virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) {
*aSnap = false;
// override bounds because the list item focus ring may extend outside
// the nsSelectsAreaFrame
nsListControlFrame* listFrame = GetEnclosingListFrame(Frame());
return listFrame->GetVisualOverflowRectRelativeToSelf() +
listFrame->GetOffsetToCrossDoc(ReferenceFrame());
}
void
nsSelectsAreaFrame::BuildDisplayListInternal(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
nsBlockFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
nsListControlFrame* listFrame = GetEnclosingListFrame(this);
if (listFrame && listFrame->IsFocused()) {
// we can't just associate the display item with the list frame,
// because then the list's scrollframe won't clip it (the scrollframe
// only clips contained descendants).
aLists.Outlines()->AppendNewToTop(new (aBuilder)
nsDisplayListFocus(aBuilder, this));
}
}
NS_IMETHODIMP
nsSelectsAreaFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
nsListControlFrame* list = GetEnclosingListFrame(this);
NS_ASSERTION(list,
"Must have an nsListControlFrame! Frame constructor is "
"broken");
bool isInDropdownMode = list->IsInDropDownMode();
// See similar logic in nsListControlFrame::Reflow and
// nsListControlFrame::ReflowAsDropdown. We need to match it here.
nscoord oldHeight;
if (isInDropdownMode) {
// Store the height now in case it changes during
// nsBlockFrame::Reflow for some odd reason.
if (!(GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
oldHeight = GetSize().height;
} else {
oldHeight = NS_UNCONSTRAINEDSIZE;
}
}
nsresult rv = nsBlockFrame::Reflow(aPresContext, aDesiredSize,
aReflowState, aStatus);
NS_ENSURE_SUCCESS(rv, rv);
// Check whether we need to suppress scrollbar updates. We want to do that if
// we're in a possible first pass and our height of a row has changed.
if (list->MightNeedSecondPass()) {
nscoord newHeightOfARow = list->CalcHeightOfARow();
// We'll need a second pass if our height of a row changed. For
// comboboxes, we'll also need it if our height changed. If we're going
// to do a second pass, suppress scrollbar updates for this pass.
if (newHeightOfARow != mHeightOfARow ||
(isInDropdownMode && (oldHeight != aDesiredSize.height ||
oldHeight != GetSize().height))) {
mHeightOfARow = newHeightOfARow;
list->SetSuppressScrollbarUpdate(true);
}
}
return rv;
}
virtual void Paint(nsDisplayListBuilder* aBuilder,
nsRenderingContext* aCtx) {
nsListControlFrame* listFrame = GetEnclosingListFrame(Frame());
// listFrame must be non-null or we wouldn't get called.
listFrame->PaintFocus(*aCtx, aBuilder->ToReferenceFrame(listFrame));
}
