1 /* |
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2 * Copyright (c) 2004-2007 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: |
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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 CDISCOVERYGUARD_H |
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20 #define CDISCOVERYGUARD_H |
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21 |
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22 #include <e32base.h> |
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23 |
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24 class RImagePrintClient; |
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25 class MPrinterDiscoveryObserver; |
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26 class TDiscoveryGuardData; |
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27 |
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28 class CDiscoveryGuard : public CActive |
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29 { |
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30 public: |
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31 |
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32 /** |
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33 * 2-phase constructor |
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34 * |
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35 * @param aClient client for communication with server process |
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36 * @return new object |
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37 */ |
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38 IMPORT_C static CDiscoveryGuard* NewL( RImagePrintClient& aClient ); |
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39 |
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40 /** |
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41 * Destructor |
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42 */ |
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43 IMPORT_C ~CDiscoveryGuard(); |
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44 |
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45 public: |
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46 |
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47 /** |
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48 * Start printer discovery (and watching for discovery events) |
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49 * for one or several protocols |
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50 * |
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51 * @param aObserver observer for notifications about discovery events |
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52 * @param aProtocols OR:ed protocol ids |
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53 * @return error code |
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54 */ |
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55 IMPORT_C TInt Guard( MPrinterDiscoveryObserver& aObserver, TUint aProtocols ); |
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56 |
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57 private: |
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58 |
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59 CDiscoveryGuard( RImagePrintClient& aClient ); |
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60 void ConstructL(); |
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61 |
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62 private: // from CActive |
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63 |
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64 void RunL(); |
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65 void DoCancel(); |
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66 |
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67 private: // data |
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68 |
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69 RImagePrintClient& iClient; |
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70 MPrinterDiscoveryObserver* iObserver; |
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71 TDiscoveryGuardData* iData; |
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72 }; |
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73 |
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74 |
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75 #endif // CDISCOVERYGUARD_H |
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76 |
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77 // End of File |
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