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// Copyright 2016 The PDFium Authors
// 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 <stdint.h>
#include <memory>
#include <utility>
#include <vector>
#include "core/fpdfapi/page/cpdf_annotcontext.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfdoc/cpdf_nametree.h"
#include "core/fxcrt/data_vector.h"
#include "core/fxcrt/stl_util.h"
#include "fpdfsdk/cpdfsdk_helpers.h"
#include "fpdfsdk/cpdfsdk_interactiveform.h"
#include "fpdfsdk/cpdfsdk_pageview.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cffl_formfield.h"
#include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
#include "fxjs/ijs_event_context.h"
#include "fxjs/ijs_runtime.h"
#include "third_party/base/check.h"
#include "third_party/base/containers/contains.h"
#include "third_party/base/notreached.h"
#include "third_party/base/numerics/safe_conversions.h"
#ifdef PDF_ENABLE_XFA
#include "fpdfsdk/fpdfxfa/cpdfxfa_widget.h"
#endif
static_assert(FXCT_ARROW ==
static_cast<int>(IPWL_FillerNotify::CursorStyle::kArrow),
"kArrow value mismatch");
static_assert(FXCT_NESW ==
static_cast<int>(IPWL_FillerNotify::CursorStyle::kNESW),
"kNEWS value mismatch");
static_assert(FXCT_NWSE ==
static_cast<int>(IPWL_FillerNotify::CursorStyle::kNWSE),
"kNWSE value mismatch");
static_assert(FXCT_VBEAM ==
static_cast<int>(IPWL_FillerNotify::CursorStyle::kVBeam),
"kVBeam value mismatch");
static_assert(FXCT_HBEAM ==
static_cast<int>(IPWL_FillerNotify::CursorStyle::kHBeam),
"HBeam value mismatch");
static_assert(FXCT_HAND ==
static_cast<int>(IPWL_FillerNotify::CursorStyle::kHand),
"kHand value mismatch");
FPDF_WIDESTRING AsFPDFWideString(ByteString* bsUTF16LE) {
// Force a private version of the string, since we're about to hand it off
// to the embedder. Should the embedder modify it by accident, it won't
// corrupt other shares of the string beyond |bsUTF16LE|.
return reinterpret_cast<FPDF_WIDESTRING>(
bsUTF16LE->GetBuffer(bsUTF16LE->GetLength()).data());
}
CPDFSDK_FormFillEnvironment::CPDFSDK_FormFillEnvironment(
CPDF_Document* pDoc,
FPDF_FORMFILLINFO* pFFinfo)
: m_pInfo(pFFinfo),
m_pCPDFDoc(pDoc),
m_pInteractiveFormFiller(
std::make_unique<CFFL_InteractiveFormFiller>(this)) {
DCHECK(m_pCPDFDoc);
}
CPDFSDK_FormFillEnvironment::~CPDFSDK_FormFillEnvironment() {
m_bBeingDestroyed = true;
ClearAllFocusedAnnots();
// |m_PageMap| will try to access |m_pInteractiveForm| when it cleans itself
// up. Make sure it is deleted before |m_pInteractiveForm|.
m_PageMap.clear();
// Must destroy the |m_pInteractiveFormFiller| 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_pInteractiveFormFiller.reset();
if (m_pInfo && m_pInfo->Release)
m_pInfo->Release(m_pInfo);
}
void CPDFSDK_FormFillEnvironment::InvalidateRect(CPDFSDK_Widget* widget,
const CFX_FloatRect& rect) {
IPDF_Page* pPage = widget->GetPage();
if (!pPage)
return;
CFX_Matrix device2page =
widget->GetPageView()->GetCurrentMatrix().GetInverse();
CFX_PointF left_top = device2page.Transform(CFX_PointF(rect.left, rect.top));
CFX_PointF right_bottom =
device2page.Transform(CFX_PointF(rect.right, rect.bottom));
CFX_FloatRect rcPDF(left_top.x, right_bottom.y, right_bottom.x, left_top.y);
rcPDF.Normalize();
Invalidate(pPage, rcPDF.GetOuterRect());
}
void CPDFSDK_FormFillEnvironment::OutputSelectedRect(
CFFL_FormField* pFormField,
const CFX_FloatRect& rect) {
if (!m_pInfo || !m_pInfo->FFI_OutputSelectedRect)
return;
auto* pPage = FPDFPageFromIPDFPage(pFormField->GetSDKWidget()->GetPage());
DCHECK(pPage);
CFX_PointF ptA = pFormField->PWLtoFFL(CFX_PointF(rect.left, rect.bottom));
CFX_PointF ptB = pFormField->PWLtoFFL(CFX_PointF(rect.right, rect.top));
m_pInfo->FFI_OutputSelectedRect(m_pInfo, pPage, ptA.x, ptB.y, ptB.x, ptA.y);
}
bool CPDFSDK_FormFillEnvironment::IsSelectionImplemented() const {
FPDF_FORMFILLINFO* pInfo = GetFormFillInfo();
return pInfo && pInfo->FFI_OutputSelectedRect;
}
#ifdef PDF_ENABLE_V8
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetCurrentView() {
IPDF_Page* pPage = GetCurrentPage();
return pPage ? GetOrCreatePageView(pPage) : nullptr;
}
IPDF_Page* CPDFSDK_FormFillEnvironment::GetCurrentPage() const {
if (m_pInfo && m_pInfo->FFI_GetCurrentPage) {
return IPDFPageFromFPDFPage(m_pInfo->FFI_GetCurrentPage(
m_pInfo, FPDFDocumentFromCPDFDocument(m_pCPDFDoc)));
}
return nullptr;
}
WideString CPDFSDK_FormFillEnvironment::GetLanguage() {
#ifdef PDF_ENABLE_XFA
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_GetLanguage)
return WideString();
int nRequiredLen = m_pInfo->FFI_GetLanguage(m_pInfo, nullptr, 0);
if (nRequiredLen <= 0)
return WideString();
