| // 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. |
| |
| #ifndef LegacyLayoutTreeWalking_h |
| #define LegacyLayoutTreeWalking_h |
| |
| namespace blink { |
| |
| class LayoutBlock; |
| class LayoutObject; |
| |
| // Return the layout object that should be the first child NGLayoutInputNode of |
| // |parent|. Normally this will just be the first layout object child, but there |
| // are certain layout objects that should be skipped for NG. |
| LayoutObject* GetLayoutObjectForFirstChildNode(LayoutBlock*); |
| |
| // Return the layout object that should be the parent NGLayoutInputNode of |
| // |object|. Normally this will just be the parent layout object, but there |
| // are certain layout objects that should be skipped for NG. |
| LayoutObject* GetLayoutObjectForParentNode(LayoutObject*); |
| |
| // Return true if the NGLayoutInputNode children of the NGLayoutInputNode |
| // established by |block| will be inline; see LayoutObject::ChildrenInline(). |
| bool AreNGBlockFlowChildrenInline(const LayoutBlock*); |
| |
| // Return true if the layout object is a LayoutNG object that is managed by the |
| // LayoutNG engine (i.e. its containing block is a LayoutNG object as well). |
| bool IsManagedByLayoutNG(const LayoutObject&); |
| |
| } // namespace blink |
| |
| #endif // LegacyLayoutTreeWalking_h |
