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.
25 #include "RenderSVGBlock.h"
27 #include "RenderSVGResource.h"
28 #include "SVGElement.h"
32 RenderSVGBlock::RenderSVGBlock(SVGElement* node)
37 LayoutRect RenderSVGBlock::visualOverflowRect() const
39 LayoutRect borderRect = borderBoxRect();
41 if (const ShadowData* textShadow = style()->textShadow())
42 textShadow->adjustRectForShadow(borderRect);
47 void RenderSVGBlock::setStyle(PassRefPtr<RenderStyle> style)
49 RefPtr<RenderStyle> useStyle = style;
51 // SVG text layout code expects us to be a block-level style element.
52 if (useStyle->isDisplayInlineType()) {
53 RefPtr<RenderStyle> newStyle = RenderStyle::create();
54 newStyle->inheritFrom(useStyle.get());
55 newStyle->setDisplay(BLOCK);
56 useStyle = newStyle.release();
59 RenderBlock::setStyle(useStyle.release());
62 void RenderSVGBlock::updateBoxModelInfoFromStyle()
64 RenderBlock::updateBoxModelInfoFromStyle();
66 // RenderSVGlock, used by Render(SVGText|ForeignObject), is not allowed to call setHasOverflowClip(true).
67 // RenderBlock assumes a layer to be present when the overflow clip functionality is requested. Both
68 // Render(SVGText|ForeignObject) return 'false' on 'requiresLayer'. Fine for RenderSVGText.
70 // If we want to support overflow rules for <foreignObject> we can choose between two solutions:
71 // a) make RenderSVGForeignObject require layers and SVG layer aware
72 // b) reactor overflow logic out of RenderLayer (as suggested by dhyatt), which is a large task
74 // Until this is resolved, disable overflow support. Opera/FF don't support it as well at the moment (Feb 2010).
76 // Note: This does NOT affect overflow handling on outer/inner <svg> elements - this is handled
77 // manually by RenderSVGRoot - which owns the documents enclosing root layer and thus works fine.
78 setHasOverflowClip(false);
81 void RenderSVGBlock::absoluteRects(Vector<LayoutRect>&, const LayoutPoint&)
83 // This code path should never be taken for SVG, as we're assuming useTransforms=true everywhere, absoluteQuads should be used.
87 void RenderSVGBlock::willBeDestroyed()
89 SVGResourcesCache::clientDestroyed(this);
90 RenderBlock::willBeDestroyed();
93 void RenderSVGBlock::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
95 if (diff == StyleDifferenceLayout)
96 setNeedsBoundariesUpdate();
97 RenderBlock::styleWillChange(diff, newStyle);
100 void RenderSVGBlock::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
102 RenderBlock::styleDidChange(diff, oldStyle);
103 SVGResourcesCache::clientStyleChanged(this, diff, style());
106 void RenderSVGBlock::updateFromElement()
108 RenderBlock::updateFromElement();
109 SVGResourcesCache::clientUpdatedFromElement(this, style());