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1 /* |
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2 * Copyright (c) 2007-2007 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 the License "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: This Class provides the core functionality to Media Management |
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15 * SAPI Interafce |
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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 #include <mclfitemlistmodel.h> |
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22 #include <mclfcontentlistingengine.h> |
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23 #include <contentlistingfactory.h> |
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24 #include <mclfsortingstyle.h> |
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25 |
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26 |
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27 #include "mgservice.h" |
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28 #include "mgpostfilter.h" |
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29 #include "mgoperationobserver.h" |
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30 #include "mgclfoperationobserver.h" |
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31 #include "mgconsts.h" |
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32 |
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33 // Inclusion for thumbnail generation |
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34 |
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35 #include"mgthumbnailgeneration.h" |
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36 #include"mgthumbobserver.h" |
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37 |
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38 //Media types. |
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39 _LIT8( KMgMusic ,"Music" ); |
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40 _LIT8( KMgSound ,"Sound" ); |
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41 _LIT8( KMgImage ,"Image" ); |
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42 _LIT8( KMgVideo ,"Video" ); |
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43 _LIT8( KMgStreamingURL ,"StreamingURL" ); |
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44 |
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45 |
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46 //SortingOrder |
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47 _LIT8( KMgDescending, "Descending" ); |
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48 //_LIT8( KMgAscending, "Ascending" ); |
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49 |
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50 |
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51 |
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52 // ----------------------------------------------------------------------------- |
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53 // CMgService::NewLC |
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54 // Returns the instance of CMgService class. |
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55 // ----------------------------------------------------------------------------- |
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56 EXPORT_C CMgService* CMgService::NewL() |
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57 { |
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58 CMgService* self = new ( ELeave )CMgService(); |
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59 CleanupStack::PushL( self ); |
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60 self->ConstructL(); |
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61 CleanupStack::Pop( self ); |
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62 return self; |
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63 } |
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64 // ----------------------------------------------------------------------------- |
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65 // CMgService::~CMgService |
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66 // Destructor |
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67 // ----------------------------------------------------------------------------- |
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68 |
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69 CMgService::~CMgService() |
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70 { |
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71 |
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72 //release filter class |
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73 if(iFilter) |
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74 { |
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75 delete iFilter; |
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76 } |
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77 |
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78 // release sorting style |
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79 if(iSortingStyle) |
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80 { |
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81 delete iSortingStyle; |
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82 } |
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83 |
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84 // release clf observer class |
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85 if(iClfObserver) |
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86 { |
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87 delete iClfObserver; |
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88 } |
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89 |
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90 //release iEngine; |
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91 if(iEngine) |
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92 { |
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93 delete iEngine; |
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94 } |
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95 |
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96 // releasing iTumbnailGeneration |
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97 if(iTumbnailGeneration) |
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98 { |
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99 delete iTumbnailGeneration; |
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100 } |
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101 |
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102 } |
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103 |
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104 |
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105 |
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106 |
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107 // ----------------------------------------------------------------------------- |
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108 // CMgService::GetFiles |
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109 // This function extracts all media item that match the given arguments |
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110 // ----------------------------------------------------------------------------- |
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111 |
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112 EXPORT_C void CMgService::GetListL(const TMgServiceRequest& aInParameters, |
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113 MMgOperationObserver* aServiceObserver) |
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114 { |
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115 |
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116 //Check if the class is busy or waiting for asynchronous request |
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117 //This has already been verified by SAPI interface class ,still this condition |
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118 //is checked keeping in mind that this class may be called directly by a |
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119 //Series60 application in future |
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120 if( EMgFree == iState ) |
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121 { |
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122 |
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123 |
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124 |
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125 if( NULL != aServiceObserver )//Asynchronous request |
