diff options
Diffstat (limited to 'dom/base/DOMPoint.cpp')
-rw-r--r-- | dom/base/DOMPoint.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/dom/base/DOMPoint.cpp b/dom/base/DOMPoint.cpp new file mode 100644 index 0000000000..1a91ea26ce --- /dev/null +++ b/dom/base/DOMPoint.cpp @@ -0,0 +1,136 @@ +/* -*- 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/DOMPoint.h" + +#include <cstdint> +#include "js/StructuredClone.h" +#include "mozilla/Casting.h" +#include "mozilla/ErrorResult.h" +#include "mozilla/MacroForEach.h" +#include "mozilla/RefPtr.h" +#include "mozilla/dom/BindingDeclarations.h" +#include "mozilla/dom/DOMMatrix.h" +#include "mozilla/dom/DOMPointBinding.h" +#include "nsIGlobalObject.h" + +using namespace mozilla; +using namespace mozilla::dom; + +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMPointReadOnly, mParent) + +NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMPointReadOnly, AddRef) +NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMPointReadOnly, Release) + +already_AddRefed<DOMPointReadOnly> DOMPointReadOnly::FromPoint( + const GlobalObject& aGlobal, const DOMPointInit& aParams) { + RefPtr<DOMPointReadOnly> obj = new DOMPointReadOnly( + aGlobal.GetAsSupports(), aParams.mX, aParams.mY, aParams.mZ, aParams.mW); + return obj.forget(); +} + +already_AddRefed<DOMPointReadOnly> DOMPointReadOnly::Constructor( + const GlobalObject& aGlobal, double aX, double aY, double aZ, double aW) { + RefPtr<DOMPointReadOnly> obj = + new DOMPointReadOnly(aGlobal.GetAsSupports(), aX, aY, aZ, aW); + return obj.forget(); +} + +JSObject* DOMPointReadOnly::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return DOMPointReadOnly_Binding::Wrap(aCx, this, aGivenProto); +} + +already_AddRefed<DOMPoint> DOMPointReadOnly::MatrixTransform( + const DOMMatrixInit& aInit, ErrorResult& aRv) { + RefPtr<DOMMatrixReadOnly> matrix = + DOMMatrixReadOnly::FromMatrix(mParent, aInit, aRv); + if (aRv.Failed()) { + return nullptr; + } + DOMPointInit init; + init.mX = this->mX; + init.mY = this->mY; + init.mZ = this->mZ; + init.mW = this->mW; + RefPtr<DOMPoint> point = matrix->TransformPoint(init); + return point.forget(); +} + +// https://drafts.fxtf.org/geometry/#structured-serialization +bool DOMPointReadOnly::WriteStructuredClone( + JSContext* aCx, JSStructuredCloneWriter* aWriter) const { +#define WriteDouble(d) \ + JS_WriteUint32Pair(aWriter, (BitwiseCast<uint64_t>(d) >> 32) & 0xffffffff, \ + BitwiseCast<uint64_t>(d) & 0xffffffff) + + return WriteDouble(mX) && WriteDouble(mY) && WriteDouble(mZ) && + WriteDouble(mW); + +#undef WriteDouble +} + +// static +already_AddRefed<DOMPointReadOnly> DOMPointReadOnly::ReadStructuredClone( + JSContext* aCx, nsIGlobalObject* aGlobal, + JSStructuredCloneReader* aReader) { + RefPtr<DOMPointReadOnly> retval = new DOMPointReadOnly(aGlobal); + if (!retval->ReadStructuredClone(aReader)) { + return nullptr; + } + return retval.forget(); + ; +} + +bool DOMPointReadOnly::ReadStructuredClone(JSStructuredCloneReader* aReader) { + uint32_t high; + uint32_t low; + +#define ReadDouble(d) \ + if (!JS_ReadUint32Pair(aReader, &high, &low)) { \ + return false; \ + } \ + (*(d) = BitwiseCast<double>(static_cast<uint64_t>(high) << 32 | low)) + + ReadDouble(&mX); + ReadDouble(&mY); + ReadDouble(&mZ); + ReadDouble(&mW); + + return true; +#undef ReadDouble +} + +already_AddRefed<DOMPoint> DOMPoint::FromPoint(const GlobalObject& aGlobal, + const DOMPointInit& aParams) { + RefPtr<DOMPoint> obj = new DOMPoint(aGlobal.GetAsSupports(), aParams.mX, + aParams.mY, aParams.mZ, aParams.mW); + return obj.forget(); +} + +already_AddRefed<DOMPoint> DOMPoint::Constructor(const GlobalObject& aGlobal, + double aX, double aY, + double aZ, double aW) { + RefPtr<DOMPoint> obj = new DOMPoint(aGlobal.GetAsSupports(), aX, aY, aZ, aW); + return obj.forget(); +} + +JSObject* DOMPoint::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return DOMPoint_Binding::Wrap(aCx, this, aGivenProto); +} + +// static +already_AddRefed<DOMPoint> DOMPoint::ReadStructuredClone( + JSContext* aCx, nsIGlobalObject* aGlobal, + JSStructuredCloneReader* aReader) { + RefPtr<DOMPoint> retval = new DOMPoint(aGlobal); + if (!retval->ReadStructuredClone(aReader)) { + return nullptr; + } + return retval.forget(); + ; +} |