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// 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

#ifndef FPDFSDK_INCLUDE_FSDK_MGR_H_
#define FPDFSDK_INCLUDE_FSDK_MGR_H_

#include <map>

#include "../../core/include/fpdftext/fpdf_text.h"
#include "../../public/fpdf_formfill.h"
#include "../../public/fpdf_fwlevent.h" // cross platform keycode and events define.
#include "fsdk_common.h"
#include "fsdk_define.h"
#include "fx_systemhandler.h"
#include "fsdk_baseannot.h"
#include "fsdk_baseform.h"
#include "fsdk_annothandler.h"
#include "fsdk_actionhandler.h"
#include "javascript/IJavaScript.h"

class CFFL_IFormFiller;
class CJS_RuntimeFactory;
class CPDFSDK_ActionHandler;
class CPDFSDK_Annot;
class CPDFSDK_Document;
class CPDFSDK_InterForm;
class CPDFSDK_PageView;
class CPDFSDK_Widget;
class IFX_SystemHandler;

class CPDFDoc_Environment final
{
public:
    CPDFDoc_Environment(CPDF_Document* pDoc, FPDF_FORMFILLINFO* pFFinfo);
    ~CPDFDoc_Environment();

    void FFI_Invalidate(FPDF_PAGE page, double left, double top, double right, double bottom)
    {
        if (m_pInfo && m_pInfo->FFI_Invalidate)
            m_pInfo->FFI_Invalidate(m_pInfo, page, left, top, right, bottom);
    }

    void FFI_OutputSelectedRect(FPDF_PAGE page, double left, double top, double right, double bottom)
    {
        if (m_pInfo && m_pInfo->FFI_OutputSelectedRect)
            m_pInfo->FFI_OutputSelectedRect(m_pInfo, page, left, top, right, bottom);
    }

    void FFI_SetCursor(int nCursorType)
    {
        if (m_pInfo && m_pInfo->FFI_SetCursor)
            m_pInfo->FFI_SetCursor(m_pInfo, nCursorType);
    }

    int  FFI_SetTimer(int uElapse, TimerCallback lpTimerFunc)
    {
        if (m_pInfo && m_pInfo->FFI_SetTimer)
            return m_pInfo->FFI_SetTimer(m_pInfo, uElapse, lpTimerFunc);
        return -1;
    }

    void FFI_KillTimer(int nTimerID)
    {
        if (m_pInfo && m_pInfo->FFI_KillTimer)
            m_pInfo->FFI_KillTimer(m_pInfo, nTimerID);
    }

    FX_SYSTEMTIME FFI_GetLocalTime() const
    {
        FX_SYSTEMTIME fxtime;
        if (m_pInfo && m_pInfo->FFI_GetLocalTime)
        {
            FPDF_SYSTEMTIME systime = m_pInfo->FFI_GetLocalTime(m_pInfo);
            fxtime.wDay = systime.wDay;
            fxtime.wDayOfWeek = systime.wDayOfWeek;
            fxtime.wHour = systime.wHour;
            fxtime.wMilliseconds = systime.wMilliseconds;
            fxtime.wMinute = systime.wMinute;
            fxtime.wMonth = systime.wMonth;
            fxtime.wSecond = systime.wSecond;
            fxtime.wYear = systime.wYear;
        }
        return fxtime;
    }

    void FFI_OnChange()
    {
        if (m_pInfo && m_pInfo->FFI_OnChange)
            m_pInfo->FFI_OnChange(m_pInfo);
    }

    FX_BOOL FFI_IsSHIFTKeyDown(FX_DWORD nFlag) const
    {
        return (nFlag & FWL_EVENTFLAG_ShiftKey) != 0;
    }

    FX_BOOL FFI_IsCTRLKeyDown(FX_DWORD nFlag) const
    {
        return (nFlag & FWL_EVENTFLAG_ControlKey) != 0;
    }

    FX_BOOL FFI_IsALTKeyDown(FX_DWORD nFlag) const
    {
        return (nFlag & FWL_EVENTFLAG_AltKey) != 0;
    }

    FX_BOOL FFI_IsINSERTKeyDown(FX_DWORD nFlag) const
    {
        return FALSE;
    }

    int JS_appAlert(const FX_WCHAR* Msg, const FX_WCHAR* Title, FX_UINT Type, FX_UINT Icon);
    int JS_appResponse(const FX_WCHAR* Question, const FX_WCHAR* Title, const FX_WCHAR* Default,
                       const FX_WCHAR* cLabel, FPDF_BOOL bPassword, void* response, int length);

    void JS_appBeep(int nType)
    {
        if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->app_beep)
            m_pInfo->m_pJsPlatform->app_beep(m_pInfo->m_pJsPlatform, nType);
    }

