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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/svg/nsSVGImageFrame.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/svg/nsSVGImageFrame.cpp')
-rw-r--r--layout/svg/nsSVGImageFrame.cpp667
1 files changed, 667 insertions, 0 deletions
diff --git a/layout/svg/nsSVGImageFrame.cpp b/layout/svg/nsSVGImageFrame.cpp
new file mode 100644
index 000000000..c0a7f9419
--- /dev/null
+++ b/layout/svg/nsSVGImageFrame.cpp
@@ -0,0 +1,667 @@
+/* -*- 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/. */
+
+// Keep in (case-insensitive) order:
+#include "gfxContext.h"
+#include "gfxPlatform.h"
+#include "mozilla/gfx/2D.h"
+#include "imgIContainer.h"
+#include "nsContainerFrame.h"
+#include "nsIImageLoadingContent.h"
+#include "nsLayoutUtils.h"
+#include "imgINotificationObserver.h"
+#include "nsSVGEffects.h"
+#include "nsSVGPathGeometryFrame.h"
+#include "mozilla/dom/SVGSVGElement.h"
+#include "nsSVGUtils.h"
+#include "SVGContentUtils.h"
+#include "SVGImageContext.h"
+#include "mozilla/dom/SVGImageElement.h"
+#include "nsContentUtils.h"
+#include "nsIReflowCallback.h"
+#include "mozilla/Unused.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::gfx;
+using namespace mozilla::image;
+
+class nsSVGImageFrame;
+
+class nsSVGImageListener final : public imgINotificationObserver
+{
+public:
+ explicit nsSVGImageListener(nsSVGImageFrame *aFrame);
+
+ NS_DECL_ISUPPORTS
+ NS_DECL_IMGINOTIFICATIONOBSERVER
+
+ void SetFrame(nsSVGImageFrame *frame) { mFrame = frame; }
+
+private:
+ ~nsSVGImageListener() {}
+
+ nsSVGImageFrame *mFrame;
+};
+
+class nsSVGImageFrame : public nsSVGPathGeometryFrame
+ , public nsIReflowCallback
+{
+ friend nsIFrame*
+ NS_NewSVGImageFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+
+protected:
+ explicit nsSVGImageFrame(nsStyleContext* aContext)
+ : nsSVGPathGeometryFrame(aContext)
+ , mReflowCallbackPosted(false)
+ {
+ EnableVisibilityTracking();
+ }
+
+ virtual ~nsSVGImageFrame();
+
+public:
+ NS_DECL_FRAMEARENA_HELPERS
+
+ // nsISVGChildFrame interface:
+ virtual DrawResult PaintSVG(gfxContext& aContext,
+ const gfxMatrix& aTransform,
+ const nsIntRect* aDirtyRect = nullptr) override;
+ virtual nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
+ virtual void ReflowSVG() override;
+
+ // nsSVGPathGeometryFrame methods:
+ virtual uint16_t GetHitTestFlags() override;
+
+ // nsIFrame interface:
+ virtual nsresult AttributeChanged(int32_t aNameSpaceID,
+ nsIAtom* aAttribute,
+ int32_t aModType) override;
+
+ void OnVisibilityChange(Visibility aNewVisibility,
+ Maybe<OnNonvisible> aNonvisibleAction = Nothing()) override;
+
+ virtual void Init(nsIContent* aContent,
+ nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow) override;
+ virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
+
+ /**
+ * Get the "type" of the frame
+ *
+ * @see nsGkAtoms::svgImageFrame
+ */
+ virtual nsIAtom* GetType() const override;
+
+#ifdef DEBUG_FRAME_DUMP
+ virtual nsresult GetFrameName(nsAString& aResult) const override
+ {
+ return MakeFrameName(NS_LITERAL_STRING("SVGImage"), aResult);
+ }
+#endif
+
+ // nsIReflowCallback
+ virtual bool ReflowFinished() override;
+ virtual void ReflowCallbackCanceled() override;
+
+private:
+ gfx::Matrix GetRasterImageTransform(int32_t aNativeWidth,
+ int32_t aNativeHeight);
+ gfx::Matrix GetVectorImageTransform();
+ bool TransformContextForPainting(gfxContext* aGfxContext,
+ const gfxMatrix& aTransform);
+
+ nsCOMPtr<imgINotificationObserver> mListener;
+
+ nsCOMPtr<imgIContainer> mImageContainer;
+
+ bool mReflowCallbackPosted;
+
+ friend class nsSVGImageListener;
+};
+
+//----------------------------------------------------------------------
+// Implementation
+
+nsIFrame*
+NS_NewSVGImageFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
+{
+ return new (aPresShell) nsSVGImageFrame(aContext);
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsSVGImageFrame)
+
+nsSVGImageFrame::~nsSVGImageFrame()
+{
+ // set the frame to null so we don't send messages to a dead object.
