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1 /* | 1 /* |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. 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 are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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34 | 34 |
35 #include "core/frame/UseCounter.h" | 35 #include "core/frame/UseCounter.h" |
36 #include "core/layout/LayoutRubyRun.h" | 36 #include "core/layout/LayoutRubyRun.h" |
37 #include "core/rendering/style/RenderStyle.h" | 37 #include "core/rendering/style/RenderStyle.h" |
38 #include "wtf/RefPtr.h" | 38 #include "wtf/RefPtr.h" |
39 | 39 |
40 namespace blink { | 40 namespace blink { |
41 | 41 |
42 // === generic helper functions to avoid excessive code duplication === | 42 // === generic helper functions to avoid excessive code duplication === |
43 | 43 |
44 static inline bool isAnonymousRubyInlineBlock(const RenderObject* object) | 44 static inline bool isAnonymousRubyInlineBlock(const LayoutObject* object) |
45 { | 45 { |
46 ASSERT(!object | 46 ASSERT(!object |
47 || !object->parent()->isRuby() | 47 || !object->parent()->isRuby() |
48 || object->isRubyRun() | 48 || object->isRubyRun() |
49 || (object->isInline() && (object->isBeforeContent() || object->isAfterC
ontent())) | 49 || (object->isInline() && (object->isBeforeContent() || object->isAfterC
ontent())) |
50 || (object->isAnonymous() && object->isRenderBlock() && object->style()-
>display() == INLINE_BLOCK)); | 50 || (object->isAnonymous() && object->isRenderBlock() && object->style()-
>display() == INLINE_BLOCK)); |
51 | 51 |
52 return object | 52 return object |
53 && object->parent()->isRuby() | 53 && object->parent()->isRuby() |
54 && object->isRenderBlock() | 54 && object->isRenderBlock() |
55 && !object->isRubyRun(); | 55 && !object->isRubyRun(); |
56 } | 56 } |
57 | 57 |
58 static inline bool isRubyBeforeBlock(const RenderObject* object) | 58 static inline bool isRubyBeforeBlock(const LayoutObject* object) |
59 { | 59 { |
60 return isAnonymousRubyInlineBlock(object) | 60 return isAnonymousRubyInlineBlock(object) |
61 && !object->previousSibling() | 61 && !object->previousSibling() |
62 && toRenderBlock(object)->firstChild() | 62 && toRenderBlock(object)->firstChild() |
63 && toRenderBlock(object)->firstChild()->style()->styleType() == BEFORE; | 63 && toRenderBlock(object)->firstChild()->style()->styleType() == BEFORE; |
64 } | 64 } |
65 | 65 |
66 static inline bool isRubyAfterBlock(const RenderObject* object) | 66 static inline bool isRubyAfterBlock(const LayoutObject* object) |
67 { | 67 { |
68 return isAnonymousRubyInlineBlock(object) | 68 return isAnonymousRubyInlineBlock(object) |
69 && !object->nextSibling() | 69 && !object->nextSibling() |
70 && toRenderBlock(object)->firstChild() | 70 && toRenderBlock(object)->firstChild() |
71 && toRenderBlock(object)->firstChild()->style()->styleType() == AFTER; | 71 && toRenderBlock(object)->firstChild()->style()->styleType() == AFTER; |
72 } | 72 } |
73 | 73 |
74 static inline RenderBlock* rubyBeforeBlock(const RenderObject* ruby) | 74 static inline RenderBlock* rubyBeforeBlock(const LayoutObject* ruby) |
75 { | 75 { |
76 RenderObject* child = ruby->slowFirstChild(); | 76 LayoutObject* child = ruby->slowFirstChild(); |
77 return isRubyBeforeBlock(child) ? toRenderBlock(child) : 0; | 77 return isRubyBeforeBlock(child) ? toRenderBlock(child) : 0; |
78 } | 78 } |
79 | 79 |
80 static inline RenderBlock* rubyAfterBlock(const RenderObject* ruby) | 80 static inline RenderBlock* rubyAfterBlock(const LayoutObject* ruby) |
