示例#1
0
bool RenderReplaced::shouldPaint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
    if (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseOutline && paintInfo.phase != PaintPhaseSelfOutline 
            && paintInfo.phase != PaintPhaseSelection && paintInfo.phase != PaintPhaseMask)
        return false;

    if (!paintInfo.shouldPaintWithinRoot(*this))
        return false;
        
    // if we're invisible or haven't received a layout yet, then just bail.
    if (style().visibility() != VISIBLE)
        return false;
    
    RenderNamedFlowFragment* namedFlowFragment = currentRenderNamedFlowFragment();
    // Check our region range to make sure we need to be painting in this region.
    if (namedFlowFragment && !namedFlowFragment->flowThread()->objectShouldFragmentInFlowRegion(this, namedFlowFragment))
        return false;

    LayoutPoint adjustedPaintOffset = paintOffset + location();

    // Early exit if the element touches the edges.
    LayoutUnit top = adjustedPaintOffset.y() + visualOverflowRect().y();
    LayoutUnit bottom = adjustedPaintOffset.y() + visualOverflowRect().maxY();
    if (isSelected() && m_inlineBoxWrapper) {
        const RootInlineBox& rootBox = m_inlineBoxWrapper->root();
        LayoutUnit selTop = paintOffset.y() + rootBox.selectionTop();
        LayoutUnit selBottom = paintOffset.y() + selTop + rootBox.selectionHeight();
        top = std::min(selTop, top);
        bottom = std::max(selBottom, bottom);
    }
    
    LayoutRect localRepaintRect = paintInfo.rect;
    adjustRectWithMaximumOutline(paintInfo.phase, localRepaintRect);
    if (adjustedPaintOffset.x() + visualOverflowRect().x() >= localRepaintRect.maxX() || adjustedPaintOffset.x() + visualOverflowRect().maxX() <= localRepaintRect.x())
        return false;

    if (top >= localRepaintRect.maxY() || bottom <= localRepaintRect.y())
        return false;

    return true;
}
示例#2
0
static PassRefPtr<InspectorObject> buildObjectForElementInfo(Node* node)
{
    if (!node->isElementNode() || !node->document().frame())
        return nullptr;

    RefPtr<InspectorObject> elementInfo = InspectorObject::create();

    Element* element = toElement(node);
    bool isXHTML = element->document().isXHTMLDocument();
    elementInfo->setString("tagName", isXHTML ? element->nodeName() : element->nodeName().lower());
    elementInfo->setString("idValue", element->getIdAttribute());
    HashSet<AtomicString> usedClassNames;
    if (element->hasClass() && element->isStyledElement()) {
        StringBuilder classNames;
        const SpaceSplitString& classNamesString = toStyledElement(element)->classNames();
        size_t classNameCount = classNamesString.size();
        for (size_t i = 0; i < classNameCount; ++i) {
            const AtomicString& className = classNamesString[i];
            if (usedClassNames.contains(className))
                continue;
            usedClassNames.add(className);
            classNames.append('.');
            classNames.append(className);
        }
        elementInfo->setString("className", classNames.toString());
    }

    RenderElement* renderer = element->renderer();
    Frame* containingFrame = node->document().frame();
    FrameView* containingView = containingFrame->view();
    IntRect boundingBox = pixelSnappedIntRect(containingView->contentsToRootView(renderer->absoluteBoundingBoxRect()));
    RenderBoxModelObject* modelObject = renderer->isBoxModelObject() ? toRenderBoxModelObject(renderer) : nullptr;
    elementInfo->setString("nodeWidth", String::number(modelObject ? adjustForAbsoluteZoom(modelObject->pixelSnappedOffsetWidth(), *modelObject) : boundingBox.width()));
    elementInfo->setString("nodeHeight", String::number(modelObject ? adjustForAbsoluteZoom(modelObject->pixelSnappedOffsetHeight(), *modelObject) : boundingBox.height()));
    
    if (renderer->isRenderNamedFlowFragmentContainer()) {
        RenderNamedFlowFragment* region = toRenderBlockFlow(renderer)->renderNamedFlowFragment();
        if (region->isValid()) {
            RenderFlowThread* flowThread = region->flowThread();
            ASSERT(flowThread && flowThread->isRenderNamedFlowThread());
            RefPtr<InspectorObject> regionFlowInfo = InspectorObject::create();
            regionFlowInfo->setString("name", toRenderNamedFlowThread(flowThread)->flowThreadName());
            regionFlowInfo->setArray("regions", buildObjectForCSSRegionsHighlight(region, flowThread));
            elementInfo->setObject("regionFlowInfo", regionFlowInfo.release());
        }
    }

    RenderFlowThread* containingFlowThread = renderer->flowThreadContainingBlock();
    if (containingFlowThread && containingFlowThread->isRenderNamedFlowThread()) {
        RefPtr<InspectorObject> contentFlowInfo = InspectorObject::create();
        contentFlowInfo->setString("name", toRenderNamedFlowThread(containingFlowThread)->flowThreadName());
        elementInfo->setObject("contentFlowInfo", contentFlowInfo.release());
    }

#if ENABLE(CSS_SHAPES)
    if (renderer->isBox()) {
        RenderBox* renderBox = toRenderBox(renderer);
        if (RefPtr<InspectorObject> shapeObject = buildObjectForShapeOutside(containingFrame, renderBox))
            elementInfo->setObject("shapeOutsideInfo", shapeObject.release());
    }
#endif

    // Need to enable AX to get the computed role.
    if (!WebCore::AXObjectCache::accessibilityEnabled())
        WebCore::AXObjectCache::enableAccessibility();

    if (AXObjectCache* axObjectCache = node->document().axObjectCache()) {
        if (AccessibilityObject* axObject = axObjectCache->getOrCreate(node))
            elementInfo->setString("role", axObject->computedRoleString());
    }

    return elementInfo.release();
}