Tooltip for long name file/directory

Is it possible to add a tooltip to the file name? Because the file and folder names are too long, I use CSS so that they can display properly.
```
.browser-widget .content ul:not(.ui-menu) li span{
overflow: hidden;
max-height: 4.3em;
display: block;
}
```

But if there is a tooltip displaying the full file name, it would be better