2 * Copyright (C) 2006 Apple Computer, Inc.
3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
4 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
24 #include "core/rendering/svg/RenderSVGBlock.h"
26 #include "core/rendering/RenderView.h"
27 #include "core/rendering/style/ShadowList.h"
28 #include "core/rendering/svg/SVGRenderSupport.h"
29 #include "core/rendering/svg/SVGResourcesCache.h"
30 #include "core/svg/SVGElement.h"
34 RenderSVGBlock::RenderSVGBlock(SVGElement* element)
35 : RenderBlockFlow(element)
39 LayoutRect RenderSVGBlock::visualOverflowRect() const
41 LayoutRect borderRect = borderBoxRect();
43 if (const ShadowList* textShadow = style()->textShadow())
44 textShadow->adjustRectForShadow(borderRect);
49 void RenderSVGBlock::updateFromStyle()
51 RenderBlock::updateFromStyle();
53 // RenderSVGlock, used by Render(SVGText|ForeignObject), is not allowed to call setHasOverflowClip(true).
54 // RenderBlock assumes a layer to be present when the overflow clip functionality is requested. Both
55 // Render(SVGText|ForeignObject) return 'NoLayer' on 'layerTypeRequired'. Fine for RenderSVGText.
57 // If we want to support overflow rules for <foreignObject> we can choose between two solutions:
58 // a) make RenderSVGForeignObject require layers and SVG layer aware
59 // b) reactor overflow logic out of RenderLayer (as suggested by dhyatt), which is a large task
61 // Until this is resolved, disable overflow support. Opera/FF don't support it as well at the moment (Feb 2010).
63 // Note: This does NOT affect overflow handling on outer/inner <svg> elements - this is handled
64 // manually by RenderSVGRoot - which owns the documents enclosing root layer and thus works fine.
65 setHasOverflowClip(false);
68 void RenderSVGBlock::absoluteRects(Vector<IntRect>&, const LayoutPoint&) const
70 // This code path should never be taken for SVG, as we're assuming useTransforms=true everywhere, absoluteQuads should be used.
74 void RenderSVGBlock::willBeDestroyed()
76 SVGResourcesCache::clientDestroyed(this);
77 RenderBlockFlow::willBeDestroyed();
80 void RenderSVGBlock::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
82 if (diff.needsFullLayout())
83 setNeedsBoundariesUpdate();
85 RenderBlock::styleDidChange(diff, oldStyle);
86 SVGResourcesCache::clientStyleChanged(this, diff, style());
89 void RenderSVGBlock::mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState& transformState, MapCoordinatesFlags, bool* wasFixed) const
91 SVGRenderSupport::mapLocalToContainer(this, repaintContainer, transformState, wasFixed);
94 const RenderObject* RenderSVGBlock::pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap& geometryMap) const
96 return SVGRenderSupport::pushMappingToContainer(this, ancestorToStopAt, geometryMap);
99 LayoutRect RenderSVGBlock::clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const
101 return SVGRenderSupport::clippedOverflowRectForRepaint(this, repaintContainer);
104 void RenderSVGBlock::computeFloatRectForRepaint(const RenderLayerModelObject* repaintContainer, FloatRect& repaintRect, bool fixed) const
106 SVGRenderSupport::computeFloatRectForRepaint(this, repaintContainer, repaintRect, fixed);
109 bool RenderSVGBlock::nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation&, const LayoutPoint&, HitTestAction)
111 ASSERT_NOT_REACHED();
115 void RenderSVGBlock::repaintTreeAfterLayout()
117 if (!shouldCheckForInvalidationAfterLayout())
120 LayoutStateDisabler layoutStateDisabler(*this);
121 RenderBlockFlow::repaintTreeAfterLayout();