Features
The CKEditor integration with XWiki provides most of the standard editing features available in CKEditor and some additional features that are specific to XWiki.
Standard CKEditor Features
The standard features include: text formatting, lists, links, images, tables and many more. Check the CKEditor web site to see all the supported features. Note that by default XWiki doesn't enable all the features available in CKEditor because we want the users to focus on the content and leave the styling in the hands of the XWiki skin. This way all wiki pages will have a consistent style. For this we disable by default the features that are related to styles, such as text aligning, changing fonts or text color. If you really need these features you can enable them from the dedicated administration section.
XWiki Features
In order to integrate CKEditor with XWiki we had to modify some of the standard features, like links and images, and to add new features that only make sense in XWiki, like support for wiki macros.
Advanced Content Filter for XWiki Syntax
From the start you need to know that the content you edit with the CKEditor is saved in XWiki as wiki syntax. This means that the HTML produced by the CKEditor is converted at save time to wiki syntax. In order for this conversion to be possible we have to disable the CKEditor features that produce content that cannot be written in wiki syntax and to remove (filter) such content from the CKEditor output. We achieve this by configuring the Advanced Content Filter with rules for the XWiki Syntax.
Wiki Syntax Source
The Source button from the tool bar allows you to view and edit the underlying wiki syntax that is generated by the CKEditor.
Wiki Links
We modified the link dialog to add support for creating links to wiki pages and attachments. You can still create links to arbitrary web pages (URLs) and links to mail addresses though.
You can select the target page or attachment from the list of suggestions that you get as you type or from the tree picker. You can attach files to the edited page from the Upload tab that is visible when the link target type is set to Attachment, or you can drop them over the editing area and the editor will automatically create a link to the new attachment.
Image Attachments
We modified the image dialog to add support for inserting images that are attached to wiki pages. You can still insert external image though.
You can select the image attachment from the list of suggestions that you get as you type or from the tree picker. You can attach new images to the edited page from the Upload tab or you can simply drop them over the editing area and the editor will automatically upload and insert them.