uifw/AknGlobalUI/AknCapServer/src/AknMemoryCardDialogImpl.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 15 Mar 2010 12:41:34 +0200
branchRCL_3
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parent 0 2f259fa3e83a
child 7 08e69e956a8c
permissions -rw-r--r--
Revision: 201009 Kit: 201010
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/*
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* Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  
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*
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*/
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#include <AknQueryDialog.h>
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#include <aknmemorycardui.rsg>
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#include <StringLoader.h>
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#include <aknsoundsystem.h>
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#include <secondarydisplay/AknSecondaryDisplayDefs.h>
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#include "AknCapServerEntry.h"
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#include "AknCapServerDefs.h"
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#include "AknMemoryCardDialogImpl.h"
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class CAknCodeQuery: public CAknTextQueryDialog
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    {
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public:
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    CAknCodeQuery(
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        TDes& aDataText, 
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        const CAknTextQueryDialog::TTone& aTone = CAknTextQueryDialog::ENoTone);
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    TBool OkToExitL(TInt aButtonId);
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    void TryExit(TInt aButtonId); 
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    void SetObserver(CAknCodeQuery** aSelf, CAknMMCPasswordRequester* aObserver );
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    ~CAknCodeQuery(){};
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private:
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    CAknMMCPasswordRequester* iObserver;
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    CAknCodeQuery** iSelf;
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    };
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CAknMMCPasswordRequester::CAknMMCPasswordRequester()
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    {
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    }
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CAknMMCPasswordRequester* CAknMMCPasswordRequester::NewL()
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    {
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    CAknMMCPasswordRequester* self = new (ELeave) CAknMMCPasswordRequester();
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    CleanupStack::Pop(); //self
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    return self;
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    }
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void CAknMMCPasswordRequester::ConstructL()
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    {
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    iResFileLdr.AddResourceFileL();
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    }
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CAknMMCPasswordRequester::~CAknMMCPasswordRequester()
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    {
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    if (iQuery)
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        {
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        delete iQuery;
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        CompleteAllMessages(KErrDied);
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        }
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    iResFileLdr.DeleteResourceFile();
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    delete iPrompt;
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    iPrompt = NULL;
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    iMessages.Close();
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    }
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void CAknMMCPasswordRequester::ClientExit( TInt aClientID, TBool aCompleteWithCancel )
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    {
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    for(TInt i = iMessages.Count()-1; i >= 0; i--)
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        {
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        if (iMessages[i].iClientId == aClientID)
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            {
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            if (aCompleteWithCancel)
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                {
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                iMessages[i].iMessage.Complete(KErrCancel);
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                }
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            iMessages.Remove(i);
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            break;
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            }
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        }
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    }
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void CAknMMCPasswordRequester::CompleteAllMessages(TInt aReason)
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   {
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   for(TInt i = iMessages.Count()-1; i >= 0; i--)
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        {
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        iMessages[i].iMessage.Complete(aReason);
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        iMessages.Remove(i);
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        }
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    }
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void CAknMMCPasswordRequester::AppendQueueItemL(const RMessagePtr2& aMessage, TInt aClientID)
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    {
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    if (!aClientID)
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        {
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        // recursive call for start (there must be active message before this can occur)
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        __ASSERT_ALWAYS(iMessages.Count(), User::Invariant());
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        return; 
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        }
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    for(TInt i = iMessages.Count()-1; i >= 0; i--)
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        {
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        if (iMessages[i].iClientId == aClientID)
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   114
            {
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   115
            User::Leave(KErrAlreadyExists);
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   116
            }
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   117
        }
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   118
    User::LeaveIfError(iMessages.Append(TMessageWithClientId(aMessage, aClientID)));
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    }   
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   120
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   121
void CAknMMCPasswordRequester::StartL(TInt aDrive, TBool aStore, const RMessagePtr2& aMessage, 
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    TInt aClientID)
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   123
    {
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    // Will leave if same client tries to activate new request while old pending, basically should
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   125
    // panic the client.
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   126
    AppendQueueItemL(aMessage, aClientID); 
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   127
    
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   128
    if (iQuery)
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        {
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        return;
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   131
        }
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   132
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   133
    iStore = aStore;
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   134
    iDriveNumber = aDrive;
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   135
    
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   136
    SetPromptL();
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   137
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   138
    iPassWd.FillZ(); // this is safe as we are derived from 
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   139
                     // CBase and this is done for every unlock operation
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   140
    iPassWd.Zero();
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   141
    
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   142
    iQuery = new (ELeave) CAknCodeQuery(iPassWd);
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   143
    iQuery->PrepareLC(R_MMC_PASSWORD_QUERY);
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   144
    iQuery->SetObserver(&iQuery,this);
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   145
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   146
    if (iPrompt)
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   147
        {
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   148
        iQuery->SetPromptL(*iPrompt);
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   149
        }
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   150
    
