Fix two issues shown by bug 489995
[pdfium.git] / fpdfsdk / src / fsdk_annothandler.cpp
index bc0f047..bb999e1 100644 (file)
@@ -1,7 +1,7 @@
 // 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 "../include/fsdk_define.h"
 #include "../include/formfiller/FFL_FormFiller.h"
 #include "../include/fsdk_annothandler.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);
+}
 
-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);
-}
-
-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.RemoveAll();
-}
-
-void   CPDFSDK_AnnotHandlerMgr::RegisterAnnotHandler(IPDFSDK_AnnotHandler* pAnnotHandler)
-{
-       ASSERT(pAnnotHandler != NULL);
-       
-       ASSERT(GetAnnotHandler(pAnnotHandler->GetType()) == NULL);
-       
-       m_Handlers.Add(pAnnotHandler);
-       m_mapType2Handler.SetAt(pAnnotHandler->GetType(), (void*)pAnnotHandler);
-}
-
-void CPDFSDK_AnnotHandlerMgr::UnRegisterAnnotHandler(IPDFSDK_AnnotHandler* pAnnotHandler)
-{
-       ASSERT(pAnnotHandler != NULL);
-       
-       m_mapType2Handler.RemoveKey(pAnnotHandler->GetType());
-       
-       for (int i=0, sz=m_Handlers.GetSize(); i<sz; i++)
-       {
-               if (m_Handlers.GetAt(i) == pAnnotHandler)
-               {
-                       m_Handlers.RemoveAt(i);
-                       break;
-               }
-       }
-}
-
-CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::NewAnnot(CPDF_Annot * pAnnot, CPDFSDK_PageView *pPageView)
-{
-       ASSERT(pAnnot != NULL);
-       ASSERT(pPageView != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot->GetSubType()))
-       {
-               return pAnnotHandler->NewAnnot(pAnnot, pPageView);
-       }
-       
-       return new CPDFSDK_Annot(pAnnot, pPageView);
-}
-
-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;
-       }
-}
-
-void CPDFSDK_AnnotHandlerMgr::Annot_OnCreate(CPDFSDK_Annot* pAnnot)
-{
-       ASSERT(pAnnot != NULL);
-       
-       CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
-       ASSERT(pPDFAnnot != NULL);
-       ASSERT(pPDFAnnot->m_pAnnotDict != NULL);
-       
-       CPDFSDK_DateTime curTime;
-       pPDFAnnot->m_pAnnotDict->SetAtString("M", curTime.ToPDFDateTimeString());
-       pPDFAnnot->m_pAnnotDict->SetAtNumber("F", (int)0);      
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               pAnnotHandler->OnCreate(pAnnot);
-       }
-}
-
-void CPDFSDK_AnnotHandlerMgr::Annot_OnLoad(CPDFSDK_Annot* pAnnot)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               pAnnotHandler->OnLoad(pAnnot);
-       }
-}
-
-IPDFSDK_AnnotHandler* CPDFSDK_AnnotHandlerMgr::GetAnnotHandler(CPDFSDK_Annot* pAnnot) const
-{
-       ASSERT(pAnnot != NULL);
-       
-       CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
-       ASSERT(pPDFAnnot != NULL);
-       
-       return GetAnnotHandler(pPDFAnnot->GetSubType());
-}
-
-IPDFSDK_AnnotHandler* CPDFSDK_AnnotHandlerMgr::GetAnnotHandler(const CFX_ByteString& sType) const
-{
-       void* pRet = NULL;
-       m_mapType2Handler.Lookup(sType, pRet);  
-       return (IPDFSDK_AnnotHandler*)pRet;
-}
-
-void CPDFSDK_AnnotHandlerMgr::Annot_OnDraw(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot, CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device,FX_DWORD dwFlags)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               pAnnotHandler->OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
-       }
-       else
-       {
-               pAnnot->DrawAppearance(pDevice, pUser2Device, CPDF_Annot::Normal, NULL);
-       }
-}
-
-
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnLButtonDown(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnLButtonDown(pPageView, pAnnot, nFlags, point);
-       }
-       return FALSE;
-}
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnLButtonUp(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
- {
-       ASSERT(pAnnot != NULL);
-
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnLButtonUp(pPageView, pAnnot, nFlags, point);
-       }
-       return FALSE;
- }
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnLButtonDblClk(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
-       }
-       return FALSE;
-}
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnMouseMove(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnMouseMove(pPageView, pAnnot, nFlags, point);
-       }
-       return FALSE;
-}
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnMouseWheel(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, short zDelta, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnMouseWheel(pPageView, pAnnot,nFlags,zDelta, point);
-       }
-       return FALSE;
-}
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnRButtonDown(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnRButtonDown(pPageView, pAnnot, nFlags, point);
-       }
-       return FALSE;
-}
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnRButtonUp(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnRButtonUp(pPageView, pAnnot, nFlags, point);
-       }
-       return FALSE;
-}
-
