** |
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| 85 | * An array that holds event listeners. |
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| 86 | * \private |
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| 87 | */ |
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| 88 | var $_events = array(); |
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| 89 | /** |
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| 90 | * An array that holds global event listeners. |
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| 91 | * \private |
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| 92 | */ |
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| 93 | var $_globalEvents = array(); |
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| 94 | |
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| 95 | /** |
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| 96 | * Main Constructor. |
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| 97 | * |
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| 98 | * @param $basePath (string) URL to the %CKEditor installation directory (optional). |
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| 99 | */ |
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| 100 | function CKEditor($basePath = null) { |
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| 101 | if (!empty($basePath)) { |
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| 102 | $this->basePath = $basePath; |
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| 103 | } |
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| 104 | } |
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| 105 | |
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| 106 | /** |
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| 107 | * Creates a %CKEditor instance. |
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| 108 | * In incompatible browsers %CKEditor will downgrade to plain HTML <textarea> element. |
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| 109 | * |
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| 110 | * @param $name (string) Name of the %CKEditor instance (this will be also the "name" attribute of textarea element). |
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| 111 | * @param $value (string) Initial value (optional). |
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| 112 | * @param $config (array) The specific configurations to apply to this editor instance (optional). |
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| 113 | * @param $events (array) Event listeners for this editor instance (optional). |
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| 114 | * |
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| 115 | * Example usage: |
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| 116 | * @code |
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| 117 | * $CKEditor = new CKEditor(); |
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| 118 | * $CKEditor->editor("field1", "<p>Initial value.</p>"); |
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| 119 | * @endcode |
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| 120 | * |
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| 121 | * Advanced example: |
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| 122 | * @code |
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| 123 | * $CKEditor = new CKEditor(); |
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| 124 | * $config = array(); |
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| 125 | * $config['toolbar'] = array( |
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| 126 | * array( 'Source', '-', 'Bold', 'Italic', 'Underline', 'Strike' ), |
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| 127 | * array( 'Image', 'Link', 'Unlink', 'Anchor' ) |
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| 128 | * ); |
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| 129 | * $events['instanceReady'] = 'function (ev) { |
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| 130 | * alert("Loaded: " + ev.editor.name); |
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| 131 | * }'; |
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| 132 | * $CKEditor->editor("field1", "<p>Initial value.</p>", $config, $events); |
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| 133 | * @endcode |
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| 134 | */ |
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| 135 | function editor($name, $value = "", $config = array(), $events = array()) |
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| 136 | { |
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| 137 | $attr = ""; |
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| 138 | foreach ($this->textareaAttributes as $key => $val) { |
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| 139 | $attr.= " " . $key . '="' . str_replace('"', '"', $val) . '"'; |
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| 140 | } |
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| 141 | $out = "<textarea name=\"" . $name . "\"" . $attr . ">" . htmlspecialchars($value) . "</textarea>\n"; |
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| 142 | if (!$this->initialized) { |
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| 143 | $out .= $this->init(); |
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| 144 | } |
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| 145 | |
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| 146 | $_config = $this->configSettings($config, $events); |
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| 147 | |
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| 148 | $js = $this->returnGlobalEvents(); |
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| 149 | if (!empty($_config)) |
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| 150 | $js .= "CKEDITOR.replace('".$name."', ".$this->jsEncode($_config).");"; |
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| 151 | else |
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| 152 | $js .= "CKEDITOR.replace('".$name."');"; |
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| 153 | |
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| 154 | $out .= $this->script($js); |
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| 155 | |
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| 156 | if (!$this->returnOutput) { |
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| 157 | print $out; |
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| 158 | $out = ""; |
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| 159 | } |
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| 160 | |
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| 161 | return $out; |
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| 162 | } |
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| 163 | |
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| 164 | /** |
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| 165 | * Replaces a <textarea> with a %CKEditor instance. |
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| 166 | * |
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| 167 | * @param $id (string) The id or name of textarea element. |
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| 168 | * @param $config (array) The specific configurations to apply to this editor instance (optional). |
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| 169 | * @param $events (array) Event listeners for this editor instance (optional). |
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| 170 | * |
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| 171 | * Example 1: adding %CKEditor to <textarea name="article"></textarea> element: |
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| 172 | * @code |
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| 173 | * $CKEditor = new CKEditor(); |
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| 174 | * $CKEditor->replace("article"); |
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| 175 | * @endcode |
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| 176 | */ |
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| 177 | function replace($id, $config = array(), $events = array()) |
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| 178 | { |
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| 179 | $out = ""; |
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| 180 | if (!$this->initialized) { |
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| 181 | $out .= $this->init(); |
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| 182 | } |
