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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 "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include <memory>
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfdoc/cpdf_docjsactions.h"
#include "fpdfsdk/cpdfsdk_annothandlermgr.h"
#include "fpdfsdk/cpdfsdk_interform.h"
#include "fpdfsdk/cpdfsdk_pageview.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
#include "fpdfsdk/fsdk_actionhandler.h"
#include "fpdfsdk/javascript/ijs_runtime.h"
#include "third_party/base/ptr_util.h"
#ifdef PDF_ENABLE_XFA
#include "fpdfsdk/fpdfxfa/cpdfxfa_app.h"
#endif // PDF_ENABLE_XFA
namespace {
// NOTE: |bsUTF16LE| must outlive the use of the result. Care must be taken
// since modifying the result would impact |bsUTF16LE|.
FPDF_WIDESTRING AsFPDFWideString(CFX_ByteString* bsUTF16LE) {
return reinterpret_cast<FPDF_WIDESTRING>(
bsUTF16LE->GetBuffer(bsUTF16LE->GetLength()));
}
} // namespace
CPDFSDK_FormFillEnvironment::CPDFSDK_FormFillEnvironment(
UnderlyingDocumentType* pDoc,
FPDF_FORMFILLINFO* pFFinfo)
: m_pInfo(pFFinfo),
m_pUnderlyingDoc(pDoc),
m_pSysHandler(new CFX_SystemHandler(this)),
m_bChangeMask(false),
m_bBeingDestroyed(false) {}
CPDFSDK_FormFillEnvironment::~CPDFSDK_FormFillEnvironment() {
m_bBeingDestroyed = true;
ClearAllFocusedAnnots();
// |m_pAnnotHandlerMgr| will try to access |m_pFormFiller|
// when it cleans up. So, we must make sure it is cleaned up before
// |m_pFormFiller|.
m_pAnnotHandlerMgr.reset();
// Must destroy the |m_pFormFiller| before the environment (|this|)
// because any created form widgets hold a pointer to the environment.
// Those widgets may call things like KillTimer() as they are shutdown.
m_pFormFiller.reset();
#ifdef PDF_ENABLE_XFA
CPDFXFA_App* pProvider = CPDFXFA_App::GetInstance();
if (pProvider->m_pFormFillEnvList.GetSize() == 0)
pProvider->SetJavaScriptInitialized(FALSE);
#endif // PDF_ENABLE_XFA
if (m_pInfo && m_pInfo->Release)
m_pInfo->Release(m_pInfo);
}
int CPDFSDK_FormFillEnvironment::JS_appAlert(const FX_WCHAR* Msg,
const FX_WCHAR* Title,
uint32_t Type,
uint32_t Icon) {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->app_alert) {
return -1;
}
CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
CFX_ByteString bsTitle = CFX_WideString(Title).UTF16LE_Encode();
return m_pInfo->m_pJsPlatform->app_alert(
m_pInfo->m_pJsPlatform, AsFPDFWideString(&bsMsg),
AsFPDFWideString(&bsTitle), Type, Icon);
}
int CPDFSDK_FormFillEnvironment::JS_appResponse(const FX_WCHAR* Question,
const FX_WCHAR* Title,
const FX_WCHAR* Default,
const FX_WCHAR* cLabel,
FPDF_BOOL bPassword,
void* response,
int length) {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->app_response) {
return -1;
}
CFX_ByteString bsQuestion = CFX_WideString(Question).UTF16LE_Encode();
CFX_ByteString bsTitle = CFX_WideString(Title).UTF16LE_Encode();
CFX_ByteString bsDefault = CFX_WideString(Default).UTF16LE_Encode();
CFX_ByteString bsLabel = CFX_WideString(cLabel).UTF16LE_Encode();
