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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/layout/ng/ng_inline_node.h" | 5 #include "core/layout/ng/ng_inline_node.h" |
6 | 6 |
7 #include "core/layout/LayoutBlockFlow.h" | 7 #include "core/layout/LayoutBlockFlow.h" |
8 #include "core/layout/LayoutObject.h" | 8 #include "core/layout/LayoutObject.h" |
9 #include "core/layout/LayoutText.h" | 9 #include "core/layout/LayoutText.h" |
10 #include "core/layout/ng/ng_bidi_paragraph.h" | 10 #include "core/layout/ng/ng_bidi_paragraph.h" |
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256 // Skip non-text items; e.g., bidi controls, atomic inlines, out-of-flow | 256 // Skip non-text items; e.g., bidi controls, atomic inlines, out-of-flow |
257 // objects. | 257 // objects. |
258 if (!item.style_) | 258 if (!item.style_) |
259 continue; | 259 continue; |
260 | 260 |
261 item.shape_result_ = shaper.shape(&item.Style()->font(), item.Direction(), | 261 item.shape_result_ = shaper.shape(&item.Style()->font(), item.Direction(), |
262 item.StartOffset(), item.EndOffset()); | 262 item.StartOffset(), item.EndOffset()); |
263 } | 263 } |
264 } | 264 } |
265 | 265 |
266 RefPtr<NGLayoutResult> NGInlineNode::Layout(NGConstraintSpace*, NGBreakToken*) { | |
267 ASSERT_NOT_REACHED(); | |
268 return nullptr; | |
269 } | |
270 | |
271 RefPtr<NGLayoutResult> NGInlineNode::Layout(NGConstraintSpace* constraint_space, | 266 RefPtr<NGLayoutResult> NGInlineNode::Layout(NGConstraintSpace* constraint_space, |
272 NGFragmentBuilder* parent_builder, | 267 NGBreakToken*) { |
273 NGBreakToken* break_token) { | |
274 // TODO(kojii): Invalidate PrepareLayout() more efficiently. | 268 // TODO(kojii): Invalidate PrepareLayout() more efficiently. |
275 InvalidatePrepareLayout(); | 269 InvalidatePrepareLayout(); |
276 NGLineBuilder line_builder(this, constraint_space, parent_builder); | 270 NGLineBuilder line_builder(this, constraint_space); |
277 Layout(&line_builder); | 271 Layout(&line_builder); |
278 RefPtr<NGLayoutResult> result = line_builder.CreateFragments(); | 272 RefPtr<NGLayoutResult> result = line_builder.CreateFragments(); |
279 line_builder.CopyFragmentDataToLayoutBlockFlow(); | 273 line_builder.CopyFragmentDataToLayoutBlockFlow(); |
280 return result; | 274 return result; |
281 } | 275 } |
282 | 276 |
283 void NGInlineNode::Layout(NGLineBuilder* line_builder) { | 277 void NGInlineNode::Layout(NGLineBuilder* line_builder) { |
284 if (!IsPrepareLayoutFinished()) | 278 if (!IsPrepareLayoutFinished()) |
285 PrepareLayout(); | 279 PrepareLayout(); |
286 | 280 |
287 if (text_content_.isEmpty()) | 281 if (text_content_.isEmpty()) |
288 return; | 282 return; |
289 | 283 |
290 NGTextLayoutAlgorithm(this).LayoutInline(line_builder); | 284 NGTextLayoutAlgorithm(this).LayoutInline(line_builder); |
291 } | 285 } |
292 | 286 |
293 MinMaxContentSize NGInlineNode::ComputeMinMaxContentSize() { | 287 MinMaxContentSize NGInlineNode::ComputeMinMaxContentSize() { |
294 // Compute the max of inline sizes of all line boxes with 0 available inline | 288 // Compute the max of inline sizes of all line boxes with 0 available inline |
295 // size. This gives the min-content, the width where lines wrap at every break | 289 // size. This gives the min-content, the width where lines wrap at every break |
296 // opportunity. | 290 // opportunity. |
297 NGWritingMode writing_mode = | 291 NGWritingMode writing_mode = |
298 FromPlatformWritingMode(BlockStyle()->getWritingMode()); | 292 FromPlatformWritingMode(BlockStyle()->getWritingMode()); |
299 RefPtr<NGConstraintSpace> constraint_space = | 293 RefPtr<NGConstraintSpace> constraint_space = |
300 NGConstraintSpaceBuilder(writing_mode) | 294 NGConstraintSpaceBuilder(writing_mode) |
301 .SetTextDirection(BlockStyle()->direction()) | 295 .SetTextDirection(BlockStyle()->direction()) |
302 .SetAvailableSize({LayoutUnit(), NGSizeIndefinite}) | 296 .SetAvailableSize({LayoutUnit(), NGSizeIndefinite}) |
303 .ToConstraintSpace(writing_mode); | 297 .ToConstraintSpace(writing_mode); |
304 NGLineBuilder line_builder(this, constraint_space.get(), nullptr); | 298 NGLineBuilder line_builder(this, constraint_space.get()); |
305 Layout(&line_builder); | 299 Layout(&line_builder); |
306 MinMaxContentSize sizes; | 300 MinMaxContentSize sizes; |
307 sizes.min_content = line_builder.MaxInlineSize(); | 301 sizes.min_content = line_builder.MaxInlineSize(); |
308 | 302 |
309 // max-content is the width without any line wrapping. | 303 // max-content is the width without any line wrapping. |
310 // TODO(kojii): Implement hard breaks (<br> etc.) to break. | 304 // TODO(kojii): Implement hard breaks (<br> etc.) to break. |
311 for (const auto& item : items_) | 305 for (const auto& item : items_) |
312 sizes.max_content += line_builder.InlineSize(item); | 306 sizes.max_content += line_builder.InlineSize(item); |
313 | 307 |
314 return sizes; | 308 return sizes; |
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368 Vector<NGLayoutInlineItem>* items, | 362 Vector<NGLayoutInlineItem>* items, |
369 unsigned start_index, | 363 unsigned start_index, |
370 unsigned end_index) | 364 unsigned end_index) |
371 : start_item_(&(*items)[start_index]), | 365 : start_item_(&(*items)[start_index]), |
372 size_(end_index - start_index), | 366 size_(end_index - start_index), |
373 start_index_(start_index) { | 367 start_index_(start_index) { |
374 RELEASE_ASSERT(start_index <= end_index && end_index <= items->size()); | 368 RELEASE_ASSERT(start_index <= end_index && end_index <= items->size()); |
375 } | 369 } |
376 | 370 |
377 } // namespace blink | 371 } // namespace blink |
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