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| 183 | |
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| 184 | $_config = $this->configSettings($config, $events); |
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| 185 | |
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| 186 | $js = $this->returnGlobalEvents(); |
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| 187 | if (!empty($_config)) { |
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| 188 | $js .= "CKEDITOR.replace('".$id."', ".$this->jsEncode($_config).");"; |
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| 189 | } |
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| 190 | else { |
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| 191 | $js .= "CKEDITOR.replace('".$id."');"; |
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| 192 | } |
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| 193 | $out .= $this->script($js); |
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| 194 | |
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| 195 | if (!$this->returnOutput) { |
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| 196 | print $out; |
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| 197 | $out = ""; |
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| 198 | } |
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| 199 | |
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| 200 | return $out; |
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| 201 | } |
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| 202 | |
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| 203 | /** |
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| 204 | * Replace all <textarea> elements available in the document with editor instances. |
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| 205 | * |
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| 206 | * @param $className (string) If set, replace all textareas with class className in the page. |
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| 207 | * |
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| 208 | * Example 1: replace all <textarea> elements in the page. |
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| 209 | * @code |
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| 210 | * $CKEditor = new CKEditor(); |
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| 211 | * $CKEditor->replaceAll(); |
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| 212 | * @endcode |
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| 213 | * |
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| 214 | * Example 2: replace all <textarea class="myClassName"> elements in the page. |
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| 215 | * @code |
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| 216 | * $CKEditor = new CKEditor(); |
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| 217 | * $CKEditor->replaceAll( 'myClassName' ); |
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| 218 | * @endcode |
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| 219 | */ |
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| 220 | function replaceAll($className = null) |
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| 221 | { |
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| 222 | $out = ""; |
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| 223 | if (!$this->initialized) { |
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| 224 | $out .= $this->init(); |
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| 225 | } |
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| 226 | |
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| 227 | $_config = $this->configSettings(); |
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| 228 | |
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| 229 | $js = $this->returnGlobalEvents(); |
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| 230 | if (empty($_config)) { |
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| 231 | if (empty($className)) { |
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| 232 | $js .= "CKEDITOR.replaceAll();"; |
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| 233 | } |
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| 234 | else { |
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| 235 | $js .= "CKEDITOR.replaceAll('".$className."');"; |
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| 236 | } |
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| 237 | } |
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| 238 | else { |
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| 239 | $classDetection = ""; |
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| 240 | $js .= "CKEDITOR.replaceAll( function(textarea, config) {\n"; |
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| 241 | if (!empty($className)) { |
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| 242 | $js .= " var classRegex = new RegExp('(?:^| )' + '". $className ."' + '(?:$| )');\n"; |
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| 243 | $js .= " if (!classRegex.test(textarea.className))\n"; |
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| 244 | $js .= " return false;\n"; |
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| 245 | } |
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| 246 | $js .= " CKEDITOR.tools.extend(config, ". $this->jsEncode($_config) .", true);"; |
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| 247 | $js .= "} );"; |
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| 248 | |
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| 249 | } |
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| 250 | |
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| 251 | $out .= $this->script($js); |
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| 252 | |
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| 253 | if (!$this->returnOutput) { |
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| 254 | print $out; |
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| 255 | $out = ""; |
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| 256 | } |
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| 257 | |
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| 258 | return $out; |
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| 259 | } |
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| 260 | |
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| 261 | /** |
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| 262 | * Adds event listener. |
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| 263 | * Events are fired by %CKEditor in various situations. |
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| 264 | * |
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| 265 | * @param $event (string) Event name. |
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| 266 | * @param $javascriptCode (string) Javascript anonymous function or function name. |
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| 267 | * |
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| 268 | * Example usage: |
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| 269 | * @code |
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| 270 | * $CKEditor->addEventHandler('instanceReady', 'function (ev) { |
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| 271 | * alert("Loaded: " + ev.editor.name); |
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| 272 | * }'); |
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| 273 | * @endcode |
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| 274 | */ |
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| 275 | function addEventHandler($event, $javascriptCode) |
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| 276 | { |
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| 277 | if (!isset($this->_events[$event])) { |
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| 278 | $this->_events[$event] = array(); |
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| 279 | } |
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| 280 | // Avoid duplicates. |
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| 281 | if (!in_array($javascriptCode, $this->_events[$event])) { |
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| 282 | $this->_events[$event][] = $javascriptCode; |
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| 283 | } |
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| 284 | } |
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| 285 | |
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| 286 | /** |
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| 287 | * Clear registered event handlers. |
