Cannot use the keyboard to "click" on the toolbar buttons when Page Fit is used

[calixteman]

This bug is so weird that I wonder if I'm doing something wrong...
That said here's a STR:

• open a pdf and set Page Fit;
• with the keyboard, move the focus on a toolbar button, e.g. the freetext one;
• press Enter key

nothing is happening.
If I change to Automatic Zoom then everything is ok.

[calixteman]

We should add a specific case when Enter is pressed and the activeElement is a button, link, ...

pdf.js/web/app.js

Line 2960 in 40d6b0e

function webViewerKeyDown(evt) {

[Snuffleupagus]

I've not tested it, but maybe changing

pdf.js/web/app.js

Line 3254 in 40d6b0e

(evt.keyCode === 32 && curElementTagName !== "BUTTON")

into something like the following might work?

((evt.keyCode === 13 || evt.keyCode === 32) && curElementTagName !== "BUTTON")