-void CPDFSDK_AnnotHandlerMgr::Annot_OnMouseEnter(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlag)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               pAnnotHandler->OnMouseEnter(pPageView, pAnnot, nFlag);
-       }
-       return ;
-}
-
-void CPDFSDK_AnnotHandlerMgr::Annot_OnMouseExit(CPDFSDK_PageView * pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlag)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               pAnnotHandler->OnMouseExit(pPageView, pAnnot, nFlag);
-       }
-       return;
-}
-
-FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnChar(CPDFSDK_Annot* pAnnot, FX_DWORD nChar, FX_DWORD nFlags)
-{
-
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnChar(pAnnot,nChar, nFlags);
-       }
-       return FALSE;
-
-}
-
-FX_BOOL                        CPDFSDK_AnnotHandlerMgr::Annot_OnKeyDown(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag)
-{
-
-       if (!m_pApp->FFI_IsCTRLKeyDown(nFlag) && !m_pApp->FFI_IsALTKeyDown(nFlag))
-       {
-               CPDFSDK_PageView* pPage = pAnnot->GetPageView();
-               CPDFSDK_Annot* pFocusAnnot = pPage->GetFocusAnnot();
-               if (pFocusAnnot && (nKeyCode == FWL_VKEY_Tab))
-               {
-                       CPDFSDK_Annot* pNext = GetNextAnnot(pFocusAnnot, !m_pApp->FFI_IsSHIFTKeyDown(nFlag));
-
-                       if(pNext && pNext != pFocusAnnot)
-                       {
-                               CPDFSDK_Document* pDocument = pPage->GetSDKDocument();
-                               pDocument->SetFocusAnnot(pNext);
-                               return TRUE;
-                       }
-               }
-       }
-
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               return pAnnotHandler->OnKeyDown(pAnnot,nKeyCode, nFlag);
-       }
-       return FALSE;
-}
-FX_BOOL                        CPDFSDK_AnnotHandlerMgr::Annot_OnKeyUp(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag)
-{
-       return FALSE;
-}
-
-FX_BOOL                        CPDFSDK_AnnotHandlerMgr::Annot_OnSetFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag)
-{
-       ASSERT(pAnnot != NULL);
-
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               if (pAnnotHandler->OnSetFocus(pAnnot, nFlag))
-               {
-                       CPDFSDK_PageView* pPage = pAnnot->GetPageView();
-                       ASSERT(pPage != NULL);
-
-                       pPage->GetSDKDocument();
-       //              pDocument->SetTopmostAnnot(pAnnot);
-
-                       return TRUE;
-               }
-               else
-               {
-                       return FALSE;
-               }
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL                        CPDFSDK_AnnotHandlerMgr::Annot_OnKillFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag)
-{
-       ASSERT(pAnnot != NULL);
-       
-       if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot))
-       {
-               if (pAnnotHandler->OnKillFocus(pAnnot, nFlag))
-               {       
-                       return TRUE;
-               }
-               else
-                       return FALSE;
-       }
-       
-       return FALSE;
-}
-
-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)
-{
-        CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), "Widget", "");
-
-        CPDFSDK_Annot* pNext = bNext ? 
-                ai.GetNextAnnot(pSDKAnnot) : 
-               ai.GetPrevAnnot(pSDKAnnot);
-       
-               return pNext;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::CanAnswer(CPDFSDK_Annot* pAnnot)
-{
-       ASSERT(pAnnot);
-       ASSERT(pAnnot->GetType() == "Widget");
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
-               if (!pWidget->IsVisible()) return FALSE;
-
-               int nFieldFlags = pWidget->GetFieldFlags();
-               if ((nFieldFlags & FIELDFLAG_READONLY) == FIELDFLAG_READONLY) return FALSE;
-               if (pWidget->GetFieldType() == FIELDTYPE_PUSHBUTTON)
-                       return TRUE;
-               else
-               {
-                       CPDF_Page* pPage = pWidget->GetPDFPage();
-                       ASSERT(pPage != NULL);
-                       
-                       CPDF_Document* pDocument = pPage->m_pDocument;
-                       ASSERT(pDocument != NULL);
-                       
-                       FX_DWORD dwPermissions = pDocument->GetUserPermissions();
-                       return (dwPermissions&FPDFPERM_FILL_FORM) || 
-                               (dwPermissions&FPDFPERM_ANNOT_FORM) || 
-                       (dwPermissions&FPDFPERM_ANNOT_FORM);
-               }
-       }
-
-       return FALSE;
-}
-
-CPDFSDK_Annot*         CPDFSDK_BFAnnotHandler::NewAnnot(CPDF_Annot* pAnnot, CPDFSDK_PageView* pPage)
-{
-       ASSERT(pPage != NULL);
-       pPage->GetPDFDocument();
-       
-       CPDFSDK_Document* pSDKDoc  = m_pApp->GetCurrentDoc();
-       ASSERT(pSDKDoc);
-       CPDFSDK_InterForm* pInterForm = (CPDFSDK_InterForm*)pSDKDoc->GetInterForm();
-       ASSERT(pInterForm != NULL);
-       
-       CPDFSDK_Widget* pWidget = NULL;
