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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_FORMFILLER_CFFL_FORMFILLER_H_
8 #define FPDFSDK_FORMFILLER_CFFL_FORMFILLER_H_
9 
10 #include <map>
11 #include <memory>
12 
13 #include "core/fxcrt/cfx_timer.h"
14 #include "core/fxcrt/unowned_ptr.h"
15 #include "fpdfsdk/cpdfsdk_fieldaction.h"
16 #include "fpdfsdk/cpdfsdk_widget.h"
17 #include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
18 #include "fpdfsdk/pwl/cpwl_wnd.h"
19 #include "fpdfsdk/pwl/ipwl_systemhandler.h"
20 
21 class CPDFSDK_Annot;
22 class CPDFSDK_FormFillEnvironment;
23 class CPDFSDK_PageView;
24 
25 class CFFL_FormFiller : public CPWL_Wnd::ProviderIface,
26                         public CFX_Timer::CallbackIface {
27  public:
28   CFFL_FormFiller(CPDFSDK_FormFillEnvironment* pFormFillEnv,
29                   CPDFSDK_Widget* pWidget);
30   ~CFFL_FormFiller() override;
31 
32   virtual void OnDraw(CPDFSDK_PageView* pPageView,
33                       CPDFSDK_Annot* pAnnot,
34                       CFX_RenderDevice* pDevice,
35                       const CFX_Matrix& mtUser2Device);
36   virtual void OnDrawDeactive(CPDFSDK_PageView* pPageView,
37                               CPDFSDK_Annot* pAnnot,
38                               CFX_RenderDevice* pDevice,
39                               const CFX_Matrix& mtUser2Device);
40 
41   virtual void OnMouseEnter(CPDFSDK_PageView* pPageView);
42   virtual void OnMouseExit(CPDFSDK_PageView* pPageView);
43 
44   virtual bool OnLButtonDown(CPDFSDK_PageView* pPageView,
45                              CPDFSDK_Annot* pAnnot,
46                              uint32_t nFlags,
47                              const CFX_PointF& point);
48   virtual bool OnLButtonUp(CPDFSDK_PageView* pPageView,
49                            CPDFSDK_Annot* pAnnot,
50                            uint32_t nFlags,
51                            const CFX_PointF& point);
52   virtual bool OnLButtonDblClk(CPDFSDK_PageView* pPageView,
53                                uint32_t nFlags,
54                                const CFX_PointF& point);
55   virtual bool OnMouseMove(CPDFSDK_PageView* pPageView,
56                            uint32_t nFlags,
57                            const CFX_PointF& point);
58   virtual bool OnMouseWheel(CPDFSDK_PageView* pPageView,
59                             uint32_t nFlags,
60                             short zDelta,
61                             const CFX_PointF& point);
62   virtual bool OnRButtonDown(CPDFSDK_PageView* pPageView,
63                              uint32_t nFlags,
64                              const CFX_PointF& point);
65   virtual bool OnRButtonUp(CPDFSDK_PageView* pPageView,
66                            uint32_t nFlags,
67                            const CFX_PointF& point);
68 
69   virtual bool OnKeyDown(uint32_t nKeyCode, uint32_t nFlags);
70   virtual bool OnChar(CPDFSDK_Annot* pAnnot, uint32_t nChar, uint32_t nFlags);
71   virtual bool SetIndexSelected(int index, bool selected);
72   virtual bool IsIndexSelected(int index);
73 
74   FX_RECT GetViewBBox(CPDFSDK_PageView* pPageView);
75 
76   WideString GetText();
77   WideString GetSelectedText();
78   void ReplaceSelection(const WideString& text);
79 
