// 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/fsdk_mgr.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()
{
    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();

    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());
}

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", "");
    return bNext ? ai.GetNextAnnot(pSDKAnnot) : ai.GetPrevAnnot(pSDKAnnot);
}

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)
{
    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;
    else if (p1->GetLayoutOrder() == p2->GetLayoutOrder())
        return 0;
    else
        return 1;
}

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;
}