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126 { |
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127 // create the instance of CLF list Model for the current request |
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128 MCLFItemListModel* listModel = iEngine-> |
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129 CreateListModelLC( *iClfObserver ); |
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130 |
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131 |
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132 |
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133 |
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134 SendRequestToClfL( aInParameters.iFileType, |
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135 aInParameters.iFilterField, |
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136 aInParameters.iStartVal, |
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137 aInParameters.iEndVal, |
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138 aInParameters.iSortField, |
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139 aInParameters.iOrder, |
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140 listModel ); |
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141 |
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142 CleanupStack::Pop(); |
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143 |
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144 iTransactionID = aInParameters.iTransactionID; |
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145 iClfObserver->SetMemberVar( aInParameters.iTransactionID, |
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146 aServiceObserver, |
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147 listModel, |
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148 this ); |
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149 |
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150 |
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151 |
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152 } |
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153 else |
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154 { |
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155 //Synchronous request handling is currently not supported |
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156 User::Leave( KErrNotSupported ); |
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157 } |
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158 |
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159 }//SAPI State |
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160 else |
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161 { |
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162 User::Leave( KErrServerBusy ); // busy in previous request |
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163 } |
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164 |
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165 } |
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166 |
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167 |
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168 // ----------------------------------------------------------------------------- |
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169 // CMgService::Cancel |
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170 // Cancel the pending asynchronous request |
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171 // ----------------------------------------------------------------------------- |
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172 EXPORT_C TInt CMgService::CancelL( TUint aTransactionID) |
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173 { |
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174 // call cancel of CLF |
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175 // Right now we are not supporting aTransactionID |
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176 // but in future we have to find the iClfObserver |
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177 // coresponding to this Transaction ID and Call cancel |
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178 // on that observer |
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179 if( EMgBusy == iState ) |
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180 { |
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181 if( aTransactionID == iTransactionID ) |
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182 { |
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183 iClfObserver->CancelL( ); |
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184 Clear(); |
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185 return KErrNone; |
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186 } |
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187 } |
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188 |
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189 // Calling cancel of thumbnail |
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190 |
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191 if(aTransactionID != iTransactionID) |
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192 { |
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193 return CancelThumbnailReq(aTransactionID); |
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194 } |
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195 |
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196 return KErrArgument; |
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197 |
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198 } |
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199 // ----------------------------------------------------------------------------- |
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200 // CMgService::CancelThumbnailReq |
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201 // Cancel the pending asynchronous request for thumbnail generation |
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202 // ----------------------------------------------------------------------------- |
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203 TInt CMgService::CancelThumbnailReq( TUint aTransactionID ) |
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204 { |
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205 return iTumbnailGeneration->Cancel(aTransactionID); |
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206 } |
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207 // ----------------------------------------------------------------------------- |
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208 // CMgService::Clear |
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209 // It will clear the set filter metadata field ,registered callback |
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210 // function and sorting fields |
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211 // ----------------------------------------------------------------------------- |
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212 |
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213 void CMgService::Clear() |
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214 { |
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215 iFilter->Clear(); |
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216 iState = EMgFree; |
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217 iTransactionID = 0; |
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218 } |
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219 |
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220 |
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221 |
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222 |
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223 // ----------------------------------------------------------------------------- |
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224 // CMgService::State |
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225 // It will return the state of service class. |
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226 // return EMgFree if it is free and ready to accept |
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227 // the another request else EMgBusy |
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228 // ----------------------------------------------------------------------------- |
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229 EXPORT_C const TMgState& CMgService::State() const |
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230 { |
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231 return iState; |
