fpdfsdk/ differences with XFA (for didactic purposes only).

fpdfsdk/src/fsdk_annothandler.cpp

 // Copyright 2014 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 <algorithm>
 
+#ifdef PDF_ENABLE_XFA
+#include "../include/fpdfxfa/fpdfxfa_doc.h"
+#include "../include/fpdfxfa/fpdfxfa_util.h"
+#endif
 #include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
 #include "fpdfsdk/include/fsdk_annothandler.h"
 #include "fpdfsdk/include/fsdk_define.h"
 #include "fpdfsdk/include/fsdk_mgr.h"
 
 CPDFSDK_AnnotHandlerMgr::CPDFSDK_AnnotHandlerMgr(CPDFDoc_Environment* pApp) {
   m_pApp = pApp;
 
   CPDFSDK_BFAnnotHandler* pHandler = new CPDFSDK_BFAnnotHandler(m_pApp);
   pHandler->SetFormFiller(m_pApp->GetIFormFiller());
   RegisterAnnotHandler(pHandler);
+#ifdef PDF_ENABLE_XFA
+
+  CPDFSDK_XFAAnnotHandler* pXFAAnnotHandler =
+      new CPDFSDK_XFAAnnotHandler(m_pApp);
+  RegisterAnnotHandler(pXFAAnnotHandler);
+#endif
 }
 
 CPDFSDK_AnnotHandlerMgr::~CPDFSDK_AnnotHandlerMgr() {
   for (int i = 0; i < m_Handlers.GetSize(); i++) {
     IPDFSDK_AnnotHandler* pHandler = m_Handlers.GetAt(i);
     delete pHandler;
   }
   m_Handlers.RemoveAll();
   m_mapType2Handler.clear();
 }
@@ skipping 23 matching lines @@
   ASSERT(pPageView != NULL);
 
   if (IPDFSDK_AnnotHandler* pAnnotHandler =
           GetAnnotHandler(pAnnot->GetSubType())) {
     return pAnnotHandler->NewAnnot(pAnnot, pPageView);
   }
 
   return new CPDFSDK_BAAnnot(pAnnot, pPageView);
 }
 
+#ifdef PDF_ENABLE_XFA
+CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::NewAnnot(IXFA_Widget* pAnnot,
+                                                 CPDFSDK_PageView* pPageView) {
+  ASSERT(pAnnot != NULL);
+  ASSERT(pPageView != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler =
+          GetAnnotHandler(FSDK_XFAWIDGET_TYPENAME)) {
+    return pAnnotHandler->NewAnnot(pAnnot, pPageView);
+  }
+
+  return NULL;
+}
+
+#endif
 void CPDFSDK_AnnotHandlerMgr::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
   ASSERT(pAnnot != NULL);
 
   pAnnot->GetPDFPage();
 
   if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
     pAnnotHandler->OnRelease(pAnnot);
     pAnnotHandler->ReleaseAnnot(pAnnot);
   } else {
     delete (CPDFSDK_Annot*)pAnnot;
@@ skipping 22 matching lines @@
   }
 }
 
 IPDFSDK_AnnotHandler* CPDFSDK_AnnotHandlerMgr::GetAnnotHandler(
     CPDFSDK_Annot* pAnnot) const {
   ASSERT(pAnnot != NULL);
 
   CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
   if (pPDFAnnot)
     return GetAnnotHandler(pPDFAnnot->GetSubType());
+#ifdef PDF_ENABLE_XFA
+  if (pAnnot->GetXFAWidget())
+    return GetAnnotHandler(FSDK_XFAWIDGET_TYPENAME);
+#endif
   return nullptr;
 }
 
 IPDFSDK_AnnotHandler* CPDFSDK_AnnotHandlerMgr::GetAnnotHandler(
     const CFX_ByteString& sType) const {
   auto it = m_mapType2Handler.find(sType);
   return it != m_mapType2Handler.end() ? it->second : nullptr;
 }
 
 void CPDFSDK_AnnotHandlerMgr::Annot_OnDraw(CPDFSDK_PageView* pPageView,
                                            CPDFSDK_Annot* pAnnot,
                                            CFX_RenderDevice* pDevice,
                                            CPDF_Matrix* pUser2Device,
                                            FX_DWORD dwFlags) {
   ASSERT(pAnnot);
 
   if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
     pAnnotHandler->OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
   } else {
+#ifdef PDF_ENABLE_XFA
+    if (pAnnot->IsXFAField())
+      return;
+#endif
     static_cast<CPDFSDK_BAAnnot*>(pAnnot)
         ->DrawAppearance(pDevice, pUser2Device, CPDF_Annot::Normal, nullptr);
   }
 }
 
 FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnLButtonDown(
     CPDFSDK_PageView* pPageView,
     CPDFSDK_Annot* pAnnot,
     FX_DWORD nFlags,
     const CPDF_Point& point) {
@@ skipping 151 matching lines @@
 
 FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnKillFocus(CPDFSDK_Annot* pAnnot,
                                                    FX_DWORD nFlag) {
   ASSERT(pAnnot);
   if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
     return pAnnotHandler->OnKillFocus(pAnnot, nFlag);
 
   return FALSE;
 }
 
+#ifdef PDF_ENABLE_XFA
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnChangeFocus(
+    CPDFSDK_Annot* pSetAnnot,
+    CPDFSDK_Annot* pKillAnnot) {
+  FX_BOOL bXFA = (pSetAnnot && pSetAnnot->GetXFAWidget()) ||
+                 (pKillAnnot && pKillAnnot->GetXFAWidget());
+
+  if (bXFA) {
+    if (IPDFSDK_AnnotHandler* pXFAAnnotHandler =
+            GetAnnotHandler(FSDK_XFAWIDGET_TYPENAME))
+      return pXFAAnnotHandler->OnXFAChangedFocus(pKillAnnot, pSetAnnot);
+  }
+
+  return TRUE;
+}
+
+#endif
 CPDF_Rect CPDFSDK_AnnotHandlerMgr::Annot_OnGetViewBBox(
     CPDFSDK_PageView* pPageView,
     CPDFSDK_Annot* pAnnot) {
   ASSERT(pAnnot);
   if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
     return pAnnotHandler->GetViewBBox(pPageView, pAnnot);
 
   return pAnnot->GetRect();
 }
 
 FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnHitTest(CPDFSDK_PageView* pPageView,
                                                  CPDFSDK_Annot* pAnnot,
                                                  const CPDF_Point& point) {
   ASSERT(pAnnot);
   if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
     if (pAnnotHandler->CanAnswer(pAnnot))
       return pAnnotHandler->HitTest(pPageView, pAnnot, point);
   }
   return FALSE;
 }
 
 CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::GetNextAnnot(CPDFSDK_Annot* pSDKAnnot,
                                                      FX_BOOL bNext) {
+#ifndef PDF_ENABLE_XFA
   CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), "Widget", "");
   return bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
+#else
+  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);
+#endif
 }
 
 FX_BOOL CPDFSDK_BFAnnotHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
   ASSERT(pAnnot->GetType() == "Widget");
   if (pAnnot->GetSubType() == BFFT_SIGNATURE)
     return FALSE;
 
   CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
   if (!pWidget->IsVisible())
     return FALSE;
@@ skipping 23 matching lines @@
 
   CPDFSDK_Widget* pWidget = new CPDFSDK_Widget(pAnnot, pPage, pInterForm);
   pInterForm->AddMap(pCtrl, pWidget);
   CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
   if (pPDFInterForm && pPDFInterForm->NeedConstructAP())
     pWidget->ResetAppearance(nullptr, FALSE);
 
   return pWidget;
 }
 
+#ifdef PDF_ENABLE_XFA
+CPDFSDK_Annot* CPDFSDK_BFAnnotHandler::NewAnnot(IXFA_Widget* hWidget,
+                                                CPDFSDK_PageView* pPage) {
+  return NULL;
+}
+
+#endif
 void CPDFSDK_BFAnnotHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
   ASSERT(pAnnot != NULL);
 
   if (m_pFormFiller)
     m_pFormFiller->OnDelete(pAnnot);
 
   CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
   CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm();
   ASSERT(pInterForm != NULL);
 
@@ skipping 213 matching lines @@
 
   int nFieldType = pWidget->GetFieldType();
   if (nFieldType == FIELDTYPE_TEXTFIELD || nFieldType == FIELDTYPE_COMBOBOX) {
     FX_BOOL bFormated = FALSE;
     CFX_WideString sValue = pWidget->OnFormat(bFormated);
     if (bFormated && nFieldType == FIELDTYPE_COMBOBOX) {
       pWidget->ResetAppearance(sValue.c_str(), FALSE);
     }
   }
 
+#ifdef PDF_ENABLE_XFA
+  CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
+  if (pDoc->GetDocType() == DOCTYPE_STATIC_XFA) {
+    if (!pWidget->IsAppearanceValid() && !pWidget->GetValue().IsEmpty())
+      pWidget->ResetAppearance(FALSE);
+  }
+
+#endif
   if (m_pFormFiller)
     m_pFormFiller->OnLoad(pAnnot);
 }
 
