[Bug 20218] New: Extend pointer events to support raw trackpad data

https://www.w3.org/Bugs/Public/show_bug.cgi?id=20218

            Bug ID: 20218
           Summary: Extend pointer events to support raw trackpad data
    Classification: Unclassified
           Product: PointerEventsWG
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Pointer Events specification
          Assignee: jrossi@microsoft.com
          Reporter: rbyers@chromium.org
        QA Contact: dave.null@w3.org
                CC: public-pointer-events-bugzilla@w3.org

In adition to mice, stylii and touch screens, I've heard requests for an API
web sites could use to get detailed touchpad data (rather than assuming they're
identical to a mouse).  In particular, when the hardware and OS supports it, it
should be possible to receive co-ordinates for all the touch points on a
trackpad.

The most interesting difference here is that the co-ordinate are not directly
connected with screen co-ordinates.  I could imagine having an additional
pointer type where pointerdown corresponded to putting a finger on the
trackpad, and there were additional fields for trackpad co-ordinates (perhaps
in some fixed range like [0,100]).

I don't think it's critical that we need to flush out the details of this
scenario now, but I'd like to keep it in mind as we define potential
extensibility points.

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Received on Monday, 3 December 2012 22:20:23 UTC