Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 360 insertions, 0 deletions

diff --git a/dom/svg/SVGFEImageElement.cpp b/dom/svg/SVGFEImageElement.cpp
new file mode 100644
index 0000000000..7aac0ad133
--- /dev/null
+++ b/dom/svg/SVGFEImageElement.cpp
@@ -0,0 +1,360 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "mozilla/dom/SVGFEImageElement.h"
+
+#include "mozilla/SVGObserverUtils.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/BindContext.h"
+#include "mozilla/dom/SVGFEImageElementBinding.h"
+#include "mozilla/dom/SVGFilterElement.h"
+#include "mozilla/dom/UserActivation.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/RefPtr.h"
+#include "nsContentUtils.h"
+#include "nsLayoutUtils.h"
+#include "nsNetUtil.h"
+#include "imgIContainer.h"
+#include "gfx2DGlue.h"
+
+NS_IMPL_NS_NEW_SVG_ELEMENT(FEImage)
+
+using namespace mozilla::gfx;
+
+namespace mozilla::dom {
+
+JSObject* SVGFEImageElement::WrapNode(JSContext* aCx,
+                                      JS::Handle<JSObject*> aGivenProto) {
+  return SVGFEImageElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+SVGElement::StringInfo SVGFEImageElement::sStringInfo[3] = {
+    {nsGkAtoms::result, kNameSpaceID_None, true},
+    {nsGkAtoms::href, kNameSpaceID_None, true},
+    {nsGkAtoms::href, kNameSpaceID_XLink, true}};
+
+//----------------------------------------------------------------------
+// nsISupports methods
+
+NS_IMPL_ISUPPORTS_INHERITED(SVGFEImageElement, SVGFEImageElementBase,
+                            imgINotificationObserver, nsIImageLoadingContent)
+
+//----------------------------------------------------------------------
+// Implementation
+
+SVGFEImageElement::SVGFEImageElement(
+    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
+    : SVGFEImageElementBase(std::move(aNodeInfo)), mImageAnimationMode(0) {
+  // We start out broken
+  AddStatesSilently(ElementState::BROKEN);
+}
+
+SVGFEImageElement::~SVGFEImageElement() { nsImageLoadingContent::Destroy(); }
+
+//----------------------------------------------------------------------
+
+nsresult SVGFEImageElement::LoadSVGImage(bool aForce, bool aNotify) {
+  // resolve href attribute
+  nsIURI* baseURI = GetBaseURI();
+
+  nsAutoString href;
+  if (mStringAttributes[HREF].IsExplicitlySet()) {
+    mStringAttributes[HREF].GetAnimValue(href, this);
+  } else {
+    mStringAttributes[XLINK_HREF].GetAnimValue(href, this);
+  }
+  href.Trim(" \t\n\r");
+
+  if (baseURI && !href.IsEmpty()) NS_MakeAbsoluteURI(href, href, baseURI);
+
+  // Make sure we don't get in a recursive death-spiral
+  Document* doc = OwnerDoc();
+  nsCOMPtr<nsIURI> hrefAsURI;
+  if (NS_SUCCEEDED(StringToURI(href, doc, getter_AddRefs(hrefAsURI)))) {
+    bool isEqual;
+    if (NS_SUCCEEDED(hrefAsURI->Equals(baseURI, &isEqual)) && isEqual) {
+      // Image URI matches our URI exactly! Bail out.
+      return NS_OK;
+    }
+  }
+
+  // Mark channel as urgent-start before load image if the image load is
+  // initaiated by a user interaction.
