Commit e389ea6a authored by Timothy Nikkel's avatar Timothy Nikkel
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Bug 1728702. Use IsRootContentDocumentCrossProcess in... 

Bug 1728702. Use IsRootContentDocumentCrossProcess in ScrollFrameHelper::AppendScrollPartsTo. r=botond

This code clearly only wants to handle the case where there is zooming and the scrollbar sizes have a bound (screen size or maximum window size from OS).

Differential Revision: https://phabricator.services.mozilla.com/D124284
parent 9d236f87

layout/generic/nsGfxScrollFrame.cpp

+2 −2
Original line number Diff line number Diff line
@@ -3395,14 +3395,14 @@ void ScrollFrameHelper::AppendScrollPartsTo(nsDisplayListBuilder* aBuilder, 
    // this for the root scrollframe of the root content document, which is

    // zoomable, and where the scrollbar sizes are bounded by the widget.

    const nsRect visible =

        mIsRoot && mOuter->PresContext()->IsRootContentDocument()

        mIsRoot && mOuter->PresContext()->IsRootContentDocumentCrossProcess()

            ? scrollParts[i]->InkOverflowRectRelativeToParent()

            : aBuilder->GetVisibleRect();

    if (visible.IsEmpty()) {

      continue;

    }

    const nsRect dirty =

        mIsRoot && mOuter->PresContext()->IsRootContentDocument()

        mIsRoot && mOuter->PresContext()->IsRootContentDocumentCrossProcess()

            ? scrollParts[i]->InkOverflowRectRelativeToParent()

            : aBuilder->GetDirtyRect();