diff options
Diffstat (limited to 'fpdfsdk/fpdfxfa/cpdfxfa_context.cpp')
| -rw-r--r-- | fpdfsdk/fpdfxfa/cpdfxfa_context.cpp | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp b/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp new file mode 100644 index 0000000000..739e16959f --- /dev/null +++ b/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp @@ -0,0 +1,460 @@ +// 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 "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 "xfa/fxfa/cxfa_eventparam.h" +#include "xfa/fxfa/xfa_ffapp.h" +#include "xfa/fxfa/xfa_ffdoc.h" +#include "xfa/fxfa/xfa_ffdocview.h" +#include "xfa/fxfa/xfa_ffpageview.h" +#include "xfa/fxfa/xfa_ffwidgethandler.h" +#include "xfa/fxfa/xfa_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(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 = nullptr; + } + + m_nLoadStatus = FXFA_LOADSTATUS_CLOSED; +} + +void CPDFXFA_Context::CloseXFADoc() { + if (!m_pXFADoc) + return; + m_pXFADoc->CloseDoc(); + m_pXFADoc.reset(); + m_pXFADocView = nullptr; +} + +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 = pFormFillEnv; +} + +FX_BOOL CPDFXFA_Context::LoadXFADoc() { + m_nLoadStatus = FXFA_LOADSTATUS_LOADING; + + if (!m_pPDFDoc) + return FALSE; + + m_XFAPageList.RemoveAll(); + + CXFA_FFApp* pApp = GetXFAApp(); + if (!pApp) + return FALSE; + + m_pXFADoc.reset(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(nullptr); + 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 = DOCTYPE_DYNAMIC_XFA; + else + m_iDocType = DOCTYPE_STATIC_XFA; + + m_pXFADocView = m_pXFADoc->CreateDocView(XFA_DOCVIEW_View); + if (m_pXFADocView->StartLayout() < 0) { + CloseXFADoc(); + SetLastError(FPDF_ERR_XFALAYOUT); + return FALSE; + } + + m_pXFADocView->DoLayout(nullptr); + 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 DOCTYPE_PDF: + case DOCTYPE_STATIC_XFA: + if (m_pPDFDoc) + return m_pPDFDoc->GetPageCount(); + case DOCTYPE_DYNAMIC_XFA: + if (m_pXFADoc) + return m_pXFADocView->CountPageViews(); + default: + return 0; + } +} + +CPDFXFA_Page* CPDFXFA_Context::GetXFAPage(int page_index) { + if (page_index < 0) + return nullptr; + + CPDFXFA_Page* pPage = nullptr; + int nCount = m_XFAPageList.GetSize(); + if (nCount > 0 && page_index < nCount) { + pPage = m_XFAPageList.GetAt(page_index); + if (pPage) + pPage->Retain(); + } else { + m_nPageCount = GetPageCount(); + m_XFAPageList.SetSize(m_nPageCount); + } + if (pPage) + return pPage; + + pPage = new CPDFXFA_Page(this, page_index); + if (!pPage->LoadPage()) { + pPage->Release(); + return nullptr; + } + m_XFAPageList.SetAt(page_index, pPage); + return pPage; +} + +CPDFXFA_Page* CPDFXFA_Context::GetXFAPage(CXFA_FFPageView* pPage) const { + if (!pPage) + return nullptr; + + if (!m_pXFADoc) + return nullptr; + + if (m_iDocType != DOCTYPE_DYNAMIC_XFA) + return nullptr; + + int nSize = m_XFAPageList.GetSize(); + for (int i = 0; i < nSize; i++) { + CPDFXFA_Page* pTempPage = m_XFAPageList.GetAt(i); + if (!pTempPage) + continue; + if (pTempPage->GetXFAPageView() && 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 (page_index < 0 || page_index >= m_XFAPageList.GetSize()) + return; + + if (CPDFXFA_Page* pPage = m_XFAPageList.GetAt(page_index)) + pPage->Release(); +} + +void CPDFXFA_Context::RemovePage(CPDFXFA_Page* page) { + m_XFAPageList.SetAt(page->GetPageIndex(), nullptr); +} + +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(); +} + +void CPDFXFA_Context::GetAppName(CFX_WideString& wsName) { + if (m_pFormFillEnv) + wsName = m_pFormFillEnv->FFI_GetAppName(); +} + +void CPDFXFA_Context::GetLanguage(CFX_WideString& wsLanguage) { + if (m_pFormFillEnv) + wsLanguage = m_pFormFillEnv->GetLanguage(); +} + +void CPDFXFA_Context::GetPlatform(CFX_WideString& wsPlatform) { + if (m_pFormFillEnv) + wsPlatform = m_pFormFillEnv->GetPlatform(); +} + +void CPDFXFA_Context::Beep(uint32_t dwType) { + if (m_pFormFillEnv) + m_pFormFillEnv->JS_appBeep(dwType); +} + +int32_t CPDFXFA_Context::MsgBox(const CFX_WideString& wsMessage, + const CFX_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; +} + +CFX_WideString CPDFXFA_Context::Response(const CFX_WideString& wsQuestion, + const CFX_WideString& wsTitle, + const CFX_WideString& wsDefaultAnswer, + FX_BOOL bMark) { + CFX_WideString wsAnswer; + if (!m_pFormFillEnv) + return wsAnswer; + + int nLength = 2048; + char* pBuff = new char[nLength]; + nLength = m_pFormFillEnv->JS_appResponse(wsQuestion.c_str(), wsTitle.c_str(), + wsDefaultAnswer.c_str(), nullptr, + bMark, pBuff, nLength); + if (nLength > 0) { + nLength = nLength > 2046 ? 