DataVector<uint8_t> pBuff(nRequiredLen);
int nActualLen =
m_pInfo->FFI_GetLanguage(m_pInfo, pBuff.data(), nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen)
return WideString();
return WideString::FromUTF16LE(reinterpret_cast<uint16_t*>(pBuff.data()),
nActualLen / sizeof(uint16_t));
#else // PDF_ENABLE_XFA
return WideString();
#endif // PDF_ENABLE_XFA
}
WideString CPDFSDK_FormFillEnvironment::GetPlatform() {
#ifdef PDF_ENABLE_XFA
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_GetPlatform)
return WideString();
int nRequiredLen = m_pInfo->FFI_GetPlatform(m_pInfo, nullptr, 0);
if (nRequiredLen <= 0)
return WideString();
DataVector<uint8_t> pBuff(nRequiredLen);
int nActualLen =
m_pInfo->FFI_GetPlatform(m_pInfo, pBuff.data(), nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen)
return WideString();
return WideString::FromUTF16LE(reinterpret_cast<uint16_t*>(pBuff.data()),
nActualLen / sizeof(uint16_t));
#else // PDF_ENABLE_XFA
return WideString();
#endif // PDF_ENABLE_XFA
}
int CPDFSDK_FormFillEnvironment::JS_appAlert(const WideString& Msg,
const WideString& Title,
int Type,
int Icon) {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->app_alert)
return -1;
ByteString bsMsg = Msg.ToUTF16LE();
ByteString bsTitle = Title.ToUTF16LE();
return js_platform->app_alert(js_platform, AsFPDFWideString(&bsMsg),
AsFPDFWideString(&bsTitle), Type, Icon);
}
int CPDFSDK_FormFillEnvironment::JS_appResponse(
const WideString& Question,
const WideString& Title,
const WideString& Default,
const WideString& Label,
FPDF_BOOL bPassword,
pdfium::span<uint8_t> response) {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->app_response)
return -1;
ByteString bsQuestion = Question.ToUTF16LE();
ByteString bsTitle = Title.ToUTF16LE();
ByteString bsDefault = Default.ToUTF16LE();
ByteString bsLabel = Label.ToUTF16LE();
return js_platform->app_response(
js_platform, AsFPDFWideString(&bsQuestion), AsFPDFWideString(&bsTitle),
AsFPDFWideString(&bsDefault), AsFPDFWideString(&bsLabel), bPassword,
response.data(), pdfium::base::checked_cast<int>(response.size()));
}
void CPDFSDK_FormFillEnvironment::JS_appBeep(int nType) {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->app_beep)
return;
js_platform->app_beep(js_platform, nType);
}
WideString CPDFSDK_FormFillEnvironment::JS_fieldBrowse() {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->Field_browse)
return WideString();
const int nRequiredLen = js_platform->Field_browse(js_platform, nullptr, 0);
if (nRequiredLen <= 0)
return WideString();
DataVector<uint8_t> pBuff(nRequiredLen);
const int nActualLen =
js_platform->Field_browse(js_platform, pBuff.data(), nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen)
return WideString();
// Don't include trailing NUL.
pBuff.resize(nActualLen - 1);
// Use FromDefANSI() per "local encoding" comment in fpdf_formfill.h.
return WideString::FromDefANSI(ByteStringView(pBuff));
}
void CPDFSDK_FormFillEnvironment::JS_docmailForm(
pdfium::span<const uint8_t> mailData,
FPDF_BOOL bUI,
const WideString& To,
const WideString& Subject,
const WideString& CC,
const WideString& BCC,
const WideString& Msg) {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->Doc_mail)
return;
ByteString bsTo = To.ToUTF16LE();
ByteString bsSubject = Subject.ToUTF16LE();
ByteString bsCC = CC.ToUTF16LE();
ByteString bsBcc = BCC.ToUTF16LE();
ByteString bsMsg = Msg.ToUTF16LE();
js_platform->Doc_mail(js_platform, const_cast<uint8_t*>(mailData.data()),
pdfium::base::checked_cast<int>(mailData.size()), 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) {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->Doc_print)
return;
js_platform->Doc_print(js_platform, bUI, nStart, nEnd, bSilent, bShrinkToFit,
bPrintAsImage, bReverse, bAnnotations);
}
void CPDFSDK_FormFillEnvironment::JS_docgotoPage(int nPageNum) {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->Doc_gotoPage)
return;
js_platform->Doc_gotoPage(js_platform, nPageNum);
}
WideString CPDFSDK_FormFillEnvironment::JS_docGetFilePath() {
return GetFilePath();
}
#endif // PDF_ENABLE_V8
WideString CPDFSDK_FormFillEnvironment::GetFilePath() const {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->Doc_getFilePath)
return WideString();
const int nRequiredLen =
js_platform->Doc_getFilePath(js_platform, nullptr, 0);
if (nRequiredLen <= 0)
return WideString();
DataVector<uint8_t> pBuff(nRequiredLen);
const int nActualLen =
js_platform->Doc_getFilePath(js_platform, pBuff.data(), nRequiredLen);
if (nActualLen <= 0 || nActualLen > nRequiredLen)
return WideString();
// Don't include trailing NUL.