    CFX_WideString JS_fieldBrowse();
    CFX_WideString JS_docGetFilePath();

    void JS_docSubmitForm(void* formData, int length, const FX_WCHAR* URL);
    void JS_docmailForm(void* mailData, int length, FPDF_BOOL bUI,
                        const FX_WCHAR* To, const FX_WCHAR* Subject,
                        const FX_WCHAR* CC, const FX_WCHAR* BCC,
                        const FX_WCHAR* Msg);

    void JS_docprint(FPDF_BOOL bUI, int nStart, int nEnd, FPDF_BOOL bSilent,
                     FPDF_BOOL bShrinkToFit, FPDF_BOOL bPrintAsImage,
                     FPDF_BOOL bReverse ,FPDF_BOOL bAnnotations)
    {
        if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->Doc_print)
            m_pInfo->m_pJsPlatform->Doc_print(
                m_pInfo->m_pJsPlatform, bUI, nStart, nEnd, bSilent, bShrinkToFit,
                bPrintAsImage, bReverse, bAnnotations);
    }

    void JS_docgotoPage(int nPageNum)
    {
        if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->Doc_gotoPage)
            m_pInfo->m_pJsPlatform->Doc_gotoPage(m_pInfo->m_pJsPlatform, nPageNum);
    }

    FPDF_PAGE FFI_GetPage(FPDF_DOCUMENT document, int nPageIndex)
    {
        if (m_pInfo && m_pInfo->FFI_GetPage)
            return m_pInfo->FFI_GetPage(m_pInfo, document, nPageIndex);
        return NULL;
    }

    FPDF_PAGE FFI_GetCurrentPage(FPDF_DOCUMENT document)
    {
        if (m_pInfo && m_pInfo->FFI_GetCurrentPage)
            return m_pInfo->FFI_GetCurrentPage(m_pInfo, document);
        return NULL;
    }

    int FFI_GetRotation(FPDF_PAGE page)
    {
        if (m_pInfo && m_pInfo->FFI_GetRotation)
            return m_pInfo->FFI_GetRotation(m_pInfo, page);
        return 0;
    }

    void FFI_ExecuteNamedAction(const FX_CHAR* namedAction)
    {
        if (m_pInfo && m_pInfo->FFI_ExecuteNamedAction)
            m_pInfo->FFI_ExecuteNamedAction(m_pInfo, namedAction);
    }

    void FFI_OnSetFieldInputFocus(void* field,FPDF_WIDESTRING focusText, FPDF_DWORD nTextLen, FX_BOOL bFocus)
    {
        if (m_pInfo && m_pInfo->FFI_SetTextFieldFocus)
            m_pInfo->FFI_SetTextFieldFocus(m_pInfo, focusText, nTextLen, bFocus);
    }

    void FFI_DoURIAction(const FX_CHAR* bsURI)
    {
        if (m_pInfo && m_pInfo->FFI_DoURIAction)
            m_pInfo->FFI_DoURIAction(m_pInfo, bsURI);
    }

    void FFI_DoGoToAction(int nPageIndex, int zoomMode, float* fPosArray, int sizeOfArray)
    {
        if (m_pInfo && m_pInfo->FFI_DoGoToAction)
            m_pInfo->FFI_DoGoToAction(m_pInfo, nPageIndex, zoomMode, fPosArray, sizeOfArray);
    }

    FX_BOOL IsJSInitiated() const { return m_pInfo && m_pInfo->m_pJsPlatform; }
    void SetSDKDocument(CPDFSDK_Document* pFXDoc) { m_pSDKDoc = pFXDoc; }
    CPDFSDK_Document* GetSDKDocument() const { return m_pSDKDoc; }
    CPDF_Document* GetPDFDocument() const { return m_pPDFDoc; }
    CFX_ByteString GetAppName() const { return ""; }
    IFX_SystemHandler* GetSysHandler() const { return m_pSysHandler; }
    FPDF_FORMFILLINFO* GetFormFillInfo() const { return m_pInfo;}
    CJS_RuntimeFactory* GetRuntimeFactory() const { return m_pJSRuntimeFactory; }

    CFFL_IFormFiller* GetIFormFiller();             // Creates if not present.
    CPDFSDK_AnnotHandlerMgr* GetAnnotHandlerMgr();  // Creates if not present.
    IFXJS_Runtime*  GetJSRuntime();                 // Creates if not present.
    CPDFSDK_ActionHandler* GetActionHander();       // Creates if not present.

private:
    CPDFSDK_AnnotHandlerMgr* m_pAnnotHandlerMgr;
    CPDFSDK_ActionHandler* m_pActionHandler;
    IFXJS_Runtime* m_pJSRuntime;
    FPDF_FORMFILLINFO* const m_pInfo;
    CPDFSDK_Document* m_pSDKDoc;
    CPDF_Document* const m_pPDFDoc;
    CFFL_IFormFiller* m_pIFormFiller;
    IFX_SystemHandler* m_pSysHandler;
    CJS_RuntimeFactory* m_pJSRuntimeFactory;
};

class CPDFSDK_Document
{
public:
    CPDFSDK_Document(CPDF_Document* pDoc, CPDFDoc_Environment* pEnv);
    ~CPDFSDK_Document();