81 { | 81 { |
82 RenderObject* child = ruby->slowLastChild(); | 82 LayoutObject* child = ruby->slowLastChild(); |
83 return isRubyAfterBlock(child) ? toRenderBlock(child) : 0; | 83 return isRubyAfterBlock(child) ? toRenderBlock(child) : 0; |
84 } | 84 } |
85 | 85 |
86 static RenderBlockFlow* createAnonymousRubyInlineBlock(RenderObject* ruby) | 86 static RenderBlockFlow* createAnonymousRubyInlineBlock(LayoutObject* ruby) |
87 { | 87 { |
88 RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(
ruby->style(), INLINE_BLOCK); | 88 RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(
ruby->style(), INLINE_BLOCK); |
89 RenderBlockFlow* newBlock = RenderBlockFlow::createAnonymous(&ruby->document
()); | 89 RenderBlockFlow* newBlock = RenderBlockFlow::createAnonymous(&ruby->document
()); |
90 newBlock->setStyle(newStyle.release()); | 90 newBlock->setStyle(newStyle.release()); |
91 return newBlock; | 91 return newBlock; |
92 } | 92 } |
93 | 93 |
94 static LayoutRubyRun* lastRubyRun(const RenderObject* ruby) | 94 static LayoutRubyRun* lastRubyRun(const LayoutObject* ruby) |
95 { | 95 { |
96 RenderObject* child = ruby->slowLastChild(); | 96 LayoutObject* child = ruby->slowLastChild(); |
97 if (child && !child->isRubyRun()) | 97 if (child && !child->isRubyRun()) |
98 child = child->previousSibling(); | 98 child = child->previousSibling(); |
99 ASSERT(!child || child->isRubyRun() || child->isBeforeContent() || child ==
rubyBeforeBlock(ruby)); | 99 ASSERT(!child || child->isRubyRun() || child->isBeforeContent() || child ==
rubyBeforeBlock(ruby)); |
100 return child && child->isRubyRun() ? toLayoutRubyRun(child) : 0; | 100 return child && child->isRubyRun() ? toLayoutRubyRun(child) : 0; |
101 } | 101 } |
102 | 102 |
103 static inline LayoutRubyRun* findRubyRunParent(RenderObject* child) | 103 static inline LayoutRubyRun* findRubyRunParent(LayoutObject* child) |
104 { | 104 { |
105 while (child && !child->isRubyRun()) | 105 while (child && !child->isRubyRun()) |
106 child = child->parent(); | 106 child = child->parent(); |
107 return toLayoutRubyRun(child); | 107 return toLayoutRubyRun(child); |
108 } | 108 } |
109 | 109 |
110 // === ruby as inline object === | 110 // === ruby as inline object === |
111 | 111 |
112 LayoutRubyAsInline::LayoutRubyAsInline(Element* element) | 112 LayoutRubyAsInline::LayoutRubyAsInline(Element* element) |
113 : RenderInline(element) | 113 : RenderInline(element) |
114 { | 114 { |
115 UseCounter::count(document(), UseCounter::RenderRuby); | 115 UseCounter::count(document(), UseCounter::RenderRuby); |
116 } | 116 } |
117 | 117 |
118 LayoutRubyAsInline::~LayoutRubyAsInline() | 118 LayoutRubyAsInline::~LayoutRubyAsInline() |
119 { | 119 { |
120 } | 120 } |
121 | 121 |
122 void LayoutRubyAsInline::styleDidChange(StyleDifference diff, const RenderStyle*
oldStyle) | 122 void LayoutRubyAsInline::styleDidChange(StyleDifference diff, const RenderStyle*
oldStyle) |
123 { | 123 { |
124 RenderInline::styleDidChange(diff, oldStyle); | 124 RenderInline::styleDidChange(diff, oldStyle); |
125 propagateStyleToAnonymousChildren(); | 125 propagateStyleToAnonymousChildren(); |
126 } | 126 } |
127 | 127 |
128 void LayoutRubyAsInline::addChild(RenderObject* child, RenderObject* beforeChild
) | 128 void LayoutRubyAsInline::addChild(LayoutObject* child, LayoutObject* beforeChild
) |
129 { | 129 { |
130 // Insert :before and :after content before/after the LayoutRubyRun(s) | 130 // Insert :before and :after content before/after the LayoutRubyRun(s) |
