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1 /* |
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2 * Copyright (c) 2006 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: Definitions for incremental open command type |
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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 #ifndef MPXINCREMENTALOPENDEFS_H |
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21 #define MPXINCREMENTALOPENDEFS_H |
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22 |
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23 #include <mpxattribute.h> |
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24 |
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25 /** |
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26 * Content ID for opening incrementally |
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27 */ |
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28 const TInt KMPXCommandIdIncrementalOpenL = 0x1028297B; |
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29 |
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30 /** |
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31 * Enumeration for ascending or decending |
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32 */ |
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33 enum TReadDirection |
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34 { |
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35 EReadUnknown = -1, |
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36 EReadDescending = 0, |
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37 EReadAscending = 1 |
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38 }; |
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39 |
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40 /** |
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41 * Attributes supported for KMPXCommandIdIncrementalOpenL |
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42 */ |
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43 |
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44 /** |
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45 * The collection path to open (CMPXCollectionPath) |
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46 */ |
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47 const TMPXAttributeData KMPXCollectionCommandIdIncOpenLPath = { |
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48 KMPXCommandIdIncrementalOpenL, 0x01}; |
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49 |
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50 /** |
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51 * Offset to start reading from (TInt) |
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52 */ |
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53 const TMPXAttributeData KMPXCollectionCommandIdIncOpenLOffset = { |
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54 KMPXCommandIdIncrementalOpenL, 0x02}; |
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55 |
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56 /** |
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57 * Number of items to read (TInt) |
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58 */ |
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59 const TMPXAttributeData KMPXCollectionCommandIdIncOpenLNumItems = { |
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60 KMPXCommandIdIncrementalOpenL, 0x04}; |
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61 |
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62 /** |
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63 * Read ascending or decending (EReadDescending for dsc, |
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64 * EReadAscending for asc) |
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65 * |
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66 * Can use ascending read if a key item can be provided for faster access |
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67 */ |
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68 const TMPXAttributeData KMPXCollectionCommandIdIncOpenLAscDsc = { |
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69 KMPXCommandIdIncrementalOpenL, 0x08}; |
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70 |
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71 /** |
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72 * Value of some key (TDesC) to accelerate open db |
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73 * |
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74 * For example, KMPXMediaGeneralTitle can be used |
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75 * as a reference for plugins to quickly jump to the |
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76 * last retrieved item |
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77 */ |
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78 const TMPXAttributeData KMPXCollectionCommandIdIncOpenLKeyItem = { |
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79 KMPXCommandIdIncrementalOpenL, 0x10}; |
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80 |
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81 #endif // MPXINCREMENTALOPENDEFS_H |