-       if (CPDF_FormControl* pCtrl = CPDFSDK_Widget::GetFormControl(pInterForm->GetInterForm(), pAnnot->m_pAnnotDict))
-       {
-               pWidget = new CPDFSDK_Widget(pAnnot, pPage, pInterForm);
-               pInterForm->AddMap(pCtrl, pWidget);
-               CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
-               if(pPDFInterForm && pPDFInterForm->NeedConstructAP())
-                       pWidget->ResetAppearance(NULL,FALSE);
-       }
-       
-       return pWidget;
-}
-
-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);
-       
-       CPDF_FormControl* pCtrol = pWidget->GetFormControl();
-       pInterForm->RemoveMap(pCtrol);
-       
-
-       delete pWidget;
-}
-
-
-void CPDFSDK_BFAnnotHandler::OnDraw(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device,  FX_DWORD dwFlags)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-               pAnnot->DrawAppearance(pDevice, pUser2Device, CPDF_Annot::Normal, NULL);
-       }
-       else
-       {
-               if (m_pFormFiller)
-               {
-                       m_pFormFiller->OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
-               }
-       }
-}
-
-void CPDFSDK_BFAnnotHandler::OnMouseEnter(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlag) 
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                        m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag);
-       }
-       
-
-}
-void CPDFSDK_BFAnnotHandler::OnMouseExit(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlag) 
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                        m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag);
-       }
-       
-}
-FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonDown(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point);
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonUp(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point);
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonDblClk(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnMouseMove(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{      
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point);
-       }
-
-       return FALSE;
-
-}
-
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnMouseWheel(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, short zDelta, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta,point);
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnRButtonDown(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point);
-       }
-       
-       return FALSE;
-}
-FX_BOOL CPDFSDK_BFAnnotHandler::OnRButtonUp(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot, FX_DWORD nFlags, const CPDF_Point& point)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point);
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnChar(CPDFSDK_Annot* pAnnot, FX_DWORD nChar, FX_DWORD nFlags)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnChar(pAnnot,nChar, nFlags);
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnKeyDown(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnKeyDown(pAnnot,nKeyCode, nFlag);
-       }
-       
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_BFAnnotHandler::OnKeyUp(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag)
-{
-
-       return FALSE;
-}
-void   CPDFSDK_BFAnnotHandler::OnCreate(CPDFSDK_Annot* pAnnot) 
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       m_pFormFiller->OnCreate(pAnnot);
-       }
-}
-
-void CPDFSDK_BFAnnotHandler::OnLoad(CPDFSDK_Annot* pAnnot)
-{
-       ASSERT(pAnnot != NULL);
-       
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
-               if (!pWidget->IsAppearanceValid())
-                       pWidget->ResetAppearance(NULL, FALSE);
-
-               int nFieldType = pWidget->GetFieldType();
-               if (nFieldType == FIELDTYPE_TEXTFIELD || nFieldType == FIELDTYPE_COMBOBOX)
-               {
-                       FX_BOOL bFormated = FALSE;
-                       CFX_WideString sValue = pWidget->OnFormat(0, bFormated);
-                       if (bFormated && nFieldType == FIELDTYPE_COMBOBOX)
-                       {
-                               pWidget->ResetAppearance(sValue.c_str(), FALSE);
-                       }
-               }
-
-               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)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnSetFocus(pAnnot,nFlag);
-       }
-       
-       return TRUE;
-}
-FX_BOOL        CPDFSDK_BFAnnotHandler::OnKillFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->OnKillFocus(pAnnot,nFlag);
-       }
-       
-       return TRUE;
-}
-
-CPDF_Rect CPDFSDK_BFAnnotHandler::GetViewBBox(CPDFSDK_PageView *pPageView, CPDFSDK_Annot* pAnnot)
-{
-       ASSERT(pAnnot != NULL);
-       CFX_ByteString sSubType = pAnnot->GetSubType();
-       
-       if (sSubType == BFFT_SIGNATURE)
-       {
-       }
-       else
-       {
-               if (m_pFormFiller)
-                       return m_pFormFiller->GetViewBBox(pPageView, pAnnot);
-
-       }
-       
-       return CPDF_Rect(0,0,0,0);
