C++ ArgumentDecoder::decodeEnum方法代码示例

bool ArgumentCoder<TransformOperations>::decode(ArgumentDecoder& decoder, TransformOperations& transformOperations)
{
    uint32_t operationsSize;
    if (!decoder.decode(operationsSize))
        return false;

    for (size_t i = 0; i < operationsSize; ++i) {
        TransformOperation::OperationType operationType;
        if (!decoder.decodeEnum(operationType))
            return false;

        switch (operationType) {
        case TransformOperation::SCALE_X:
        case TransformOperation::SCALE_Y:
        case TransformOperation::SCALE:
        case TransformOperation::SCALE_Z:
        case TransformOperation::SCALE_3D: {
            double x, y, z;
            if (!decoder.decode(x))
                return false;
            if (!decoder.decode(y))
                return false;
            if (!decoder.decode(z))
                return false;
            transformOperations.operations().append(ScaleTransformOperation::create(x, y, z, operationType));
            break;
        }
        case TransformOperation::TRANSLATE_X:
        case TransformOperation::TRANSLATE_Y:
        case TransformOperation::TRANSLATE:
        case TransformOperation::TRANSLATE_Z:
        case TransformOperation::TRANSLATE_3D: {
            Length x, y, z;
            if (!ArgumentCoder<Length>::decode(decoder, x))
                return false;
            if (!ArgumentCoder<Length>::decode(decoder, y))
                return false;
            if (!ArgumentCoder<Length>::decode(decoder, z))
                return false;
            transformOperations.operations().append(TranslateTransformOperation::create(x, y, z, operationType));
            break;
        }
        case TransformOperation::ROTATE:
        case TransformOperation::ROTATE_X:
        case TransformOperation::ROTATE_Y:
        case TransformOperation::ROTATE_3D: {
            double x, y, z, angle;
            if (!decoder.decode(x))
                return false;
            if (!decoder.decode(y))
                return false;
            if (!decoder.decode(z))
                return false;
            if (!decoder.decode(angle))
                return false;
            transformOperations.operations().append(RotateTransformOperation::create(x, y, z, angle, operationType));
            break;
        }
        case TransformOperation::SKEW_X:
        case TransformOperation::SKEW_Y:
        case TransformOperation::SKEW: {
            double angleX, angleY;
            if (!decoder.decode(angleX))
                return false;
            if (!decoder.decode(angleY))
                return false;
            transformOperations.operations().append(SkewTransformOperation::create(angleX, angleY, operationType));
            break;
        }
        case TransformOperation::MATRIX: {
            TransformationMatrix matrix;
            if (!ArgumentCoder<TransformationMatrix>::decode(decoder, matrix))
                return false;
            transformOperations.operations().append(MatrixTransformOperation::create(matrix));
            break;
        }
        case TransformOperation::MATRIX_3D: {
            TransformationMatrix matrix;
            if (!ArgumentCoder<TransformationMatrix>::decode(decoder, matrix))
                return false;
            transformOperations.operations().append(Matrix3DTransformOperation::create(matrix));
            break;
        }
        case TransformOperation::PERSPECTIVE: {
            Length perspective;
            if (!ArgumentCoder<Length>::decode(decoder, perspective))
                return false;
            transformOperations.operations().append(PerspectiveTransformOperation::create(perspective));
            break;
        }
        case TransformOperation::IDENTITY:
            transformOperations.operations().append(IdentityTransformOperation::create());
            break;
        case TransformOperation::NONE:
            ASSERT_NOT_REACHED();
            break;
        }
    }
    return true;
}

bool ArgumentCoder<GraphicsLayerAnimation>::decode(ArgumentDecoder& decoder, GraphicsLayerAnimation& animation)
{
    String name;
    IntSize boxSize;
    GraphicsLayerAnimation::AnimationState state;
    double startTime;
    double pauseTime;
    bool listsMatch;

    Animation::AnimationDirection direction;
    unsigned fillMode;
    double duration;
    double iterationCount;
    RefPtr<TimingFunction> timingFunction;
    RefPtr<Animation> animationObject;

    if (!decoder.decode(name))
        return false;
    if (!decoder.decode(boxSize))
        return false;
    if (!decoder.decodeEnum(state))
        return false;
    if (!decoder.decode(startTime))
        return false;
    if (!decoder.decode(pauseTime))
        return false;
    if (!decoder.decode(listsMatch))
        return false;
    if (!decoder.decodeEnum(direction))
        return false;
    if (!decoder.decode(fillMode))
        return false;
    if (!decoder.decode(duration))
        return false;
    if (!decoder.decode(iterationCount))
        return false;
    if (!decodeTimingFunction(decoder, timingFunction))
        return false;

    animationObject = Animation::create();
    animationObject->setDirection(direction);
    animationObject->setFillMode(fillMode);
    animationObject->setDuration(duration);
    animationObject->setIterationCount(iterationCount);
    if (timingFunction)
        animationObject->setTimingFunction(timingFunction);

