Bug 49102

Summary:	Stop abusing the style system in order to get RenderLayers for things that need to be composited
Product:	WebKit	Reporter:	Simon Fraser (smfr) <simon.fraser>
Component:	Layout and Rendering	Assignee:	Simon Fraser (smfr) <simon.fraser>
Status:	NEW
Severity:	Normal	CC:	ahmad.saleem792, simon.fraser, zalan
Priority:	P2
Version:	528+ (Nightly build)
Hardware:	All
OS:	OS X 10.5

Simon Fraser (smfr)

Reported 2010-11-05 15:11:51 PDT

We currently make use of synthetic style changes, and code in RenderObject::adjustStyleDifference() to force RenderLayers to get created for elements that need them for compositing (iframes, canvas, plugins). This has caused problems (see patch in bug 44877). We should instead just make RenderLayers directly somehow.

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Ahmad Saleem

Comment 1 2023-10-07 18:29:10 PDT

@Simon - Is this bug still applicable?

Simon Fraser (smfr)

Comment 2 2023-10-09 09:36:02 PDT

We do still do this via invalidateStyleAndLayerComposition(). Doesn't seem particularly bad, though.

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