+ if (mListener) {
+ nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent);
+ if (imageLoader) {
+ imageLoader->RemoveObserver(mListener);
+ }
+ reinterpret_cast<nsSVGImageListener*>(mListener.get())->SetFrame(nullptr);
+ }
+ mListener = nullptr;
+}
+
+void
+nsSVGImageFrame::Init(nsIContent* aContent,
+ nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow)
+{
+ NS_ASSERTION(aContent->IsSVGElement(nsGkAtoms::image),
+ "Content is not an SVG image!");
+
+ nsSVGPathGeometryFrame::Init(aContent, aParent, aPrevInFlow);
+
+ if (GetStateBits() & NS_FRAME_IS_NONDISPLAY) {
+ // Non-display frames are likely to be patterns, masks or the like.
+ // Treat them as always visible.
+ IncApproximateVisibleCount();
+ }
+
+ mListener = new nsSVGImageListener(this);
+ nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent);
+ if (!imageLoader) {
+ NS_RUNTIMEABORT("Why is this not an image loading content?");
+ }
+
+ // We should have a PresContext now, so let's notify our image loader that
+ // we need to register any image animations with the refresh driver.
+ imageLoader->FrameCreated(this);
+
+ imageLoader->AddObserver(mListener);
+}
+
+/* virtual */ void
+nsSVGImageFrame::DestroyFrom(nsIFrame* aDestructRoot)
+{
+ if (GetStateBits() & NS_FRAME_IS_NONDISPLAY) {
+ DecApproximateVisibleCount();
+ }
+
+ if (mReflowCallbackPosted) {
+ PresContext()->PresShell()->CancelReflowCallback(this);
+ mReflowCallbackPosted = false;
+ }
+
+ nsCOMPtr<nsIImageLoadingContent> imageLoader =
+ do_QueryInterface(nsFrame::mContent);
+
+ if (imageLoader) {
+ imageLoader->FrameDestroyed(this);
+ }
+
+ nsFrame::DestroyFrom(aDestructRoot);
+}
+
+//----------------------------------------------------------------------
+// nsIFrame methods:
+
+nsresult
+nsSVGImageFrame::AttributeChanged(int32_t aNameSpaceID,
+ nsIAtom* aAttribute,
+ int32_t aModType)
+{
+ if (aNameSpaceID == kNameSpaceID_None) {
+ if (aAttribute == nsGkAtoms::x ||
+ aAttribute == nsGkAtoms::y ||
+ aAttribute == nsGkAtoms::width ||
+ aAttribute == nsGkAtoms::height) {
+ nsLayoutUtils::PostRestyleEvent(
+ mContent->AsElement(), nsRestyleHint(0),
+ nsChangeHint_InvalidateRenderingObservers);
+ nsSVGUtils::ScheduleReflowSVG(this);
+ return NS_OK;
+ }
+ else if (aAttribute == nsGkAtoms::preserveAspectRatio) {
+ // We don't paint the content of the image using display lists, therefore
+ // we have to invalidate for this children-only transform changes since
+ // there is no layer tree to notice that the transform changed and
+ // recomposite.
