15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/** 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2006 Apple Computer, Inc. 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is free software; you can redistribute it and/or 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modify it under the terms of the GNU Library General Public 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * License as published by the Free Software Foundation; either 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * version 2 of the License, or (at your option) any later version. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is distributed in the hope that it will be useful, 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Library General Public License for more details. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * You should have received a copy of the GNU Library General Public License 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Boston, MA 02110-1301, USA. 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 2353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/RenderBR.h" 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/dom/Document.h" 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)static PassRefPtr<StringImpl> newlineString() 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 31d24c94b5090b6aa121f0f82325c9379004dc3196Ben Murdoch DEFINE_STATIC_LOCAL(const String, string, ("\n")); 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return string.impl(); 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)RenderBR::RenderBR(Node* node) 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : RenderText(node, newlineString()) 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_lineHeight(-1) 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)RenderBR::~RenderBR() 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)int RenderBR::lineHeight(bool firstLine) const 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (firstLine && document()->styleSheetCollection()->usesFirstLineRules()) { 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderStyle* s = style(firstLine); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (s != style()) 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return s->computedLineHeight(view()); 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 5202772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_lineHeight == -1) 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineHeight = style()->computedLineHeight(view()); 5502772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_lineHeight; 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RenderBR::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderText::styleDidChange(diff, oldStyle); 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineHeight = -1; 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6502772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdochint RenderBR::caretMinOffset() const 6602772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch{ 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7002772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdochint RenderBR::caretMaxOffset() const 7102772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch{ 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 1; 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 75f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles)PositionWithAffinity RenderBR::positionForPoint(const LayoutPoint&) 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 77f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles) return createPositionWithAffinity(0, DOWNSTREAM); 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 81