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| 288 | * Note: this function will have no effect on already created editor instances. |
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| 289 | * |
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| 290 | * @param $event (string) Event name, if not set all event handlers will be removed (optional). |
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| 291 | */ |
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| 292 | function clearEventHandlers($event = null) |
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| 293 | { |
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| 294 | if (!empty($event)) { |
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| 295 | $this->_events[$event] = array(); |
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| 296 | } |
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| 297 | else { |
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| 298 | $this->_events = array(); |
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| 299 | } |
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| 300 | } |
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| 301 | |
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| 302 | /** |
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| 303 | * Adds global event listener. |
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| 304 | * |
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| 305 | * @param $event (string) Event name. |
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| 306 | * @param $javascriptCode (string) Javascript anonymous function or function name. |
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| 307 | * |
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| 308 | * Example usage: |
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| 309 | * @code |
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| 310 | * $CKEditor->addGlobalEventHandler('dialogDefinition', 'function (ev) { |
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| 311 | * alert("Loading dialog: " + ev.data.name); |
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| 312 | * }'); |
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| 313 | * @endcode |
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| 314 | */ |
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| 315 | function addGlobalEventHandler($event, $javascriptCode) |
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| 316 | { |
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| 317 | if (!isset($this->_globalEvents[$event])) { |
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| 318 | $this->_globalEvents[$event] = array(); |
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| 319 | } |
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| 320 | // Avoid duplicates. |
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| 321 | if (!in_array($javascriptCode, $this->_globalEvents[$event])) { |
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| 322 | $this->_globalEvents[$event][] = $javascriptCode; |
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| 323 | } |
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| 324 | } |
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| 325 | |
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| 326 | /** |
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| 327 | * Clear registered global event handlers. |
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| 328 | * Note: this function will have no effect if the event handler has been already printed/returned. |
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| 329 | * |
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| 330 | * @param $event (string) Event name, if not set all event handlers will be removed (optional). |
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| 331 | */ |
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| 332 | function clearGlobalEventHandlers($event = null) |
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| 333 | { |
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| 334 | if (!empty($event)) { |
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| 335 | $this->_globalEvents[$event] = array(); |
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| 336 | } |
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| 337 | else { |
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| 338 | $this->_globalEvents = array(); |
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| 339 | } |
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| 340 | } |
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| 341 | |
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| 342 | /** |
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| 343 | * Prints javascript code. |
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| 344 | * \private |
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| 345 | * |
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| 346 | * @param string $js |
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| 347 | */ |
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| 348 | function script($js) |
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| 349 | { |
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| 350 | $out = "<script type=\"text/javascript\">"; |
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| 351 | $out .= "//<![CDATA[\n"; |
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| 352 | $out .= $js; |
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| 353 | $out .= "\n//]]>"; |
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| 354 | $out .= "</script>\n"; |
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| 355 | |
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| 356 | return $out; |
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| 357 | } |
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| 358 | |
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| 359 | /** |
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| 360 | * Returns the configuration array (global and instance specific settings are merged into one array). |
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| 361 | * \private |
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| 362 | * |
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| 363 | * @param $config (array) The specific configurations to apply to editor instance. |
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| 364 | * @param $events (array) Event listeners for editor instance. |
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| 365 | */ |
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| 366 | function configSettings($config = array(), $events = array()) |
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| 367 | { |
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| 368 | $_config = $this->config; |
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| 369 | $_events = $this->_events; |
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| 370 | |
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| 371 | if (is_array($config) && !empty($config)) { |
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| 372 | $_config = array_merge($_config, $config); |
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| 373 | } |
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| 374 | |
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| 375 | if (is_array($events) && !empty($events)) { |
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| 376 | foreach ($events as $eventName => $code) { |
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| 377 | if (!isset($_events[$eventName])) { |
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| 378 | $_events[$eventName] = array(); |
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| 379 | } |
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| 380 | if (!in_array($code, $_events[$eventName])) { |
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| 381 | $_events[$eventName][] = $code; |
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| 382 | } |
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| 383 | } |
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| 384 | } |
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| 385 | |
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| 386 | if (!empty($_events)) { |
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| 387 | foreach($_events as $eventName => $handlers) { |
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| 388 | if (empty($handlers)) { |
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| 389 | continue; |
