HOWTO - the button for starting the source in ckeditor with another button that is outside the editor

Question

I have a text box that behaves like a ckeditor. The editor has a button for viewing content as a source / html. I have an enter button above the text box to view the contents of textarea as html. Means that when you click the preview button will cause a click on the ckeditor button. Can someone help me? ..

Answer 1

The shortest answer:

editor.execCommand( 'source' );