-}
-
-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);
-}
-
-//CReader_AnnotIteratorEx
-
-CPDFSDK_AnnotIterator::CPDFSDK_AnnotIterator(CPDFSDK_PageView * pPageView,FX_BOOL bReverse,
-                                                                                                FX_BOOL bIgnoreTopmost/*=FALSE*/,
-                                                                                                FX_BOOL bCircle/*=FALSE*/,
-                                                                                                CFX_PtrArray *pList/*=NULL*/)
-{
-       ASSERT(pPageView);
-       m_bReverse=bReverse;
-       m_bIgnoreTopmost= bIgnoreTopmost;
-       m_bCircle=bCircle;
-       m_pIteratorAnnotList.RemoveAll();
-       InitIteratorAnnotList(pPageView,pList);
-}
-
-CPDFSDK_Annot* CPDFSDK_AnnotIterator::NextAnnot (const CPDFSDK_Annot* pCurrent) 
-{
-       
-       int index=-1;
-       int nCount=this->m_pIteratorAnnotList.GetSize();
-       if(pCurrent){
-               for(int i=0;i<nCount;i++){
-                       CPDFSDK_Annot * pReaderAnnot= (CPDFSDK_Annot *)m_pIteratorAnnotList.GetAt(i);
-                       if(pReaderAnnot ==pCurrent){                    
-                               index=i;
-                               break;
-                       }                       
-               }
-       }       
-       return NextAnnot(index);
-}
-CPDFSDK_Annot* CPDFSDK_AnnotIterator::PrevAnnot (const CPDFSDK_Annot*pCurrent)
-{
-       
-       int index=-1;
-       int nCount=this->m_pIteratorAnnotList.GetSize();
-       if(pCurrent){
-               for(int i=0;i<nCount;i++){
-                       CPDFSDK_Annot * pReaderAnnot= (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(i);
-                       if(pReaderAnnot ==pCurrent){                    
-                               index=i;
-                               break;
-                       }                       
-               }       
-       }
-       return PrevAnnot(index);        
-}
-CPDFSDK_Annot* CPDFSDK_AnnotIterator::NextAnnot (int& index) 
-{      
-       
-       int nCount=m_pIteratorAnnotList.GetSize();
-    if(nCount<=0) index=-1;
-    else{
-               if(index<0){
-                       index=0;                
-               }
-               else{           
-                       if(m_bCircle){                  
-                               index=( index <nCount-1) ? (index+1) :0;                
-                       }
-                       else{
-                               index=( index <nCount-1) ? (index+1) :-1;               
-                       }
-                       
-               }       
-       }
-       return (index <0) ? NULL : (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(index);           
-}
-
-
-CPDFSDK_Annot* CPDFSDK_AnnotIterator::PrevAnnot (int& index)
-{
-       
-       int nCount=m_pIteratorAnnotList.GetSize();
-    if(nCount<=0) index=-1;
-       else{   
-               if(index<0){
-                       index=nCount-1;          
-               }
-               else{   
-                       if(m_bCircle){                  
-                               index = ( index >0) ? (index-1) :nCount-1;              
-                       }
-                       else{
-                               index = ( index >0) ? (index-1) :-1;    
-                       }                               
-               }
-       }
-       return (index <0) ? NULL : (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(index);           
-}
-
-
-CPDFSDK_Annot*CPDFSDK_AnnotIterator::Next(const CPDFSDK_Annot* pCurrent) 
-{
-
-       return (m_bReverse) ? PrevAnnot(pCurrent):NextAnnot(pCurrent);           
-
-}
-
-CPDFSDK_Annot* CPDFSDK_AnnotIterator::Prev(const CPDFSDK_Annot* pCurrent) 
-{
-
-       return (m_bReverse) ? NextAnnot(pCurrent):PrevAnnot(pCurrent);           
-}
-
-CPDFSDK_Annot*CPDFSDK_AnnotIterator::Next(int& index )
-{
-       
-       return (m_bReverse) ? PrevAnnot(index):NextAnnot(index);                 
-       
-}
-
-CPDFSDK_Annot* CPDFSDK_AnnotIterator::Prev(int& index )
-{
-       
-       return (m_bReverse) ? NextAnnot(index):PrevAnnot(index);                 
-}
-
-
-void CPDFSDK_AnnotIterator::InsertSort(CFX_PtrArray &arrayList, AI_COMPARE pCompare)
-{
-       for (int i = 1; i < arrayList.GetSize(); i++)
-       {
-               if (pCompare((CPDFSDK_Annot*)(arrayList[i]) , (CPDFSDK_Annot*)(arrayList[i-1])) < 0)
-               {
-                       int j = i-1;
-                       CPDFSDK_Annot* pTemp = (CPDFSDK_Annot*)arrayList[i];
-                       
-                       do
-                       {
-                               arrayList[j + 1] = arrayList[j];
-                       } while (--j >= 0 && pCompare(pTemp, (CPDFSDK_Annot*)arrayList[j]) < 0);
-
-                       arrayList[j+1] = pTemp;
-               }
-       }
-}
-
-int LyOrderCompare(CPDFSDK_Annot* p1, CPDFSDK_Annot* p2)
-{
-       if(p1->GetLayoutOrder() < p2->GetLayoutOrder())
