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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: This implements TUsbIndicatorHandler class. |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <e32std.h> |
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20 #include <AknNotifySignature.h> // SAknNotifierPackage |
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21 #include <avkon.hrh> //EAknIndicatorUSBConnection |
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22 #include "tusbindicatorhandler.h" |
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23 #include "debug.h" |
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24 |
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25 // --------------------------------------------------------------------------- |
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26 // C++ Constructor |
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27 // --------------------------------------------------------------------------- |
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28 // |
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29 TUsbIndicatorHandler::TUsbIndicatorHandler() |
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30 : iDevStateB4Suspend( EUsbDeviceStateUndefined ) |
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31 , iUsbIndicator(EFalse) |
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32 { |
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33 } |
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34 |
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35 // --------------------------------------------------------------------------- |
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36 // Change USB Indicator |
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37 // --------------------------------------------------------------------------- |
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38 // |
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39 void TUsbIndicatorHandler::HandleDeviceStateChange( TUsbDeviceState aStateOld, |
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40 TUsbDeviceState aStateNew ) |
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41 { |
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42 LOG_FUNC |
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43 |
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44 LOG2( "USB device state changed: %d ==> %d", aStateOld, aStateNew ); |
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45 |
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46 if ( EUsbDeviceStateConfigured == aStateNew ) // Entering configed state |
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47 { |
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48 // filter out case of configed -> suspended -> configed |
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49 if ( ( EUsbDeviceStateSuspended != aStateOld ) || |
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50 ( EUsbDeviceStateConfigured != iDevStateB4Suspend) ) |
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51 { |
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52 ShowUsbIndicator( ETrue ); |
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53 } |
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54 } |
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55 else if ( EUsbDeviceStateSuspended == aStateNew ) |
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56 // If current state is suspend, we do not change the indicator, but save |
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57 // the previous state |
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58 { |
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59 iDevStateB4Suspend = aStateOld; |
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60 } |
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61 else // New device state is not configured, nor suspended |
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62 { |
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63 // Hide USB indicator if previous state is either configured, or |
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64 // suspended AND state before is not configured |
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65 if( ( EUsbDeviceStateConfigured == aStateOld ) || |
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66 ( ( EUsbDeviceStateSuspended == aStateOld ) && |
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67 ( EUsbDeviceStateConfigured == iDevStateB4Suspend ) ) ) |
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68 { |
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69 ShowUsbIndicator( EFalse ); |
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70 } |
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71 } |
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72 } |
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73 |
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74 // --------------------------------------------------------------------------- |
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75 // Show USB Indicator |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 void TUsbIndicatorHandler::ShowUsbIndicator( TInt aUsbIndicatorState ) |
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79 { |
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80 LOG_FUNC |
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81 |
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82 iUsbIndicator = aUsbIndicatorState; |
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83 LOG1( "USB indicator state %d", aUsbIndicatorState ); |
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84 RNotifier notifier; |
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85 TInt err = notifier.Connect(); |
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86 if ( KErrNone == err ) |
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87 { |
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88 TPckgBuf< SAknNotifierPackage<SAknSmallIndicatorParams> > pckg; |
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89 pckg().iParamData.iSmallIndicatorUid = |
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90 TUid::Uid( EAknIndicatorUSBConnection ); |
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91 pckg().iParamData.iValue = aUsbIndicatorState ? |
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92 EAknIndicatorStateOn : EAknIndicatorStateOff ; |
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93 notifier.StartNotifier( KAknSmallIndicatorUid, pckg ); |
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94 notifier.Close(); |
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95 } |
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96 else |
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97 { |
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98 LOG1( "RNotifier::Connect error: %d", err ); |
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99 } |
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100 } |
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101 |
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102 // End of file |