pBuff.resize(nActualLen - 1);
// Use FromDefANSI() per "local encoding" comment in fpdf_formfill.h.
return WideString::FromDefANSI(ByteStringView(pBuff));
}
void CPDFSDK_FormFillEnvironment::SubmitForm(
pdfium::span<const uint8_t> form_data,
const WideString& URL) {
IPDF_JSPLATFORM* js_platform = GetJSPlatform();
if (!js_platform || !js_platform->Doc_submitForm)
return;
ByteString bsUrl = URL.ToUTF16LE();
js_platform->Doc_submitForm(
js_platform, const_cast<uint8_t*>(form_data.data()),
fxcrt::CollectionSize<int>(form_data), AsFPDFWideString(&bsUrl));
}
IJS_Runtime* CPDFSDK_FormFillEnvironment::GetIJSRuntime() {
if (!m_pIJSRuntime)
m_pIJSRuntime = IJS_Runtime::Create(this);
return m_pIJSRuntime.get();
}
void CPDFSDK_FormFillEnvironment::Invalidate(IPDF_Page* page,
const FX_RECT& rect) {
if (m_pInfo && m_pInfo->FFI_Invalidate) {
m_pInfo->FFI_Invalidate(m_pInfo, FPDFPageFromIPDFPage(page), rect.left,
rect.top, rect.right, rect.bottom);
}
}
void CPDFSDK_FormFillEnvironment::SetCursor(
IPWL_FillerNotify::CursorStyle nCursorType) {
if (m_pInfo && m_pInfo->FFI_SetCursor)
m_pInfo->FFI_SetCursor(m_pInfo, static_cast<int>(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 CFX_Timer::HandlerIface::kInvalidTimerID;
}
void CPDFSDK_FormFillEnvironment::KillTimer(int nTimerID) {
if (m_pInfo && m_pInfo->FFI_KillTimer)
m_pInfo->FFI_KillTimer(m_pInfo, nTimerID);
}
void CPDFSDK_FormFillEnvironment::OnChange() {
if (m_pInfo && m_pInfo->FFI_OnChange)
m_pInfo->FFI_OnChange(m_pInfo);
}
void CPDFSDK_FormFillEnvironment::ExecuteNamedAction(
const ByteString& namedAction) {
if (m_pInfo && m_pInfo->FFI_ExecuteNamedAction)
m_pInfo->FFI_ExecuteNamedAction(m_pInfo, namedAction.c_str());
}
void CPDFSDK_FormFillEnvironment::OnSetFieldInputFocus(const WideString& text) {
OnSetFieldInputFocusInternal(text, true);
}
void CPDFSDK_FormFillEnvironment::OnSetFieldInputFocusInternal(
const WideString& text,
bool bFocus) {
if (m_pInfo && m_pInfo->FFI_SetTextFieldFocus) {
size_t nCharacters = text.GetLength();
ByteString bsUTFText = text.ToUTF16LE();
auto* pBuffer = reinterpret_cast<const unsigned short*>(bsUTFText.c_str());
m_pInfo->FFI_SetTextFieldFocus(
m_pInfo, pBuffer, pdfium::base::checked_cast<FPDF_DWORD>(nCharacters),
bFocus);
}
}
void CPDFSDK_FormFillEnvironment::OnCalculate(
ObservedPtr<CPDFSDK_Annot>& pAnnot) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot.Get());
if (pWidget)
m_pInteractiveForm->OnCalculate(pWidget->GetFormField());
}
void CPDFSDK_FormFillEnvironment::OnFormat(ObservedPtr<CPDFSDK_Annot>& pAnnot) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot.Get());
DCHECK(pWidget);
absl::optional<WideString> sValue =
m_pInteractiveForm->OnFormat(pWidget->GetFormField());
if (!pAnnot)
return;
if (sValue.has_value()) {
m_pInteractiveForm->ResetFieldAppearance(pWidget->GetFormField(), sValue);
m_pInteractiveForm->UpdateField(pWidget->GetFormField());
}
}
void CPDFSDK_FormFillEnvironment::DoURIAction(const ByteString& bsURI,
Mask<FWL_EVENTFLAG> modifiers) {
if (!m_pInfo)
return;
if (m_pInfo->version >= 2 && m_pInfo->FFI_DoURIActionWithKeyboardModifier) {
m_pInfo->FFI_DoURIActionWithKeyboardModifier(m_pInfo, bsURI.c_str(),
modifiers.UncheckedValue());
return;
}
if (m_pInfo->FFI_DoURIAction)
m_pInfo->FFI_DoURIAction(m_pInfo, bsURI.c_str());
}
void CPDFSDK_FormFillEnvironment::DoGoToAction(int nPageIndex,
int zoomMode,
pdfium::span<float> fPosArray) {
if (m_pInfo && m_pInfo->FFI_DoGoToAction) {
m_pInfo->FFI_DoGoToAction(m_pInfo, nPageIndex, zoomMode, fPosArray.data(),
fxcrt::CollectionSize<int>(fPosArray));
}
}
#ifdef PDF_ENABLE_XFA
int CPDFSDK_FormFillEnvironment::GetPageViewCount() const {
return fxcrt::CollectionSize<int>(m_PageMap);
}
void CPDFSDK_FormFillEnvironment::DisplayCaret(IPDF_Page* page,
FPDF_BOOL bVisible,
double left,
double top,
double right,
double bottom) {
if (m_pInfo && m_pInfo->version >= 2 && m_pInfo->FFI_DisplayCaret) {
m_pInfo->FFI_DisplayCaret(m_pInfo, FPDFPageFromIPDFPage(page), bVisible,
left, top, right, bottom);
}
}
int CPDFSDK_FormFillEnvironment::GetCurrentPageIndex() const {
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_GetCurrentPageIndex)
return -1;