2046 : nLength; + pBuff[nLength] = 0; + pBuff[nLength + 1] = 0; + wsAnswer = CFX_WideString::FromUTF16LE( + reinterpret_cast<const unsigned short*>(pBuff), + nLength / sizeof(unsigned short)); + } + delete[] pBuff; + return wsAnswer; +} + +IFX_SeekableReadStream* CPDFXFA_Context::DownloadURL( + const CFX_WideString& wsURL) { + return m_pFormFillEnv ? m_pFormFillEnv->DownloadFromURL(wsURL.c_str()) + : nullptr; +} + +FX_BOOL CPDFXFA_Context::PostRequestURL(const CFX_WideString& wsURL, + const CFX_WideString& wsData, + const CFX_WideString& wsContentType, + const CFX_WideString& wsEncode, + const CFX_WideString& wsHeader, + CFX_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; +} + +FX_BOOL CPDFXFA_Context::PutRequestURL(const CFX_WideString& wsURL, + const CFX_WideString& wsData, + const CFX_WideString& wsEncode) { + return m_pFormFillEnv && + m_pFormFillEnv->PutRequestURL(wsURL.c_str(), wsData.c_str(), + wsEncode.c_str()); +} + +void CPDFXFA_Context::LoadString(int32_t iStringID, CFX_WideString& wsString) { + switch (iStringID) { + case XFA_IDS_ValidateFailed: + wsString = L"%s validation failed"; + return; + case XFA_IDS_CalcOverride: + wsString = L"Calculate Override"; + return; + case XFA_IDS_ModifyField: + wsString = L"Are you sure you want to modify this field?"; + return; + case XFA_IDS_NotModifyField: + wsString = L"You are not allowed to modify this field."; + return; + case XFA_IDS_AppName: + wsString = L"pdfium"; + return; + case XFA_IDS_Unable_TO_SET: + wsString = L"Unable to set "; + return; + case XFA_IDS_INVAlID_PROP_SET: + wsString = L"Invalid property set operation."; + return; + case XFA_IDS_NOT_DEFAUL_VALUE: + wsString = L" doesn't have a default property."; + return; + case XFA_IDS_UNABLE_SET_LANGUAGE: + wsString = L"Unable to set language value."; + return; + case XFA_IDS_UNABLE_SET_NUMPAGES: + wsString = L"Unable to set numPages value."; + return; + case XFA_IDS_UNABLE_SET_PLATFORM: + wsString = L"Unable to set platform value."; + return; + case XFA_IDS_UNABLE_SET_VARIATION: + wsString = L"Unable to set variation value."; + return; + case XFA_IDS_UNABLE_SET_VERSION: + wsString = L"Unable to set version value."; + return; + case XFA_IDS_UNABLE_SET_READY: + wsString = L"Unable to set ready value."; + return; + case XFA_IDS_COMPILER_ERROR: + wsString = L"Compiler error."; + return; + case XFA_IDS_DIVIDE_ZERO: + wsString = L"Divide by zero."; + return; + case XFA_IDS_ACCESS_PROPERTY_IN_NOT_OBJECT: + wsString = + L"An attempt was made to reference property '%s' of a non-object in " + L"SOM expression %s."; + return; + case XFA_IDS_INDEX_OUT_OF_BOUNDS: + wsString = L"Index value is out of bounds."; + return; + case XFA_IDS_INCORRECT_NUMBER_OF_METHOD: + wsString = L"Incorrect number of parameters calling method '%s'."; + return; + case XFA_IDS_ARGUMENT_MISMATCH: + wsString = L"Argument mismatch in property or function argument."; + return; + case XFA_IDS_NOT_HAVE_PROPERTY: + wsString = L"'%s' doesn't have property '%s'."; + return; + case XFA_IDS_VIOLATE_BOUNDARY: + wsString = + L"The element [%s] has violated its allowable number of occurrences."; + return; + case XFA_IDS_SERVER_DENY: + wsString = L"Server does not permit."; + return; + case XFA_IDS_ValidateLimit: + wsString = + L"Message limit exceeded. Remaining %d validation errors not " + L"reported."; + return; + case XFA_IDS_ValidateNullWarning: + wsString = + L"%s cannot be blank. To ignore validations for %s, click Ignore."; + return; + case XFA_IDS_ValidateNullError: + wsString = L"%s cannot be blank."; + return; + case XFA_IDS_ValidateWarning: + wsString = + L"The value you entered for %s is invalid. To ignore validations for " + L"%s, click Ignore."; + return; + case XFA_IDS_ValidateError: + wsString = L"The value you entered for %s is invalid."; + return; + } +} + +IFWL_AdapterTimerMgr* CPDFXFA_Context::GetTimerMgr() { + CXFA_FWLAdapterTimerMgr* pAdapter = nullptr; + if (m_pFormFillEnv) + pAdapter = new CXFA_FWLAdapterTimerMgr(m_pFormFillEnv); + return pAdapter; +} |