    CPDFSDK_InterForm*      GetInterForm() ;
    CPDF_Document*          GetDocument() {return m_pDoc;}

    CPDFSDK_PageView*       GetPageView(CPDF_Page* pPDFPage, FX_BOOL ReNew = TRUE);
    CPDFSDK_PageView*       GetPageView(int nIndex);
    CPDFSDK_PageView*       GetCurrentView();
    void                    ReMovePageView(CPDF_Page* pPDFPage);
    void                    UpdateAllViews(CPDFSDK_PageView* pSender, CPDFSDK_Annot* pAnnot);

    CPDFSDK_Annot*          GetFocusAnnot();

    IFXJS_Runtime *         GetJsRuntime();

    FX_BOOL                 SetFocusAnnot(CPDFSDK_Annot* pAnnot, FX_UINT nFlag = 0);
    FX_BOOL                 KillFocusAnnot(FX_UINT nFlag = 0);

    FX_BOOL                 ExtractPages(const CFX_WordArray &arrExtraPages, CPDF_Document* pDstDoc);
    FX_BOOL                 InsertPages(int nInsertAt, const CPDF_Document* pSrcDoc, const CFX_WordArray &arrSrcPages);
    FX_BOOL                 ReplacePages(int nPage, const CPDF_Document* pSrcDoc, const CFX_WordArray &arrSrcPages);

    void                    OnCloseDocument();

    int                     GetPageCount() {return m_pDoc->GetPageCount();}
    FX_BOOL                 GetPermissions(int nFlag);
    FX_BOOL                 GetChangeMark() {return m_bChangeMask;}
    void                    SetChangeMark() {m_bChangeMask = TRUE;}
    void                    ClearChangeMark() {m_bChangeMask= FALSE;}
    CFX_WideString          GetPath() ;
    CPDF_Page*              GetPage(int nIndex);
    CPDFDoc_Environment *   GetEnv() {return m_pEnv; }
    void                    ProcJavascriptFun();
    FX_BOOL                 ProcOpenAction();
    CPDF_OCContext*         GetOCContext();
private:
    std::map<CPDF_Page*, CPDFSDK_PageView*> m_pageMap;
    CPDF_Document* m_pDoc;
    CPDFSDK_InterForm* m_pInterForm;
    CPDFSDK_Annot* m_pFocusAnnot;
    CPDFDoc_Environment* m_pEnv;
    CPDF_OCContext* m_pOccontent;
    FX_BOOL m_bChangeMask;
};
class CPDFSDK_PageView final
{
public:
    CPDFSDK_PageView(CPDFSDK_Document* pSDKDoc,CPDF_Page* page);
    ~CPDFSDK_PageView();
    void PageView_OnDraw(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device,CPDF_RenderOptions* pOptions) ;
    CPDF_Annot*                     GetPDFAnnotAtPoint(FX_FLOAT pageX, FX_FLOAT pageY);
    CPDFSDK_Annot*                  GetFXAnnotAtPoint(FX_FLOAT pageX, FX_FLOAT pageY);
    CPDF_Annot*                     GetPDFWidgetAtPoint(FX_FLOAT pageX, FX_FLOAT pageY);
    CPDFSDK_Annot*                  GetFXWidgetAtPoint(FX_FLOAT pageX, FX_FLOAT pageY);
    CPDFSDK_Annot*                  GetFocusAnnot() ;
    void                            SetFocusAnnot(CPDFSDK_Annot* pSDKAnnot,FX_UINT nFlag = 0) {m_pSDKDoc->SetFocusAnnot(pSDKAnnot, nFlag);}
    FX_BOOL                         KillFocusAnnot(FX_UINT nFlag = 0) {return m_pSDKDoc->KillFocusAnnot(nFlag);}
    FX_BOOL                         Annot_HasAppearance(CPDF_Annot* pAnnot);

    CPDFSDK_Annot*                  AddAnnot(CPDF_Dictionary * pDict);
    CPDFSDK_Annot*                  AddAnnot(const FX_CHAR* lpSubType,CPDF_Dictionary * pDict);
    CPDFSDK_Annot*                  AddAnnot(CPDF_Annot * pPDFAnnot);
        FX_BOOL                     DeleteAnnot(CPDFSDK_Annot* pAnnot);
    int                             CountAnnots();
    CPDFSDK_Annot*                  GetAnnot(int nIndex);
    CPDFSDK_Annot*                  GetAnnotByDict(CPDF_Dictionary * pDict);
    CPDF_Page*                      GetPDFPage(){return m_page;}
    CPDF_Document*                  GetPDFDocument();
    CPDFSDK_Document*               GetSDKDocument() {return m_pSDKDoc;}
    FX_BOOL                 OnLButtonDown(const CPDF_Point & point, FX_UINT nFlag);
    FX_BOOL                 OnLButtonUp(const CPDF_Point & point, FX_UINT nFlag);
    FX_BOOL                 OnChar(int nChar, FX_UINT nFlag);
    FX_BOOL                 OnKeyDown(int nKeyCode, int nFlag);
    FX_BOOL                 OnKeyUp(int nKeyCode, int nFlag);

