| // Copyright 2018 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 "third_party/blink/renderer/core/layout/ng/inline/ng_inline_child_layout_context.h" |
| |
| #include "third_party/blink/renderer/core/layout/ng/ng_block_break_token.h" |
| |
| namespace blink { |
| |
| namespace { |
| |
| struct SameSizeAsNGInlineChildLayoutContext { |
| NGLogicalLineItems line_items_; |
| base::Optional<NGInlineLayoutStateStack> box_states_; |
| void* pointers[2]; |
| unsigned number; |
| Vector<scoped_refptr<const NGBlockBreakToken>> propagated_float_break_tokens_; |
| }; |
| |
| static_assert( |
| sizeof(NGInlineChildLayoutContext) == |
| sizeof(SameSizeAsNGInlineChildLayoutContext), |
| "Only data which can be regenerated from the node, constraints, and break " |
| "token are allowed to be placed in this context object."); |
| |
| } // namespace |
| |
| NGInlineChildLayoutContext::NGInlineChildLayoutContext() = default; |
| NGInlineChildLayoutContext::~NGInlineChildLayoutContext() = default; |
| |
| NGInlineLayoutStateStack* |
| NGInlineChildLayoutContext::BoxStatesIfValidForItemIndex( |
| const Vector<NGInlineItem>& items, |
| unsigned item_index) { |
| if (box_states_.has_value() && items_ == &items && item_index_ == item_index) |
| return &*box_states_; |
| return nullptr; |
| } |
| |
| void NGInlineChildLayoutContext::ClearPropagatedBreakTokens() { |
| propagated_float_break_tokens_.Shrink(0); |
| } |
| |
| void NGInlineChildLayoutContext::PropagateBreakToken( |
| scoped_refptr<const NGBlockBreakToken> token) { |
| propagated_float_break_tokens_.push_back(token); |
| } |
| |
| } // namespace blink |
