Ejemplo n.º 1
0
void HTMLImport::recalcTreeState(HTMLImport* root)
{
    WillBeHeapHashMap<RawPtrWillBeMember<HTMLImport>, HTMLImportState> snapshot;
    WillBeHeapVector<RawPtrWillBeMember<HTMLImport>> updated;

    for (HTMLImport* i = root; i; i = traverseNext(i)) {
        snapshot.add(i, i->state());
        i->m_state = HTMLImportState::invalidState();
    }

    // The post-visit DFS order matters here because
    // HTMLImportStateResolver in recalcState() Depends on
    // |m_state| of its children and precedents of ancestors.
    // Accidental cycle dependency of state computation is prevented
    // by invalidateCachedState() and isStateCacheValid() check.
    for (HTMLImport* i = traverseFirstPostOrder(root); i; i = traverseNextPostOrder(i)) {
        ASSERT(!i->m_state.isValid());
        i->m_state = HTMLImportStateResolver(i).resolve();

        HTMLImportState newState = i->state();
        HTMLImportState oldState = snapshot.get(i);
        // Once the state reaches Ready, it shouldn't go back.
        ASSERT(!oldState.isReady() || oldState <= newState);
        if (newState != oldState)
            updated.append(i);
    }

    for (size_t i = 0; i < updated.size(); ++i)
        updated[i]->stateDidChange();
}
Ejemplo n.º 2
0
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);
}
Ejemplo n.º 3
0
void findGoodTouchTargets(const IntRect& touchBox, LocalFrame* mainFrame, Vector<IntRect>& goodTargets, WillBeHeapVector<RawPtrWillBeMember<Node> >& highlightNodes)
{
    goodTargets.clear();

    int touchPointPadding = ceil(std::max(touchBox.width(), touchBox.height()) * 0.5);

    IntPoint touchPoint = touchBox.center();
    IntPoint contentsPoint = mainFrame->view()->windowToContents(touchPoint);

    HitTestResult result = mainFrame->eventHandler().hitTestResultAtPoint(contentsPoint, HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::ConfusingAndOftenMisusedDisallowShadowContent, IntSize(touchPointPadding, touchPointPadding));
    const WillBeHeapListHashSet<RefPtrWillBeMember<Node> >& hitResults = result.rectBasedTestResult();

    // Blacklist nodes that are container of disambiguated nodes.
    // It is not uncommon to have a clickable <div> that contains other clickable objects.
    // This heuristic avoids excessive disambiguation in that case.
    WillBeHeapHashSet<RawPtrWillBeMember<Node> > blackList;
    for (WillBeHeapListHashSet<RefPtrWillBeMember<Node> >::const_iterator it = hitResults.begin(); it != hitResults.end(); ++it) {
        // Ignore any Nodes that can't be clicked on.
        RenderObject* renderer = it->get()->renderer();
        if (!renderer || !it->get()->willRespondToMouseClickEvents())
            continue;

        // Blacklist all of the Node's containers.
        for (RenderBlock* container = renderer->containingBlock(); container; container = container->containingBlock()) {
            Node* containerNode = container->node();
            if (!containerNode)
                continue;
            if (!blackList.add(containerNode).isNewEntry)
                break;
        }
    }

    WillBeHeapHashMap<RawPtrWillBeMember<Node>, TouchTargetData> touchTargets;
    float bestScore = 0;
    for (WillBeHeapListHashSet<RefPtrWillBeMember<Node> >::const_iterator it = hitResults.begin(); it != hitResults.end(); ++it) {
        for (Node* node = it->get(); node; node = node->parentNode()) {
            if (blackList.contains(node))
                continue;
            if (node->isDocumentNode() || isHTMLHtmlElement(*node) || isHTMLBodyElement(*node))
                break;
            if (node->willRespondToMouseClickEvents()) {
                TouchTargetData& targetData = touchTargets.add(node, TouchTargetData()).storedValue->value;
                targetData.windowBoundingBox = boundingBoxForEventNodes(node);
                targetData.score = scoreTouchTarget(touchPoint, touchPointPadding, targetData.windowBoundingBox);
                bestScore = std::max(bestScore, targetData.score);
                break;
            }
        }
    }

    for (WillBeHeapHashMap<RawPtrWillBeMember<Node>, TouchTargetData>::iterator it = touchTargets.begin(); it != touchTargets.end(); ++it) {
        // Currently the scoring function uses the overlap area with the fat point as the score.
        // We ignore the candidates that has less than 1/2 overlap (we consider not really ambiguous enough) than the best candidate to avoid excessive popups.
        if (it->value.score < bestScore * 0.5)
            continue;
        goodTargets.append(it->value.windowBoundingBox);
        highlightNodes.append(it->key);
    }
}
Ejemplo n.º 4
0
void CSSAnimations::maybeApplyPendingUpdate(Element* element)
{
    if (!m_pendingUpdate) {
        m_previousActiveInterpolationsForAnimations.clear();
        return;
    }

    OwnPtrWillBeRawPtr<CSSAnimationUpdate> update = m_pendingUpdate.release();

    m_previousActiveInterpolationsForAnimations.swap(update->activeInterpolationsForAnimations());

