C++ (Cpp) TreeScopeEventContext示例

示例#1

文件： EventPath.cpp 项目： mtucker6784/chromium

void EventPath::calculateTreeOrderAndSetNearestAncestorClosedTree()
{
    // Precondition:
    //   - TreeScopes in m_treeScopeEventContexts must be *connected* in the same tree of trees.
    //   - The root tree must be included.
    WillBeHeapHashMap<RawPtrWillBeMember<const TreeScope>, RawPtrWillBeMember<TreeScopeEventContext>> treeScopeEventContextMap;
    for (const auto& treeScopeEventContext : m_treeScopeEventContexts)
        treeScopeEventContextMap.add(&treeScopeEventContext->treeScope(), treeScopeEventContext.get());
    TreeScopeEventContext* rootTree = nullptr;
    for (const auto& treeScopeEventContext : m_treeScopeEventContexts) {
        // Use olderShadowRootOrParentTreeScope here for parent-child relationships.
        // See the definition of trees of trees in the Shadow DOM spec:
        // http://w3c.github.io/webcomponents/spec/shadow/
        TreeScope* parent = treeScopeEventContext.get()->treeScope().olderShadowRootOrParentTreeScope();
        if (!parent) {
            ASSERT(!rootTree);
            rootTree = treeScopeEventContext.get();
            continue;
        }
        ASSERT(treeScopeEventContextMap.find(parent) != treeScopeEventContextMap.end());
        treeScopeEventContextMap.find(parent)->value->addChild(*treeScopeEventContext.get());
    }
    ASSERT(rootTree);
    rootTree->calculateTreeOrderAndSetNearestAncestorClosedTree(0, nullptr);
}

示例#2

文件： EventPath.cpp 项目： coinpayee/blink

void EventPath::adjustForRelatedTarget(Node* target, EventTarget* relatedTarget)
{
    if (!target)
        return;
    if (!relatedTarget)
        return;
    Node* relatedNode = relatedTarget->toNode();
    if (!relatedNode)
        return;
    if (target->document() != relatedNode->document())
        return;
    if (!target->inDocument() || !relatedNode->inDocument())
        return;

    RelatedTargetMap relatedNodeMap;
    buildRelatedNodeMap(relatedNode, relatedNodeMap);

    for (size_t i = 0; i < m_treeScopeEventContexts.size(); ++i) {
        TreeScopeEventContext* treeScopeEventContext = m_treeScopeEventContexts[i].get();
        EventTarget* adjustedRelatedTarget = findRelatedNode(&treeScopeEventContext->treeScope(), relatedNodeMap);
        ASSERT(adjustedRelatedTarget);
        treeScopeEventContext->setRelatedTarget(adjustedRelatedTarget);
    }

    shrinkIfNeeded(target, relatedTarget);
}

示例#3

文件： EventPath.cpp 项目： coinpayee/blink

void EventPath::calculateAdjustedTargets()
{
    const TreeScope* lastTreeScope = 0;
    bool useDeprecatedSVGUseTreeEventRules = usesDeprecatedSVGUseTreeEventRules(at(0).node());

    TreeScopeEventContextMap treeScopeEventContextMap;
    TreeScopeEventContext* lastTreeScopeEventContext = 0;

    for (size_t i = 0; i < size(); ++i) {
        Node* currentNode = at(i).node();
        TreeScope& currentTreeScope = currentNode->treeScope();
        if (lastTreeScope != &currentTreeScope) {
            if (!useDeprecatedSVGUseTreeEventRules) {
                lastTreeScopeEventContext = ensureTreeScopeEventContext(currentNode, &currentTreeScope, treeScopeEventContextMap);
            } else {
                TreeScopeEventContextMap::AddResult addResult = treeScopeEventContextMap.add(&currentTreeScope, TreeScopeEventContext::create(currentTreeScope));
                lastTreeScopeEventContext = addResult.storedValue->value.get();
                if (addResult.isNewEntry) {
                    // Don't adjust an event target for SVG.
                    lastTreeScopeEventContext->setTarget(eventTargetRespectingTargetRules(at(0).node()));
                }
            }
        }
        ASSERT(lastTreeScopeEventContext);
        at(i).setTreeScopeEventContext(lastTreeScopeEventContext);
        lastTreeScope = &currentTreeScope;
    }
    m_treeScopeEventContexts.appendRange(treeScopeEventContextMap.values().begin(), treeScopeEventContextMap.values().end());
}

示例#4

文件： EventPath.cpp 项目： coinpayee/blink

void EventPath::calculateTreeScopePrePostOrderNumbers()
{
    // Precondition:
    //   - TreeScopes in m_treeScopeEventContexts must be *connected* in the same tree of trees.
    //   - The root tree must be included.
    HashMap<const TreeScope*, TreeScopeEventContext*> treeScopeEventContextMap;
    for (size_t i = 0; i < m_treeScopeEventContexts.size(); ++i)
        treeScopeEventContextMap.add(&m_treeScopeEventContexts[i]->treeScope(), m_treeScopeEventContexts[i].get());
    TreeScopeEventContext* rootTree = 0;
    for (size_t i = 0; i < m_treeScopeEventContexts.size(); ++i) {
        TreeScopeEventContext* treeScopeEventContext = m_treeScopeEventContexts[i].get();
        // Use olderShadowRootOrParentTreeScope here for parent-child relationships.
        // See the definition of trees of trees in the Shado DOM spec: http://w3c.github.io/webcomponents/spec/shadow/
        TreeScope* parent = treeScopeEventContext->treeScope().olderShadowRootOrParentTreeScope();
        if (!parent) {
            ASSERT(!rootTree);
            rootTree = treeScopeEventContext;
            continue;
        }
        ASSERT(treeScopeEventContextMap.find(parent) != treeScopeEventContextMap.end());
        treeScopeEventContextMap.find(parent)->value->addChild(*treeScopeEventContext);
    }
    ASSERT(rootTree);
    rootTree->calculatePrePostOrderNumber(0);
}

