DLLEXPORT FPDF_PAGE STDCALL FPDFPage_New(FPDF_DOCUMENT document,
int page_index,
double width,
double height) {
CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
if (!pDoc)
return nullptr;
page_index = std::min(std::max(page_index, 0), pDoc->GetPageCount());
CPDF_Dictionary* pPageDict = pDoc->CreateNewPage(page_index);
if (!pPageDict)
return nullptr;
CPDF_Array* pMediaBoxArray = new CPDF_Array;
pMediaBoxArray->Add(new CPDF_Number(0));
pMediaBoxArray->Add(new CPDF_Number(0));
pMediaBoxArray->Add(new CPDF_Number(FX_FLOAT(width)));
pMediaBoxArray->Add(new CPDF_Number(FX_FLOAT(height)));
pPageDict->SetAt("MediaBox", pMediaBoxArray);
pPageDict->SetAt("Rotate", new CPDF_Number(0));
pPageDict->SetAt("Resources", new CPDF_Dictionary);
#ifdef PDF_ENABLE_XFA
CPDFXFA_Page* pPage =
new CPDFXFA_Page((CPDFXFA_Document*)document, page_index);
pPage->LoadPDFPage(pPageDict);
#else // PDF_ENABLE_XFA
CPDF_Page* pPage = new CPDF_Page(pDoc, pPageDict, true);
pPage->ParseContent();
#endif // PDF_ENABLE_XFA
return pPage;
}
CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::GetNextAnnot(CPDFSDK_Annot* pSDKAnnot,
bool bNext) {
#ifdef PDF_ENABLE_XFA
CPDFSDK_PageView* pPageView = pSDKAnnot->GetPageView();
CPDFXFA_Page* pPage = pPageView->GetPDFXFAPage();
if (pPage && !pPage->AsPDFPage()) {
// For xfa annots in XFA pages not backed by PDF pages.
std::unique_ptr<IXFA_WidgetIterator> pWidgetIterator(
pPage->GetXFAPageView()->CreateWidgetIterator(
XFA_TRAVERSEWAY_Tranvalse, XFA_WidgetStatus_Visible |
XFA_WidgetStatus_Viewable |
XFA_WidgetStatus_Focused));
if (!pWidgetIterator)
return nullptr;
if (pWidgetIterator->GetCurrentWidget() != pSDKAnnot->GetXFAWidget())
pWidgetIterator->SetCurrentWidget(pSDKAnnot->GetXFAWidget());
CXFA_FFWidget* hNextFocus = bNext ? pWidgetIterator->MoveToNext()
: pWidgetIterator->MoveToPrevious();
if (!hNextFocus && pSDKAnnot)
hNextFocus = pWidgetIterator->MoveToFirst();
return pPageView->GetAnnotByXFAWidget(hNextFocus);
}
#endif // PDF_ENABLE_XFA
// For PDF annots.
CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pSDKAnnot);
CPDFSDK_AnnotIterator ai(pWidget->GetPageView(), pWidget->GetAnnotSubtype());
return bNext ? ai.GetNextAnnot(pWidget) : ai.GetPrevAnnot(pWidget);
}
CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::GetNextAnnot(CPDFSDK_Annot* pSDKAnnot,
FX_BOOL bNext) {
#ifdef PDF_ENABLE_XFA
CPDFSDK_PageView* pPageView = pSDKAnnot->GetPageView();
CPDFXFA_Page* pPage = pPageView->GetPDFXFAPage();
if (!pPage)
return nullptr;
if (pPage->GetPDFPage()) { // for pdf annots.
CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), pSDKAnnot->GetType(), "");
CPDFSDK_Annot* pNext =
bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
return pNext;
}
// for xfa annots
std::unique_ptr<IXFA_WidgetIterator> pWidgetIterator(
pPage->GetXFAPageView()->CreateWidgetIterator(
XFA_TRAVERSEWAY_Tranvalse, XFA_WidgetStatus_Visible |
XFA_WidgetStatus_Viewable |
XFA_WidgetStatus_Focused));
if (!pWidgetIterator)
return nullptr;
if (pWidgetIterator->GetCurrentWidget() != pSDKAnnot->GetXFAWidget())
pWidgetIterator->SetCurrentWidget(pSDKAnnot->GetXFAWidget());
CXFA_FFWidget* hNextFocus =
bNext ? pWidgetIterator->MoveToNext() : pWidgetIterator->MoveToPrevious();
if (!hNextFocus && pSDKAnnot)
hNextFocus = pWidgetIterator->MoveToFirst();
return pPageView->GetAnnotByXFAWidget(hNextFocus);
#else // PDF_ENABLE_XFA
CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), "Widget", "");
return bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
#endif // PDF_ENABLE_XFA
}
DLLEXPORT FPDF_TEXTPAGE STDCALL FPDFText_LoadPage(FPDF_PAGE page) {
CPDF_Page* pPDFPage = CPDFPageFromFPDFPage(page);
if (!pPDFPage)
return nullptr;
#ifdef PDF_ENABLE_XFA
CPDFXFA_Page* pPage = (CPDFXFA_Page*)page;
CPDFXFA_Document* pDoc = pPage->GetDocument();
CPDF_ViewerPreferences viewRef(pDoc->GetPDFDoc());
#else // PDF_ENABLE_XFA
CPDF_ViewerPreferences viewRef(pPDFPage->m_pDocument);
#endif // PDF_ENABLE_XFA
CPDF_TextPage* textpage = new CPDF_TextPage(
pPDFPage, viewRef.IsDirectionR2L() ? FPDFText_Direction::Right
: FPDFText_Direction::Left);
textpage->ParseTextPage();
return textpage;
}
