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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef FPDFSDK_PDFWINDOW_PWL_LISTBOX_H_
      8 #define FPDFSDK_PDFWINDOW_PWL_LISTBOX_H_
      9 
     10 #include <memory>
     11 
     12 #include "fpdfsdk/fxedit/fx_edit.h"
     13 #include "fpdfsdk/pdfwindow/PWL_Wnd.h"
     14 
     15 class CFX_ListCtrl;
     16 class CPWL_List_Notify;
     17 class CPWL_ListBox;
     18 class IPWL_Filler_Notify;
     19 struct CPVT_SecProps;
     20 struct CPVT_WordPlace;
     21 struct CPVT_WordProps;
     22 
     23 class CPWL_List_Notify {
     24  public:
     25   explicit CPWL_List_Notify(CPWL_ListBox* pList);
     26   ~CPWL_List_Notify();
     27 
     28   void IOnSetScrollInfoY(FX_FLOAT fPlateMin,
     29                          FX_FLOAT fPlateMax,
     30                          FX_FLOAT fContentMin,
     31                          FX_FLOAT fContentMax,
     32                          FX_FLOAT fSmallStep,
     33                          FX_FLOAT fBigStep);
     34   void IOnSetScrollPosY(FX_FLOAT fy);
     35   void IOnInvalidateRect(CFX_FloatRect* pRect);
     36 
     37   void IOnSetCaret(bool bVisible,
     38                    const CFX_PointF& ptHead,
     39                    const CFX_PointF& ptFoot,
     40                    const CPVT_WordPlace& place);
     41 
     42  private:
     43   CPWL_ListBox* m_pList;
     44 };
     45 
     46 class CPWL_ListBox : public CPWL_Wnd {
     47  public:
     48   CPWL_ListBox();
     49   ~CPWL_ListBox() override;
     50 
     51   // CPWL_Wnd
     52   CFX_ByteString GetClassName() const override;
     53   void OnCreated() override;
     54   void OnDestroy() override;
     55   void GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) override;
     56   void DrawThisAppearance(CFX_RenderDevice* pDevice,
     57                           CFX_Matrix* pUser2Device) override;
     58   bool OnKeyDown(uint16_t nChar, uint32_t nFlag) override;
     59   bool OnChar(uint16_t nChar, uint32_t nFlag) override;
     60   bool OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) override;
     61   bool OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) override;
     62   bool OnMouseMove(const CFX_PointF& point, uint32_t nFlag) override;
     63   bool OnMouseWheel(short zDelta,
     64                     const CFX_PointF& point,
     65                     uint32_t nFlag) override;
     66   void KillFocus() override;
     67   void OnNotify(CPWL_Wnd* pWnd,
     68                 uint32_t msg,
     69                 intptr_t wParam = 0,
     70                 intptr_t lParam = 0) override;
     71   void RePosChildWnd() override;
     72   CFX_FloatRect GetFocusRect() const override;
     73   void SetFontSize(FX_FLOAT fFontSize) override;
     74   FX_FLOAT GetFontSize() const override;
     75 
     76   virtual CFX_WideString GetText() const;
     77 
     78   void OnNotifySelChanged(bool bKeyDown, bool& bExit, uint32_t nFlag);
     79 
     80   void AddString(const CFX_WideString& str);
     81   void SetTopVisibleIndex(int32_t nItemIndex);
     82   void ScrollToListItem(int32_t nItemIndex);
     83   void ResetContent();
     84   void Reset();
     85   void Select(int32_t nItemIndex);
     86   void SetCaret(int32_t nItemIndex);
     87   void SetHoverSel(bool bHoverSel);
     88 
     89   int32_t GetCount() const;
     90   bool IsMultipleSel() const;
     91   int32_t GetCaretIndex() const;
     92   int32_t GetCurSel() const;
     93   bool IsItemSelected(int32_t nItemIndex) const;
     94   int32_t GetTopVisibleIndex() const;
     95   int32_t FindNext(int32_t nIndex, FX_WCHAR nChar) const;
     96   CFX_FloatRect GetContentRect() const;
     97   FX_FLOAT GetFirstHeight() const;
     98   CFX_FloatRect GetListRect() const;
     99 
    100   void SetFillerNotify(IPWL_Filler_Notify* pNotify) {
    101     m_pFillerNotify = pNotify;
    102   }
    103 
    104   void AttachFFLData(CFFL_FormFiller* pData) { m_pFormFiller = pData; }
    105 
    106  protected:
    107   std::unique_ptr<CFX_ListCtrl> m_pList;
    108   std::unique_ptr<CPWL_List_Notify> m_pListNotify;
    109   bool m_bMouseDown;
    110   bool m_bHoverSel;
    111   IPWL_Filler_Notify* m_pFillerNotify;
    112 
    113  private:
    114   CFFL_FormFiller* m_pFormFiller;  // Not owned.
    115 };
    116 
    117 #endif  // FPDFSDK_PDFWINDOW_PWL_LISTBOX_H_
    118