// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_
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#define XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_
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#include <deque>
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#include <memory>
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#include <vector>
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#include "xfa/fde/ifde_txtedtdorecord.h"
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#include "xfa/fde/ifde_txtedtengine.h"
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#include "xfa/fwl/basewidget/ifwl_scrollbar.h"
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#include "xfa/fwl/core/fwl_widgetimp.h"
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#include "xfa/fxgraphics/cfx_path.h"
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class CFWL_EditImp;
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class CFWL_EditImpDelegate;
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class CFWL_MsgActivate;
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class CFWL_MsgDeactivate;
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class CFWL_MsgMouse;
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class CFWL_WidgetImpDelegate;
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class CFWL_WidgetImpProperties;
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class IFWL_Caret;
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class CFWL_EditImp : public CFWL_WidgetImp {
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public:
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CFWL_EditImp(const CFWL_WidgetImpProperties& properties, IFWL_Widget* pOuter);
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~CFWL_EditImp() override;
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// CFWL_WidgetImp:
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FWL_Error GetClassName(CFX_WideString& wsClass) const override;
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FWL_Type GetClassID() const override;
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FWL_Error Initialize() override;
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FWL_Error Finalize() override;
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FWL_Error GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE) override;
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FWL_Error SetWidgetRect(const CFX_RectF& rect) override;
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FWL_Error Update() override;
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FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
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void SetStates(uint32_t dwStates, FX_BOOL bSet = TRUE) override;
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FWL_Error DrawWidget(CFX_Graphics* pGraphics,
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const CFX_Matrix* pMatrix = nullptr) override;
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FWL_Error SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) override;
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virtual FWL_Error SetText(const CFX_WideString& wsText);
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virtual int32_t GetTextLength() const;
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virtual FWL_Error GetText(CFX_WideString& wsText,
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int32_t nStart = 0,
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int32_t nCount = -1) const;
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virtual FWL_Error ClearText();
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virtual int32_t GetCaretPos() const;
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virtual int32_t SetCaretPos(int32_t nIndex, FX_BOOL bBefore = TRUE);
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virtual FWL_Error AddSelRange(int32_t nStart, int32_t nCount = -1);
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virtual int32_t CountSelRanges();
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virtual int32_t GetSelRange(int32_t nIndex, int32_t& nStart);
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virtual FWL_Error ClearSelections();
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virtual int32_t GetLimit();
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virtual FWL_Error SetLimit(int32_t nLimit);
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virtual FWL_Error SetAliasChar(FX_WCHAR wAlias);
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virtual FWL_Error Insert(int32_t nStart,
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const FX_WCHAR* lpText,
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int32_t nLen);
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virtual FWL_Error DeleteSelections();
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virtual FWL_Error DeleteRange(int32_t nStart, int32_t nCount = -1);
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virtual FWL_Error Replace(int32_t nStart,
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int32_t nLen,
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const CFX_WideStringC& wsReplace);
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virtual FWL_Error DoClipboard(int32_t iCmd);
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virtual FX_BOOL Copy(CFX_WideString& wsCopy);
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virtual FX_BOOL Cut(CFX_WideString& wsCut);
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virtual FX_BOOL Paste(const CFX_WideString& wsPaste);
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virtual FX_BOOL Delete();
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virtual FX_BOOL Redo(const IFDE_TxtEdtDoRecord* pRecord);
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virtual FX_BOOL Undo(const IFDE_TxtEdtDoRecord* pRecord);
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virtual FX_BOOL Undo();
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virtual FX_BOOL Redo();
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virtual FX_BOOL CanUndo();
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virtual FX_BOOL CanRedo();
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virtual FWL_Error SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant);
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virtual FWL_Error SetOuter(IFWL_Widget* pOuter);
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virtual FWL_Error SetNumberRange(int32_t iMin, int32_t iMax);
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virtual FWL_Error SetBackgroundColor(uint32_t color);
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virtual FWL_Error SetFont(const CFX_WideString& wsFont, FX_FLOAT fSize);
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void On_CaretChanged(CFDE_TxtEdtEngine* pEdit,
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int32_t nPage,
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FX_BOOL bVisible = true);
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void On_TextChanged(CFDE_TxtEdtEngine* pEdit,
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FDE_TXTEDT_TEXTCHANGE_INFO& ChangeInfo);
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void On_SelChanged(CFDE_TxtEdtEngine* pEdit);
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FX_BOOL On_PageLoad(CFDE_TxtEdtEngine* pEdit,
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int32_t nPageIndex,
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int32_t nPurpose);
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FX_BOOL On_PageUnload(CFDE_TxtEdtEngine* pEdit,
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int32_t nPageIndex,
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int32_t nPurpose);
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void On_AddDoRecord(CFDE_TxtEdtEngine* pEdit, IFDE_TxtEdtDoRecord* pRecord);
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FX_BOOL On_Validate(CFDE_TxtEdtEngine* pEdit, CFX_WideString& wsText);
