CKSource

The architecture in CKEditor allows for very flexible customization of the contents of the dialogs without any need to change the source files.

In order to see some examples, please, take a look at the _samples/api_dialog.html file of the distribution.

This is another example, showing how to use some the options that existed in FCKeditor:

CKEDITOR.on( 'dialogDefinition', function( ev )
	{
		// Take the dialog name and its definition from the event data.
		var dialogName = ev.data.name;
		var dialogDefinition = ev.data.definition;

		// Check if the definition is from the dialog we're
		// interested on (the Link dialog).
		if ( dialogName == 'link' )
		{
			// FCKConfig.LinkDlgHideAdvanced = true
			dialogDefinition.removeContents( 'advanced' );

			// FCKConfig.LinkDlgHideTarget = true
			dialogDefinition.removeContents( 'target' );
/*
Enable this part only if you don't remove the 'target' tab in the previous block.

			// FCKConfig.DefaultLinkTarget = '_blank'
			// Get a reference to the "Target" tab.
			var targetTab = dialogDefinition.getContents( 'target' );
			// Set the default value for the URL field.
			var targetField = targetTab.get( 'linkTargetType' );
			targetField[ 'default' ] = '_blank';
*/
		}

		if ( dialogName == 'image' )
		{
			// FCKConfig.ImageDlgHideAdvanced = true	
			dialogDefinition.removeContents( 'advanced' );
			// FCKConfig.ImageDlgHideLink = true
			dialogDefinition.removeContents( 'Link' );
		}

		if ( dialogName == 'flash' )
		{
			// FCKConfig.FlashDlgHideAdvanced = true
			dialogDefinition.removeContents( 'advanced' );
		}

	});

By listening to the dialogDefinition event of CKEditor it's possible to customize the dialogs removing tabs or changing the default values.