-               return -1;
-       else if (p1->GetLayoutOrder() == p2->GetLayoutOrder())
-               return 0;
-       else
-               return 1;
-}
-
-FX_BOOL CPDFSDK_AnnotIterator::InitIteratorAnnotList(CPDFSDK_PageView* pPageView,CFX_PtrArray * pAnnotList)
-{
-       ASSERT(pPageView);
-       
-       
+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();
+}
 
-       if(pAnnotList==NULL){   
-               pAnnotList=pPageView->GetAnnotList();
-       }
+void CPDFSDK_AnnotHandlerMgr::RegisterAnnotHandler(
+    IPDFSDK_AnnotHandler* pAnnotHandler) {
+  ASSERT(!GetAnnotHandler(pAnnotHandler->GetType()));
 
-       this->m_pIteratorAnnotList.RemoveAll();
-       if(!pAnnotList) return FALSE;
+  m_Handlers.Add(pAnnotHandler);
+  m_mapType2Handler[pAnnotHandler->GetType()] = pAnnotHandler;
+}
 
-       CPDFSDK_Annot * pTopMostAnnot= (m_bIgnoreTopmost) ? NULL : pPageView->GetFocusAnnot();
+void CPDFSDK_AnnotHandlerMgr::UnRegisterAnnotHandler(
+    IPDFSDK_AnnotHandler* pAnnotHandler) {
+  m_mapType2Handler.erase(pAnnotHandler->GetType());
+  for (int i = 0, sz = m_Handlers.GetSize(); i < sz; i++) {
+    if (m_Handlers.GetAt(i) == pAnnotHandler) {
+      m_Handlers.RemoveAt(i);
+      break;
+    }
+  }
+}
 
+CPDFSDK_Annot* CPDFSDK_AnnotHandlerMgr::NewAnnot(CPDF_Annot* pAnnot,
+                                                 CPDFSDK_PageView* pPageView) {
+  ASSERT(pAnnot != NULL);
+  ASSERT(pPageView != NULL);
 
-       int nCount =pAnnotList->GetSize();
+  if (IPDFSDK_AnnotHandler* pAnnotHandler =
+          GetAnnotHandler(pAnnot->GetSubType())) {
+    return pAnnotHandler->NewAnnot(pAnnot, pPageView);
+  }
 
-       for(int i = nCount- 1 ;i >= 0;i--)
-       {
-               CPDFSDK_Annot * pReaderAnnot= (CPDFSDK_Annot*)pAnnotList->GetAt(i);
-               m_pIteratorAnnotList.Add(pReaderAnnot); 
-       }
+  return new CPDFSDK_Annot(pAnnot, pPageView);
+}
+
+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;
+  }
+}
 
-       InsertSort(m_pIteratorAnnotList,&LyOrderCompare);
+void CPDFSDK_AnnotHandlerMgr::Annot_OnCreate(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot != NULL);
 
-       if(pTopMostAnnot)
-       {
-               for(int i=0 ;i<nCount;i++)
-               {
-                       CPDFSDK_Annot * pReaderAnnot = (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(i);
-                       if(pReaderAnnot == pTopMostAnnot)
-                       {
-                               m_pIteratorAnnotList.RemoveAt(i);
-                               m_pIteratorAnnotList.InsertAt(0, pReaderAnnot);
-                               break;
-                       }       
-               }
-       }
+  CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
+
+  CPDFSDK_DateTime curTime;
+  pPDFAnnot->GetAnnotDict()->SetAtString("M", curTime.ToPDFDateTimeString());
+  pPDFAnnot->GetAnnotDict()->SetAtNumber("F", 0);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    pAnnotHandler->OnCreate(pAnnot);
+  }
+}
+
+void CPDFSDK_AnnotHandlerMgr::Annot_OnLoad(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    pAnnotHandler->OnLoad(pAnnot);
+  }
+}
+
+IPDFSDK_AnnotHandler* CPDFSDK_AnnotHandlerMgr::GetAnnotHandler(
+    CPDFSDK_Annot* pAnnot) const {
+  ASSERT(pAnnot != NULL);
+
+  CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
+  ASSERT(pPDFAnnot != NULL);
+
+  return GetAnnotHandler(pPDFAnnot->GetSubType());
+}
 
-       return TRUE;
+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 != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    pAnnotHandler->OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
+  } else {
+    pAnnot->DrawAppearance(pDevice, pUser2Device, CPDF_Annot::Normal, NULL);
+  }
+}
+
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnLButtonDown(
+    CPDFSDK_PageView* pPageView,
+    CPDFSDK_Annot* pAnnot,
+    FX_DWORD nFlags,
+    const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnLButtonDown(pPageView, pAnnot, nFlags, point);
+  }
+  return FALSE;
+}
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnLButtonUp(CPDFSDK_PageView* pPageView,
+                                                   CPDFSDK_Annot* pAnnot,
+                                                   FX_DWORD nFlags,
+                                                   const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnLButtonUp(pPageView, pAnnot, nFlags, point);
+  }
+  return FALSE;
+}
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnLButtonDblClk(
+    CPDFSDK_PageView* pPageView,
+    CPDFSDK_Annot* pAnnot,
+    FX_DWORD nFlags,
+    const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
+  }
+  return FALSE;
+}
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnMouseMove(CPDFSDK_PageView* pPageView,
+                                                   CPDFSDK_Annot* pAnnot,
+                                                   FX_DWORD nFlags,
+                                                   const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnMouseMove(pPageView, pAnnot, nFlags, point);
+  }
+  return FALSE;
+}
