Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 220 insertions, 0 deletions

diff --git a/dom/base/AnonymousContent.cpp b/dom/base/AnonymousContent.cpp
new file mode 100644
index 0000000000..03849d4faf
--- /dev/null
+++ b/dom/base/AnonymousContent.cpp
@@ -0,0 +1,220 @@
+/* -*- 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 "AnonymousContent.h"
+#include "mozilla/PresShell.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/AnonymousContentBinding.h"
+#include "nsComputedDOMStyle.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIFrame.h"
+#include "nsStyledElement.h"
+#include "HTMLCanvasElement.h"
+
+namespace mozilla::dom {
+
+// Ref counting and cycle collection
+NS_IMPL_CYCLE_COLLECTION(AnonymousContent, mContentNode)
+
+AnonymousContent::AnonymousContent(already_AddRefed<Element> aContentNode)
+    : mContentNode(aContentNode) {
+  MOZ_ASSERT(mContentNode);
+}
+
+AnonymousContent::~AnonymousContent() = default;
+
+void AnonymousContent::SetTextContentForElement(const nsAString& aElementId,
+                                                const nsAString& aText,
+                                                ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  element->SetTextContent(aText, aRv);
+}
+
+void AnonymousContent::GetTextContentForElement(const nsAString& aElementId,
+                                                DOMString& aText,
+                                                ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  element->GetTextContent(aText, aRv);
+}
+
+void AnonymousContent::SetAttributeForElement(const nsAString& aElementId,
+                                              const nsAString& aName,
+                                              const nsAString& aValue,
+                                              nsIPrincipal* aSubjectPrincipal,
+                                              ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  element->SetAttribute(aName, aValue, aSubjectPrincipal, aRv);
+}
+
+void AnonymousContent::GetAttributeForElement(const nsAString& aElementId,
+                                              const nsAString& aName,
+                                              DOMString& aValue,
+                                              ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  element->GetAttribute(aName, aValue);
+}
+
+void AnonymousContent::RemoveAttributeForElement(const nsAString& aElementId,
+                                                 const nsAString& aName,
+                                                 ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  element->RemoveAttribute(aName, aRv);
+}
+
+already_AddRefed<nsISupports> AnonymousContent::GetCanvasContext(
+    const nsAString& aElementId, const nsAString& aContextId,
+    ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return nullptr;
+  }
+
+  if (!element->IsHTMLElement(nsGkAtoms::canvas)) {
+    return nullptr;
+  }
+
+  nsCOMPtr<nsISupports> context;
+
+  HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(element);
+  canvas->GetContext(aContextId, getter_AddRefs(context));
+
+  return context.forget();
+}
+
+already_AddRefed<Animation> AnonymousContent::SetAnimationForElement(
+    JSContext* aContext, const nsAString& aElementId,
+    JS::Handle<JSObject*> aKeyframes,
+    const UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions,
+    ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return nullptr;
+  }
+
+  return element->Animate(aContext, aKeyframes, aOptions, aRv);
+}
+
+void AnonymousContent::SetCutoutRectsForElement(
+    const nsAString& aElementId, const Sequence<OwningNonNull<DOMRect>>& aRects,
+    ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  nsRegion cutOutRegion;
+  for (const auto& r : aRects) {
+    CSSRect rect(r->X(), r->Y(), r->Width(), r->Height());
+    cutOutRegion.OrWith(CSSRect::ToAppUnits(rect));
+  }
+
+  element->SetProperty(nsGkAtoms::cutoutregion, new nsRegion(cutOutRegion),
+                       nsINode::DeleteProperty<nsRegion>);
+
+  nsIFrame* frame = element->GetPrimaryFrame();
+  if (frame) {
+    frame->SchedulePaint();
+  }
+}
+
+Element* AnonymousContent::GetElementById(const nsAString& aElementId) {
+  // This can be made faster in the future if needed.
+  RefPtr<nsAtom> elementId = NS_Atomize(aElementId);
+  for (nsIContent* node = mContentNode; node;
+       node = node->GetNextNode(mContentNode)) {
+    if (!node->IsElement()) {
+      continue;
+    }
+    nsAtom* id = node->AsElement()->GetID();
+    if (id && id == elementId) {
+      return node->AsElement();
+    }
+  }
+  return nullptr;
+}
+
+bool AnonymousContent::WrapObject(JSContext* aCx,
+                                  JS::Handle<JSObject*> aGivenProto,
+                                  JS::MutableHandle<JSObject*> aReflector) {
+  return AnonymousContent_Binding::Wrap(aCx, this, aGivenProto, aReflector);
+}
+
+void AnonymousContent::GetComputedStylePropertyValue(
+    const nsAString& aElementId, const nsACString& aPropertyName,
+    nsACString& aResult, ErrorResult& aRv) {
+  Element* element = GetElementById(aElementId);
+  if (!element) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  if (!element->OwnerDoc()->GetPresShell()) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  RefPtr<nsComputedDOMStyle> cs = new nsComputedDOMStyle(
+      element, PseudoStyleType::NotPseudo, element->OwnerDoc(),
+      nsComputedDOMStyle::StyleType::All);
+  aRv = cs->GetPropertyValue(aPropertyName, aResult);
+}
+
+void AnonymousContent::GetTargetIdForEvent(Event& aEvent, DOMString& aResult) {
+  nsCOMPtr<Element> el = do_QueryInterface(aEvent.GetOriginalTarget());
+  if (el && el->IsInNativeAnonymousSubtree() && mContentNode->Contains(el)) {
+    aResult.SetKnownLiveAtom(el->GetID(), DOMString::eTreatNullAsNull);
+    return;
+  }
+
+  aResult.SetNull();
+}
+
+void AnonymousContent::SetStyle(const nsACString& aProperty,
+                                const nsACString& aValue, ErrorResult& aRv) {
+  if (!mContentNode->IsHTMLElement()) {
+    aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+    return;
+  }
+
+  nsGenericHTMLElement* element = nsGenericHTMLElement::FromNode(mContentNode);
+  nsCOMPtr<nsICSSDeclaration> declaration = element->Style();
+  declaration->SetProperty(aProperty, aValue, ""_ns, IgnoreErrors());
+}
+
+}  // namespace mozilla::dom