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<!DOCTYPE html>
<!--
Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
-->
<html lang="en">
<head>
<meta charset="utf-8">
<title>HTML Compliant Output — CKEditor Sample</title>
<script src="../../../ckeditor.js"></script>
<script src="../../../samples/old/sample.js"></script>
<link href="../../../samples/old/sample.css" rel="stylesheet">
<meta name="ckeditor-sample-required-plugins" content="sourcearea">
<meta name="ckeditor-sample-name" content="Output HTML">
<meta name="ckeditor-sample-group" content="Advanced Samples">
<meta name="ckeditor-sample-description" content="Configuring CKEditor to produce legacy HTML 4 code.">
<meta name="description" content="Try the latest sample of CKEditor 4 and learn more about customizing your WYSIWYG editor with endless possibilities.">
</head>
<body>
<h1 class="samples">
<a href="../../../samples/old/index.html">CKEditor Samples</a> » Producing HTML Compliant Output
</h1>
<div class="warning deprecated">
This sample is not maintained anymore. Check out the <a href="https://ckeditor.com/docs/ckeditor4/latest/examples/index.html">brand new samples in CKEditor Examples</a>.
</div>
<div class="description">
<p>
This sample shows how to configure CKEditor to output valid
<a class="samples" href="http://www.w3.org/TR/html401/">HTML 4.01</a> code.
Traditional HTML elements like <code><b></code>,
<code><i></code>, and <code><font></code> are used in place of
<code><strong></code>, <code><em></code>, and CSS styles.
</p>
<p>
To add a CKEditor instance outputting legacy HTML 4.01 code, load the editor using a standard
JavaScript call, and define CKEditor features to use the HTML compliant elements and attributes.
</p>
<p>
A snippet of the configuration code can be seen below; check the source of this page for
full definition:
</p>
<pre class="samples">
CKEDITOR.replace( '<em>textarea_id</em>', {
coreStyles_bold: { element: 'b' },
coreStyles_italic: { element: 'i' },
fontSize_style: {
element: 'font',
attributes: { 'size': '#(size)' }
}
...
});</pre>
</div>
<form action="../../../samples/sample_posteddata.php" method="post">
<p>
<label for="editor1">
Editor 1:
</label>
<textarea cols="80" id="editor1" name="editor1" rows="10"><p>This is some <b>sample text</b>. You are using <a href="https://ckeditor.com/">CKEditor</a>.</p></textarea>
<script>
CKEDITOR.replace( 'editor1', {
/*
* Ensure that htmlwriter plugin, which is required for this sample, is loaded.
*/
extraPlugins: 'htmlwriter',
/*
* Style sheet for the contents
*/
contentsCss: 'body {color:#000; background-color#:FFF;}',
/*
* Simple HTML5 doctype
*/
docType: '<!DOCTYPE HTML>',
/*
* Allowed content rules which beside limiting allowed HTML
* will also take care of transforming styles to attributes
* (currently only for img - see transformation rules defined below).
*
* Read more: https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html
*/
allowedContent:
'h1 h2 h3 p pre[align]; ' +
'blockquote code kbd samp var del ins cite q b i u strike ul ol li hr table tbody tr td th caption; ' +
'img[!src,alt,align,width,height]; font[!face]; font[!family]; font[!color]; font[!size]; font{!background-color}; a[!href]; a[!name]',
/*
* Core styles.
*/
coreStyles_bold: { element: 'b' },
coreStyles_italic: { element: 'i' },
coreStyles_underline: { element: 'u' },
coreStyles_strike: { element: 'strike' },
/*
* Font face.
*/
// Define the way font elements will be applied to the document.
// The "font" element will be used.
font_style: {
element: 'font',
attributes: { 'face': '#(family)' }
},
/*
* Font sizes.
*/
fontSize_sizes: 'xx-small/1;x-small/2;small/3;medium/4;large/5;x-large/6;xx-large/7',
fontSize_style: {
element: 'font',
attributes: { 'size': '#(size)' }
},
/*
* Font colors.
*/
colorButton_foreStyle: {
element: 'font',
attributes: { 'color': '#(color)' }
},
colorButton_backStyle: {
element: 'font',
styles: { 'background-color': '#(color)' }
},
/*
* Styles combo.
*/
stylesSet: [
{ name: 'Computer Code', element: 'code' },
{ name: 'Keyboard Phrase', element: 'kbd' },
{ name: 'Sample Text', element: 'samp' },
{ name: 'Variable', element: 'var' },
{ name: 'Deleted Text', element: 'del' },
{ name: 'Inserted Text', element: 'ins' },
{ name: 'Cited Work', element: 'cite' },
{ name: 'Inline Quotation', element: 'q' }
],
on: {
pluginsLoaded: configureTransformations,
loaded: configureHtmlWriter
}
});
/*
* Add missing content transformations.
*/
function configureTransformations( evt ) {
var editor = evt.editor;
editor.dataProcessor.htmlFilter.addRules( {
attributes: {
style: function( value, element ) {
// Return #RGB for background and border colors
return CKEDITOR.tools.convertRgbToHex( value );
}
}
} );
// Default automatic content transformations do not yet take care of
// align attributes on blocks, so we need to add our own transformation rules.
function alignToAttribute( element ) {
if ( element.styles[ 'text-align' ] ) {
element.attributes.align = element.styles[ 'text-align' ];
delete element.styles[ 'text-align' ];
}
}
editor.filter.addTransformations( [
[ { element: 'p', right: alignToAttribute } ],
[ { element: 'h1', right: alignToAttribute } ],
[ { element: 'h2', right: alignToAttribute } ],
[ { element: 'h3', right: alignToAttribute } ],
[ { element: 'pre', right: alignToAttribute } ]
] );
}
/*
* Adjust the behavior of htmlWriter to make it output HTML like FCKeditor.
*/
function configureHtmlWriter( evt ) {
var editor = evt.editor,
dataProcessor = editor.dataProcessor;
// Out self closing tags the HTML4 way, like <br>.
dataProcessor.writer.selfClosingEnd = '>';
// Make output formatting behave similar to FCKeditor.
var dtd = CKEDITOR.dtd;
for ( var e in CKEDITOR.tools.extend( {}, dtd.$nonBodyContent, dtd.$block, dtd.$listItem, dtd.$tableContent ) ) {
dataProcessor.writer.setRules( e, {
indent: true,
breakBeforeOpen: true,
breakAfterOpen: false,
breakBeforeClose: !dtd[ e ][ '#' ],
breakAfterClose: true
});
}
}
</script>
</p>
<p>
<input type="submit" value="Submit">
</p>
</form>
<div id="footer">
<hr>
<p>
CKEditor - The text editor for the Internet - <a class="samples" href="https://ckeditor.com/">https://ckeditor.com</a>
</p>
<p id="copy">
Copyright © 2003-2021, <a class="samples" href="https://cksource.com/">CKSource</a> - Frederico
Knabben. All rights reserved.
</p>
</div>
</body>
</html>