Pdf.Js Express - Mouse Hover Event Listener

We are using Pdf.JS Express Viewer. We are able to catch doubleclick event via

 ViewerInstance.Core.documentViewer.addEventListener("dblClick",handleDblClick);

But we need also mouse hover events on each word.

This library is a kind of advanced version of Mozillas' Pdf.Js that wraps around that library and adding more features.

So if we can get doubleClicked word, i thought it is possible to catch events on mouse hover on words.

I need a way to catch these events along with hovered word Itself. Thank you for your helps

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