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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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319 // fragmentation line. | 319 // fragmentation line. |
320 // diff writing mode - get the inline size from performing layout. | 320 // diff writing mode - get the inline size from performing layout. |
321 RefPtr<NGLayoutResult> layout_result = node->Layout(float_space.get()); | 321 RefPtr<NGLayoutResult> layout_result = node->Layout(float_space.get()); |
322 | 322 |
323 NGBoxFragment float_fragment( | 323 NGBoxFragment float_fragment( |
324 float_space->WritingMode(), | 324 float_space->WritingMode(), |
325 toNGPhysicalBoxFragment(layout_result->PhysicalFragment().get())); | 325 toNGPhysicalBoxFragment(layout_result->PhysicalFragment().get())); |
326 | 326 |
327 RefPtr<NGFloatingObject> floating_object = NGFloatingObject::Create( | 327 RefPtr<NGFloatingObject> floating_object = NGFloatingObject::Create( |
328 float_space.get(), constraint_space_, node->Style(), NGBoxStrut(), | 328 float_space.get(), constraint_space_, node->Style(), NGBoxStrut(), |
329 layout_result->PhysicalFragment().get()); | 329 current_opportunity_.size, layout_result->PhysicalFragment().get()); |
330 | 330 |
331 bool float_does_not_fit = end_position + float_fragment.InlineSize() > | 331 bool float_does_not_fit = end_position + float_fragment.InlineSize() > |
332 current_opportunity_.InlineSize(); | 332 current_opportunity_.InlineSize(); |
333 // Check if we already have a pending float. That's because a float cannot be | 333 // Check if we already have a pending float. That's because a float cannot be |
334 // higher than any block or floated box generated before. | 334 // higher than any block or floated box generated before. |
335 if (!container_builder_.UnpositionedFloats().isEmpty() || | 335 if (!container_builder_.UnpositionedFloats().isEmpty() || |
336 float_does_not_fit) { | 336 float_does_not_fit) { |
337 container_builder_.AddUnpositionedFloat(floating_object); | 337 container_builder_.AddUnpositionedFloat(floating_object); |
338 } else { | 338 } else { |
339 NGLogicalOffset origin_point = | 339 NGLogicalOffset origin_point = |
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595 root_line_box->setLineTopBottomPositions( | 595 root_line_box->setLineTopBottomPositions( |
596 baseline - LayoutUnit(metrics.ascent), | 596 baseline - LayoutUnit(metrics.ascent), |
597 baseline + LayoutUnit(metrics.descent), line_top_with_leading, | 597 baseline + LayoutUnit(metrics.descent), line_top_with_leading, |
598 baseline + LayoutUnit(metrics.descent_and_leading)); | 598 baseline + LayoutUnit(metrics.descent_and_leading)); |
599 | 599 |
600 bidi_runs.deleteRuns(); | 600 bidi_runs.deleteRuns(); |
601 fragments_for_bidi_runs.clear(); | 601 fragments_for_bidi_runs.clear(); |
602 } | 602 } |
603 } | 603 } |
604 } // namespace blink | 604 } // namespace blink |
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