如何使用Javascript和JQuery自动选择文本（单击并按住鼠标），我的框架是用Java编写的？

My application has a feature where in the user selects a piece on text by clicking and holding mouse on a a reader page, releasing the mouse later shows a menu to user where he select Highligh option. Text select is highlighted in this way. Can you please help on how to automate this using selenium(java)My application has a feature where in the user