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// Copyright 2014 The PDFium Authors
// 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 XFA_FXFA_CXFA_FFWIDGET_H_
#define XFA_FXFA_CXFA_FFWIDGET_H_
#include <stdint.h>
#include "core/fpdfdoc/cpdf_formfield.h"
#include "core/fxcodec/fx_codec_def.h"
#include "core/fxcrt/mask.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxge/cfx_graphstatedata.h"
#include "fxjs/gc/heap.h"
#include "v8/include/cppgc/garbage-collected.h"
#include "v8/include/cppgc/visitor.h"
#include "xfa/fwl/cfwl_app.h"
#include "xfa/fwl/cfwl_messagemouse.h"
#include "xfa/fwl/cfwl_widget.h"
#include "xfa/fwl/fwl_widgetdef.h"
#include "xfa/fxfa/cxfa_eventparam.h"
#include "xfa/fxfa/cxfa_ffapp.h"
#include "xfa/fxfa/fxfa.h"
#include "xfa/fxfa/layout/cxfa_contentlayoutitem.h"
class CFGAS_GEGraphics;
class CFX_DIBitmap;
class CXFA_Box;
class CXFA_FFApp;
class CXFA_FFDoc;
class CXFA_FFDocView;
class CXFA_FFField;
class CXFA_FFPageView;
class CXFA_FFWidgetHandler;
class CXFA_Margin;
class IFX_SeekableReadStream;
enum class FWL_WidgetHit;
inline float XFA_UnitPx2Pt(float fPx, float fDpi) {
return fPx * 72.0f / fDpi;
}
constexpr float kXFAWidgetPrecision = 0.001f;
void XFA_DrawImage(CFGAS_GEGraphics* pGS,
const CFX_RectF& rtImage,
const CFX_Matrix& matrix,
RetainPtr<CFX_DIBitmap> pDIBitmap,
XFA_AttributeValue iAspect,
const CFX_Size& dpi,
XFA_AttributeValue iHorzAlign = XFA_AttributeValue::Left,
XFA_AttributeValue iVertAlign = XFA_AttributeValue::Top);
RetainPtr<CFX_DIBitmap> XFA_LoadImageFromBuffer(
RetainPtr<IFX_SeekableReadStream> pImageFileRead,
FXCODEC_IMAGE_TYPE type,
int32_t& iImageXDpi,
int32_t& iImageYDpi);
void XFA_RectWithoutMargin(CFX_RectF* rt, const CXFA_Margin* margin);
class CXFA_FFWidget : public cppgc::GarbageCollected<CXFA_FFWidget>,
public CFWL_Widget::AdapterIface {
public:
enum FocusOption { kDoNotDrawFocus = 0, kDrawFocus };
enum HighlightOption { kNoHighlight = 0, kHighlight };
class IteratorIface {
public:
virtual ~IteratorIface() = default;
virtual CXFA_FFWidget* MoveToFirst() = 0;
virtual CXFA_FFWidget* MoveToLast() = 0;
virtual CXFA_FFWidget* MoveToNext() = 0;
virtual CXFA_FFWidget* MoveToPrevious() = 0;
virtual CXFA_FFWidget* GetCurrentWidget() = 0;
virtual bool SetCurrentWidget(CXFA_FFWidget* hWidget) = 0;
};
static CXFA_FFWidget* FromLayoutItem(CXFA_LayoutItem* pLayoutItem);
CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED;
~CXFA_FFWidget() override;
void Trace(cppgc::Visitor* visitor) const override;
// CFWL_Widget::AdapterIface:
CFX_Matrix GetRotateMatrix() override;
void DisplayCaret(bool bVisible, const CFX_RectF* pRtAnchor) override;
void GetBorderColorAndThickness(FX_ARGB* cr, float* fWidth) override;
virtual CXFA_FFField* AsField();
virtual CFX_RectF GetBBox(FocusOption focus);
virtual void RenderWidget(CFGAS_GEGraphics* pGS,
const CFX_Matrix& matrix,
HighlightOption highlight);
virtual bool IsLoaded();
virtual bool LoadWidget();
virtual bool PerformLayout();
virtual bool UpdateFWLData();
virtual void UpdateWidgetProperty();
// |command| must be LeftButtonDown or RightButtonDown.
virtual bool AcceptsFocusOnButtonDown(
Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point,
CFWL_MessageMouse::MouseCommand command);
// Caution: Returning false from an On* method may mean |this| is destroyed.