return m_pInfo->m_pJsPlatform->app_response(
m_pInfo->m_pJsPlatform, AsFPDFWideString(&bsQuestion),
AsFPDFWideString(&bsTitle), AsFPDFWideString(&bsDefault),
AsFPDFWideString(&bsLabel), bPassword, response, length);
}
void CPDFSDK_FormFillEnvironment::JS_appBeep(int nType) {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->app_beep) {
return;
}
m_pInfo->m_pJsPlatform->app_beep(m_pInfo->m_pJsPlatform, nType);
}
CFX_WideString CPDFSDK_FormFillEnvironment::JS_fieldBrowse() {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->Field_browse) {
return CFX_WideString();
}
const int nRequiredLen =
m_pInfo->m_pJsPlatform->Field_browse(m_pInfo->m_pJsPlatform, nullptr, 0);
if (nRequiredLen <= 0)
return CFX_WideString();
std::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
memset(pBuff.get(), 0, nRequiredLen);
const int nActualLen = m_pInfo->m_pJsPlatform->Field_browse(
m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen)
return CFX_WideString();
return CFX_WideString::FromLocal(CFX_ByteStringC(pBuff.get(), nActualLen));
}
CFX_WideString CPDFSDK_FormFillEnvironment::JS_docGetFilePath() {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->Doc_getFilePath) {
return CFX_WideString();
}
const int nRequiredLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
m_pInfo->m_pJsPlatform, nullptr, 0);
if (nRequiredLen <= 0)
return CFX_WideString();
std::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
memset(pBuff.get(), 0, nRequiredLen);
const int nActualLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen)
return CFX_WideString();
return CFX_WideString::FromLocal(CFX_ByteStringC(pBuff.get(), nActualLen));
}
void CPDFSDK_FormFillEnvironment::JS_docSubmitForm(void* formData,
int length,
const FX_WCHAR* URL) {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->Doc_submitForm) {
return;
}
CFX_ByteString bsDestination = CFX_WideString(URL).UTF16LE_Encode();
m_pInfo->m_pJsPlatform->Doc_submitForm(m_pInfo->m_pJsPlatform, formData,
length,
AsFPDFWideString(&bsDestination));
}
void CPDFSDK_FormFillEnvironment::JS_docmailForm(void* mailData,
int length,
FPDF_BOOL bUI,
const FX_WCHAR* To,
const FX_WCHAR* Subject,
const FX_WCHAR* CC,
const FX_WCHAR* BCC,
const FX_WCHAR* Msg) {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->Doc_mail) {
return;
}
CFX_ByteString bsTo = CFX_WideString(To).UTF16LE_Encode();
CFX_ByteString bsSubject = CFX_WideString(Subject).UTF16LE_Encode();
CFX_ByteString bsCC = CFX_WideString(CC).UTF16LE_Encode();
CFX_ByteString bsBcc = CFX_WideString(BCC).UTF16LE_Encode();
CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
m_pInfo->m_pJsPlatform->Doc_mail(
m_pInfo->m_pJsPlatform, mailData, length, bUI, AsFPDFWideString(&bsTo),
AsFPDFWideString(&bsSubject), AsFPDFWideString(&bsCC),
AsFPDFWideString(&bsBcc), AsFPDFWideString(&bsMsg));
}
void CPDFSDK_FormFillEnvironment::JS_docprint(FPDF_BOOL bUI,
int nStart,
int nEnd,
FPDF_BOOL bSilent,
FPDF_BOOL bShrinkToFit,
