| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "core/layout/ng/ng_block_layout_algorithm.h" |
| |
| #include "core/layout/LayoutBox.h" |
| #include "core/layout/ng/ng_constraint_space.h" |
| #include "core/layout/ng/ng_fragment.h" |
| #include "core/layout/ng/ng_length_utils.h" |
| #include "core/style/ComputedStyle.h" |
| #include "platform/LengthFunctions.h" |
| |
| namespace blink { |
| |
| NGBlockLayoutAlgorithm::NGBlockLayoutAlgorithm( |
| PassRefPtr<const ComputedStyle> style, |
| NGBoxIterator boxIterator) |
| : m_style(style), m_boxIterator(boxIterator) {} |
| |
| NGFragment* NGBlockLayoutAlgorithm::layout( |
| const NGConstraintSpace& constraintSpace) { |
| LayoutUnit inlineSize = |
| computeInlineSizeForFragment(constraintSpace, *m_style); |
| |
| HeapVector<Member<const NGFragmentBase>> childFragments; |
| LayoutUnit contentSize; |
| for (NGBox box : m_boxIterator) { |
| NGFragment* fragment = box.layout(constraintSpace); |
| // TODO(layout-ng): Take margins into account |
| fragment->setOffset(LayoutUnit(), contentSize); |
| contentSize += fragment->blockSize(); |
| childFragments.append(fragment); |
| } |
| |
| LayoutUnit blockSize = |
| computeBlockSizeForFragment(constraintSpace, *m_style, contentSize); |
| NGFragment* returnFragment = |
| new NGFragment(inlineSize, blockSize, inlineSize, blockSize, |
| HorizontalTopBottom, LeftToRight); |
| returnFragment->swapChildren(childFragments); |
| return returnFragment; |
| } |
| |
| } // namespace blink |
