[2862] | 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";
|
---|
| 461 |
|
---|
| 462 | $extraCode = "";
|
---|
| 463 | if ($this->timestamp != self::timestamp) {
|
---|
| 464 | $extraCode .= ($extraCode ? "\n" : "") . "CKEDITOR.timestamp = '". $this->timestamp ."';";
|
---|
| 465 | }
|
---|
| 466 | if ($extraCode) {
|
---|
| 467 | $out .= $this->script($extraCode);
|
---|
| 468 | }
|
---|
| 469 |
|
---|
| 470 | $initComplete = $this->initialized = true;
|
---|
| 471 |
|
---|
| 472 | return $out;
|
---|
| 473 | }
|
---|
| 474 |
|
---|
| 475 | /**
|
---|
| 476 | * Return path to ckeditor.js.
|
---|
| 477 | */
|
---|
| 478 | private function ckeditorPath()
|
---|
| 479 | {
|
---|
| 480 | if (!empty($this->basePath)) {
|
---|
| 481 | return $this->basePath;
|
---|
| 482 | }
|
---|
| 483 |
|
---|
| 484 | /**
|
---|
| 485 | * The absolute pathname of the currently executing script.
|
---|
| 486 | * Note: If a script is executed with the CLI, as a relative path, such as file.php or ../file.php,
|
---|
| 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 | }
|
---|