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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_FORMFILLER_FFL_FORMFILLER_H_
#define FPDFSDK_INCLUDE_FORMFILLER_FFL_FORMFILLER_H_

#include "FFL_IFormFiller.h"
#include "FFL_CBA_Fontmap.h"

class CPDFDoc_Environment;
class CPDFSDK_Annot;
class CPDFSDK_Document;
class CPDFSDK_PageView;
class CPDFSDK_Widget;

class CFFL_FormFiller : public IPWL_Provider, public CPWL_TimerHandler {
 public:
  CFFL_FormFiller(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot);
  ~CFFL_FormFiller() override;

  virtual FX_RECT GetViewBBox(CPDFSDK_PageView* pPageView,
                              CPDFSDK_Annot* pAnnot);
  virtual void OnDraw(CPDFSDK_PageView* pPageView,
                      CPDFSDK_Annot* pAnnot,
                      CFX_RenderDevice* pDevice,
                      CPDF_Matrix* pUser2Device,
                      FX_DWORD dwFlags);
  virtual void OnDrawDeactive(CPDFSDK_PageView* pPageView,
                              CPDFSDK_Annot* pAnnot,
                              CFX_RenderDevice* pDevice,
                              CPDF_Matrix* pUser2Device,
                              FX_DWORD dwFlags);

  virtual void OnCreate(CPDFSDK_Annot* pAnnot);
  virtual void OnLoad(CPDFSDK_Annot* pAnnot);
  virtual void OnDelete(CPDFSDK_Annot* pAnnot);

  virtual void OnMouseEnter(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot);
  virtual void OnMouseExit(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot);

  virtual FX_BOOL OnLButtonDown(CPDFSDK_PageView* pPageView,
                                CPDFSDK_Annot* pAnnot,
                                FX_UINT nFlags,
                                const CPDF_Point& point);
  virtual FX_BOOL OnLButtonUp(CPDFSDK_PageView* pPageView,
                              CPDFSDK_Annot* pAnnot,
                              FX_UINT nFlags,
                              const CPDF_Point& point);
  virtual FX_BOOL OnLButtonDblClk(CPDFSDK_PageView* pPageView,
                                  CPDFSDK_Annot* pAnnot,
                                  FX_UINT nFlags,
                                  const CPDF_Point& point);
  virtual FX_BOOL OnMouseMove(CPDFSDK_PageView* pPageView,
                              CPDFSDK_Annot* pAnnot,
                              FX_UINT nFlags,
                              const CPDF_Point& point);
  virtual FX_BOOL OnMouseWheel(CPDFSDK_PageView* pPageView,
                               CPDFSDK_Annot* pAnnot,
                               FX_UINT nFlags,
                               short zDelta,
                               const CPDF_Point& point);
  virtual FX_BOOL OnRButtonDown(CPDFSDK_PageView* pPageView,
                                CPDFSDK_Annot* pAnnot,
                                FX_UINT nFlags,
                                const CPDF_Point& point);
  virtual FX_BOOL OnRButtonUp(CPDFSDK_PageView* pPageView,
                              CPDFSDK_Annot* pAnnot,
                              FX_UINT nFlags,
                              const CPDF_Point& point);

  virtual FX_BOOL OnKeyDown(CPDFSDK_Annot* pAnnot,
                            FX_UINT nKeyCode,
                            FX_UINT nFlags);
  virtual FX_BOOL OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags);

  void SetFocusForAnnot(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);
  void KillFocusForAnnot(CPDFSDK_Annot* pAnnot, FX_UINT nFlag);

  // CPWL_TimerHandler
  void TimerProc() override;
  IFX_SystemHandler* GetSystemHandler() const override;

  // IPWL_Provider
  CPDF_Matrix GetWindowMatrix(void* pAttachedData) override;
  CFX_WideString LoadPopupMenuString(int nIndex) override;

  virtual void GetActionData(CPDFSDK_PageView* pPageView,
                             CPDF_AAction::AActionType type,
                             PDFSDK_FieldAction& fa);
  virtual void SetActionData(CPDFSDK_PageView* pPageView,
                             CPDF_AAction::AActionType type,
                             const PDFSDK_FieldAction& fa);
  virtual FX_BOOL IsActionDataChanged(CPDF_AAction::AActionType type,
                                      const PDFSDK_FieldAction& faOld,
                                      const PDFSDK_FieldAction& faNew);

  virtual void SaveState(CPDFSDK_PageView* pPageView);
  virtual void RestoreState(CPDFSDK_PageView* pPageView);

  virtual CPWL_Wnd* ResetPDFWindow(CPDFSDK_PageView* pPageView,
                                   FX_BOOL bRestoreValue);

