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Side by Side Diff: third_party/WebKit/Source/core/layout/line/LineWidth.cpp

Issue 1583783002: Use IndentTextOrNot instead of a bool (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@568851-2
Patch Set: Update Created 4 years, 11 months ago
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1 /* 1 /*
2 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved. 2 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 7 *
8 * 1. Redistributions of source code must retain the above 8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following 9 * copyright notice, this list of conditions and the following
10 * disclaimer. 10 * disclaimer.
(...skipping 16 matching lines...) Expand all
27 * OF THE POSSIBILITY OF SUCH DAMAGE. 27 * OF THE POSSIBILITY OF SUCH DAMAGE.
28 */ 28 */
29 29
30 #include "core/layout/line/LineWidth.h" 30 #include "core/layout/line/LineWidth.h"
31 31
32 #include "core/layout/api/LineLayoutRubyRun.h" 32 #include "core/layout/api/LineLayoutRubyRun.h"
33 #include "core/layout/shapes/ShapeOutsideInfo.h" 33 #include "core/layout/shapes/ShapeOutsideInfo.h"
34 34
35 namespace blink { 35 namespace blink {
36 36
37 LineWidth::LineWidth(LineLayoutBlockFlow block, bool isFirstLine, IndentTextOrNo t shouldIndentText) 37 LineWidth::LineWidth(LineLayoutBlockFlow block, bool isFirstLine, IndentTextOrNo t indentText)
38 : m_block(block) 38 : m_block(block)
39 , m_uncommittedWidth(0) 39 , m_uncommittedWidth(0)
40 , m_committedWidth(0) 40 , m_committedWidth(0)
41 , m_overhangWidth(0) 41 , m_overhangWidth(0)
42 , m_trailingWhitespaceWidth(0) 42 , m_trailingWhitespaceWidth(0)
43 , m_left(0) 43 , m_left(0)
44 , m_right(0) 44 , m_right(0)
45 , m_availableWidth(0) 45 , m_availableWidth(0)
46 , m_isFirstLine(isFirstLine) 46 , m_isFirstLine(isFirstLine)
47 , m_shouldIndentText(shouldIndentText) 47 , m_indentText(indentText)
48 { 48 {
49 updateAvailableWidth(); 49 updateAvailableWidth();
50 } 50 }
51 51
52 void LineWidth::updateAvailableWidth(LayoutUnit replacedHeight) 52 void LineWidth::updateAvailableWidth(LayoutUnit replacedHeight)
53 { 53 {
54 LayoutUnit height = m_block.logicalHeight(); 54 LayoutUnit height = m_block.logicalHeight();
55 LayoutUnit logicalHeight = m_block.minLineHeightForReplacedObject(m_isFirstL ine, replacedHeight); 55 LayoutUnit logicalHeight = m_block.minLineHeightForReplacedObject(m_isFirstL ine, replacedHeight);
56 m_left = m_block.logicalLeftOffsetForLine(height, shouldIndentText(), logica lHeight).toFloat(); 56 m_left = m_block.logicalLeftOffsetForLine(height, indentText(), logicalHeigh t).toFloat();
57 m_right = m_block.logicalRightOffsetForLine(height, shouldIndentText(), logi calHeight).toFloat(); 57 m_right = m_block.logicalRightOffsetForLine(height, indentText(), logicalHei ght).toFloat();
58 58
59 computeAvailableWidthFromLeftAndRight(); 59 computeAvailableWidthFromLeftAndRight();
60 } 60 }
61 61
