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-rw-r--r--dom/base/AnonymousContent.cpp212
1 files changed, 212 insertions, 0 deletions
diff --git a/dom/base/AnonymousContent.cpp b/dom/base/AnonymousContent.cpp
new file mode 100644
index 000000000..1df36b048
--- /dev/null
+++ b/dom/base/AnonymousContent.cpp
@@ -0,0 +1,212 @@
+/* -*- 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/dom/Element.h"
+#include "mozilla/dom/AnonymousContentBinding.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIDocument.h"
+#include "nsIDOMHTMLCollection.h"
+#include "nsIFrame.h"
+#include "nsStyledElement.h"
+#include "HTMLCanvasElement.h"
+
+namespace mozilla {
+namespace dom {
+
+// Ref counting and cycle collection
+NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(AnonymousContent, AddRef)
+NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(AnonymousContent, Release)
+NS_IMPL_CYCLE_COLLECTION(AnonymousContent, mContentNode)
+
+AnonymousContent::AnonymousContent(Element* aContentNode) :
+ mContentNode(aContentNode)
+{}
+
+AnonymousContent::~AnonymousContent()
+{
+}
+
+Element*
+AnonymousContent::GetContentNode()
+{
+ return mContentNode;
+}
+
+void
+AnonymousContent::SetContentNode(Element* aContentNode)
+{
+ mContentNode = aContentNode;
+}
+
+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,
+ ErrorResult& aRv)
+{
+ Element* element = GetElementById(aElementId);
+ if (!element) {
+ aRv.Throw(NS_ERROR_NOT_AVAILABLE);
+ return;
+ }
+
+ element->SetAttribute(aName, aValue, 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.
+ nsCOMPtr<nsIAtom> elementId = NS_Atomize(aElementId);
+ for (nsIContent* node = mContentNode; node;
+ node = node->GetNextNode(mContentNode)) {
+ if (!node->IsElement()) {
+ continue;
+ }
+ nsIAtom* 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 AnonymousContentBinding::Wrap(aCx, this, aGivenProto, aReflector);
+}
+
+} // namespace dom
+} // namespace mozilla