| // 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_constraint_space.h" |
| |
| #include "core/layout/LayoutBox.h" |
| #include "core/style/ComputedStyle.h" |
| |
| namespace blink { |
| |
| NGConstraintSpace::NGConstraintSpace(NGLogicalSize container_size) { |
| container_size_ = container_size; |
| m_inlineTriggersScrollbar = 0; |
| m_blockTriggersScrollbar = 0; |
| m_fixedInlineSize = 0; |
| m_fixedBlockSize = 0; |
| m_blockFragmentationType = FragmentNone; |
| } |
| |
| NGConstraintSpace NGConstraintSpace::fromLayoutObject(const LayoutBox& child) { |
| bool fixedInline = false, fixedBlock = false; |
| // XXX for orthogonal writing mode this is not right |
| LayoutUnit containerLogicalWidth = |
| std::max(LayoutUnit(), child.containingBlockLogicalWidthForContent()); |
| // XXX Make sure this height is correct |
| LayoutUnit containerLogicalHeight = |
| child.containingBlockLogicalHeightForContent(ExcludeMarginBorderPadding); |
| if (child.hasOverrideLogicalContentWidth()) { |
| containerLogicalWidth = child.overrideLogicalContentWidth(); |
| fixedInline = true; |
| } |
| if (child.hasOverrideLogicalContentHeight()) { |
| containerLogicalWidth = child.overrideLogicalContentHeight(); |
| fixedBlock = true; |
| } |
| NGLogicalSize size; |
| size.inlineSize = containerLogicalWidth; |
| size.blockSize = containerLogicalHeight; |
| NGConstraintSpace space(size); |
| space.setOverflowTriggersScrollbar( |
| child.styleRef().overflowInlineDirection() == OverflowAuto, |
| child.styleRef().overflowBlockDirection() == OverflowAuto); |
| space.setFixedSize(fixedInline, fixedBlock); |
| return space; |
| } |
| |
| void NGConstraintSpace::addExclusion(const NGExclusion exclusion, |
| unsigned options) {} |
| |
| void NGConstraintSpace::setOverflowTriggersScrollbar(bool inlineTriggers, |
| bool blockTriggers) { |
| m_inlineTriggersScrollbar = inlineTriggers; |
| m_blockTriggersScrollbar = blockTriggers; |
| } |
| |
| void NGConstraintSpace::setFixedSize(bool inlineFixed, bool blockFixed) { |
| m_fixedInlineSize = inlineFixed; |
| m_fixedBlockSize = blockFixed; |
| } |
| |
| void NGConstraintSpace::setFragmentationType(NGFragmentationType type) { |
| m_blockFragmentationType = type; |
| } |
| |
| DoublyLinkedList<const NGExclusion> NGConstraintSpace::exclusions( |
| unsigned options) const { |
| DoublyLinkedList<const NGExclusion> exclusions; |
| // TODO(eae): Implement. |
| return exclusions; |
| } |
| |
| NGLayoutOpportunityIterator NGConstraintSpace::layoutOpportunities( |
| unsigned clear, |
| NGExclusionFlowType avoid) const { |
| // TODO(eae): Implement. |
| NGLayoutOpportunityIterator iterator(this, clear, avoid); |
| return iterator; |
| } |
| |
| } // namespace blink |