| // Copyright 2017 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/inline/ng_line_box_fragment_builder.h" |
| |
| #include "core/layout/ng/geometry/ng_logical_size.h" |
| #include "core/layout/ng/inline/ng_inline_break_token.h" |
| #include "core/layout/ng/inline/ng_inline_node.h" |
| #include "core/layout/ng/inline/ng_physical_line_box_fragment.h" |
| #include "core/layout/ng/ng_fragment.h" |
| #include "platform/heap/Handle.h" |
| |
| namespace blink { |
| |
| NGLineBoxFragmentBuilder::NGLineBoxFragmentBuilder(NGInlineNode node) |
| : writing_mode_(kHorizontalTopBottom), |
| direction_(TextDirection::kLtr), |
| node_(node) {} |
| |
| NGLineBoxFragmentBuilder& NGLineBoxFragmentBuilder::SetWritingMode( |
| NGWritingMode writing_mode) { |
| writing_mode_ = writing_mode; |
| return *this; |
| } |
| |
| NGLineBoxFragmentBuilder& NGLineBoxFragmentBuilder::SetDirection( |
| TextDirection direction) { |
| direction_ = direction; |
| return *this; |
| } |
| |
| NGLineBoxFragmentBuilder& NGLineBoxFragmentBuilder::SetInlineSize( |
| LayoutUnit size) { |
| inline_size_ = size; |
| return *this; |
| } |
| |
| NGLineBoxFragmentBuilder& NGLineBoxFragmentBuilder::AddChild( |
| RefPtr<NGPhysicalFragment> child, |
| const NGLogicalOffset& child_offset) { |
| children_.push_back(std::move(child)); |
| offsets_.push_back(child_offset); |
| |
| return *this; |
| } |
| |
| void NGLineBoxFragmentBuilder::MoveChildrenInBlockDirection(LayoutUnit delta) { |
| for (auto& offset : offsets_) |
| offset.block_offset += delta; |
| } |
| |
| void NGLineBoxFragmentBuilder::MoveChildrenInBlockDirection(LayoutUnit delta, |
| unsigned start, |
| unsigned end) { |
| for (unsigned index = start; index < end; index++) |
| offsets_[index].block_offset += delta; |
| } |
| |
| void NGLineBoxFragmentBuilder::SetMetrics(const NGLineHeightMetrics& metrics) { |
| metrics_ = metrics; |
| } |
| |
| void NGLineBoxFragmentBuilder::SetBreakToken( |
| RefPtr<NGInlineBreakToken> break_token) { |
| break_token_ = std::move(break_token); |
| } |
| |
| RefPtr<NGPhysicalLineBoxFragment> |
| NGLineBoxFragmentBuilder::ToLineBoxFragment() { |
| DCHECK_EQ(offsets_.size(), children_.size()); |
| |
| NGWritingMode writing_mode( |
| FromPlatformWritingMode(node_.Style().GetWritingMode())); |
| NGPhysicalSize physical_size = |
| NGLogicalSize(inline_size_, Metrics().LineHeight()) |
| .ConvertToPhysical(writing_mode); |
| |
| for (size_t i = 0; i < children_.size(); ++i) { |
| NGPhysicalFragment* child = children_[i].Get(); |
| child->SetOffset(offsets_[i].ConvertToPhysical( |
| writing_mode, direction_, physical_size, child->Size())); |
| } |
| |
| return AdoptRef(new NGPhysicalLineBoxFragment( |
| physical_size, children_, metrics_, |
| break_token_ ? std::move(break_token_) |
| : NGInlineBreakToken::Create(node_))); |
| } |
| |
| } // namespace blink |