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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_PWL_CPWL_LIST_BOX_H_
      8 #define FPDFSDK_PWL_CPWL_LIST_BOX_H_
      9 
     10 #include <memory>
     11 
     12 #include "core/fxcrt/unowned_ptr.h"
     13 #include "fpdfsdk/pwl/cpwl_wnd.h"
     14 
     15 class CPWL_ListCtrl;
     16 class CPWL_List_Notify;
     17 class CPWL_ListBox;
     18 class IPWL_Filler_Notify;
     19 struct CPVT_WordPlace;
     20 
     21 class CPWL_List_Notify {
     22  public:
     23   explicit CPWL_List_Notify(CPWL_ListBox* pList);
     24   ~CPWL_List_Notify();
     25 
     26   void IOnSetScrollInfoY(float fPlateMin,
     27                          float fPlateMax,
     28                          float fContentMin,
     29                          float fContentMax,
     30                          float fSmallStep,
     31                          float fBigStep);
     32   void IOnSetScrollPosY(float fy);
     33   void IOnInvalidateRect(CFX_FloatRect* pRect);
     34 
     35  private:
     36   UnownedPtr<CPWL_ListBox> m_pList;
     37 };
     38 
     39 class CPWL_ListBox : public CPWL_Wnd {
     40  public:
     41   CPWL_ListBox();
     42   ~CPWL_ListBox() override;
     43 
     44   // CPWL_Wnd
     45   ByteString GetClassName() const override;
     46   void OnCreated() override;
     47   void OnDestroy() override;
     48   void DrawThisAppearance(CFX_RenderDevice* pDevice,
     49                           const CFX_Matrix& mtUser2Device) override;
     50   bool OnKeyDown(uint16_t nChar, uint32_t nFlag) override;
     51   bool OnChar(uint16_t nChar, uint32_t nFlag) override;
     52   bool OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) override;
     53   bool OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) override;
     54   bool OnMouseMove(const CFX_PointF& point, uint32_t nFlag) override;
     55   bool OnMouseWheel(short zDelta,
     56                     const CFX_PointF& point,
     57                     uint32_t nFlag) override;
     58   void KillFocus() override;
     59   void SetScrollInfo(const PWL_SCROLL_INFO& info) override;
     60   void SetScrollPosition(float pos) override;
     61   void ScrollWindowVertically(float pos) override;
     62   bool RePosChildWnd() override;
     63   CFX_FloatRect GetFocusRect() const override;
     64   void SetFontSize(float fFontSize) override;
     65   float GetFontSize() const override;
     66 
     67   virtual WideString GetText() const;
     68 
     69   bool OnNotifySelectionChanged(bool bKeyDown, uint32_t nFlag);
     70 
     71   void AddString(const WideString& str);
     72   void SetTopVisibleIndex(int32_t nItemIndex);
     73   void ScrollToListItem(int32_t nItemIndex);
     74   void ResetContent();
     75   void Reset();
     76   void Select(int32_t nItemIndex);
     77   void SetCaret(int32_t nItemIndex);
     78   void SetHoverSel(bool bHoverSel);
     79 
     80   int32_t GetCount() const;
     81   bool IsMultipleSel() const;
     82   int32_t GetCaretIndex() const;
     83   int32_t GetCurSel() const;
     84   bool IsItemSelected(int32_t nItemIndex) const;
     85   int32_t GetTopVisibleIndex() const;
     86   int32_t FindNext(int32_t nIndex, wchar_t nChar) const;
     87   CFX_FloatRect GetContentRect() const;
     88   float GetFirstHeight() const;
     89   CFX_FloatRect GetListRect() const;
     90 
     91   void SetFillerNotify(IPWL_Filler_Notify* pNotify) {
     92     m_pFillerNotify = pNotify;
     93   }
     94 
     95   void AttachFFLData(CFFL_FormFiller* pData) { m_pFormFiller = pData; }
     96 
     97  protected:
     98   std::unique_ptr<CPWL_ListCtrl> m_pList;
     99   std::unique_ptr<CPWL_List_Notify> m_pListNotify;
    100   bool m_bMouseDown;
    101   bool m_bHoverSel;
    102   UnownedPtr<IPWL_Filler_Notify> m_pFillerNotify;
    103 
    104  private:
    105   UnownedPtr<CFFL_FormFiller> m_pFormFiller;
    106 };
    107 
    108 #endif  // FPDFSDK_PWL_CPWL_LIST_BOX_H_
    109