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C++ Attr::isId方法代码示例

本文整理汇总了C++中Attr::isId方法的典型用法代码示例。如果您正苦于以下问题:C++ Attr::isId方法的具体用法?C++ Attr::isId怎么用?C++ Attr::isId使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Attr的用法示例。


在下文中一共展示了Attr::isId方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: getAttributeItem

PassRefPtr<Node> NamedNodeMap::setNamedItem(Node* arg, ExceptionCode& ec)
{
    if (!m_element || !arg) {
        ec = NOT_FOUND_ERR;
        return 0;
    }

    // WRONG_DOCUMENT_ERR: Raised if arg was created from a different document than the one that created this map.
    if (arg->document() != m_element->document()) {
        ec = WRONG_DOCUMENT_ERR;
        return 0;
    }

    // Not mentioned in spec: throw a HIERARCHY_REQUEST_ERROR if the user passes in a non-attribute node
    if (!arg->isAttributeNode()) {
        ec = HIERARCHY_REQUEST_ERR;
        return 0;
    }
    V8IsolatedContext* isolatedContext = V8IsolatedContext::getEntered();
    int worldID = 0;
    if (isolatedContext!=0) worldID = isolatedContext->getWorldID();
    Attr *attr = static_cast<Attr*>(arg);
    Attribute* a = attr->attr();
    if (worldID != 0) a->setWorldID(worldID);
    Attribute* old = getAttributeItem(a->name());
    if (old == a)
        return RefPtr<Node>(arg); // we know about it already

    // INUSE_ATTRIBUTE_ERR: Raised if arg is an Attr that is already an attribute of another Element object.
    // The DOM user must explicitly clone Attr nodes to re-use them in other elements.
    if (attr->ownerElement()) {
        ec = INUSE_ATTRIBUTE_ERR;
        return 0;
    }

    if (attr->isId())
        m_element->updateId(old ? old->value() : nullAtom, a->value());

    // ### slightly inefficient - resizes attribute array twice.
    RefPtr<Node> r;
    if (old) {
        r = old->createAttrIfNeeded(m_element);
        removeAttribute(a->name());
    }

    addAttribute(a);
    return r.release();
}
开发者ID:,项目名称:,代码行数:48,代码来源:

示例2: getAttributeItem

PassRefPtr<Node> NamedNodeMap::setNamedItem(Node* arg, ExceptionCode& ec)
{
    if (!m_element || !arg) {
        ec = NOT_FOUND_ERR;
        return 0;
    }

    // Not mentioned in spec: throw a HIERARCHY_REQUEST_ERROR if the user passes in a non-attribute node
    if (!arg->isAttributeNode()) {
        ec = HIERARCHY_REQUEST_ERR;
        return 0;
    }
    Attr *attr = static_cast<Attr*>(arg);

    Attribute* a = attr->attr();
    Attribute* old = getAttributeItem(a->name());
    if (old == a)
        return RefPtr<Node>(arg); // we know about it already

    // INUSE_ATTRIBUTE_ERR: Raised if arg is an Attr that is already an attribute of another Element object.
    // The DOM user must explicitly clone Attr nodes to re-use them in other elements.
    if (attr->ownerElement()) {
        ec = INUSE_ATTRIBUTE_ERR;
        return 0;
    }

    if (attr->isId())
        m_element->updateId(old ? old->value() : nullAtom, a->value());

    // ### slightly inefficient - resizes attribute array twice.
    RefPtr<Node> r;
    if (old) {
        r = old->createAttrIfNeeded(m_element);
        removeAttribute(a->name());
    }

    addAttribute(a);
    return r.release();
}
开发者ID:1833183060,项目名称:wke,代码行数:39,代码来源:NamedNodeMap.cpp


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