+  mUseUrgentStartForChannel = UserActivation::IsHandlingUserInput();
+  return LoadImage(href, aForce, aNotify, eImageLoadType_Normal);
+}
+
+bool SVGFEImageElement::ShouldLoadImage() const {
+  return LoadingEnabled() && OwnerDoc()->ShouldLoadImages();
+}
+
+//----------------------------------------------------------------------
+// EventTarget methods:
+
+void SVGFEImageElement::AsyncEventRunning(AsyncEventDispatcher* aEvent) {
+  nsImageLoadingContent::AsyncEventRunning(aEvent);
+}
+
+//----------------------------------------------------------------------
+// nsIContent methods:
+
+NS_IMETHODIMP_(bool)
+SVGFEImageElement::IsAttributeMapped(const nsAtom* name) const {
+  static const MappedAttributeEntry* const map[] = {sGraphicsMap};
+
+  return FindAttributeDependence(name, map) ||
+         SVGFEImageElementBase::IsAttributeMapped(name);
+}
+
+nsresult SVGFEImageElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
+                                         const nsAttrValue* aValue,
+                                         const nsAttrValue* aOldValue,
+                                         nsIPrincipal* aSubjectPrincipal,
+                                         bool aNotify) {
+  if (aName == nsGkAtoms::href && (aNamespaceID == kNameSpaceID_XLink ||
+                                   aNamespaceID == kNameSpaceID_None)) {
+    if (aValue) {
+      if (ShouldLoadImage()) {
+        LoadSVGImage(true, aNotify);
+      }
+    } else {
+      CancelImageRequests(aNotify);
+    }
+  }
+
+  return SVGFEImageElementBase::AfterSetAttr(
+      aNamespaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
+}
+
+void SVGFEImageElement::MaybeLoadSVGImage() {
+  if ((mStringAttributes[HREF].IsExplicitlySet() ||
+       mStringAttributes[XLINK_HREF].IsExplicitlySet()) &&
+      (NS_FAILED(LoadSVGImage(false, true)) || !LoadingEnabled())) {
+    CancelImageRequests(true);
+  }
+}
+
+nsresult SVGFEImageElement::BindToTree(BindContext& aContext,
+                                       nsINode& aParent) {
+  nsresult rv = SVGFEImageElementBase::BindToTree(aContext, aParent);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsImageLoadingContent::BindToTree(aContext, aParent);
+
+  if ((mStringAttributes[HREF].IsExplicitlySet() ||
+       mStringAttributes[XLINK_HREF].IsExplicitlySet()) &&
+      ShouldLoadImage()) {
+    nsContentUtils::AddScriptRunner(
+        NewRunnableMethod("dom::SVGFEImageElement::MaybeLoadSVGImage", this,
+                          &SVGFEImageElement::MaybeLoadSVGImage));
+  }
+
+  if (aContext.InComposedDoc()) {
+    aContext.OwnerDoc().SetUseCounter(eUseCounter_custom_feImage);
+  }
+
+  return rv;
+}
+
+void SVGFEImageElement::UnbindFromTree(bool aNullParent) {
+  nsImageLoadingContent::UnbindFromTree(aNullParent);
+  SVGFEImageElementBase::UnbindFromTree(aNullParent);
+}
+
+ElementState SVGFEImageElement::IntrinsicState() const {
+  return SVGFEImageElementBase::IntrinsicState() |
+         nsImageLoadingContent::ImageState();
+}
+
+void SVGFEImageElement::DestroyContent() {
+  nsImageLoadingContent::Destroy();
+  SVGFEImageElementBase::DestroyContent();
+}
+
+//----------------------------------------------------------------------
+// nsINode methods
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGFEImageElement)
+
+already_AddRefed<DOMSVGAnimatedString> SVGFEImageElement::Href() {
+  return mStringAttributes[HREF].IsExplicitlySet()
+             ? mStringAttributes[HREF].ToDOMAnimatedString(this)
+             : mStringAttributes[XLINK_HREF].ToDOMAnimatedString(this);
+}
+
+//----------------------------------------------------------------------
+// nsIDOMSVGFEImageElement methods
+
+FilterPrimitiveDescription SVGFEImageElement::GetPrimitiveDescription(
+    SVGFilterInstance* aInstance, const IntRect& aFilterSubregion,
+    const nsTArray<bool>& aInputsAreTainted,
+    nsTArray<RefPtr<SourceSurface>>& aInputImages) {
+  nsIFrame* frame = GetPrimaryFrame();
+  if (!frame) {
+    return FilterPrimitiveDescription();
+  }
+
+  nsCOMPtr<imgIRequest> currentRequest;
+  GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
+             getter_AddRefs(currentRequest));
+
+  nsCOMPtr<imgIContainer> imageContainer;
+  if (currentRequest) {
+    currentRequest->GetImage(getter_AddRefs(imageContainer));
+  }
+
+  RefPtr<SourceSurface> image;
+  if (imageContainer) {
+    uint32_t flags =
+        imgIContainer::FLAG_SYNC_DECODE | imgIContainer::FLAG_ASYNC_NOTIFY;
+    image = imageContainer->GetFrame(imgIContainer::FRAME_CURRENT, flags);
+  }
+
+  if (!image) {
+    return FilterPrimitiveDescription();
+  }
+
+  IntSize nativeSize;
+  imageContainer->GetWidth(&nativeSize.width);
+  imageContainer->GetHeight(&nativeSize.height);
+
+  Matrix viewBoxTM = SVGContentUtils::GetViewBoxTransform(
+      aFilterSubregion.width, aFilterSubregion.height, 0, 0, nativeSize.width,
+      nativeSize.height, mPreserveAspectRatio);
+  Matrix TM = viewBoxTM;
+  TM.PostTranslate(aFilterSubregion.x, aFilterSubregion.y);
+
+  SamplingFilter samplingFilter =
+      nsLayoutUtils::GetSamplingFilterForFrame(frame);
+
+  ImageAttributes atts;
+  atts.mFilter = (uint32_t)samplingFilter;
+  atts.mTransform = TM;
+
+  // Append the image to aInputImages and store its index in the description.