 FX_BOOL CPDFSDK_BFAnnotHandler::OnSetFocus(CPDFSDK_Annot* pAnnot,
                                            FX_DWORD nFlag) {
   ASSERT(pAnnot != NULL);
   CFX_ByteString sSubType = pAnnot->GetSubType();
 
   if (sSubType == BFFT_SIGNATURE) {
@@ skipping 35 matching lines @@
 FX_BOOL CPDFSDK_BFAnnotHandler::HitTest(CPDFSDK_PageView* pPageView,
                                         CPDFSDK_Annot* pAnnot,
                                         const CPDF_Point& point) {
   ASSERT(pPageView);
   ASSERT(pAnnot);
 
   CPDF_Rect rect = GetViewBBox(pPageView, pAnnot);
   return rect.Contains(point.x, point.y);
 }
 
+#ifdef PDF_ENABLE_XFA
+#define FWL_WGTHITTEST_Unknown 0
+#define FWL_WGTHITTEST_Client 1     // arrow
+#define FWL_WGTHITTEST_Titlebar 11  // caption
+#define FWL_WGTHITTEST_HScrollBar 15
+#define FWL_WGTHITTEST_VScrollBar 16
+#define FWL_WGTHITTEST_Border 17
+#define FWL_WGTHITTEST_Edit 19
+#define FWL_WGTHITTEST_HyperLink 20
+
+CPDFSDK_XFAAnnotHandler::CPDFSDK_XFAAnnotHandler(CPDFDoc_Environment* pApp)
+    : m_pApp(pApp) {}
+
+CPDFSDK_Annot* CPDFSDK_XFAAnnotHandler::NewAnnot(IXFA_Widget* pAnnot,
+                                                 CPDFSDK_PageView* pPage) {
+  CPDFSDK_Document* pSDKDoc = m_pApp->GetSDKDocument();
+  CPDFSDK_InterForm* pInterForm = (CPDFSDK_InterForm*)pSDKDoc->GetInterForm();
+  CPDFSDK_XFAWidget* pWidget = new CPDFSDK_XFAWidget(pAnnot, pPage, pInterForm);
+  pInterForm->AddXFAMap(pAnnot, pWidget);
+  return pWidget;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::CanAnswer(CPDFSDK_Annot* pAnnot) {
+  return pAnnot->GetXFAWidget() != NULL;
+}
+
+void CPDFSDK_XFAAnnotHandler::OnDraw(CPDFSDK_PageView* pPageView,
+                                     CPDFSDK_Annot* pAnnot,
+                                     CFX_RenderDevice* pDevice,
+                                     CPDF_Matrix* pUser2Device,
+                                     FX_DWORD dwFlags) {
+#ifdef PDF_ENABLE_XFA
+
+  ASSERT(pPageView != NULL);
+  ASSERT(pAnnot != NULL);
+
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  ASSERT(pSDKDoc != NULL);
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  CFX_Graphics gs;
+  gs.Create(pDevice);
+
+  CFX_Matrix mt;
+  mt = *(CFX_Matrix*)pUser2Device;
+
+  FX_BOOL bIsHighlight = FALSE;
+  if (pSDKDoc->GetFocusAnnot() != pAnnot)
+    bIsHighlight = TRUE;
+
+  pWidgetHandler->RenderWidget(pAnnot->GetXFAWidget(), &gs, &mt, bIsHighlight);
+
+  // to do highlight and shadow
+#endif  // PDF_ENABLE_XFA
+}
+
+void CPDFSDK_XFAAnnotHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot != NULL);
+
+  CPDFSDK_XFAWidget* pWidget = (CPDFSDK_XFAWidget*)pAnnot;
+  CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm();
+  ASSERT(pInterForm != NULL);
+
+  pInterForm->RemoveXFAMap(pWidget->GetXFAWidget());
+
+  delete pWidget;
+}
+
+CPDF_Rect CPDFSDK_XFAAnnotHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
+                                               CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot != NULL);
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  CFX_RectF rcBBox;
+#ifdef PDF_ENABLE_XFA
+  XFA_ELEMENT eType =
+      pWidgetHandler->GetDataAcc(pAnnot->GetXFAWidget())->GetUIType();
+  if (eType == XFA_ELEMENT_Signature)
+    pWidgetHandler->GetBBox(pAnnot->GetXFAWidget(), rcBBox,
+                            XFA_WIDGETSTATUS_Visible, TRUE);
+  else
+#endif
+    pWidgetHandler->GetBBox(pAnnot->GetXFAWidget(), 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;
+
+  return rcWidget;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::HitTest(CPDFSDK_PageView* pPageView,
+                                         CPDFSDK_Annot* pAnnot,
+                                         const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  if (!pSDKDoc)
+    return FALSE;
+
+  CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
+  if (!pDoc)
+    return FALSE;
+
+  IXFA_DocView* pDocView = pDoc->GetXFADocView();
+  if (!pDocView)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = pDocView->GetWidgetHandler();
+  if (!pWidgetHandler)
+    return FALSE;
+
