[whatwg] Clipping text in in canvas

David Dailey ddailey at zoominternet.net
Sun Sep 15 09:04:09 PDT 2013

Last I checked applying a clipPath to text in SVG works consistently across
browsers, and there it remains accessible: to screen readers, indexing,
searching, drag-to-select, etc. Why would one want a bunch of pixels that
resemble text?

Just saying,

-----Original Message-----
From: whatwg-bounces at lists.whatwg.org
[mailto:whatwg-bounces at lists.whatwg.org] On Behalf Of Jasper St. Pierre
Sent: Sunday, September 15, 2013 11:38 AM
To: whatwg at whatwg.org
Subject: [whatwg] Clipping text in in canvas

The canvas specification maintains:

    These shapes are painted without affecting the current path, and are
subject to shadow effects, global alpha, the clipping region, and global
composition operators. [0]

But no browsers I tested actually implement the "clipping region" part.
Should this be removed for backwards compatibility reasons? Should we
introduce a new method of clipping text be introduced, or should we just
require users who want to draw clipped text to draw to a scratch canvas and
use drawImage to copy the pixels?


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