diff -r 000000000000 -r 6474c204b198 layout/xul/nsImageBoxFrame.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/layout/xul/nsImageBoxFrame.cpp Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,771 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +// +// Eric Vaughan +// Netscape Communications +// +// See documentation in associated header file +// + +#include "nsImageBoxFrame.h" +#include "nsGkAtoms.h" +#include "nsStyleContext.h" +#include "nsStyleConsts.h" +#include "nsCOMPtr.h" +#include "nsPresContext.h" +#include "nsBoxLayoutState.h" + +#include "nsHTMLParts.h" +#include "nsString.h" +#include "nsLeafFrame.h" +#include "nsIPresShell.h" +#include "nsIDocument.h" +#include "nsImageMap.h" +#include "nsILinkHandler.h" +#include "nsIURL.h" +#include "nsILoadGroup.h" +#include "nsContainerFrame.h" +#include "prprf.h" +#include "nsCSSRendering.h" +#include "nsIDOMHTMLImageElement.h" +#include "nsNameSpaceManager.h" +#include "nsTextFragment.h" +#include "nsIDOMHTMLMapElement.h" +#include "nsTransform2D.h" +#include "nsITheme.h" + +#include "nsIServiceManager.h" +#include "nsIURI.h" +#include "nsNetUtil.h" +#include "nsThreadUtils.h" +#include "nsDisplayList.h" +#include "ImageLayers.h" +#include "ImageContainer.h" + +#include "nsContentUtils.h" + +#include "mozilla/BasicEvents.h" +#include "mozilla/EventDispatcher.h" + +#define ONLOAD_CALLED_TOO_EARLY 1 + +using namespace mozilla; +using namespace mozilla::layers; + +class nsImageBoxFrameEvent : public nsRunnable +{ +public: + nsImageBoxFrameEvent(nsIContent *content, uint32_t message) + : mContent(content), mMessage(message) {} + + NS_IMETHOD Run() MOZ_OVERRIDE; + +private: + nsCOMPtr mContent; + uint32_t mMessage; +}; + +NS_IMETHODIMP +nsImageBoxFrameEvent::Run() +{ + nsIPresShell *pres_shell = mContent->OwnerDoc()->GetShell(); + if (!pres_shell) { + return NS_OK; + } + + nsRefPtr pres_context = pres_shell->GetPresContext(); + if (!pres_context) { + return NS_OK; + } + + nsEventStatus status = nsEventStatus_eIgnore; + WidgetEvent event(true, mMessage); + + event.mFlags.mBubbles = false; + EventDispatcher::Dispatch(mContent, pres_context, &event, nullptr, &status); + return NS_OK; +} + +// Fire off an event that'll asynchronously call the image elements +// onload handler once handled. This is needed since the image library +// can't decide if it wants to call it's observer methods +// synchronously or asynchronously. If an image is loaded from the +// cache the notifications come back synchronously, but if the image +// is loaded from the netswork the notifications come back +// asynchronously. + +void +FireImageDOMEvent(nsIContent* aContent, uint32_t aMessage) +{ + NS_ASSERTION(aMessage == NS_LOAD || aMessage == NS_LOAD_ERROR, + "invalid message"); + + nsCOMPtr event = new nsImageBoxFrameEvent(aContent, aMessage); + if (NS_FAILED(NS_DispatchToCurrentThread(event))) + NS_WARNING("failed to dispatch image event"); +} + +// +// NS_NewImageBoxFrame +// +// Creates a new image frame and returns it +// +nsIFrame* +NS_NewImageBoxFrame (nsIPresShell* aPresShell, nsStyleContext* aContext) +{ + return new (aPresShell) nsImageBoxFrame (aPresShell, aContext); +} + +NS_IMPL_FRAMEARENA_HELPERS(nsImageBoxFrame) + +nsresult +nsImageBoxFrame::AttributeChanged(int32_t aNameSpaceID, + nsIAtom* aAttribute, + int32_t aModType) +{ + nsresult rv = nsLeafBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, + aModType); + + if (aAttribute == nsGkAtoms::src) { + UpdateImage(); + PresContext()->PresShell()-> + FrameNeedsReflow(this, nsIPresShell::eStyleChange, NS_FRAME_IS_DIRTY); + } + else if (aAttribute == nsGkAtoms::validate) + UpdateLoadFlags(); + + return rv; +} + +nsImageBoxFrame::nsImageBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext): + nsLeafBoxFrame(aShell, aContext), + mIntrinsicSize(0,0), + mRequestRegistered(false), + mLoadFlags(nsIRequest::LOAD_NORMAL), + mUseSrcAttr(false), + mSuppressStyleCheck(false), + mFireEventOnDecode(false) +{ + MarkIntrinsicWidthsDirty(); +} + +nsImageBoxFrame::~nsImageBoxFrame() +{ +} + + +/* virtual */ void +nsImageBoxFrame::MarkIntrinsicWidthsDirty() +{ + SizeNeedsRecalc(mImageSize); + nsLeafBoxFrame::MarkIntrinsicWidthsDirty(); +} + +void +nsImageBoxFrame::DestroyFrom(nsIFrame* aDestructRoot) +{ + if (mImageRequest) { + nsLayoutUtils::DeregisterImageRequest(PresContext(), mImageRequest, + &mRequestRegistered); + + // Release image loader first so that it's refcnt can go to zero + mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE); + } + + if (mListener) + reinterpret_cast(mListener.get())->SetFrame(nullptr); // set the frame to null so we don't send messages to a dead object. + + nsLeafBoxFrame::DestroyFrom(aDestructRoot); +} + + +void +nsImageBoxFrame::Init(nsIContent* aContent, + nsIFrame* aParent, + nsIFrame* aPrevInFlow) +{ + if (!mListener) { + nsImageBoxListener *listener = new nsImageBoxListener(); + NS_ADDREF(listener); + listener->SetFrame(this); + listener->QueryInterface(NS_GET_IID(imgINotificationObserver), getter_AddRefs(mListener)); + NS_RELEASE(listener); + } + + mSuppressStyleCheck = true; + nsLeafBoxFrame::Init(aContent, aParent, aPrevInFlow); + mSuppressStyleCheck = false; + + UpdateLoadFlags(); + UpdateImage(); +} + +void +nsImageBoxFrame::UpdateImage() +{ + nsPresContext* presContext = PresContext(); + + if (mImageRequest) { + nsLayoutUtils::DeregisterImageRequest(presContext, mImageRequest, + &mRequestRegistered); + mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE); + mImageRequest = nullptr; + } + + // get the new image src + nsAutoString src; + mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::src, src); + mUseSrcAttr = !src.IsEmpty(); + if (mUseSrcAttr) { + nsIDocument* doc = mContent->GetDocument(); + if (!doc) { + // No need to do anything here... + return; + } + nsCOMPtr baseURI = mContent->GetBaseURI(); + nsCOMPtr uri; + nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(uri), + src, + doc, + baseURI); + + if (uri && nsContentUtils::CanLoadImage(uri, mContent, doc, + mContent->NodePrincipal())) { + nsContentUtils::LoadImage(uri, doc, mContent->NodePrincipal(), + doc->GetDocumentURI(), mListener, mLoadFlags, + EmptyString(), getter_AddRefs(mImageRequest)); + + if (mImageRequest) { + nsLayoutUtils::RegisterImageRequestIfAnimated(presContext, + mImageRequest, + &mRequestRegistered); + } + } + } else { + // Only get the list-style-image if we aren't being drawn + // by a native theme. + uint8_t appearance = StyleDisplay()->mAppearance; + if (!