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232 } |
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233 |
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234 |
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235 |
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236 |
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237 // ----------------------------------------------------------------------------- |
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238 // CMgService::SetSortingField |
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239 // It will set the metadata field on which the result |
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240 // should be sorted. |
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241 // Leave with KErrArgument if aSortField is not valid. |
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242 // ----------------------------------------------------------------------------- |
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243 |
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244 void CMgService::SetSortingFieldL(const TDesC8& aSortField , |
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245 const TDesC8& aOrder , |
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246 const RArray<TInt>& aMediaTypes, |
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247 MCLFItemListModel* alistModel ) |
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248 { |
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249 |
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250 // Default sorting as per file name |
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251 TCLFDefaultFieldId metaDataId = ECLFFieldIdFileName; |
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252 TCLFItemDataType metaDataType = ECLFItemDataTypeDesC; |
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253 |
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254 //Check If the aSortField is not NULL Descriptor i.e. |
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255 // sorting metadata is specified |
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256 |
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257 if( 0 != aSortField.CompareF( KNullDesC8 ) ) |
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258 { |
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259 |
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260 GetMetaDataIdAndType( aSortField, |
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261 metaDataId, |
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262 metaDataType, |
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263 aMediaTypes ); |
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264 |
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265 if( ECLFFieldIdNull == metaDataId ) // check the return type |
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266 { |
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267 // The given Sort Field is not supported by Media Management SAPI |
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268 User::Leave( KErrArgument ); |
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269 } |
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270 } |
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271 |
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272 iSortingStyle->ResetL(); |
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273 |
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274 |
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275 //Set the field on which sorting has to perform |
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276 iSortingStyle->AddFieldL( metaDataId ); |
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277 |
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278 // Set the sorting field data type |
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279 iSortingStyle->SetSortingDataType( metaDataType ); |
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280 |
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281 if( 0 == aOrder.CompareF( KMgDescending ) ) |
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282 { |
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283 iSortingStyle->SetOrdering( ECLFOrderingDescending ); |
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284 } |
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285 else if( 0 == aOrder.CompareF( KMgAscending) ) |
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286 { |
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287 iSortingStyle->SetOrdering( ECLFOrderingAscending ); |
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288 } |
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289 else |
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290 { |
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291 User::Leave( KErrArgument ); |
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292 } |
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293 |
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294 //Items with undefined fields are placed after items with defined fields |
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295 iSortingStyle->SetUndefinedItemPosition( ECLFSortingStyleUndefinedEnd ); |
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296 |
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297 // set sorting style in CLF. |
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298 alistModel->SetSortingStyle( iSortingStyle ); |
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299 |
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300 |
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301 } |
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302 |
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303 |
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304 // ----------------------------------------------------------------------------- |
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305 // CPostFilter::SetFilterMetaData |
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306 // Method to set the filter metadata |
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307 // ----------------------------------------------------------------------------- |
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308 void CMgService::SetFilterMetaDataL( const TDesC8& aFilterField, |
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309 const TDesC& aStartVal, |
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310 const TDesC& aEndVal, |
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311 const RArray<TInt>& aMediaTypes, |
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312 MCLFItemListModel* alistModel ) |
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313 { |
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314 TCLFDefaultFieldId metaDataId; |
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315 TCLFItemDataType metaDataType; |
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316 |
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317 |
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318 |
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319 //Check If the Filter Meta Data is NULL Descriptor, if so |
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320 // no filtration will be performed |
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321 if( 0 == aFilterField.CompareF( KNullDesC8 ) ) |
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322 { |
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323 metaDataId = ECLFFieldIdNull; |
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324 metaDataType = ECLFItemDataTypeDesC; // Blank Descriptor |
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325 iFilter->SetFilterMetaData( metaDataId, metaDataType ); |
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326 } |
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327 else |
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328 { |
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329 GetMetaDataIdAndType( aFilterField, |
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330 metaDataId, |
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331 metaDataType, |
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332 aMediaTypes); |
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333 |
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334 if( ECLFFieldIdNull == metaDataId ) |
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335 { |
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336 // The given metaData is not supported by Media Management SAPI |
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337 User::Leave( KErrArgument ); |