示例#5

文件： EventPath.cpp 项目： eth-srl/BlinkER

void EventPath::buildRelatedNodeMap(const Node& relatedNode, RelatedTargetMap& relatedTargetMap)
{
    EventPath relatedTargetEventPath(const_cast<Node&>(relatedNode));
    for (size_t i = 0; i < relatedTargetEventPath.m_treeScopeEventContexts.size(); ++i) {
        TreeScopeEventContext* treeScopeEventContext = relatedTargetEventPath.m_treeScopeEventContexts[i].get();
        relatedTargetMap.add(&treeScopeEventContext->treeScope(), treeScopeEventContext->target());
    }
}

示例#6

文件： EventPath.cpp 项目： smishenk/chromium-crosswalk

void EventPath::buildRelatedNodeMap(const Node& relatedNode, RelatedTargetMap& relatedTargetMap)
{
    OwnPtrWillBeRawPtr<EventPath> relatedTargetEventPath = adoptPtrWillBeNoop(new EventPath(const_cast<Node&>(relatedNode)));
    for (size_t i = 0; i < relatedTargetEventPath->m_treeScopeEventContexts.size(); ++i) {
        TreeScopeEventContext* treeScopeEventContext = relatedTargetEventPath->m_treeScopeEventContexts[i].get();
        relatedTargetMap.add(&treeScopeEventContext->treeScope(), treeScopeEventContext->target());
    }
#if ENABLE(OILPAN)
    // Oilpan: It is important to explicitly clear the vectors to reuse
    // the memory in subsequent event dispatchings.
    relatedTargetEventPath->clear();
#endif
}

示例#7

文件： EventPath.cpp 项目： smishenk/chromium-crosswalk

TreeScopeEventContext* EventPath::ensureTreeScopeEventContext(Node* currentTarget, TreeScope* treeScope, TreeScopeEventContextMap& treeScopeEventContextMap)
{
    if (!treeScope)
        return 0;
    TreeScopeEventContext* treeScopeEventContext;
    bool isNewEntry;
    {
        TreeScopeEventContextMap::AddResult addResult = treeScopeEventContextMap.add(treeScope, nullptr);
        isNewEntry = addResult.isNewEntry;
        if (isNewEntry)
            addResult.storedValue->value = TreeScopeEventContext::create(*treeScope);
        treeScopeEventContext = addResult.storedValue->value.get();
    }
    if (isNewEntry) {
        TreeScopeEventContext* parentTreeScopeEventContext = ensureTreeScopeEventContext(0, treeScope->olderShadowRootOrParentTreeScope(), treeScopeEventContextMap);
        if (parentTreeScopeEventContext && parentTreeScopeEventContext->target()) {
            treeScopeEventContext->setTarget(parentTreeScopeEventContext->target());
        } else if (currentTarget) {
            treeScopeEventContext->setTarget(eventTargetRespectingTargetRules(*currentTarget));
        }
    } else if (!treeScopeEventContext->target() && currentTarget) {
        treeScopeEventContext->setTarget(eventTargetRespectingTargetRules(*currentTarget));
    }
    return treeScopeEventContext;
}

示例#8

void EventPath::calculateAdjustedEventPath()
{
    if (!RuntimeEnabledFeatures::shadowDOMEnabled())
        return;
    for (size_t i = 0; i < m_treeScopeEventContexts.size(); ++i) {
        TreeScopeEventContext* treeScopeEventContext = m_treeScopeEventContexts[i].get();
        Vector<RefPtr<Node> > nodes;
        nodes.reserveInitialCapacity(size());
        for (size_t i = 0; i < size(); ++i) {
            if (at(i).node()->treeScope().isInclusiveAncestorOf(treeScopeEventContext->treeScope()))
                nodes.append(at(i).node());
        }
        treeScopeEventContext->adoptEventPath(nodes);
    }
}

示例#9

文件： TreeScopeEventContext.cpp 项目： endlessm/chromium-browser

bool TreeScopeEventContext::isUnclosedTreeOf(const TreeScopeEventContext& other)
{
    // Exclude closed nodes if necessary.
    // If a node is in a closed shadow root, or in a tree whose ancestor has a closed shadow root,
    // it should not be visible to nodes above the closed shadow root.

    // (1) If |this| is an ancestor of |other| in tree-of-trees, include it.
    if (isInclusiveAncestorOf(other))
        return true;

    // (2) If no closed shadow root in ancestors of this, include it.
    if (!containingClosedShadowTree())
        return true;

    // (3) If |this| is descendent of |other|, exclude if any closed shadow root in between.
    if (isDescendantOf(other))
        return !containingClosedShadowTree()->isDescendantOf(other);

    // (4) |this| and |other| must be in exclusive branches.
    ASSERT(other.isExclusivePartOf(*this));
    return false;
}