W3C home > Mailing lists > Public > public-apa@w3.org > February 2016

Pointer Lock API

From: Léonie Watson <tink@tink.uk>
Date: Tue, 2 Feb 2016 15:38:28 -0000
To: <public-apa@w3.org>
Message-ID: <4ec201d15dcf$c683e0c0$538ba240$@tink.uk>
I had an unofficial action to look at the Pointer Lock spec [1]. 

Pointer Lock is an API for capturing mouse movement (not position). When
mouse movement is detected and a lock is initiated, the visible cursor is
removed and mouse movements are used to control the environment.

One of the use cases given in the spec is control of viewport orientation
within a first person game environment. Another is the rotation of views
within a 3D modelling environment.

The spec requires that a default mechanism for disengaging from the pointer
lock is made available. The escape key is the recommended mechanism, which
appears to address any concerns about mouse trapping.

The pointer lock interaction closely resembles the way the mouse is used to
control the viewport with screen magnification though. For example, if the
mouse is locked into controlling the orientation of a viewport, it cannot
presumably be used to control which part of the viewport currently has
magnifier focus.

I think the escape mechanism should be enough to permit magnifier users to
switch in/out of the lock when nescessary. Thoughts welcome though.

[1] https://w3c.github.io/pointerlock/

@LeonieWatson tink.uk Carpe diem
Received on Tuesday, 2 February 2016 15:38:55 UTC

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