| // 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 iVertAlign); |
| |
| 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 std::optional<WideString> Copy(); |
| virtual std::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_ |