return m_pInfo->FFI_GetCurrentPageIndex(
m_pInfo, FPDFDocumentFromCPDFDocument(m_pCPDFDoc));
}
void CPDFSDK_FormFillEnvironment::SetCurrentPage(int iCurPage) {
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_SetCurrentPage)
return;
m_pInfo->FFI_SetCurrentPage(m_pInfo, FPDFDocumentFromCPDFDocument(m_pCPDFDoc),
iCurPage);
}
void CPDFSDK_FormFillEnvironment::GotoURL(const WideString& wsURL) {
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_GotoURL)
return;
ByteString bsTo = wsURL.ToUTF16LE();
m_pInfo->FFI_GotoURL(m_pInfo, FPDFDocumentFromCPDFDocument(m_pCPDFDoc),
AsFPDFWideString(&bsTo));
}
FS_RECTF CPDFSDK_FormFillEnvironment::GetPageViewRect(IPDF_Page* page) {
FS_RECTF rect = {0.0f, 0.0f, 0.0f, 0.0f};
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_GetPageViewRect)
return rect;
double left;
double top;
double right;
double bottom;
m_pInfo->FFI_GetPageViewRect(m_pInfo, FPDFPageFromIPDFPage(page), &left, &top,
&right, &bottom);
rect.left = static_cast<float>(left);
rect.top = static_cast<float>(top);
rect.bottom = static_cast<float>(bottom);
rect.right = static_cast<float>(right);
return rect;
}
bool CPDFSDK_FormFillEnvironment::PopupMenu(IPDF_Page* page,
int menuFlag,
const CFX_PointF& pt) {
return m_pInfo && m_pInfo->version >= 2 && m_pInfo->FFI_PopupMenu &&
m_pInfo->FFI_PopupMenu(m_pInfo, FPDFPageFromIPDFPage(page), nullptr,
menuFlag, pt.x, pt.y);
}
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->version >= 2 && 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->version >= 2 && 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->version >= 2 && m_pInfo->FFI_OpenFile)
return m_pInfo->FFI_OpenFile(m_pInfo, fileType, wsURL, mode);
return nullptr;
}
RetainPtr<IFX_SeekableReadStream> CPDFSDK_FormFillEnvironment::DownloadFromURL(
const WideString& url) {
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_DownloadFromURL)
return nullptr;
ByteString bstrURL = url.ToUTF16LE();
FPDF_FILEHANDLER* fileHandler =
m_pInfo->FFI_DownloadFromURL(m_pInfo, AsFPDFWideString(&bstrURL));
return MakeSeekableStream(fileHandler);
}
WideString CPDFSDK_FormFillEnvironment::PostRequestURL(
const WideString& wsURL,
const WideString& wsData,
const WideString& wsContentType,
const WideString& wsEncode,
const WideString& wsHeader) {
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_PostRequestURL)
return WideString();
ByteString bsURL = wsURL.ToUTF16LE();
ByteString bsData = wsData.ToUTF16LE();
ByteString bsContentType = wsContentType.ToUTF16LE();
ByteString bsEncode = wsEncode.ToUTF16LE();
ByteString bsHeader = wsHeader.ToUTF16LE();
FPDF_BSTR response;
FPDF_BStr_Init(&response);
m_pInfo->FFI_PostRequestURL(
m_pInfo, AsFPDFWideString(&bsURL), AsFPDFWideString(&bsData),
AsFPDFWideString(&bsContentType), AsFPDFWideString(&bsEncode),
AsFPDFWideString(&bsHeader), &response);
WideString wsRet =
WideString::FromUTF16LE(reinterpret_cast<FPDF_WIDESTRING>(response.str),
response.len / sizeof(FPDF_WCHAR));
FPDF_BStr_Clear(&response);
return wsRet;
}
FPDF_BOOL CPDFSDK_FormFillEnvironment::PutRequestURL(
const WideString& wsURL,
const WideString& wsData,
const WideString& wsEncode) {
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_PutRequestURL)
return false;
ByteString bsURL = wsURL.ToUTF16LE();
ByteString bsData = wsData.ToUTF16LE();
ByteString bsEncode = wsEncode.ToUTF16LE();
return m_pInfo->FFI_PutRequestURL(m_pInfo, AsFPDFWideString(&bsURL),
AsFPDFWideString(&bsData),
AsFPDFWideString(&bsEncode));
}
void CPDFSDK_FormFillEnvironment::PageEvent(int iPageCount,
uint32_t dwEventType) const {
if (m_pInfo && m_pInfo->version >= 2 && 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())) {
ObservedPtr<CPDFSDK_PageView> pObserved(it.second.get());
KillFocusAnnot({});
if (!pObserved)
break;
}
}
}
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetOrCreatePageView(
IPDF_Page* pUnderlyingPage) {
CPDFSDK_PageView* pExisting = GetPageView(pUnderlyingPage);
if (pExisting)
return pExisting;
auto pNew = std::make_unique<CPDFSDK_PageView>(this, pUnderlyingPage);
CPDFSDK_PageView* pPageView = pNew.get();
m_PageMap[pUnderlyingPage] = std::move(pNew);
// Delay to load all the annotations, to avoid endless loop.