+  size_t imageIndex = aInputImages.Length();
+  aInputImages.AppendElement(image);
+  atts.mInputIndex = (uint32_t)imageIndex;
+  return FilterPrimitiveDescription(AsVariant(std::move(atts)));
+}
+
+bool SVGFEImageElement::AttributeAffectsRendering(int32_t aNameSpaceID,
+                                                  nsAtom* aAttribute) const {
+  // nsGkAtoms::href is deliberately omitted as the frame has special
+  // handling to load the image
+  return SVGFEImageElementBase::AttributeAffectsRendering(aNameSpaceID,
+                                                          aAttribute) ||
+         (aNameSpaceID == kNameSpaceID_None &&
+          aAttribute == nsGkAtoms::preserveAspectRatio);
+}
+
+bool SVGFEImageElement::OutputIsTainted(const nsTArray<bool>& aInputsAreTainted,
+                                        nsIPrincipal* aReferencePrincipal) {
+  nsresult rv;
+  nsCOMPtr<imgIRequest> currentRequest;
+  GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
+             getter_AddRefs(currentRequest));
+
+  if (!currentRequest) {
+    return false;
+  }
+
+  nsCOMPtr<nsIPrincipal> principal;
+  rv = currentRequest->GetImagePrincipal(getter_AddRefs(principal));
+  if (NS_FAILED(rv) || !principal) {
+    return true;
+  }
+
+  int32_t corsmode;
+  if (NS_SUCCEEDED(currentRequest->GetCORSMode(&corsmode)) &&
+      corsmode != CORS_NONE) {
+    // If CORS was used to load the image, the page is allowed to read from it.
+    return false;
+  }
+
+  if (aReferencePrincipal->Subsumes(principal)) {
+    // The page is allowed to read from the image.
+    return false;
+  }
+
+  return true;
+}
+
+//----------------------------------------------------------------------
+// SVGElement methods
+
+already_AddRefed<DOMSVGAnimatedPreserveAspectRatio>
+SVGFEImageElement::PreserveAspectRatio() {
+  return mPreserveAspectRatio.ToDOMAnimatedPreserveAspectRatio(this);
+}
+
+SVGAnimatedPreserveAspectRatio*
+SVGFEImageElement::GetAnimatedPreserveAspectRatio() {
+  return &mPreserveAspectRatio;
+}
+
+SVGElement::StringAttributesInfo SVGFEImageElement::GetStringInfo() {
+  return StringAttributesInfo(mStringAttributes, sStringInfo,
+                              ArrayLength(sStringInfo));
+}
+
+//----------------------------------------------------------------------
+// nsIImageLoadingContent methods
+NS_IMETHODIMP_(void)
+SVGFEImageElement::FrameCreated(nsIFrame* aFrame) {
+  nsImageLoadingContent::FrameCreated(aFrame);
+
+  uint64_t mode = aFrame->PresContext()->ImageAnimationMode();
+  if (mode == mImageAnimationMode) {
+    return;
+  }
+
+  mImageAnimationMode = mode;
+
+  if (mPendingRequest) {
+    nsCOMPtr<imgIContainer> container;
+    mPendingRequest->GetImage(getter_AddRefs(container));
+    if (container) {
+      container->SetAnimationMode(mode);
+    }
+  }
+
+  if (mCurrentRequest) {
+    nsCOMPtr<imgIContainer> container;
+    mCurrentRequest->GetImage(getter_AddRefs(container));
+    if (container) {
+      container->SetAnimationMode(mode);
+    }
+  }
+}
+
+//----------------------------------------------------------------------
+// imgINotificationObserver methods
+
+void SVGFEImageElement::Notify(imgIRequest* aRequest, int32_t aType,
+                               const nsIntRect* aData) {
+  nsImageLoadingContent::Notify(aRequest, aType, aData);
+
+  if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
+    // Request a decode
+    nsCOMPtr<imgIContainer> container;
+    aRequest->GetImage(getter_AddRefs(container));
+    MOZ_ASSERT(container, "who sent the notification then?");
+    container->StartDecoding(imgIContainer::FLAG_NONE);
+    container->SetAnimationMode(mImageAnimationMode);
+  }
+
+  if (aType == imgINotificationObserver::LOAD_COMPLETE ||
+      aType == imgINotificationObserver::FRAME_UPDATE ||
+      aType == imgINotificationObserver::SIZE_AVAILABLE) {
+    if (GetParent() && GetParent()->IsSVGElement(nsGkAtoms::filter)) {
+      SVGObserverUtils::InvalidateDirectRenderingObservers(
+          static_cast<SVGFilterElement*>(GetParent()));
+    }
+  }
+}
+
+}  // namespace mozilla::dom