FPDF_BOOL bPrintAsImage,
FPDF_BOOL bReverse,
FPDF_BOOL bAnnotations) {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->Doc_print) {
return;
}
m_pInfo->m_pJsPlatform->Doc_print(m_pInfo->m_pJsPlatform, bUI, nStart, nEnd,
bSilent, bShrinkToFit, bPrintAsImage,
bReverse, bAnnotations);
}
void CPDFSDK_FormFillEnvironment::JS_docgotoPage(int nPageNum) {
if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
!m_pInfo->m_pJsPlatform->Doc_gotoPage) {
return;
}
m_pInfo->m_pJsPlatform->Doc_gotoPage(m_pInfo->m_pJsPlatform, nPageNum);
}
IJS_Runtime* CPDFSDK_FormFillEnvironment::GetJSRuntime() {
if (!IsJSInitiated())
return nullptr;
if (!m_pJSRuntime)
m_pJSRuntime.reset(IJS_Runtime::Create(this));
return m_pJSRuntime.get();
}
CPDFSDK_AnnotHandlerMgr* CPDFSDK_FormFillEnvironment::GetAnnotHandlerMgr() {
if (!m_pAnnotHandlerMgr)
m_pAnnotHandlerMgr = pdfium::MakeUnique<CPDFSDK_AnnotHandlerMgr>(this);
return m_pAnnotHandlerMgr.get();
}
CPDFSDK_ActionHandler* CPDFSDK_FormFillEnvironment::GetActionHander() {
if (!m_pActionHandler)
m_pActionHandler = pdfium::MakeUnique<CPDFSDK_ActionHandler>();
return m_pActionHandler.get();
}
CFFL_InteractiveFormFiller*
CPDFSDK_FormFillEnvironment::GetInteractiveFormFiller() {
if (!m_pFormFiller)
m_pFormFiller = pdfium::MakeUnique<CFFL_InteractiveFormFiller>(this);
return m_pFormFiller.get();
}
void CPDFSDK_FormFillEnvironment::Invalidate(FPDF_PAGE page,
double left,
double top,
double right,
double bottom) {
if (m_pInfo && m_pInfo->FFI_Invalidate)
m_pInfo->FFI_Invalidate(m_pInfo, page, left, top, right, bottom);
}
void CPDFSDK_FormFillEnvironment::OutputSelectedRect(FPDF_PAGE page,
double left,
double top,
double right,
double bottom) {
if (m_pInfo && m_pInfo->FFI_OutputSelectedRect)
m_pInfo->FFI_OutputSelectedRect(m_pInfo, page, left, top, right, bottom);
}
void CPDFSDK_FormFillEnvironment::SetCursor(int nCursorType) {
if (m_pInfo && m_pInfo->FFI_SetCursor)
m_pInfo->FFI_SetCursor(m_pInfo, nCursorType);
}
int CPDFSDK_FormFillEnvironment::SetTimer(int uElapse,
TimerCallback lpTimerFunc) {
if (m_pInfo && m_pInfo->FFI_SetTimer)
return m_pInfo->FFI_SetTimer(m_pInfo, uElapse, lpTimerFunc);
return -1;
}
void CPDFSDK_FormFillEnvironment::KillTimer(int nTimerID) {
if (m_pInfo && m_pInfo->FFI_KillTimer)
m_pInfo->FFI_KillTimer(m_pInfo, nTimerID);
}
FX_SYSTEMTIME CPDFSDK_FormFillEnvironment::GetLocalTime() const {
FX_SYSTEMTIME fxtime;
if (!m_pInfo || !m_pInfo->FFI_GetLocalTime)
return fxtime;
FPDF_SYSTEMTIME systime = m_pInfo->FFI_GetLocalTime(m_pInfo);
fxtime.wDay = systime.wDay;
fxtime.wDayOfWeek = systime.wDayOfWeek;
fxtime.wHour = systime.wHour;
fxtime.wMilliseconds = systime.wMilliseconds;
fxtime.wMinute = systime.wMinute;
fxtime.wMonth = systime.wMonth;
fxtime.wSecond = systime.wSecond;
fxtime.wYear = systime.wYear;
return fxtime;
}
void CPDFSDK_FormFillEnvironment::OnChange() {
if (m_pInfo && m_pInfo->FFI_OnChange)
m_pInfo->FFI_OnChange(m_pInfo);
}
FX_BOOL CPDFSDK_FormFillEnvironment::IsSHIFTKeyDown(uint32_t nFlag) const {