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338 } |
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339 |
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340 |
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341 iFilter->SetFilterMetaData( metaDataId, metaDataType ); |
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342 |
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343 // set filter value of CLF |
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344 iFilter->SetFilterValueL( aStartVal,aEndVal ); |
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345 |
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346 // Set Post Filter in CLF |
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347 alistModel->SetPostFilter( iFilter ); |
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348 |
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349 } |
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350 |
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351 } |
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352 |
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353 |
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354 // ----------------------------------------------------------------------------- |
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355 // CMgService::ConstuctL |
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356 // It will intialize the underlying CLF(Content Listing Framework) |
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357 // framework classes and CPostFilter class. |
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358 // ----------------------------------------------------------------------------- |
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359 void CMgService::ConstructL() |
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360 { |
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361 // create the instance of CLF engine and store it in member data. |
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362 iEngine = ContentListingFactory::NewContentListingEngineLC(); |
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363 CleanupStack::Pop(); |
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364 |
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365 |
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366 // create the instance of CPostFilter and store it in member data |
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367 iFilter = CPostFilter::NewL(); |
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368 |
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369 // Get the sorting style from CLF |
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370 iSortingStyle = ContentListingFactory::NewSortingStyleLC(); |
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371 CleanupStack::Pop(); |
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372 |
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373 //create the instance of clf observer |
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374 iClfObserver = CClfOperationObserver::NewL(); |
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375 |
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376 // creates instance for async requestmanager for thumbnail |
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377 iTumbnailGeneration = CThumbnailGeneration::NewL(); |
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378 |
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379 } |
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380 |
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381 |
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382 |
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383 |
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384 // ----------------------------------------------------------------------------- |
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385 // CMgService::CMgService |
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386 // Constructor |
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387 // ----------------------------------------------------------------------------- |
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388 CMgService::CMgService() |
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389 : iState( EMgFree ), |
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390 iEngine( NULL ), |
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391 iFilter( NULL ), |
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392 iSortingStyle( NULL ), |
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393 iClfObserver( NULL ), |
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394 iTransactionID( 0 ), |
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395 iTumbnailGeneration(NULL) |
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396 { |
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397 |
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398 } |
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399 |
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400 |
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401 |
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402 // ----------------------------------------------------------------------------- |
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403 // CMgService::SetMediaTypeL |
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404 // It will convert the aFiletype string into |
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405 // equivalent Mediatype ID and Fill the Media Type Array |
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406 // if it is not valid then return KErrNotSupported |
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407 // ----------------------------------------------------------------------------- |
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408 void CMgService::SetMediaTypeL (const TDesC8& aFileType, |
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409 RArray<TInt>& aMediaType) |
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410 { |
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411 |
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412 if( 0 == aFileType.CompareF( KMgMusic ) ) |
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413 { |
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414 aMediaType.AppendL( ECLFMediaTypeMusic ); |
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415 } |
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416 else if( 0 == aFileType.CompareF( KMgSound ) ) |
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417 { |
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418 aMediaType.AppendL( ECLFMediaTypeSound ); |
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419 } |
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420 |
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421 else if( 0 == aFileType.CompareF( KMgImage ) ) |
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422 { |
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423 aMediaType.AppendL( ECLFMediaTypeImage ); |
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424 } |
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425 |
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426 else if( 0 == aFileType.CompareF( KMgVideo ) ) |
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427 { |
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428 aMediaType.AppendL( ECLFMediaTypeVideo ); |
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429 } |
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430 |
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431 else if( 0 == aFileType.CompareF( KMgStreamingURL ) ) |
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432 { |
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433 aMediaType.AppendL( ECLFMediaTypeStreamingURL ); |
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434 } |
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435 else |
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436 { |
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437 User::Leave ( KErrArgument ); // Media Type Not suuported |
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438 } |
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439 |
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440 } |
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441 |
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442 |
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443 |
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444 |
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445 |
