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1 /* |
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2 * Copyright (c) 2008-2009 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: Definition of CGlxtnVolumeDatabase |
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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 |
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20 |
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21 /** |
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22 * @internal reviewed 30/07/2007 by Simon Brooks |
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23 */ |
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24 |
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25 #ifndef M_GLXTNVOLUMEDATABASEOBSERVER_H |
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26 #define M_GLXTNVOLUMEDATABASEOBSERVER_H |
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27 |
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28 #include "glxtnstd.h" // For TGlxImageDataFormat |
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29 |
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30 /** |
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31 * Typesafe thumbnail ID. |
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32 */ |
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33 class TGlxtnThumbnailIdTypeBase {}; // Don't use this |
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34 typedef TGlxId<TGlxtnThumbnailIdTypeBase> TGlxtnThumbnailId; // Use this |
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35 |
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36 /** |
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37 * Interface to receive callbacks from a CGlxtnVolumeDatabase. |
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38 * |
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39 * @author Dan Rhodes |
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40 * @ingroup glx_thumbnail_creator |
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41 */ |
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42 class MGlxtnVolumeDatabaseObserver |
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43 { |
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44 public: |
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45 /** |
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46 * Called when a database operation cannot be completed. |
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47 * @param aError Error code. |
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48 */ |
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49 virtual void HandleDatabaseError(TInt aError) = 0; |
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50 /** |
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51 * Called when a thumbnail ID has been found in the Ids table. |
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52 * @param aThumbId Thumbnail ID for the media item. |
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53 */ |
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54 virtual void HandleThumbnailIdFromMediaIdL( |
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55 const TGlxtnThumbnailId& aThumbId ) = 0; |
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56 /** |
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57 * Called when a thumbnail ID has been found in the Items table. |
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58 * @param aThumbId Thumbnail ID for the media item. |
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59 */ |
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60 virtual void HandleThumbnailIdFromFilenameL( |
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61 const TGlxtnThumbnailId& aThumbId ) = 0; |
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62 /** |
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63 * Called when a thumbnail ID has been saved in the Ids table. |
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64 */ |
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65 virtual void HandleThumbnailIdStoredL() = 0; |
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66 /** |
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67 * Called when a thumbnail has been found in the Thumbnails table. |
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68 * @param aFormat Thumbnail data format. |
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69 * @param aData Thumbnail binary data (ownership passed). |
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70 */ |
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71 virtual void HandleThumbnail(TGlxImageDataFormat aFormat, HBufC8* aData) = 0; |
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72 /** |
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73 * Called when a thumbnail has been saved in the Thumbnails table. |
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74 */ |
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75 virtual void HandleThumbnailStored() = 0; |
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76 /** |
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77 * Called when a record has been deleted from a Ids table. |
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78 */ |
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79 virtual void HandleMediaIdDeletedL() = 0; |
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80 /** |
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81 * Called when records have been deleted from a Thumbnails table. |
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82 */ |
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83 virtual void HandleThumbnailsDeletedL() = 0; |
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84 /** |
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85 * Called when a record has been deleted from a Items table. |
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86 */ |
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87 virtual void HandleItemDeletedL() = 0; |
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88 /** |
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89 * Called when availability has been chaecked. |
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90 * @param aResult The result of the check. |
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91 */ |
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92 virtual void HandleAvailabilityChecked(TInt aResult) = 0; |
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93 /** |
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94 * Called after the database has been cleaned up. |
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95 */ |
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96 virtual void HandleDatabaseCleanedL() = 0; |
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97 }; |
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98 |
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99 #endif // M_GLXTNVOLUMEDATABASEOBSERVER_H |