Implementing tooltips for all widgets

I noticed that ToggleButtons have tooltips implemented where if hovering over the button a tooltip appears with some text specified in:

widgets.Button(description=‘Button’, width=‘10%’, tooltip=‘This is the tooltip’)

which results in:

Now this is quite useful because it gives the ability to provide more info than possible in text on the button if the width is small as in the above example.

It seems to me this is a useful feature on a number of other widgets aswell, e.g. the Text widget, Checkbox widget, etc. Often not a lot of textual information can be given through the ‘description’ attribute without making the widget excessively long:

widgets.Text(description=‘Enter the name of this Text field’)

I have a couple of questions:

1. Is there a specific reason why tooltips aren’t implemented on all widgets by default (it could ofcourse be disabled by default, e.g. using tooltip=None?
2. Are the devs and community at all interested in such a feature?
3. I would like to see this implemented and willing to do some work to get it done but i need some pointers. I made some attempts at implementing a tooltip on the label of a TextField. Unfortunately, it is not working at all which is probably the result of my limited understanding of Javascript. Is my approach at all correct? If not, how should i approach this?

[hainm]

I am +1 for adding tooltip for Text and TextArea. Sometimes I don’t want to use Description or Label to make the GUI nicer.

[deeplook]

Anything one can do to make this happen more quickly?