761992 - Hardware key is not responsive before touching the screen

Status: RESOLVED INVALID

(Firefox OS Graveyard :: General, defect)

Description

[Tim Guan-tin Chien [:timdream] (please needinfo)]

This is because the focused frame of b2g, when boot up, is the XUL ChromeWindow, and the key event never get to the content window. Home key is the exception here since it is being redirect whatsoever by bug 755648.

We need to take the focus to |content.document.documentElement| when loading the initial content page. Fix should be easy if one knows how to do it.

Comment 1

[Vivien Nicolas (:vingtetun) (:21) - (NOT reading bugmails, needinfo? please)]

Listen 'ContentStart' and then use the focusedElement property of the focus manager to put the focus there.

Comment 2

[Vivien Nicolas (:vingtetun) (:21) - (NOT reading bugmails, needinfo? please)]

I will provide a patch if you don't beat me to it :)

Comment 3

[Tim Guan-tin Chien [:timdream] (please needinfo)]

https://github.com/mozilla-b2g/gaia/pull/1627/files#L10R292

I kind of workaround this by asking Lock Screen on System app to take focus when it is loaded.

I wonder what would Desktop Firefox do when it is boot up with one start-up page? Does it gives the focus to that page even if it does not ask for it? If so we should match the behavior. If not this bug can be considered RESOLVED INVALID.

Comment 4

[Tim Guan-tin Chien [:timdream] (please needinfo)]

This is issue is since invalid as we have changed the way hardware keys are dispatched to the System app.