Move xfa_document to cxfa_document

This moves the code to match the actual class name.

Review-Url: https://codereview.chromium.org/2163133004

1 files changed, 427 insertions, 0 deletions

diff --git a/xfa/fxfa/parser/cxfa_document.cpp b/xfa/fxfa/parser/cxfa_document.cpp
new file mode 100644
index 0000000000..346690b484
--- /dev/null
+++ b/xfa/fxfa/parser/cxfa_document.cpp
@@ -0,0 +1,427 @@
+// 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
+
+#include "core/fxcrt/include/fx_ext.h"
+#include "xfa/fxfa/app/xfa_ffnotify.h"
+#include "xfa/fxfa/parser/cscript_datawindow.h"
+#include "xfa/fxfa/parser/cscript_eventpseudomodel.h"
+#include "xfa/fxfa/parser/cscript_hostpseudomodel.h"
+#include "xfa/fxfa/parser/cscript_layoutpseudomodel.h"
+#include "xfa/fxfa/parser/cscript_logpseudomodel.h"
+#include "xfa/fxfa/parser/cscript_signaturepseudomodel.h"
+#include "xfa/fxfa/parser/cxfa_document.h"
+#include "xfa/fxfa/parser/cxfa_document_parser.h"
+#include "xfa/fxfa/parser/cxfa_layoutprocessor.h"
+#include "xfa/fxfa/parser/cxfa_scriptcontext.h"
+#include "xfa/fxfa/parser/xfa_localemgr.h"
+#include "xfa/fxfa/parser/xfa_object.h"
+#include "xfa/fxfa/parser/xfa_resolvenode_rs.h"
+#include "xfa/fxfa/parser/xfa_utils.h"
+
+namespace {
+
+void MergeNodeRecurse(CXFA_Document* pDocument,
+                      CXFA_Node* pDestNodeParent,
+                      CXFA_Node* pProtoNode) {
+  CXFA_Node* pExistingNode = nullptr;
+  for (CXFA_Node* pFormChild =
+           pDestNodeParent->GetNodeItem(XFA_NODEITEM_FirstChild);
+       pFormChild;
+       pFormChild = pFormChild->GetNodeItem(XFA_NODEITEM_NextSibling)) {
+    if (pFormChild->GetElementType() == pProtoNode->GetElementType() &&
+        pFormChild->GetNameHash() == pProtoNode->GetNameHash() &&
+        pFormChild->IsUnusedNode()) {
+      pFormChild->ClearFlag(XFA_NodeFlag_UnusedNode);
+      pExistingNode = pFormChild;
+      break;
+    }
+  }
+
+  if (pExistingNode) {
+    pExistingNode->SetTemplateNode(pProtoNode);
+    for (CXFA_Node* pTemplateChild =
+             pProtoNode->GetNodeItem(XFA_NODEITEM_FirstChild);
+         pTemplateChild; pTemplateChild = pTemplateChild->GetNodeItem(
+                             XFA_NODEITEM_NextSibling)) {
+      MergeNodeRecurse(pDocument, pExistingNode, pTemplateChild);
+    }
+    return;
+  }
+  CXFA_Node* pNewNode = pProtoNode->Clone(TRUE);
+  pNewNode->SetTemplateNode(pProtoNode);
+  pDestNodeParent->InsertChild(pNewNode, nullptr);
+}
+
+void MergeNode(CXFA_Document* pDocument,
+               CXFA_Node* pDestNode,
+               CXFA_Node* pProtoNode) {
+  {
+    CXFA_NodeIterator sIterator(pDestNode);
+    for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode;
+         pNode = sIterator.MoveToNext()) {
+      pNode->SetFlag(XFA_NodeFlag_UnusedNode, true);
+    }
+  }
+  pDestNode->SetTemplateNode(pProtoNode);
