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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 <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/fx_memory_wrappers.h"
#include "fpdfsdk/cpdfsdk_actionhandler.h"
#include "fpdfsdk/cpdfsdk_annothandlermgr.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_formfiller.h"
#include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
#include "fxjs/ijs_runtime.h"
#include "third_party/base/stl_util.h"
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,
std::unique_ptr<CPDFSDK_AnnotHandlerMgr> pHandlerMgr)
: m_pInfo(pFFinfo),
m_pCPDFDoc(pDoc),
m_pAnnotHandlerMgr(std::move(pHandlerMgr)) {
ASSERT(m_pCPDFDoc);
m_pAnnotHandlerMgr->SetFormFillEnv(this);
}
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();
// |m_pAnnotHandlerMgr| will try to access |m_pFormFiller| when it cleans
// itself up. Make sure it is deleted 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();
if (m_pInfo && m_pInfo->Release)
m_pInfo->Release(m_pInfo);
}
void CPDFSDK_FormFillEnvironment::InvalidateRect(PerWindowData* pWidgetData,
const CFX_FloatRect& rect) {
auto* pPrivateData = static_cast<CFFL_PrivateData*>(pWidgetData);
CPDFSDK_Widget* widget = pPrivateData->pWidget.Get();
if (!widget)
return;
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_FormFiller* pFormFiller,
const CFX_FloatRect& rect) {
if (!pFormFiller || !m_pInfo || !m_pInfo->FFI_OutputSelectedRect)
return;
auto* pPage = FPDFPageFromIPDFPage(pFormFiller->GetSDKAnnot()->GetPage());
ASSERT(pPage);
CFX_PointF ptA = pFormFiller->PWLtoFFL(CFX_PointF(rect.left, rect.bottom));
CFX_PointF ptB = pFormFiller->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 = IPDFPageFromFPDFPage(GetCurrentPage());
return pPage ? GetPageView(pPage, true) : nullptr;
}
FPDF_PAGE CPDFSDK_FormFillEnvironment::GetCurrentPage() const {
if (m_pInfo && m_pInfo->FFI_GetCurrentPage) {
return m_pInfo->FFI_GetCurrentPage(
m_pInfo, FPDFDocumentFromCPDFDocument(m_pCPDFDoc.Get()));
}
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();
std::vector<uint8_t, FxAllocAllocator<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();
std::vector<uint8_t, FxAllocAllocator<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,
void* response,
int length) {
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, length);
}
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();
std::vector<uint8_t, FxAllocAllocator<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);
return WideString::FromDefANSI(ByteStringView(pBuff));
}
void CPDFSDK_FormFillEnvironment::JS_docmailForm(void* mailData,
int length,
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, 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) {
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();
std::vector<uint8_t, FxAllocAllocator<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);
return WideString::FromDefANSI(ByteStringView(pBuff));
}
void CPDFSDK_FormFillEnvironment::SubmitForm(pdfium::span<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, form_data.data(), form_data.size(),
AsFPDFWideString(&bsUrl));
}
IJS_Runtime* CPDFSDK_FormFillEnvironment::GetIJSRuntime() {
if (!m_pIJSRuntime)
m_pIJSRuntime = IJS_Runtime::Create(this);
return m_pIJSRuntime.get();
}
CPDFSDK_AnnotHandlerMgr* CPDFSDK_FormFillEnvironment::GetAnnotHandlerMgr() {
return m_pAnnotHandlerMgr.get();
}
CPDFSDK_ActionHandler* CPDFSDK_FormFillEnvironment::GetActionHandler() {
if (!m_pActionHandler)
m_pActionHandler = std::make_unique<CPDFSDK_ActionHandler>();
return m_pActionHandler.get();
}
CFFL_InteractiveFormFiller*
CPDFSDK_FormFillEnvironment::GetInteractiveFormFiller() {
if (!m_pFormFiller)
m_pFormFiller = std::make_unique<CFFL_InteractiveFormFiller>(this);
return m_pFormFiller.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(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 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 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,
bool bFocus) {
if (m_pInfo && m_pInfo->FFI_SetTextFieldFocus)
