--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/etshell/ts_clicomp.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,210 @@
+// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "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:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// f32\etshell\ts_clicomp.cpp
+// 
+//
+
+#include "ts_clicomp.h"
+#include "ts_std.h"
+
+CCliCompleter::CCliCompleter()
+	{	
+	}
+	
+CCliCompleter* CCliCompleter::NewL()
+	{
+	CCliCompleter* self = new(ELeave) CCliCompleter();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop();
+	
+	return self;
+	}
+	
+void CCliCompleter::ConstructL()
+	{
+	User::LeaveIfError(iFs.Connect());
+	}
+
+CCliCompleter::~CCliCompleter()
+	{
+	iFs.Close();
+	}
+
+void CCliCompleter::EstablishCompletionContext(TDesC& aBuf, TUint aPos, TDes& aKnownPart)
+	{
+	// Try and locate a double-quote to the left of the current cursor position
+	TInt contextStart = aBuf.Mid(0, aPos).LocateReverse(TChar('"'));	
+	TInt contextEnd;
+	
+	if(contextStart != KErrNotFound)
+		{ // Double-quote found
+		contextEnd = aPos - contextStart;
+		// Grab a copy of the text we will be trying to complete
+		aKnownPart = aBuf.Mid(contextStart, contextEnd);
+		}
+	else
+		{ // Try from the last space character
+		contextStart = aBuf.Mid(0, aPos).LocateReverse(TChar(' '));
+
+		if(contextStart == KErrNotFound)
+			{
+			contextStart = 0;
+			}
+		else
+			{
+			contextStart += 1;
+			}
+			
+		contextEnd = aPos - contextStart;
+
+		aKnownPart = aBuf.Mid(contextStart, contextEnd);
+		aKnownPart.Trim();
+		}
+	}
+
+TBool CCliCompleter::AttemptCompletionL(TDes& aKnownPart, RPointerArray<HBufC>& aAlternatives)
+	{
+	// Turn the known part into something with a path
+	TParse parsedKnownPart;
+
+	// ShellFunction::GetFullPath() modifies the source path so create
+	// a temporary buffer for a throwaway copy
+	TBuf<KMaxPath> tmpKnownPart = aKnownPart;
+	ShellFunction::StripQuotes(tmpKnownPart);
+	tmpKnownPart.Append(KMatchAny);
+	
+	if(ShellFunction::GetFullPath(tmpKnownPart, parsedKnownPart) != KErrNone)
+		{
+		return EFalse;
+		}
+	
+	CDir* entries;	
+	if(iFs.GetDir(parsedKnownPart.FullName(), KEntryAttNormal | KEntryAttDir, ESortByName, entries) != KErrNone)
+		{
+		return EFalse;
+		}
+
+	CleanupStack::PushL(entries);
+
+	TEntry entry;
+	TBool result;
+
+	if(entries->Count() == 1)
+		{
+		entry = (*entries)[0];
+	
+		TPtrC completedPart;	
+		completedPart.Set(entry.iName.Mid(parsedKnownPart.NameAndExt().Length() - 1));
+		aKnownPart.Append(completedPart);
+
+		if(entry.IsDir()) aKnownPart.Append(KPathDelimiter);
+		
+		if(((TUint)aKnownPart[0] != TChar('"')) && 
+			(aKnownPart.LocateF(TChar(' ')) != KErrNotFound))
+			{
+			aKnownPart.Insert(0, _L("\""));
+			}
+		
+		result = ETrue;
+		}
+	else if(entries->Count() > 1)
+		{
+		TInt entryIdx;		
+		
+		// Find the smallest matching entry so as to not run off the end of
+		// an index when trying to establish the greatest overlap between the
+		// matches.  We're also caching the raw entries in a seperate array so
+		// we can use them when displaying the ambiguous matches.
+		TInt minLength = KMaxFileName;		
+		
+		for(entryIdx=0;entryIdx<entries->Count();entryIdx++)
+			{
+			entry = (*entries)[entryIdx];
+			
+			HBufC* buf = HBufC::NewLC(entry.iName.Length() + 100);
+			*buf = entry.iName;
+			if(entry.IsDir()) 
+				{
+				buf->Des().Append(KPathDelimiter);
+				}
+			aAlternatives.AppendL(buf);
+			
+			if(entry.iName.Length() < minLength)
+				{
+				minLength = entry.iName.Length();
+				}
+			}
+		CleanupStack::Pop(entries->Count());
+			
+		// Find the greatest overlap between the matches.  Even though we can't
+		// get a final match we can at least make a best-effort completion based 
+		// on anything they've not told us but which matches anyway.
+		
+		// There's an asterisk on the end of the parsed filename that we want
+		// to disregard when calculating the length of what we already know.
+		TInt knownPartLength = parsedKnownPart.NameAndExt().Length() - 1;
+		
+		TInt matchLength = knownPartLength;
+		TBool matching = ETrue;
+		while(matching && matchLength < minLength)
+			{			
+			for(entryIdx=1;entryIdx<entries->Count();entryIdx++)
+				{
+				if(((*entries)[0].iName[matchLength]) != ((*entries)[entryIdx].iName[matchLength]))
+					{
+					matching = EFalse;
+					}
+				}
+			if(matching) matchLength++;
+			}
+
+		if(matchLength > knownPartLength)
+			{
+			entry = (*entries)[0];
+			
+			TUint additionalKnownStart = knownPartLength;
+			TUint additionalKnownLength = matchLength - knownPartLength;
+			
+			aKnownPart.Append(entry.iName.Mid(additionalKnownStart, additionalKnownLength));
+			}
+
+		result = EFalse;
+		}
+	else	
+		{
+		result = EFalse;
+		}
+	
+	CleanupStack::PopAndDestroy(entries);
+	
+	return result;
+	}
+
+
+/*
+	Note: method has the potential to modify the size of aAlternatives as 
+	a side-effect of the call to ShellFunction::AlignTextIntoColumns().
+*/
+void CCliCompleter::DisplayAlternatives(RPointerArray<HBufC>& aAlternatives)
+	{
+	ShellFunction::AlignTextIntoColumns(aAlternatives);
+	
+	CShell::NewLine();
+	for(TInt entryIdx=0;entryIdx<aAlternatives.Count();entryIdx++)
+		{
+		CShell::OutputStringToConsole(EFalse, *aAlternatives[entryIdx]);
+		CShell::NewLine();
+		}
+	}