799437 - navigator.battery doesn't work when Nightly is built on OSX 10.8.2

Status: RESOLVED INVALID

(Core :: DOM: Device Interfaces, defect)

Description

[maligree]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/536.26.14 (KHTML, like Gecko) Version/6.0.1 Safari/536.26.14

Steps to reproduce:

Some time ago, I built Firefox from mozilla-central and noticed some battery-related mochitests failing. I got distracted and never gave it much thought, though. So today I built revision aa5e3b445810 and noticed that navigator.battery indeed doesn't work properly for me. 

Building on OS X 10.8.2 (via make -f client.mk), no build options except for --enable-debug.


Actual results:

When on AC power, navigator.battery.charging returns false.
Also, navigator.battery.chargingTime returns Infinite.


Expected results:

Expecting navigator.battery.charging to return true, and navigator.battery.chargingTime to return 0 (battery was fully charged).

This does happen with a built-by-mozilla (i.e. downloaded) version of Nightly, so it seems that something gets lost during my build.

Comment 1

[maligree]

If you need more insight, I'm absolutely comfortable doing some debugging, but not yet that familiar with the codebase.

I tried to set a breakpoint at mozilla::dom::battery::BatteryManager::GetCharging(bool*) to get any insight, but it doesn't get triggered on navigator.battery.charging.

Comment 2

[Anne (:annevk)]

We disabled this API in bug 1313580.