зеркало из https://github.com/mozilla/gecko-dev.git
134 строки
4.4 KiB
C++
134 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/DOMPoint.h"
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#include <cstdint>
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#include "js/StructuredClone.h"
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#include "mozilla/Casting.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/MacroForEach.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/dom/BindingDeclarations.h"
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#include "mozilla/dom/DOMMatrix.h"
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#include "mozilla/dom/DOMPointBinding.h"
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#include "nsIGlobalObject.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(DOMPointReadOnly, mParent)
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already_AddRefed<DOMPointReadOnly> DOMPointReadOnly::FromPoint(
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const GlobalObject& aGlobal, const DOMPointInit& aParams) {
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RefPtr<DOMPointReadOnly> obj = new DOMPointReadOnly(
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aGlobal.GetAsSupports(), aParams.mX, aParams.mY, aParams.mZ, aParams.mW);
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return obj.forget();
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}
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already_AddRefed<DOMPointReadOnly> DOMPointReadOnly::Constructor(
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const GlobalObject& aGlobal, double aX, double aY, double aZ, double aW) {
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RefPtr<DOMPointReadOnly> obj =
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new DOMPointReadOnly(aGlobal.GetAsSupports(), aX, aY, aZ, aW);
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return obj.forget();
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}
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JSObject* DOMPointReadOnly::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return DOMPointReadOnly_Binding::Wrap(aCx, this, aGivenProto);
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}
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already_AddRefed<DOMPoint> DOMPointReadOnly::MatrixTransform(
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const DOMMatrixInit& aInit, ErrorResult& aRv) {
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RefPtr<DOMMatrixReadOnly> matrix =
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DOMMatrixReadOnly::FromMatrix(mParent, aInit, aRv);
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if (aRv.Failed()) {
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return nullptr;
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}
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DOMPointInit init;
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init.mX = this->mX;
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init.mY = this->mY;
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init.mZ = this->mZ;
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init.mW = this->mW;
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RefPtr<DOMPoint> point = matrix->TransformPoint(init);
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return point.forget();
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}
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// https://drafts.fxtf.org/geometry/#structured-serialization
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bool DOMPointReadOnly::WriteStructuredClone(
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JSContext* aCx, JSStructuredCloneWriter* aWriter) const {
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#define WriteDouble(d) \
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JS_WriteUint32Pair(aWriter, (BitwiseCast<uint64_t>(d) >> 32) & 0xffffffff, \
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BitwiseCast<uint64_t>(d) & 0xffffffff)
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return WriteDouble(mX) && WriteDouble(mY) && WriteDouble(mZ) &&
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WriteDouble(mW);
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#undef WriteDouble
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}
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// static
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already_AddRefed<DOMPointReadOnly> DOMPointReadOnly::ReadStructuredClone(
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JSContext* aCx, nsIGlobalObject* aGlobal,
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JSStructuredCloneReader* aReader) {
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RefPtr<DOMPointReadOnly> retval = new DOMPointReadOnly(aGlobal);
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if (!retval->ReadStructuredClone(aReader)) {
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return nullptr;
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}
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return retval.forget();
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;
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}
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bool DOMPointReadOnly::ReadStructuredClone(JSStructuredCloneReader* aReader) {
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uint32_t high;
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uint32_t low;
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#define ReadDouble(d) \
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if (!JS_ReadUint32Pair(aReader, &high, &low)) { \
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return false; \
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} \
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(*(d) = BitwiseCast<double>(static_cast<uint64_t>(high) << 32 | low))
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ReadDouble(&mX);
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ReadDouble(&mY);
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ReadDouble(&mZ);
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ReadDouble(&mW);
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return true;
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#undef ReadDouble
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}
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already_AddRefed<DOMPoint> DOMPoint::FromPoint(const GlobalObject& aGlobal,
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const DOMPointInit& aParams) {
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RefPtr<DOMPoint> obj = new DOMPoint(aGlobal.GetAsSupports(), aParams.mX,
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aParams.mY, aParams.mZ, aParams.mW);
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return obj.forget();
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}
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already_AddRefed<DOMPoint> DOMPoint::Constructor(const GlobalObject& aGlobal,
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double aX, double aY,
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double aZ, double aW) {
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RefPtr<DOMPoint> obj = new DOMPoint(aGlobal.GetAsSupports(), aX, aY, aZ, aW);
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return obj.forget();
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}
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JSObject* DOMPoint::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return DOMPoint_Binding::Wrap(aCx, this, aGivenProto);
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}
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// static
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already_AddRefed<DOMPoint> DOMPoint::ReadStructuredClone(
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JSContext* aCx, nsIGlobalObject* aGlobal,
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JSStructuredCloneReader* aReader) {
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RefPtr<DOMPoint> retval = new DOMPoint(aGlobal);
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if (!retval->ReadStructuredClone(aReader)) {
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return nullptr;
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}
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return retval.forget();
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;
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}
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