| /* |
| * 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/paint/SVGContainerPainter.h" |
| #include "core/rendering/RenderView.h" |
| #include "core/rendering/svg/SVGRenderSupport.h" |
| #include "core/rendering/svg/SVGResources.h" |
| #include "core/rendering/svg/SVGResourcesCache.h" |
| |
| namespace blink { |
| |
| RenderSVGContainer::RenderSVGContainer(SVGElement* node) |
| : RenderSVGModelObject(node) |
| , m_objectBoundingBoxValid(false) |
| , m_needsBoundariesUpdate(true) |
| { |
| } |
| |
| RenderSVGContainer::~RenderSVGContainer() |
| { |
| } |
| |
| void RenderSVGContainer::trace(Visitor* visitor) |
| { |
| visitor->trace(m_children); |
| RenderSVGModelObject::trace(visitor); |
| } |
| |
| 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(); |
| |
| SVGRenderSupport::layoutChildren(this, selfNeedsLayout() || SVGRenderSupport::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(RenderObject* child, RenderObject* beforeChild) |
| { |
| RenderSVGModelObject::addChild(child, beforeChild); |
| SVGResourcesCache::clientWasAddedToTree(child, child->style()); |
| } |
| |
| void RenderSVGContainer::removeChild(RenderObject* child) |
| { |
| SVGResourcesCache::clientWillBeRemovedFromTree(child); |
| RenderSVGModelObject::removeChild(child); |
| } |
| |
| bool RenderSVGContainer::selfWillPaint() |
| { |
| SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this); |
| return resources && resources->filter(); |
| } |
| |
| void RenderSVGContainer::paint(PaintInfo& paintInfo, const LayoutPoint&) |
| { |
| SVGContainerPainter(*this).paint(paintInfo); |
| } |
| |
| // addFocusRingRects is called from paintOutline and needs to be in the same coordinates as the paintOuline call |
| void RenderSVGContainer::addFocusRingRects(Vector<LayoutRect>& rects, const LayoutPoint&, const RenderLayerModelObject*) const |
| { |
| LayoutRect paintRectInParent = LayoutRect(localToParentTransform().mapRect(paintInvalidationRectInLocalCoordinates())); |
| if (!paintRectInParent.isEmpty()) |
| rects.append(paintRectInParent); |
| } |
| |
| void RenderSVGContainer::updateCachedBoundaries() |
| { |
| SVGRenderSupport::computeContainerBoundingBoxes(this, m_objectBoundingBox, m_objectBoundingBoxValid, m_strokeBoundingBox, m_paintInvalidationBoundingBox); |
| SVGRenderSupport::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 (!SVGRenderSupport::transformToUserSpaceAndCheckClipping(this, localToParentTransform(), pointInParent, localPoint)) |
| return false; |
| |
| for (RenderObject* 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; |
| } |
| |
| } |