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// 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 "constants/stream_dict_common.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfdoc/cpdf_filespec.h"
#include "core/fpdfdoc/cpdf_nametree.h"
namespace {
const 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_Action::CPDF_Action(const CPDF_Dictionary* pDict) : m_pDict(pDict) {}
CPDF_Action::CPDF_Action(const CPDF_Action& that) = default;
CPDF_Action::~CPDF_Action() = default;
CPDF_Action::ActionType CPDF_Action::GetType() const {
if (!m_pDict)
return Unknown;
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;
}
CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
ActionType type = GetType();
if (type != GoTo && type != GoToR)
return CPDF_Dest();
const 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->GetUnicodeText()));
}
if (const CPDF_Array* pArray = pDest->AsArray())
return CPDF_Dest(pArray);
return CPDF_Dest();
}
WideString CPDF_Action::GetFilePath() const {
ActionType type = GetType();
if (type != GoToR && type != Launch && type != SubmitForm &&
type != ImportData) {
return WideString();
}
const CPDF_Object* pFile = m_pDict->GetDirectObjectFor(pdfium::stream::kF);
if (pFile)
return CPDF_FileSpec(pFile).GetFileName();
if (type != Launch)
return WideString();
const CPDF_Dictionary* pWinDict = m_pDict->GetDictFor("Win");
if (!pWinDict)
return WideString();
return WideString::FromLocal(
pWinDict->GetStringFor(pdfium::stream::kF).AsStringView());
}
ByteString CPDF_Action::GetURI(const CPDF_Document* pDoc) const {
ActionType type = GetType();
if (type != URI)
return ByteString();
ByteString csURI = m_pDict->GetStringFor("URI");
const CPDF_Dictionary* pRoot = pDoc->GetRoot();
const CPDF_Dictionary* pURI = pRoot->GetDictFor("URI");
if (pURI) {
auto result = csURI.Find(":");
if (!result.has_value() || result.value() == 0)
csURI = pURI->GetStringFor("Base") + csURI;
}
return csURI;
}
bool CPDF_Action::GetHideStatus() const {
return m_pDict->GetBooleanFor("H", true);
}
ByteString CPDF_Action::GetNamedAction() const {
return m_pDict->GetStringFor("N");
}
uint32_t CPDF_Action::GetFlags() const {
return m_pDict->GetIntegerFor("Flags");
}
WideString CPDF_Action::GetJavaScript() const {
WideString csJS;
if (!m_pDict)
return csJS;
const 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;
const CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
if (!pNext)
return 0;
if (pNext->IsDictionary())
return 1;
const CPDF_Array* pArray = pNext->AsArray();
return pArray ? pArray->size() : 0;
}
CPDF_Action CPDF_Action::GetSubAction(size_t iIndex) const {
if (!m_pDict || !m_pDict->KeyExist("Next"))
return CPDF_Action(nullptr);
const CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
if (const CPDF_Array* pArray = ToArray(pNext))
return CPDF_Action(pArray->GetDictAt(iIndex));
if (const CPDF_Dictionary* pDict = ToDictionary(pNext)) {
if (iIndex == 0)
return CPDF_Action(pDict);
}
return CPDF_Action(nullptr);
}
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