1 /** 2 * Copyright (C) 2000 Lars Knoll (knoll (at) kde.org) 3 * Copyright (C) 2006 Apple Computer, Inc. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22 #include "config.h" 23 #include "core/rendering/RenderBR.h" 24 25 #include "core/dom/Document.h" 26 #include "core/dom/StyleEngine.h" 27 #include "core/editing/PositionWithAffinity.h" 28 #include "core/rendering/RenderView.h" 29 30 namespace blink { 31 32 static PassRefPtr<StringImpl> newlineString() 33 { 34 DEFINE_STATIC_LOCAL(const String, string, ("\n")); 35 return string.impl(); 36 } 37 38 RenderBR::RenderBR(Node* node) 39 : RenderText(node, newlineString()) 40 { 41 } 42 43 RenderBR::~RenderBR() 44 { 45 } 46 47 int RenderBR::lineHeight(bool firstLine) const 48 { 49 RenderStyle* s = style(firstLine && document().styleEngine()->usesFirstLineRules()); 50 return s->computedLineHeight(); 51 } 52 53 void RenderBR::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 54 { 55 RenderText::styleDidChange(diff, oldStyle); 56 } 57 58 int RenderBR::caretMinOffset() const 59 { 60 return 0; 61 } 62 63 int RenderBR::caretMaxOffset() const 64 { 65 return 1; 66 } 67 68 PositionWithAffinity RenderBR::positionForPoint(const LayoutPoint&) 69 { 70 return createPositionWithAffinity(0, DOWNSTREAM); 71 } 72 73 } // namespace blink 74