[webkit-dev] CSS Masking in WebKit

Dirk Schulze dschulze at adobe.com
Wed Aug 29 15:41:47 PDT 2012

Hi WebKit folks,

The CSS WG and SVG WG agreed to work on a CSS Masking specification [1]. Basically the spec aims to specify the behavior of -webkit-mask/-webkit-box-mask on WebKit browsers and SVG Mask/ SVG ClipPath on Firefox.

I would like to implement the specification in the next weeks and months. Since masking and clipping are basic operations that use the existing capabilities in all graphic libraries, and sine we are using it heavily internally in WebKit already, I do not plan to introduce a new compiler flag. 

However, some features will be covered by existing compiler flags like SVG Mask and SVG ClipPath, allowing to disable these parts.

I created a master bug that covers the work [2].


[1] http://dvcs.w3.org/hg/FXTF/raw-file/tip/masking/index.html
[2] https://bugs.webkit.org/show_bug.cgi?id=95389

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