m_pInfo->FFI_SetTextFieldFocus(m_pInfo, focusText, nTextLen, bFocus);
}
void CPDFSDK_FormFillEnvironment::DoURIAction(const char* bsURI,
uint32_t modifiers) {
if (!m_pInfo)
return;
if (m_pInfo->version >= 2 && m_pInfo->FFI_DoURIActionWithKeyboardModifier) {
m_pInfo->FFI_DoURIActionWithKeyboardModifier(m_pInfo, bsURI, modifiers);
return;
}
if (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
int CPDFSDK_FormFillEnvironment::GetPageViewCount() const {
return pdfium::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.Get()));
}
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.Get()), 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.Get()),
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_WIDESTRING));
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()))
KillFocusAnnot(0);
}
}
CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetPageView(
IPDF_Page* pUnderlyingPage,
bool renew) {
auto it = m_PageMap.find(pUnderlyingPage);
if (it != m_PageMap.end())
return it->second.get();
if (!renew)
return nullptr;
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::GetPageViewAtIndex(int nIndex) {
IPDF_Page* pTempPage = GetPage(nIndex);
if (!pTempPage)
return nullptr;
auto it = m_PageMap.find(pTempPage);
return it != m_PageMap.end() ? it->second.get() : nullptr;
}
void CPDFSDK_FormFillEnvironment::ProcJavascriptAction() {
auto name_tree = CPDF_NameTree::Create(m_pCPDFDoc.Get(), "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)));
GetActionHandler()->DoAction_JavaScript(action, name, this);
}
}
bool CPDFSDK_FormFillEnvironment::ProcOpenAction() {
CPDF_Dictionary* pRoot = m_pCPDFDoc->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;
CPDF_Dictionary* pDict = pOpenAction->AsDictionary();
if (!pDict)
return false;
CPDF_Action action(pDict);
GetActionHandler()->DoAction_DocOpen(action, this);
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(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);
}
IPDF_Page* CPDFSDK_FormFillEnvironment::GetPage(int nIndex) {
if (!m_pInfo || !m_pInfo->FFI_GetPage)
return nullptr;
return IPDFPageFromFPDFPage(m_pInfo->FFI_GetPage(
m_pInfo, FPDFDocumentFromCPDFDocument(m_pCPDFDoc.Get()), 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_PageView* pSender,
CPDFSDK_Annot* pAnnot) {
for (const auto& it : m_PageMap) {
CPDFSDK_PageView* pPageView = it.second.get();
if (pPageView != pSender)
pPageView->UpdateView(pAnnot);
}
}
bool CPDFSDK_FormFillEnvironment::SetFocusAnnot(
ObservedPtr<CPDFSDK_Annot>* pAnnot) {
if (m_bBeingDestroyed)
return false;
if (m_pFocusAnnot == *pAnnot)
return true;
if (m_pFocusAnnot && !KillFocusAnnot(0))
return false;
if (!pAnnot->HasObservable())
return false;
if (!(*pAnnot)->GetPageView()->IsValid())
return false;
CPDFSDK_AnnotHandlerMgr* pAnnotHandler = GetAnnotHandlerMgr();
if (m_pFocusAnnot)
return false;
#ifdef PDF_ENABLE_XFA
ObservedPtr<CPDFSDK_Annot> pLastFocusAnnot(m_pFocusAnnot.Get());
if (!pAnnotHandler->Annot_OnChangeFocus(pAnnot, &pLastFocusAnnot))
return false;
// |pAnnot| may be destroyed in |Annot_OnChangeFocus|.
if (!pAnnot->HasObservable())
return false;
#endif // PDF_ENABLE_XFA
if (!pAnnotHandler->Annot_OnSetFocus(pAnnot, 0))
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(uint32_t nFlag) {
if (!m_pFocusAnnot)
return false;
CPDFSDK_AnnotHandlerMgr* pAnnotHandler = GetAnnotHandlerMgr();
ObservedPtr<CPDFSDK_Annot> pFocusAnnot(m_pFocusAnnot.Get());
m_pFocusAnnot.Reset();
#ifdef PDF_ENABLE_XFA
ObservedPtr<CPDFSDK_Annot> pNull;
if (!pAnnotHandler->Annot_OnChangeFocus(&pNull, &pFocusAnnot))
return false;
#endif // PDF_ENABLE_XFA
if (!pAnnotHandler->Annot_OnKillFocus(&pFocusAnnot, nFlag)) {
m_pFocusAnnot.Reset(pFocusAnnot.Get());
return false;
}
// Might have been destroyed by Annot_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) {
OnSetFieldInputFocus(nullptr, 0, 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;
CPDF_Dictionary* annot_dict = (*pAnnot)->GetPDFAnnot()->GetAnnotDict();
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());
}