131 if (child->isBeforeContent()) { | 131 if (child->isBeforeContent()) { |
132 if (child->isInline()) { | 132 if (child->isInline()) { |
133 // Add generated inline content normally | 133 // Add generated inline content normally |
134 RenderInline::addChild(child, firstChild()); | 134 RenderInline::addChild(child, firstChild()); |
135 } else { | 135 } else { |
136 // Wrap non-inline content with an anonymous inline-block. | 136 // Wrap non-inline content with an anonymous inline-block. |
137 RenderBlock* beforeBlock = rubyBeforeBlock(this); | 137 RenderBlock* beforeBlock = rubyBeforeBlock(this); |
138 if (!beforeBlock) { | 138 if (!beforeBlock) { |
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160 } | 160 } |
161 | 161 |
162 // If the child is a ruby run, just add it normally. | 162 // If the child is a ruby run, just add it normally. |
163 if (child->isRubyRun()) { | 163 if (child->isRubyRun()) { |
164 RenderInline::addChild(child, beforeChild); | 164 RenderInline::addChild(child, beforeChild); |
165 return; | 165 return; |
166 } | 166 } |
167 | 167 |
168 if (beforeChild && !isAfterContent(beforeChild)) { | 168 if (beforeChild && !isAfterContent(beforeChild)) { |
169 // insert child into run | 169 // insert child into run |
170 RenderObject* run = beforeChild; | 170 LayoutObject* run = beforeChild; |
171 while (run && !run->isRubyRun()) | 171 while (run && !run->isRubyRun()) |
172 run = run->parent(); | 172 run = run->parent(); |
173 if (run) { | 173 if (run) { |
174 if (beforeChild == run) | 174 if (beforeChild == run) |
175 beforeChild = toLayoutRubyRun(beforeChild)->firstChild(); | 175 beforeChild = toLayoutRubyRun(beforeChild)->firstChild(); |
176 ASSERT(!beforeChild || beforeChild->isDescendantOf(run)); | 176 ASSERT(!beforeChild || beforeChild->isDescendantOf(run)); |
177 run->addChild(child, beforeChild); | 177 run->addChild(child, beforeChild); |
178 return; | 178 return; |
179 } | 179 } |
180 ASSERT_NOT_REACHED(); // beforeChild should always have a run as parent! | 180 ASSERT_NOT_REACHED(); // beforeChild should always have a run as parent! |
181 // Emergency fallback: fall through and just append. | 181 // Emergency fallback: fall through and just append. |
182 } | 182 } |
183 | 183 |
184 // If the new child would be appended, try to add the child to the previous
run | 184 // If the new child would be appended, try to add the child to the previous
run |
185 // if possible, or create a new run otherwise. | 185 // if possible, or create a new run otherwise. |
186 // (The LayoutRubyRun object will handle the details) | 186 // (The LayoutRubyRun object will handle the details) |
187 LayoutRubyRun* lastRun = lastRubyRun(this); | 187 LayoutRubyRun* lastRun = lastRubyRun(this); |
188 if (!lastRun || lastRun->hasRubyText()) { | 188 if (!lastRun || lastRun->hasRubyText()) { |
189 lastRun = LayoutRubyRun::staticCreateRubyRun(this); | 189 lastRun = LayoutRubyRun::staticCreateRubyRun(this); |
190 RenderInline::addChild(lastRun, beforeChild); | 190 RenderInline::addChild(lastRun, beforeChild); |
191 } | 191 } |
192 lastRun->addChild(child); | 192 lastRun->addChild(child); |
193 } | 193 } |
194 | 194 |
195 void LayoutRubyAsInline::removeChild(RenderObject* child) | 195 void LayoutRubyAsInline::removeChild(LayoutObject* child) |
196 { | 196 { |
197 // If the child's parent is *this (must be a ruby run or generated content o
r anonymous block), | 197 // If the child's parent is *this (must be a ruby run or generated content o
r anonymous block), |
