1 /* 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #ifndef RenderBR_h 22 #define RenderBR_h 23 24 #include "core/rendering/RenderText.h" 25 26 /* 27 * The whole class here is a hack to get <br> working, as long as we don't have support for 28 * CSS2 :before and :after pseudo elements 29 */ 30 namespace blink { 31 32 class RenderBR FINAL : public RenderText { 33 public: 34 explicit RenderBR(Node*); 35 virtual ~RenderBR(); 36 renderName()37 virtual const char* renderName() const OVERRIDE { return "RenderBR"; } 38 selectionRectForPaintInvalidation(const RenderLayerModelObject *)39 virtual LayoutRect selectionRectForPaintInvalidation(const RenderLayerModelObject* /*paintInvalidationContainer*/) const OVERRIDE { return LayoutRect(); } 40 41 virtual float width(unsigned /*from*/, unsigned /*len*/, const Font&, float /*xPos*/, TextDirection, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/ , GlyphOverflow* = 0) const OVERRIDE { return 0; } 42 virtual float width(unsigned /*from*/, unsigned /*len*/, float /*xpos*/, TextDirection, bool = false /*firstLine*/, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/, GlyphOverflow* = 0) const OVERRIDE { return 0; } 43 44 int lineHeight(bool firstLine) const; 45 46 // overrides isBR()47 virtual bool isBR() const OVERRIDE { return true; } 48 49 virtual int caretMinOffset() const OVERRIDE; 50 virtual int caretMaxOffset() const OVERRIDE; 51 52 virtual PositionWithAffinity positionForPoint(const LayoutPoint&) OVERRIDE FINAL; 53 54 protected: 55 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE; 56 }; 57 58 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderBR, isBR()); 59 60 } // namespace blink 61 62 #endif // RenderBR_h 63