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// 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_