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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_line_builder.h" | 5 #include "core/layout/ng/ng_line_builder.h" |
6 | 6 |
7 #include "core/layout/BidiRun.h" | 7 #include "core/layout/BidiRun.h" |
8 #include "core/layout/LayoutBlockFlow.h" | 8 #include "core/layout/LayoutBlockFlow.h" |
9 #include "core/layout/line/LineInfo.h" | 9 #include "core/layout/line/LineInfo.h" |
10 #include "core/layout/line/RootInlineBox.h" | 10 #include "core/layout/line/RootInlineBox.h" |
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29 | 29 |
30 namespace blink { | 30 namespace blink { |
31 namespace { | 31 namespace { |
32 | 32 |
33 RefPtr<NGConstraintSpace> CreateConstraintSpaceForFloat( | 33 RefPtr<NGConstraintSpace> CreateConstraintSpaceForFloat( |
34 const ComputedStyle& style, | 34 const ComputedStyle& style, |
35 const NGConstraintSpace& parent_space, | 35 const NGConstraintSpace& parent_space, |
36 NGConstraintSpaceBuilder* space_builder) { | 36 NGConstraintSpaceBuilder* space_builder) { |
37 DCHECK(space_builder) << "space_builder cannot be null here"; | 37 DCHECK(space_builder) << "space_builder cannot be null here"; |
38 bool is_new_bfc = | 38 bool is_new_bfc = |
39 IsNewFormattingContextForInFlowBlockLevelChild(parent_space, style); | 39 IsNewFormattingContextForBlockLevelChild(parent_space, style); |
40 return space_builder->SetIsNewFormattingContext(is_new_bfc) | 40 return space_builder->SetIsNewFormattingContext(is_new_bfc) |
41 .SetTextDirection(style.direction()) | 41 .SetTextDirection(style.direction()) |
42 .SetIsShrinkToFit(ShouldShrinkToFit(parent_space, style)) | 42 .SetIsShrinkToFit(ShouldShrinkToFit(parent_space, style)) |
43 .ToConstraintSpace(FromPlatformWritingMode(style.getWritingMode())); | 43 .ToConstraintSpace(FromPlatformWritingMode(style.getWritingMode())); |
44 } | 44 } |
45 | 45 |
46 NGLogicalOffset GetOriginPointForFloats(const NGConstraintSpace& space, | 46 NGLogicalOffset GetOriginPointForFloats(const NGConstraintSpace& space, |
47 LayoutUnit content_size) { | 47 LayoutUnit content_size) { |
48 NGLogicalOffset origin_point = space.BfcOffset(); | 48 NGLogicalOffset origin_point = space.BfcOffset(); |
49 origin_point.block_offset += content_size; | 49 origin_point.block_offset += content_size; |
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320 // fragmentation line. | 320 // fragmentation line. |
321 // diff writing mode - get the inline size from performing layout. | 321 // diff writing mode - get the inline size from performing layout. |
322 RefPtr<NGLayoutResult> layout_result = node->Layout(float_space.get()); | 322 RefPtr<NGLayoutResult> layout_result = node->Layout(float_space.get()); |
323 | 323 |
324 NGBoxFragment float_fragment( | 324 NGBoxFragment float_fragment( |
325 float_space->WritingMode(), | 325 float_space->WritingMode(), |
326 toNGPhysicalBoxFragment(layout_result->PhysicalFragment().get())); | 326 toNGPhysicalBoxFragment(layout_result->PhysicalFragment().get())); |
327 | 327 |
328 RefPtr<NGFloatingObject> floating_object = NGFloatingObject::Create( | 328 RefPtr<NGFloatingObject> floating_object = NGFloatingObject::Create( |
329 float_space.get(), constraint_space_, node->Style(), NGBoxStrut(), | 329 float_space.get(), constraint_space_, node->Style(), NGBoxStrut(), |
330 layout_result->PhysicalFragment().get()); | 330 current_opportunity_.size, layout_result->PhysicalFragment().get()); |
331 | 331 |
332 bool float_does_not_fit = end_position + float_fragment.InlineSize() > | 332 bool float_does_not_fit = end_position + float_fragment.InlineSize() > |
333 current_opportunity_.InlineSize(); | 333 current_opportunity_.InlineSize(); |
334 // Check if we already have a pending float. That's because a float cannot be | 334 // Check if we already have a pending float. That's because a float cannot be |
335 // higher than any block or floated box generated before. | 335 // higher than any block or floated box generated before. |
336 if (!container_builder_.UnpositionedFloats().isEmpty() || | 336 if (!container_builder_.UnpositionedFloats().isEmpty() || |
337 float_does_not_fit) { | 337 float_does_not_fit) { |
338 container_builder_.AddUnpositionedFloat(floating_object); | 338 container_builder_.AddUnpositionedFloat(floating_object); |
339 } else { | 339 } else { |
340 NGLogicalOffset origin_point = | 340 NGLogicalOffset origin_point = |
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597 root_line_box->setLineTopBottomPositions( | 597 root_line_box->setLineTopBottomPositions( |
598 baseline - LayoutUnit(metrics.ascent), | 598 baseline - LayoutUnit(metrics.ascent), |
599 baseline + LayoutUnit(metrics.descent), line_top_with_leading, | 599 baseline + LayoutUnit(metrics.descent), line_top_with_leading, |
600 baseline + LayoutUnit(metrics.descent_and_leading)); | 600 baseline + LayoutUnit(metrics.descent_and_leading)); |
601 | 601 |
602 bidi_runs.deleteRuns(); | 602 bidi_runs.deleteRuns(); |
603 fragments_for_bidi_runs.clear(); | 603 fragments_for_bidi_runs.clear(); |
604 } | 604 } |
605 } | 605 } |
606 } // namespace blink | 606 } // namespace blink |
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