62 void LineWidth::shrinkAvailableWidthForNewFloatIfNeeded(const FloatingObject& ne wFloat) 62 void LineWidth::shrinkAvailableWidthForNewFloatIfNeeded(const FloatingObject& ne wFloat)
63 { 63 {
64 LayoutUnit height = m_block.logicalHeight(); 64 LayoutUnit height = m_block.logicalHeight();
65 if (height < m_block.logicalTopForFloat(newFloat) || height >= m_block.logic alBottomForFloat(newFloat)) 65 if (height < m_block.logicalTopForFloat(newFloat) || height >= m_block.logic alBottomForFloat(newFloat))
66 return; 66 return;
67 67
68 ShapeOutsideDeltas shapeDeltas; 68 ShapeOutsideDeltas shapeDeltas;
69 if (ShapeOutsideInfo* shapeOutsideInfo = newFloat.layoutObject()->shapeOutsi deInfo()) { 69 if (ShapeOutsideInfo* shapeOutsideInfo = newFloat.layoutObject()->shapeOutsi deInfo()) {
70 LayoutUnit lineHeight = m_block.lineHeight(m_isFirstLine, m_block.isHori zontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes ); 70 LayoutUnit lineHeight = m_block.lineHeight(m_isFirstLine, m_block.isHori zontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes );
71 shapeDeltas = shapeOutsideInfo->computeDeltasForContainingBlockLine(m_bl ock, newFloat, m_block.logicalHeight(), lineHeight); 71 shapeDeltas = shapeOutsideInfo->computeDeltasForContainingBlockLine(m_bl ock, newFloat, m_block.logicalHeight(), lineHeight);
72 } 72 }
73 73
74 if (newFloat.type() == FloatingObject::FloatLeft) { 74 if (newFloat.type() == FloatingObject::FloatLeft) {
75 float newLeft = m_block.logicalRightForFloat(newFloat).toFloat(); 75 float newLeft = m_block.logicalRightForFloat(newFloat).toFloat();
76 if (shapeDeltas.isValid()) { 76 if (shapeDeltas.isValid()) {
77 if (shapeDeltas.lineOverlapsShape()) 77 if (shapeDeltas.lineOverlapsShape())
78 newLeft += shapeDeltas.rightMarginBoxDelta(); 78 newLeft += shapeDeltas.rightMarginBoxDelta();
79 else // Per the CSS Shapes spec, If the line doesn't overlap the sha pe, then ignore this shape for this line. 79 else // Per the CSS Shapes spec, If the line doesn't overlap the sha pe, then ignore this shape for this line.
80 newLeft = m_left; 80 newLeft = m_left;
81 } 81 }
82 if (shouldIndentText() && m_block.style()->isLeftToRightDirection()) 82 if (indentText() == IndentText && m_block.style()->isLeftToRightDirectio n())
83 newLeft += floorToInt(m_block.textIndentOffset()); 83 newLeft += floorToInt(m_block.textIndentOffset());
84 m_left = std::max<float>(m_left, newLeft); 84 m_left = std::max<float>(m_left, newLeft);
85 } else { 85 } else {
86 float newRight = m_block.logicalLeftForFloat(newFloat).toFloat(); 86 float newRight = m_block.logicalLeftForFloat(newFloat).toFloat();
87 if (shapeDeltas.isValid()) { 87 if (shapeDeltas.isValid()) {
88 if (shapeDeltas.lineOverlapsShape()) 88 if (shapeDeltas.lineOverlapsShape())
89 newRight += shapeDeltas.leftMarginBoxDelta(); 89 newRight += shapeDeltas.leftMarginBoxDelta();
90 else // Per the CSS Shapes spec, If the line doesn't overlap the sha pe, then ignore this shape for this line. 90 else // Per the CSS Shapes spec, If the line doesn't overlap the sha pe, then ignore this shape for this line.