+  FX_DWORD dwHitTest =
+      pWidgetHandler->OnHitTest(pAnnot->GetXFAWidget(), point.x, point.y);
+  return (dwHitTest != FWL_WGTHITTEST_Unknown);
+}
+
+void CPDFSDK_XFAAnnotHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
+                                           CPDFSDK_Annot* pAnnot,
+                                           FX_DWORD nFlag) {
+  if (!pPageView || !pAnnot)
+    return;
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  pWidgetHandler->OnMouseEnter(pAnnot->GetXFAWidget());
+}
+
+void CPDFSDK_XFAAnnotHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
+                                          CPDFSDK_Annot* pAnnot,
+                                          FX_DWORD nFlag) {
+  if (!pPageView || !pAnnot)
+    return;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  pWidgetHandler->OnMouseExit(pAnnot->GetXFAWidget());
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
+                                               CPDFSDK_Annot* pAnnot,
+                                               FX_DWORD nFlags,
+                                               const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnLButtonDown(pAnnot->GetXFAWidget(),
+                                       GetFWLFlags(nFlags), point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             FX_DWORD nFlags,
+                                             const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnLButtonUp(pAnnot->GetXFAWidget(),
+                                     GetFWLFlags(nFlags), point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot,
+                                                 FX_DWORD nFlags,
+                                                 const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnLButtonDblClk(pAnnot->GetXFAWidget(),
+                                         GetFWLFlags(nFlags), point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             FX_DWORD nFlags,
+                                             const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnMouseMove(pAnnot->GetXFAWidget(),
+                                     GetFWLFlags(nFlags), point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot,
+                                              FX_DWORD nFlags,
+                                              short zDelta,
+                                              const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnMouseWheel(
+      pAnnot->GetXFAWidget(), GetFWLFlags(nFlags), zDelta, point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
+                                               CPDFSDK_Annot* pAnnot,
+                                               FX_DWORD nFlags,
+                                               const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnRButtonDown(pAnnot->GetXFAWidget(),
+                                       GetFWLFlags(nFlags), point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             FX_DWORD nFlags,
+                                             const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnRButtonUp(pAnnot->GetXFAWidget(),
+                                     GetFWLFlags(nFlags), point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot,
+                                                 FX_DWORD nFlags,
+                                                 const CPDF_Point& point) {
+  if (!pPageView || !pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnRButtonDblClk(pAnnot->GetXFAWidget(),
+                                         GetFWLFlags(nFlags), point.x, point.y);
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnChar(CPDFSDK_Annot* pAnnot,
+                                        FX_DWORD nChar,
+                                        FX_DWORD nFlags) {
+  if (!pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnChar(pAnnot->GetXFAWidget(), nChar,
+                                GetFWLFlags(nFlags));
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
+                                           int nKeyCode,
+                                           int nFlag) {
