text: // 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
  
  #include "core/fpdfdoc/cpdf_action.h"
  
  #include "core/fpdfapi/fpdf_parser/cpdf_array.h"
  #include "core/fpdfapi/fpdf_parser/cpdf_document.h"
  #include "core/fpdfdoc/cpdf_filespec.h"
  #include "core/fpdfdoc/cpdf_nametree.h"
  
  namespace {
  
  const FX_CHAR* const g_sATypes[] = {
      "Unknown",     "GoTo",       "GoToR",     "GoToE",      "Launch",
      "Thread",      "URI",        "Sound",     "Movie",      "Hide",
      "Named",       "SubmitForm", "ResetForm", "ImportData", "JavaScript",
      "SetOCGState", "Rendition",  "Trans",     "GoTo3DView", nullptr};
  
  }  // namespace
  
  CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
    if (!m_pDict)
      return CPDF_Dest();
  
    CFX_ByteString type = m_pDict->GetStringFor("S");
    if (type != "GoTo" && type != "GoToR")
      return CPDF_Dest();
  
    CPDF_Object* pDest = m_pDict->GetDirectObjectFor("D");
    if (!pDest)
      return CPDF_Dest();
    if (pDest->IsString() || pDest->IsName()) {
      CPDF_NameTree name_tree(pDoc, "Dests");
      return CPDF_Dest(name_tree.LookupNamedDest(pDoc, pDest->GetString()));
    }
    if (CPDF_Array* pArray = pDest->AsArray())
      return CPDF_Dest(pArray);
  
    return CPDF_Dest();
  }
  
  CPDF_Action::ActionType CPDF_Action::GetType() const {
    if (!m_pDict)
      return Unknown;
  
    CFX_ByteString csType = m_pDict->GetStringFor("S");
    if (csType.IsEmpty())
      return Unknown;
  
    for (int i = 0; g_sATypes[i]; ++i) {
      if (csType == g_sATypes[i])
        return static_cast<ActionType>(i);
    }
    return Unknown;
  }
  
  CFX_WideString CPDF_Action::GetFilePath() const {
    CFX_ByteString type = m_pDict->GetStringFor("S");
    if (type != "GoToR" && type != "Launch" && type != "SubmitForm" &&
        type != "ImportData") {
      return CFX_WideString();
    }
  
    CPDF_Object* pFile = m_pDict->GetDirectObjectFor("F");
    CFX_WideString path;
    if (!pFile) {
      if (type == "Launch") {
        CPDF_Dictionary* pWinDict = m_pDict->GetDictFor("Win");
        if (pWinDict) {
          return CFX_WideString::FromLocal(
              pWinDict->GetStringFor("F").AsStringC());
        }
      }
      return path;
    }
  
    CPDF_FileSpec filespec(pFile);
    filespec.GetFileName(&path);
    return path;
  }
  
  CFX_ByteString CPDF_Action::GetURI(CPDF_Document* pDoc) const {
    CFX_ByteString csURI;
    if (!m_pDict)
      return csURI;
    if (m_pDict->GetStringFor("S") != "URI")
      return csURI;
  
    csURI = m_pDict->GetStringFor("URI");
    CPDF_Dictionary* pRoot = pDoc->GetRoot();
    CPDF_Dictionary* pURI = pRoot->GetDictFor("URI");
    if (pURI) {
      if (csURI.Find(":", 0) < 1)
        csURI = pURI->GetStringFor("Base") + csURI;
    }
    return csURI;
  }
  
  CFX_WideString CPDF_Action::GetJavaScript() const {
    CFX_WideString csJS;
    if (!m_pDict)
      return csJS;
  
    CPDF_Object* pJS = m_pDict->GetDirectObjectFor("JS");
    return pJS ? pJS->GetUnicodeText() : csJS;
  }
  
  size_t CPDF_Action::GetSubActionsCount() const {
    if (!m_pDict || !m_pDict->KeyExist("Next"))
      return 0;
  
    CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
    if (!pNext)
      return 0;
    if (pNext->IsDictionary())
      return 1;
    if (CPDF_Array* pArray = pNext->AsArray())
      return pArray->GetCount();
    return 0;
  }
  
  CPDF_Action CPDF_Action::GetSubAction(size_t iIndex) const {
    if (!m_pDict || !m_pDict->KeyExist("Next"))
      return CPDF_Action();
  
    CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
    if (CPDF_Dictionary* pDict = ToDictionary(pNext)) {
      if (iIndex == 0)
        return CPDF_Action(pDict);
    } else if (CPDF_Array* pArray = ToArray(pNext)) {
      return CPDF_Action(pArray->GetDictAt(iIndex));
    }
    return CPDF_Action();
  }
  