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Re: Mouse Lock

From: Adam Barth <w3c@adambarth.com>
Date: Sat, 18 Jun 2011 23:38:02 -0700
Message-ID: <BANLkTimi6SobLWS0CFP_sqtrwGVd3WDX_Q@mail.gmail.com>
To: Vincent Scheib <scheib@google.com>
Cc: Brandon Andrews <warcraftthreeft@sbcglobal.net>, "Gregg Tavares (wrk)" <gman@google.com>, Glenn Maynard <glenn@zewt.org>, Charles Pritchard <chuck@jumis.com>, Kenneth Russell <kbr@google.com>, robert@ocallahan.org, public-webapps@w3.org
I'm sorry that I didn't follow the earlier thread.  What is the
security model for mouse lock?  (Please feel free to point me to a
message in the archive if this has already been discussed.)

Thanks,
Adam


On Thu, Jun 16, 2011 at 3:21 PM, Vincent Scheib <scheib@google.com> wrote:
> [Building on the "Mouse Capture for Canvas"
> thread: http://lists.w3.org/Archives/Public/public-webapps/2011JanMar/thread.html#msg437 ]
> I'm working on an implementation of mouse lock in Chrome, and would
> appreciate collaboration on refinement of the spec proposal. Hopefully
> webapps is willing to pick up this spec work? I'm up for helping write the
> draft.
> Some updates from Sirisian's Comment 12 on the w3 bug
> (http://www.w3.org/Bugs/Public/show_bug.cgi?id=9557#c12):
> - We shouldn't need events for success/failure to obtain lock, those can be
> callbacks similar to geolocation API:
> (http://dev.w3.org/geo/api/spec-source.html#geolocation_interface).
>
> My short summary is then:
> - 2 new methods on an element to enter and exit mouse lock. Two callbacks on
> the entering call provide notification of success or failure.
> - Mousemove event gains .deltaX .deltaY members, always valid, not just
> during mouse lock.
> - Elements have an event to detect when mouseLock is lost.
> Example
> x = document.getElementById("x");
> x.addEventListener("mousemove", mouseMove);
> x.addEventListener("mouseLockLost", mouseLockLost);
> x.lockMouse(
>   function() { console.log("Locked."); },
>   function() { console.log("Lock rejected."); } );
> function mouseMove(e) { console.log(e.deltaX + ", " + e.deltaY); }
> function mouseLockLost(e) { console.log("Lost lock."); }
>
Received on Sunday, 19 June 2011 06:39:00 GMT

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