Move RenderSVGContainer to layout/svg/LayoutSVGContainer.

Source/core/rendering/svg/RenderSVGContainer.cpp

-/*
- * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) 2004, 2005, 2007, 2008 Rob Buis <buis@kde.org>
- * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
- * Copyright (C) 2009 Google, Inc.  All rights reserved.
- * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-#include "core/rendering/svg/RenderSVGContainer.h"
-
-#include "core/layout/svg/SVGLayoutSupport.h"
-#include "core/layout/svg/SVGResources.h"
-#include "core/layout/svg/SVGResourcesCache.h"
-#include "core/paint/SVGContainerPainter.h"
-
-namespace blink {
-
-RenderSVGContainer::RenderSVGContainer(SVGElement* node)
-    : RenderSVGModelObject(node)
-    , m_objectBoundingBoxValid(false)
-    , m_needsBoundariesUpdate(true)
-    , m_hasNonIsolatedBlendingDescendants(false)
-    , m_hasNonIsolatedBlendingDescendantsDirty(false)
-{
-}
-
-RenderSVGContainer::~RenderSVGContainer()
-{
-}
-
-void RenderSVGContainer::layout()
-{
-    ASSERT(needsLayout());
-
-    // Allow RenderSVGViewportContainer to update its viewport.
-    calcViewport();
-
-    // Allow RenderSVGTransformableContainer to update its transform.
-    bool updatedTransform = calculateLocalTransform();
-
-    // RenderSVGViewportContainer needs to set the 'layout size changed' flag.
-    determineIfLayoutSizeChanged();
-
-    SVGLayoutSupport::layoutChildren(this, selfNeedsLayout() || SVGLayoutSupport::filtersForceContainerLayout(this));
-
-    // Invalidate all resources of this client if our layout changed.
-    if (everHadLayout() && needsLayout())
-        SVGResourcesCache::clientLayoutChanged(this);
-
-    if (m_needsBoundariesUpdate || updatedTransform) {
-        updateCachedBoundaries();
-        m_needsBoundariesUpdate = false;
-
-        // If our bounds changed, notify the parents.
-        RenderSVGModelObject::setNeedsBoundariesUpdate();
-    }
-
-    clearNeedsLayout();
-}
-
-void RenderSVGContainer::addChild(LayoutObject* child, LayoutObject* beforeChild)
-{
-    RenderSVGModelObject::addChild(child, beforeChild);
-    SVGResourcesCache::clientWasAddedToTree(child, child->styleRef());
-
-    bool shouldIsolateDescendants = (child->isBlendingAllowed() && child->style()->hasBlendMode()) || child->hasNonIsolatedBlendingDescendants();
-    if (shouldIsolateDescendants)
-        descendantIsolationRequirementsChanged(DescendantIsolationRequired);
-}
-
-void RenderSVGContainer::removeChild(LayoutObject* child)
-{
-    SVGResourcesCache::clientWillBeRemovedFromTree(child);
-    RenderSVGModelObject::removeChild(child);
-
-    bool hadNonIsolatedDescendants = (child->isBlendingAllowed() && child->style()->hasBlendMode()) || child->hasNonIsolatedBlendingDescendants();
-    if (hadNonIsolatedDescendants)
-        descendantIsolationRequirementsChanged(DescendantIsolationNeedsUpdate);
-}
-
-bool RenderSVGContainer::selfWillPaint()
-{
-    SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(this);
-    return resources && resources->filter();
-}
-
-void RenderSVGContainer::styleDidChange(StyleDifference diff, const LayoutStyle* oldStyle)
-{
-    RenderSVGModelObject::styleDidChange(diff, oldStyle);
-
-    bool hadIsolation = oldStyle && !isSVGHiddenContainer() && SVGLayoutSupport::willIsolateBlendingDescendantsForStyle(*oldStyle);
-    bool isolationChanged = hadIsolation == !SVGLayoutSupport::willIsolateBlendingDescendantsForObject(this);
