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 MIDLEPRINTEVENTOBSERVER_H |
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20 #define MIDLEPRINTEVENTOBSERVER_H |
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21 |
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22 #include <e32def.h> |
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23 #include <e32std.h> |
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24 |
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25 enum TImgPrintUSBState |
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26 { |
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27 EUSBUndefined = 0, |
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28 EUSBConnected, |
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29 ENOUSBEvent |
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30 }; |
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31 |
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32 // CLASS DEFINITION |
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33 /** |
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34 * |
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35 * Interface to notify UI about idle state events |
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36 * |
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37 */ |
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38 class MIdlePrintEventObserver |
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39 { |
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40 public: // Abstract methods |
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41 |
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42 /** |
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43 * Called when usb printer is disconnected |
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44 */ |
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45 virtual void UsbPrinterDisconnected() = 0; |
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46 |
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47 /** |
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48 * Called when usb printer is connected |
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49 */ |
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50 virtual void UsbPrinterConnected() = 0; |
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51 |
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52 /** |
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53 * Notifies about USB state changes. Method is also used for other events |
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54 * @param aState information about usb state |
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55 */ |
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56 virtual void UsbStateChanged( TImgPrintUSBState aState, TInt aError ) = 0; |
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57 |
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58 virtual void ReadyToContinue() = 0; |
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59 |
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60 /** |
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61 * Notifies that there's happened an asynchronous leave in server process, |
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62 * which in practice means that any ongoing printing should be cancelled |
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63 * |
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64 * @param aError leave code |
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65 */ |
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66 virtual void AsynchronousServerLeave( TInt aError ) = 0; |
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67 }; |
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68 |
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69 #endif // MIDLEPRINTEVENTOBSERVER_H |
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70 |
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71 // End of File |
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