// Only place the selected child ...
/* virtual */ nsresult
nsMathMLmactionFrame::Place(nsRenderingContext& aRenderingContext,
bool aPlaceOrigin,
nsHTMLReflowMetrics& aDesiredSize)
{
nsIFrame* childFrame = GetSelectedFrame();
if (mSelection == -1) {
return ReflowError(aRenderingContext, aDesiredSize);
}
aDesiredSize.width = aDesiredSize.height = 0;
aDesiredSize.ascent = 0;
mBoundingMetrics = nsBoundingMetrics();
if (childFrame) {
GetReflowAndBoundingMetricsFor(childFrame, aDesiredSize, mBoundingMetrics);
if (aPlaceOrigin) {
FinishReflowChild(childFrame, PresContext(), nullptr, aDesiredSize, 0, 0, 0);
}
mReference.x = 0;
mReference.y = aDesiredSize.ascent;
}
aDesiredSize.mBoundingMetrics = mBoundingMetrics;
return NS_OK;
}
// Only reflow the selected child ...
NS_IMETHODIMP
nsMathMLmactionFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
nsresult rv = NS_OK;
aStatus = NS_FRAME_COMPLETE;
aDesiredSize.width = aDesiredSize.height = 0;
aDesiredSize.ascent = 0;
mBoundingMetrics = nsBoundingMetrics();
nsIFrame* childFrame = GetSelectedFrame();
if (childFrame) {
nsSize availSize(aReflowState.ComputedWidth(), NS_UNCONSTRAINEDSIZE);
nsHTMLReflowState childReflowState(aPresContext, aReflowState,
childFrame, availSize);
rv = ReflowChild(childFrame, aPresContext, aDesiredSize,
childReflowState, aStatus);
SaveReflowAndBoundingMetricsFor(childFrame, aDesiredSize,
aDesiredSize.mBoundingMetrics);
mBoundingMetrics = aDesiredSize.mBoundingMetrics;
}
FinalizeReflow(*aReflowState.rendContext, aDesiredSize);
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
return rv;
}
// Only paint the selected child...
NS_IMETHODIMP
nsMathMLmactionFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
// Report an error if something wrong was found in this frame.
// We can't call nsDisplayMathMLError from here,
// so ask nsMathMLContainerFrame to do the work for us.
if (NS_MATHML_HAS_ERROR(mPresentationData.flags)) {
return nsMathMLContainerFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists);
}
nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
NS_ENSURE_SUCCESS(rv, rv);
nsIFrame* childFrame = GetSelectedFrame();
if (childFrame) {
// Put the child's background directly onto the content list
nsDisplayListSet set(aLists, aLists.Content());
// The children should be in content order
rv = BuildDisplayListForChild(aBuilder, childFrame, aDirtyRect, set);
NS_ENSURE_SUCCESS(rv, rv);
}
#if defined(DEBUG) && defined(SHOW_BOUNDING_BOX)
// visual debug
rv = DisplayBoundingMetrics(aBuilder, this, mReference, mBoundingMetrics, aLists);
#endif
return rv;
}
nsresult
nsMathMLmactionFrame::ChildListChanged(int32_t aModType)
{
// update cached values
mChildCount = -1;
mSelection = 0;
mSelectedFrame = nullptr;
GetSelectedFrame();
return nsMathMLContainerFrame::ChildListChanged(aModType);
}
// Only paint the selected child...
NS_IMETHODIMP
nsMathMLmactionFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
NS_ENSURE_SUCCESS(rv, rv);
nsIFrame* childFrame = GetSelectedFrame();
if (childFrame) {
// Put the child's background directly onto the content list
nsDisplayListSet set(aLists, aLists.Content());
// The children should be in content order
rv = BuildDisplayListForChild(aBuilder, childFrame, aDirtyRect, set);
NS_ENSURE_SUCCESS(rv, rv);
}
#if defined(NS_DEBUG) && defined(SHOW_BOUNDING_BOX)
// visual debug
rv = DisplayBoundingMetrics(aBuilder, this, mReference, mBoundingMetrics, aLists);
#endif
return rv;
}
NS_IMETHODIMP
nsMathMLmactionFrame::SetInitialChildList(ChildListID aListID,
nsFrameList& aChildList)
{
nsresult rv = nsMathMLContainerFrame::SetInitialChildList(aListID, aChildList);
// This very first call to GetSelectedFrame() will cause us to be marked as an
// embellished operator if the selected child is an embellished operator
if (!GetSelectedFrame()) {
mActionType = NS_MATHML_ACTION_TYPE_NONE;
}
else {
// create mouse event listener and register it
mListener = new nsMathMLmactionFrame::MouseListener(this);
// printf("maction:%p registering as mouse event listener ...\n", this);
mContent->AddSystemEventListener(NS_LITERAL_STRING("click"), mListener,
false, false);
mContent->AddSystemEventListener(NS_LITERAL_STRING("mouseover"), mListener,
false, false);
mContent->AddSystemEventListener(NS_LITERAL_STRING("mouseout"), mListener,
false, false);
}
return rv;
}