    FX_BOOL                 OnMouseMove(const CPDF_Point & point, int nFlag);
    FX_BOOL                 OnMouseWheel(double deltaX, double deltaY,const CPDF_Point& point, int nFlag);
    FX_BOOL                 IsValidAnnot(void* p);
    void                    GetCurrentMatrix(CPDF_Matrix& matrix) {matrix = m_curMatrix;}
    void                    UpdateRects(CFX_RectArray& rects);
    void                            UpdateView(CPDFSDK_Annot* pAnnot);
    CFX_PtrArray*                   GetAnnotList(){ return &m_fxAnnotArray; }

    int                     GetPageIndex();
    void                            LoadFXAnnots();

        void SetValid(FX_BOOL bValid) {m_bValid = bValid;}
        FX_BOOL IsValid() {return m_bValid;}
        void SetLock(FX_BOOL bLocked) {m_bLocked= bLocked;}
        FX_BOOL IsLocked() {return m_bLocked;}
        void TakeOverPage() {m_bTakeOverPage = TRUE;}
private:
    void PageView_OnHighlightFormFields(CFX_RenderDevice* pDevice, CPDFSDK_Widget* pWidget);
        CPDF_Matrix m_curMatrix;
    CPDF_Page* m_page;
    CPDF_AnnotList* m_pAnnotList;
    //CPDFSDK_Annot* m_pFocusAnnot;
    CFX_PtrArray  m_fxAnnotArray;
    CPDFSDK_Document* m_pSDKDoc;
    CPDFSDK_Widget* m_CaptureWidget;
    FX_BOOL m_bEnterWidget;
    FX_BOOL m_bExitWidget;
    FX_BOOL m_bOnWidget;
    FX_BOOL m_bValid;
        FX_BOOL m_bLocked;
        FX_BOOL m_bTakeOverPage;
};


template<class TYPE>
class CGW_ArrayTemplate : public CFX_ArrayTemplate<TYPE>
{
public:
    CGW_ArrayTemplate(){}
    virtual ~CGW_ArrayTemplate(){}

    typedef int (*LP_COMPARE)(TYPE p1, TYPE p2);

    void Sort(LP_COMPARE pCompare, FX_BOOL bAscent = TRUE)
    {
        int nSize = this->GetSize();
        QuickSort(0, nSize -1, bAscent, pCompare);
    }

private:
    void QuickSort(FX_UINT nStartPos, FX_UINT nStopPos, FX_BOOL bAscend, LP_COMPARE pCompare)
    {
        if (nStartPos >= nStopPos) return;

        if ((nStopPos - nStartPos) == 1)
        {
            TYPE Value1 = this->GetAt(nStartPos);
            TYPE Value2 = this->GetAt(nStopPos);

            int iGreate = (*pCompare)(Value1, Value2);
            if ((bAscend && iGreate > 0) || (!bAscend && iGreate < 0))
            {
                this->SetAt(nStartPos, Value2);
                this->SetAt(nStopPos, Value1);
            }
            return;
        }

        FX_UINT m = nStartPos + (nStopPos - nStartPos) / 2;
        FX_UINT i = nStartPos;

        TYPE Value = this->GetAt(m);

        while (i < m)
        {
            TYPE temp = this->GetAt(i);

            int iGreate = (*pCompare)(temp, Value);
            if ((bAscend && iGreate > 0) || (!bAscend && iGreate < 0))
            {
                this->InsertAt(m+1, temp);
                this->RemoveAt(i);
                m--;
            }
            else
            {
                i++;
            }
        }

        FX_UINT j = nStopPos;

        while (j > m)
        {
            TYPE temp = this->GetAt(j);

            int iGreate = (*pCompare)(temp, Value);
            if ((bAscend && iGreate < 0) || (!bAscend && iGreate > 0))
            {
                this->RemoveAt(j);
                this->InsertAt(m, temp);
                m++;
            }
            else
            {
                j--;
            }
        }

        if (nStartPos < m) QuickSort(nStartPos, m, bAscend, pCompare);
        if (nStopPos > m) QuickSort(m, nStopPos, bAscend, pCompare);
    }
};

#endif  // FPDFSDK_INCLUDE_FSDK_MGR_H_