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnMouseWheel(CPDFSDK_PageView* pPageView,
+                                                    CPDFSDK_Annot* pAnnot,
+                                                    FX_DWORD nFlags,
+                                                    short zDelta,
+                                                    const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta,
+                                       point);
+  }
+  return FALSE;
+}
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnRButtonDown(
+    CPDFSDK_PageView* pPageView,
+    CPDFSDK_Annot* pAnnot,
+    FX_DWORD nFlags,
+    const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnRButtonDown(pPageView, pAnnot, nFlags, point);
+  }
+  return FALSE;
+}
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnRButtonUp(CPDFSDK_PageView* pPageView,
+                                                   CPDFSDK_Annot* pAnnot,
+                                                   FX_DWORD nFlags,
+                                                   const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnRButtonUp(pPageView, pAnnot, nFlags, point);
+  }
+  return FALSE;
+}
+
+void CPDFSDK_AnnotHandlerMgr::Annot_OnMouseEnter(CPDFSDK_PageView* pPageView,
+                                                 CPDFSDK_Annot* pAnnot,
+                                                 FX_DWORD nFlag) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    pAnnotHandler->OnMouseEnter(pPageView, pAnnot, nFlag);
+  }
+  return;
+}
+
+void CPDFSDK_AnnotHandlerMgr::Annot_OnMouseExit(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot,
+                                                FX_DWORD nFlag) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    pAnnotHandler->OnMouseExit(pPageView, pAnnot, nFlag);
+  }
+  return;
+}
+
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnChar(CPDFSDK_Annot* pAnnot,
+                                              FX_DWORD nChar,
+                                              FX_DWORD nFlags) {
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnChar(pAnnot, nChar, nFlags);
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnKeyDown(CPDFSDK_Annot* pAnnot,
+                                                 int nKeyCode,
+                                                 int nFlag) {
+  if (!m_pApp->FFI_IsCTRLKeyDown(nFlag) && !m_pApp->FFI_IsALTKeyDown(nFlag)) {
+    CPDFSDK_PageView* pPage = pAnnot->GetPageView();
+    CPDFSDK_Annot* pFocusAnnot = pPage->GetFocusAnnot();
+    if (pFocusAnnot && (nKeyCode == FWL_VKEY_Tab)) {
+      CPDFSDK_Annot* pNext =
+          GetNextAnnot(pFocusAnnot, !m_pApp->FFI_IsSHIFTKeyDown(nFlag));
+
+      if (pNext && pNext != pFocusAnnot) {
+        CPDFSDK_Document* pDocument = pPage->GetSDKDocument();
+        pDocument->SetFocusAnnot(pNext);
+        return TRUE;
+      }
+    }
+  }
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    return pAnnotHandler->OnKeyDown(pAnnot, nKeyCode, nFlag);
+  }
+  return FALSE;
+}
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnKeyUp(CPDFSDK_Annot* pAnnot,
+                                               int nKeyCode,
+                                               int nFlag) {
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_AnnotHandlerMgr::Annot_OnSetFocus(CPDFSDK_Annot* pAnnot,
+                                                  FX_DWORD nFlag) {
+  ASSERT(pAnnot != NULL);
+
+  if (IPDFSDK_AnnotHandler* pAnnotHandler = GetAnnotHandler(pAnnot)) {
+    if (pAnnotHandler->OnSetFocus(pAnnot, nFlag)) {
+      CPDFSDK_PageView* pPage = pAnnot->GetPageView();
+      pPage->GetSDKDocument();
+      return TRUE;
+    }
+  }
+  return FALSE;
+}
+
+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;
+}
+
+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) {
+  CBA_AnnotIterator ai(pSDKAnnot->GetPageView(), "Widget", "");
+  return bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
+}
+
+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;
+
+  int nFieldFlags = pWidget->GetFieldFlags();
+  if ((nFieldFlags & FIELDFLAG_READONLY) == FIELDFLAG_READONLY)
+    return FALSE;
+
+  if (pWidget->GetFieldType() == FIELDTYPE_PUSHBUTTON)
+    return TRUE;
+
+  CPDF_Page* pPage = pWidget->GetPDFPage();
+  CPDF_Document* pDocument = pPage->m_pDocument;
+  FX_DWORD dwPermissions = pDocument->GetUserPermissions();
+  return (dwPermissions & FPDFPERM_FILL_FORM) ||
+         (dwPermissions & FPDFPERM_ANNOT_FORM);
+}
+
+CPDFSDK_Annot* CPDFSDK_BFAnnotHandler::NewAnnot(CPDF_Annot* pAnnot,
+                                                CPDFSDK_PageView* pPage) {
+  CPDFSDK_Document* pSDKDoc = m_pApp->GetSDKDocument();
+  CPDFSDK_InterForm* pInterForm = (CPDFSDK_InterForm*)pSDKDoc->GetInterForm();
+  CPDF_FormControl* pCtrl = CPDFSDK_Widget::GetFormControl(
+      pInterForm->GetInterForm(), pAnnot->GetAnnotDict());
+  if (!pCtrl)
+    return nullptr;
+
+  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;
+}
+
+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);
+
+  CPDF_FormControl* pCtrol = pWidget->GetFormControl();