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446 // ----------------------------------------------------------------------------- |
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447 // CMgService::SendRequestToCLF |
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448 // This Function will pass the request to CLF frame work for required media type. |
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449 // return KErrArgument if the FilterMetaData is not Supported |
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450 // return KErrArgument if the Start Value is not Supported |
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451 // return KErrArgument if the End Value is mot supported |
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452 // return KErrNone if sucessful |
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453 // ----------------------------------------------------------------------------- |
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454 |
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455 void CMgService::SendRequestToClfL( const TDesC8& aFileType, |
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456 const TDesC8& aFilterField, |
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457 const TDesC& aStartVal, |
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458 const TDesC& aEndVal, |
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459 const TDesC8& aSortField, |
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460 const TDesC8& aOrder, |
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461 MCLFItemListModel* alistModel ) |
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462 { |
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463 |
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464 |
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465 |
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466 RArray<TInt> mediaTypes; |
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467 CleanupClosePushL( mediaTypes ); |
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468 |
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469 //check if it is a valid file type or not |
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470 SetMediaTypeL( aFileType,mediaTypes ); |
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471 |
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472 |
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473 //set wanted media type in CLF |
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474 alistModel->SetWantedMediaTypesL( mediaTypes.Array() ); |
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475 |
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476 |
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477 // Set Filter Meta Data and Value |
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478 SetFilterMetaDataL( aFilterField,aStartVal,aEndVal,mediaTypes,alistModel); |
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479 |
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480 |
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481 |
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482 // call set sorting field of CLF |
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483 SetSortingFieldL( aSortField,aOrder,mediaTypes,alistModel ); |
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484 |
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485 // set the state = Busy |
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486 // till this request is complete |
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487 //which indicates no further request will be taken |
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488 iState = EMgBusy; |
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489 |
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490 //asynchronous call to CLF ECLFRefreshAll |
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491 alistModel->RefreshL(); |
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492 |
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493 |
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494 CleanupStack::PopAndDestroy( &mediaTypes ); |
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495 |
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496 |
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497 } |
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498 |
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499 |
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500 |
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501 // ----------------------------------------------------------------------------- |
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502 // CMgService::GetMetaDataIdAndType |
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503 // It will convert the aFilterData string into equivalent Metadata ID and Type |
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504 // which is recognized by underlying framework.(i.e CLF) |
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505 // ----------------------------------------------------------------------------- |
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506 void CMgService::GetMetaDataIdAndType(const TDesC8& aMetaData, |
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507 TCLFDefaultFieldId& aMetaDataId, |
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508 TCLFItemDataType& aMetaDataType, |
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509 const RArray<TInt> &aMediaTypes) |
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510 { |
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511 //File name field |
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512 if( 0 == aMetaData.CompareF( KMgFileName )) |
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513 { |
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514 aMetaDataType = ECLFItemDataTypeDesC; |
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515 aMetaDataId = ECLFFieldIdFileName; |
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516 } |
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517 |
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518 |
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519 |
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520 // File Extension |
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521 else if( 0 == aMetaData.CompareF( KMgFileExtension )) |
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522 { |
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523 aMetaDataType = ECLFItemDataTypeDesC; |
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524 aMetaDataId = ECLFFieldIdFileExtension; |
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525 } |
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526 |
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527 |
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528 // File path field |
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529 else if( 0 == aMetaData.CompareF( KMgPath )) |
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530 { |
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531 aMetaDataType = ECLFItemDataTypeDesC; |
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532 aMetaDataId = ECLFFieldIdPath; |
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533 } |
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534 |
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535 |
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536 // File drive field |
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537 else if( 0 == aMetaData.CompareF( KMgDrive )) |
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538 { |
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539 aMetaDataType = ECLFItemDataTypeDesC; |
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540 aMetaDataId = ECLFFieldIdDrive; |
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541 } |
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542 |
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543 |
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544 // File size field |
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545 else if( 0 == aMetaData.CompareF( KMgFileSize )) |
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546 { |
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547 aMetaDataType = ECLFItemDataTypeTInt32; |
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548 aMetaDataId = ECLFFieldIdFileSize; |
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549 } |
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550 |
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551 |
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552 |
