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)); }