1/**
2 * Copyright (C) 2000 Lars Knoll (knoll@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
30namespace blink {
31
32static PassRefPtr<StringImpl> newlineString()
33{
34    DEFINE_STATIC_LOCAL(const String, string, ("\n"));
35    return string.impl();
36}
37
38RenderBR::RenderBR(Node* node)
39    : RenderText(node, newlineString())
40{
41}
42
43RenderBR::~RenderBR()
44{
45}
46
47int RenderBR::lineHeight(bool firstLine) const
48{
49    RenderStyle* s = style(firstLine && document().styleEngine()->usesFirstLineRules());
50    return s->computedLineHeight();
51}
52
53void RenderBR::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
54{
55    RenderText::styleDidChange(diff, oldStyle);
56}
57
58int RenderBR::caretMinOffset() const
59{
60    return 0;
61}
62
63int RenderBR::caretMaxOffset() const
64{
65    return 1;
66}
67
68PositionWithAffinity RenderBR::positionForPoint(const LayoutPoint&)
69{
70    return createPositionWithAffinity(0, DOWNSTREAM);
71}
72
73} // namespace blink
74