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553 // File date field |
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554 else if( 0 == aMetaData.CompareF( KMgFileDate )) |
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555 { |
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556 aMetaDataType = ECLFItemDataTypeTTime; |
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557 aMetaDataId = ECLFFieldIdFileDate; |
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558 } |
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559 |
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560 |
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561 |
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562 // Mime type field |
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563 else if( 0 == aMetaData.CompareF( KMgMimeType )) |
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564 { |
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565 aMetaDataType = ECLFItemDataTypeDesC; |
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566 aMetaDataId = ECLFFieldIdMimeType; |
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567 } |
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568 |
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569 |
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570 // Full name and path of the file |
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571 else if( 0 == aMetaData.CompareF( KMgFileNameAndPath )) |
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572 { |
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573 aMetaDataType = ECLFItemDataTypeDesC; |
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574 aMetaDataId = ECLFFieldIdFileNameAndPath; |
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575 } |
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576 |
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577 // Music file song name: and also check If the File type is Music File |
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578 else if( (0 == aMetaData.CompareF( KMgSongName )) &&( KErrNotFound != aMediaTypes.Find( ECLFMediaTypeMusic )) ) |
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579 { |
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580 aMetaDataType = ECLFItemDataTypeDesC; |
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581 aMetaDataId = ECLFFieldIdSongName; |
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582 |
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583 } |
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584 // Music file artist |
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585 else if( (0 == aMetaData.CompareF( KMgArtist )) &&( KErrNotFound != aMediaTypes.Find( ECLFMediaTypeMusic )) ) |
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586 |
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587 { |
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588 aMetaDataType = ECLFItemDataTypeDesC; |
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589 aMetaDataId = ECLFFieldIdArtist; |
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590 } |
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591 |
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592 |
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593 // Music file album |
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594 else if((0 == aMetaData.CompareF( KMgAlbum )) && |
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595 ( KErrNotFound != aMediaTypes.Find( ECLFMediaTypeMusic ) ) ) |
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596 { |
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597 aMetaDataType = ECLFItemDataTypeDesC; |
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598 aMetaDataId = ECLFFieldIdAlbum; |
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599 } |
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600 |
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601 |
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602 |
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603 // Music file genre |
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604 else if((0==aMetaData.CompareF( KMgGenre))&& |
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605 ( KErrNotFound != aMediaTypes.Find(ECLFMediaTypeMusic) ) ) |
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606 { |
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607 aMetaDataType = ECLFItemDataTypeDesC; |
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608 aMetaDataId = ECLFFieldIdGenre; |
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609 } |
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610 |
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611 |
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612 |
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613 // Music file track number |
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614 else if((0 == aMetaData.CompareF( KMgTrackNumber ))&& |
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615 ( KErrNotFound != aMediaTypes.Find( ECLFMediaTypeMusic ) ) ) |
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616 { |
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617 aMetaDataType = ECLFItemDataTypeTInt32; |
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618 aMetaDataId = ECLFFieldIdTrackNumber; |
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619 } |
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620 |
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621 |
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622 |
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623 // Music file composer |
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624 else if( (0 == aMetaData.CompareF( KMgComposer )) && |
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625 ( KErrNotFound != aMediaTypes.Find( ECLFMediaTypeMusic ) ) ) |
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626 { |
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627 aMetaDataType = ECLFItemDataTypeDesC; |
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628 aMetaDataId = ECLFFieldIdComposer; |
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629 } |
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630 |
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631 // Ram link first URL |
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632 else if( (0 == aMetaData.CompareF( KMgLinkFirstURL )) && |
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633 ( KErrNotFound != aMediaTypes.Find( ECLFMediaTypeStreamingURL ) ) ) |
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634 { |
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635 aMetaDataType = ECLFItemDataTypeDesC; |
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636 aMetaDataId = ECLFFieldIdRamLinkFirstURL; |
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637 } |
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638 |
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639 else |
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640 { |
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641 aMetaDataType = ECLFItemDataTypeTInt32; |
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642 aMetaDataId = ECLFFieldIdNull; |
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643 } |
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644 |
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645 |
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646 } |
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647 // ----------------------------------------------------------------------------- |
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648 // CMgService::GetThumbnailL |
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649 // It generates the thumbnail for media type (image and video ) |
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650 // ----------------------------------------------------------------------------- |
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651 |
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652 EXPORT_C void CMgService::GetThumbnailL(MThumbnailObserver* aThumbnailObserver, TDesC & aUrl, TInt32 aTransactionID, |
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653 TInt aHeight, TInt aWidth) |
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654 { |
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655 // Calling getThumbnail Api |
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656 iTumbnailGeneration->GetThumbnailL(aThumbnailObserver,aTransactionID,aUrl,aHeight,aWidth ); |
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657 |
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658 } |