+  for (CXFA_Node* pTemplateChild =
+           pProtoNode->GetNodeItem(XFA_NODEITEM_FirstChild);
+       pTemplateChild;
+       pTemplateChild = pTemplateChild->GetNodeItem(XFA_NODEITEM_NextSibling)) {
+    MergeNodeRecurse(pDocument, pDestNode, pTemplateChild);
+  }
+  {
+    CXFA_NodeIterator sIterator(pDestNode);
+    for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode;
+         pNode = sIterator.MoveToNext()) {
+      pNode->ClearFlag(XFA_NodeFlag_UnusedNode);
+    }
+  }
+}
+
+}  // namespace
+
+CXFA_Document::CXFA_Document(CXFA_DocumentParser* pParser)
+    : m_pParser(pParser),
+      m_pScriptContext(nullptr),
+      m_pLayoutProcessor(nullptr),
+      m_pRootNode(nullptr),
+      m_pLocalMgr(nullptr),
+      m_pScriptDataWindow(nullptr),
+      m_pScriptEvent(nullptr),
+      m_pScriptHost(nullptr),
+      m_pScriptLog(nullptr),
+      m_pScriptLayout(nullptr),
+      m_pScriptSignature(nullptr),
+      m_eCurVersionMode(XFA_VERSION_DEFAULT),
+      m_dwDocFlags(0) {
+  ASSERT(m_pParser);
+}
+
+CXFA_Document::~CXFA_Document() {
+  delete m_pRootNode;
+  PurgeNodes();
+}
+
+void CXFA_Document::ClearLayoutData() {
+  delete m_pLayoutProcessor;
+  m_pLayoutProcessor = nullptr;
+  delete m_pScriptContext;
+  m_pScriptContext = nullptr;
+  delete m_pLocalMgr;
+  m_pLocalMgr = nullptr;
+  delete m_pScriptDataWindow;
+  m_pScriptDataWindow = nullptr;
+  delete m_pScriptEvent;
+  m_pScriptEvent = nullptr;
+  delete m_pScriptHost;
+  m_pScriptHost = nullptr;
+  delete m_pScriptLog;
+  m_pScriptLog = nullptr;
+  delete m_pScriptLayout;
+  m_pScriptLayout = nullptr;
+  delete m_pScriptSignature;
+  m_pScriptSignature = nullptr;
+}
+
+void CXFA_Document::SetRoot(CXFA_Node* pNewRoot) {
+  if (m_pRootNode)
+    AddPurgeNode(m_pRootNode);
+
+  m_pRootNode = pNewRoot;
+  RemovePurgeNode(pNewRoot);
+}
+
+CFDE_XMLDoc* CXFA_Document::GetXMLDoc() const {
+  return m_pParser->GetXMLDoc();
+}
+
+CXFA_FFNotify* CXFA_Document::GetNotify() const {
+  return m_pParser->GetNotify();
+}
+
+CXFA_Object* CXFA_Document::GetXFAObject(XFA_HashCode dwNodeNameHash) {
+  switch (dwNodeNameHash) {
+    case XFA_HASHCODE_Data: {
+      CXFA_Node* pDatasetsNode = ToNode(GetXFAObject(XFA_HASHCODE_Datasets));
+      if (!pDatasetsNode)
+        return nullptr;
+
+      for (CXFA_Node* pDatasetsChild =
+               pDatasetsNode->GetFirstChildByClass(XFA_Element::DataGroup);
+           pDatasetsChild;
+           pDatasetsChild = pDatasetsChild->GetNextSameClassSibling(
+               XFA_Element::DataGroup)) {
+        if (pDatasetsChild->GetNameHash() != XFA_HASHCODE_Data)
+          continue;
+
+        CFX_WideString wsNamespaceURI;
+        if (!pDatasetsChild->TryNamespace(wsNamespaceURI))
+          continue;
+
+        CFX_WideString wsDatasetsURI;
+        if (!pDatasetsNode->TryNamespace(wsDatasetsURI))
+          continue;
