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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: Header file for class TUsbIndicatorHandler |
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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 #ifndef TUSBINDICATORHANDLER_H |
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20 #define TUSBINDICATORHANDLER_H |
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21 |
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22 #include <bldvariant.hrh> |
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23 #include <usbstates.h> |
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24 |
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25 |
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26 /** |
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27 * USB indicator handler class for device side. |
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28 * |
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29 * This class shows USB indicator when device state changes to Configured, |
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30 * and hides USB indicator when device leaves Configured state. Suspended |
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31 * state does not change the indicator. |
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32 * |
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33 * @since TB9.2 |
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34 */ |
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35 NONSHARABLE_CLASS( TUsbIndicatorHandler ) |
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36 { |
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37 |
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38 public: |
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39 /** |
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40 * Constructor |
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41 */ |
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42 TUsbIndicatorHandler(); |
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43 |
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44 /** |
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45 * Set USB indicator (On/Off, maybe more in future) according to |
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46 * the change of USB device state |
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47 * |
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48 * @param aStateOld previous USB device state |
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49 * @param aStateNew current USB device state |
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50 */ |
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51 void HandleDeviceStateChange( TUsbDeviceState aStateOld, |
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52 TUsbDeviceState aStateNew ); |
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53 |
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54 private: |
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55 /** |
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56 * Show USB indicator (On/Off, maybe more in future) |
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57 * |
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58 * @since TB9.2 |
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59 * @param aUsbIndicatorState the state of the indicator, 0: OFF, 1: ON |
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60 */ |
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61 void ShowUsbIndicator( TInt aUsbIndicatorState ); |
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62 |
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63 private: |
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64 /** |
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65 * The device state before suspend. |
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66 * Used to filter out suspend from others; |
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67 */ |
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68 TUsbDeviceState iDevStateB4Suspend; |
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69 |
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70 ///////////////////////////////////////////////////////////////////////// |
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71 // Test code |
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72 friend class CtTUsbIndicatorHandler; |
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73 TBool iUsbIndicator; |
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74 // |
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75 ///////////////////////////////////////////////////////////////////////// |
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76 |
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77 }; |
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78 |
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79 |
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80 #endif // TUSBINDICATORHANDLER_H |
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81 |
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82 // End of File |