Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 322 insertions, 0 deletions

diff --git a/dom/svg/SVGImageElement.cpp b/dom/svg/SVGImageElement.cpp
new file mode 100644
index 0000000000..f6fb143c52
--- /dev/null
+++ b/dom/svg/SVGImageElement.cpp
@@ -0,0 +1,322 @@
+/* -*- 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/SVGImageElement.h"
+
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/gfx/2D.h"
+#include "nsCOMPtr.h"
+#include "nsIURI.h"
+#include "nsNetUtil.h"
+#include "imgINotificationObserver.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/SVGImageElementBinding.h"
+#include "mozilla/dom/SVGLengthBinding.h"
+#include "mozilla/dom/UserActivation.h"
+#include "nsContentUtils.h"
+#include "SVGGeometryProperty.h"
+
+NS_IMPL_NS_NEW_SVG_ELEMENT(Image)
+
+using namespace mozilla::gfx;
+
+namespace mozilla::dom {
+
+JSObject* SVGImageElement::WrapNode(JSContext* aCx,
+                                    JS::Handle<JSObject*> aGivenProto) {
+  return SVGImageElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+SVGElement::LengthInfo SVGImageElement::sLengthInfo[4] = {
+    {nsGkAtoms::x, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
+     SVGContentUtils::X},
+    {nsGkAtoms::y, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
+     SVGContentUtils::Y},
+    {nsGkAtoms::width, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
+     SVGContentUtils::X},
+    {nsGkAtoms::height, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
+     SVGContentUtils::Y},
+};
+
+SVGElement::StringInfo SVGImageElement::sStringInfo[2] = {
+    {nsGkAtoms::href, kNameSpaceID_None, true},
+    {nsGkAtoms::href, kNameSpaceID_XLink, true}};
+
+//----------------------------------------------------------------------
+// nsISupports methods
+
+NS_IMPL_ISUPPORTS_INHERITED(SVGImageElement, SVGImageElementBase,
+                            imgINotificationObserver, nsIImageLoadingContent)
+
+//----------------------------------------------------------------------
+// Implementation
+
+namespace SVGT = SVGGeometryProperty::Tags;
+
+SVGImageElement::SVGImageElement(
+    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
+    : SVGImageElementBase(std::move(aNodeInfo)) {
+  // We start out broken
+  AddStatesSilently(ElementState::BROKEN);
+}
+
+SVGImageElement::~SVGImageElement() { nsImageLoadingContent::Destroy(); }
+
+nsCSSPropertyID SVGImageElement::GetCSSPropertyIdForAttrEnum(
+    uint8_t aAttrEnum) {
+  switch (aAttrEnum) {
+    case ATTR_X:
+      return eCSSProperty_x;
+    case ATTR_Y:
+      return eCSSProperty_y;
+    case ATTR_WIDTH:
+      return eCSSProperty_width;
+    case ATTR_HEIGHT:
+      return eCSSProperty_height;
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unknown attr enum");
+      return eCSSProperty_UNKNOWN;
+  }
+}
+//----------------------------------------------------------------------
+// nsINode methods
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGImageElement)
+
+//----------------------------------------------------------------------
+
+already_AddRefed<DOMSVGAnimatedLength> SVGImageElement::X() {
+  return mLengthAttributes[ATTR_X].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<DOMSVGAnimatedLength> SVGImageElement::Y() {
+  return mLengthAttributes[ATTR_Y].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<DOMSVGAnimatedLength> SVGImageElement::Width() {
+  return mLengthAttributes[ATTR_WIDTH].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<DOMSVGAnimatedLength> SVGImageElement::Height() {
+  return mLengthAttributes[ATTR_HEIGHT].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<DOMSVGAnimatedPreserveAspectRatio>
+SVGImageElement::PreserveAspectRatio() {
+  return mPreserveAspectRatio.ToDOMAnimatedPreserveAspectRatio(this);
+}
+
+already_AddRefed<DOMSVGAnimatedString> SVGImageElement::Href() {
+  return mStringAttributes[HREF].IsExplicitlySet()
+             ? mStringAttributes[HREF].ToDOMAnimatedString(this)
+             : mStringAttributes[XLINK_HREF].ToDOMAnimatedString(this);
+}
+
+void SVGImageElement::GetDecoding(nsAString& aValue) {
+  GetEnumAttr(nsGkAtoms::decoding, kDecodingTableDefault->tag, aValue);
+}
+
+already_AddRefed<Promise> SVGImageElement::Decode(ErrorResult& aRv) {
+  return nsImageLoadingContent::QueueDecodeAsync(aRv);
+}
+
+//----------------------------------------------------------------------
+
+nsresult SVGImageElement::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);
+
+  // 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 SVGImageElement::ShouldLoadImage() const {
+  return LoadingEnabled() && OwnerDoc()->ShouldLoadImages();
+}
+
+//----------------------------------------------------------------------
+// EventTarget methods:
+
+void SVGImageElement::AsyncEventRunning(AsyncEventDispatcher* aEvent) {
+  nsImageLoadingContent::AsyncEventRunning(aEvent);
+}
+
+//----------------------------------------------------------------------
+// nsIContent methods:
+
+bool SVGImageElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
+                                     const nsAString& aValue,
+                                     nsIPrincipal* aMaybeScriptedPrincipal,
+                                     nsAttrValue& aResult) {
+  if (aNamespaceID == kNameSpaceID_None) {
+    if (aAttribute == nsGkAtoms::decoding) {
+      return aResult.ParseEnumValue(aValue, kDecodingTable, false,
+                                    kDecodingTableDefault);
+    }
+  }
+
+  return SVGImageElementBase::ParseAttribute(aNamespaceID, aAttribute, aValue,
+                                             aMaybeScriptedPrincipal, aResult);
+}
+
+nsresult SVGImageElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
+                                       const nsAttrValue* aValue,
+                                       const nsAttrValue* aOldValue,
+                                       nsIPrincipal* aSubjectPrincipal,
+                                       bool aNotify) {
+  if (aName == nsGkAtoms::href && (aNamespaceID == kNameSpaceID_None ||
+                                   aNamespaceID == kNameSpaceID_XLink)) {
+    if (aValue) {
+      if (ShouldLoadImage()) {
+        LoadSVGImage(true, aNotify);
+      }
+    } else {
+      CancelImageRequests(aNotify);
+    }
+  } else if (aName == nsGkAtoms::decoding &&
+             aNamespaceID == kNameSpaceID_None) {
+    // Request sync or async image decoding.
