Ejemplo n.º 1
0
void ContentDistributor::distribute(Element* host)
{
    ASSERT(needsDistribution());
    ASSERT(m_nodeToInsertionPoint.isEmpty());
    ASSERT(!host->containingShadowRoot() || host->containingShadowRoot()->owner()->distributor().isValid());

    m_validity = Valid;

    ContentDistribution pool;
    for (Node* node = host->firstChild(); node; node = node->nextSibling())
        populate(node, pool);

    Vector<bool> distributed(pool.size());
    distributed.fill(false);

    if (ShadowRoot* root = host->shadowRoot()) {
        if (ScopeContentDistribution* scope = root->scopeDistribution()) {
            const Vector<RefPtr<InsertionPoint> >& insertionPoints = scope->ensureInsertionPointList(root);
            for (size_t i = 0; i < insertionPoints.size(); ++i) {
                InsertionPoint* point = insertionPoints[i].get();
                if (!point->isActive())
                    continue;

                distributeSelectionsTo(point, pool, distributed);
                if (ElementShadow* shadow = point->parentNode()->isElementNode() ? toElement(point->parentNode())->shadow() : 0)
                    shadow->invalidateDistribution();
            }
        }
    }
}
void ContentDistributor::distribute(Element* host)
{
    ASSERT(needsDistribution());
    ASSERT(m_nodeToInsertionPoint.isEmpty());

    m_validity = Valid;

    ContentDistribution pool;
    for (Node* node = host->firstChild(); node; node = node->nextSibling())
        populate(node, pool);

    Vector<bool> distributed(pool.size());
    distributed.fill(false);

    Vector<HTMLShadowElement*, 8> activeShadowInsertionPoints;
    for (ShadowRoot* root = host->youngestShadowRoot(); root; root = root->olderShadowRoot()) {
        HTMLShadowElement* firstActiveShadowInsertionPoint = 0;

        const Vector<InsertionPoint*>& insertionPoints = root->insertionPointList();
        for (size_t i = 0; i < insertionPoints.size(); ++i) {
            InsertionPoint* point = insertionPoints[i];
            if (!point->isActive())
                continue;

            if (isHTMLShadowElement(point)) {
                if (!firstActiveShadowInsertionPoint)
                    firstActiveShadowInsertionPoint = toHTMLShadowElement(point);
            } else {
                distributeSelectionsTo(point, pool, distributed);
                if (ElementShadow* shadow = point->parentNode()->isElementNode() ? toElement(point->parentNode())->shadow() : 0)
                    shadow->invalidateDistribution();
            }
        }

        if (firstActiveShadowInsertionPoint)
            activeShadowInsertionPoints.append(firstActiveShadowInsertionPoint);
    }

    for (size_t i = activeShadowInsertionPoints.size(); i > 0; --i) {
        HTMLShadowElement* shadowElement = activeShadowInsertionPoints[i - 1];
        ShadowRoot* root = shadowElement->shadowRoot();
        ASSERT(root);
        if (root->olderShadowRoot()) {
            distributeNodeChildrenTo(shadowElement, root->olderShadowRoot());
            root->olderShadowRoot()->setAssignedTo(shadowElement);
        } else {
            distributeSelectionsTo(shadowElement, pool, distributed);
            if (ElementShadow* shadow = shadowElement->parentNode()->isElementNode() ? toElement(shadowElement->parentNode())->shadow() : 0)
                shadow->invalidateDistribution();
        }
    }
}