(appearance && nsBox::gTheme && + nsBox::gTheme->ThemeSupportsWidget(nullptr, this, appearance))) { + // get the list-style-image + imgRequestProxy *styleRequest = StyleList()->GetListStyleImage(); + if (styleRequest) { + styleRequest->Clone(mListener, getter_AddRefs(mImageRequest)); + } + } + } + + if (!mImageRequest) { + // We have no image, so size to 0 + mIntrinsicSize.SizeTo(0, 0); + } else { + // We don't want discarding or decode-on-draw for xul images. + mImageRequest->StartDecoding(); + mImageRequest->LockImage(); + } +} + +void +nsImageBoxFrame::UpdateLoadFlags() +{ + static nsIContent::AttrValuesArray strings[] = + {&nsGkAtoms::always, &nsGkAtoms::never, nullptr}; + switch (mContent->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::validate, + strings, eCaseMatters)) { + case 0: + mLoadFlags = nsIRequest::VALIDATE_ALWAYS; + break; + case 1: + mLoadFlags = nsIRequest::VALIDATE_NEVER|nsIRequest::LOAD_FROM_CACHE; + break; + default: + mLoadFlags = nsIRequest::LOAD_NORMAL; + break; + } +} + +void +nsImageBoxFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, + const nsRect& aDirtyRect, + const nsDisplayListSet& aLists) +{ + nsLeafBoxFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists); + + if ((0 == mRect.width) || (0 == mRect.height)) { + // Do not render when given a zero area. This avoids some useless + // scaling work while we wait for our image dimensions to arrive + // asynchronously. + return; + } + + if (!IsVisibleForPainting(aBuilder)) + return; + + nsDisplayList list; + list.AppendNewToTop( + new (aBuilder) nsDisplayXULImage(aBuilder, this)); + + CreateOwnLayerIfNeeded(aBuilder, &list); + + aLists.Content()->AppendToTop(&list); +} + +void +nsImageBoxFrame::PaintImage(nsRenderingContext& aRenderingContext, + const nsRect& aDirtyRect, nsPoint aPt, + uint32_t aFlags) +{ + nsRect rect; + GetClientRect(rect); + + rect += aPt; + + if (!mImageRequest) + return; + + // don't draw if the image is not dirty + nsRect dirty; + if (!dirty.IntersectRect(aDirtyRect, rect)) + return; + + nsCOMPtr imgCon; + mImageRequest->GetImage(getter_AddRefs(imgCon)); + + if (imgCon) { + bool hasSubRect = !mUseSrcAttr && (mSubRect.width > 0 || mSubRect.height > 0); + nsLayoutUtils::DrawSingleImage(&aRenderingContext, imgCon, + nsLayoutUtils::GetGraphicsFilterForFrame(this), + rect, dirty, nullptr, aFlags, hasSubRect ? &mSubRect : nullptr); + } +} + +void nsDisplayXULImage::Paint(nsDisplayListBuilder* aBuilder, + nsRenderingContext* aCtx) +{ + uint32_t flags = imgIContainer::FLAG_NONE; + if (aBuilder->ShouldSyncDecodeImages()) + flags |= imgIContainer::FLAG_SYNC_DECODE; + if (aBuilder->IsPaintingToWindow()) + flags |= imgIContainer::FLAG_HIGH_QUALITY_SCALING; + + static_cast(mFrame)-> + PaintImage(*aCtx, mVisibleRect, ToReferenceFrame(), flags); +} + +void +nsDisplayXULImage::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder, + const nsDisplayItemGeometry* aGeometry, + nsRegion* aInvalidRegion) +{ + + if (aBuilder->ShouldSyncDecodeImages()) { + nsImageBoxFrame* boxFrame = static_cast(mFrame); + nsCOMPtr image; + if (boxFrame->mImageRequest) { + boxFrame->mImageRequest->GetImage(getter_AddRefs(image)); + } + + if (image && !image->IsDecoded()) { + bool snap; + aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap)); + } + } + + nsDisplayImageContainer::ComputeInvalidationRegion(aBuilder, aGeometry, aInvalidRegion); +} + +void +nsDisplayXULImage::ConfigureLayer(ImageLayer* aLayer, const nsIntPoint& aOffset) +{ + aLayer->SetFilter(nsLayoutUtils::GetGraphicsFilterForFrame(mFrame)); + + int32_t factor = mFrame->PresContext()->AppUnitsPerDevPixel(); + nsImageBoxFrame* imageFrame = static_cast(mFrame); + + nsRect dest; + imageFrame->GetClientRect(dest); + dest += ToReferenceFrame(); + gfxRect destRect(dest.x, dest.y, dest.width, dest.height); + destRect.ScaleInverse(factor); + + nsCOMPtr