  CPDF_Matrix GetCurMatrix();

  CPDF_Rect FFLtoPWL(const CPDF_Rect& rect);
  CPDF_Rect PWLtoFFL(const CPDF_Rect& rect);
  CPDF_Point FFLtoPWL(const CPDF_Point& point);
  CPDF_Point PWLtoFFL(const CPDF_Point& point);

  CPDF_Point WndtoPWL(CPDFSDK_PageView* pPageView, const CPDF_Point& pt);
  CPDF_Rect FFLtoWnd(CPDFSDK_PageView* pPageView, const CPDF_Rect& rect);

  void SetWindowRect(CPDFSDK_PageView* pPageView, const CPDF_Rect& rcWindow);
  CPDF_Rect GetWindowRect(CPDFSDK_PageView* pPageView);

  FX_BOOL CommitData(CPDFSDK_PageView* pPageView, FX_UINT nFlag);
  virtual FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView);
  virtual void SaveData(CPDFSDK_PageView* pPageView);

  CPWL_Wnd* GetPDFWindow(CPDFSDK_PageView* pPageView, FX_BOOL bNew);
  void DestroyPDFWindow(CPDFSDK_PageView* pPageView);
  void EscapeFiller(CPDFSDK_PageView* pPageView, FX_BOOL bDestroyPDFWindow);

  virtual PWL_CREATEPARAM GetCreateParam();
  virtual CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
                                 CPDFSDK_PageView* pPageView) = 0;
  virtual CPDF_Rect GetFocusBox(CPDFSDK_PageView* pPageView);

  FX_BOOL IsValid() const;
  CPDF_Rect GetPDFWindowRect() const;

  CPDFSDK_PageView* GetCurPageView();
  void SetChangeMark();

  virtual void InvalidateRect(double left,
                              double top,
                              double right,
                              double bottom);
  CPDFDoc_Environment* GetApp() { return m_pApp; }
  CPDFSDK_Annot* GetSDKAnnot() { return m_pAnnot; }

 protected:
  using CFFL_PageView2PDFWindow = std::map<CPDFSDK_PageView*, CPWL_Wnd*>;

  CPDFDoc_Environment* m_pApp;
  CPDFSDK_Widget* m_pWidget;
  CPDFSDK_Annot* m_pAnnot;

  FX_BOOL m_bValid;
  CFFL_PageView2PDFWindow m_Maps;
  CPDF_Point m_ptOldPos;
};

class CFFL_Button : public CFFL_FormFiller {
 public:
  CFFL_Button(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pWidget);
  ~CFFL_Button() override;

  // CFFL_FormFiller
  void OnMouseEnter(CPDFSDK_PageView* pPageView,
                    CPDFSDK_Annot* pAnnot) override;
  void OnMouseExit(CPDFSDK_PageView* pPageView, CPDFSDK_Annot* pAnnot) override;
  FX_BOOL OnLButtonDown(CPDFSDK_PageView* pPageView,
                        CPDFSDK_Annot* pAnnot,
                        FX_UINT nFlags,
                        const CPDF_Point& point) override;
  FX_BOOL OnLButtonUp(CPDFSDK_PageView* pPageView,
                      CPDFSDK_Annot* pAnnot,
                      FX_UINT nFlags,
                      const CPDF_Point& point) override;
  FX_BOOL OnMouseMove(CPDFSDK_PageView* pPageView,
                      CPDFSDK_Annot* pAnnot,
                      FX_UINT nFlags,
                      const CPDF_Point& point) override;
  void OnDraw(CPDFSDK_PageView* pPageView,
              CPDFSDK_Annot* pAnnot,
              CFX_RenderDevice* pDevice,
              CPDF_Matrix* pUser2Device,
              FX_DWORD dwFlags) override;
  void OnDrawDeactive(CPDFSDK_PageView* pPageView,
                      CPDFSDK_Annot* pAnnot,
                      CFX_RenderDevice* pDevice,
                      CPDF_Matrix* pUser2Device,
                      FX_DWORD dwFlags) override;

 protected:
  FX_BOOL m_bMouseIn;
  FX_BOOL m_bMouseDown;
};

#endif  // FPDFSDK_INCLUDE_FORMFILLER_FFL_FORMFILLER_H_