return (nFlag & FWL_EVENTFLAG_ShiftKey) != 0;
}
FX_BOOL CPDFSDK_FormFillEnvironment::IsCTRLKeyDown(uint32_t nFlag) const {
return (nFlag & FWL_EVENTFLAG_ControlKey) != 0;
}
FX_BOOL CPDFSDK_FormFillEnvironment::IsALTKeyDown(uint32_t nFlag) const {
return (nFlag & FWL_EVENTFLAG_AltKey) != 0;
}
FPDF_PAGE CPDFSDK_FormFillEnvironment::GetPage(FPDF_DOCUMENT document,
int nPageIndex) {
if (m_pInfo && m_pInfo->FFI_GetPage)
return m_pInfo->FFI_GetPage(m_pInfo, document, nPageIndex);
return nullptr;
}
FPDF_PAGE CPDFSDK_FormFillEnvironment::GetCurrentPage(FPDF_DOCUMENT document) {
if (m_pInfo && m_pInfo->FFI_GetCurrentPage)
return m_pInfo->FFI_GetCurrentPage(m_pInfo, document);
return nullptr;
}
void CPDFSDK_FormFillEnvironment::ExecuteNamedAction(
const FX_CHAR* namedAction) {
if (m_pInfo && m_pInfo->FFI_ExecuteNamedAction)
m_pInfo->FFI_ExecuteNamedAction(m_pInfo, namedAction);
}
void CPDFSDK_FormFillEnvironment::OnSetFieldInputFocus(
FPDF_WIDESTRING focusText,
FPDF_DWORD nTextLen,
FX_BOOL bFocus) {
if (m_pInfo && m_pInfo->FFI_SetTextFieldFocus)
m_pInfo->FFI_SetTextFieldFocus(m_pInfo, focusText, nTextLen, bFocus);
}
void CPDFSDK_FormFillEnvironment::DoURIAction(const FX_CHAR* bsURI) {
if (m_pInfo && m_pInfo->FFI_DoURIAction)
m_pInfo->FFI_DoURIAction(m_pInfo, bsURI);
}
void CPDFSDK_FormFillEnvironment::DoGoToAction(int nPageIndex,
int zoomMode,
float* fPosArray,
int sizeOfArray) {
if (m_pInfo && m_pInfo->FFI_DoGoToAction) {
m_pInfo->FFI_DoGoToAction(m_pInfo, nPageIndex, zoomMode, fPosArray,
sizeOfArray);
}
}
#ifdef PDF_ENABLE_XFA
void CPDFSDK_FormFillEnvironment::DisplayCaret(FPDF_PAGE page,
FPDF_BOOL bVisible,
double left,
double top,
double right,
double bottom) {
if (m_pInfo && m_pInfo->FFI_DisplayCaret) {
m_pInfo->FFI_DisplayCaret(m_pInfo, page, bVisible, left, top, right,
bottom);
}
}
int CPDFSDK_FormFillEnvironment::GetCurrentPageIndex(FPDF_DOCUMENT document) {
if (!m_pInfo || !m_pInfo->FFI_GetCurrentPageIndex)
return -1;
return m_pInfo->FFI_GetCurrentPageIndex(m_pInfo, document);
}
void CPDFSDK_FormFillEnvironment::SetCurrentPage(FPDF_DOCUMENT document,
int iCurPage) {
if (m_pInfo && m_pInfo->FFI_SetCurrentPage)
m_pInfo->FFI_SetCurrentPage(m_pInfo, document, iCurPage);
}
CFX_WideString CPDFSDK_FormFillEnvironment::GetPlatform() {
if (!m_pInfo || !m_pInfo->FFI_GetPlatform)
return L"";
int nRequiredLen = m_pInfo->FFI_GetPlatform(m_pInfo, nullptr, 0);
if (nRequiredLen <= 0)
return L"";
char* pbuff = new char[nRequiredLen];
memset(pbuff, 0, nRequiredLen);
int nActualLen = m_pInfo->FFI_GetPlatform(m_pInfo, pbuff, nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen) {
delete[] pbuff;
return L"";
}
CFX_ByteString bsRet = CFX_ByteString(pbuff, nActualLen);
CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
(unsigned short*)bsRet.GetBuffer(bsRet.GetLength()),
bsRet.GetLength() / sizeof(unsigned short));
delete[] pbuff;
return wsRet;
}
void CPDFSDK_FormFillEnvironment::GotoURL(FPDF_DOCUMENT document,
