- From: Jet Villegas W3C <w3c@junglecode.net>
- Date: Wed, 1 May 2013 22:11:31 -0700
- To: Doug Schepers <schepers@w3.org>
- Cc: public-pointer-events@w3.org, public-fx@w3.org, www-style@w3.org
- Message-ID: <CAP82YM5j=1y7Cv0u4HKCq4+Scin9Lz3ARZJzQhxc_LfrjANPEw@mail.gmail.com>
I've started hacking this up for Gecko[1]. The DOMPoint IDL source currently looks like this: [Constructor(optional float x = 0, optional float y = 0),Pref="layout.css.dompoint.enabled"] dictionary DOMPoint { float x = 0; float y = 0; }; I'd like to ratify the IDL in the appropriate spec before moving on to the coord-space-conversion methods. Do we have consensus? [1] https://bugzilla.mozilla.org/show_bug.cgi?id=850805 --Jet On Tue, Jan 29, 2013 at 9:28 AM, Doug Schepers <schepers@w3.org> wrote: > Hi, folks- > > When elements are transformed (shifted X/y through translate, larger or > smaller through scale, etc.) using CSS transforms or SVG, dealing with > pointer events becomes more complicated and unintuitive... things just > aren't where they appear to be. > > This leads to all sorts of confusion for authors in positioning things... > dragging, repositioning, or creating elements based on pointer position. > (To a lesser extent, this is a general problem with positioning relative to > transformed elements, but nesting context takes care of most > non-pointer-position cases.) > > Jonathan Watt (Mozilla) has a handy script library [1] that helps authors > solve this in SVG, but unless someone knows about that script, it is > frustrating. I think this should be solved in a spec, perhaps as a method > to get the relative transformed coordinates in the appropriate coordinate > space. > > I started to address this in DOM3 Events [2][3], but we decided to defer > it, or to address it in CSSOM or the CSS Transforms spec. > > I'm raising this here to ask where it is most appropriate to address this: > the Pointer Events v2 spec (still in the future), the CSS Transforms spec, > or the CSSOM spec? > > [1] http://jwatt.org/svg/tmp/**mouse-relative-positioning.svg<http://jwatt.org/svg/tmp/mouse-relative-positioning.svg> > [2] http://www.w3.org/2009/09/16-**webapps-minutes.html#item09<http://www.w3.org/2009/09/16-webapps-minutes.html#item09> > [3] http://www.w3.org/2010/10/13-**webapps-minutes.html#item01<http://www.w3.org/2010/10/13-webapps-minutes.html#item01> > > Regards- > -Doug > >
Received on Thursday, 2 May 2013 05:12:10 UTC