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C++ NodeVector::reserveInitialCapacity方法代码示例

本文整理汇总了C++中NodeVector::reserveInitialCapacity方法的典型用法代码示例。如果您正苦于以下问题:C++ NodeVector::reserveInitialCapacity方法的具体用法?C++ NodeVector::reserveInitialCapacity怎么用?C++ NodeVector::reserveInitialCapacity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NodeVector的用法示例。


在下文中一共展示了NodeVector::reserveInitialCapacity方法的1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: removeChildren

// this differs from other remove functions because it forcibly removes all the children,
// regardless of read-only status or event exceptions, e.g.
void ContainerNode::removeChildren()
{
    if (!m_firstChild)
        return;

    // The container node can be removed from event handlers.
    Ref<ContainerNode> protect(*this);

    // exclude this node when looking for removed focusedNode since only children will be removed
    document().removeFocusedNodeOfSubtree(this, true);

#if ENABLE(FULLSCREEN_API)
    document().removeFullScreenElementOfSubtree(this, true);
#endif

    // Do any prep work needed before actually starting to detach
    // and remove... e.g. stop loading frames, fire unload events.
    willRemoveChildren(*this);

    NodeVector removedChildren;
    {
        WidgetHierarchyUpdatesSuspensionScope suspendWidgetHierarchyUpdates;
        {
            NoEventDispatchAssertion assertNoEventDispatch;
            removedChildren.reserveInitialCapacity(countChildNodes());
            while (RefPtr<Node> n = m_firstChild) {
                removedChildren.append(*m_firstChild);
                removeBetween(0, m_firstChild->nextSibling(), *m_firstChild);
            }
        }

        ChildChange change = { AllChildrenRemoved, nullptr, nullptr, ChildChangeSourceAPI };
        childrenChanged(change);
        
        for (size_t i = 0; i < removedChildren.size(); ++i)
            ChildNodeRemovalNotifier(*this).notify(removedChildren[i].get());
    }

    if (document().svgExtensions()) {
        Element* shadowHost = this->shadowHost();
        if (!shadowHost || !shadowHost->hasTagName(SVGNames::useTag))
            document().accessSVGExtensions()->rebuildElements();
    }

    dispatchSubtreeModifiedEvent();
}
开发者ID:sinoory,项目名称:webv8,代码行数:48,代码来源:ContainerNode.cpp


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