    // FIXME: cancelling, pausing, unpausing animations all query compositingState, which is not necessarily up to date here
    // since we call this from recalc style.
    // https://code.google.com/p/chromium/issues/detail?id=339847
    DisableCompositingQueryAsserts disabler;

    for (const AtomicString& animationName : update->cancelledAnimationNames()) {
        RefPtrWillBeRawPtr<AnimationPlayer> player = m_animations.take(animationName);
        player->cancel();
        player->update(TimingUpdateOnDemand);
    }

    for (const AtomicString& animationName : update->animationsWithPauseToggled()) {
        AnimationPlayer* player = m_animations.get(animationName);
        if (player->paused())
            player->unpause();
        else
            player->pause();
        if (player->outdated())
            player->update(TimingUpdateOnDemand);
    }

    for (const auto& entry : update->newAnimations()) {
        const InertAnimation* inertAnimation = entry.animation.get();
        OwnPtrWillBeRawPtr<AnimationEventDelegate> eventDelegate = adoptPtrWillBeNoop(new AnimationEventDelegate(element, entry.name));
        RefPtrWillBeRawPtr<Animation> animation = Animation::create(element, inertAnimation->effect(), inertAnimation->specifiedTiming(), Animation::DefaultPriority, eventDelegate.release());
        animation->setName(inertAnimation->name());
        RefPtrWillBeRawPtr<AnimationPlayer> player = element->document().timeline().createAnimationPlayer(animation.get());
        if (inertAnimation->paused())
            player->pause();
        player->update(TimingUpdateOnDemand);
        m_animations.set(entry.name, player.get());
    }

    // Transitions that are run on the compositor only update main-thread state
    // lazily. However, we need the new state to know what the from state shoud
    // be when transitions are retargeted. Instead of triggering complete style
    // recalculation, we find these cases by searching for new transitions that
    // have matching cancelled animation property IDs on the compositor.
    WillBeHeapHashMap<CSSPropertyID, std::pair<RefPtrWillBeMember<Animation>, double>> retargetedCompositorTransitions;
    for (CSSPropertyID id : update->cancelledTransitions()) {
        ASSERT(m_transitions.contains(id));

        RefPtrWillBeRawPtr<AnimationPlayer> player = m_transitions.take(id).player;
        Animation* animation = toAnimation(player->source());
        if (animation->hasActiveAnimationsOnCompositor(id) && update->newTransitions().find(id) != update->newTransitions().end())
            retargetedCompositorTransitions.add(id, std::pair<RefPtrWillBeMember<Animation>, double>(animation, player->startTimeInternal()));
        player->cancel();
        player->update(TimingUpdateOnDemand);
    }

    for (const auto& entry : update->newTransitions()) {
        const CSSAnimationUpdate::NewTransition& newTransition = entry.value;

        RunningTransition runningTransition;
        runningTransition.from = newTransition.from;
        runningTransition.to = newTransition.to;

        CSSPropertyID id = newTransition.id;
        InertAnimation* inertAnimation = newTransition.animation.get();
        OwnPtrWillBeRawPtr<TransitionEventDelegate> eventDelegate = adoptPtrWillBeNoop(new TransitionEventDelegate(element, newTransition.eventId));

        RefPtrWillBeRawPtr<AnimationEffect> effect = inertAnimation->effect();

        if (retargetedCompositorTransitions.contains(id)) {
            const std::pair<RefPtrWillBeMember<Animation>, double>& oldTransition = retargetedCompositorTransitions.get(id);
            RefPtrWillBeRawPtr<Animation> oldAnimation = oldTransition.first;
            double oldStartTime = oldTransition.second;
            double inheritedTime = isNull(oldStartTime) ? 0 : element->document().timeline().currentTimeInternal() - oldStartTime;

            AnimatableValueKeyframeEffectModel* oldEffect = toAnimatableValueKeyframeEffectModel(inertAnimation->effect());
            const KeyframeVector& frames = oldEffect->getFrames();

            AnimatableValueKeyframeVector newFrames;
            newFrames.append(toAnimatableValueKeyframe(frames[0]->clone().get()));
            newFrames.append(toAnimatableValueKeyframe(frames[1]->clone().get()));

            newFrames[0]->clearPropertyValue(id);
            RefPtrWillBeRawPtr<InertAnimation> inertAnimationForSampling = InertAnimation::create(oldAnimation->effect(), oldAnimation->specifiedTiming(), false);
            OwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation>>> sample = inertAnimationForSampling->sample(inheritedTime);
            ASSERT(sample->size() == 1);
            newFrames[0]->setPropertyValue(id, toLegacyStyleInterpolation(sample->at(0).get())->currentValue());

            effect = AnimatableValueKeyframeEffectModel::create(newFrames);
        }

        RefPtrWillBeRawPtr<Animation> transition = Animation::create(element, effect, inertAnimation->specifiedTiming(), Animation::TransitionPriority, eventDelegate.release());
        transition->setName(inertAnimation->name());
        RefPtrWillBeRawPtr<AnimationPlayer> player = element->document().timeline().createAnimationPlayer(transition.get());
        player->update(TimingUpdateOnDemand);
        runningTransition.player = player;
        m_transitions.set(id, runningTransition);
        ASSERT(id != CSSPropertyInvalid);
        blink::Platform::current()->histogramSparse("WebCore.Animation.CSSProperties", UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(id));
    }
}