const CFX_WideStringC& wsURL) {
if (!m_pInfo || !m_pInfo->FFI_GotoURL)
return;
CFX_ByteString bsTo = CFX_WideString(wsURL).UTF16LE_Encode();
FPDF_WIDESTRING pTo = (FPDF_WIDESTRING)bsTo.GetBuffer(wsURL.GetLength());
m_pInfo->FFI_GotoURL(m_pInfo, document, pTo);
bsTo.ReleaseBuffer();
}
void CPDFSDK_FormFillEnvironment::GetPageViewRect(FPDF_PAGE page,
FS_RECTF& dstRect) {
if (!m_pInfo || !m_pInfo->FFI_GetPageViewRect)
return;
double left;
double top;
double right;
double bottom;
m_pInfo->FFI_GetPageViewRect(m_pInfo, page, &left, &top, &right, &bottom);
dstRect.left = static_cast<float>(left);
dstRect.top = static_cast<float>(top < bottom ? bottom : top);
dstRect.bottom = static_cast<float>(top < bottom ? top : bottom);
dstRect.right = static_cast<float>(right);
}
FX_BOOL CPDFSDK_FormFillEnvironment::PopupMenu(FPDF_PAGE page,
FPDF_WIDGET hWidget,
int menuFlag,
CFX_PointF pt) {
if (!m_pInfo || !m_pInfo->FFI_PopupMenu)
return FALSE;
return m_pInfo->FFI_PopupMenu(m_pInfo, page, hWidget, menuFlag, pt.x, pt.y);
}
void CPDFSDK_FormFillEnvironment::Alert(FPDF_WIDESTRING Msg,
FPDF_WIDESTRING Title,
int Type,
int Icon) {
if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->app_alert) {
m_pInfo->m_pJsPlatform->app_alert(m_pInfo->m_pJsPlatform, Msg, Title, Type,
Icon);
}
}
void CPDFSDK_FormFillEnvironment::EmailTo(FPDF_FILEHANDLER* fileHandler,
FPDF_WIDESTRING pTo,
FPDF_WIDESTRING pSubject,
FPDF_WIDESTRING pCC,
FPDF_WIDESTRING pBcc,
FPDF_WIDESTRING pMsg) {
if (m_pInfo && m_pInfo->FFI_EmailTo)
m_pInfo->FFI_EmailTo(m_pInfo, fileHandler, pTo, pSubject, pCC, pBcc, pMsg);
}
void CPDFSDK_FormFillEnvironment::UploadTo(FPDF_FILEHANDLER* fileHandler,
int fileFlag,
FPDF_WIDESTRING uploadTo) {
if (m_pInfo && m_pInfo->FFI_UploadTo)
m_pInfo->FFI_UploadTo(m_pInfo, fileHandler, fileFlag, uploadTo);
}
FPDF_FILEHANDLER* CPDFSDK_FormFillEnvironment::OpenFile(int fileType,
FPDF_WIDESTRING wsURL,
const char* mode) {
if (m_pInfo && m_pInfo->FFI_OpenFile)
return m_pInfo->FFI_OpenFile(m_pInfo, fileType, wsURL, mode);
return nullptr;
}
IFX_FileRead* CPDFSDK_FormFillEnvironment::DownloadFromURL(
const FX_WCHAR* url) {
if (!m_pInfo || !m_pInfo->FFI_DownloadFromURL)
return nullptr;
CFX_ByteString bstrURL = CFX_WideString(url).UTF16LE_Encode();
FPDF_WIDESTRING wsURL =
(FPDF_WIDESTRING)bstrURL.GetBuffer(bstrURL.GetLength());
FPDF_LPFILEHANDLER fileHandler = m_pInfo->FFI_DownloadFromURL(m_pInfo, wsURL);
return new CFPDF_FileStream(fileHandler);
}
CFX_WideString CPDFSDK_FormFillEnvironment::PostRequestURL(
const FX_WCHAR* wsURL,
const FX_WCHAR* wsData,
const FX_WCHAR* wsContentType,
const FX_WCHAR* wsEncode,
const FX_WCHAR* wsHeader) {
if (!m_pInfo || !m_pInfo->FFI_PostRequestURL)
return L"";
CFX_ByteString bsURL = CFX_WideString(wsURL).UTF16LE_Encode();
FPDF_WIDESTRING URL = (FPDF_WIDESTRING)bsURL.GetBuffer(bsURL.GetLength());
CFX_ByteString bsData = CFX_WideString(wsData).UTF16LE_Encode();
FPDF_WIDESTRING data = (FPDF_WIDESTRING)bsData.GetBuffer(bsData.GetLength());