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void SetScrollOffset(FX_FLOAT fScrollOffset);
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FX_BOOL GetSuggestWords(CFX_PointF pointf,
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std::vector<CFX_ByteString>& sSuggest);
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FX_BOOL ReplaceSpellCheckWord(CFX_PointF pointf,
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const CFX_ByteStringC& bsReplace);
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protected:
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friend class CFWL_TxtEdtEventSink;
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friend class CFWL_EditImpDelegate;
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void DrawTextBk(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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const CFX_Matrix* pMatrix = nullptr);
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void DrawContent(CFX_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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const CFX_Matrix* pMatrix = nullptr);
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void UpdateEditEngine();
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void UpdateEditParams();
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void UpdateEditLayout();
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FX_BOOL UpdateOffset();
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FX_BOOL UpdateOffset(IFWL_ScrollBar* pScrollBar, FX_FLOAT fPosChanged);
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void UpdateVAlignment();
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void UpdateCaret();
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IFWL_ScrollBar* UpdateScroll();
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void Layout();
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void LayoutScrollBar();
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void DeviceToEngine(CFX_PointF& pt);
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void InitScrollBar(FX_BOOL bVert = TRUE);
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void InitEngine();
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virtual void ShowCaret(FX_BOOL bVisible, CFX_RectF* pRect = nullptr);
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FX_BOOL ValidateNumberChar(FX_WCHAR cNum);
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void InitCaret();
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void ClearRecord();
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FX_BOOL IsShowScrollBar(FX_BOOL bVert);
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FX_BOOL IsContentHeightOverflow();
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int32_t AddDoRecord(IFDE_TxtEdtDoRecord* pRecord);
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void ProcessInsertError(int32_t iError);
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void DrawSpellCheck(CFX_Graphics* pGraphics,
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const CFX_Matrix* pMatrix = nullptr);
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void AddSpellCheckObj(CFX_Path& PathData,
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int32_t nStart,
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int32_t nCount,
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FX_FLOAT fOffSetX,
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FX_FLOAT fOffSetY);
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int32_t GetWordAtPoint(CFX_PointF pointf, int32_t& nCount);
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CFX_RectF m_rtClient;
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CFX_RectF m_rtEngine;
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CFX_RectF m_rtStatic;
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FX_FLOAT m_fVAlignOffset;
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FX_FLOAT m_fScrollOffsetX;
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FX_FLOAT m_fScrollOffsetY;
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CFDE_TxtEdtEngine* m_pEdtEngine;
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FX_BOOL m_bLButtonDown;
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int32_t m_nSelStart;
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int32_t m_nLimit;
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FX_FLOAT m_fSpaceAbove;
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FX_FLOAT m_fSpaceBelow;
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FX_FLOAT m_fFontSize;
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FX_ARGB m_argbSel;
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FX_BOOL m_bSetRange;
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int32_t m_iMin;
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int32_t m_iMax;
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std::unique_ptr<IFWL_ScrollBar> m_pVertScrollBar;
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std::unique_ptr<IFWL_ScrollBar> m_pHorzScrollBar;
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std::unique_ptr<IFWL_Caret> m_pCaret;
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CFX_WideString m_wsCache;
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uint32_t m_backColor;
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FX_BOOL m_updateBackColor;
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CFX_WideString m_wsFont;
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std::deque<std::unique_ptr<IFDE_TxtEdtDoRecord>> m_DoRecords;
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int32_t m_iCurRecord;
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int32_t m_iMaxRecord;
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};
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class CFWL_EditImpDelegate : public CFWL_WidgetImpDelegate {
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public:
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CFWL_EditImpDelegate(CFWL_EditImp* pOwner);
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void OnProcessMessage(CFWL_Message* pMessage) override;
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void OnProcessEvent(CFWL_Event* pEvent) override;
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void OnDrawWidget(CFX_Graphics* pGraphics,
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const CFX_Matrix* pMatrix = nullptr) override;
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protected:
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void DoActivate(CFWL_MsgActivate* pMsg);
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void DoDeactivate(CFWL_MsgDeactivate* pMsg);
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void DoButtonDown(CFWL_MsgMouse* pMsg);
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void OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet = TRUE);
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void OnLButtonDown(CFWL_MsgMouse* pMsg);
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void OnLButtonUp(CFWL_MsgMouse* pMsg);
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void OnButtonDblClk(CFWL_MsgMouse* pMsg);
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void OnMouseMove(CFWL_MsgMouse* pMsg);
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void OnKeyDown(CFWL_MsgKey* pMsg);
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void OnChar(CFWL_MsgKey* pMsg);
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FX_BOOL OnScroll(IFWL_ScrollBar* pScrollBar, uint32_t dwCode, FX_FLOAT fPos);
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void DoCursor(CFWL_MsgMouse* pMsg);
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CFWL_EditImp* m_pOwner;
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};
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#endif // XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_
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