| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef XFA_FXFA_LAYOUT_CXFA_TRAVERSESTRATEGY_VIEWLAYOUTITEM_H_ |
| #define XFA_FXFA_LAYOUT_CXFA_TRAVERSESTRATEGY_VIEWLAYOUTITEM_H_ |
| |
| #include "xfa/fxfa/layout/cxfa_viewlayoutitem.h" |
| |
| class CXFA_TraverseStrategy_ViewLayoutItem { |
| public: |
| static CXFA_ViewLayoutItem* GetFirstChild(CXFA_ViewLayoutItem* pLayoutItem) { |
| for (CXFA_LayoutItem* pChildItem = pLayoutItem->GetFirstChild(); pChildItem; |
| pChildItem = pChildItem->GetNextSibling()) { |
| if (CXFA_ViewLayoutItem* pContainer = pChildItem->AsViewLayoutItem()) { |
| return pContainer; |
| } |
| } |
| return nullptr; |
| } |
| |
| static CXFA_ViewLayoutItem* GetNextSibling(CXFA_ViewLayoutItem* pLayoutItem) { |
| for (CXFA_LayoutItem* pChildItem = pLayoutItem->GetNextSibling(); |
| pChildItem; pChildItem = pChildItem->GetNextSibling()) { |
| if (CXFA_ViewLayoutItem* pContainer = pChildItem->AsViewLayoutItem()) { |
| return pContainer; |
| } |
| } |
| return nullptr; |
| } |
| |
| static CXFA_ViewLayoutItem* GetParent(CXFA_ViewLayoutItem* pLayoutItem) { |
| return ToViewLayoutItem(pLayoutItem->GetParent()); |
| } |
| }; |
| |
| #endif // XFA_FXFA_LAYOUT_CXFA_TRAVERSESTRATEGY_VIEWLAYOUTITEM_H_ |