CPDF_Dictionary* CPDF_DataAvail::GetPage(int index) {
if (!m_pDocument || index < 0 || index >= GetPageCount())
return nullptr;
CPDF_Dictionary* page = m_pDocument->GetPage(index);
if (page)
return page;
if (!m_pLinearized || !m_pHintTables)
return nullptr;
if (index == static_cast<int>(m_pLinearized->GetFirstPageNo()))
return nullptr;
FX_FILESIZE szPageStartPos = 0;
FX_FILESIZE szPageLength = 0;
uint32_t dwObjNum = 0;
const bool bPagePosGot = m_pHintTables->GetPagePos(index, &szPageStartPos,
&szPageLength, &dwObjNum);
if (!bPagePosGot || !dwObjNum)
return nullptr;
// We should say to the document, which object is the page.
m_pDocument->SetPageObjNum(index, dwObjNum);
// Page object already can be parsed in document.
if (!m_pDocument->GetIndirectObject(dwObjNum)) {
m_syntaxParser.InitParser(
m_pFileRead, pdfium::base::checked_cast<uint32_t>(szPageStartPos));
m_pDocument->ReplaceIndirectObjectIfHigherGeneration(
dwObjNum, ParseIndirectObjectAt(0, dwObjNum, m_pDocument));
}
const bool is_page_valid = ValidatePage(index);
(void)is_page_valid;
ASSERT(is_page_valid);
return m_pDocument->GetPage(index);
}
CPDF_DataAvail::DocAvailStatus CPDF_DataAvail::CheckLinearizedFirstPage(
uint32_t dwPage,
DownloadHints* pHints) {
if (!m_bAnnotsLoad) {
if (!CheckPageAnnots(dwPage, pHints))
return DataNotAvailable;
m_bAnnotsLoad = true;
}
const bool is_page_valid = ValidatePage(dwPage);
(void)is_page_valid;
ASSERT(is_page_valid);
return DataAvailable;
}
CPDF_DataAvail::DocAvailStatus CPDF_DataAvail::IsPageAvail(
uint32_t dwPage,
DownloadHints* pHints) {
if (!m_pDocument)
return DataError;
if (IsFirstCheck(dwPage)) {
m_bCurPageDictLoadOK = false;
m_bPageLoadedOK = false;
m_bAnnotsLoad = false;
m_bNeedDownLoadResource = false;
m_objs_array.clear();
m_ObjectSet.clear();
}
if (pdfium::ContainsKey(m_pagesLoadState, dwPage))
return DataAvailable;
if (m_pLinearized) {
if (dwPage == m_pLinearized->GetFirstPageNo()) {
DocAvailStatus nRet = CheckLinearizedFirstPage(dwPage, pHints);
if (nRet == DataAvailable)
m_pagesLoadState.insert(dwPage);
return nRet;
}
DocAvailStatus nResult = CheckLinearizedData(pHints);
if (nResult != DataAvailable)
return nResult;
if (m_pHintTables) {
nResult = m_pHintTables->CheckPage(dwPage, pHints);
if (nResult != DataAvailable)
return nResult;
m_pagesLoadState.insert(dwPage);
return GetPage(dwPage) ? DataAvailable : DataError;
}
if (m_bMainXRefLoadedOK) {
if (m_bTotalLoadPageTree) {
if (!LoadPages(pHints))
return DataNotAvailable;
} else {
if (!m_bCurPageDictLoadOK && !CheckPage(dwPage, pHints))
return DataNotAvailable;
}
} else {
if (!LoadAllFile(pHints))
return DataNotAvailable;
m_pDocument->GetParser()->RebuildCrossRef();
ResetFirstCheck(dwPage);
return DataAvailable;
}
} else {
if (!m_bTotalLoadPageTree && !m_bCurPageDictLoadOK &&
!CheckPage(dwPage, pHints)) {
return DataNotAvailable;
}
}
if (m_bHaveAcroForm && !m_bAcroFormLoad) {
if (!CheckAcroFormSubObject(pHints))
return DataNotAvailable;
m_bAcroFormLoad = true;
}
if (!m_bPageLoadedOK) {
if (m_objs_array.empty()) {
m_ObjectSet.clear();
FX_SAFE_INT32 safePage = pdfium::base::checked_cast<int32_t>(dwPage);
m_pPageDict = m_pDocument->GetPage(safePage.ValueOrDie());
if (!m_pPageDict) {
ResetFirstCheck(dwPage);
// This is XFA page.
