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allwinner_a64/android/external/pdfium/fpdfsdk/fpdfxfa/cpdfxfa_context.cpp
August 71b83c22f1 upload android base code part2
2018-08-08 16:14:42 +08:00

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// 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 <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_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;
}
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(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 = pdfium::CollectionSize<int>(m_XFAPageList);
if (nCount > 0 && page_index < nCount) {
pPage = m_XFAPageList[page_index];
if (pPage) {
pPage->Retain();
return pPage;
}
} else {
m_nPageCount = GetPageCount();
m_XFAPageList.resize(m_nPageCount);
}
pPage = new CPDFXFA_Page(this, page_index);
if (!pPage->LoadPage()) {
pPage->Release();
return nullptr;
}
if (page_index >= 0 &&
page_index < pdfium::CollectionSize<int>(m_XFAPageList)) {
m_XFAPageList[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;
for (CPDFXFA_Page* 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 (page_index < 0 ||
page_index >= pdfium::CollectionSize<int>(m_XFAPageList)) {
return;
}
if (CPDFXFA_Page* pPage = m_XFAPageList[page_index])
pPage->Release();
}
void CPDFXFA_Context::RemovePage(CPDFXFA_Page* page) {
int page_index = page->GetPageIndex();
if (page_index >= 0 &&
page_index < pdfium::CollectionSize<int>(m_XFAPageList)) {
m_XFAPageList[page_index] = 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();
}
CFX_WideString CPDFXFA_Context::GetAppTitle() const {
return L"PDFium";
}
CFX_WideString CPDFXFA_Context::GetAppName() {
return m_pFormFillEnv ? m_pFormFillEnv->FFI_GetAppName() : L"";
}
CFX_WideString CPDFXFA_Context::GetLanguage() {
return m_pFormFillEnv ? m_pFormFillEnv->GetLanguage() : L"";
}
CFX_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 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,
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;
}
CFX_RetainPtr<IFX_SeekableReadStream> CPDFXFA_Context::DownloadURL(
const CFX_WideString& wsURL) {
return m_pFormFillEnv ? m_pFormFillEnv->DownloadFromURL(wsURL.c_str())
: nullptr;
}
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;
}
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());
}
IFWL_AdapterTimerMgr* CPDFXFA_Context::GetTimerMgr() {
CXFA_FWLAdapterTimerMgr* pAdapter = nullptr;
if (m_pFormFillEnv)
pAdapter = new CXFA_FWLAdapterTimerMgr(m_pFormFillEnv);
return pAdapter;
}
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