pPageView->LoadFXAnnots();
return pPageView;
}
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetPageView(
IPDF_Page* pUnderlyingPage) {
auto it = m_PageMap.find(pUnderlyingPage);
return it != m_PageMap.end() ? it->second.get() : nullptr;
}
CFX_Timer::HandlerIface* CPDFSDK_FormFillEnvironment::GetTimerHandler() {
return this;
}
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetPageViewAtIndex(int nIndex) {
IPDF_Page* pTempPage = GetPage(nIndex);
return pTempPage ? GetPageView(pTempPage) : nullptr;
}
void CPDFSDK_FormFillEnvironment::ProcJavascriptAction() {
auto name_tree = CPDF_NameTree::Create(m_pCPDFDoc, "JavaScript");
if (!name_tree)
return;
size_t count = name_tree->GetCount();
for (size_t i = 0; i < count; ++i) {
WideString name;
CPDF_Action action(ToDictionary(name_tree->LookupValueAndName(i, &name)));
DoActionJavaScript(action, name);
}
}
bool CPDFSDK_FormFillEnvironment::ProcOpenAction() {
const CPDF_Dictionary* pRoot = m_pCPDFDoc->GetRoot();
if (!pRoot)
return false;
RetainPtr<const CPDF_Object> pOpenAction(pRoot->GetDictFor("OpenAction"));
if (!pOpenAction)
pOpenAction = pRoot->GetArrayFor("OpenAction");
if (!pOpenAction)
return false;
if (pOpenAction->IsArray())
return true;
RetainPtr<const CPDF_Dictionary> pDict = ToDictionary(pOpenAction);
if (!pDict)
return false;
DoActionDocOpen(CPDF_Action(std::move(pDict)));
return true;
}
void CPDFSDK_FormFillEnvironment::RemovePageView(IPDF_Page* 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({});
// 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);
}
IPDF_Page* CPDFSDK_FormFillEnvironment::GetPage(int nIndex) const {
if (!m_pInfo || !m_pInfo->FFI_GetPage)
return nullptr;
return IPDFPageFromFPDFPage(m_pInfo->FFI_GetPage(
m_pInfo, FPDFDocumentFromCPDFDocument(m_pCPDFDoc), nIndex));
}
CPDFSDK_InteractiveForm* CPDFSDK_FormFillEnvironment::GetInteractiveForm() {
if (!m_pInteractiveForm)
m_pInteractiveForm = std::make_unique<CPDFSDK_InteractiveForm>(this);
return m_pInteractiveForm.get();
}
void CPDFSDK_FormFillEnvironment::UpdateAllViews(CPDFSDK_Annot* pAnnot) {
for (const auto& it : m_PageMap) {
ObservedPtr<CPDFSDK_PageView> pObserved(it.second.get());
if (pObserved) {
pObserved->UpdateView(pAnnot);
if (!pObserved)
break;
}
}
}
CPDFSDK_Annot* CPDFSDK_FormFillEnvironment::GetFocusAnnot() const {
return m_pFocusAnnot.Get();
}
bool CPDFSDK_FormFillEnvironment::SetFocusAnnot(
ObservedPtr<CPDFSDK_Annot>& pAnnot) {
if (m_bBeingDestroyed)
return false;
if (m_pFocusAnnot == pAnnot)
return true;
if (m_pFocusAnnot && !KillFocusAnnot({}))
return false;
if (!pAnnot)
return false;
if (!pAnnot->GetPageView()->IsValid())
return false;
if (m_pFocusAnnot)
return false;
#ifdef PDF_ENABLE_XFA
CPDFXFA_Widget* pXFAWidget = pAnnot->AsXFAWidget();
if (pXFAWidget && pXFAWidget->OnChangedFocus())
return false;
// `pAnnot` may be destroyed in `OnChangedFocus()`.
if (!pAnnot)
return false;
#endif // PDF_ENABLE_XFA
if (!CPDFSDK_Annot::OnSetFocus(pAnnot, {}))
return false;
if (m_pFocusAnnot)
return false;
m_pFocusAnnot.Reset(pAnnot.Get());
// If we are not able to inform the client about the focus change, it
// shouldn't be considered as failure.
