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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_length_utils.h" | 5 #include "core/layout/ng/ng_length_utils.h" |
6 | 6 |
7 #include "core/layout/ng/ng_constraint_space.h" | 7 #include "core/layout/ng/ng_constraint_space.h" |
8 #include "core/layout/ng/ng_constraint_space_builder.h" | 8 #include "core/layout/ng/ng_constraint_space_builder.h" |
9 #include "core/layout/ng/ng_fragment_base.h" | |
10 #include "core/style/ComputedStyle.h" | 9 #include "core/style/ComputedStyle.h" |
| 10 #include "core/layout/ng/ng_fragment.h" |
11 #include "platform/LayoutUnit.h" | 11 #include "platform/LayoutUnit.h" |
12 #include "platform/Length.h" | 12 #include "platform/Length.h" |
13 #include "wtf/Optional.h" | 13 #include "wtf/Optional.h" |
14 | 14 |
15 namespace blink { | 15 namespace blink { |
16 // TODO(layout-ng): | 16 // TODO(layout-ng): |
17 // - positioned and/or replaced calculations | 17 // - positioned and/or replaced calculations |
18 // - Take scrollbars into account | 18 // - Take scrollbars into account |
19 | 19 |
20 bool NeedMinAndMaxContentSizes(const NGConstraintSpace& constraint_space, | 20 bool NeedMinAndMaxContentSizes(const NGConstraintSpace& constraint_space, |
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383 constraint_space, style, empty_sizes, style.paddingBefore(), | 383 constraint_space, style, empty_sizes, style.paddingBefore(), |
384 LengthResolveType::kMarginBorderPaddingSize); | 384 LengthResolveType::kMarginBorderPaddingSize); |
385 padding.block_end = ResolveInlineLength( | 385 padding.block_end = ResolveInlineLength( |
386 constraint_space, style, empty_sizes, style.paddingAfter(), | 386 constraint_space, style, empty_sizes, style.paddingAfter(), |
387 LengthResolveType::kMarginBorderPaddingSize); | 387 LengthResolveType::kMarginBorderPaddingSize); |
388 return padding; | 388 return padding; |
389 } | 389 } |
390 | 390 |
391 void ApplyAutoMargins(const NGConstraintSpace& constraint_space, | 391 void ApplyAutoMargins(const NGConstraintSpace& constraint_space, |
392 const ComputedStyle& style, | 392 const ComputedStyle& style, |
393 const NGFragmentBase& fragment, | 393 const NGFragment& fragment, |
394 NGBoxStrut* margins) { | 394 NGBoxStrut* margins) { |
395 DCHECK(margins) << "Margins cannot be NULL here"; | 395 DCHECK(margins) << "Margins cannot be NULL here"; |
396 const LayoutUnit used_space = fragment.InlineSize() + margins->InlineSum(); | 396 const LayoutUnit used_space = fragment.InlineSize() + margins->InlineSum(); |
397 const LayoutUnit available_space = | 397 const LayoutUnit available_space = |
398 constraint_space.AvailableSize().inline_size - used_space; | 398 constraint_space.AvailableSize().inline_size - used_space; |
399 if (available_space < LayoutUnit()) | 399 if (available_space < LayoutUnit()) |
400 return; | 400 return; |
401 if (style.marginStart().isAuto() && style.marginEnd().isAuto()) { | 401 if (style.marginStart().isAuto() && style.marginEnd().isAuto()) { |
402 margins->inline_start = available_space / 2; | 402 margins->inline_start = available_space / 2; |
403 margins->inline_end = available_space - margins->inline_start; | 403 margins->inline_end = available_space - margins->inline_start; |
404 } else if (style.marginStart().isAuto()) { | 404 } else if (style.marginStart().isAuto()) { |
405 margins->inline_start = available_space; | 405 margins->inline_start = available_space; |
406 } else if (style.marginEnd().isAuto()) { | 406 } else if (style.marginEnd().isAuto()) { |
407 margins->inline_end = available_space; | 407 margins->inline_end = available_space; |
408 } | 408 } |
409 } | 409 } |
410 | 410 |
411 } // namespace blink | 411 } // namespace blink |
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