imgCon; + imageFrame->mImageRequest->GetImage(getter_AddRefs(imgCon)); + int32_t imageWidth; + int32_t imageHeight; + imgCon->GetWidth(&imageWidth); + imgCon->GetHeight(&imageHeight); + + NS_ASSERTION(imageWidth != 0 && imageHeight != 0, "Invalid image size!"); + + gfxPoint p = destRect.TopLeft() + aOffset; + gfx::Matrix transform; + transform.Translate(p.x, p.y); + transform.Scale(destRect.Width()/imageWidth, + destRect.Height()/imageHeight); + aLayer->SetBaseTransform(gfx::Matrix4x4::From2D(transform)); + + aLayer->SetVisibleRegion(nsIntRect(0, 0, imageWidth, imageHeight)); +} + +already_AddRefed +nsDisplayXULImage::GetContainer(LayerManager* aManager, nsDisplayListBuilder* aBuilder) +{ + return static_cast(mFrame)->GetContainer(aManager); +} + +already_AddRefed +nsImageBoxFrame::GetContainer(LayerManager* aManager) +{ + bool hasSubRect = !mUseSrcAttr && (mSubRect.width > 0 || mSubRect.height > 0); + if (hasSubRect || !mImageRequest) { + return nullptr; + } + + nsCOMPtr imgCon; + mImageRequest->GetImage(getter_AddRefs(imgCon)); + if (!imgCon) { + return nullptr; + } + + nsRefPtr container; + nsresult rv = imgCon->GetImageContainer(aManager, getter_AddRefs(container)); + NS_ENSURE_SUCCESS(rv, nullptr); + return container.forget(); +} + + +// +// DidSetStyleContext +// +// When the style context changes, make sure that all of our image is up to date. +// +/* virtual */ void +nsImageBoxFrame::DidSetStyleContext(nsStyleContext* aOldStyleContext) +{ + nsLeafBoxFrame::DidSetStyleContext(aOldStyleContext); + + // Fetch our subrect. + const nsStyleList* myList = StyleList(); + mSubRect = myList->mImageRegion; // before |mSuppressStyleCheck| test! + + if (mUseSrcAttr || mSuppressStyleCheck) + return; // No more work required, since the image isn't specified by style. + + // If we're using a native theme implementation, we shouldn't draw anything. + const nsStyleDisplay* disp = StyleDisplay(); + if (disp->mAppearance && nsBox::gTheme && + nsBox::gTheme->ThemeSupportsWidget(nullptr, this, disp->mAppearance)) + return; + + // If list-style-image changes, we have a new image. + nsCOMPtr oldURI, newURI; + if (mImageRequest) + mImageRequest->GetURI(getter_AddRefs(oldURI)); + if (myList->GetListStyleImage()) + myList->GetListStyleImage()->GetURI(getter_AddRefs(newURI)); + bool equal; + if (newURI == oldURI || // handles null==null + (newURI && oldURI && + NS_SUCCEEDED(newURI->Equals(oldURI, &equal)) && equal)) + return; + + UpdateImage(); +} // DidSetStyleContext + +void +nsImageBoxFrame::GetImageSize() +{ + if (mIntrinsicSize.width > 0 && mIntrinsicSize.height > 0) { + mImageSize.width = mIntrinsicSize.width; + mImageSize.height = mIntrinsicSize.height; + } else { + mImageSize.width = 0; + mImageSize.height = 0; + } +} + +/** + * Ok return our dimensions + */ +nsSize +nsImageBoxFrame::GetPrefSize(nsBoxLayoutState& aState) +{ + nsSize size(0,0); + DISPLAY_PREF_SIZE(this, size); + if (DoesNeedRecalc(mImageSize)) + GetImageSize(); + + if (!mUseSrcAttr && (mSubRect.width > 0 || mSubRect.height > 0)) + size = mSubRect.Size(); + else + size = mImageSize; + + nsSize intrinsicSize = size; + + nsMargin borderPadding(0,0,0,0); + GetBorderAndPadding(borderPadding); + size.width += borderPadding.LeftRight(); + size.height += borderPadding.TopBottom(); + + bool widthSet, heightSet; + nsIFrame::AddCSSPrefSize(this, size, widthSet, heightSet); + NS_ASSERTION(size.width != NS_INTRINSICSIZE && size.height != NS_INTRINSICSIZE, + "non-intrinsic size expected"); + + nsSize minSize = GetMinSize(aState); + nsSize maxSize = GetMaxSize(aState); + + if (!widthSet && !heightSet) { + if (minSize.width != NS_INTRINSICSIZE) + minSize.width -= borderPadding.LeftRight(); + if (minSize.height != NS_INTRINSICSIZE) + minSize.height -= borderPadding.TopBottom(); + if (maxSize.width != NS_INTRINSICSIZE) + maxSize.width -= borderPadding.LeftRight(); + if (maxSize.height != NS_INTRINSICSIZE) + maxSize.height -= borderPadding.TopBottom(); + + size = nsLayoutUtils::ComputeAutoSizeWithIntrinsicDimensions(minSize.width, minSize.height, + maxSize.width, maxSize.height, + intrinsicSize.width, intrinsicSize.height); + NS_ASSERTION(size.width != NS_INTRINSICSIZE && size.height != NS_INTRINSICSIZE, + "non-intrinsic size expected"); + size.width += borderPadding.LeftRight(); + size.height += borderPadding.TopBottom(); + return size; + } + + if (!widthSet) { + if (intrinsicSize.height > 0) { + // Subtract off the border and padding from the height because the + // content-box needs to be used to determine the ratio + nscoord height = size.height - borderPadding.TopBottom(); + size.width = nscoord(int64_t(height) * int64_t(intrinsicSize.width) / + int64_t(intrinsicSize.height)); + } + else { + size.width = intrinsicSize.width; + } + + size.width += borderPadding.LeftRight(); + } + else if (!heightSet) { + if (intrinsicSize.width > 0) { + nscoord width = size.width - borderPadding.LeftRight(); + size.height = nscoord(int64_t(width) * int64_t(intrinsicSize.height) / + int64_t(intrinsicSize.width)); + } + else { + size.height = intrinsicSize.height; + } + + size.height += borderPadding.TopBottom(); + } + + return BoundsCheck(minSize, size, maxSize); +} + +nsSize +nsImageBoxFrame::GetMinSize(nsBoxLayoutState& aState) +{ + // An image can always scale down to (0,0). + nsSize size(0,0); + DISPLAY_MIN_SIZE(this, size); + AddBorderAndPadding(size); + bool widthSet, heightSet; + nsIFrame::AddCSSMinSize(aState, this, size, widthSet, heightSet); + return size; +} + +nscoord +nsImageBoxFrame::GetBoxAscent(nsBoxLayoutState& aState) +{ + return GetPrefSize(aState).height; +} + +nsIAtom* +nsImageBoxFrame::GetType() const +{ + return nsGkAtoms::imageBoxFrame; +} + +#ifdef DEBUG_FRAME_DUMP +nsresult +nsImageBoxFrame::GetFrameName(nsAString& aResult) const +{ + return MakeFrameName(NS_LITERAL_STRING("ImageBox"), aResult); +} +#endif + +nsresult +nsImageBoxFrame::Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData) +{ + if (aType == imgINotificationObserver::SIZE_AVAILABLE) { + nsCOMPtr image; + aRequest->GetImage(getter_AddRefs(image)); + return OnStartContainer(aRequest, image); + } + + if (aType == imgINotificationObserver::DECODE_COMPLETE) { + return OnStopDecode(aRequest); + } + + if (aType == imgINotificationObserver::LOAD_COMPLETE) { + uint32_t imgStatus; + aRequest->GetImageStatus(&imgStatus); + nsresult status = + imgStatus & imgIRequest::STATUS_ERROR ? NS_ERROR_FAILURE : NS_OK; + return OnStopRequest(aRequest, status); + } + + if (aType == imgINotificationObserver::IS_ANIMATED) { + return OnImageIsAnimated(aRequest); + } + + if (aType == imgINotificationObserver::FRAME_UPDATE) { + return FrameChanged(aRequest); + } + + return NS_OK; +} + +nsresult nsImageBoxFrame::OnStartContainer(imgIRequest *request, + imgIContainer *image) +{ + NS_ENSURE_ARG_POINTER(image); + + // Ensure the animation (if any) is started. Note: There is no + // corresponding call to Decrement for this. This Increment will be + // 'cleaned up' by the Request when it is destroyed, but only then. + request->IncrementAnimationConsumers(); + + nscoord w, h; + image->GetWidth(&w); + image->GetHeight(&h); + + mIntrinsicSize.SizeTo(nsPresContext::CSSPixelsToAppUnits(w), + nsPresContext::CSSPixelsToAppUnits(h)); + + if (!