void CPDFXFA_DocEnvironment::PageViewEvent(CXFA_FFPageView* pPageView,
uint32_t dwFlags) {
CPDFSDK_FormFillEnvironment* pFormFillEnv = m_pContext->GetFormFillEnv();
if (!pFormFillEnv)
return;
if (m_pContext->GetLoadStatus() == FXFA_LOADSTATUS_LOADING ||
m_pContext->GetLoadStatus() == FXFA_LOADSTATUS_CLOSING ||
XFA_PAGEVIEWEVENT_StopLayout != dwFlags)
return;
int nNewCount = m_pContext->GetPageCount();
if (nNewCount == m_pContext->GetOriginalPageCount())
return;
CXFA_FFDocView* pXFADocView = m_pContext->GetXFADocView();
if (!pXFADocView)
return;
for (int iPageIter = 0; iPageIter < m_pContext->GetOriginalPageCount();
iPageIter++) {
CPDFXFA_Page* pPage = (*m_pContext->GetXFAPageList())[iPageIter];
if (!pPage)
continue;
m_pContext->GetFormFillEnv()->RemovePageView(pPage);
pPage->SetXFAPageView(pXFADocView->GetPageView(iPageIter));
}
int flag = (nNewCount < m_pContext->GetOriginalPageCount())
? FXFA_PAGEVIEWEVENT_POSTREMOVED
: FXFA_PAGEVIEWEVENT_POSTADDED;
int count = FXSYS_abs(nNewCount - m_pContext->GetOriginalPageCount());
m_pContext->SetOriginalPageCount(nNewCount);
pFormFillEnv->PageEvent(count, flag);
}
CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::GetNextAnnot(CPDFSDK_Annot* pSDKAnnot,
FX_BOOL bNext) {
#ifdef PDF_ENABLE_XFA
CPDFSDK_PageView* pPageView = pSDKAnnot->GetPageView();
CPDFXFA_Page* pPage = pPageView->GetPDFXFAPage();
if (pPage == NULL)
return NULL;
if (pPage->GetPDFPage()) { // for pdf annots.
CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), pSDKAnnot->GetType(), "");
CPDFSDK_Annot* pNext =
bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
return pNext;
}
// for xfa annots
IXFA_WidgetIterator* pWidgetIterator =
pPage->GetXFAPageView()->CreateWidgetIterator(
XFA_TRAVERSEWAY_Tranvalse, XFA_WIDGETFILTER_Visible |
XFA_WIDGETFILTER_Viewable |
XFA_WIDGETFILTER_Field);
if (pWidgetIterator == NULL)
return NULL;
if (pWidgetIterator->GetCurrentWidget() != pSDKAnnot->GetXFAWidget())
pWidgetIterator->SetCurrentWidget(pSDKAnnot->GetXFAWidget());
IXFA_Widget* hNextFocus = NULL;
hNextFocus =
bNext ? pWidgetIterator->MoveToNext() : pWidgetIterator->MoveToPrevious();
if (hNextFocus == NULL && pSDKAnnot != NULL)
hNextFocus = pWidgetIterator->MoveToFirst();
pWidgetIterator->Release();
return pPageView->GetAnnotByXFAWidget(hNextFocus);
#else // PDF_ENABLE_XFA
CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), "Widget", "");
return bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
#endif // PDF_ENABLE_XFA
}
DLLEXPORT int STDCALL FPDFPage_HasFormFieldAtPoint(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
double page_x,
double page_y) {
if (!hHandle)
return -1;
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (pPage) {
CPDF_InterForm interform(pPage->m_pDocument, FALSE);
CPDF_FormControl* pFormCtrl =
interform.GetControlAtPoint(pPage, static_cast<FX_FLOAT>(page_x),
static_cast<FX_FLOAT>(page_y), nullptr);
if (!pFormCtrl)
return -1;
CPDF_FormField* pFormField = pFormCtrl->GetField();
return pFormField ? pFormField->GetFieldType() : -1;
}
#ifdef PDF_ENABLE_XFA
CPDFXFA_Page* pXFAPage = UnderlyingFromFPDFPage(page);
if (!pXFAPage)
return -1;
IXFA_PageView* pPageView = pXFAPage->GetXFAPageView();
if (!pPageView)
return -1;
IXFA_DocView* pDocView = pPageView->GetDocView();
if (!pDocView)
return -1;
IXFA_WidgetHandler* pWidgetHandler = pDocView->GetWidgetHandler();
if (!pWidgetHandler)
return -1;
std::unique_ptr<IXFA_WidgetIterator, ReleaseDeleter<IXFA_WidgetIterator>>
pWidgetIterator(pPageView->CreateWidgetIterator(
XFA_TRAVERSEWAY_Form,
XFA_WIDGETFILTER_Viewable | XFA_WIDGETFILTER_AllType));
if (!pWidgetIterator)
return -1;
IXFA_Widget* pXFAAnnot = pWidgetIterator->MoveToNext();
while (pXFAAnnot) {
CFX_RectF rcBBox;
pWidgetHandler->GetBBox(pXFAAnnot, rcBBox, 0);
CFX_FloatRect rcWidget(rcBBox.left, rcBBox.top, rcBBox.left + rcBBox.width,
rcBBox.top + rcBBox.height);
rcWidget.left -= 1.0f;
rcWidget.right += 1.0f;
rcWidget.bottom -= 1.0f;
rcWidget.top += 1.0f;
if (rcWidget.Contains(static_cast<FX_FLOAT>(page_x),
static_cast<FX_FLOAT>(page_y))) {
return FPDF_FORMFIELD_XFA;
}
pXFAAnnot = pWidgetIterator->MoveToNext();
}
#endif // PDF_ENABLE_XFA
return -1;
}