80   bool CanUndo();
81   bool CanRedo();
82   bool Undo();
83   bool Redo();
84 
85   void SetFocusForAnnot(CPDFSDK_Annot* pAnnot, uint32_t nFlag);
86   void KillFocusForAnnot(uint32_t nFlag);
87 
88   // CFX_Timer::CallbackIface:
89   void OnTimerFired() override;
90 
91   // CPWL_Wnd::ProviderIface:
92   CFX_Matrix GetWindowMatrix(
93       const IPWL_SystemHandler::PerWindowData* pAttached) override;
94 
95   virtual void GetActionData(CPDFSDK_PageView* pPageView,
96                              CPDF_AAction::AActionType type,
97                              CPDFSDK_FieldAction& fa);
98   virtual void SetActionData(CPDFSDK_PageView* pPageView,
99                              CPDF_AAction::AActionType type,
100                              const CPDFSDK_FieldAction& fa);
101   virtual CPWL_Wnd::CreateParams GetCreateParam();
102   virtual std::unique_ptr<CPWL_Wnd> NewPWLWindow(
103       const CPWL_Wnd::CreateParams& cp,
104       std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData) = 0;
105   virtual CPWL_Wnd* ResetPWLWindow(CPDFSDK_PageView* pPageView,
106                                    bool bRestoreValue);
107   virtual void SaveState(CPDFSDK_PageView* pPageView);
108   virtual void RestoreState(CPDFSDK_PageView* pPageView);
109 
110   CFX_Matrix GetCurMatrix();
111   CFX_FloatRect GetFocusBox(CPDFSDK_PageView* pPageView);
112   CFX_FloatRect FFLtoPWL(const CFX_FloatRect& rect);
113   CFX_FloatRect PWLtoFFL(const CFX_FloatRect& rect);
114   CFX_PointF FFLtoPWL(const CFX_PointF& point);
115   CFX_PointF PWLtoFFL(const CFX_PointF& point);
116   CFX_PointF WndtoPWL(const CFX_PointF& pt);
117   CFX_FloatRect FFLtoWnd(const CFX_FloatRect& rect);
118 
119   bool CommitData(CPDFSDK_PageView* pPageView, uint32_t nFlag);
120   virtual bool IsDataChanged(CPDFSDK_PageView* pPageView);
121   virtual void SaveData(CPDFSDK_PageView* pPageView);
122 
123 #ifdef PDF_ENABLE_XFA
124   virtual bool IsFieldFull(CPDFSDK_PageView* pPageView);
125 #endif  // PDF_ENABLE_XFA
126 
127   CPWL_Wnd* GetPWLWindow(CPDFSDK_PageView* pPageView, bool bNew);
128   void DestroyPWLWindow(CPDFSDK_PageView* pPageView);
129   void EscapeFiller(CPDFSDK_PageView* pPageView, bool bDestroyPWLWindow);
130 
131   bool IsValid() const;
132   CFX_FloatRect GetPDFAnnotRect() const;
133 
134   CPDFSDK_PageView* GetCurPageView(bool renew);
135   void SetChangeMark();
136 
GetSDKAnnot()137   CPDFSDK_Annot* GetSDKAnnot() const { return m_pWidget.Get(); }
138 
139  protected:
140   // If the inheriting widget has its own fontmap and a PWL_Edit widget that
141   // access that fontmap then you have to call DestroyWindows before destroying
142   // the font map in order to not get a use-after-free.
143   //
144   // The font map should be stored somewhere more appropriate so it will live
145   // until the PWL_Edit is done with it. pdfium:566
146   void DestroyWindows();
147 
148   void InvalidateRect(const FX_RECT& rect);
149 
150   bool m_bValid = false;
151   UnownedPtr<CPDFSDK_FormFillEnvironment> const m_pFormFillEnv;
152   UnownedPtr<CPDFSDK_Widget> m_pWidget;
153   std::unique_ptr<CFX_Timer> m_pTimer;
154   std::map<CPDFSDK_PageView*, std::unique_ptr<CPWL_Wnd>> m_Maps;
155 };
156 
157 #endif  // FPDFSDK_FORMFILLER_CFFL_FORMFILLER_H_
158