198 // just use the normal remove method. | 198 // just use the normal remove method. |
199 if (child->parent() == this) { | 199 if (child->parent() == this) { |
200 ASSERT(child->isRubyRun() || child->isBeforeContent() || child->isAfterC
ontent() || isAnonymousRubyInlineBlock(child)); | 200 ASSERT(child->isRubyRun() || child->isBeforeContent() || child->isAfterC
ontent() || isAnonymousRubyInlineBlock(child)); |
201 RenderInline::removeChild(child); | 201 RenderInline::removeChild(child); |
202 return; | 202 return; |
203 } | 203 } |
204 // If the child's parent is an anoymous block (must be generated :before/:af
ter content) | 204 // If the child's parent is an anoymous block (must be generated :before/:af
ter content) |
205 // just use the block's remove method. | 205 // just use the block's remove method. |
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227 LayoutRubyAsBlock::~LayoutRubyAsBlock() | 227 LayoutRubyAsBlock::~LayoutRubyAsBlock() |
228 { | 228 { |
229 } | 229 } |
230 | 230 |
231 void LayoutRubyAsBlock::styleDidChange(StyleDifference diff, const RenderStyle*
oldStyle) | 231 void LayoutRubyAsBlock::styleDidChange(StyleDifference diff, const RenderStyle*
oldStyle) |
232 { | 232 { |
233 RenderBlockFlow::styleDidChange(diff, oldStyle); | 233 RenderBlockFlow::styleDidChange(diff, oldStyle); |
234 propagateStyleToAnonymousChildren(); | 234 propagateStyleToAnonymousChildren(); |
235 } | 235 } |
236 | 236 |
237 void LayoutRubyAsBlock::addChild(RenderObject* child, RenderObject* beforeChild) | 237 void LayoutRubyAsBlock::addChild(LayoutObject* child, LayoutObject* beforeChild) |
238 { | 238 { |
239 // Insert :before and :after content before/after the LayoutRubyRun(s) | 239 // Insert :before and :after content before/after the LayoutRubyRun(s) |
240 if (child->isBeforeContent()) { | 240 if (child->isBeforeContent()) { |
241 if (child->isInline()) { | 241 if (child->isInline()) { |
242 // Add generated inline content normally | 242 // Add generated inline content normally |
243 RenderBlockFlow::addChild(child, firstChild()); | 243 RenderBlockFlow::addChild(child, firstChild()); |
244 } else { | 244 } else { |
245 // Wrap non-inline content with an anonymous inline-block. | 245 // Wrap non-inline content with an anonymous inline-block. |
246 RenderBlock* beforeBlock = rubyBeforeBlock(this); | 246 RenderBlock* beforeBlock = rubyBeforeBlock(this); |
247 if (!beforeBlock) { | 247 if (!beforeBlock) { |
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269 } | 269 } |
270 | 270 |
271 // If the child is a ruby run, just add it normally. | 271 // If the child is a ruby run, just add it normally. |
272 if (child->isRubyRun()) { | 272 if (child->isRubyRun()) { |
273 RenderBlockFlow::addChild(child, beforeChild); | 273 RenderBlockFlow::addChild(child, beforeChild); |
274 return; | 274 return; |
275 } | 275 } |
276 | 276 |
277 if (beforeChild && !isAfterContent(beforeChild)) { | 277 if (beforeChild && !isAfterContent(beforeChild)) { |
278 // insert child into run | 278 // insert child into run |
279 RenderObject* run = beforeChild; | 279 LayoutObject* run = beforeChild; |
280 while (run && !run->isRubyRun()) | 280 while (run && !run->isRubyRun()) |
281 run = run->parent(); | 281 run = run->parent(); |
282 if (run) { | 282 if (run) { |
283 if (beforeChild == run) | 283 if (beforeChild == run) |
284 beforeChild = toLayoutRubyRun(beforeChild)->firstChild(); | 284 beforeChild = toLayoutRubyRun(beforeChild)->firstChild(); |
285 ASSERT(!beforeChild || beforeChild->isDescendantOf(run)); | 285 ASSERT(!beforeChild || beforeChild->isDescendantOf(run)); |
