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_EDIT_H_
8 #define FPDFSDK_PDFWINDOW_PWL_EDIT_H_
9 
10 #include <vector>
11 
12 #include "core/fxcrt/fx_basic.h"
13 #include "fpdfsdk/fxedit/fx_edit.h"
14 #include "fpdfsdk/pdfwindow/PWL_EditCtrl.h"
15 #include "fpdfsdk/pdfwindow/PWL_Wnd.h"
16 
17 class CPDF_PageObjectHolder;
18 class CPDF_TextObject;
19 class IFX_Edit_UndoItem;
20 
21 class IPWL_Filler_Notify {
22  public:
~IPWL_Filler_Notify()23   virtual ~IPWL_Filler_Notify() {}
24   virtual void QueryWherePopup(
25       void* pPrivateData,
26       FX_FLOAT fPopupMin,
27       FX_FLOAT fPopupMax,
28       int32_t& nRet,
29       FX_FLOAT& fPopupRet) = 0;  // nRet: (0:bottom 1:top)
30   virtual void OnBeforeKeyStroke(void* pPrivateData,
31                                  CFX_WideString& strChange,
32                                  const CFX_WideString& strChangeEx,
33                                  int nSelStart,
34                                  int nSelEnd,
35                                  bool bKeyDown,
36                                  bool& bRC,
37                                  bool& bExit,
38                                  uint32_t nFlag) = 0;
39 #ifdef PDF_ENABLE_XFA
40   virtual void OnPopupPreOpen(void* pPrivateData,
41                               bool& bExit,
42                               uint32_t nFlag) = 0;
43   virtual void OnPopupPostOpen(void* pPrivateData,
44                                bool& bExit,
45                                uint32_t nFlag) = 0;
46 #endif  // PDF_ENABLE_XFA
47 };
48 
49 class CPWL_Edit : public CPWL_EditCtrl {
50  public:
51   CPWL_Edit();
52   ~CPWL_Edit() override;
53 
54   // CPWL_EditCtrl
55   CFX_ByteString GetClassName() const override;
56   void OnDestroy() override;
57   void OnCreated() override;
58   void RePosChildWnd() override;
59   CFX_FloatRect GetClientRect() const override;
60   void GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) override;
61   void DrawThisAppearance(CFX_RenderDevice* pDevice,
62                           CFX_Matrix* pUser2Device) override;
63   bool OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) override;
64   bool OnLButtonDblClk(const CFX_PointF& point, uint32_t nFlag) override;
65   bool OnRButtonUp(const CFX_PointF& point, uint32_t nFlag) override;
66   bool OnMouseWheel(short zDelta,
67                     const CFX_PointF& point,
68                     uint32_t nFlag) override;
69   bool OnKeyDown(uint16_t nChar, uint32_t nFlag) override;
70   bool OnChar(uint16_t nChar, uint32_t nFlag) override;
71   CFX_FloatRect GetFocusRect() const override;
72   void OnSetFocus() override;
73   void OnKillFocus() override;
74 
75   void SetAlignFormatV(PWL_EDIT_ALIGNFORMAT_V nFormat = PEAV_TOP,
76                        bool bPaint = true);  // 0:top 1:bottom 2:center
77 
78   void SetCharArray(int32_t nCharArray);
79   void SetLimitChar(int32_t nLimitChar);
80 
81   void SetCharSpace(FX_FLOAT fCharSpace);
82 
83   bool CanSelectAll() const;
84   bool CanClear() const;
85   bool CanCopy() const;
86   bool CanCut() const;
87 
88   void CutText();
89 
90   void SetText(const CFX_WideString& csText);
91   void ReplaceSel(const CFX_WideString& csText);
92 
93   CFX_ByteString GetTextAppearanceStream(const CFX_PointF& ptOffset) const;
94   CFX_ByteString GetCaretAppearanceStream(const CFX_PointF& ptOffset) const;
95   CFX_ByteString GetSelectAppearanceStream(const CFX_PointF& ptOffset) const;
96 
97   bool IsTextFull() const;
98 
99   static FX_FLOAT GetCharArrayAutoFontSize(CPDF_Font* pFont,
100                                            const CFX_FloatRect& rcPlate,
101                                            int32_t nCharArray);
102 
SetFillerNotify(IPWL_Filler_Notify * pNotify)103   void SetFillerNotify(IPWL_Filler_Notify* pNotify) {
104     m_pFillerNotify = pNotify;
105   }
106 
107   bool IsProceedtoOnChar(uint16_t nKeyCode, uint32_t nFlag);
AttachFFLData(CFFL_FormFiller * pData)108   void AttachFFLData(CFFL_FormFiller* pData) { m_pFormFiller = pData; }
109 
110   void OnInsertWord(const CPVT_WordPlace& place,
111                     const CPVT_WordPlace& oldplace);
112   void OnInsertReturn(const CPVT_WordPlace& place,
113                       const CPVT_WordPlace& oldplace);
114   void OnBackSpace(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
115   void OnDelete(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
116   void OnClear(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace);
117   void OnInsertText(const CPVT_WordPlace& place,
118                     const CPVT_WordPlace& oldplace);
119 
120  private:
121   CPVT_WordRange GetSelectWordRange() const;
122   virtual void ShowVScrollBar(bool bShow);
123   bool IsVScrollBarVisible() const;
124   void SetParamByFlag();
125 
126   FX_FLOAT GetCharArrayAutoFontSize(int32_t nCharArray);
127   CFX_PointF GetWordRightBottomPoint(const CPVT_WordPlace& wpWord);
128 
129   CPVT_WordRange CombineWordRange(const CPVT_WordRange& wr1,
130                                   const CPVT_WordRange& wr2);
131   CPVT_WordRange GetLatinWordsRange(const CFX_PointF& point) const;
132   CPVT_WordRange GetLatinWordsRange(const CPVT_WordPlace& place) const;
133   CPVT_WordRange GetArabicWordsRange(const CPVT_WordPlace& place) const;
134   CPVT_WordRange GetSameWordsRange(const CPVT_WordPlace& place,
135                                    bool bLatin,
136                                    bool bArabic) const;
137   IPWL_Filler_Notify* m_pFillerNotify;
138   bool m_bFocus;
139   CFX_FloatRect m_rcOldWindow;
140   CFFL_FormFiller* m_pFormFiller;  // Not owned.
141 };
142 
143 #endif  // FPDFSDK_PDFWINDOW_PWL_EDIT_H_
144