1160660 - mozLockOrientation not worked at app launch

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Gaia::System::Window Mgmt, defect)

Description

[aoi]

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0
Build ID: 20150424004008

Steps to reproduce:

Firefox Developer Edition
Firefox OS v3.0 Simulator

prereq) call screen.mozLockOrientation at DOMContentLoaded event.

1)  launch app.
2) click rotate button.



Actual results:

actual results: app don't rotate


Expected results:

expected results: app do rotate

Comment 1

[aoi]

Call mozLockOrientation at DOMContentLoaded event.
But, system app unlock orientation.
see https://github.com/mozilla-b2g/gaia/blob/b320ab38f5615d8e26db304f6188dc87fd4f307b/apps/system/js/app_window.js#L1660
AppWindow.prototype.lockOrientation was called at app opening animation end.

Comment 2

[Sotaro Ikeda [:sotaro]]

[Blocking Requested - why for this release]:

Comment 3

[Gregor Wagner [:gwagner]]

Alive, can you take a look here?

Comment 4

[(inactive after 6/18) Alive Kuo [:alive]]

I believe system has nothing to do here before we have bug 1043102.

The default behavior of any app who does not declare any orientation is 'unlock', and system usually does this when the app opening transition is finished (otherwise severe performance issue will occur.)
If an app chooses to lock the orientation before it's loaded, it's very likely to happen before the opening transition is done. And system won't know is locking the orientation so it just unlocks again to reflect the desired orientation.

Comment 5

[BMO Automation]

Firefox OS is not being worked on