TinyMCE

 

https://memocarilog.info/wordpress/6227

 http://www.devsumo.com/technotes/2014/08/tinymce-4-enabling-and-disabling-toolbar-buttons/

https://www.tinymce.com/docs/advanced/creating-a-custom-button/#basicbutton

https://www.tinymce.com/docs/advanced/migration-guide-from-3.x/

 

 

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