fpdfsdk/ differences with XFA (for didactic purposes only).

fpdfsdk/include/fsdk_annothandler.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_FSDK_ANNOTHANDLER_H_
 #define FPDFSDK_INCLUDE_FSDK_ANNOTHANDLER_H_
 
 #include <map>
 #include <vector>
 
 #include "core/include/fxcrt/fx_basic.h"
 
+#ifdef PDF_ENABLE_XFA
+#define FSDK_XFAWIDGET_TYPENAME "XFAWidget"
+
+#endif
 class CFFL_IFormFiller;
 class CFX_RenderDevice;
 class CPDFDoc_Environment;
 class CPDFSDK_Annot;
 class CPDFSDK_PageView;
 class CPDF_Annot;
 class CPDF_Matrix;
 class CPDF_Point;
 class CPDF_Rect;
 
 class IPDFSDK_AnnotHandler {
  public:
   virtual ~IPDFSDK_AnnotHandler() {}
 
   virtual CFX_ByteString GetType() = 0;
 
   virtual CFX_ByteString GetName() = 0;
 
   virtual FX_BOOL CanAnswer(CPDFSDK_Annot* pAnnot) = 0;
 
   virtual CPDFSDK_Annot* NewAnnot(CPDF_Annot* pAnnot,
                                   CPDFSDK_PageView* pPage) = 0;
 
+#ifdef PDF_ENABLE_XFA
+  virtual CPDFSDK_Annot* NewAnnot(IXFA_Widget* hWidget,
+                                  CPDFSDK_PageView* pPage) = 0;
+
+#endif
   virtual void ReleaseAnnot(CPDFSDK_Annot* pAnnot) = 0;
 
   virtual void DeleteAnnot(CPDFSDK_Annot* pAnnot) = 0;
 
   virtual CPDF_Rect GetViewBBox(CPDFSDK_PageView* pPageView,
                                 CPDFSDK_Annot* pAnnot) = 0;
 
   virtual FX_BOOL HitTest(CPDFSDK_PageView* pPageView,
                           CPDFSDK_Annot* pAnnot,
                           const CPDF_Point& point) = 0;
@@ skipping 64 matching lines @@
                          FX_DWORD nChar,
                          FX_DWORD nFlags) = 0;
   virtual FX_BOOL OnKeyDown(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag) = 0;
   virtual FX_BOOL OnKeyUp(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag) = 0;
 
   virtual void OnDeSelected(CPDFSDK_Annot* pAnnot) = 0;
   virtual void OnSelected(CPDFSDK_Annot* pAnnot) = 0;
 
   virtual FX_BOOL OnSetFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag) = 0;
   virtual FX_BOOL OnKillFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag) = 0;
+#ifdef PDF_ENABLE_XFA
+  virtual FX_BOOL OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
+                                    CPDFSDK_Annot* pNewAnnot) = 0;
+#endif
 };
 
 class CPDFSDK_BFAnnotHandler : public IPDFSDK_AnnotHandler {
  public:
   explicit CPDFSDK_BFAnnotHandler(CPDFDoc_Environment* pApp)
       : m_pApp(pApp), m_pFormFiller(NULL) {}
   ~CPDFSDK_BFAnnotHandler() override {}
 
   // IPDFSDK_AnnotHandler
   CFX_ByteString GetType() override { return CFX_ByteString("Widget"); }
   CFX_ByteString GetName() override { return CFX_ByteString("WidgetHandler"); }
   FX_BOOL CanAnswer(CPDFSDK_Annot* pAnnot) override;
   CPDFSDK_Annot* NewAnnot(CPDF_Annot* pAnnot, CPDFSDK_PageView* pPage) override;
+#ifdef PDF_ENABLE_XFA
+  CPDFSDK_Annot* NewAnnot(IXFA_Widget* hWidget,
+                          CPDFSDK_PageView* pPage) override;
+#endif
   void ReleaseAnnot(CPDFSDK_Annot* pAnnot) override;
   void DeleteAnnot(CPDFSDK_Annot* pAnnot) override {}
   CPDF_Rect GetViewBBox(CPDFSDK_PageView* pPageView,
                         CPDFSDK_Annot* pAnnot) override;
   FX_BOOL HitTest(CPDFSDK_PageView* pPageView,
                   CPDFSDK_Annot* pAnnot,
                   const CPDF_Point& point) override;
   void OnDraw(CPDFSDK_PageView* pPageView,
               CPDFSDK_Annot* pAnnot,
               CFX_RenderDevice* pDevice,
@@ skipping 52 matching lines @@
   }
   FX_BOOL OnChar(CPDFSDK_Annot* pAnnot,
                  FX_DWORD nChar,
                  FX_DWORD nFlags) override;
   FX_BOOL OnKeyDown(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag) override;
   FX_BOOL OnKeyUp(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag) override;
   void OnDeSelected(CPDFSDK_Annot* pAnnot) override {}
   void OnSelected(CPDFSDK_Annot* pAnnot) override {}
   FX_BOOL OnSetFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag) override;
   FX_BOOL OnKillFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag) override;
+#ifdef PDF_ENABLE_XFA
+  FX_BOOL OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
+                            CPDFSDK_Annot* pNewAnnot) override {
+    return TRUE;
+  }
+#endif
 
   void SetFormFiller(CFFL_IFormFiller* pFiller) { m_pFormFiller = pFiller; }
   CFFL_IFormFiller* GetFormFiller() { return m_pFormFiller; }
 
  private:
   CPDFDoc_Environment* m_pApp;
   CFFL_IFormFiller* m_pFormFiller;
 };
 