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| 390 | } |
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| 391 | else if (count($handlers) == 1) { |
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| 392 | $_config['on'][$eventName] = '@@'.$handlers[0]; |
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| 393 | } |
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| 394 | else { |
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| 395 | $_config['on'][$eventName] = '@@function (ev){'; |
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| 396 | foreach ($handlers as $handler => $code) { |
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| 397 | $_config['on'][$eventName] .= '('.$code.')(ev);'; |
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| 398 | } |
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| 399 | $_config['on'][$eventName] .= '}'; |
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| 400 | } |
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| 401 | } |
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| 402 | } |
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| 403 | |
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| 404 | return $_config; |
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| 405 | } |
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| 406 | |
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| 407 | /** |
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| 408 | * Return global event handlers. |
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| 409 | * \private |
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| 410 | */ |
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| 411 | function returnGlobalEvents() |
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| 412 | { |
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| 413 | static $returnedEvents; |
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| 414 | $out = ""; |
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| 415 | |
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| 416 | if (!isset($returnedEvents)) { |
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| 417 | $returnedEvents = array(); |
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| 418 | } |
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| 419 | |
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| 420 | if (!empty($this->_globalEvents)) { |
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| 421 | foreach ($this->_globalEvents as $eventName => $handlers) { |
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| 422 | foreach ($handlers as $handler => $code) { |
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| 423 | if (!isset($returnedEvents[$eventName])) { |
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| 424 | $returnedEvents[$eventName] = array(); |
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| 425 | } |
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| 426 | // Return only new events |
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| 427 | if (!in_array($code, $returnedEvents[$eventName])) { |
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| 428 | $out .= ($code ? "\n" : "") . "CKEDITOR.on('". $eventName ."', $code);"; |
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| 429 | $returnedEvents[$eventName][] = $code; |
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| 430 | } |
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| 431 | } |
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| 432 | } |
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| 433 | } |
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| 434 | |
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| 435 | return $out; |
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| 436 | } |
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| 437 | |
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| 438 | /** |
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| 439 | * Initializes CKEditor (executed only once). |
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| 440 | * \private |
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| 441 | */ |
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| 442 | function init() |
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| 443 | { |
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| 444 | static $initComplete; |
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| 445 | $out = ""; |
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| 446 | |
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| 447 | if (!empty($initComplete)) { |
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| 448 | return ""; |
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| 449 | } |
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| 450 | |
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| 451 | if ($this->initialized) { |
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| 452 | $initComplete = true; |
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| 453 | return ""; |
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| 454 | } |
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| 455 | |
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| 456 | $args = ""; |
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| 457 | $ckeditorPath = $this->ckeditorPath(); |
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| 458 | |
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| 459 | if (!empty($this->timestamp) && $this->timestamp != "%"."TIMESTAMP%") { |
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| 460 | $args = '?t=' . $this->timestamp; |
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| 461 | } |
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| 462 | |
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| 463 | // Skip relative paths... |
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| 464 | if (strpos($ckeditorPath, '..') !== 0) { |
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| 465 | $out .= $this->script("window.CKEDITOR_BASEPATH='". $ckeditorPath ."';"); |
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| 466 | } |
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| 467 | |
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| 468 | $out .= "<script type=\"text/javascript\" src=\"" . $ckeditorPath . 'ckeditor.js' . $args . "\"></script>\n"; |
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| 469 | |
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| 470 | $extraCode = ""; |
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| 471 | if ($this->timestamp != $this->_timestamp) { |
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| 472 | $extraCode .= ($extraCode ? "\n" : "") . "CKEDITOR.timestamp = '". $this->timestamp ."';"; |
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| 473 | } |
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| 474 | if ($extraCode) { |
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| 475 | $out .= $this->script($extraCode); |
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| 476 | } |
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| 477 | |
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| 478 | $initComplete = $this->initialized = true; |
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| 479 | |
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| 480 | return $out; |
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| 481 | } |
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| 482 | |
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| 483 | /** |
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| 484 | * Return path to ckeditor.js. |
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| 485 | * \private |
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| 486 | */ |
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| 487 | function ckeditorPath() |
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| 488 | { |
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| 489 | if (!empty($this->basePath)) { |
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| 490 | return $this->basePath; |
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| 491 | } |
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| 492 | |
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| 493 | /** |
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| 494 | * The absolute pathname of the currently executing script. |
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| 495 | * Note: If a script is executed with the CLI, as a relative path, such as file.php or ../file.php, |
