Quelle DOMPoint.cpp Sprache: C

/* -*- 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)

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();
  ;
}

quality100%

¤ Dauer der Verarbeitung: 0.16 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.