示例#1
0
static inline bool shouldEventCrossShadowBoundary(Event& event, ShadowRoot& shadowRoot, EventTarget& target)
{
    Node* targetNode = target.toNode();
#if ENABLE(FULLSCREEN_API) && ENABLE(VIDEO)
    // Video-only full screen is a mode where we use the shadow DOM as an implementation
    // detail that should not be detectable by the web content.
    if (targetNode) {
        if (Element* element = targetNode->document().webkitCurrentFullScreenElement()) {
            // FIXME: We assume that if the full screen element is a media element that it's
            // the video-only full screen. Both here and elsewhere. But that is probably wrong.
            if (element->isMediaElement() && shadowRoot.hostElement() == element)
                return false;
        }
    }
#endif

    // WebKit never allowed selectstart event to cross the the shadow DOM boundary.
    // Changing this breaks existing sites.
    // See https://bugs.webkit.org/show_bug.cgi?id=52195 for details.
    const AtomicString& eventType = event.type();
    bool targetIsInShadowRoot = targetNode && targetNode->treeScope().rootNode() == &shadowRoot;
    return !targetIsInShadowRoot
        || !(eventType == eventNames().abortEvent
            || eventType == eventNames().changeEvent
            || eventType == eventNames().errorEvent
            || eventType == eventNames().loadEvent
            || eventType == eventNames().resetEvent
            || eventType == eventNames().resizeEvent
            || eventType == eventNames().scrollEvent
            || eventType == eventNames().selectEvent
            || eventType == eventNames().selectstartEvent);
}
示例#2
0
void InsertionPoint::removedFrom(ContainerNode* insertionPoint)
{
    ShadowRoot* root = containingShadowRoot();
    if (!root)
        root = insertionPoint->containingShadowRoot();

    if (root && root->hostElement()) {
        root->invalidateDistribution();
        root->distributor().invalidateInsertionPointList();
    }

    // Since this insertion point is no longer visible from the shadow subtree, it need to clean itself up.
    clearDistribution();

    HTMLElement::removedFrom(insertionPoint);
}