// 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 "fpdfsdk/fpdfxfa/cpdfxfa_context.h" #include <algorithm> #include <utility> #include "core/fpdfapi/parser/cpdf_document.h" #include "fpdfsdk/cpdfsdk_formfillenvironment.h" #include "fpdfsdk/cpdfsdk_interform.h" #include "fpdfsdk/cpdfsdk_pageview.h" #include "fpdfsdk/fpdfxfa/cpdfxfa_page.h" #include "fpdfsdk/fpdfxfa/cxfa_fwladaptertimermgr.h" #include "fpdfsdk/fsdk_define.h" #include "fpdfsdk/javascript/cjs_runtime.h" #include "fpdfsdk/javascript/ijs_runtime.h" #include "public/fpdf_formfill.h" #include "third_party/base/ptr_util.h" #include "third_party/base/stl_util.h" #include "xfa/fxfa/cxfa_deffontmgr.h" #include "xfa/fxfa/cxfa_eventparam.h" #include "xfa/fxfa/cxfa_ffapp.h" #include "xfa/fxfa/cxfa_ffdoc.h" #include "xfa/fxfa/cxfa_ffdocview.h" #include "xfa/fxfa/cxfa_ffpageview.h" #include "xfa/fxfa/cxfa_ffwidgethandler.h" #include "xfa/fxfa/cxfa_fontmgr.h" #ifndef _WIN32 extern void SetLastError(int err); extern int GetLastError(); #endif CPDFXFA_Context::CPDFXFA_Context(std::unique_ptr<CPDF_Document> pPDFDoc) : m_iDocType(XFA_DocType::PDF), m_pPDFDoc(std::move(pPDFDoc)), m_pFormFillEnv(nullptr), m_pXFADocView(nullptr), m_nLoadStatus(FXFA_LOADSTATUS_PRELOAD), m_nPageCount(0), m_DocEnv(this) { m_pXFAApp = pdfium::MakeUnique<CXFA_FFApp>(this); m_pXFAApp->SetDefaultFontMgr(pdfium::MakeUnique<CXFA_DefFontMgr>()); } CPDFXFA_Context::~CPDFXFA_Context() { m_nLoadStatus = FXFA_LOADSTATUS_CLOSING; // Must happen before we remove the form fill environment. CloseXFADoc(); if (m_pFormFillEnv) { m_pFormFillEnv->ClearAllFocusedAnnots(); // Once we're deleted the FormFillEnvironment will point at a bad underlying // doc so we need to reset it ... m_pFormFillEnv->ResetXFADocument(); m_pFormFillEnv.Reset(); } m_nLoadStatus = FXFA_LOADSTATUS_CLOSED; } void CPDFXFA_Context::CloseXFADoc() { if (!m_pXFADoc) return; m_pXFADocView = nullptr; m_pXFADoc->CloseDoc(); m_pXFADoc.reset(); } void CPDFXFA_Context::SetFormFillEnv( CPDFSDK_FormFillEnvironment* pFormFillEnv) { // The layout data can have pointers back into the script context. That // context will be different if the form fill environment closes, so, force // the layout data to clear. if (m_pXFADoc && m_pXFADoc->GetXFADoc()) m_pXFADoc->GetXFADoc()->ClearLayoutData(); m_pFormFillEnv.Reset(pFormFillEnv); } bool CPDFXFA_Context::LoadXFADoc() { m_nLoadStatus = FXFA_LOADSTATUS_LOADING; if (!m_pPDFDoc) return false; m_XFAPageList.clear(); CXFA_FFApp* pApp = GetXFAApp(); if (!pApp) return false; m_pXFADoc = pApp->CreateDoc(&m_DocEnv, m_pPDFDoc.get()); if (!m_pXFADoc) { SetLastError(FPDF_ERR_XFALOAD); return false; } CXFA_FFDocHandler* pDocHandler = pApp->GetDocHandler(); if (!pDocHandler) { SetLastError(FPDF_ERR_XFALOAD); return false; } m_pXFADoc->StartLoad(); int iStatus = m_pXFADoc->DoLoad(); if (iStatus != XFA_PARSESTATUS_Done) { CloseXFADoc(); SetLastError(FPDF_ERR_XFALOAD); return false; } m_pXFADoc->StopLoad(); m_pXFADoc->GetXFADoc()->InitScriptContext(GetJSERuntime()); if (m_pXFADoc->GetDocType() == XFA_DocType::Dynamic) m_iDocType = XFA_DocType::Dynamic; else m_iDocType = XFA_DocType::Static; m_pXFADocView = m_pXFADoc->CreateDocView(); if (m_pXFADocView->StartLayout() < 0) { CloseXFADoc(); SetLastError(FPDF_ERR_XFALAYOUT); return false; } m_pXFADocView->DoLayout(); m_pXFADocView->StopLayout(); m_nLoadStatus = FXFA_LOADSTATUS_LOADED; return true; } int CPDFXFA_Context::GetPageCount() const { if (!m_pPDFDoc && !m_pXFADoc) return 0; switch (m_iDocType) { case XFA_DocType::PDF: case XFA_DocType::Static: if (m_pPDFDoc) return m_pPDFDoc->GetPageCount(); case XFA_DocType::Dynamic: if (m_pXFADoc) return m_pXFADocView->CountPageViews(); default: return 0; } } CFX_RetainPtr<CPDFXFA_Page> CPDFXFA_Context::GetXFAPage(int page_index) { if (page_index < 0) return nullptr; if (pdfium::IndexInBounds(m_XFAPageList, page_index)) { if (m_XFAPageList[page_index]) return m_XFAPageList[page_index]; } else { m_nPageCount = GetPageCount(); m_XFAPageList.resize(m_nPageCount); } auto pPage = pdfium::MakeRetain<CPDFXFA_Page>(this, page_index); if (!pPage->LoadPage()) return nullptr; if (pdfium::IndexInBounds(m_XFAPageList, page_index)) m_XFAPageList[page_index] = pPage; return pPage; } CFX_RetainPtr<CPDFXFA_Page> CPDFXFA_Context::GetXFAPage( CXFA_FFPageView* pPage) const { if (!pPage) return nullptr; if (!m_pXFADoc) return nullptr; if (m_iDocType != XFA_DocType::Dynamic) return nullptr; for (auto& pTempPage : m_XFAPageList) { if (pTempPage && pTempPage->GetXFAPageView() == pPage) return pTempPage; } return nullptr; } void CPDFXFA_Context::DeletePage(int page_index) { // Delete from the document first because, if GetPage was never called for // this |page_index| then |m_XFAPageList| may have size < |page_index| even // if it's a valid page in the document. if (m_pPDFDoc) m_pPDFDoc->DeletePage(page_index); if (pdfium::IndexInBounds(m_XFAPageList, page_index)) m_XFAPageList[page_index].Reset(); } void CPDFXFA_Context::ClearChangeMark() { if (m_pFormFillEnv) m_pFormFillEnv->ClearChangeMark(); } v8::Isolate* CPDFXFA_Context::GetJSERuntime() const { if (!m_pFormFillEnv) return nullptr; // XFA requires V8, if we have V8 then we have a CJS_Runtime and not the stub. CJS_Runtime* runtime = static_cast<CJS_Runtime*>(m_pFormFillEnv->GetJSRuntime()); return runtime->GetIsolate(); } WideString CPDFXFA_Context::GetAppTitle() const { return L"PDFium"; } WideString CPDFXFA_Context::GetAppName() { return m_pFormFillEnv ? m_pFormFillEnv->FFI_GetAppName() : L""; } WideString CPDFXFA_Context::GetLanguage() { return m_pFormFillEnv ? m_pFormFillEnv->GetLanguage() : L""; } WideString CPDFXFA_Context::GetPlatform() { return m_pFormFillEnv ? m_pFormFillEnv->GetPlatform() : L""; } void CPDFXFA_Context::Beep(uint32_t dwType) { if (m_pFormFillEnv) m_pFormFillEnv->JS_appBeep(dwType); } int32_t CPDFXFA_Context::MsgBox(const WideString& wsMessage, const WideString& wsTitle, uint32_t dwIconType, uint32_t dwButtonType) { if (!m_pFormFillEnv) return -1; uint32_t iconType = 0; int iButtonType = 0; switch (dwIconType) { case XFA_MBICON_Error: iconType |= 0; break; case XFA_MBICON_Warning: iconType |= 1; break; case XFA_MBICON_Question: iconType |= 2; break; case XFA_MBICON_Status: iconType |= 3; break; } switch (dwButtonType) { case XFA_MB_OK: iButtonType |= 0; break; case XFA_MB_OKCancel: iButtonType |= 1; break; case XFA_MB_YesNo: iButtonType |= 2; break; case XFA_MB_YesNoCancel: iButtonType |= 3; break; } int32_t iRet = m_pFormFillEnv->JS_appAlert(wsMessage.c_str(), wsTitle.c_str(), iButtonType, iconType); switch (iRet) { case 1: return XFA_IDOK; case 2: return XFA_IDCancel; case 3: return XFA_IDNo; case 4: return XFA_IDYes; } return XFA_IDYes; } WideString CPDFXFA_Context::Response(const WideString& wsQuestion, const WideString& wsTitle, const WideString& wsDefaultAnswer, bool bMark) { if (!m_pFormFillEnv) return WideString(); int nLength = 2048; std::vector<uint8_t> pBuff(nLength); nLength = m_pFormFillEnv->JS_appResponse(wsQuestion.c_str(), wsTitle.c_str(), wsDefaultAnswer.c_str(), nullptr, bMark, pBuff.data(), nLength); if (nLength <= 0) return WideString(); nLength = std::min(2046, nLength); pBuff[nLength] = 0; pBuff[nLength + 1] = 0; return WideString::FromUTF16LE(reinterpret_cast<uint16_t*>(pBuff.data()), nLength / sizeof(uint16_t)); } CFX_RetainPtr<IFX_SeekableReadStream> CPDFXFA_Context::DownloadURL( const WideString& wsURL) { return m_pFormFillEnv ? m_pFormFillEnv->DownloadFromURL(wsURL.c_str()) : nullptr; } bool CPDFXFA_Context::PostRequestURL(const WideString& wsURL, const WideString& wsData, const WideString& wsContentType, const WideString& wsEncode, const WideString& wsHeader, WideString& wsResponse) { if (!m_pFormFillEnv) return false; wsResponse = m_pFormFillEnv->PostRequestURL( wsURL.c_str(), wsData.c_str(), wsContentType.c_str(), wsEncode.c_str(), wsHeader.c_str()); return true; } bool CPDFXFA_Context::PutRequestURL(const WideString& wsURL, const WideString& wsData, const WideString& wsEncode) { return m_pFormFillEnv && m_pFormFillEnv->PutRequestURL(wsURL.c_str(), wsData.c_str(), wsEncode.c_str()); } IFWL_AdapterTimerMgr* CPDFXFA_Context::GetTimerMgr() { CXFA_FWLAdapterTimerMgr* pAdapter = nullptr; if (m_pFormFillEnv) pAdapter = new CXFA_FWLAdapterTimerMgr(m_pFormFillEnv.Get()); return pAdapter; }