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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: |
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15 * |
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16 */ |
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17 |
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18 // INCLUDE FILES |
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19 |
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20 #include <f32file.h> |
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21 #include <s32file.h> |
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22 #include <sysutil.h> |
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23 #include "menusrvmmchistory.h" |
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24 |
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25 // CONSTANTS |
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26 |
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27 LOCAL_D const TInt KMenuMmcHistoryLength = 2; |
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28 |
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29 // ==================== MEMBER FUNCTIONS ==================== |
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30 |
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31 // --------------------------------------------------------- |
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32 // CMenuSrvMmcHistory::LoadL |
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33 // --------------------------------------------------------- |
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34 // |
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35 void CMenuSrvMmcHistory::LoadL( RFs& aFs, const TDesC& aFname ) |
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36 { |
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37 iMmcList.Reset(); |
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38 TUint att; |
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39 if ( KErrNotFound != aFs.Att( aFname, att ) ) |
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40 { |
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41 RFileReadStream stream; |
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42 CleanupClosePushL( stream ); |
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43 User::LeaveIfError( stream.Open |
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44 ( aFs, aFname, EFileStream | EFileShareReadersOnly) ); |
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45 TInt len = Min( KMenuMmcHistoryLength, stream.ReadInt32L() ); |
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46 while( len-- ) |
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47 { |
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48 iMmcList.AppendL( stream.ReadUint32L() ); |
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49 } |
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50 CleanupStack::PopAndDestroy( &stream ); |
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51 } |
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52 } |
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53 |
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54 // --------------------------------------------------------- |
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55 // CMenuSrvMmcHistory::SaveL |
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56 // Method do not work if there is no free space on C drive. |
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57 // --------------------------------------------------------- |
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58 // |
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59 void CMenuSrvMmcHistory::SaveL( RFs& aFs, const TDesC& aFname ) |
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60 { |
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61 if ( SysUtil::DiskSpaceBelowCriticalLevelL( &aFs, 0, EDriveC) ) |
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62 { |
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63 return; |
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64 } |
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65 |
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66 RFileWriteStream stream; |
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67 CleanupClosePushL( stream ); |
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68 User::LeaveIfError( stream.Replace |
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69 ( aFs, aFname, EFileStream | EFileShareExclusive ) ); |
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70 stream.WriteInt32L( iMmcList.Count() ); |
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71 for ( TInt i = 0; i < iMmcList.Count(); i++ ) |
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72 { |
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73 stream.WriteUint32L( iMmcList[i] ); |
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74 } |
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75 CleanupStack::PopAndDestroy( &stream ); |
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76 } |
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77 |
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78 // --------------------------------------------------------- |
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79 // CMenuSrvMmcHistory::InsertL |
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80 // --------------------------------------------------------- |
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81 // |
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82 void CMenuSrvMmcHistory::InsertL( TUint aMmc ) |
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83 { |
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84 TInt i = iMmcList.Find( aMmc ); |
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85 switch ( i ) |
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86 { |
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87 case 0: |
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88 { |
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89 // aMmc is already first, do nothing. |
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90 break; |
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91 } |
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92 |
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93 case KErrNotFound: |
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94 { |
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95 // aMmc is not in the list. Insert as first. |
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96 if ( iMmcList.Count() == KMenuMmcHistoryLength ) |
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97 { |
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98 // List already full - remove last item to make space. |
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99 iMmcList.Remove( KMenuMmcHistoryLength - 1 ); |
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100 } |
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101 iMmcList.InsertL( aMmc, 0 ); |
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102 break; |
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103 } |
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104 |
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105 default: |
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106 { |
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107 // aMmc is in the list, but not first. Move to first place. |
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108 iMmcList.Remove( i ); |
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109 iMmcList.InsertL( aMmc, 0 ); |
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110 break; |
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111 } |
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112 } |
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113 } |
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114 |
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115 // --------------------------------------------------------- |
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116 // CMenuSrvMmcHistory::Find |
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117 // --------------------------------------------------------- |
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118 // |
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119 TInt CMenuSrvMmcHistory::Find( TUint aMmc ) |
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120 { |
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121 return iMmcList.Find( aMmc ); |
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122 } |
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123 |
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124 // End of File |