+#ifdef PDF_ENABLE_XFA
+class CPDFSDK_XFAAnnotHandler : public IPDFSDK_AnnotHandler {
+ public:
+  explicit CPDFSDK_XFAAnnotHandler(CPDFDoc_Environment* pApp);
+  ~CPDFSDK_XFAAnnotHandler() {}
+
+ public:
+  virtual CFX_ByteString GetType() { return FSDK_XFAWIDGET_TYPENAME; }
+
+  virtual CFX_ByteString GetName() { return "XFAWidgetHandler"; }
+
+  virtual FX_BOOL CanAnswer(CPDFSDK_Annot* pAnnot);
+
+  virtual CPDFSDK_Annot* NewAnnot(CPDF_Annot* pAnnot, CPDFSDK_PageView* pPage) {
+    return NULL;
+  }
+
+  virtual CPDFSDK_Annot* NewAnnot(IXFA_Widget* pAnnot, CPDFSDK_PageView* pPage);
+
+  virtual void ReleaseAnnot(CPDFSDK_Annot* pAnnot);
+
+  virtual void DeleteAnnot(CPDFSDK_Annot* pAnnot) {}
+
+  virtual CPDF_Rect GetViewBBox(CPDFSDK_PageView* pPageView,
+                                CPDFSDK_Annot* pAnnot);
+
+  virtual FX_BOOL HitTest(CPDFSDK_PageView* pPageView,
+                          CPDFSDK_Annot* pAnnot,
+                          const CPDF_Point& point);
+
+  virtual void OnDraw(CPDFSDK_PageView* pPageView,
+                      CPDFSDK_Annot* pAnnot,
+                      CFX_RenderDevice* pDevice,
+                      CPDF_Matrix* pUser2Device,
+                      FX_DWORD dwFlags);
+
+  virtual void OnDrawSleep(CPDFSDK_PageView* pPageView,
+                           CPDFSDK_Annot* pAnnot,
+                           CFX_RenderDevice* pDevice,
+                           CPDF_Matrix* pUser2Device,
+                           const CPDF_Rect& rcWindow,
+                           FX_DWORD dwFlags) {}
+
+  virtual void OnCreate(CPDFSDK_Annot* pAnnot) {}
+
+  virtual void OnLoad(CPDFSDK_Annot* pAnnot) {}
+
+  virtual void OnDelete(CPDFSDK_Annot* pAnnot) {}
+
+  virtual void OnRelease(CPDFSDK_Annot* pAnnot) {}
+
+  virtual void OnMouseEnter(CPDFSDK_PageView* pPageView,
+                            CPDFSDK_Annot* pAnnot,
+                            FX_DWORD nFlag);
+  virtual void OnMouseExit(CPDFSDK_PageView* pPageView,
+                           CPDFSDK_Annot* pAnnot,
+                           FX_DWORD nFlag);
+
+  virtual FX_BOOL OnLButtonDown(CPDFSDK_PageView* pPageView,
+                                CPDFSDK_Annot* pAnnot,
+                                FX_DWORD nFlags,
+                                const CPDF_Point& point);
+  virtual FX_BOOL OnLButtonUp(CPDFSDK_PageView* pPageView,
+                              CPDFSDK_Annot* pAnnot,
+                              FX_DWORD nFlags,
+                              const CPDF_Point& point);
+  virtual FX_BOOL OnLButtonDblClk(CPDFSDK_PageView* pPageView,
+                                  CPDFSDK_Annot* pAnnot,
+                                  FX_DWORD nFlags,
+                                  const CPDF_Point& point);
+  virtual FX_BOOL OnMouseMove(CPDFSDK_PageView* pPageView,
+                              CPDFSDK_Annot* pAnnot,
+                              FX_DWORD nFlags,
+                              const CPDF_Point& point);
+  virtual FX_BOOL OnMouseWheel(CPDFSDK_PageView* pPageView,
+                               CPDFSDK_Annot* pAnnot,
+                               FX_DWORD nFlags,
+                               short zDelta,
+                               const CPDF_Point& point);
+  virtual FX_BOOL OnRButtonDown(CPDFSDK_PageView* pPageView,
+                                CPDFSDK_Annot* pAnnot,
+                                FX_DWORD nFlags,
+                                const CPDF_Point& point);
+  virtual FX_BOOL OnRButtonUp(CPDFSDK_PageView* pPageView,
+                              CPDFSDK_Annot* pAnnot,
+                              FX_DWORD nFlags,
+                              const CPDF_Point& point);
+  virtual FX_BOOL OnRButtonDblClk(CPDFSDK_PageView* pPageView,
+                                  CPDFSDK_Annot* pAnnot,
+                                  FX_DWORD nFlags,
+                                  const CPDF_Point& point);
+  // by wjm.
+  virtual FX_BOOL OnChar(CPDFSDK_Annot* pAnnot,
+                         FX_DWORD nChar,
+                         FX_DWORD nFlags);
+  virtual FX_BOOL OnKeyDown(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag);
+  virtual FX_BOOL OnKeyUp(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag);
+
+  virtual void OnDeSelected(CPDFSDK_Annot* pAnnot) {}
+  virtual void OnSelected(CPDFSDK_Annot* pAnnot) {}
+
+  virtual FX_BOOL OnSetFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag);
+  virtual FX_BOOL OnKillFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag);
+  virtual FX_BOOL OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
+                                    CPDFSDK_Annot* pNewAnnot);
+
+ private:
+  IXFA_WidgetHandler* GetXFAWidgetHandler(CPDFSDK_Annot* pAnnot);
+  FX_DWORD GetFWLFlags(FX_DWORD dwFlag);
+
+ private:
+  CPDFDoc_Environment* m_pApp;
+};
+
+#endif
 #define CBA_AnnotHandlerArray CFX_ArrayTemplate<IPDFSDK_AnnotHandler*>
 class CPDFSDK_AnnotHandlerMgr {
  public:
   // Destroy the handler
   explicit CPDFSDK_AnnotHandlerMgr(CPDFDoc_Environment* pApp);
   virtual ~CPDFSDK_AnnotHandlerMgr();
 