CFX_ByteString bsContentType = CFX_WideString(wsContentType).UTF16LE_Encode();
FPDF_WIDESTRING contentType =
(FPDF_WIDESTRING)bsContentType.GetBuffer(bsContentType.GetLength());
CFX_ByteString bsEncode = CFX_WideString(wsEncode).UTF16LE_Encode();
FPDF_WIDESTRING encode =
(FPDF_WIDESTRING)bsEncode.GetBuffer(bsEncode.GetLength());
CFX_ByteString bsHeader = CFX_WideString(wsHeader).UTF16LE_Encode();
FPDF_WIDESTRING header =
(FPDF_WIDESTRING)bsHeader.GetBuffer(bsHeader.GetLength());
FPDF_BSTR response;
FPDF_BStr_Init(&response);
m_pInfo->FFI_PostRequestURL(m_pInfo, URL, data, contentType, encode, header,
&response);
CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
(FPDF_WIDESTRING)response.str, response.len / sizeof(FPDF_WIDESTRING));
FPDF_BStr_Clear(&response);
return wsRet;
}
FPDF_BOOL CPDFSDK_FormFillEnvironment::PutRequestURL(const FX_WCHAR* wsURL,
const FX_WCHAR* wsData,
const FX_WCHAR* wsEncode) {
if (!m_pInfo || !m_pInfo->FFI_PutRequestURL)
return FALSE;
CFX_ByteString bsURL = CFX_WideString(wsURL).UTF16LE_Encode();
FPDF_WIDESTRING URL = (FPDF_WIDESTRING)bsURL.GetBuffer(bsURL.GetLength());
CFX_ByteString bsData = CFX_WideString(wsData).UTF16LE_Encode();
FPDF_WIDESTRING data = (FPDF_WIDESTRING)bsData.GetBuffer(bsData.GetLength());
CFX_ByteString bsEncode = CFX_WideString(wsEncode).UTF16LE_Encode();
FPDF_WIDESTRING encode =
(FPDF_WIDESTRING)bsEncode.GetBuffer(bsEncode.GetLength());
return m_pInfo->FFI_PutRequestURL(m_pInfo, URL, data, encode);
}
CFX_WideString CPDFSDK_FormFillEnvironment::GetLanguage() {
if (!m_pInfo || !m_pInfo->FFI_GetLanguage)
return L"";
int nRequiredLen = m_pInfo->FFI_GetLanguage(m_pInfo, nullptr, 0);
if (nRequiredLen <= 0)
return L"";
char* pbuff = new char[nRequiredLen];
memset(pbuff, 0, nRequiredLen);
int nActualLen = m_pInfo->FFI_GetLanguage(m_pInfo, pbuff, nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen) {
delete[] pbuff;
return L"";
}
CFX_ByteString bsRet = CFX_ByteString(pbuff, nActualLen);
CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
(FPDF_WIDESTRING)bsRet.GetBuffer(bsRet.GetLength()),
bsRet.GetLength() / sizeof(FPDF_WIDESTRING));
delete[] pbuff;
return wsRet;
}
void CPDFSDK_FormFillEnvironment::PageEvent(int iPageCount,
uint32_t dwEventType) const {
if (m_pInfo && m_pInfo->FFI_PageEvent)
m_pInfo->FFI_PageEvent(m_pInfo, iPageCount, dwEventType);
}
#endif // PDF_ENABLE_XFA
void CPDFSDK_FormFillEnvironment::ClearAllFocusedAnnots() {
for (auto& it : m_pageMap) {
if (it.second->IsValidSDKAnnot(GetFocusAnnot()))
KillFocusAnnot(0);
}
}
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetPageView(
UnderlyingPageType* pUnderlyingPage,
bool renew) {
auto it = m_pageMap.find(pUnderlyingPage);
if (it != m_pageMap.end())
return it->second.get();
if (!renew)
return nullptr;
CPDFSDK_PageView* pPageView = new CPDFSDK_PageView(this, pUnderlyingPage);
m_pageMap[pUnderlyingPage].reset(pPageView);
// Delay to load all the annotations, to avoid endless loop.