+ InvalidateFrame();
+ return NS_OK;
+ }
+ }
+ if ((aNameSpaceID == kNameSpaceID_XLink ||
+ aNameSpaceID == kNameSpaceID_None) &&
+ aAttribute == nsGkAtoms::href) {
+ SVGImageElement *element = static_cast<SVGImageElement*>(mContent);
+
+ bool hrefIsSet =
+ element->mStringAttributes[SVGImageElement::HREF].IsExplicitlySet() ||
+ element->mStringAttributes[SVGImageElement::XLINK_HREF].IsExplicitlySet();
+ if (hrefIsSet) {
+ element->LoadSVGImage(true, true);
+ } else {
+ element->CancelImageRequests(true);
+ }
+ }
+
+ return nsSVGPathGeometryFrame::AttributeChanged(aNameSpaceID,
+ aAttribute, aModType);
+}
+
+void
+nsSVGImageFrame::OnVisibilityChange(Visibility aNewVisibility,
+ Maybe<OnNonvisible> aNonvisibleAction)
+{
+ nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent);
+ if (!imageLoader) {
+ nsSVGPathGeometryFrame::OnVisibilityChange(aNewVisibility, aNonvisibleAction);
+ return;
+ }
+
+ imageLoader->OnVisibilityChange(aNewVisibility, aNonvisibleAction);
+
+ nsSVGPathGeometryFrame::OnVisibilityChange(aNewVisibility, aNonvisibleAction);
+}
+
+gfx::Matrix
+nsSVGImageFrame::GetRasterImageTransform(int32_t aNativeWidth,
+ int32_t aNativeHeight)
+{
+ float x, y, width, height;
+ SVGImageElement *element = static_cast<SVGImageElement*>(mContent);
+ element->GetAnimatedLengthValues(&x, &y, &width, &height, nullptr);
+
+ Matrix viewBoxTM =
+ SVGContentUtils::GetViewBoxTransform(width, height,
+ 0, 0, aNativeWidth, aNativeHeight,
+ element->mPreserveAspectRatio);
+
+ return viewBoxTM * gfx::Matrix::Translation(x, y);
+}
+
+gfx::Matrix
+nsSVGImageFrame::GetVectorImageTransform()
+{
+ float x, y, width, height;
+ SVGImageElement *element = static_cast<SVGImageElement*>(mContent);
+ element->GetAnimatedLengthValues(&x, &y, &width, &height, nullptr);
+
+ // No viewBoxTM needed here -- our height/width overrides any concept of
+ // "native size" that the SVG image has, and it will handle viewBox and
+ // preserveAspectRatio on its own once we give it a region to draw into.
+
+ return gfx::Matrix::Translation(x, y);
+}
+
+bool
+nsSVGImageFrame::TransformContextForPainting(gfxContext* aGfxContext,
+ const gfxMatrix& aTransform)
+{
+ gfx::Matrix imageTransform;
+ if (mImageContainer->GetType() == imgIContainer::TYPE_VECTOR) {
+ imageTransform = GetVectorImageTransform() * ToMatrix(aTransform);
+ } else {
+ int32_t nativeWidth, nativeHeight;
+ if (NS_FAILED(mImageContainer->GetWidth(&nativeWidth)) ||
+ NS_FAILED(mImageContainer->GetHeight(&nativeHeight)) ||
+ nativeWidth == 0 || nativeHeight == 0) {
+ return false;
+ }
+ imageTransform =
+ GetRasterImageTransform(nativeWidth, nativeHeight) * ToMatrix(aTransform);
+
+ // NOTE: We need to cancel out the effects of Full-Page-Zoom, or else
+ // it'll get applied an extra time by DrawSingleUnscaledImage.
+ nscoord appUnitsPerDevPx = PresContext()->AppUnitsPerDevPixel();
+ gfxFloat pageZoomFactor =
+ nsPresContext::AppUnitsToFloatCSSPixels(appUnitsPerDevPx);
+ imageTransform.PreScale(pageZoomFactor, pageZoomFactor);
+ }
+
+ if (imageTransform.IsSingular()) {
+ return false;
+ }
+
+ aGfxContext->Multiply(ThebesMatrix(imageTransform));
+ return true;
+}
+
+//----------------------------------------------------------------------
+// nsISVGChildFrame methods:
+DrawResult
+nsSVGImageFrame::PaintSVG(gfxContext& aContext,
+ const gfxMatrix& aTransform,
+ const nsIntRect *aDirtyRect)
+{
+ if (!StyleVisibility()->IsVisible())
+ return DrawResult::SUCCESS;
+
+ float x, y, width, height;
+ SVGImageElement *imgElem = static_cast<SVGImageElement*>(mContent);
+ imgElem->GetAnimatedLengthValues(&x, &y, &width, &height, nullptr);
+ NS_ASSERTION(width > 0 && height > 0,
+ "Should only be painting things with valid width/height");
+
+ if (!mImageContainer) {
+ nsCOMPtr<imgIRequest> currentRequest;
+ nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mContent);
+ if (imageLoader)
+ imageLoader->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
+ getter_AddRefs(currentRequest));
+
+ if (currentRequest)
+ currentRequest->GetImage(getter_AddRefs(mImageContainer));
+ }
+
+ DrawResult result = DrawResult::SUCCESS;
+ if (mImageContainer) {
+ gfxContextAutoSaveRestore autoRestorer(&aContext);
+
+ if (StyleDisplay()->IsScrollableOverflow()) {
+ gfxRect clipRect = nsSVGUtils::GetClipRectForFrame(this, x, y,
+ width, height);
+ nsSVGUtils::SetClipRect(&aContext, aTransform, clipRect);
+ }
+
+ if (!TransformContextForPainting(&aContext, aTransform)) {
+ return DrawResult::SUCCESS;
+ }
+
+ // fill-opacity doesn't affect <image>, so if we're allowed to
+ // optimize group opacity, the opacity used for compositing the
+ // image into the current canvas is just the group opacity.
