NS_IMETHODIMP
nsBox::GetMargin(nsMargin& aMargin)
{
aMargin.SizeTo(0,0,0,0);
GetStyleMargin()->GetMargin(aMargin);
return NS_OK;
}
/* virtual */ PRBool
nsInlineFrame::IsSelfEmpty()
{
#if 0
// I used to think inline frames worked this way, but it seems they
// don't. At least not in our codebase.
if (GetPresContext()->CompatibilityMode() == eCompatibility_FullStandards) {
return PR_FALSE;
}
#endif
const nsStyleMargin* margin = GetStyleMargin();
const nsStyleBorder* border = GetStyleBorder();
const nsStylePadding* padding = GetStylePadding();
// XXX Top and bottom removed, since they shouldn't affect things, but this
// doesn't really match with nsLineLayout.cpp's setting of
// ZeroEffectiveSpanBox, anymore, so what should this really be?
PRBool haveRight =
border->GetActualBorderWidth(NS_SIDE_RIGHT) != 0 ||
!IsPaddingZero(padding->mPadding.GetRightUnit(),
padding->mPadding.GetRight()) ||
!IsMarginZero(margin->mMargin.GetRightUnit(),
margin->mMargin.GetRight());
PRBool haveLeft =
border->GetActualBorderWidth(NS_SIDE_LEFT) != 0 ||
!IsPaddingZero(padding->mPadding.GetLeftUnit(),
padding->mPadding.GetLeft()) ||
!IsMarginZero(margin->mMargin.GetLeftUnit(),
margin->mMargin.GetLeft());
if (haveLeft || haveRight) {
if (GetStateBits() & NS_FRAME_IS_SPECIAL) {
PRBool haveStart, haveEnd;
if (NS_STYLE_DIRECTION_LTR == GetStyleVisibility()->mDirection) {
haveStart = haveLeft;
haveEnd = haveRight;
} else {
haveStart = haveRight;
haveEnd = haveLeft;
}
// For special frames, ignore things we know we'll skip in GetSkipSides.
// XXXbz should we be doing this for non-special frames too, in a more
// general way?
// Get the first continuation eagerly, as a performance optimization, to
// avoid having to get it twice..
nsIFrame* firstCont = GetFirstContinuation();
return
(!haveStart || nsLayoutUtils::FrameIsInLastPartOfIBSplit(firstCont)) &&
(!haveEnd || nsLayoutUtils::FrameIsInFirstPartOfIBSplit(firstCont));
}
return PR_FALSE;
}
return PR_TRUE;
}
