fpdfsdk/include/formfiller/FFL_ComboBox.h

// 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_COMBOBOX_H_
#define FPDFSDK_INCLUDE_FORMFILLER_FFL_COMBOBOX_H_

#include "../../../core/include/fxcrt/fx_string.h"
#include "FFL_FormFiller.h"

class CBA_FontMap;
class CPDFSDK_Document;

struct FFL_ComboBoxState {
  int nIndex;
  int nStart;
  int nEnd;
  CFX_WideString sValue;
};

class CFFL_ComboBox : public CFFL_FormFiller,
                      public IPWL_FocusHandler,
                      public IPWL_Edit_Notify {
 public:
  CFFL_ComboBox(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pWidget);
  virtual ~CFFL_ComboBox();

  virtual PWL_CREATEPARAM GetCreateParam();
  virtual CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
                                 CPDFSDK_PageView* pPageView);

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

  virtual FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView);
  virtual void SaveData(CPDFSDK_PageView* pPageView);

  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);
  virtual void OnKeyStroke(FX_BOOL bKeyDown, FX_UINT nFlag);

 public:
  virtual void OnSetFocus(CPWL_Wnd* pWnd);
  virtual void OnKillFocus(CPWL_Wnd* pWnd);

 public:
  virtual void OnAddUndo(CPWL_Edit* pEdit);

 public:
  virtual FX_BOOL CanCopy(CPDFSDK_Document* pDocument);
  virtual FX_BOOL CanCut(CPDFSDK_Document* pDocument);
  virtual FX_BOOL CanPaste(CPDFSDK_Document* pDocument);

 private:
  CFX_WideString GetSelectExportText();

 private:
  CBA_FontMap* m_pFontMap;
  FFL_ComboBoxState m_State;
};

#endif  // FPDFSDK_INCLUDE_FORMFILLER_FFL_COMBOBOX_H_