C++ (Cpp) HTMLOptionsCollection::setLength示例

示例#1

文件： JSHTMLOptionsCollectionCustom.cpp 项目： flwh/Alcatel_OT_985_kernel

void JSHTMLOptionsCollection::setLength(ExecState* exec, JSValue value)
{
    HTMLOptionsCollection* imp = static_cast<HTMLOptionsCollection*>(impl());
    ExceptionCode ec = 0;
    unsigned newLength = 0;
    double lengthValue = value.toNumber(exec);
    if (!isnan(lengthValue) && !isinf(lengthValue)) {
        if (lengthValue < 0.0)
            ec = INDEX_SIZE_ERR;
        else if (lengthValue > static_cast<double>(UINT_MAX))
            newLength = UINT_MAX;
        else
            newLength = static_cast<unsigned>(lengthValue);
    }
    if (!ec)
        imp->setLength(newLength, ec);
    setDOMException(exec, ec);
}

示例#2

文件： V8HTMLOptionsCollectionCustom.cpp 项目： windyuuy/opera

void V8HTMLOptionsCollection::lengthAttrSetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
{
    HTMLOptionsCollection* imp = V8HTMLOptionsCollection::toNative(info.Holder());
    double v = value->NumberValue();
    unsigned newLength = 0;
    ExceptionCode ec = 0;
    if (!std::isnan(v) && !std::isinf(v)) {
        if (v < 0.0)
            ec = INDEX_SIZE_ERR;
        else if (v > static_cast<double>(UINT_MAX))
            newLength = UINT_MAX;
        else
            newLength = static_cast<unsigned>(v);
    }
    if (!ec)
        imp->setLength(newLength, ec);

    setDOMException(ec, info.GetIsolate());
}

示例#3

void V8HTMLOptionsCollection::lengthAccessorSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
{
    INC_STATS("DOM.HTMLOptionsCollection.length._set");
    HTMLOptionsCollection* imp = V8HTMLOptionsCollection::toNative(info.Holder());
    double v = value->NumberValue();
    unsigned newLength = 0;
    ExceptionCode ec = 0;
    if (!isnan(v) && !isinf(v)) {
        if (v < 0.0)
            ec = INDEX_SIZE_ERR;
        else if (v > static_cast<double>(UINT_MAX))
            newLength = UINT_MAX;
        else
            newLength = static_cast<unsigned>(v);
    }
    if (!ec)
        imp->setLength(newLength, ec);

    setDOMException(ec, info.GetIsolate());
}

示例#4

文件： V8HTMLOptionsCollectionCustom.cpp 项目： Igalia/blink

void V8HTMLOptionsCollection::lengthAttributeSetterCustom(v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
{
    HTMLOptionsCollection* imp = V8HTMLOptionsCollection::toNative(info.Holder());
    double v = value->NumberValue();
    unsigned newLength = 0;
    ExceptionState exceptionState(ExceptionState::SetterContext, "length", "HTMLOptionsCollection", info.Holder(), info.GetIsolate());
    if (!std::isnan(v) && !std::isinf(v)) {
        if (v < 0.0)
            exceptionState.throwDOMException(IndexSizeError, "The value provided (" + String::number(v) + ") is negative. Lengths must be greater than or equal to 0.");
        else if (v > static_cast<double>(UINT_MAX))
            newLength = UINT_MAX;
        else
            newLength = static_cast<unsigned>(v);
    }

    if (exceptionState.throwIfNeeded())
        return;

    imp->setLength(newLength, exceptionState);
}