Re: Mouse Lock

On Mon, Jun 20, 2011 at 4:53 PM, Adam Barth <w3c@adambarth.com> wrote:

> On Mon, Jun 20, 2011 at 3:30 PM, Tab Atkins Jr. <jackalmage@gmail.com>
> wrote:
> > On Mon, Jun 20, 2011 at 3:26 PM, Olli Pettay <Olli.Pettay@helsinki.fi>
> wrote:
> >> On 06/21/2011 01:08 AM, Tab Atkins Jr. wrote:
> >>> On Mon, Jun 20, 2011 at 3:03 PM, Olli Pettay<Olli.Pettay@helsinki.fi>
> >>>  wrote:
> >>>> On 06/21/2011 12:25 AM, Tab Atkins Jr. wrote:
> >>>>> The use-case is non-fullscreen games and similar, where you'd prefer
> >>>>> to lock the mouse as soon as the user clicks into the game.
>  Minecraft
> >>>>> is the first example that pops into my head that works like this -
> >>>>> it's windowed, and mouselocks you as soon as you click at it.
> >>>>
> >>>> And how would user unlock when some evil sites locks the mouse?
> >>>> Could you give some concrete example about
> >>>> " It's probably also useful to instruct the user how to release the
> >>>> lock."
> >>>
> >>> I'm assuming that the browser reserves some logical key (like Esc) for
> >>> releasing things like this, and communicates this in the overlay
> >>> message.
> >>
> >> And what if the web page moves focus to some browser window, so that ESC
> >> is fired there? Or what if the web page moves the window to be outside
> the
> >> screen so that user can't actually see the message how to
> >> unlock mouse?
> >
> > How is a webpage able to do either of those things?
>
> window.focus()
>

Seems like calling window.focus() would cancel mouselock. As I suspect would
changing the focus any other way like Alt-Tab, Cmd-Tab, etc.



>
> Adam
>