Revision as of 19:39, 19 January 2010

The CKEditor jQuery Adapter provides deep integration into the jQuery JavaScript Library of the CKEditor, using native library's features.

Creating editor instances

To create editor instances, other than the usual CKEditor core script, you need to load the jQuery Adapter file in the page, in the following order:

<script type="text/javascript" src="/ckeditor/ckeditor.js"></script>
<script type="text/javascript" src="/ckeditor/adapters/jquery.js"></script>

At this point, any textarea, p or div element can be transformed into a rich text editor by simply using the ckeditor() method:

$( 'textarea.editor' ).ckeditor();

jQuery chaining can also be used:

$( '.section-x' )
    .find( 'textarea.editor' )
        .ckeditor()
    .end()
    .find( 'a' )
        .addClass( 'mylink' )
    .end();

The ckeditor() is the main method in the jQuery adapter. It accepts two optional parameters:

* A callback function to be execute when the editor is ready.
* Configuration options specific to the created editor instance.

The configurations options are passed through a simple object containing properties, each one related to a specific editor setting.</p>

$('.jquery_ckeditor')
    .ckeditor( function() { /* callback code */ }, { skin : 'office2003' } );
    .ckeditor( callback2 );

Code above won't create 2 editors - it will discover that one is already during creation and wait with the second callback. Each of those callbacks will be executed in context of the CKEDITOR.editor object (so "this" will be the editor) and the DOM element object will be passed as parameter.

Code interaction with editor instances

As soon as an editor instance is ready (after the above callback call), the ckeditorGet() method can then be used to retrieve a CKEDITOR.editor object that represents an editor instance. For example:

var editor = $('.jquery_ckeditor').ckeditorGet();
alert( editor.checkDirty() );

Because setting and retrieving the editor data is a common operation, the jQuery Adapter also provides the dedicated val() method:

// Get the editor data.
var data = $( 'textarea.editor' ).val();
// Set the editor data.
$( 'textarea.editor' ).val( 'my new content' );

This feature can be disabled by setting CKEDITOR.config.jqueryOverrideVal to false, before loading the adapter code.

For textareas, the editor will automatically return it's content back to the form when it is submitted. CKEditor also works with the official jQuery Form Plugin for AJAX based forms. It doesn't require anything from the developer side.

Events handling

Although CKEditor uses its own event system, there are four main events which we're exposing to the jQuery event system. All events use the event namespace, which is simply named ".ckeditor".

The following events are available:

* instanceReady.ckeditor: fired when the editor is created, but before any callback being passed to the ckeditor() method.
* setData.ckeditor: fired when data is set into the editor.
* getData.ckeditor: fired when data is fetched from the editor. The current editor data is also passed in the arguments.
* destroy.ckeditor: fired when the editor gets destroyed. It can be used, for example, to execute some cleanup on the page.

The editor instance is always passed as the first data argument for the listener. Both getData and setData are often used internally so listening to them should be done with care.

jQuery events DO bubble up through the DOM, so they can be listened selectively on certain parts of the document.