+  pInterForm->RemoveMap(pCtrol);
+
+  delete pWidget;
+}
+
+void CPDFSDK_BFAnnotHandler::OnDraw(CPDFSDK_PageView* pPageView,
+                                    CPDFSDK_Annot* pAnnot,
+                                    CFX_RenderDevice* pDevice,
+                                    CPDF_Matrix* pUser2Device,
+                                    FX_DWORD dwFlags) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+    pAnnot->DrawAppearance(pDevice, pUser2Device, CPDF_Annot::Normal, NULL);
+  } else {
+    if (m_pFormFiller) {
+      m_pFormFiller->OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
+    }
+  }
+}
+
+void CPDFSDK_BFAnnotHandler::OnMouseEnter(CPDFSDK_PageView* pPageView,
+                                          CPDFSDK_Annot* pAnnot,
+                                          FX_DWORD nFlag) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag);
+  }
+}
+void CPDFSDK_BFAnnotHandler::OnMouseExit(CPDFSDK_PageView* pPageView,
+                                         CPDFSDK_Annot* pAnnot,
+                                         FX_DWORD nFlag) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag);
+  }
+}
+FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonDown(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot,
+                                              FX_DWORD nFlags,
+                                              const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonUp(CPDFSDK_PageView* pPageView,
+                                            CPDFSDK_Annot* pAnnot,
+                                            FX_DWORD nFlags,
+                                            const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView,
+                                                CPDFSDK_Annot* pAnnot,
+                                                FX_DWORD nFlags,
+                                                const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnMouseMove(CPDFSDK_PageView* pPageView,
+                                            CPDFSDK_Annot* pAnnot,
+                                            FX_DWORD nFlags,
+                                            const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnMouseWheel(CPDFSDK_PageView* pPageView,
+                                             CPDFSDK_Annot* pAnnot,
+                                             FX_DWORD nFlags,
+                                             short zDelta,
+                                             const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta,
+                                         point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnRButtonDown(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot,
+                                              FX_DWORD nFlags,
+                                              const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+FX_BOOL CPDFSDK_BFAnnotHandler::OnRButtonUp(CPDFSDK_PageView* pPageView,
+                                            CPDFSDK_Annot* pAnnot,
+                                            FX_DWORD nFlags,
+                                            const CPDF_Point& point) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnChar(CPDFSDK_Annot* pAnnot,
+                                       FX_DWORD nChar,
+                                       FX_DWORD nFlags) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnChar(pAnnot, nChar, nFlags);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnKeyDown(CPDFSDK_Annot* pAnnot,
+                                          int nKeyCode,
+                                          int nFlag) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnKeyDown(pAnnot, nKeyCode, nFlag);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_BFAnnotHandler::OnKeyUp(CPDFSDK_Annot* pAnnot,
+                                        int nKeyCode,
+                                        int nFlag) {
+  return FALSE;
+}
+void CPDFSDK_BFAnnotHandler::OnCreate(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      m_pFormFiller->OnCreate(pAnnot);
+  }
+}
+
+void CPDFSDK_BFAnnotHandler::OnLoad(CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot != NULL);
+
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+    if (!pWidget->IsAppearanceValid())
+      pWidget->ResetAppearance(NULL, FALSE);
+
+    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);
+      }
+    }
+
+    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) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnSetFocus(pAnnot, nFlag);
+  }
+
+  return TRUE;
+}
+FX_BOOL CPDFSDK_BFAnnotHandler::OnKillFocus(CPDFSDK_Annot* pAnnot,
+                                            FX_DWORD nFlag) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->OnKillFocus(pAnnot, nFlag);
+  }
+
+  return TRUE;
+}
+
+CPDF_Rect CPDFSDK_BFAnnotHandler::GetViewBBox(CPDFSDK_PageView* pPageView,
+                                              CPDFSDK_Annot* pAnnot) {
+  ASSERT(pAnnot != NULL);
+  CFX_ByteString sSubType = pAnnot->GetSubType();
+
+  if (sSubType == BFFT_SIGNATURE) {
+  } else {
