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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* Copyright (C) 2013 Apple Inc. 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.
*
*/
#ifndef RenderLineBreak_h
#define RenderLineBreak_h
#include "RenderBoxModelObject.h"
namespace WebCore {
class InlineElementBox;
class HTMLElement;
class Position;
class RenderLineBreak final : public RenderBoxModelObject {
public:
RenderLineBreak(HTMLElement&, Ref<RenderStyle>&&);
virtual ~RenderLineBreak();
// FIXME: The lies here keep render tree dump based test results unchanged.
virtual const char* renderName() const override { return m_isWBR ? "RenderWordBreak" : "RenderBR"; }
virtual bool isWBR() const override { return m_isWBR; }
std::unique_ptr<InlineElementBox> createInlineBox();
InlineElementBox* inlineBoxWrapper() const { return m_inlineBoxWrapper; }
void setInlineBoxWrapper(InlineElementBox*);
void deleteInlineBoxWrapper();
void replaceInlineBoxWrapper(InlineElementBox&);
void dirtyLineBoxes(bool fullLayout);
void deleteLineBoxesBeforeSimpleLineLayout();
IntRect linesBoundingBox() const;
virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const override;
virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override;
#if PLATFORM(IOS)
virtual void collectSelectionRects(Vector<SelectionRect>&, unsigned startOffset = 0, unsigned endOffset = std::numeric_limits<unsigned>::max()) override;
#endif
private:
void node() const = delete;
virtual bool canHaveChildren() const override { return false; }
virtual void paint(PaintInfo&, const LayoutPoint&) override { }
virtual VisiblePosition positionForPoint(const LayoutPoint&, const RenderRegion*) override;
virtual int caretMinOffset() const override;
virtual int caretMaxOffset() const override;
virtual bool canBeSelectionLeaf() const override;
virtual LayoutRect localCaretRect(InlineBox*, int caretOffset, LayoutUnit* extraWidthToEndOfLine) override;
virtual void setSelectionState(SelectionState) override;
virtual LayoutUnit lineHeight(bool firstLine, LineDirectionMode, LinePositionMode) const override;
virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode) const override;
virtual LayoutUnit marginTop() const override { return 0; }
virtual LayoutUnit marginBottom() const override { return 0; }
virtual LayoutUnit marginLeft() const override { return 0; }
virtual LayoutUnit marginRight() const override { return 0; }
virtual LayoutUnit marginBefore(const RenderStyle*) const override { return 0; }
virtual LayoutUnit marginAfter(const RenderStyle*) const override { return 0; }
virtual LayoutUnit marginStart(const RenderStyle*) const override { return 0; }
virtual LayoutUnit marginEnd(const RenderStyle*) const override { return 0; }
virtual LayoutUnit offsetWidth() const override { return linesBoundingBox().width(); }
virtual LayoutUnit offsetHeight() const override { return linesBoundingBox().height(); }
LayoutRect borderBoundingBox() const override { return LayoutRect(LayoutPoint(), linesBoundingBox().size()); }
virtual LayoutRect frameRectForStickyPositioning() const override { ASSERT_NOT_REACHED(); return LayoutRect(); }
virtual LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject*) const override { return LayoutRect(); }
virtual void updateFromStyle() override;
virtual bool requiresLayer() const override { return false; }
InlineElementBox* m_inlineBoxWrapper;
mutable int m_cachedLineHeight;
bool m_isWBR;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderLineBreak, isLineBreak())
#endif // RenderLineBreak_h
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