91 newRight = m_right; 91 newRight = m_right;
92 } 92 }
93 if (shouldIndentText() && !m_block.style()->isLeftToRightDirection()) 93 if (indentText() == IndentText && !m_block.style()->isLeftToRightDirecti on())
94 newRight -= floorToInt(m_block.textIndentOffset()); 94 newRight -= floorToInt(m_block.textIndentOffset());
95 m_right = std::min<float>(m_right, newRight); 95 m_right = std::min<float>(m_right, newRight);
96 } 96 }
97 97
98 computeAvailableWidthFromLeftAndRight(); 98 computeAvailableWidthFromLeftAndRight();
99 } 99 }
100 100
101 void LineWidth::commit() 101 void LineWidth::commit()
102 { 102 {
103 m_committedWidth += m_uncommittedWidth; 103 m_committedWidth += m_uncommittedWidth;
104 m_uncommittedWidth = 0; 104 m_uncommittedWidth = 0;
105 } 105 }
106 106
107 void LineWidth::applyOverhang(LineLayoutRubyRun rubyRun, LineLayoutItem startLay outItem, LineLayoutItem endLayoutItem) 107 void LineWidth::applyOverhang(LineLayoutRubyRun rubyRun, LineLayoutItem startLay outItem, LineLayoutItem endLayoutItem)
108 { 108 {
109 int startOverhang; 109 int startOverhang;
110 int endOverhang; 110 int endOverhang;
111 rubyRun.getOverhang(m_isFirstLine, startLayoutItem, endLayoutItem, startOver hang, endOverhang); 111 rubyRun.getOverhang(m_isFirstLine, startLayoutItem, endLayoutItem, startOver hang, endOverhang);
112 112
113 startOverhang = std::min<int>(startOverhang, m_committedWidth); 113 startOverhang = std::min<int>(startOverhang, m_committedWidth);
114 m_availableWidth += startOverhang; 114 m_availableWidth += startOverhang;
115 115
116 endOverhang = std::max(std::min<int>(endOverhang, m_availableWidth - current Width()), 0); 116 endOverhang = std::max(std::min<int>(endOverhang, m_availableWidth - current Width()), 0);
117 m_availableWidth += endOverhang; 117 m_availableWidth += endOverhang;
118 m_overhangWidth += startOverhang + endOverhang; 118 m_overhangWidth += startOverhang + endOverhang;
119 } 119 }
120 120
121 inline static float availableWidthAtOffset(LineLayoutBlockFlow block, const Layo utUnit& offset, bool shouldIndentText, float& newLineLeft, 121 inline static float availableWidthAtOffset(LineLayoutBlockFlow block, const Layo utUnit& offset, IndentTextOrNot indentText, float& newLineLeft,
122 float& newLineRight, const LayoutUnit& lineHeight = 0) 122 float& newLineRight, const LayoutUnit& lineHeight = 0)
123 { 123 {
124 newLineLeft = block.logicalLeftOffsetForLine(offset, shouldIndentText, lineH eight).toFloat(); 124 newLineLeft = block.logicalLeftOffsetForLine(offset, indentText, lineHeight) .toFloat();
125 newLineRight = block.logicalRightOffsetForLine(offset, shouldIndentText, lin eHeight).toFloat(); 125 newLineRight = block.logicalRightOffsetForLine(offset, indentText, lineHeigh t).toFloat();
126 return std::max(0.0f, newLineRight - newLineLeft); 126 return std::max(0.0f, newLineRight - newLineLeft);
127 } 127 }
128 128
129 void LineWidth::updateLineDimension(LayoutUnit newLineTop, LayoutUnit newLineWid th, const float& newLineLeft, const float& newLineRight) 129 void LineWidth::updateLineDimension(LayoutUnit newLineTop, LayoutUnit newLineWid th, const float& newLineLeft, const float& newLineRight)
130 { 130 {
131 if (newLineWidth <= m_availableWidth) 131 if (newLineWidth <= m_availableWidth)
132 return; 132 return;
133 133
134 m_block.setLogicalHeight(newLineTop); 134 m_block.setLogicalHeight(newLineTop);
135 m_availableWidth = newLineWidth + m_overhangWidth; 135 m_availableWidth = newLineWidth + m_overhangWidth;
136 m_left = newLineLeft; 136 m_left = newLineLeft;
137 m_right = newLineRight; 137 m_right = newLineRight;
138 } 138 }
139 139
