[webkit-qt] Qt5: Dependencies to private Qt APIs

[Kenneth Rohde Christiansen]

I'm fine with that. We aim, anyway, for a first release as part of the Qt5
release.

Kenneth

On Wed, Dec 14, 2011 at 2:10 PM, Simon Hausmann <simon.hausmann at nokia.com>wrote:

> Hi,
>
> In the past we had a strict rule to not use any private APIs from Qt (4),
> which allowed us to make separate releases and support building against
> multiple Qt versions at the same time without too much #ifdeffery.
>
> With the builds against Qt 5 we are dealing with a platform that is vastly
> different to what Qt 4 was to WebKit: The features we rely on are young and
> subject to change.
>
> An example of this is our intent of using the QML flickable component for
> the
> WebView to allow for user interaction that is consistent with the rest of
> QML.
> The flickable as C++ component (the way we need to use it) however is only
> private API in Qt 5. Similarly there may be functionality from the Qt 5
> scene
> graph that we need in order to implement proper rendering which may only be
> available to us as private APIs.
>
> (A third example is the use of Qt's copy of V8, which is also technically
> private API)
>
> So unlike with Qt 4, this time in order to achieve some of our goals we may
> have to resort to depending on functionality in Qt 5 that is private at the
> moment. A result of such a dependency is that we more or less loose the
> ability to release independently, at least not without risking major
> maintenance overhead when it comes to supporting multiple versions of Qt 5
> at
> the same time.
>
> I suggest that we tie ourselves back to Qt 5 releases and allow the
> (controlled) use of private Qt 5 APIs for the time being, in order to
> achieve
> a perfect QML and scene graph integration. When these features stabilize
> and
> at some point become available through public APIs, then we should consider
> resorting to the old rule.
>
>
> What do you guys think?
>
>
> Simon
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> webkit-qt at lists.webkit.org
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>



-- 
Kenneth Rohde Christiansen
Senior Engineer
Application and Service Frameworks, Nokia Danmark A/S
Phone  +45 4093 0598 / E-mail kenneth.christiansen at gmail.com

http://codeposts.blogspot.com ﹆﹆﹆
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