C++ (Cpp) TreeScopeEventContext::setTarget示例

示例#1

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#2

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());
}