+        if (wsNamespaceURI == wsDatasetsURI)
+          return pDatasetsChild;
+      }
+      return nullptr;
+    }
+    case XFA_HASHCODE_Record: {
+      CXFA_Node* pData = ToNode(GetXFAObject(XFA_HASHCODE_Data));
+      return pData ? pData->GetFirstChildByClass(XFA_Element::DataGroup)
+                   : nullptr;
+    }
+    case XFA_HASHCODE_DataWindow: {
+      if (!m_pScriptDataWindow)
+        m_pScriptDataWindow = new CScript_DataWindow(this);
+      return m_pScriptDataWindow;
+    }
+    case XFA_HASHCODE_Event: {
+      if (!m_pScriptEvent)
+        m_pScriptEvent = new CScript_EventPseudoModel(this);
+      return m_pScriptEvent;
+    }
+    case XFA_HASHCODE_Host: {
+      if (!m_pScriptHost)
+        m_pScriptHost = new CScript_HostPseudoModel(this);
+      return m_pScriptHost;
+    }
+    case XFA_HASHCODE_Log: {
+      if (!m_pScriptLog)
+        m_pScriptLog = new CScript_LogPseudoModel(this);
+      return m_pScriptLog;
+    }
+    case XFA_HASHCODE_Signature: {
+      if (!m_pScriptSignature)
+        m_pScriptSignature = new CScript_SignaturePseudoModel(this);
+      return m_pScriptSignature;
+    }
+    case XFA_HASHCODE_Layout: {
+      if (!m_pScriptLayout)
+        m_pScriptLayout = new CScript_LayoutPseudoModel(this);
+      return m_pScriptLayout;
+    }
+    default:
+      return m_pRootNode->GetFirstChildByName(dwNodeNameHash);
+  }
+}
+
+CXFA_Node* CXFA_Document::CreateNode(uint32_t dwPacket, XFA_Element eElement) {
+  return CreateNode(XFA_GetPacketByID(dwPacket), eElement);
+}
+
+CXFA_Node* CXFA_Document::CreateNode(const XFA_PACKETINFO* pPacket,
+                                     XFA_Element eElement) {
+  if (!pPacket)
+    return nullptr;
+
+  const XFA_ELEMENTINFO* pElement = XFA_GetElementByID(eElement);
+  if (pElement && (pElement->dwPackets & pPacket->eName)) {
+    CXFA_Node* pNode =
+        new CXFA_Node(this, pPacket->eName, pElement->eObjectType,
+                      pElement->eName, pElement->pName);
+    AddPurgeNode(pNode);
+    return pNode;
+  }
+
+  return nullptr;
+}
+
+void CXFA_Document::AddPurgeNode(CXFA_Node* pNode) {
+  m_PurgeNodes.insert(pNode);
+}
+
+FX_BOOL CXFA_Document::RemovePurgeNode(CXFA_Node* pNode) {
+  return !!m_PurgeNodes.erase(pNode);
+}
+
+void CXFA_Document::PurgeNodes() {
+  for (CXFA_Node* pNode : m_PurgeNodes)
+    delete pNode;
+
+  m_PurgeNodes.clear();
+}
+
+void CXFA_Document::SetFlag(uint32_t dwFlag, FX_BOOL bOn) {
+  if (bOn)
+    m_dwDocFlags |= dwFlag;
+  else
+    m_dwDocFlags &= ~dwFlag;
+}
+
+FX_BOOL CXFA_Document::IsInteractive() {
+  if (m_dwDocFlags & XFA_DOCFLAG_HasInteractive)
+    return !!(m_dwDocFlags & XFA_DOCFLAG_Interactive);
+
+  CXFA_Node* pConfig = ToNode(GetXFAObject(XFA_HASHCODE_Config));
+  if (!pConfig)
+    return FALSE;
+
+  CFX_WideString wsInteractive;
+  CXFA_Node* pPresent = pConfig->GetFirstChildByClass(XFA_Element::Present);