pPageView->LoadFXAnnots();
return pPageView;
}
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetCurrentView() {
UnderlyingPageType* pPage =
UnderlyingFromFPDFPage(GetCurrentPage(m_pUnderlyingDoc));
return pPage ? GetPageView(pPage, true) : nullptr;
}
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetPageView(int nIndex) {
UnderlyingPageType* pTempPage =
UnderlyingFromFPDFPage(GetPage(m_pUnderlyingDoc, nIndex));
if (!pTempPage)
return nullptr;
auto it = m_pageMap.find(pTempPage);
return it != m_pageMap.end() ? it->second.get() : nullptr;
}
void CPDFSDK_FormFillEnvironment::ProcJavascriptFun() {
CPDF_Document* pPDFDoc = GetPDFDocument();
CPDF_DocJSActions docJS(pPDFDoc);
int iCount = docJS.CountJSActions();
if (iCount < 1)
return;
for (int i = 0; i < iCount; i++) {
CFX_ByteString csJSName;
CPDF_Action jsAction = docJS.GetJSAction(i, csJSName);
if (GetActionHander()) {
GetActionHander()->DoAction_JavaScript(
jsAction, CFX_WideString::FromLocal(csJSName.AsStringC()), this);
}
}
}
FX_BOOL CPDFSDK_FormFillEnvironment::ProcOpenAction() {
if (!m_pUnderlyingDoc)
return FALSE;
CPDF_Dictionary* pRoot = GetPDFDocument()->GetRoot();
if (!pRoot)
return FALSE;
CPDF_Object* pOpenAction = pRoot->GetDictFor("OpenAction");
if (!pOpenAction)
pOpenAction = pRoot->GetArrayFor("OpenAction");
if (!pOpenAction)
return FALSE;
if (pOpenAction->IsArray())
return TRUE;
if (CPDF_Dictionary* pDict = pOpenAction->AsDictionary()) {
CPDF_Action action(pDict);
if (GetActionHander())
GetActionHander()->DoAction_DocOpen(action, this);
return TRUE;
}
return FALSE;
}
void CPDFSDK_FormFillEnvironment::RemovePageView(
UnderlyingPageType* pUnderlyingPage) {
auto it = m_pageMap.find(pUnderlyingPage);
if (it == m_pageMap.end())
return;
CPDFSDK_PageView* pPageView = it->second.get();
if (pPageView->IsLocked() || pPageView->IsBeingDestroyed())
return;
// Mark the page view so we do not come into |RemovePageView| a second
// time while we're in the process of removing.
pPageView->SetBeingDestroyed();
// This must happen before we remove |pPageView| from the map because
// |KillFocusAnnot| can call into the |GetPage| method which will
// look for this page view in the map, if it doesn't find it a new one will
// be created. We then have two page views pointing to the same page and
// bad things happen.
if (pPageView->IsValidSDKAnnot(GetFocusAnnot()))
KillFocusAnnot(0);
// Remove the page from the map to make sure we don't accidentally attempt
// to use the |pPageView| while we're cleaning it up.