+ float opacity = 1.0f;
+ if (nsSVGUtils::CanOptimizeOpacity(this)) {
+ opacity = StyleEffects()->mOpacity;
+ }
+
+ if (opacity != 1.0f || StyleEffects()->mMixBlendMode != NS_STYLE_BLEND_NORMAL) {
+ aContext.PushGroupForBlendBack(gfxContentType::COLOR_ALPHA, opacity);
+ }
+
+ nscoord appUnitsPerDevPx = PresContext()->AppUnitsPerDevPixel();
+ nsRect dirtyRect; // only used if aDirtyRect is non-null
+ if (aDirtyRect) {
+ NS_ASSERTION(!NS_SVGDisplayListPaintingEnabled() ||
+ (mState & NS_FRAME_IS_NONDISPLAY),
+ "Display lists handle dirty rect intersection test");
+ dirtyRect = ToAppUnits(*aDirtyRect, appUnitsPerDevPx);
+ // Adjust dirtyRect to match our local coordinate system.
+ nsRect rootRect =
+ nsSVGUtils::TransformFrameRectToOuterSVG(mRect, aTransform,
+ PresContext());
+ dirtyRect.MoveBy(-rootRect.TopLeft());
+ }
+
+ // XXXbholley - I don't think huge images in SVGs are common enough to
+ // warrant worrying about the responsiveness impact of doing synchronous
+ // decodes. The extra code complexity of determinining when we want to
+ // force sync probably just isn't worth it, so always pass FLAG_SYNC_DECODE
+ uint32_t drawFlags = imgIContainer::FLAG_SYNC_DECODE;
+
+ if (mImageContainer->GetType() == imgIContainer::TYPE_VECTOR) {
+ // Package up the attributes of this image element which can override the
+ // attributes of mImageContainer's internal SVG document. The 'width' &
+ // 'height' values we're passing in here are in CSS units (though they
+ // come from width/height *attributes* in SVG). They influence the region
+ // of the SVG image's internal document that is visible, in combination
+ // with preserveAspectRatio and viewBox.
+ SVGImageContext context(CSSIntSize::Truncate(width, height),
+ Some(imgElem->mPreserveAspectRatio.GetAnimValue()),
+ 1.0, true);
+
+ // For the actual draw operation to draw crisply (and at the right size),
+ // our destination rect needs to be |width|x|height|, *in dev pixels*.
+ LayoutDeviceSize devPxSize(width, height);
+ nsRect destRect(nsPoint(),
+ LayoutDevicePixel::ToAppUnits(devPxSize,
+ appUnitsPerDevPx));
+
+ // Note: Can't use DrawSingleUnscaledImage for the TYPE_VECTOR case.
+ // That method needs our image to have a fixed native width & height,
+ // and that's not always true for TYPE_VECTOR images.