  public:
   void RegisterAnnotHandler(IPDFSDK_AnnotHandler* pAnnotHandler);
   void UnRegisterAnnotHandler(IPDFSDK_AnnotHandler* pAnnotHandler);
 
   virtual CPDFSDK_Annot* NewAnnot(CPDF_Annot* pAnnot,
                                   CPDFSDK_PageView* pPageView);
+#ifdef PDF_ENABLE_XFA
+  virtual CPDFSDK_Annot* NewAnnot(IXFA_Widget* pAnnot,
+                                  CPDFSDK_PageView* pPageView);
+#endif
   virtual void ReleaseAnnot(CPDFSDK_Annot* pAnnot);
 
   virtual void Annot_OnCreate(CPDFSDK_Annot* pAnnot);
   virtual void Annot_OnLoad(CPDFSDK_Annot* pAnnot);
 
  public:
   IPDFSDK_AnnotHandler* GetAnnotHandler(CPDFSDK_Annot* pAnnot) const;
   virtual void Annot_OnDraw(CPDFSDK_PageView* pPageView,
                             CPDFSDK_Annot* pAnnot,
                             CFX_RenderDevice* pDevice,
@@ skipping 41 matching lines @@
   virtual FX_BOOL Annot_OnChar(CPDFSDK_Annot* pAnnot,
                                FX_DWORD nChar,
                                FX_DWORD nFlags);
   virtual FX_BOOL Annot_OnKeyDown(CPDFSDK_Annot* pAnnot,
                                   int nKeyCode,
                                   int nFlag);
   virtual FX_BOOL Annot_OnKeyUp(CPDFSDK_Annot* pAnnot, int nKeyCode, int nFlag);
 
   virtual FX_BOOL Annot_OnSetFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag);
   virtual FX_BOOL Annot_OnKillFocus(CPDFSDK_Annot* pAnnot, FX_DWORD nFlag);
+#ifdef PDF_ENABLE_XFA
+  virtual FX_BOOL Annot_OnChangeFocus(CPDFSDK_Annot* pSetAnnot,
+                                      CPDFSDK_Annot* pKillAnnot);
+#endif
 
   virtual CPDF_Rect Annot_OnGetViewBBox(CPDFSDK_PageView* pPageView,
                                         CPDFSDK_Annot* pAnnot);
   virtual FX_BOOL Annot_OnHitTest(CPDFSDK_PageView* pPageView,
                                   CPDFSDK_Annot* pAnnot,
                                   const CPDF_Point& point);
 
  private:
   IPDFSDK_AnnotHandler* GetAnnotHandler(const CFX_ByteString& sType) const;
   CPDFSDK_Annot* GetNextAnnot(CPDFSDK_Annot* pSDKAnnot, FX_BOOL bNext);
@@ skipping 14 matching lines @@
  private:
   CPDFSDK_Annot* NextAnnot();
   CPDFSDK_Annot* PrevAnnot();
 
   std::vector<CPDFSDK_Annot*> m_iteratorAnnotList;
   const bool m_bReverse;
   size_t m_pos;
 };
 
 #endif  // FPDFSDK_INCLUDE_FSDK_ANNOTHANDLER_H_