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