return DataAvailable;
}
std::vector<CPDF_Object*> obj_array;
obj_array.push_back(m_pPageDict);
if (!AreObjectsAvailable(obj_array, true, pHints, m_objs_array))
return DataNotAvailable;
m_objs_array.clear();
} else {
std::vector<CPDF_Object*> new_objs_array;
if (!AreObjectsAvailable(m_objs_array, false, pHints, new_objs_array)) {
m_objs_array = new_objs_array;
return DataNotAvailable;
}
}
m_objs_array.clear();
m_bPageLoadedOK = true;
}
if (!m_bAnnotsLoad) {
if (!CheckPageAnnots(dwPage, pHints))
return DataNotAvailable;
m_bAnnotsLoad = true;
}
if (m_pPageDict && !m_bNeedDownLoadResource) {
m_pPageResource = m_pPageDict->GetObjectFor("Resources");
m_bNeedDownLoadResource =
m_pPageResource || HaveResourceAncestor(m_pPageDict);
}
if (m_bNeedDownLoadResource) {
if (!CheckResources(pHints))
return DataNotAvailable;
m_bNeedDownLoadResource = false;
}
m_bPageLoadedOK = false;
m_bAnnotsLoad = false;
m_bCurPageDictLoadOK = false;
ResetFirstCheck(dwPage);
m_pagesLoadState.insert(dwPage);
const bool is_page_valid = ValidatePage(dwPage);
(void)is_page_valid;
ASSERT(is_page_valid);
return DataAvailable;
}
void
TSetupDlg::OnCommand (DWORD dwCmd, LPARAM lParam)
{
m_dwNotifyCode = dwCmd;
switch (dwCmd)
{
/* Page 1 */
case MAKELPARAM (IDC_DSN, EN_CHANGE):
ValidatePage ();
break;
case MAKELPARAM (IDC_SERVER, CBN_DROPDOWN):
m_SERVER.OnCbnDropDown ();
break;
case MAKELPARAM (IDC_SERVER, CBN_CLOSEUP):
m_SERVER.OnCbnCloseUp ();
break;
case MAKELPARAM (IDC_SERVER, CBN_EDITCHANGE):
m_SERVER.OnCbnEditChange ();
ValidatePage ();
break;
/* Page 2 */
case MAKELPARAM (IDC_AUTHMETHOD, CBN_SELCHANGE):
SetAuthMethod ();
break;
case MAKELPARAM (IDC_USEUID, BN_CLICKED):
SetUseUID ();
ValidatePage ();
break;
case MAKELPARAM (IDC_UID, EN_CHANGE):
ValidatePage ();
break;
case MAKELPARAM (IDC_BROWSEUIDCERT, BN_CLICKED):
if (BrowseForFile (m_hInstance, m_UID, IDS_PKCS12BROWSE))
m_PWD.SetFocus ();
break;
case MAKELPARAM (IDC_USESERVERCERT, BN_CLICKED):
SetUseServerCert (TRUE);
ValidatePage ();
break;
case MAKELPARAM (IDC_SERVERCERT, EN_CHANGE):
ValidatePage ();
break;
case MAKELPARAM (IDC_BROWSESERVERCERT, BN_CLICKED):
BrowseForFile (m_hInstance, m_SERVERCERT, IDS_X509BROWSE);
break;
/* Page 3 */
case MAKELPARAM (IDC_USEDEFAULTDB, BN_CLICKED):
SetUseDefaultDB ();
ValidatePage ();
break;
case MAKELPARAM (IDC_USEDEFAULTIL, BN_CLICKED):
SetUseDefaultIL ();
ValidatePage ();
break;
case MAKELPARAM (IDC_USEDEFAULTCS, BN_CLICKED):
SetUseDefaultCS ();
ValidatePage ();
break;
case MAKELPARAM (IDC_DEFAULTDB, CBN_SELCHANGE):
case MAKELPARAM (IDC_DEFAULTDB, CBN_EDITCHANGE):
case MAKELPARAM (IDC_DEFAULTCS, CBN_SELCHANGE):
case MAKELPARAM (IDC_DEFAULTCS, CBN_EDITCHANGE):
case MAKELPARAM (IDC_DEFAULTIL, CBN_SELCHANGE):
case MAKELPARAM (IDC_DEFAULTIL, CBN_EDITCHANGE):
ValidatePage ();
break;
/* Global buttons */
case MAKELPARAM (IDC_BACKBTN, BN_CLICKED):
ChangePage (m_iCurPage - 1);
break;
case MAKELPARAM (IDC_NEXTBTN, BN_CLICKED):
if (m_iCurPage == 0)
FillAuthMethods ();
else if (m_iCurPage == 1)
{
FillIsolationLevels ();
if (!FillDBCombos ())
{
SetFocus (GetDlgItem (m_hPageWnd[1], IDC_PWD));
break;
}
}
if (m_iCurPage == m_iNumPages - 1)
{
SaveToProps ();
EndDialog (m_hWnd, IDOK);
}
else
ChangePage (m_iCurPage + 1);
break;
case MAKELPARAM (IDCANCEL, BN_CLICKED):
EndDialog (m_hWnd, dwCmd);
break;
}
}