+  if (!pPresent)
+    return FALSE;
+
+  CXFA_Node* pPDF = pPresent->GetFirstChildByClass(XFA_Element::Pdf);
+  if (!pPDF)
+    return FALSE;
+
+  CXFA_Node* pInteractive = pPDF->GetChild(0, XFA_Element::Interactive);
+  if (pInteractive) {
+    m_dwDocFlags |= XFA_DOCFLAG_HasInteractive;
+    if (pInteractive->TryContent(wsInteractive) &&
+        wsInteractive == FX_WSTRC(L"1")) {
+      m_dwDocFlags |= XFA_DOCFLAG_Interactive;
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
+CXFA_LocaleMgr* CXFA_Document::GetLocalMgr() {
+  if (!m_pLocalMgr) {
+    CFX_WideString wsLanguage;
+    GetNotify()->GetAppProvider()->GetLanguage(wsLanguage);
+    m_pLocalMgr = new CXFA_LocaleMgr(
+        ToNode(GetXFAObject(XFA_HASHCODE_LocaleSet)), wsLanguage);
+  }
+  return m_pLocalMgr;
+}
+
+CXFA_ScriptContext* CXFA_Document::InitScriptContext(v8::Isolate* pIsolate) {
+  if (!m_pScriptContext)
+    m_pScriptContext = new CXFA_ScriptContext(this);
+  m_pScriptContext->Initialize(pIsolate);
+  return m_pScriptContext;
+}
+
+CXFA_ScriptContext* CXFA_Document::GetScriptContext() {
+  if (!m_pScriptContext)
+    m_pScriptContext = new CXFA_ScriptContext(this);
+  return m_pScriptContext;
+}
+
+XFA_VERSION CXFA_Document::RecognizeXFAVersionNumber(
+    CFX_WideString& wsTemplateNS) {
+  CFX_WideStringC wsTemplateURIPrefix =
+      XFA_GetPacketByIndex(XFA_PACKET_Template)->pURI;
+  FX_STRSIZE nPrefixLength = wsTemplateURIPrefix.GetLength();
+  if (CFX_WideStringC(wsTemplateNS.c_str(), wsTemplateNS.GetLength()) !=
+      wsTemplateURIPrefix) {
+    return XFA_VERSION_UNKNOWN;
+  }
+  FX_STRSIZE nDotPos = wsTemplateNS.Find('.', nPrefixLength);
+  if (nDotPos == (FX_STRSIZE)-1)
+    return XFA_VERSION_UNKNOWN;
+
+  int8_t iMajor = FXSYS_wtoi(
+      wsTemplateNS.Mid(nPrefixLength, nDotPos - nPrefixLength).c_str());
+  int8_t iMinor = FXSYS_wtoi(
+      wsTemplateNS.Mid(nDotPos + 1, wsTemplateNS.GetLength() - nDotPos - 2)
+          .c_str());
+  XFA_VERSION eVersion = (XFA_VERSION)((int32_t)iMajor * 100 + iMinor);
+  if (eVersion < XFA_VERSION_MIN || eVersion > XFA_VERSION_MAX)
+    return XFA_VERSION_UNKNOWN;
+
+  m_eCurVersionMode = eVersion;
+  return eVersion;
+}
+
+CXFA_Node* CXFA_Document::GetNodeByID(CXFA_Node* pRoot,
+                                      const CFX_WideStringC& wsID) {
+  if (!pRoot || wsID.IsEmpty())
+    return nullptr;
+
+  CXFA_NodeIterator sIterator(pRoot);
+  for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode;
+       pNode = sIterator.MoveToNext()) {
+    CFX_WideStringC wsIDVal;
+    if (pNode->TryCData(XFA_ATTRIBUTE_Id, wsIDVal) && !wsIDVal.IsEmpty()) {
+      if (wsIDVal == wsID)
+        return pNode;
+    }
+  }
+  return nullptr;
+}
+
+void CXFA_Document::DoProtoMerge() {
+  CXFA_Node* pTemplateRoot = ToNode(GetXFAObject(XFA_HASHCODE_Template));
+  if (!pTemplateRoot)
+    return;