286 run->addChild(child, beforeChild); | 286 run->addChild(child, beforeChild); |
287 return; | 287 return; |
288 } | 288 } |
289 ASSERT_NOT_REACHED(); // beforeChild should always have a run as parent! | 289 ASSERT_NOT_REACHED(); // beforeChild should always have a run as parent! |
290 // Emergency fallback: fall through and just append. | 290 // Emergency fallback: fall through and just append. |
291 } | 291 } |
292 | 292 |
293 // If the new child would be appended, try to add the child to the previous
run | 293 // If the new child would be appended, try to add the child to the previous
run |
294 // if possible, or create a new run otherwise. | 294 // if possible, or create a new run otherwise. |
295 // (The LayoutRubyRun object will handle the details) | 295 // (The LayoutRubyRun object will handle the details) |
296 LayoutRubyRun* lastRun = lastRubyRun(this); | 296 LayoutRubyRun* lastRun = lastRubyRun(this); |
297 if (!lastRun || lastRun->hasRubyText()) { | 297 if (!lastRun || lastRun->hasRubyText()) { |
298 lastRun = LayoutRubyRun::staticCreateRubyRun(this); | 298 lastRun = LayoutRubyRun::staticCreateRubyRun(this); |
299 RenderBlockFlow::addChild(lastRun, beforeChild); | 299 RenderBlockFlow::addChild(lastRun, beforeChild); |
300 } | 300 } |
301 lastRun->addChild(child); | 301 lastRun->addChild(child); |
302 } | 302 } |
303 | 303 |
304 void LayoutRubyAsBlock::removeChild(RenderObject* child) | 304 void LayoutRubyAsBlock::removeChild(LayoutObject* child) |
305 { | 305 { |
306 // If the child's parent is *this (must be a ruby run or generated content o
r anonymous block), | 306 // If the child's parent is *this (must be a ruby run or generated content o
r anonymous block), |
307 // just use the normal remove method. | 307 // just use the normal remove method. |
308 if (child->parent() == this) { | 308 if (child->parent() == this) { |
309 ASSERT(child->isRubyRun() || child->isBeforeContent() || child->isAfterC
ontent() || isAnonymousRubyInlineBlock(child)); | 309 ASSERT(child->isRubyRun() || child->isBeforeContent() || child->isAfterC
ontent() || isAnonymousRubyInlineBlock(child)); |
310 RenderBlockFlow::removeChild(child); | 310 RenderBlockFlow::removeChild(child); |
311 return; | 311 return; |
312 } | 312 } |
313 // If the child's parent is an anoymous block (must be generated :before/:af
ter content) | 313 // If the child's parent is an anoymous block (must be generated :before/:af
ter content) |
314 // just use the block's remove method. | 314 // just use the block's remove method. |
315 if (isAnonymousRubyInlineBlock(child->parent())) { | 315 if (isAnonymousRubyInlineBlock(child->parent())) { |
316 ASSERT(child->isBeforeContent() || child->isAfterContent()); | 316 ASSERT(child->isBeforeContent() || child->isAfterContent()); |
317 child->parent()->removeChild(child); | 317 child->parent()->removeChild(child); |
318 removeChild(child->parent()); | 318 removeChild(child->parent()); |
319 return; | 319 return; |
320 } | 320 } |
321 | 321 |
322 // Otherwise find the containing run and remove it from there. | 322 // Otherwise find the containing run and remove it from there. |
323 LayoutRubyRun* run = findRubyRunParent(child); | 323 LayoutRubyRun* run = findRubyRunParent(child); |
324 ASSERT(run); | 324 ASSERT(run); |
325 run->removeChild(child); | 325 run->removeChild(child); |
326 } | 326 } |
327 | 327 |
328 } // namespace blink | 328 } // namespace blink |
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