int Element::offsetHeight()
{
document().updateLayout();
if (RenderBoxModelObject* renderer = renderBoxModelObject())
return renderer->pixelSnappedOffsetHeight();
return 0;
}
int Element::offsetLeft()
{
document().updateLayout();
if (RenderBoxModelObject* renderer = renderBoxModelObject())
return renderer->offsetLeft();
return 0;
}
PassRefPtr<ClientRect> Element::getBoundingClientRect()
{
document().updateLayout();
Vector<FloatQuad> quads;
// Get the bounding rectangle from the box model.
if (renderBoxModelObject())
renderBoxModelObject()->absoluteQuads(quads);
if (quads.isEmpty())
return ClientRect::create();
FloatRect result = quads[0].boundingBox();
for (size_t i = 1; i < quads.size(); ++i)
result.unite(quads[i].boundingBox());
return ClientRect::create(result);
}
bool HTMLAnchorElement::isKeyboardFocusable(KeyboardEvent* event) const
{
if (!isLink())
return HTMLElement::isKeyboardFocusable(event);
if (!isFocusable())
return false;
if (!document().frame())
return false;
if (!document().frame()->eventHandler().tabsToLinks(event))
return false;
if (!renderer() && ancestorsOfType<HTMLCanvasElement>(*this).first())
return true;
return hasNonEmptyBox(renderBoxModelObject());
}
bool HTMLAnchorElement::isKeyboardFocusable(KeyboardEvent* event) const
{
if (!isLink())
return HTMLElement::isKeyboardFocusable(event);
if (!isFocusable())
return false;
if (!document()->frame())
return false;
if (!document()->frame()->eventHandler()->tabsToLinks(event))
return false;
if (isInCanvasSubtree())
return true;
return hasNonEmptyBox(renderBoxModelObject());
}