m_pageMap.erase(it);
}
UnderlyingPageType* CPDFSDK_FormFillEnvironment::GetPage(int nIndex) {
return UnderlyingFromFPDFPage(GetPage(m_pUnderlyingDoc, nIndex));
}
CPDFSDK_InterForm* CPDFSDK_FormFillEnvironment::GetInterForm() {
if (!m_pInterForm)
m_pInterForm = pdfium::MakeUnique<CPDFSDK_InterForm>(this);
return m_pInterForm.get();
}
void CPDFSDK_FormFillEnvironment::UpdateAllViews(CPDFSDK_PageView* pSender,
CPDFSDK_Annot* pAnnot) {
for (const auto& it : m_pageMap) {
CPDFSDK_PageView* pPageView = it.second.get();
if (pPageView != pSender)
pPageView->UpdateView(pAnnot);
}
}
FX_BOOL CPDFSDK_FormFillEnvironment::SetFocusAnnot(
CPDFSDK_Annot::ObservedPtr* pAnnot) {
if (m_bBeingDestroyed)
return FALSE;
if (m_pFocusAnnot == *pAnnot)
return TRUE;
if (m_pFocusAnnot && !KillFocusAnnot(0))
return FALSE;
if (!*pAnnot)
return FALSE;
#ifdef PDF_ENABLE_XFA
CPDFSDK_Annot::ObservedPtr pLastFocusAnnot(m_pFocusAnnot.Get());
#endif // PDF_ENABLE_XFA
CPDFSDK_PageView* pPageView = (*pAnnot)->GetPageView();
if (pPageView && pPageView->IsValid()) {
CPDFSDK_AnnotHandlerMgr* pAnnotHandler = GetAnnotHandlerMgr();
if (!m_pFocusAnnot) {
#ifdef PDF_ENABLE_XFA
if (!pAnnotHandler->Annot_OnChangeFocus(pAnnot, &pLastFocusAnnot))
return FALSE;
#endif // PDF_ENABLE_XFA
if (!pAnnotHandler->Annot_OnSetFocus(pAnnot, 0))
return FALSE;
if (!m_pFocusAnnot) {
m_pFocusAnnot.Reset(pAnnot->Get());
return TRUE;
}
}
}
return FALSE;
}
FX_BOOL CPDFSDK_FormFillEnvironment::KillFocusAnnot(uint32_t nFlag) {
if (m_pFocusAnnot) {
CPDFSDK_AnnotHandlerMgr* pAnnotHandler = GetAnnotHandlerMgr();
CPDFSDK_Annot::ObservedPtr pFocusAnnot(m_pFocusAnnot.Get());
m_pFocusAnnot.Reset();
#ifdef PDF_ENABLE_XFA
CPDFSDK_Annot::ObservedPtr pNull;
if (!pAnnotHandler->Annot_OnChangeFocus(&pNull, &pFocusAnnot))
return FALSE;
#endif // PDF_ENABLE_XFA
if (pAnnotHandler->Annot_OnKillFocus(&pFocusAnnot, nFlag)) {
if (pFocusAnnot->GetAnnotSubtype() == CPDF_Annot::Subtype::WIDGET) {
CPDFSDK_Widget* pWidget =
static_cast<CPDFSDK_Widget*>(pFocusAnnot.Get());
int nFieldType = pWidget->GetFieldType();
if (FIELDTYPE_TEXTFIELD == nFieldType ||
FIELDTYPE_COMBOBOX == nFieldType) {
OnSetFieldInputFocus(nullptr, 0, FALSE);
}
}
if (!m_pFocusAnnot)
return TRUE;
} else {
m_pFocusAnnot.Reset(pFocusAnnot.Get());
}
}
return FALSE;
}
FX_BOOL CPDFSDK_FormFillEnvironment::GetPermissions(int nFlag) {
return GetPDFDocument()->GetUserPermissions() & nFlag;
}