--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libraries/lineeditor/inc/line_editor.h	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,203 @@
+// line_editor.h
+// 
+// Copyright (c) 2006 - 2010 Accenture. All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+// 
+// Initial Contributors:
+// Accenture - Initial contribution
+//
+
+#ifndef __LINE_EDITOR_H__
+#define __LINE_EDITOR_H__
+
+#include <e32std.h>
+#include <e32base.h>
+#include <e32keys.h>
+#include <fshell/line_editor_observer.h>
+#include <fshell/abstract_console_writer.h>
+#include <fshell/ioutils.h>
+
+const TInt KMaxLineLength = 256;
+#define CTRL(x) ((x)-'a'+1)
+
+class CLineHistory;
+
+//
+// MConsoleScrollObserver.
+//
+
+class MConsoleScrollObserver
+	{
+public:
+	virtual void CsoHandleConsoleScrolled() = 0;
+	};
+	
+//
+// RConsole.
+//
+
+class RConsole
+	{
+public:
+	enum TCursorMode
+		{
+		EInsert,
+		EOverwrite
+		};
+public:
+	RConsole(MAbstractConsoleWriter& aStdout);
+	void Close();
+	void Start();
+	void Refresh();
+	void Write(const TDesC& aDes);
+	void SetCursorPosAbs(const TPoint& aPoint);
+	void SetCursorPosRel(const TPoint& aPoint);
+	void MoveCursorLeft();
+	void MoveCursorRight();
+	void NewLine();
+	void SetCursorMode(TCursorMode aMode);
+	void SetCursorVisible(TBool aVisible);
+	void ClearToEndOfLine();
+	void Clear();
+	TPoint PosFrom(const TPoint& aStartPos, TInt aLength) const;
+	TPoint CursorPos() const;
+	TInt AddObserver(MConsoleScrollObserver& aObserver);
+	void RemoveObserver(MConsoleScrollObserver& aObserver);
+	TSize Size() const;
+private:
+	void CursorLeft();
+	void CursorRight();
+	void LineFeed();
+	void CarriageReturn();
+	void NotifyScrollObservers();
+private:
+	TSize iSize;
+	MAbstractConsoleWriter& iStdout;
+	RPointerArray<MConsoleScrollObserver> iScrollObservers;
+	TPoint iCursorPos;
+	TCursorMode iCursorMode;
+	TBool iCursorVisible;
+	};
+
+
+//
+// TConsoleLine.
+//
+
+class TConsoleLine : public MConsoleScrollObserver
+	{
+public:
+	IMPORT_C TConsoleLine(RConsole& aConsole);
+	IMPORT_C void Start(const TDesC& aPrompt);
+	IMPORT_C void Start(const TDesC& aPrompt, const TDesC& aInitialInput);
+	IMPORT_C void Replace(const TDesC& aDes);
+	IMPORT_C void Replace(TInt aFrom, const TDesC& aDes);
+	IMPORT_C void Insert(TChar aChar);
+	IMPORT_C void Overwrite(TChar aChar);
+	IMPORT_C void Redraw();
+	IMPORT_C void End();
+	IMPORT_C void DeleteLeft();
+	IMPORT_C void DeleteRight();
+	IMPORT_C void CursorLeft();
+	IMPORT_C void CursorRight();
+	IMPORT_C void CursorPreviousWord();
+	IMPORT_C void CursorNextWord();
+	IMPORT_C void CursorBeginning();
+	IMPORT_C void CursorEnd();
+	IMPORT_C void PrintCompletionPossibilitiesL(const TDesC& aPossibilities);
+	IMPORT_C TPtrC Contents() const;
+	IMPORT_C TPtrC ContentsToCursor() const;
+public:
+	void Hide();
+	void Show();
+	void SetCursorPosition(TInt aPosition);
+	void Abort();
+private:
+	void Restart(const TDesC& aPrompt);
+private: // From MConsoleScrollObserver.
+	virtual void CsoHandleConsoleScrolled();
+private:
+	RConsole& iConsole;
+	TBuf<KMaxLineLength> iBuf;
+	TInt iPromptLength;
+	TInt iBufPos;
+	TPoint iStartPos;
+	TBool iStarted;
+	TBool iHidden;
+	};
+
+
+//
+// CLineEditor.
+//
+
+class CLineEditor : public CBase
+	{
+public:
+	IMPORT_C static CLineEditor* NewL(	RFs& aFs, 
+										MAbstractConsoleWriter& aStdout, 
+										MLineEditorObserver& aObserver, 
+										MLineCompleter& aCompleter,
+										const TDesC& aConsoleHistoryFile);
+	IMPORT_C ~CLineEditor();
+	IMPORT_C void HandleKey(TUint aKeyCode, TUint aModifiers);
+	IMPORT_C void Start(const TDesC& aPrompt);
+	IMPORT_C void Start(const TDesC& aPrompt, const TDesC& aInitialInput);
+	IMPORT_C void Abort();
+	
+	IMPORT_C void Redraw();
+	IMPORT_C void RemovePromptAndUserInput();
+	IMPORT_C void ReinstatePromptAndUserInput();
+private:
+	CLineEditor(MAbstractConsoleWriter& aStdout, MLineEditorObserver& aObserver, MLineCompleter& aCompleter);
+	void ConstructL(RFs& aFs, const TDesC& aConsoleHistoryFile);
+	void InsertChar(TChar aChar);
+	void HandleEnter();
+	void HandleBackspace();
+	void HandleTab();
+	void HandleTabL();
+	void HandleDelete();
+	void HandleLeftArrow();
+	void HandleRightArrow();
+	void HandleUpArrow();
+	void HandleDownArrow();
+	void HandlePreviousWord();
+	void HandleNextWord();
+	void HandleHome();
+	void HandleEnd();
+	void HandlePageUp();
+	void HandlePageDown();
+	void HandleInsert();
+	void HandleEscape();
+	void HandleF8Completion(); // DOS-style F8 line completion
+	void ReplaceLine(const TDesC& aNewLine);
+private:
+	enum TState
+		{
+		EIdle,
+		EEditing,
+		ERecallingHistory
+		};
+	enum TMode
+		{
+		EInsert,
+		EOverwrite
+		};
+private:
+	void SetState(TState aState);
+private:
+	MLineEditorObserver& iObserver;
+	MLineCompleter& iCompleter;
+	RConsole iConsole;
+	TConsoleLine iLine;
+	TBuf<KMaxLineLength> iLineBackup;
+	CLineHistory* iHistory;
+	TState iState;
+	TMode iMode;
+	};
+
+
+#endif // __LINE_EDITOR_H__