(GetStateBits() & NS_FRAME_FIRST_REFLOW)) { + PresContext()->PresShell()-> + FrameNeedsReflow(this, nsIPresShell::eStyleChange, NS_FRAME_IS_DIRTY); + } + + return NS_OK; +} + +nsresult nsImageBoxFrame::OnStopDecode(imgIRequest *request) +{ + if (mFireEventOnDecode) { + mFireEventOnDecode = false; + + uint32_t reqStatus; + request->GetImageStatus(&reqStatus); + if (!(reqStatus & imgIRequest::STATUS_ERROR)) { + FireImageDOMEvent(mContent, NS_LOAD); + } else { + // Fire an onerror DOM event. + mIntrinsicSize.SizeTo(0, 0); + PresContext()->PresShell()-> + FrameNeedsReflow(this, nsIPresShell::eStyleChange, NS_FRAME_IS_DIRTY); + FireImageDOMEvent(mContent, NS_LOAD_ERROR); + } + } + + nsBoxLayoutState state(PresContext()); + this->Redraw(state); + + return NS_OK; +} + +nsresult nsImageBoxFrame::OnStopRequest(imgIRequest *request, + nsresult aStatus) +{ + uint32_t reqStatus; + request->GetImageStatus(&reqStatus); + + // We want to give the decoder a chance to find errors. If we haven't found + // an error yet and we've already started decoding, we must only fire these + // events after we finish decoding. + if (NS_SUCCEEDED(aStatus) && !(reqStatus & imgIRequest::STATUS_ERROR) && + reqStatus & imgIRequest::STATUS_DECODE_STARTED) { + mFireEventOnDecode = true; + } else { + if (NS_SUCCEEDED(aStatus)) { + // Fire an onload DOM event. + FireImageDOMEvent(mContent, NS_LOAD); + } else { + // Fire an onerror DOM event. + mIntrinsicSize.SizeTo(0, 0); + PresContext()->PresShell()-> + FrameNeedsReflow(this, nsIPresShell::eStyleChange, NS_FRAME_IS_DIRTY); + FireImageDOMEvent(mContent, NS_LOAD_ERROR); + } + } + + return NS_OK; +} + +nsresult nsImageBoxFrame::OnImageIsAnimated(imgIRequest *aRequest) +{ + // Register with our refresh driver, if we're animated. + nsLayoutUtils::RegisterImageRequest(PresContext(), aRequest, + &mRequestRegistered); + + return NS_OK; +} + +nsresult nsImageBoxFrame::FrameChanged(imgIRequest *aRequest) +{ + if ((0 == mRect.width) || (0 == mRect.height)) { + return NS_OK; + } + + InvalidateLayer(nsDisplayItem::TYPE_XUL_IMAGE); + + return NS_OK; +} + +NS_IMPL_ISUPPORTS(nsImageBoxListener, imgINotificationObserver, imgIOnloadBlocker) + +nsImageBoxListener::nsImageBoxListener() +{ +} + +nsImageBoxListener::~nsImageBoxListener() +{ +} + +NS_IMETHODIMP +nsImageBoxListener::Notify(imgIRequest *request, int32_t aType, const nsIntRect* aData) +{ + if (!mFrame) + return NS_OK; + + return mFrame->Notify(request, aType, aData); +} + +/* void blockOnload (in imgIRequest aRequest); */ +NS_IMETHODIMP +nsImageBoxListener::BlockOnload(imgIRequest *aRequest) +{ + if (mFrame && mFrame->GetContent() && mFrame->GetContent()->GetCurrentDoc()) { + mFrame->GetContent()->GetCurrentDoc()->BlockOnload(); + } + + return NS_OK; +} + +/* void unblockOnload (in imgIRequest aRequest); */ +NS_IMETHODIMP +nsImageBoxListener::UnblockOnload(imgIRequest *aRequest) +{ + if (mFrame && mFrame->GetContent() && mFrame->GetContent()->GetCurrentDoc()) { + mFrame->GetContent()->GetCurrentDoc()->UnblockOnload(false); + } + + return NS_OK; +}