+ result = nsLayoutUtils::DrawSingleImage(
+ aContext,
+ PresContext(),
+ mImageContainer,
+ nsLayoutUtils::GetSamplingFilterForFrame(this),
+ destRect,
+ aDirtyRect ? dirtyRect : destRect,
+ &context,
+ drawFlags);
+ } else { // mImageContainer->GetType() == TYPE_RASTER
+ result = nsLayoutUtils::DrawSingleUnscaledImage(
+ aContext,
+ PresContext(),
+ mImageContainer,
+ nsLayoutUtils::GetSamplingFilterForFrame(this),
+ nsPoint(0, 0),
+ aDirtyRect ? &dirtyRect : nullptr,
+ drawFlags);
+ }
+
+ if (opacity != 1.0f || StyleEffects()->mMixBlendMode != NS_STYLE_BLEND_NORMAL) {
+ aContext.PopGroupAndBlend();
+ }
+ // gfxContextAutoSaveRestore goes out of scope & cleans up our gfxContext
+ }
+
+ return result;
+}
+
+nsIFrame*
+nsSVGImageFrame::GetFrameForPoint(const gfxPoint& aPoint)
+{
+ if (!(GetStateBits() & NS_STATE_SVG_CLIPPATH_CHILD) && !GetHitTestFlags()) {
+ return nullptr;
+ }
+
+ Rect rect;
+ SVGImageElement *element = static_cast<SVGImageElement*>(mContent);
+ element->GetAnimatedLengthValues(&rect.x, &rect.y,
+ &rect.width, &rect.height, nullptr);
+
+ if (!rect.Contains(ToPoint(aPoint))) {
+ return nullptr;
+ }
+
+ // Special case for raster images -- we only want to accept points that fall
+ // in the underlying image's (scaled to fit) native bounds. That region
+ // doesn't necessarily map to our <image> element's [x,y,width,height] if the
+ // raster image's aspect ratio is being preserved. We have to look up the
+ // native image size & our viewBox transform in order to filter out points
+ // that fall outside that area. (This special case doesn't apply to vector
+ // images because they don't limit their drawing to explicit "native
+ // bounds" -- they have an infinite canvas on which to place content.)
+ if (StyleDisplay()->IsScrollableOverflow() && mImageContainer) {
+ if (mImageContainer->GetType() == imgIContainer::TYPE_RASTER) {
+ int32_t nativeWidth, nativeHeight;
+ if (NS_FAILED(mImageContainer->GetWidth(&nativeWidth)) ||
+ NS_FAILED(mImageContainer->GetHeight(&nativeHeight)) ||
+ nativeWidth == 0 || nativeHeight == 0) {
+ return nullptr;
+ }
+ Matrix viewBoxTM =
+ SVGContentUtils::GetViewBoxTransform(rect.width, rect.height,
+ 0, 0, nativeWidth, nativeHeight,
+ element->mPreserveAspectRatio);
+ if (!nsSVGUtils::HitTestRect(viewBoxTM,
+ 0, 0, nativeWidth, nativeHeight,
+ aPoint.x - rect.x, aPoint.y - rect.y)) {
+ return nullptr;
+ }
+ }
+ }
+
+ return this;
+}
+
+nsIAtom *
+nsSVGImageFrame::GetType() const
+{
+ return nsGkAtoms::svgImageFrame;
+}
+
+//----------------------------------------------------------------------
+// nsSVGPathGeometryFrame methods:
+
+// Lie about our fill/stroke so that covered region and hit detection work properly
+
+void
+nsSVGImageFrame::ReflowSVG()
+{
+ NS_ASSERTION(nsSVGUtils::OuterSVGIsCallingReflowSVG(this),
+ "This call is probably a wasteful mistake");
+
+ MOZ_ASSERT(!(GetStateBits() & NS_FRAME_IS_NONDISPLAY),
+ "ReflowSVG mechanism not designed for this");
+
+ if (!nsSVGUtils::NeedsReflowSVG(this)) {
+ return;
+ }
+
+ float x, y, width, height;
+ SVGImageElement *element = static_cast<SVGImageElement*>(mContent);
+ element->GetAnimatedLengthValues(&x, &y, &width, &height, nullptr);
+
+ Rect extent(x, y, width, height);
+
+ if (!extent.IsEmpty()) {
+ mRect = nsLayoutUtils::RoundGfxRectToAppRect(extent,
+ PresContext()->AppUnitsPerCSSPixel());
+ } else {
+ mRect.SetEmpty();
+ }
+
+ if (mState & NS_FRAME_FIRST_REFLOW) {
+ // Make sure we have our filter property (if any) before calling
+ // FinishAndStoreOverflow (subsequent filter changes are handled off
+ // nsChangeHint_UpdateEffects):
+ nsSVGEffects::UpdateEffects(this);
+
+ if (!mReflowCallbackPosted) {
+ nsIPresShell* shell = PresContext()->PresShell();
+ mReflowCallbackPosted = true;
+ shell->PostReflowCallback(this);
+ }
+ }
+
+ nsRect overflow = nsRect(nsPoint(0,0), mRect.Size());
+ nsOverflowAreas overflowAreas(overflow, overflow);
+ FinishAndStoreOverflow(overflowAreas, mRect.Size());
+
+ mState &= ~(NS_FRAME_FIRST_REFLOW | NS_FRAME_IS_DIRTY |
+ NS_FRAME_HAS_DIRTY_CHILDREN);
+
+ // Invalidate, but only if this is not our first reflow (since if it is our
+ // first reflow then we haven't had our first paint yet).