    AnimatedPropertyID property;
    if (!decoder.decodeEnum(property))
        return false;
    KeyframeValueList keyframes(property);
    unsigned keyframesSize;
    if (!decoder.decode(keyframesSize))
        return false;
    for (unsigned i = 0; i < keyframesSize; ++i) {
        double keyTime;
        RefPtr<TimingFunction> timingFunction;
        if (!decoder.decode(keyTime))
            return false;
        if (!decodeTimingFunction(decoder, timingFunction))
            return false;

        switch (property) {
        case AnimatedPropertyOpacity: {
            float value;
            if (!decoder.decode(value))
                return false;
            keyframes.insert(FloatAnimationValue::create(keyTime, value, timingFunction.get()));
            break;
        }
        case AnimatedPropertyWebkitTransform: {
            TransformOperations transform;
            if (!decoder.decode(transform))
                return false;
            keyframes.insert(TransformAnimationValue::create(keyTime, transform, timingFunction.get()));
            break;
        }
        case AnimatedPropertyWebkitFilter: {
            FilterOperations filter;
            if (!decoder.decode(filter))
                return false;
            keyframes.insert(FilterAnimationValue::create(keyTime, filter, timingFunction.get()));
            break;
        }
        default:
            break;
        }
    }

    animation = GraphicsLayerAnimation(name, keyframes, boxSize, animationObject.get(), startTime, listsMatch);
    animation.setState(state, pauseTime);

    return true;
}

bool ArgumentCoder<ResourceRequest>::decodePlatformData(ArgumentDecoder& decoder, ResourceRequest& resourceRequest)
{
    String url;
    if (!decoder.decode(url))
        return false;
    resourceRequest.setURL(URL(URL(), url));

    String httpMethod;
    if (!decoder.decode(httpMethod))
        return false;
    resourceRequest.setHTTPMethod(httpMethod);

    HTTPHeaderMap headers;
    if (!decoder.decode(headers))
        return false;
    resourceRequest.setHTTPHeaderFields(WTF::move(headers));

    double timeoutInterval;
    if (!decoder.decode(timeoutInterval))
        return false;
    resourceRequest.setTimeoutInterval(timeoutInterval);

    bool hasHTTPBody;
    if (!decoder.decode(hasHTTPBody))
        return false;
    if (hasHTTPBody) {
        String httpBody;
        if (!decoder.decode(httpBody))
            return false;
        resourceRequest.setHTTPBody(FormData::create(httpBody.utf8()));
    }

    String firstPartyForCookies;
    if (!decoder.decode(firstPartyForCookies))
        return false;
    resourceRequest.setFirstPartyForCookies(URL(URL(), firstPartyForCookies));

    bool allowCookies;
    if (!decoder.decode(allowCookies))
        return false;
    resourceRequest.setAllowCookies(allowCookies);

    ResourceLoadPriority priority;
    if (!decoder.decodeEnum(priority))
        return false;
    resourceRequest.setPriority(priority);

    ResourceRequestCachePolicy cachePolicy;
    if (!decoder.decodeEnum(cachePolicy))
        return false;
    resourceRequest.setCachePolicy(cachePolicy);

    ResourceRequest::Requester requester;
    if (!decoder.decodeEnum(requester))
        return false;
    resourceRequest.setRequester(requester);

    uint32_t soupMessageFlags;
    if (!decoder.decode(soupMessageFlags))
        return false;
    resourceRequest.setSoupMessageFlags(static_cast<SoupMessageFlags>(soupMessageFlags));

    uint64_t initiatingPageID;
    if (!decoder.decode(initiatingPageID))
        return false;
    resourceRequest.setInitiatingPageID(initiatingPageID);

    return true;
}

bool ArgumentCoder<WebCore::FilterOperations>::decode(ArgumentDecoder& decoder, WebCore::FilterOperations& filters)
{
    uint32_t size;
    if (!decoder.decode(size))
        return false;

    Vector<RefPtr<FilterOperation> >& operations = filters.operations();

    for (size_t i = 0; i < size; ++i) {
        FilterOperation::OperationType type;
        RefPtr<FilterOperation> filter;
        if (!decoder.decodeEnum(type))
            return false;