+
+  CFX_MapPtrTemplate<uint32_t, CXFA_Node*> mIDMap;
+  CXFA_NodeSet sUseNodes;
+  CXFA_NodeIterator sIterator(pTemplateRoot);
+  for (CXFA_Node* pNode = sIterator.GetCurrent(); pNode;
+       pNode = sIterator.MoveToNext()) {
+    CFX_WideStringC wsIDVal;
+    if (pNode->TryCData(XFA_ATTRIBUTE_Id, wsIDVal) && !wsIDVal.IsEmpty()) {
+      mIDMap[FX_HashCode_GetW(wsIDVal, false)] = pNode;
+    }
+    CFX_WideStringC wsUseVal;
+    if (pNode->TryCData(XFA_ATTRIBUTE_Use, wsUseVal) && !wsUseVal.IsEmpty()) {
+      sUseNodes.insert(pNode);
+    } else if (pNode->TryCData(XFA_ATTRIBUTE_Usehref, wsUseVal) &&
+               !wsUseVal.IsEmpty()) {
+      sUseNodes.insert(pNode);
+    }
+  }
+
+  for (CXFA_Node* pUseHrefNode : sUseNodes) {
+    CFX_WideString wsUseVal;
+    CFX_WideStringC wsURI, wsID, wsSOM;
+    if (pUseHrefNode->TryCData(XFA_ATTRIBUTE_Usehref, wsUseVal) &&
+        !wsUseVal.IsEmpty()) {
+      FX_STRSIZE uSharpPos = wsUseVal.Find('#');
+      if (uSharpPos < 0) {
+        wsURI = wsUseVal.AsStringC();
+      } else {
+        wsURI = CFX_WideStringC(wsUseVal.c_str(), uSharpPos);
+        FX_STRSIZE uLen = wsUseVal.GetLength();
+        if (uLen >= uSharpPos + 5 &&
+            CFX_WideStringC(wsUseVal.c_str() + uSharpPos, 5) ==
+                FX_WSTRC(L"#som(") &&
+            wsUseVal[uLen - 1] == ')') {
+          wsSOM = CFX_WideStringC(wsUseVal.c_str() + uSharpPos + 5,
+                                  uLen - 1 - uSharpPos - 5);
+        } else {
+          wsID = CFX_WideStringC(wsUseVal.c_str() + uSharpPos + 1,
+                                 uLen - uSharpPos - 1);
+        }
+      }
+    } else if (pUseHrefNode->TryCData(XFA_ATTRIBUTE_Use, wsUseVal) &&
+               !wsUseVal.IsEmpty()) {
+      if (wsUseVal[0] == '#')
+        wsID = CFX_WideStringC(wsUseVal.c_str() + 1, wsUseVal.GetLength() - 1);
+      else
+        wsSOM = CFX_WideStringC(wsUseVal.c_str(), wsUseVal.GetLength());
+    }
+
+    if (!wsURI.IsEmpty() && wsURI != FX_WSTRC(L"."))
+      continue;
+
+    CXFA_Node* pProtoNode = nullptr;
+    if (!wsSOM.IsEmpty()) {
+      uint32_t dwFlag = XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Attributes |
+                        XFA_RESOLVENODE_Properties | XFA_RESOLVENODE_Parent |
+                        XFA_RESOLVENODE_Siblings;
+      XFA_RESOLVENODE_RS resoveNodeRS;
+      int32_t iRet = m_pScriptContext->ResolveObjects(pUseHrefNode, wsSOM,
+                                                      resoveNodeRS, dwFlag);
+      if (iRet > 0 && resoveNodeRS.nodes[0]->IsNode()) {
+        pProtoNode = resoveNodeRS.nodes[0]->AsNode();
+      }
+    } else if (!wsID.IsEmpty()) {
+      if (!mIDMap.Lookup(FX_HashCode_GetW(wsID, false), pProtoNode)) {
+        continue;
+      }
+    }
+    if (!pProtoNode)
+      continue;
+
+    MergeNode(this, pUseHrefNode, pProtoNode);
+  }
+}