SendOnFocusChange(pAnnot);
return true;
}
bool CPDFSDK_FormFillEnvironment::KillFocusAnnot(Mask<FWL_EVENTFLAG> nFlags) {
if (!m_pFocusAnnot)
return false;
ObservedPtr<CPDFSDK_Annot> pFocusAnnot(m_pFocusAnnot.Get());
m_pFocusAnnot.Reset();
if (!CPDFSDK_Annot::OnKillFocus(pFocusAnnot, nFlags)) {
m_pFocusAnnot.Reset(pFocusAnnot.Get());
return false;
}
// Might have been destroyed by OnKillFocus().
if (!pFocusAnnot)
return false;
if (pFocusAnnot->GetAnnotSubtype() == CPDF_Annot::Subtype::WIDGET) {
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pFocusAnnot.Get());
FormFieldType fieldType = pWidget->GetFieldType();
if (fieldType == FormFieldType::kTextField ||
fieldType == FormFieldType::kComboBox) {
OnSetFieldInputFocusInternal(WideString(), false);
}
}
return !m_pFocusAnnot;
}
int CPDFSDK_FormFillEnvironment::GetPageCount() const {
CPDF_Document::Extension* pExtension = m_pCPDFDoc->GetExtension();
return pExtension ? pExtension->GetPageCount() : m_pCPDFDoc->GetPageCount();
}
bool CPDFSDK_FormFillEnvironment::HasPermissions(uint32_t flags) const {
return !!(m_pCPDFDoc->GetUserPermissions() & flags);
}
void CPDFSDK_FormFillEnvironment::SendOnFocusChange(
ObservedPtr<CPDFSDK_Annot>& pAnnot) {
if (!m_pInfo || m_pInfo->version < 2 || !m_pInfo->FFI_OnFocusChange)
return;
// TODO(crbug.com/pdfium/1482): Handle XFA case.
if (pAnnot->AsXFAWidget())
return;
CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
if (!pPageView->IsValid())
return;
IPDF_Page* page = pAnnot->GetPage();
if (!page)
return;
RetainPtr<CPDF_Dictionary> annot_dict =
pAnnot->GetPDFAnnot()->GetMutableAnnotDict();
auto focused_annot = std::make_unique<CPDF_AnnotContext>(annot_dict, page);
FPDF_ANNOTATION fpdf_annot =
FPDFAnnotationFromCPDFAnnotContext(focused_annot.get());
m_pInfo->FFI_OnFocusChange(m_pInfo, fpdf_annot, pPageView->GetPageIndex());
}
bool CPDFSDK_FormFillEnvironment::DoActionDocOpen(const CPDF_Action& action) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteDocumentOpenAction(action, &visited);
}
bool CPDFSDK_FormFillEnvironment::DoActionJavaScript(
const CPDF_Action& JsAction,
WideString csJSName) {
if (JsAction.GetType() == CPDF_Action::Type::kJavaScript) {
WideString swJS = JsAction.GetJavaScript();
if (!swJS.IsEmpty()) {
RunDocumentOpenJavaScript(csJSName, swJS);
return true;
}
}
return false;
}
bool CPDFSDK_FormFillEnvironment::DoActionFieldJavaScript(
const CPDF_Action& JsAction,
CPDF_AAction::AActionType type,
CPDF_FormField* pFormField,
CFFL_FieldAction* data) {
if (IsJSPlatformPresent() &&
JsAction.GetType() == CPDF_Action::Type::kJavaScript) {
WideString swJS = JsAction.GetJavaScript();
if (!swJS.IsEmpty()) {
RunFieldJavaScript(pFormField, type, data, swJS);
return true;
}
}
return false;
}
bool CPDFSDK_FormFillEnvironment::DoActionLink(const CPDF_Action& action,
CPDF_AAction::AActionType type,
Mask<FWL_EVENTFLAG> modifiers) {
if (!CPDF_AAction::IsUserInput(type))
return false;
switch (action.GetType()) {
case CPDF_Action::Type::kGoTo:
DoActionGoTo(action);
return true;
case CPDF_Action::Type::kURI:
DoActionURI(action, modifiers);
return true;
default:
return false;
}
}
bool CPDFSDK_FormFillEnvironment::DoActionDestination(const CPDF_Dest& dest) {
CPDF_Document* document = GetPDFDocument();
DCHECK(document);
std::vector<float> positions = dest.GetScrollPositionArray();
DoGoToAction(dest.GetDestPageIndex(document), dest.GetZoomMode(), positions);
return true;
}
bool CPDFSDK_FormFillEnvironment::DoActionPage(
const CPDF_Action& action,
CPDF_AAction::AActionType eType) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteDocumentPageAction(action, eType, &visited);
}
bool CPDFSDK_FormFillEnvironment::DoActionDocument(
const CPDF_Action& action,
CPDF_AAction::AActionType eType) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteDocumentPageAction(action, eType, &visited);
}
bool CPDFSDK_FormFillEnvironment::DoActionField(const CPDF_Action& action,