+    SetSyncDecodingHint(
+        aValue && static_cast<ImageDecodingType>(aValue->GetEnumValue()) ==
+                      ImageDecodingType::Sync);
+  }
+  return SVGImageElementBase::AfterSetAttr(
+      aNamespaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
+}
+
+void SVGImageElement::MaybeLoadSVGImage() {
+  if ((mStringAttributes[HREF].IsExplicitlySet() ||
+       mStringAttributes[XLINK_HREF].IsExplicitlySet()) &&
+      (NS_FAILED(LoadSVGImage(false, true)) || !LoadingEnabled())) {
+    CancelImageRequests(true);
+  }
+}
+
+nsresult SVGImageElement::BindToTree(BindContext& aContext, nsINode& aParent) {
+  nsresult rv = SVGImageElementBase::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::SVGImageElement::MaybeLoadSVGImage", this,
+                          &SVGImageElement::MaybeLoadSVGImage));
+  }
+
+  return rv;
+}
+
+void SVGImageElement::UnbindFromTree(bool aNullParent) {
+  nsImageLoadingContent::UnbindFromTree(aNullParent);
+  SVGImageElementBase::UnbindFromTree(aNullParent);
+}
+
+ElementState SVGImageElement::IntrinsicState() const {
+  return SVGImageElementBase::IntrinsicState() |
+         nsImageLoadingContent::ImageState();
+}
+
+void SVGImageElement::DestroyContent() {
+  nsImageLoadingContent::Destroy();
+  SVGImageElementBase::DestroyContent();
+}
+
+NS_IMETHODIMP_(bool)
+SVGImageElement::IsAttributeMapped(const nsAtom* name) const {
+  static const MappedAttributeEntry* const map[] = {
+      sViewportsMap,
+  };
+
+  return IsInLengthInfo(name, sLengthInfo) ||
+         FindAttributeDependence(name, map) ||
+         SVGImageElementBase::IsAttributeMapped(name);
+}
+
+//----------------------------------------------------------------------
+// SVGGeometryElement methods
+
+/* For the purposes of the update/invalidation logic pretend to
+   be a rectangle. */
+bool SVGImageElement::GetGeometryBounds(
+    Rect* aBounds, const StrokeOptions& aStrokeOptions,
+    const Matrix& aToBoundsSpace, const Matrix* aToNonScalingStrokeSpace) {
+  Rect rect;
+
+  DebugOnly<bool> ok =
+      SVGGeometryProperty::ResolveAll<SVGT::X, SVGT::Y, SVGT::Width,
+                                      SVGT::Height>(this, &rect.x, &rect.y,
+                                                    &rect.width, &rect.height);
+  MOZ_ASSERT(ok, "SVGGeometryProperty::ResolveAll failed");
+
+  if (rect.IsEmpty()) {
+    // Rendering of the element disabled
+    rect.SetEmpty();  // Make sure width/height are zero and not negative
+  }
+
+  *aBounds = aToBoundsSpace.TransformBounds(rect);
+  return true;
+}
+
+already_AddRefed<Path> SVGImageElement::BuildPath(PathBuilder* aBuilder) {
+  // To get bound, the faster method GetGeometryBounds() should already return
+  // success. For render and hittest, SVGImageFrame should have its own
+  // implementation that doesn't need to build path for an image.
+  MOZ_ASSERT_UNREACHABLE(
+      "There is no reason to call BuildPath for SVGImageElement");
+  return nullptr;
+}
+
+//----------------------------------------------------------------------
+// SVGElement methods
+
+/* virtual */
+bool SVGImageElement::HasValidDimensions() const {
+  float width, height;
+
+  if (SVGGeometryProperty::ResolveAll<SVGT::Width, SVGT::Height>(this, &width,
+                                                                 &height)) {
+    return width > 0 && height > 0;
+  }
+  // This function might be called for an element in display:none subtree
+  // (e.g. SMIL animateMotion), we fall back to use SVG attributes.
+  return (!mLengthAttributes[ATTR_WIDTH].IsExplicitlySet() ||
+          mLengthAttributes[ATTR_WIDTH].GetAnimValInSpecifiedUnits() > 0) &&
+         (!mLengthAttributes[ATTR_HEIGHT].IsExplicitlySet() ||
+          mLengthAttributes[ATTR_HEIGHT].GetAnimValInSpecifiedUnits() > 0);
+}
+
+SVGElement::LengthAttributesInfo SVGImageElement::GetLengthInfo() {
+  return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
+                              ArrayLength(sLengthInfo));
+}
+
+SVGAnimatedPreserveAspectRatio*
+SVGImageElement::GetAnimatedPreserveAspectRatio() {
+  return &mPreserveAspectRatio;
+}
+
+SVGElement::StringAttributesInfo SVGImageElement::GetStringInfo() {
+  return StringAttributesInfo(mStringAttributes, sStringInfo,
+                              ArrayLength(sStringInfo));
+}
+
+}  // namespace mozilla::dom