140 void LineWidth::wrapNextToShapeOutside(bool isFirstLine) 140 void LineWidth::wrapNextToShapeOutside(bool isFirstLine)
141 { 141 {
142 LayoutUnit lineHeight = m_block.lineHeight(isFirstLine, m_block.isHorizontal WritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes); 142 LayoutUnit lineHeight = m_block.lineHeight(isFirstLine, m_block.isHorizontal WritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes);
143 LayoutUnit lineLogicalTop = m_block.logicalHeight(); 143 LayoutUnit lineLogicalTop = m_block.logicalHeight();
144 LayoutUnit newLineTop = lineLogicalTop; 144 LayoutUnit newLineTop = lineLogicalTop;
145 LayoutUnit floatLogicalBottom = m_block.nextFloatLogicalBottomBelow(lineLogi calTop); 145 LayoutUnit floatLogicalBottom = m_block.nextFloatLogicalBottomBelow(lineLogi calTop);
146 146
147 float newLineWidth; 147 float newLineWidth;
148 float newLineLeft = m_left; 148 float newLineLeft = m_left;
149 float newLineRight = m_right; 149 float newLineRight = m_right;
150 while (true) { 150 while (true) {
151 newLineWidth = availableWidthAtOffset(m_block, newLineTop, shouldIndentT ext(), newLineLeft, newLineRight, lineHeight); 151 newLineWidth = availableWidthAtOffset(m_block, newLineTop, indentText(), newLineLeft, newLineRight, lineHeight);
152 if (newLineWidth >= m_uncommittedWidth) 152 if (newLineWidth >= m_uncommittedWidth)
153 break; 153 break;
154 154
155 if (newLineTop >= floatLogicalBottom) 155 if (newLineTop >= floatLogicalBottom)
156 break; 156 break;
157 157
158 newLineTop++; 158 newLineTop++;
159 } 159 }
160 updateLineDimension(newLineTop, newLineWidth, newLineLeft, newLineRight); 160 updateLineDimension(newLineTop, newLineWidth, newLineLeft, newLineRight);
161 } 161 }
(...skipping 12 matching lines...) Expand all
174 174
175 FloatingObject* lastFloatFromPreviousLine = m_block.lastFloatFromPreviousLin e(); 175 FloatingObject* lastFloatFromPreviousLine = m_block.lastFloatFromPreviousLin e();
176 if (lastFloatFromPreviousLine && lastFloatFromPreviousLine->layoutObject ()->shapeOutsideInfo()) 176 if (lastFloatFromPreviousLine && lastFloatFromPreviousLine->layoutObject ()->shapeOutsideInfo())
177 return wrapNextToShapeOutside(isFirstLine); 177 return wrapNextToShapeOutside(isFirstLine);
178 178
179 while (true) { 179 while (true) {
180 floatLogicalBottom = m_block.nextFloatLogicalBottomBelow(lastFloatLogica lBottom, ShapeOutsideFloatShapeOffset); 180 floatLogicalBottom = m_block.nextFloatLogicalBottomBelow(lastFloatLogica lBottom, ShapeOutsideFloatShapeOffset);
181 if (floatLogicalBottom <= lastFloatLogicalBottom) 181 if (floatLogicalBottom <= lastFloatLogicalBottom)
182 break; 182 break;
183 183
184 newLineWidth = availableWidthAtOffset(m_block, floatLogicalBottom, shoul dIndentText(), newLineLeft, newLineRight); 184 newLineWidth = availableWidthAtOffset(m_block, floatLogicalBottom, inden tText(), newLineLeft, newLineRight);
185 lastFloatLogicalBottom = floatLogicalBottom; 185 lastFloatLogicalBottom = floatLogicalBottom;
186 186
187 if (newLineWidth >= m_uncommittedWidth) 187 if (newLineWidth >= m_uncommittedWidth)
188 break; 188 break;
189 } 189 }
190 updateLineDimension(lastFloatLogicalBottom, newLineWidth, newLineLeft, newLi neRight); 190 updateLineDimension(lastFloatLogicalBottom, newLineWidth, newLineLeft, newLi neRight);
191 } 191 }
192 192
193 void LineWidth::computeAvailableWidthFromLeftAndRight() 193 void LineWidth::computeAvailableWidthFromLeftAndRight()
194 { 194 {
195 m_availableWidth = max(0.0f, m_right - m_left) + m_overhangWidth; 195 m_availableWidth = max(0.0f, m_right - m_left) + m_overhangWidth;
196 } 196 }
197 197
198 } 198 }
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