コード例 #1
0
ShadowRoot& ElementShadow::addShadowRoot(Element& shadowHost, ShadowRootType type)
{
    EventDispatchForbiddenScope assertNoEventDispatch;
    ScriptForbiddenScope forbidScript;

    if (type == ShadowRootType::V0 && m_shadowRoot) {
        DCHECK_EQ(m_shadowRoot->type(), ShadowRootType::V0);
        Deprecation::countDeprecation(shadowHost.document(), UseCounter::ElementCreateShadowRootMultiple);
    }

    if (m_shadowRoot) {
        // TODO(hayato): Is the order, from the youngest to the oldest, important?
        for (ShadowRoot* root = &youngestShadowRoot(); root; root = root->olderShadowRoot())
            root->lazyReattachIfAttached();
    }

    ShadowRoot* shadowRoot = ShadowRoot::create(shadowHost.document(), type);
    shadowRoot->setParentOrShadowHostNode(&shadowHost);
    shadowRoot->setParentTreeScope(shadowHost.treeScope());
    appendShadowRoot(*shadowRoot);
    setNeedsDistributionRecalc();

    shadowRoot->insertedInto(&shadowHost);
    shadowHost.setChildNeedsStyleRecalc();
    shadowHost.setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::Shadow));

    InspectorInstrumentation::didPushShadowRoot(&shadowHost, shadowRoot);

    return *shadowRoot;
}
コード例 #2
0
ShadowRoot& ElementShadow::addShadowRoot(Element& shadowHost, ShadowRootType type)
{
    EventDispatchForbiddenScope assertNoEventDispatch;
    ScriptForbiddenScope forbidScript;

    if (type == ShadowRootType::V0) {
        if (m_shadowRoots.isEmpty()) {
            shadowHost.willAddFirstAuthorShadowRoot();
        } else if (m_shadowRoots.head()->type() == ShadowRootType::UserAgent) {
            shadowHost.willAddFirstAuthorShadowRoot();
            UseCounter::countDeprecation(shadowHost.document(), UseCounter::ElementCreateShadowRootMultipleWithUserAgentShadowRoot);
        } else {
            UseCounter::countDeprecation(shadowHost.document(), UseCounter::ElementCreateShadowRootMultiple);
        }
    } else if (type == ShadowRootType::Open || type == ShadowRootType::Closed) {
        shadowHost.willAddFirstAuthorShadowRoot();
    }

    for (ShadowRoot* root = m_shadowRoots.head(); root; root = root->olderShadowRoot())
        root->lazyReattachIfAttached();

    RefPtrWillBeRawPtr<ShadowRoot> shadowRoot = ShadowRoot::create(shadowHost.document(), type);
    shadowRoot->setParentOrShadowHostNode(&shadowHost);
    shadowRoot->setParentTreeScope(shadowHost.treeScope());
    m_shadowRoots.push(shadowRoot.get());
    setNeedsDistributionRecalc();

    shadowRoot->insertedInto(&shadowHost);
    shadowHost.setChildNeedsStyleRecalc();
    shadowHost.setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::Shadow));

    InspectorInstrumentation::didPushShadowRoot(&shadowHost, shadowRoot.get());

    return *shadowRoot;
}
コード例 #3
0
ファイル: ElementShadow.cpp プロジェクト: Mihiri/blink
ShadowRoot& ElementShadow::addShadowRoot(Element& shadowHost, ShadowRoot::ShadowRootType type)
{
    RefPtr<ShadowRoot> shadowRoot = ShadowRoot::create(shadowHost.document(), type);

    for (ShadowRoot* root = youngestShadowRoot(); root; root = root->olderShadowRoot())
        root->lazyReattachIfAttached();

    shadowRoot->setParentOrShadowHostNode(&shadowHost);
    shadowRoot->setParentTreeScope(shadowHost.treeScope());
    m_shadowRoots.push(shadowRoot.get());
    ChildNodeInsertionNotifier(shadowHost).notify(*shadowRoot);
    setNeedsDistributionRecalc();

    // addShadowRoot() affects apply-author-styles. However, we know that the youngest shadow root has not had any children yet.
    // The youngest shadow root's apply-author-styles is default (false). So we can just set m_applyAuthorStyles false.
    m_applyAuthorStyles = false;

    shadowHost.didAddShadowRoot(*shadowRoot);
    InspectorInstrumentation::didPushShadowRoot(&shadowHost, shadowRoot.get());

    ASSERT(m_shadowRoots.head());
    ASSERT(shadowRoot.get() == m_shadowRoots.head());
    return *m_shadowRoots.head();
}