Bug 59046 – With a non-1 page scale, scrolling to reveal selection fails

• Component: New Bugs
• Status: RESOLVED FIXED

With a non-1 page scale, scrolling to reveal selection fails

<rdar://problem/9095366>

Created attachment 90474 [details]
Patch

[Maciej Stachowiak]

Comment on attachment 90474 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=90474&action=review

r=me

> Source/WebCore/rendering/RenderObject.cpp:1164
>          if (!v->hasLayer() || !v->layer()->isComposited() || v->layer()->backing()->paintingGoesToWindow()) {
> -            v->repaintViewRectangle(r, immediate);
> +            IntRect repaintRectangle = r;
> +            if (v->hasLayer() &&  v->layer()->transform() && v->layer()->isComposited() && v->layer()->backing()->paintingGoesToWindow())
> +                repaintRectangle = v->layer()->transform()->mapRect(r);
> +            v->repaintViewRectangle(repaintRectangle, immediate);

The logic here is a bit squarely. You test some conditions and then similar or opposite looking ones right inside that if. I wonder if this can be refactored to be more clear, though I have no specific suggestions.

(In reply to comment #3)
> (From update of attachment 90474 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=90474&action=review
> 
> r=me
> 
> > Source/WebCore/rendering/RenderObject.cpp:1164
> >          if (!v->hasLayer() || !v->layer()->isComposited() || v->layer()->backing()->paintingGoesToWindow()) {
> > -            v->repaintViewRectangle(r, immediate);
> > +            IntRect repaintRectangle = r;
> > +            if (v->hasLayer() &&  v->layer()->transform() && v->layer()->isComposited() && v->layer()->backing()->paintingGoesToWindow())
> > +                repaintRectangle = v->layer()->transform()->mapRect(r);
> > +            v->repaintViewRectangle(repaintRectangle, immediate);
> 
> The logic here is a bit squarely. You test some conditions and then similar or opposite looking ones right inside that if. I wonder if this can be refactored to be more clear, though I have no specific suggestions.

I can (and will) remove the “ &&  v->layer()->backing()->paintingGoesToWindow()” part, because it’s redundant, and add a local boolean variable for v->hasLayer() && v->layer()->isComposited()

Fixed in r84454. <http://trac.webkit.org/changeset/84454>

[WebKit Review Bot]

http://trac.webkit.org/changeset/84454 might have broken Qt Linux Release
The following tests are not passing:
fast/transforms/selection-bounds-in-transformed-view.html