CPDF_AAction::AActionType type,
CPDF_FormField* pFormField,
CFFL_FieldAction* data) {
std::set<const CPDF_Dictionary*> visited;
return ExecuteFieldAction(action, type, pFormField, data, &visited);
}
bool CPDFSDK_FormFillEnvironment::ExecuteDocumentOpenAction(
const CPDF_Action& action,
std::set<const CPDF_Dictionary*>* visited) {
const CPDF_Dictionary* pDict = action.GetDict();
if (pdfium::Contains(*visited, pDict))
return false;
visited->insert(pDict);
if (action.GetType() == CPDF_Action::Type::kJavaScript) {
if (IsJSPlatformPresent()) {
WideString swJS = action.GetJavaScript();
if (!swJS.IsEmpty())
RunDocumentOpenJavaScript(WideString(), swJS);
}
} else {
DoActionNoJs(action, CPDF_AAction::AActionType::kDocumentOpen);
}
for (size_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
CPDF_Action subaction = action.GetSubAction(i);
if (!ExecuteDocumentOpenAction(subaction, visited))
return false;
}
return true;
}
bool CPDFSDK_FormFillEnvironment::ExecuteDocumentPageAction(
const CPDF_Action& action,
CPDF_AAction::AActionType type,
std::set<const CPDF_Dictionary*>* visited) {
const CPDF_Dictionary* pDict = action.GetDict();
if (pdfium::Contains(*visited, pDict))
return false;
visited->insert(pDict);
if (action.GetType() == CPDF_Action::Type::kJavaScript) {
if (IsJSPlatformPresent()) {
WideString swJS = action.GetJavaScript();
if (!swJS.IsEmpty())
RunDocumentPageJavaScript(type, swJS);
}
} else {
DoActionNoJs(action, type);
}
for (size_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
CPDF_Action subaction = action.GetSubAction(i);
if (!ExecuteDocumentPageAction(subaction, type, visited))
return false;
}
return true;
}
bool CPDFSDK_FormFillEnvironment::IsValidField(
const CPDF_Dictionary* pFieldDict) {
DCHECK(pFieldDict);
CPDFSDK_InteractiveForm* pForm = GetInteractiveForm();
CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm();
return !!pPDFForm->GetFieldByDict(pFieldDict);
}
bool CPDFSDK_FormFillEnvironment::ExecuteFieldAction(
const CPDF_Action& action,
CPDF_AAction::AActionType type,
CPDF_FormField* pFormField,
CFFL_FieldAction* data,
std::set<const CPDF_Dictionary*>* visited) {
const CPDF_Dictionary* pDict = action.GetDict();
if (pdfium::Contains(*visited, pDict))
return false;
visited->insert(pDict);
if (action.GetType() == CPDF_Action::Type::kJavaScript) {
if (IsJSPlatformPresent()) {
WideString swJS = action.GetJavaScript();
if (!swJS.IsEmpty()) {
RunFieldJavaScript(pFormField, type, data, swJS);
if (!IsValidField(pFormField->GetFieldDict()))
return false;
}
}
} else {
DoActionNoJs(action, type);
}
for (size_t i = 0, sz = action.GetSubActionsCount(); i < sz; i++) {
CPDF_Action subaction = action.GetSubAction(i);
if (!ExecuteFieldAction(subaction, type, pFormField, data, visited))
return false;
}
return true;
}
void CPDFSDK_FormFillEnvironment::DoActionNoJs(const CPDF_Action& action,
CPDF_AAction::AActionType type) {
switch (action.GetType()) {
case CPDF_Action::Type::kGoTo:
DoActionGoTo(action);
break;
case CPDF_Action::Type::kURI:
if (CPDF_AAction::IsUserInput(type))
DoActionURI(action, Mask<FWL_EVENTFLAG>{});
break;
case CPDF_Action::Type::kHide:
DoActionHide(action);
break;
case CPDF_Action::Type::kNamed:
DoActionNamed(action);
break;
case CPDF_Action::Type::kSubmitForm:
if (CPDF_AAction::IsUserInput(type))
DoActionSubmitForm(action);
break;
case CPDF_Action::Type::kResetForm:
DoActionResetForm(action);
break;
case CPDF_Action::Type::kJavaScript:
NOTREACHED_NORETURN();
case CPDF_Action::Type::kSetOCGState:
case CPDF_Action::Type::kThread:
case CPDF_Action::Type::kSound:
case CPDF_Action::Type::kMovie:
case CPDF_Action::Type::kRendition:
case CPDF_Action::Type::kTrans:
case CPDF_Action::Type::kGoTo3DView:
case CPDF_Action::Type::kGoToR:
case CPDF_Action::Type::kGoToE:
case CPDF_Action::Type::kLaunch:
case CPDF_Action::Type::kImportData:
// Unimplemented
break;
default:
break;
}
}
void CPDFSDK_FormFillEnvironment::DoActionGoTo(const CPDF_Action& action) {