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| 496 | * $_SERVER['SCRIPT_FILENAME'] will contain the relative path specified by the user. |
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| 497 | */ |
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| 498 | if (isset($_SERVER['SCRIPT_FILENAME'])) { |
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| 499 | $realPath = dirname($_SERVER['SCRIPT_FILENAME']); |
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| 500 | } |
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| 501 | else { |
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| 502 | /** |
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[9293] | 503 | * realpath - Returns canonicalized absolute pathname |
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[6226] | 504 | */ |
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| 505 | $realPath = realpath( './' ) ; |
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| 506 | } |
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| 507 | |
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| 508 | /** |
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| 509 | * The filename of the currently executing script, relative to the document root. |
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| 510 | * For instance, $_SERVER['PHP_SELF'] in a script at the address http://example.com/test.php/foo.bar |
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| 511 | * would be /test.php/foo.bar. |
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| 512 | */ |
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| 513 | $selfPath = dirname($_SERVER['PHP_SELF']); |
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| 514 | $file = str_replace("\\", "/", __FILE__); |
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| 515 | |
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| 516 | if (!$selfPath || !$realPath || !$file) { |
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| 517 | return "/ckeditor/"; |
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| 518 | } |
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| 519 | |
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| 520 | $documentRoot = substr($realPath, 0, strlen($realPath) - strlen($selfPath)); |
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| 521 | $fileUrl = substr($file, strlen($documentRoot)); |
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[9293] | 522 | $ckeditorUrl = str_replace("ckeditor_php4.php", "", $fileUrl); |
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[6226] | 523 | |
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| 524 | return $ckeditorUrl; |
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| 525 | } |
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| 526 | |
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| 527 | /** |
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| 528 | * This little function provides a basic JSON support. |
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| 529 | * http://php.net/manual/en/function.json-encode.php |
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| 530 | * \private |
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| 531 | * |
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| 532 | * @param mixed $val |
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| 533 | * @return string |
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| 534 | */ |
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| 535 | function jsEncode($val) |
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| 536 | { |
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| 537 | if (is_null($val)) { |
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| 538 | return 'null'; |
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| 539 | } |
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| 540 | if ($val === false) { |
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| 541 | return 'false'; |
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| 542 | } |
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| 543 | if ($val === true) { |
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| 544 | return 'true'; |
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| 545 | } |
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| 546 | if (is_scalar($val)) |
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| 547 | { |
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| 548 | if (is_float($val)) |
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| 549 | { |
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| 550 | // Always use "." for floats. |
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| 551 | $val = str_replace(",", ".", strval($val)); |
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| 552 | } |
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| 553 | |
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| 554 | // Use @@ to not use quotes when outputting string value |
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| 555 | if (strpos($val, '@@') === 0) { |
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| 556 | return substr($val, 2); |
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| 557 | } |
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| 558 | else { |
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| 559 | // All scalars are converted to strings to avoid indeterminism. |
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| 560 | // PHP's "1" and 1 are equal for all PHP operators, but |
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| 561 | // JS's "1" and 1 are not. So if we pass "1" or 1 from the PHP backend, |
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| 562 | // we should get the same result in the JS frontend (string). |
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| 563 | // Character replacements for JSON. |
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| 564 | static $jsonReplaces = array(array("\\", "/", "\n", "\t", "\r", "\b", "\f", '"'), |
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| 565 | array('\\\\', '\\/', '\\n', '\\t', '\\r', '\\b', '\\f', '\"')); |
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| 566 | |
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| 567 | $val = str_replace($jsonReplaces[0], $jsonReplaces[1], $val); |
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[9293] | 568 | if (strtoupper(substr($val, 0, 9)) == 'CKEDITOR.') { |
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| 569 | return $val; |
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| 570 | } |
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[6226] | 571 | |
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| 572 | return '"' . $val . '"'; |
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| 573 | } |
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| 574 | } |
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| 575 | $isList = true; |
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| 576 | for ($i = 0, reset($val); $i < count($val); $i++, next($val)) |
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| 577 | { |
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| 578 | if (key($val) !== $i) |
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| 579 | { |
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| 580 | $isList = false; |
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| 581 | break; |
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| 582 | } |
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| 583 | } |
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| 584 | $result = array(); |
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| 585 | if ($isList) |
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| 586 | { |
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| 587 | foreach ($val as $v) $result[] = $this->jsEncode($v); |
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| 588 | return '[ ' . join(', ', $result) . ' ]'; |
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| 589 | } |
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| 590 | else |
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| 591 | { |
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| 592 | foreach ($val as $k => $v) $result[] = $this->jsEncode($k).': '.$this->jsEncode($v); |
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| 593 | return '{ ' . join(', ', $result) . ' }'; |
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| 594 | } |
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| 595 | } |
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| 596 | } |
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