/* -*- 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