+  if (!pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnKeyDown(pAnnot->GetXFAWidget(), nKeyCode,
+                                   GetFWLFlags(nFlag));
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
+                                         int nKeyCode,
+                                         int nFlag) {
+  if (!pAnnot)
+    return FALSE;
+
+  IXFA_WidgetHandler* pWidgetHandler = GetXFAWidgetHandler(pAnnot);
+  ASSERT(pWidgetHandler != NULL);
+
+  FX_BOOL bRet = FALSE;
+  bRet = pWidgetHandler->OnKeyUp(pAnnot->GetXFAWidget(), nKeyCode,
+                                 GetFWLFlags(nFlag));
+
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnSetFocus(CPDFSDK_Annot* pAnnot,
+                                            FX_DWORD nFlag) {
+  return TRUE;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnKillFocus(CPDFSDK_Annot* pAnnot,
+                                             FX_DWORD nFlag) {
+  return TRUE;
+}
+
+FX_BOOL CPDFSDK_XFAAnnotHandler::OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
+                                                   CPDFSDK_Annot* pNewAnnot) {
+  IXFA_WidgetHandler* pWidgetHandler = NULL;
+
+  if (pOldAnnot)
+    pWidgetHandler = GetXFAWidgetHandler(pOldAnnot);
+  else if (pNewAnnot)
+    pWidgetHandler = GetXFAWidgetHandler(pNewAnnot);
+
+  if (pWidgetHandler) {
+    FX_BOOL bRet = TRUE;
+    IXFA_Widget* hWidget = pNewAnnot ? pNewAnnot->GetXFAWidget() : NULL;
+    if (hWidget) {
+      IXFA_PageView* pXFAPageView = pWidgetHandler->GetPageView(hWidget);
+      if (pXFAPageView) {
+        bRet = pXFAPageView->GetDocView()->SetFocus(hWidget);
+        if (pXFAPageView->GetDocView()->GetFocusWidget() == hWidget)
+          bRet = TRUE;
+      }
+    }
+    return bRet;
+  }
+
+  return TRUE;
+}
+
+IXFA_WidgetHandler* CPDFSDK_XFAAnnotHandler::GetXFAWidgetHandler(
+    CPDFSDK_Annot* pAnnot) {
+  if (!pAnnot)
+    return NULL;
+
+  CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
+  if (!pPageView)
+    return NULL;
+
+  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
+  if (!pSDKDoc)
+    return NULL;
+
+  CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
+  if (!pDoc)
+    return NULL;
+
+  IXFA_DocView* pDocView = pDoc->GetXFADocView();
+  if (!pDocView)
+    return NULL;
+
+  return pDocView->GetWidgetHandler();
+}
+
+#define FWL_KEYFLAG_Ctrl (1 << 0)
+#define FWL_KEYFLAG_Alt (1 << 1)
+#define FWL_KEYFLAG_Shift (1 << 2)
+#define FWL_KEYFLAG_LButton (1 << 3)
+#define FWL_KEYFLAG_RButton (1 << 4)
+#define FWL_KEYFLAG_MButton (1 << 5)
+
+FX_DWORD CPDFSDK_XFAAnnotHandler::GetFWLFlags(FX_DWORD dwFlag) {
+  FX_DWORD dwFWLFlag = 0;
+
+  if (dwFlag & FWL_EVENTFLAG_ControlKey)
+    dwFWLFlag |= FWL_KEYFLAG_Ctrl;
+  if (dwFlag & FWL_EVENTFLAG_LeftButtonDown)
+    dwFWLFlag |= FWL_KEYFLAG_LButton;
+  if (dwFlag & FWL_EVENTFLAG_MiddleButtonDown)
+    dwFWLFlag |= FWL_KEYFLAG_MButton;
+  if (dwFlag & FWL_EVENTFLAG_RightButtonDown)
+    dwFWLFlag |= FWL_KEYFLAG_RButton;
+  if (dwFlag & FWL_EVENTFLAG_ShiftKey)
+    dwFWLFlag |= FWL_KEYFLAG_Shift;
+  if (dwFlag & FWL_EVENTFLAG_AltKey)
+    dwFWLFlag |= FWL_KEYFLAG_Alt;
+
+  return dwFWLFlag;
+}
+
+#endif
 CPDFSDK_AnnotIterator::CPDFSDK_AnnotIterator(CPDFSDK_PageView* pPageView,
                                              bool bReverse)
     : m_bReverse(bReverse), m_pos(0) {
   const std::vector<CPDFSDK_Annot*>& annots = pPageView->GetAnnotList();
   m_iteratorAnnotList.insert(m_iteratorAnnotList.begin(), annots.rbegin(),
                              annots.rend());
   std::stable_sort(m_iteratorAnnotList.begin(), m_iteratorAnnotList.end(),
                    [](CPDFSDK_Annot* p1, CPDFSDK_Annot* p2) {
                      return p1->GetLayoutOrder() < p2->GetLayoutOrder();
                    });
@@ skipping 22 matching lines @@
 
 CPDFSDK_Annot* CPDFSDK_AnnotIterator::PrevAnnot() {
   if (m_pos < m_iteratorAnnotList.size())
     return m_iteratorAnnotList[m_iteratorAnnotList.size() - ++m_pos];
   return nullptr;
 }
 
 CPDFSDK_Annot* CPDFSDK_AnnotIterator::Next() {
   return m_bReverse ? PrevAnnot() : NextAnnot();
 }