| // Copyright 2016 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_CPDFSDK_ANNOT_H_ |
| #define FPDFSDK_CPDFSDK_ANNOT_H_ |
| |
| #include "core/fpdfdoc/cpdf_annot.h" |
| #include "core/fxcrt/fx_coordinates.h" |
| #include "core/fxcrt/mask.h" |
| #include "core/fxcrt/observed_ptr.h" |
| #include "core/fxcrt/unowned_ptr.h" |
| #include "core/fxcrt/widestring.h" |
| #include "public/fpdf_fwlevent.h" |
| |
| class CPDF_Page; |
| class CPDFSDK_BAAnnot; |
| class CPDFSDK_PageView; |
| class CPDFXFA_Widget; |
| class IPDF_Page; |
| |
| class CPDFSDK_Annot : public Observable { |
| public: |
| // These methods may destroy the class that implements them when called. |
| // Access through the static methods below of the same name. |
| class UnsafeInputHandlers { |
| public: |
| virtual void OnMouseEnter(Mask<FWL_EVENTFLAG> nFlags) = 0; |
| virtual void OnMouseExit(Mask<FWL_EVENTFLAG> nFlags) = 0; |
| virtual bool OnLButtonDown(Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point) = 0; |
| virtual bool OnLButtonUp(Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point) = 0; |
| virtual bool OnLButtonDblClk(Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point) = 0; |
| virtual bool OnMouseMove(Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point) = 0; |
| virtual bool OnMouseWheel(Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point, |
| const CFX_Vector& delta) = 0; |
| virtual bool OnRButtonDown(Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point) = 0; |
| virtual bool OnRButtonUp(Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point) = 0; |
| virtual bool OnChar(uint32_t nChar, Mask<FWL_EVENTFLAG> nFlags) = 0; |
| virtual bool OnKeyDown(FWL_VKEYCODE nKeyCode, |
| Mask<FWL_EVENTFLAG> nFlags) = 0; |
| virtual bool OnSetFocus(Mask<FWL_EVENTFLAG> nFlags) = 0; |
| virtual bool OnKillFocus(Mask<FWL_EVENTFLAG> nFlags) = 0; |
| }; |
| |
| virtual ~CPDFSDK_Annot(); |
| |
| virtual CPDFSDK_BAAnnot* AsBAAnnot(); |
| virtual CPDFXFA_Widget* AsXFAWidget(); |
| |
| // Never returns nullptr. |
| virtual UnsafeInputHandlers* GetUnsafeInputHandlers() = 0; |
| |
| virtual void OnLoad() {} |
| virtual int GetLayoutOrder() const; |
| virtual CPDF_Annot* GetPDFAnnot() const; |
| virtual CPDF_Annot::Subtype GetAnnotSubtype() const = 0; |
| virtual CFX_FloatRect GetRect() const = 0; |
| virtual void OnDraw(CFX_RenderDevice* pDevice, |
| const CFX_Matrix& mtUser2Device, |
| bool bDrawAnnots) = 0; |
| virtual bool DoHitTest(const CFX_PointF& point) = 0; |
| virtual CFX_FloatRect GetViewBBox() = 0; |
| virtual bool CanUndo() = 0; |
| virtual bool CanRedo() = 0; |
| virtual bool Undo() = 0; |
| virtual bool Redo() = 0; |
| virtual WideString GetText() = 0; |
| virtual WideString GetSelectedText() = 0; |
| virtual void ReplaceSelection(const WideString& text) = 0; |
| virtual bool SelectAllText() = 0; |
| virtual bool SetIndexSelected(int index, bool selected) = 0; |
| virtual bool IsIndexSelected(int index) = 0; |
| |
| // Callers must check if `pAnnot` is still valid after calling these methods, |
| // before accessing them again. |
| static void OnMouseEnter(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags); |
| static void OnMouseExit(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags); |
| static bool OnLButtonDown(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point); |
| static bool OnLButtonUp(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point); |
| static bool OnLButtonDblClk(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point); |
| static bool OnMouseMove(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point); |
| static bool OnMouseWheel(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point, |
| const CFX_Vector& delta); |
| static bool OnRButtonDown(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point); |
| static bool OnRButtonUp(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags, |
| const CFX_PointF& point); |
| static bool OnChar(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| uint32_t nChar, |
| Mask<FWL_EVENTFLAG> nFlags); |
| static bool OnKeyDown(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| FWL_VKEYCODE nKeyCode, |
| Mask<FWL_EVENTFLAG> nFlags); |
| static bool OnSetFocus(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags); |
| static bool OnKillFocus(ObservedPtr<CPDFSDK_Annot>& pAnnot, |
| Mask<FWL_EVENTFLAG> nFlags); |
| |
| // Three cases: PDF page only, XFA page only, or XFA page backed by PDF page. |
| IPDF_Page* GetPage(); // Returns XFA Page if possible, else PDF page. |
| CPDF_Page* GetPDFPage(); // Returns PDF page or nullptr. |
| IPDF_Page* GetXFAPage(); // Returns XFA page or nullptr. |
| |
| // Never returns nullptr. |
| CPDFSDK_PageView* GetPageView() const { return m_pPageView.Get(); } |
| |
| protected: |
| explicit CPDFSDK_Annot(CPDFSDK_PageView* pPageView); |
| |
| UnownedPtr<CPDFSDK_PageView> const m_pPageView; |
| }; |
| |
| inline CPDFXFA_Widget* ToXFAWidget(CPDFSDK_Annot* pAnnot) { |
| return pAnnot ? pAnnot->AsXFAWidget() : nullptr; |
| } |
| |
| #endif // FPDFSDK_CPDFSDK_ANNOT_H_ |