DCHECK(action.GetDict());
CPDF_Document* pPDFDocument = GetPDFDocument();
DCHECK(pPDFDocument);
CPDF_Dest MyDest = action.GetDest(pPDFDocument);
DoActionDestination(MyDest);
}
void CPDFSDK_FormFillEnvironment::DoActionURI(const CPDF_Action& action,
Mask<FWL_EVENTFLAG> modifiers) {
DCHECK(action.GetDict());
DoURIAction(action.GetURI(GetPDFDocument()), modifiers);
}
void CPDFSDK_FormFillEnvironment::DoActionNamed(const CPDF_Action& action) {
DCHECK(action.GetDict());
ExecuteNamedAction(action.GetNamedAction());
}
void CPDFSDK_FormFillEnvironment::RunFieldJavaScript(
CPDF_FormField* pFormField,
CPDF_AAction::AActionType type,
CFFL_FieldAction* data,
const WideString& script) {
DCHECK(type != CPDF_AAction::kCalculate);
DCHECK(type != CPDF_AAction::kFormat);
RunScript(script, [type, data, pFormField](IJS_EventContext* context) {
switch (type) {
case CPDF_AAction::kCursorEnter:
context->OnField_MouseEnter(data->bModifier, data->bShift, pFormField);
break;
case CPDF_AAction::kCursorExit:
context->OnField_MouseExit(data->bModifier, data->bShift, pFormField);
break;
case CPDF_AAction::kButtonDown:
context->OnField_MouseDown(data->bModifier, data->bShift, pFormField);
break;
case CPDF_AAction::kButtonUp:
context->OnField_MouseUp(data->bModifier, data->bShift, pFormField);
break;
case CPDF_AAction::kGetFocus:
context->OnField_Focus(data->bModifier, data->bShift, pFormField,
&data->sValue);
break;
case CPDF_AAction::kLoseFocus:
context->OnField_Blur(data->bModifier, data->bShift, pFormField,
&data->sValue);
break;
case CPDF_AAction::kKeyStroke:
context->OnField_Keystroke(
&data->sChange, data->sChangeEx, data->bKeyDown, data->bModifier,
&data->nSelEnd, &data->nSelStart, data->bShift, pFormField,
&data->sValue, data->bWillCommit, data->bFieldFull, &data->bRC);
break;
case CPDF_AAction::kValidate:
context->OnField_Validate(&data->sChange, data->sChangeEx,
data->bKeyDown, data->bModifier, data->bShift,
pFormField, &data->sValue, &data->bRC);
break;
default:
NOTREACHED_NORETURN();
}
});
}
void CPDFSDK_FormFillEnvironment::RunDocumentOpenJavaScript(
const WideString& sScriptName,
const WideString& script) {
RunScript(script, [sScriptName](IJS_EventContext* context) {
context->OnDoc_Open(sScriptName);
});
}
void CPDFSDK_FormFillEnvironment::RunDocumentPageJavaScript(
CPDF_AAction::AActionType type,
const WideString& script) {
RunScript(script, [type](IJS_EventContext* context) {
switch (type) {
case CPDF_AAction::kOpenPage:
context->OnPage_Open();
break;
case CPDF_AAction::kClosePage:
context->OnPage_Close();
break;
case CPDF_AAction::kCloseDocument:
context->OnDoc_WillClose();
break;
case CPDF_AAction::kSaveDocument:
context->OnDoc_WillSave();
break;
case CPDF_AAction::kDocumentSaved:
context->OnDoc_DidSave();
break;
case CPDF_AAction::kPrintDocument:
context->OnDoc_WillPrint();
break;
case CPDF_AAction::kDocumentPrinted:
context->OnDoc_DidPrint();
break;
case CPDF_AAction::kPageVisible:
context->OnPage_InView();
break;
case CPDF_AAction::kPageInvisible:
context->OnPage_OutView();
break;
default:
NOTREACHED_NORETURN();
}
});
}
bool CPDFSDK_FormFillEnvironment::DoActionHide(const CPDF_Action& action) {
CPDFSDK_InteractiveForm* pForm = GetInteractiveForm();
if (pForm->DoAction_Hide(action)) {
SetChangeMark();
return true;
}
return false;
}
bool CPDFSDK_FormFillEnvironment::DoActionSubmitForm(
const CPDF_Action& action) {
CPDFSDK_InteractiveForm* pForm = GetInteractiveForm();
return pForm->DoAction_SubmitForm(action);
}
void CPDFSDK_FormFillEnvironment::DoActionResetForm(const CPDF_Action& action) {
CPDFSDK_InteractiveForm* pForm = GetInteractiveForm();
pForm->DoAction_ResetForm(action);
}
void CPDFSDK_FormFillEnvironment::RunScript(const WideString& script,
const RunScriptCallback& cb) {
IJS_Runtime::ScopedEventContext pContext(GetIJSRuntime());
cb(pContext.Get());
pContext->RunScript(script);
// TODO(dsinclair): Return error if RunScript returns a IJS_Runtime::JS_Error.
}