[webkit-dev] window.internals abuse

Ryosuke Niwa rniwa at webkit.org
Wed Mar 13 10:04:08 PDT 2013

On Wed, Mar 13, 2013 at 9:59 AM, Simon Fraser <simon.fraser at apple.com>wrote:

> On Mar 13, 2013, at 9:48 AM, Ryosuke Niwa <rniwa at webkit.org> wrote:
> On Wed, Mar 13, 2013 at 9:42 AM, Simon Fraser <simon.fraser at apple.com>wrote:
>> https://bugs.webkit.org/show_bug.cgi?id=80046 (landed in
>> http://trac.webkit.org/changeset/114081) added
>> internals. setBackgroundBlurOnNode().
>> I consider this to be abuse of the Internals object. As shown by the
>> location of the files (Source/WebCore/*testing*/Internals.*), the
>> Internals interface is intended for testing, not adding API to toggle
>> features in WebCore for non-test code.
> Sorry, I don't follow. setBackgroundBlurOnNode appears to be only called
> in a layout test as far as I read the patch.  Where is this function called
> for non-testing purposes?
> Background blur (or background filters in general) are not a web-exposed
> feature, so it seems odd that Internals has a switch for some
> non-web-exposed feature that is only implemented by one port. It feels like
> this was something added for a UI feature in Chromium, in which case
> Internals isn't an appropriate way to toggle it.

What is the rule of thumb here?  Are you specifically objecting to testing
features that are not Web-exposed?  e.g. would you object to testing
features only available in dashboard?

- R. Niwa
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