[[nodiscard]] virtual bool OnMouseEnter();
[[nodiscard]] virtual bool OnMouseExit();
[[nodiscard]] virtual bool OnLButtonDown(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point);
[[nodiscard]] virtual bool OnLButtonUp(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point);
[[nodiscard]] virtual bool OnLButtonDblClk(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point);
[[nodiscard]] virtual bool OnMouseMove(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point);
[[nodiscard]] virtual bool OnMouseWheel(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point,
const CFX_Vector& delta);
[[nodiscard]] virtual bool OnRButtonDown(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point);
[[nodiscard]] virtual bool OnRButtonUp(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point);
[[nodiscard]] virtual bool OnRButtonDblClk(Mask<XFA_FWL_KeyFlag> dwFlags,
const CFX_PointF& point);
[[nodiscard]] virtual bool OnSetFocus(CXFA_FFWidget* pOldWidget);
[[nodiscard]] virtual bool OnKillFocus(CXFA_FFWidget* pNewWidget);
[[nodiscard]] virtual bool OnKeyDown(XFA_FWL_VKEYCODE dwKeyCode,
Mask<XFA_FWL_KeyFlag> dwFlags);
[[nodiscard]] virtual bool OnChar(uint32_t dwChar,
Mask<XFA_FWL_KeyFlag> dwFlags);
virtual FWL_WidgetHit HitTest(const CFX_PointF& point);
virtual bool CanUndo();
virtual bool CanRedo();
virtual bool CanCopy();
virtual bool CanCut();
virtual bool CanPaste();
virtual bool CanSelectAll();
virtual bool CanDelete();
virtual bool CanDeSelect();
virtual bool Undo();
virtual bool Redo();
virtual absl::optional<WideString> Copy();
virtual absl::optional<WideString> Cut();
virtual bool Paste(const WideString& wsPaste);
virtual void SelectAll();
virtual void Delete();
virtual void DeSelect();
virtual WideString GetText();
virtual FormFieldType GetFormFieldType();
CXFA_Node* GetNode() const { return m_pNode; }
CXFA_ContentLayoutItem* GetLayoutItem() const { return m_pLayoutItem; }
void SetLayoutItem(CXFA_ContentLayoutItem* pItem) { m_pLayoutItem = pItem; }
CXFA_FFPageView* GetPageView() const { return m_pPageView; }
void SetPageView(CXFA_FFPageView* pPageView) { m_pPageView = pPageView; }
CXFA_FFDocView* GetDocView() const { return m_pDocView; }
void SetDocView(CXFA_FFDocView* pDocView) { m_pDocView = pDocView; }
CXFA_FFWidget* GetNextFFWidget() const;
const CFX_RectF& GetWidgetRect() const;
const CFX_RectF& RecacheWidgetRect() const;
void ModifyStatus(Mask<XFA_WidgetStatus> dwAdded,
Mask<XFA_WidgetStatus> dwRemoved);
CXFA_FFDoc* GetDoc();
CXFA_FFApp* GetApp();
CXFA_FFApp::CallbackIface* GetAppProvider();
CFWL_App* GetFWLApp() const;
void InvalidateRect();
bool IsFocused() const {
return GetLayoutItem()->TestStatusBits(XFA_WidgetStatus::kFocused);
}
CFX_PointF Rotate2Normal(const CFX_PointF& point);
bool IsLayoutRectEmpty();
CXFA_LayoutItem* GetParent();
bool IsAncestorOf(CXFA_FFWidget* pWidget);
bool HasEventUnderHandler(XFA_EVENTTYPE eEventType,
CXFA_FFWidgetHandler* pHandler);
bool ProcessEventUnderHandler(CXFA_EventParam* params,
CXFA_FFWidgetHandler* pHandler);
protected:
explicit CXFA_FFWidget(CXFA_Node* pNode);
virtual bool PtInActiveRect(const CFX_PointF& point);
void DrawBorder(CFGAS_GEGraphics* pGS,
CXFA_Box* box,
const CFX_RectF& rtBorder,
const CFX_Matrix& matrix);
void DrawBorderWithFlag(CFGAS_GEGraphics* pGS,
CXFA_Box* box,
const CFX_RectF& rtBorder,
const CFX_Matrix& matrix,
bool forceRound);
CFX_RectF GetRectWithoutRotate();
bool HasVisibleStatus() const;
void EventKillFocus();
bool IsButtonDown();
void SetButtonDown(bool bSet);
cppgc::Member<CXFA_ContentLayoutItem> m_pLayoutItem;
cppgc::Member<CXFA_FFDocView> m_pDocView;
cppgc::Member<CXFA_FFPageView> m_pPageView;
cppgc::Member<CXFA_Node> const m_pNode;
mutable CFX_RectF m_WidgetRect;
};
inline CXFA_FFField* ToField(CXFA_FFWidget* widget) {
return widget ? widget->AsField() : nullptr;
}
#endif // XFA_FXFA_CXFA_FFWIDGET_H_