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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: isolated collection helper. |
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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 #include <mpxcollectionhelperfactory.h> |
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20 #include <mpxcollectionuihelper.h> |
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21 #include <mpxcollectionopenutility.h> |
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22 |
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23 #include "mpmpxisolatedcollectionhelper.h" |
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24 #include "mpxlog.h" |
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25 |
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26 |
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27 |
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28 const TInt KIncrementalDelayNone = 0; |
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29 const TInt KIncrementalDelayHalfSecond = 1000000; |
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30 const TInt KIncrementalFetchBlockSize = 20; |
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31 const TInt KIncrementalNullOffset = 0; |
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32 |
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33 |
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34 /*! |
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35 \class CMpMpxIsolatedCollectionHelper |
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36 \brief Helper class to open an isolated collection. |
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37 |
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38 This is a helper class to open an insolated collection. |
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39 */ |
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40 |
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41 /*! |
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42 \internal |
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43 Two-phased constructor. |
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44 */ |
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45 CMpMpxIsolatedCollectionHelper* CMpMpxIsolatedCollectionHelper::NewL( |
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46 MMpMpxIsolatedCollectionHelperObserver* aObserver ) |
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47 { |
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48 CMpMpxIsolatedCollectionHelper* self = NewLC( aObserver ); |
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49 CleanupStack::Pop( self ); |
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50 return self; |
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51 } |
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52 |
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53 /*! |
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54 \internal |
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55 Two-phased constructor. |
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56 */ |
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57 CMpMpxIsolatedCollectionHelper* CMpMpxIsolatedCollectionHelper::NewLC( |
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58 MMpMpxIsolatedCollectionHelperObserver* aObserver ) |
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59 { |
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60 CMpMpxIsolatedCollectionHelper* self = |
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61 new ( ELeave ) CMpMpxIsolatedCollectionHelper( aObserver ); |
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62 CleanupStack::PushL( self ); |
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63 self->ConstructL(); |
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64 return self; |
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65 } |
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66 |
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67 /*! |
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68 \internal |
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69 Destructor |
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70 */ |
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71 CMpMpxIsolatedCollectionHelper::~CMpMpxIsolatedCollectionHelper() |
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72 { |
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73 delete iIncrementalOpenUtil; |
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74 } |
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75 |
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76 |
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77 /*! |
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78 \internal |
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79 Opens an isolated collection with the /a path. |
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80 */ |
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81 void CMpMpxIsolatedCollectionHelper::OpenCollectionL( CMPXCollectionPath& aPath ) |
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82 { |
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83 //Using incremental open to open the collection. |
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84 |
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85 // Cancel any reads |
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86 iIncrementalOpenUtil->Stop(); |
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87 |
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88 // Start the read |
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89 iFirstIncrementalOpen = ETrue; |
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90 RArray<TMPXAttribute> attrs; |
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91 CleanupClosePushL( attrs ); |
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92 TArray<TMPXAttribute> ary = attrs.Array(); |
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93 iIncrementalOpenUtil->SetDelay( KIncrementalDelayNone ); |
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94 iIncrementalOpenUtil->StartL( aPath, ary, KIncrementalFetchBlockSize, |
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95 KIncrementalNullOffset, CMPXCollectionOpenUtility::EFetchNormal ); |
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96 iIncrementalOpenUtil->SetDelay( KIncrementalDelayHalfSecond ); |
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97 CleanupStack::PopAndDestroy( &attrs ); |
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98 } |
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99 |
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100 /*! |
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101 \internal |
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102 c++ Contructor |
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103 */ |
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104 CMpMpxIsolatedCollectionHelper::CMpMpxIsolatedCollectionHelper( MMpMpxIsolatedCollectionHelperObserver* aObserver ) |
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105 : iObserver( aObserver ), |
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106 iIncrementalOpenUtil( 0 ), |
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107 iFirstIncrementalOpen( EFalse ) |
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108 { |
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109 } |
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110 |
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111 /*! |
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112 \internal |
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113 Leaving constructor |
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114 */ |
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115 void CMpMpxIsolatedCollectionHelper::ConstructL() |
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116 { |
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117 iIncrementalOpenUtil = CMPXCollectionOpenUtility::NewL( this, KMcModeIsolated ); |
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118 |
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119 } |
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120 |
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121 |
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122 /*! |
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123 \internal |
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124 reimp |
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125 */ |
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126 void CMpMpxIsolatedCollectionHelper::HandleOpenL( |
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127 const CMPXMedia& aEntries, |
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128 TInt /*aIndex*/, |
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129 TBool /*aComplete*/, |
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130 TInt aError ) |
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131 { |
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132 if ( iFirstIncrementalOpen ) |
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133 { |
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134 iObserver->HandleIsolatedOpenL( aEntries, aError ); |
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135 iFirstIncrementalOpen = EFalse; |
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136 } |
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137 } |
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138 |
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139 /*! |
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140 \internal |
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141 reimp |
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142 */ |
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143 void CMpMpxIsolatedCollectionHelper::HandleOpenL( |
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144 const CMPXCollectionPlaylist& /*aPlaylist*/, |
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145 TInt /*aError*/ ) |
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146 { |
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147 } |
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148 |
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149 /*! |
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150 \internal |
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151 reimp |
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152 */ |
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153 void CMpMpxIsolatedCollectionHelper::HandleCollectionMessage( |
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154 CMPXMessage* /*aMsg*/, |
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155 TInt /*aErr*/ ) |
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156 { |
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157 } |
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158 |
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159 /*! |
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160 \internal |
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161 reimp |
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162 */ |
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163 void CMpMpxIsolatedCollectionHelper::HandleCollectionMediaL( |
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164 const CMPXMedia& /*aMedia*/, |
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165 TInt /*aError*/ ) |
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166 { |
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167 } |
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168 |
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169 //EOF |