NS_IMETHODIMP
nsSVGForeignObjectFrame::NotifyRedrawUnsuspended()
{
if (!(GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD)) {
if (GetStateBits() & NS_STATE_SVG_DIRTY) {
UpdateGraphic(); // invalidate our entire area
} else {
FlushDirtyRegion(0); // only invalidate areas dirtied by our descendants
}
}
return NS_OK;
}
void
nsSVGForeignObjectFrame::DoReflow()
{
// Skip reflow if we're zero-sized, unless this is our first reflow.
if (IsDisabled() &&
!(GetStateBits() & NS_FRAME_FIRST_REFLOW))
return;
nsPresContext *presContext = PresContext();
nsIFrame* kid = GetFirstPrincipalChild();
if (!kid)
return;
// initiate a synchronous reflow here and now:
nsIPresShell* presShell = presContext->PresShell();
NS_ASSERTION(presShell, "null presShell");
nsRefPtr<nsRenderingContext> renderingContext =
presShell->GetReferenceRenderingContext();
if (!renderingContext)
return;
mInReflow = true;
nsHTMLReflowState reflowState(presContext, kid,
renderingContext,
nsSize(mRect.width, NS_UNCONSTRAINEDSIZE));
nsHTMLReflowMetrics desiredSize;
nsReflowStatus status;
// We don't use mRect.height above because that tells the child to do
// page/column breaking at that height.
NS_ASSERTION(reflowState.mComputedBorderPadding == nsMargin(0, 0, 0, 0) &&
reflowState.mComputedMargin == nsMargin(0, 0, 0, 0),
"style system should ensure that :-moz-svg-foreign-content "
"does not get styled");
NS_ASSERTION(reflowState.ComputedWidth() == mRect.width,
"reflow state made child wrong size");
reflowState.SetComputedHeight(mRect.height);
ReflowChild(kid, presContext, desiredSize, reflowState, 0, 0,
NS_FRAME_NO_MOVE_FRAME, status);
NS_ASSERTION(mRect.width == desiredSize.width &&
mRect.height == desiredSize.height, "unexpected size");
FinishReflowChild(kid, presContext, &reflowState, desiredSize, 0, 0,
NS_FRAME_NO_MOVE_FRAME);
mInReflow = false;
if (!(GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD)) {
FlushDirtyRegion(0);
}
}
void
nsSVGForeignObjectFrame::InvalidateInternal(const nsRect& aDamageRect,
nscoord aX, nscoord aY,
nsIFrame* aForChild,
PRUint32 aFlags)
{
// This is called by our descendants when they change.
if (GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD)
return;
nsRegion* region = (aFlags & INVALIDATE_CROSS_DOC)
? &mSubDocDirtyRegion : &mSameDocDirtyRegion;
region->Or(*region, aDamageRect + nsPoint(aX, aY));
FlushDirtyRegion(aFlags);
}
void
nsSVGForeignObjectFrame::DoReflow()
{
NS_ASSERTION(!(nsSVGUtils::GetOuterSVGFrame(this)->
GetStateBits() & NS_FRAME_FIRST_REFLOW),
"Calling InitialUpdate too early - must not call DoReflow!!!");
// Skip reflow if we're zero-sized, unless this is our first reflow.
if (IsDisabled() &&
!(GetStateBits() & NS_FRAME_FIRST_REFLOW))
return;
if (GetStateBits() & NS_STATE_SVG_NONDISPLAY_CHILD)
return;
nsPresContext *presContext = PresContext();
nsIFrame* kid = GetFirstChild(nsnull);
if (!kid)
return;
// initiate a synchronous reflow here and now:
nsSize availableSpace(NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE);
nsIPresShell* presShell = presContext->PresShell();
NS_ASSERTION(presShell, "null presShell");
nsRefPtr<nsRenderingContext> renderingContext =
presShell->GetReferenceRenderingContext();
if (!renderingContext)
return;
nsSVGForeignObjectElement *fO = static_cast<nsSVGForeignObjectElement*>
(mContent);
float width =
fO->mLengthAttributes[nsSVGForeignObjectElement::WIDTH].GetAnimValue(fO);
float height =
fO->mLengthAttributes[nsSVGForeignObjectElement::HEIGHT].GetAnimValue(fO);
// Clamp height & width to be non-negative (to match UpdateCoveredRegion).
width = NS_MAX(width, 0.0f);
height = NS_MAX(height, 0.0f);
nsSize size(nsPresContext::CSSPixelsToAppUnits(width),
nsPresContext::CSSPixelsToAppUnits(height));
mInReflow = PR_TRUE;
nsHTMLReflowState reflowState(presContext, kid,
renderingContext,
nsSize(size.width, NS_UNCONSTRAINEDSIZE));
nsHTMLReflowMetrics desiredSize;
nsReflowStatus status;
// We don't use size.height above because that tells the child to do
// page/column breaking at that height.
NS_ASSERTION(reflowState.mComputedBorderPadding == nsMargin(0, 0, 0, 0) &&
reflowState.mComputedMargin == nsMargin(0, 0, 0, 0),
"style system should ensure that :-moz-svg-foreign content "
"does not get styled");
NS_ASSERTION(reflowState.ComputedWidth() == size.width,
"reflow state made child wrong size");
reflowState.SetComputedHeight(size.height);
ReflowChild(kid, presContext, desiredSize, reflowState, 0, 0,
NS_FRAME_NO_MOVE_FRAME, status);
NS_ASSERTION(size.width == desiredSize.width &&
size.height == desiredSize.height, "unexpected size");
FinishReflowChild(kid, presContext, &reflowState, desiredSize, 0, 0,
NS_FRAME_NO_MOVE_FRAME);
mInReflow = PR_FALSE;
FlushDirtyRegion(0);
}