        switch (type) {
        case FilterOperation::GRAYSCALE:
        case FilterOperation::SEPIA:
        case FilterOperation::SATURATE:
        case FilterOperation::HUE_ROTATE: {
            double value;
            if (!decoder.decode(value))
                return false;
            filter = BasicColorMatrixFilterOperation::create(value, type);
            break;
        }
        case FilterOperation::INVERT:
        case FilterOperation::BRIGHTNESS:
        case FilterOperation::CONTRAST:
        case FilterOperation::OPACITY: {
            double value;
            if (!decoder.decode(value))
                return false;
            filter = BasicComponentTransferFilterOperation::create(value, type);
            break;
        }
        case FilterOperation::BLUR: {
            Length length;
            if (!ArgumentCoder<Length>::decode(decoder, length))
                return false;
            filter = BlurFilterOperation::create(length, type);
            break;
        }
        case FilterOperation::DROP_SHADOW: {
            IntPoint location;
            int32_t stdDeviation;
            Color color;
            if (!ArgumentCoder<IntPoint>::decode(decoder, location))
                return false;
            if (!decoder.decode(stdDeviation))
                return false;
            if (!ArgumentCoder<Color>::decode(decoder, color))
                return false;
            filter = DropShadowFilterOperation::create(location, stdDeviation, color, type);
            break;
        }
#if ENABLE(CSS_SHADERS)
        case FilterOperation::CUSTOM:
            // Custom Filters are converted to VALIDATED_CUSTOM before reaching this point.
            ASSERT_NOT_REACHED();
            break;
        case FilterOperation::VALIDATED_CUSTOM: {
            // FIXME: CustomFilterOperation should not need the meshType.
            // https://bugs.webkit.org/show_bug.cgi?id=102529
            CustomFilterMeshType meshType;
            if (!decoder.decodeEnum(meshType))
                return false;
            int programID = 0;
            if (!decoder.decode(programID))
                return false;

            uint32_t parametersSize;
            if (!decoder.decode(parametersSize))
                return false;

            CustomFilterParameterList parameters(parametersSize);
            for (size_t i = 0; i < parametersSize; ++i) {
                String name;
                CustomFilterParameter::ParameterType parameterType;
                if (!decoder.decode(name))
                    return false;
                if (!decoder.decodeEnum(parameterType))
                    return false;

                switch (parameterType) {
                case CustomFilterParameter::ARRAY: {
                    RefPtr<CustomFilterArrayParameter> arrayParameter = CustomFilterArrayParameter::create(name);
                    uint32_t arrayParameterSize;
                    if (!decoder.decode(arrayParameterSize))
                        return false;
                    double arrayParameterValue;
                    for (size_t j = 0; j < arrayParameterSize; ++j) {
                        if (!decoder.decode(arrayParameterValue))
                            return false;
                        arrayParameter->addValue(arrayParameterValue);
                    }
                    parameters[i] = arrayParameter.release();
                    break;
                }
                case CustomFilterParameter::NUMBER: {
                    RefPtr<CustomFilterNumberParameter> numberParameter = CustomFilterNumberParameter::create(name);
//.........这里部分代码省略.........

bool decode(ArgumentDecoder& decoder, RetainPtr<CFTypeRef>& result)
{
    CFType type;
    if (!decoder.decodeEnum(type))
        return false;

    switch (type) {
    case CFArray: {
        RetainPtr<CFArrayRef> array;
        if (!decode(decoder, array))
            return false;
        result = adoptCF(array.leakRef());
        return true;
    }
    case CFBoolean: {
        RetainPtr<CFBooleanRef> boolean;
        if (!decode(decoder, boolean))
            return false;
        result = adoptCF(boolean.leakRef());
        return true;
    }
    case CFData: {
        RetainPtr<CFDataRef> data;
        if (!decode(decoder, data))
            return false;
        result = adoptCF(data.leakRef());
        return true;
    }
    case CFDate: {
        RetainPtr<CFDateRef> date;
        if (!decode(decoder, date))
            return false;
        result = adoptCF(date.leakRef());
        return true;
    }
    case CFDictionary: {
        RetainPtr<CFDictionaryRef> dictionary;
        if (!decode(decoder, dictionary))
            return false;
        result = adoptCF(dictionary.leakRef());
        return true;
    }
    case CFNull:
        result = adoptCF(kCFNull);
        return true;
    case CFNumber: {
        RetainPtr<CFNumberRef> number;
        if (!decode(decoder, number))
            return false;
        result = adoptCF(number.leakRef());
        return true;
    }
    case CFString: {
        RetainPtr<CFStringRef> string;
        if (!decode(decoder, string))
            return false;
        result = adoptCF(string.leakRef());
        return true;
    }
    case CFURL: {
        RetainPtr<CFURLRef> url;
        if (!decode(decoder, url))
            return false;
        result = adoptCF(url.leakRef());
        return true;
    }
    case SecCertificate: {
        RetainPtr<SecCertificateRef> certificate;
        if (!decode(decoder, certificate))
            return false;
        result = adoptCF(certificate.leakRef());
        return true;
    }
#if PLATFORM(IOS)
    case SecIdentity: {
        RetainPtr<SecIdentityRef> identity;
        if (!decode(decoder, identity))
            return false;
        result = adoptCF(identity.leakRef());
        return true;
    }
#endif
#if HAVE(SEC_KEYCHAIN)
    case SecKeychainItem: {
        RetainPtr<SecKeychainItemRef> keychainItem;
        if (!decode(decoder, keychainItem))
            return false;
        result = adoptCF(keychainItem.leakRef());
        return true;
    }
#endif
#if HAVE(SEC_ACCESS_CONTROL)
    case SecAccessControl: {
        RetainPtr<SecAccessControlRef> accessControl;
        if (!decode(decoder, accessControl))
            return false;
        result = adoptCF(accessControl.leakRef());
        return true;
    }
#endif
//.........这里部分代码省略.........