1132417 - Capturing volume-up button press does not work

Status: RESOLVED WONTFIX

(Firefox for Android Graveyard :: Web Apps (PWAs), defect)

Description

[Felix E. Klee]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0
Build ID: 20150211004833

Steps to reproduce:

On Firefox OS 2.2, it is possible to capture volume button presses from an app. To see if that also works in Firefox for Android, I installed the latest nightly:

https://ftp.mozilla.org/pub/mozilla.org/mobile/nightly/latest-mozilla-central-android-api-11/fennec-38.0a1.multi.android-arm.apk

From Firefox Developer Edition on my PC, I remote debugged my privileged app Trigger:

https://marketplace.firefox.com/app/trigger

Before pressing the volume-up button, I ran in the console:

    (function () {
        'use strict';

        var keyDownHandler = function (evt) {
            if (evt.key === 'VolumeDown') {
                console.log('down');
            } else if (evt.key === 'VolumeUp') {
                console.log('up');
            }
            evt.preventDefault();
        };

        window.addEventListener('keydown', keyDownHandler);
    }());


Actual results:

Pressing the volume-up button increased the system volume. The button press was not registered by the above code, i.e. there was no output on the console.


Expected results:

'up' output to the console.

Comment 1

[Felix E. Klee]

I found out that capturing volume buttons doesn't work anymore with Gecko 39 on Firefox OS (https://bugzilla.mozilla.org/show_bug.cgi?id=1138745). It works with version 37, though.

So I installed fennec-37.0a2.multi.android-arm.apk on my Android device. However, capturing the volume buttons still doesn't work.

Comment 2

[Felix E. Klee]

Note that on Android volume buttons have different key codes:

https://bugzilla.mozilla.org/show_bug.cgi?id=1138918

Comment 3

[Myk Melez [:myk] [@mykmelez]]

Per bug 1235869, we're going to disable the Android web runtime, so we won't fix this bug in it.

(This is part of a bulk resolution of bugs in the Firefox for Android::Web Apps component, from which I attempted to exclude bugs that are not specific to the runtime, but it's possible that I included one accidentally.  If so, I'm sorry, and please reopen the bug!)