Canvas W3C/WHAT WG diff analysis

To be considered during Canvas Sub Group call on 14 APR 2014

Summary of features we will not be supporting in L1

Since we are removing these features from L1, but they still existing in L2, there is no need to file any bugs.

Summary of broad changes to W3C spec

Do we want to file bug reports on WHAT WG for any/all of these?

Features found only in WHAT WG we might consider in W3C spec

Items that exist in WHAT WG spec that do not exist in W3C and are not related to features we removed.

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#hit-regions

The control represented by a region (not in L2 either)

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#the-control-represented-by-a-region

Clear regions that cover the pixels

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#clear-regions-that-cover-the-pixels

Garbage collect the regions

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#garbage-collect-the-regions

addHitRegion()

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-addhitregion

Editorial bug

The region for a pixel

http://www.w3.org/html/wg/drafts/2dcontext/html5_canvas_CR/#the-region-for-a-pixel