Fix keybinding issue for FF

[Darshan-upadhyay1110]

• Before this patch keybindings were not working on start slide show presentation
• we do added event listener with capture phase so the keydown will not get override by other key binding
• start window needs to have the the top priority for arrow key listeners

This fixes an issue in Firefox where arrow keys would not reliably trigger slide changes when presenting in window mode.

Change-Id: I604c1df0ace918d4bda4877390e92837b9b058d9

• Resolves: #
• Target version: main

Summary

TODO

• ...

Checklist

• I have run make prettier-write and formatted the code.
• All commits have Change-Id
• I have run tests with make check
• I have issued make run and manually verified that everything looks okay
• Documentation (manuals or wiki) has been updated or is not required

[eszkadev]

it works but I have other question: where is slideshow navigation panel with buttons on Firefox? :)
Possibly that is our root cause of that bug? (so global handler is better, but still we should fix visibility of a navigation panel)

[Darshan-upadhyay1110]

it works but I have other question: where is slideshow navigation panel with buttons on Firefox? :) Possibly that is our root cause of that bug? (so global handler is better, but still we should fix visibility of a navigation panel)

Hi @eszkadev, the panel is present, but there is a timeout. After a period of inactivity, it gets hidden automatically. This behavior is the same in Chrome as well, so it is likely not specific to this case.

Screencast.from.2026-01-05.10-20-52.webm

[eszkadev]

it works but I have other question: where is slideshow navigation panel with buttons on Firefox? :) Possibly that is our root cause of that bug? (so global handler is better, but still we should fix visibility of a navigation panel)

Hi @eszkadev, the panel is present, but there is a timeout. After a period of inactivity, it gets hidden automatically. This behavior is the same in Chrome as well, so it is likely not specific to this case.

I know about timeout. But in my case it was never appearing

[Darshan-upadhyay1110]

it works but I have other question: where is slideshow navigation panel with buttons on Firefox? :) Possibly that is our root cause of that bug? (so global handler is better, but still we should fix visibility of a navigation panel)

Hi @eszkadev, the panel is present, but there is a timeout. After a period of inactivity, it gets hidden automatically. This behavior is the same in Chrome as well, so it is likely not specific to this case.

I know about timeout. But in my case it was never appearing

that is strange let me try to reproduce that. I can see the options on start in window slide show...

[Darshan-upadhyay1110]

@eszkadev it's working good in my case. Did tested with many files and 2 different browsers...

[eszkadev]

ok, it was by configuration: I used HTTP integrator server and HTTPS-only mode in FF. After allowing HTTP it worked fine and it's unrelated to this PR. thanks, and sorry for noise :)