--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderSVGBlock.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2006 Apple Computer, Inc.
+ * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) Research In Motion Limited 2010. All rights reserved.
+ *
+ * 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"
+
+#if ENABLE(SVG)
+#include "RenderSVGBlock.h"
+
+#include "SVGElement.h"
+
+namespace WebCore {
+
+RenderSVGBlock::RenderSVGBlock(SVGElement* node)
+ : RenderBlock(node)
+{
+}
+
+void RenderSVGBlock::setStyle(PassRefPtr<RenderStyle> style)
+{
+ RefPtr<RenderStyle> useStyle = style;
+
+ // SVG text layout code expects us to be a block-level style element.
+ if (useStyle->isDisplayInlineType()) {
+ RefPtr<RenderStyle> newStyle = RenderStyle::create();
+ newStyle->inheritFrom(useStyle.get());
+ newStyle->setDisplay(BLOCK);
+ useStyle = newStyle.release();
+ }
+
+ RenderBlock::setStyle(useStyle.release());
+}
+
+void RenderSVGBlock::updateBoxModelInfoFromStyle()
+{
+ RenderBlock::updateBoxModelInfoFromStyle();
+
+ // RenderSVGlock, used by Render(SVGText|ForeignObject), is not allowed to call setHasOverflowClip(true).
+ // RenderBlock assumes a layer to be present when the overflow clip functionality is requested. Both
+ // Render(SVGText|ForeignObject) return 'false' on 'requiresLayer'. Fine for RenderSVGText.
+ //
+ // If we want to support overflow rules for <foreignObject> we can choose between two solutions:
+ // a) make RenderForeignObject require layers and SVG layer aware
+ // b) reactor overflow logic out of RenderLayer (as suggested by dhyatt), which is a large task
+ //
+ // Until this is resolved, disable overflow support. Opera/FF don't support it as well at the moment (Feb 2010).
+ //
+ // Note: This does NOT affect overflow handling on outer/inner <svg> elements - this is handled
+ // manually by RenderSVGRoot - which owns the documents enclosing root layer and thus works fine.
+ setHasOverflowClip(false);
+}
+
+void RenderSVGBlock::absoluteRects(Vector<IntRect>&, int, int)
+{
+ // This code path should never be taken for SVG, as we're assuming useTransforms=true everywhere, absoluteQuads should be used.
+ ASSERT_NOT_REACHED();
+}
+}
+
+#endif