Bug 240105 – webview can not scroll when using WebKit2UseRemoteLayerTreeDrawingArea

• Status: NEW
• Component: Compositing

webview can not scroll when using WebKit2UseRemoteLayerTreeDrawingArea


RemoteLayerTreeDrawingArea
    bool usesDelegatedScrolling() const override { return true; }
    bool usesDelegatedPageScaling() const override { return true; }

usesDelegatedScrolling return true, but ui side not impl scrollview and scroll function

==================================================================================

void PageClientImpl::requestScroll(const FloatPoint& scrollPosition, const IntPoint& scrollOrigin, ScrollIsAnimated)
{
}

WebCore::FloatPoint PageClientImpl::viewScrollPosition()
{
    return { };
}

==================================================================================
so the function "scrollingTree().setNeedsApplyLayerPositionsAfterCommit();" is not called when scroll event fired

[Simon Fraser (smfr)]

Yes, this is not a supported configuration right now.

Any plans for supporting RemoteLayerTreeDrawing in macos?

(In reply to Simon Fraser (smfr) from comment #1)
> Yes, this is not a supported configuration right now.

Any plans for supporting RemoteLayerTreeDrawing in macos?

[Simon Fraser (smfr)]

It requires a large amount of refactoring work, so maybe, at some point. Why is this of interest to you?

(In reply to Simon Fraser (smfr) from comment #4)
> It requires a large amount of refactoring work, so maybe, at some point. Why
> is this of interest to you?

I would like to add a native video layer to some node, such as a matel layer, RemoteLayerTreeDrawingArea provide the whole layer tree for me to do this. if RemoteLayerTreeDrawingArea is not supported right now, do you have any suggestions about it?

[Radar WebKit Bug Importer]

<rdar://problem/93147780>