+ if (!(GetParent()->GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
+ InvalidateFrame();
+ }
+}
+
+bool
+nsSVGImageFrame::ReflowFinished()
+{
+ mReflowCallbackPosted = false;
+
+ // XXX(seth): We don't need this. The purpose of updating visibility
+ // synchronously is to ensure that animated images start animating
+ // immediately. In the short term, however,
+ // nsImageLoadingContent::OnUnlockedDraw() is enough to ensure that
+ // animations start as soon as the image is painted for the first time, and in
+ // the long term we want to update visibility information from the display
+ // list whenever we paint, so we don't actually need to do this. However, to
+ // avoid behavior changes during the transition from the old image visibility
+ // code, we'll leave it in for now.
+ UpdateVisibilitySynchronously();
+
+ return false;
+}
+
+void
+nsSVGImageFrame::ReflowCallbackCanceled()
+{
+ mReflowCallbackPosted = false;
+}
+
+uint16_t
+nsSVGImageFrame::GetHitTestFlags()
+{
+ uint16_t flags = 0;
+
+ switch (StyleUserInterface()->mPointerEvents) {
+ case NS_STYLE_POINTER_EVENTS_NONE:
+ break;
+ case NS_STYLE_POINTER_EVENTS_VISIBLEPAINTED:
+ case NS_STYLE_POINTER_EVENTS_AUTO:
+ if (StyleVisibility()->IsVisible()) {
+ /* XXX: should check pixel transparency */
+ flags |= SVG_HIT_TEST_FILL;
+ }
+ break;
+ case NS_STYLE_POINTER_EVENTS_VISIBLEFILL:
+ case NS_STYLE_POINTER_EVENTS_VISIBLESTROKE:
+ case NS_STYLE_POINTER_EVENTS_VISIBLE:
+ if (StyleVisibility()->IsVisible()) {
+ flags |= SVG_HIT_TEST_FILL;
+ }
+ break;
+ case NS_STYLE_POINTER_EVENTS_PAINTED:
+ /* XXX: should check pixel transparency */
+ flags |= SVG_HIT_TEST_FILL;
+ break;
+ case NS_STYLE_POINTER_EVENTS_FILL:
+ case NS_STYLE_POINTER_EVENTS_STROKE:
+ case NS_STYLE_POINTER_EVENTS_ALL:
+ flags |= SVG_HIT_TEST_FILL;
+ break;
+ default:
+ NS_ERROR("not reached");
+ break;
+ }
+
+ return flags;
+}
+
+//----------------------------------------------------------------------
+// nsSVGImageListener implementation
+
+NS_IMPL_ISUPPORTS(nsSVGImageListener, imgINotificationObserver)
+
+nsSVGImageListener::nsSVGImageListener(nsSVGImageFrame *aFrame) : mFrame(aFrame)
+{
+}
+
+NS_IMETHODIMP
+nsSVGImageListener::Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData)
+{
+ if (!mFrame)
+ return NS_ERROR_FAILURE;
+
+ if (aType == imgINotificationObserver::LOAD_COMPLETE) {
+ mFrame->InvalidateFrame();
+ nsLayoutUtils::PostRestyleEvent(
+ mFrame->GetContent()->AsElement(), nsRestyleHint(0),
+ nsChangeHint_InvalidateRenderingObservers);
+ nsSVGUtils::ScheduleReflowSVG(mFrame);
+ }
+
+ if (aType == imgINotificationObserver::FRAME_UPDATE) {
+ // No new dimensions, so we don't need to call
+ // nsSVGUtils::InvalidateAndScheduleBoundsUpdate.
+ nsLayoutUtils::PostRestyleEvent(
+ mFrame->GetContent()->AsElement(), nsRestyleHint(0),
+ nsChangeHint_InvalidateRenderingObservers);
+ mFrame->InvalidateFrame();
+ }
+
+ if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
+ // Called once the resource's dimensions have been obtained.
+ aRequest->GetImage(getter_AddRefs(mFrame->mImageContainer));
+ mFrame->InvalidateFrame();
+ nsLayoutUtils::PostRestyleEvent(
+ mFrame->GetContent()->AsElement(), nsRestyleHint(0),
+ nsChangeHint_InvalidateRenderingObservers);
+ nsSVGUtils::ScheduleReflowSVG(mFrame);
+ }
+
+ return NS_OK;
+}
+