+    if (m_pFormFiller)
+      return m_pFormFiller->GetViewBBox(pPageView, pAnnot);
+  }
+
+  return CPDF_Rect(0, 0, 0, 0);
+}
+
+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);
+}
+
+// CReader_AnnotIteratorEx
+
+CPDFSDK_AnnotIterator::CPDFSDK_AnnotIterator(CPDFSDK_PageView* pPageView,
+                                             FX_BOOL bReverse,
+                                             FX_BOOL bIgnoreTopmost /*=FALSE*/,
+                                             FX_BOOL bCircle /*=FALSE*/,
+                                             CFX_PtrArray* pList /*=NULL*/) {
+  ASSERT(pPageView);
+  m_bReverse = bReverse;
+  m_bIgnoreTopmost = bIgnoreTopmost;
+  m_bCircle = bCircle;
+  m_pIteratorAnnotList.RemoveAll();
+  InitIteratorAnnotList(pPageView, pList);
+}
+
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::NextAnnot(const CPDFSDK_Annot* pCurrent) {
+  int index = -1;
+  int nCount = m_pIteratorAnnotList.GetSize();
+  if (pCurrent) {
+    for (int i = 0; i < nCount; i++) {
+      CPDFSDK_Annot* pReaderAnnot =
+          (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(i);
+      if (pReaderAnnot == pCurrent) {
+        index = i;
+        break;
+      }
+    }
+  }
+  return NextAnnot(index);
+}
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::PrevAnnot(const CPDFSDK_Annot* pCurrent) {
+  int index = -1;
+  int nCount = m_pIteratorAnnotList.GetSize();
+  if (pCurrent) {
+    for (int i = 0; i < nCount; i++) {
+      CPDFSDK_Annot* pReaderAnnot =
+          (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(i);
+      if (pReaderAnnot == pCurrent) {
+        index = i;
+        break;
+      }
+    }
+  }
+  return PrevAnnot(index);
+}
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::NextAnnot(int& index) {
+  int nCount = m_pIteratorAnnotList.GetSize();
+  if (nCount <= 0)
+    index = -1;
+  else {
+    if (index < 0) {
+      index = 0;
+    } else {
+      if (m_bCircle) {
+        index = (index < nCount - 1) ? (index + 1) : 0;
+      } else {
+        index = (index < nCount - 1) ? (index + 1) : -1;
+      }
+    }
+  }
+  return (index < 0) ? NULL : (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(index);
+}
+
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::PrevAnnot(int& index) {
+  int nCount = m_pIteratorAnnotList.GetSize();
+  if (nCount <= 0)
+    index = -1;
+  else {
+    if (index < 0) {
+      index = nCount - 1;
+    } else {
+      if (m_bCircle) {
+        index = (index > 0) ? (index - 1) : nCount - 1;
+      } else {
+        index = (index > 0) ? (index - 1) : -1;
+      }
+    }
+  }
+  return (index < 0) ? NULL : (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(index);
+}
+
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::Next(const CPDFSDK_Annot* pCurrent) {
+  return (m_bReverse) ? PrevAnnot(pCurrent) : NextAnnot(pCurrent);
+}
+
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::Prev(const CPDFSDK_Annot* pCurrent) {
+  return (m_bReverse) ? NextAnnot(pCurrent) : PrevAnnot(pCurrent);
+}
+
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::Next(int& index) {
+  return (m_bReverse) ? PrevAnnot(index) : NextAnnot(index);
+}
+
+CPDFSDK_Annot* CPDFSDK_AnnotIterator::Prev(int& index) {
+  return (m_bReverse) ? NextAnnot(index) : PrevAnnot(index);
+}
+
+void CPDFSDK_AnnotIterator::InsertSort(CFX_PtrArray& arrayList,
+                                       AI_COMPARE pCompare) {
+  for (int i = 1; i < arrayList.GetSize(); i++) {
+    if (pCompare((CPDFSDK_Annot*)(arrayList[i]),
+                 (CPDFSDK_Annot*)(arrayList[i - 1])) < 0) {
+      int j = i - 1;
+      CPDFSDK_Annot* pTemp = (CPDFSDK_Annot*)arrayList[i];
+
+      do {
+        arrayList[j + 1] = arrayList[j];
+      } while (--j >= 0 && pCompare(pTemp, (CPDFSDK_Annot*)arrayList[j]) < 0);
+
+      arrayList[j + 1] = pTemp;
+    }
+  }
+}
+
+int LyOrderCompare(CPDFSDK_Annot* p1, CPDFSDK_Annot* p2) {
+  if (p1->GetLayoutOrder() < p2->GetLayoutOrder())
+    return -1;
+  if (p1->GetLayoutOrder() > p2->GetLayoutOrder())
+    return 1;
+  return 0;
+}
+
+FX_BOOL CPDFSDK_AnnotIterator::InitIteratorAnnotList(
+    CPDFSDK_PageView* pPageView,
+    CFX_PtrArray* pAnnotList) {
+  ASSERT(pPageView);
+
+  if (pAnnotList == NULL) {
+    pAnnotList = pPageView->GetAnnotList();
+  }
+
+  m_pIteratorAnnotList.RemoveAll();
+  if (!pAnnotList)
+    return FALSE;
+
+  CPDFSDK_Annot* pTopMostAnnot =
+      (m_bIgnoreTopmost) ? NULL : pPageView->GetFocusAnnot();
+
+  int nCount = pAnnotList->GetSize();
+
+  for (int i = nCount - 1; i >= 0; i--) {
+    CPDFSDK_Annot* pReaderAnnot = (CPDFSDK_Annot*)pAnnotList->GetAt(i);
+    m_pIteratorAnnotList.Add(pReaderAnnot);
+  }
+
+  InsertSort(m_pIteratorAnnotList, &LyOrderCompare);
+
+  if (pTopMostAnnot) {
+    for (int i = 0; i < nCount; i++) {
+      CPDFSDK_Annot* pReaderAnnot =
+          (CPDFSDK_Annot*)m_pIteratorAnnotList.GetAt(i);
+      if (pReaderAnnot == pTopMostAnnot) {
+        m_pIteratorAnnotList.RemoveAt(i);
+        m_pIteratorAnnotList.InsertAt(0, pReaderAnnot);
+        break;
+      }
+    }
+  }
+
+  return TRUE;
+}