Ckeditor4 Enhancedimage Plugin Image Added Event Or: How To Add Custom Class To Image

I'm playing around with CKEditor4 and I want to add a custom class to all images that I inserted. Unfortunately it seems as the dataFilter rule which works for adding classes on in

Solution 1:

If you just want to add a custom class for inserted images, you could easily listen to dialogHide event:

editor.on( 'dialogHide', function( evt ) {
  var widget = evt.data.widget;

  if ( widget && widget.name === 'image' && widget.element ) {
    widget.element.addClass( 'img-fluid' );
  }

} );