Split xfa_layout_appadapter

xfa/fxfa/parser/xfa_layout_appadapter.h

-// Copyright 2014 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_PARSER_XFA_LAYOUT_APPADAPTER_H_
-#define XFA_FXFA_PARSER_XFA_LAYOUT_APPADAPTER_H_
-
-#include "xfa/fxfa/parser/cxfa_containerlayoutitem.h"
-#include "xfa/fxfa/parser/cxfa_contentlayoutitem.h"
-#include "xfa/fxfa/parser/cxfa_layoutitem.h"
-
-class CXFA_TraverseStrategy_PageAreaContainerLayoutItem {
- public:
-  static inline CXFA_ContainerLayoutItem* GetFirstChild(
-      CXFA_ContainerLayoutItem* pLayoutItem) {
-    if (pLayoutItem->m_pFormNode->GetElementType() == XFA_Element::PageSet) {
-      return static_cast<CXFA_ContainerLayoutItem*>(pLayoutItem->m_pFirstChild);
-    }
-    return nullptr;
-  }
-  static inline CXFA_ContainerLayoutItem* GetNextSibling(
-      CXFA_ContainerLayoutItem* pLayoutItem) {
-    return (CXFA_ContainerLayoutItem*)pLayoutItem->m_pNextSibling;
-  }
-  static inline CXFA_ContainerLayoutItem* GetParent(
-      CXFA_ContainerLayoutItem* pLayoutItem) {
-    return static_cast<CXFA_ContainerLayoutItem*>(pLayoutItem->m_pParent);
-  }
-};
-
-class CXFA_TraverseStrategy_ContentAreaContainerLayoutItem {
- public:
-  static inline CXFA_ContainerLayoutItem* GetFirstChild(
-      CXFA_ContainerLayoutItem* pLayoutItem) {
-    for (CXFA_LayoutItem* pChildItem = pLayoutItem->m_pFirstChild; pChildItem;
-         pChildItem = pChildItem->m_pNextSibling) {
-      if (CXFA_ContainerLayoutItem* pContainer =
-              pChildItem->AsContainerLayoutItem()) {
-        return pContainer;
-      }
-    }
-    return nullptr;
-  }
-  static inline CXFA_ContainerLayoutItem* GetNextSibling(
-      CXFA_ContainerLayoutItem* pLayoutItem) {
-    for (CXFA_LayoutItem* pChildItem = pLayoutItem->m_pNextSibling; pChildItem;
-         pChildItem = pChildItem->m_pNextSibling) {
-      if (CXFA_ContainerLayoutItem* pContainer =
-              pChildItem->AsContainerLayoutItem()) {
-        return pContainer;
-      }
-    }
-    return nullptr;
-  }
-  static inline CXFA_ContainerLayoutItem* GetParent(
-      CXFA_ContainerLayoutItem* pLayoutItem) {
-    return static_cast<CXFA_ContainerLayoutItem*>(pLayoutItem->m_pParent);
-  }
-};
-
-class CXFA_TraverseStrategy_ContentLayoutItem {
- public:
-  static inline CXFA_ContentLayoutItem* GetFirstChild(
-      CXFA_ContentLayoutItem* pLayoutItem) {
-    return static_cast<CXFA_ContentLayoutItem*>(pLayoutItem->m_pFirstChild);
-  }
-  static inline CXFA_ContentLayoutItem* GetNextSibling(
-      CXFA_ContentLayoutItem* pLayoutItem) {
-    return static_cast<CXFA_ContentLayoutItem*>(pLayoutItem->m_pNextSibling);
-  }
-  static inline CXFA_ContentLayoutItem* GetParent(
-      CXFA_ContentLayoutItem* pLayoutItem) {
-    return static_cast<CXFA_ContentLayoutItem*>(pLayoutItem->m_pParent);
-  }
-};
-
-void XFA_ReleaseLayoutItem(CXFA_LayoutItem* pLayoutItem);
-
-#endif  // XFA_FXFA_PARSER_XFA_LAYOUT_APPADAPTER_H_