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1 /* | 1 /* |
2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
3 * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ight reserved. | 3 * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All r
ight reserved. |
4 * Copyright (C) 2010 Google Inc. All rights reserved. | 4 * Copyright (C) 2010 Google Inc. All rights reserved. |
5 * Copyright (C) 2013 Adobe Systems Incorporated. | 5 * Copyright (C) 2013 Adobe Systems Incorporated. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
11 * | 11 * |
12 * This library is distributed in the hope that it will be useful, | 12 * This library is distributed in the hope that it will be useful, |
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 * Library General Public License for more details. | 15 * Library General Public License for more details. |
16 * | 16 * |
17 * You should have received a copy of the GNU Library General Public License | 17 * You should have received a copy of the GNU Library General Public License |
18 * along with this library; see the file COPYING.LIB. If not, write to | 18 * along with this library; see the file COPYING.LIB. If not, write to |
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 * Boston, MA 02110-1301, USA. | 20 * Boston, MA 02110-1301, USA. |
21 * | 21 * |
22 */ | 22 */ |
23 | 23 |
24 #include "core/layout/line/BreakingContextInlineHeaders.h" | 24 #include "core/layout/line/BreakingContextInlineHeaders.h" |
25 | 25 |
26 namespace blink { | 26 namespace blink { |
27 | 27 |
28 InlineIterator BreakingContext::handleEndOfLine() | 28 InlineIterator BreakingContext::handleEndOfLine() |
29 { | 29 { |
30 if (m_lineBreak == m_resolver.position() && (!m_lineBreak.lineLayoutItem() |
| !m_lineBreak.lineLayoutItem().isBR())) { | 30 if (m_lineBreak == m_resolver.position() && (!m_lineBreak.getLineLayoutItem(
) || !m_lineBreak.getLineLayoutItem().isBR())) { |
31 // we just add as much as possible | 31 // we just add as much as possible |
32 if (m_blockStyle->whiteSpace() == PRE && !m_current.offset()) { | 32 if (m_blockStyle->whiteSpace() == PRE && !m_current.offset()) { |
33 m_lineBreak.moveTo(m_lastObject, m_lastObject.isText() ? m_lastObjec
t.length() : 0); | 33 m_lineBreak.moveTo(m_lastObject, m_lastObject.isText() ? m_lastObjec
t.length() : 0); |
34 } else if (m_lineBreak.lineLayoutItem()) { | 34 } else if (m_lineBreak.getLineLayoutItem()) { |
35 // Don't ever break in the middle of a word if we can help it. | 35 // Don't ever break in the middle of a word if we can help it. |
36 // There's no room at all. We just have to be on this line, | 36 // There's no room at all. We just have to be on this line, |
37 // even though we'll spill out. | 37 // even though we'll spill out. |
38 m_lineBreak.moveTo(m_current.lineLayoutItem(), m_current.offset()); | 38 m_lineBreak.moveTo(m_current.getLineLayoutItem(), m_current.offset()
); |
39 } | 39 } |
40 } | 40 } |
41 | 41 |
42 // FIXME Bug 100049: We do not need to consume input in a multi-segment line | 42 // FIXME Bug 100049: We do not need to consume input in a multi-segment line |
43 // unless no segment will. | 43 // unless no segment will. |
44 if (m_lineBreak == m_resolver.position()) | 44 if (m_lineBreak == m_resolver.position()) |
45 m_lineBreak.increment(); | 45 m_lineBreak.increment(); |
46 | 46 |
47 // Sanity check our midpoints. | 47 // Sanity check our midpoints. |
48 m_lineMidpointState.checkMidpoints(m_lineBreak); | 48 m_lineMidpointState.checkMidpoints(m_lineBreak); |
49 | 49 |
50 m_trailingObjects.updateMidpointsForTrailingObjects(m_lineMidpointState, m_l
ineBreak, TrailingObjects::CollapseFirstSpace); | 50 m_trailingObjects.updateMidpointsForTrailingObjects(m_lineMidpointState, m_l
ineBreak, TrailingObjects::CollapseFirstSpace); |
51 | 51 |
52 // We might have made lineBreak an iterator that points past the end | 52 // We might have made lineBreak an iterator that points past the end |
53 // of the object. Do this adjustment to make it point to the start | 53 // of the object. Do this adjustment to make it point to the start |
54 // of the next object instead to avoid confusing the rest of the | 54 // of the next object instead to avoid confusing the rest of the |
55 // code. | 55 // code. |
56 if (m_lineBreak.offset()) { | 56 if (m_lineBreak.offset()) { |
57 // This loop enforces the invariant that line breaks should never point | 57 // This loop enforces the invariant that line breaks should never point |
58 // at an empty inline. See http://crbug.com/305904. | 58 // at an empty inline. See http://crbug.com/305904. |
59 do { | 59 do { |
60 m_lineBreak.setOffset(m_lineBreak.offset() - 1); | 60 m_lineBreak.setOffset(m_lineBreak.offset() - 1); |
61 m_lineBreak.increment(); | 61 m_lineBreak.increment(); |
62 } while (!m_lineBreak.atEnd() && isEmptyInline(m_lineBreak.lineLayoutIte
m())); | 62 } while (!m_lineBreak.atEnd() && isEmptyInline(m_lineBreak.getLineLayout
Item())); |
63 } | 63 } |
64 | 64 |
65 return m_lineBreak; | 65 return m_lineBreak; |
66 } | 66 } |
67 | 67 |
68 } // namespace blink | 68 } // namespace blink |
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