-
-    if (!parent() || !isolationChanged)
-        return;
-
-    if (hasNonIsolatedBlendingDescendants())
-        parent()->descendantIsolationRequirementsChanged(SVGLayoutSupport::willIsolateBlendingDescendantsForObject(this) ? DescendantIsolationNeedsUpdate : DescendantIsolationRequired);
-}
-
-bool RenderSVGContainer::hasNonIsolatedBlendingDescendants() const
-{
-    if (m_hasNonIsolatedBlendingDescendantsDirty) {
-        m_hasNonIsolatedBlendingDescendants = SVGLayoutSupport::computeHasNonIsolatedBlendingDescendants(this);
-        m_hasNonIsolatedBlendingDescendantsDirty = false;
-    }
-    return m_hasNonIsolatedBlendingDescendants;
-}
-
-void RenderSVGContainer::descendantIsolationRequirementsChanged(DescendantIsolationState state)
-{
-    switch (state) {
-    case DescendantIsolationRequired:
-        m_hasNonIsolatedBlendingDescendants = true;
-        m_hasNonIsolatedBlendingDescendantsDirty = false;
-        break;
-    case DescendantIsolationNeedsUpdate:
-        if (m_hasNonIsolatedBlendingDescendantsDirty)
-            return;
-        m_hasNonIsolatedBlendingDescendantsDirty = true;
-        break;
-    }
-    if (SVGLayoutSupport::willIsolateBlendingDescendantsForObject(this))
-        return;
-    if (parent())
-        parent()->descendantIsolationRequirementsChanged(state);
-}
-
-void RenderSVGContainer::paint(const PaintInfo& paintInfo, const LayoutPoint&)
-{
-    SVGContainerPainter(*this).paint(paintInfo);
-}
-
-void RenderSVGContainer::addFocusRingRects(Vector<LayoutRect>& rects, const LayoutPoint&) const
-{
-    LayoutRect contentRect = LayoutRect(paintInvalidationRectInLocalCoordinates());
-    if (!contentRect.isEmpty())
-        rects.append(contentRect);
-}
-
-void RenderSVGContainer::updateCachedBoundaries()
-{
-    SVGLayoutSupport::computeContainerBoundingBoxes(this, m_objectBoundingBox, m_objectBoundingBoxValid, m_strokeBoundingBox, m_paintInvalidationBoundingBox);
-    SVGLayoutSupport::intersectPaintInvalidationRectWithResources(this, m_paintInvalidationBoundingBox);
-}
-
-bool RenderSVGContainer::nodeAtFloatPoint(const HitTestRequest& request, HitTestResult& result, const FloatPoint& pointInParent, HitTestAction hitTestAction)
-{
-    // Give RenderSVGViewportContainer a chance to apply its viewport clip
-    if (!pointIsInsideViewportClip(pointInParent))
-        return false;
-
-    FloatPoint localPoint;
-    if (!SVGLayoutSupport::transformToUserSpaceAndCheckClipping(this, localToParentTransform(), pointInParent, localPoint))
-        return false;
-
-    for (LayoutObject* child = lastChild(); child; child = child->previousSibling()) {
-        if (child->nodeAtFloatPoint(request, result, localPoint, hitTestAction)) {
-            updateHitTestResult(result, roundedLayoutPoint(localPoint));
-            return true;
-        }
-    }
-
-    // pointer-events=boundingBox makes it possible for containers to be direct targets
-    if (style()->pointerEvents() == PE_BOUNDINGBOX) {
-        ASSERT(isObjectBoundingBoxValid());
-        if (objectBoundingBox().contains(localPoint)) {
-            updateHitTestResult(result, roundedLayoutPoint(localPoint));
-            return true;
-        }
-    }
-    // 16.4: "If there are no graphics elements whose relevant graphics content is under the pointer (i.e., there is no target element), the event is not dispatched."
-    return false;
-}
-
-}