Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 184 insertions, 0 deletions

diff --git a/Source/WebCore/rendering/RenderSVGContainer.cpp b/Source/WebCore/rendering/RenderSVGContainer.cpp
new file mode 100644
index 0000000..32e0598
--- /dev/null
+++ b/Source/WebCore/rendering/RenderSVGContainer.cpp
@@ -0,0 +1,184 @@
+/*
+    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
+                  2004, 2005, 2007, 2008 Rob Buis <buis@kde.org>
+                  2007 Eric Seidel <eric@webkit.org>
+    Copyright (C) 2009 Google, Inc.  All rights reserved.
+                  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
+    aint 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"
+
+#if ENABLE(SVG)
+#include "RenderSVGContainer.h"
+
+#include "GraphicsContext.h"
+#include "RenderSVGResource.h"
+#include "RenderSVGResourceFilter.h"
+#include "RenderView.h"
+#include "SVGRenderSupport.h"
+#include "SVGResources.h"
+#include "SVGStyledElement.h"
+
+namespace WebCore {
+
+RenderSVGContainer::RenderSVGContainer(SVGStyledElement* node)
+    : RenderSVGModelObject(node)
+    , m_needsBoundariesUpdate(true)
+{
+}
+
+RenderSVGContainer::~RenderSVGContainer()
+{
+}
+
+void RenderSVGContainer::layout()
+{
+    ASSERT(needsLayout());
+
+    // RenderSVGRoot disables layoutState for the SVG rendering tree.
+    ASSERT(!view()->layoutStateEnabled());
+
+    // Allow RenderSVGViewportContainer to update its viewport.
+    calcViewport();
+
+    LayoutRepainter repainter(*this, checkForRepaintDuringLayout() || selfWillPaint());
+
+    // Allow RenderSVGTransformableContainer to update its transform.
+    bool updatedTransform = calculateLocalTransform();
+
+    SVGRenderSupport::layoutChildren(this, selfNeedsLayout());
+
+    // Invalidate all resources of this client if our layout changed.
+    if (m_everHadLayout && selfNeedsLayout())
+        SVGResourcesCache::clientLayoutChanged(this);
+
+    // At this point LayoutRepainter already grabbed the old bounds,
+    // recalculate them now so repaintAfterLayout() uses the new bounds.
+    if (m_needsBoundariesUpdate || updatedTransform) {
+        updateCachedBoundaries();
+        m_needsBoundariesUpdate = false;
+    
+        // If our bounds changed, notify the parents.
+        RenderSVGModelObject::setNeedsBoundariesUpdate();
+    }
+
+    repainter.repaintAfterLayout();
+    setNeedsLayout(false);
+}
+
+bool RenderSVGContainer::selfWillPaint()
+{
+#if ENABLE(FILTERS)
+    SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this);
+    return resources && resources->filter();
+#else
+    return false;
+#endif
+}
+
+void RenderSVGContainer::paint(PaintInfo& paintInfo, int, int)
+{
+    if (paintInfo.context->paintingDisabled())
+        return;
+
+    // Spec: groups w/o children still may render filter content.
+    if (!firstChild() && !selfWillPaint())
+        return;
+
+    FloatRect repaintRect = repaintRectInLocalCoordinates();
+    if (!SVGRenderSupport::paintInfoIntersectsRepaintRect(repaintRect, localToParentTransform(), paintInfo))
+        return;
+
+    PaintInfo childPaintInfo(paintInfo);
+    childPaintInfo.context->save();
+
+    // Let the RenderSVGViewportContainer subclass clip if necessary
+    applyViewportClip(childPaintInfo);
+
+    childPaintInfo.applyTransform(localToParentTransform());
+
+    bool continueRendering = true;
+    if (childPaintInfo.phase == PaintPhaseForeground)
+        continueRendering = SVGRenderSupport::prepareToRenderSVGContent(this, childPaintInfo);
+
+    if (continueRendering) {
+        childPaintInfo.updatePaintingRootForChildren(this);
+        for (RenderObject* child = firstChild(); child; child = child->nextSibling())
+            child->paint(childPaintInfo, 0, 0);
+    }
+
+    if (paintInfo.phase == PaintPhaseForeground)
+        SVGRenderSupport::finishRenderSVGContent(this, childPaintInfo, paintInfo.context);
+
+    childPaintInfo.context->restore();
+
+    // FIXME: This really should be drawn from local coordinates, but currently we hack it
+    // to avoid our clip killing our outline rect.  Thus we translate our
+    // outline rect into parent coords before drawing.
+    // FIXME: This means our focus ring won't share our rotation like it should.
+    // We should instead disable our clip during PaintPhaseOutline
+    if ((paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSelfOutline) && style()->outlineWidth() && style()->visibility() == VISIBLE) {
+        IntRect paintRectInParent = enclosingIntRect(localToParentTransform().mapRect(repaintRect));
+        paintOutline(paintInfo.context, paintRectInParent.x(), paintRectInParent.y(), paintRectInParent.width(), paintRectInParent.height());
+    }
+}
+
+// addFocusRingRects is called from paintOutline and needs to be in the same coordinates as the paintOuline call
+void RenderSVGContainer::addFocusRingRects(Vector<IntRect>& rects, int, int)
+{
+    IntRect paintRectInParent = enclosingIntRect(localToParentTransform().mapRect(repaintRectInLocalCoordinates()));
+    if (!paintRectInParent.isEmpty())
+        rects.append(paintRectInParent);
+}
+
+void RenderSVGContainer::updateCachedBoundaries()
+{
+    m_objectBoundingBox = FloatRect();
+    m_strokeBoundingBox = FloatRect();
+    m_repaintBoundingBox = FloatRect();
+
+    SVGRenderSupport::computeContainerBoundingBoxes(this, m_objectBoundingBox, m_strokeBoundingBox, m_repaintBoundingBox);
+    SVGRenderSupport::intersectRepaintRectWithResources(this, m_repaintBoundingBox);
+}
+
+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 = localToParentTransform().inverse().mapPoint(pointInParent);
+
+    if (!SVGRenderSupport::pointInClippingArea(this, localPoint))
+        return false;
+                
+    for (RenderObject* child = lastChild(); child; child = child->previousSibling()) {
+        if (child->nodeAtFloatPoint(request, result, localPoint, hitTestAction)) {
+            updateHitTestResult(result, roundedIntPoint(localPoint));
+            return true;
+        }
+    }
+
+    // Spec: Only graphical elements can be targeted by the mouse, period.
+    // 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;
+}
+
+}
+
+#endif // ENABLE(SVG)