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   151
    CAknKeySoundSystem* sounds = iAvkonAppUi->KeySounds();
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    // we are assuming that there is no need to bring sounds forwards more than once per operation
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   153
    if (iNumberOfAttempts == 0 && sounds ) 
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   154
        {
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   155
        sounds->BringToForeground();
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   156
        }
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   157
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   158
    iQuery->PublishDialogL(EAknMemoryCardQuery);
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   159
    iQuery->RunLD();
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   160
    // block apps key after it is sure that OkToExitL will be called for query
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   161
    ((CAknCapAppServerAppUi*)iAvkonAppUi)->SuppressAppSwitchingL(EAknAppsKeyBlockAddCount, 0);
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   162
    }
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   163
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   164
void CAknMMCPasswordRequester::Cancel(TInt aClientID)
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   165
    {
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   166
    if ( iQuery )
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   167
        {
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   168
        if (iMessages.Count() == 1)
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   169
            {
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   170
            iQuery->TryExit( EEikBidCancel ); // completes the message        
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   171
            }
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   172
        else
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   173
            {
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   174
            ClientExit(aClientID, ETrue );
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   175
            }
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   176
        }
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   177
    }
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   178
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   179
void CAknMMCPasswordRequester::SetPromptL()
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    {
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   181
    delete iPrompt;
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   182
    iPrompt = NULL;
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   183
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   184
    if ( iNumberOfAttempts > 0 ) 
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   185
        {
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   186
        iPrompt = StringLoader::LoadL(R_QTN_MEM_CARD_UNLOCK_ERROR); 
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   187
        }
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   188
    else 
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   189
        {
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   190
        iPrompt = StringLoader::LoadL(R_QTN_MEM_CARD_UNLOCK_PROMPT);
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   191
        }
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   192
    }
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   193
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   194
void CAknMMCPasswordRequester::UnlockCard(TBool aAccept)
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   195
    {
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   196
    if ( aAccept ) 
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   197
        {
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   198
        TMediaPassword p;
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   199
        p.FillZ(KMaxMediaPassword); // not sure if fileserver uses buffer length correctly
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   200
        p.Zero();
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diff changeset
   201
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   202
        const TUint8 *pt8Src = reinterpret_cast<const TUint8 *>(iPassWd.Ptr());
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   203
        // We use this to check whether there is something else than zeros in ttext8 array left
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   204
        const TUint16 *pt16Src = iPassWd.Ptr();
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parents:
diff changeset
   205
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   206
        for (TInt j = 0; j < KMaxMediaPassword / 2 && pt16Src[j]; ++j)
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   207
            {
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   208
            p.Append(pt8Src[j << 1]);
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parents:
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   209
            p.Append(pt8Src[(j << 1) + 1]);
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   210
            }
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diff changeset
   211
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   212
        iNumberOfAttempts++;
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   213
        TInt err = CCoeEnv::Static()->FsSession().UnlockDrive(iDriveNumber,p,ETrue);
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   214
#ifdef _DEBUG
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   215
        RDebug::Print(_L("CAknMMCPasswordRequester::Ulock ret: %D"),err);
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   216
#endif
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   217
        if (err == KErrNone || err == KErrAlreadyExists)
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   218
            {
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   219
            CompleteAllMessages(KErrNone);
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parents:
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   220
            iNumberOfAttempts = 0;
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parents:
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   221
            }
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   222
        else 
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parents:
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   223
            {
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parents:
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   224
            // borrow top most message, it is not used anyway                
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parents:
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   225
            TRAPD (err, StartL(iDriveNumber,iStore,iMessages[0].iMessage)); 
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            if (err)
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                {
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                CompleteAllMessages(err); // To ensure that old instance of query will be deleted. 
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                }
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            iNumberOfAttempts = 0;
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            return;
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            }
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        }
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    else // user or system cancel 
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        {
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        CompleteAllMessages(KErrCancel);
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        iNumberOfAttempts = 0;
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        }
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    }
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CAknCodeQuery::CAknCodeQuery(TDes& aDataText, const CAknTextQueryDialog::TTone& aTone)
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    :CAknTextQueryDialog(aDataText, aTone)
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    {
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    }
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TBool CAknCodeQuery::OkToExitL(TInt aButtonId)
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    {
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    TBool result = (aButtonId == EAknSoftkeyOk||aButtonId == EEikBidOk);
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    if ( result )
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        {
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        CAknQueryControl* control = QueryControl();
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        if (control)
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            {
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            control->GetText(iDataText);
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            }
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        }
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    (*iSelf) = 0;
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    iObserver->UnlockCard( result ); // synch, ie. query will be deleted after this returns !
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    ((CAknCapAppServerAppUi*)iAvkonAppUi)->SuppressAppSwitchingL(EAknAppsKeyBlockDecreaseCount, 0);
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    return ETrue;
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    }
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void CAknCodeQuery::SetObserver(CAknCodeQuery** aSelf, CAknMMCPasswordRequester* aObserver )
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    {
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    iObserver = aObserver;
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    iSelf = aSelf;
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    }
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void CAknCodeQuery::TryExit(TInt aButtonId)
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    { 
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    TRAP_IGNORE( TryExitL(aButtonId));
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    }
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// End of file