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1 /* |
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2 * Copyright (c) 2006-2007 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 "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: A find operation that uses |
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15 * CContactDataBase::FindInTextDefAsyncL |
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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 #include "CFindInTextDefOperation.h" |
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21 |
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22 // VPbkCntModel internal |
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23 #include "CContactStore.h" |
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24 #include "CFieldFactory.h" |
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25 #include "CContactLink.h" |
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26 |
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27 // Virtual Phonebook |
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28 #include <MVPbkFieldType.h> |
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29 #include <MVPbkContactFindFromStoresObserver.h> |
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30 #include <CVPbkContactLinkArray.h> |
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31 |
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32 // Other system includes |
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33 #include <cntfield.h> |
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34 |
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35 namespace VPbkCntModel { |
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36 |
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37 // Set a limit to the contact id conversion. If for some reason |
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38 // the result is huge. |
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39 const TInt KMaxConversionInOneStep = 100; |
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40 const TInt KContinueIdle = 1; |
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41 const TInt KDontContinueIdle = 0; |
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42 const TInt KGranularity( 2 ); |
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43 |
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44 // ======== MEMBER FUNCTIONS ======== |
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45 |
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46 // --------------------------------------------------------------------------- |
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47 // CFindInTextDefOperation::CFindInTextDefOperation |
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48 // --------------------------------------------------------------------------- |
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49 // |
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50 CFindInTextDefOperation::CFindInTextDefOperation( CContactStore& aContactStore, |
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51 MVPbkContactFindFromStoresObserver& aObserver, |
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52 const TCallBack& aWordParserCallBack ) |
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53 : iStore( aContactStore ), |
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54 iObserver( aObserver ), |
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55 iWordParserCallBack( aWordParserCallBack ) |
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56 { |
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57 |
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58 } |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // CFindInTextDefOperation::ConstructL |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 void CFindInTextDefOperation::ConstructL( const MDesC16Array& aSearchStrings, |
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65 const MVPbkFieldTypeList& aFieldTypes ) |
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66 { |
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67 // Copy search strings |
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68 const TInt stringCount = aSearchStrings.MdcaCount(); |
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69 TInt granularity = stringCount; |
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70 if ( stringCount == 0 ) |
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71 { |
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72 // default granularity |
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73 granularity = KGranularity; |
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74 } |
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75 |
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76 iSearchStrings = new( ELeave ) CDesCArrayFlat( granularity ); |
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77 for ( TInt i = 0; i < stringCount; ++i ) |
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78 { |
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79 iSearchStrings->AppendL( aSearchStrings.MdcaPoint( i ) ); |
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80 } |
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81 |
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82 // Convert fieldtypes to contact model text definitions |
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83 iTextDefs = CContactTextDef::NewL(); |
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84 const TInt typeCount = aFieldTypes.FieldTypeCount(); |
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85 for ( TInt j = 0; j < typeCount; ++j ) |
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86 { |
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87 const MVPbkFieldType& fieldType = aFieldTypes.FieldTypeAt( j ); |
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88 const CContactItemField* field = |
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89 iStore.FieldFactory().FindField( fieldType ); |
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90 if ( field ) |
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91 { |
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92 iTextDefs->AppendL( |
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93 TContactTextDefItem( field->ContentType().FieldType(0) ) ); |
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94 } |
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95 } |
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96 |
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97 iIdle = CIdle::NewL( CActive::EPriorityStandard ); |
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98 iResults = CVPbkContactLinkArray::NewL(); |
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99 } |
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100 |
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101 // --------------------------------------------------------------------------- |
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102 // CFindInTextDefOperation::NewL |
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103 // --------------------------------------------------------------------------- |
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104 // |
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105 CFindInTextDefOperation* CFindInTextDefOperation::NewL( |
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106 CContactStore& aContactStore, |
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107 const MDesC16Array& aSearchStrings, |
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108 const MVPbkFieldTypeList& aFieldTypes, |
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109 MVPbkContactFindFromStoresObserver& aObserver, |
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110 const TCallBack& aWordParserCallBack ) |
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111 { |
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112 CFindInTextDefOperation* self = new( ELeave ) CFindInTextDefOperation( |
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113 aContactStore, aObserver, aWordParserCallBack ); |
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114 CleanupStack::PushL( self ); |
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115 self->ConstructL( aSearchStrings, aFieldTypes ); |
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116 CleanupStack::Pop( self ); |
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117 return self; |
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118 } |
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119 |
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120 // --------------------------------------------------------------------------- |
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121 // CFindInTextDefOperation::~CFindInTextDefOperation |
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122 // --------------------------------------------------------------------------- |
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123 // |
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124 CFindInTextDefOperation::~CFindInTextDefOperation() |
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125 { |
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126 Cancel(); |
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127 delete iAsyncFinder; |
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128 delete iIdle; |
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129 delete iResults; |
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130 delete iContactIds; |
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131 delete iSearchStrings; |
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132 delete iTextDefs; |
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133 } |
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134 |
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135 // --------------------------------------------------------------------------- |
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136 // From class MVPbkContactOperation. |
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137 // CFindInTextDefOperation::StartL |
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138 // --------------------------------------------------------------------------- |
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139 // |
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140 void CFindInTextDefOperation::StartL() |
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141 { |
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142 if ( iTextDefs->Count() == 0 || iSearchStrings->Count() == 0 ) |
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143 { |
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144 iIdle->Start( TCallBack( ConvertResults, this ) ); |
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145 } |
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146 else |
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147 { |
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148 iAsyncFinder = iStore.NativeDatabase().FindInTextDefAsyncL( |
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149 *iSearchStrings, iTextDefs, this, iWordParserCallBack ); |
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150 } |
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151 } |
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152 |
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153 // --------------------------------------------------------------------------- |
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154 // From class MVPbkContactOperation. |
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155 // CFindInTextDefOperation::Cancel |
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156 // --------------------------------------------------------------------------- |
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157 // |
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158 void CFindInTextDefOperation::Cancel() |
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159 { |
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160 if ( iAsyncFinder ) |
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161 { |
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162 iAsyncFinder->Cancel(); |
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163 delete iAsyncFinder; |
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164 iAsyncFinder = NULL; |
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165 } |
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166 |
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167 if ( iIdle ) |
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168 { |
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169 iIdle->Cancel(); |
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170 } |
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171 } |
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172 |
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173 // --------------------------------------------------------------------------- |
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174 // From class MIdleFindObserver. |
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175 // CFindInTextDefOperation::IdleFindCallback |
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176 // --------------------------------------------------------------------------- |
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177 // |
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178 void CFindInTextDefOperation::IdleFindCallback() |
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179 { |
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180 if ( iAsyncFinder->IsComplete() ) |
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181 { |
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182 iContactIds = iAsyncFinder->TakeContactIds(); |
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183 iIdle->Start( TCallBack( ConvertResults, this ) ); |
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184 } |
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185 } |
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186 |
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187 // --------------------------------------------------------------------------- |
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188 // CFindInTextDefOperation::ConvertResults |
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189 // --------------------------------------------------------------------------- |
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190 // |
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191 TInt CFindInTextDefOperation::ConvertResults( TAny* aThis ) |
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192 { |
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193 CFindInTextDefOperation* self = |
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194 static_cast<CFindInTextDefOperation*>( aThis ); |
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195 TInt continueIdle = KDontContinueIdle; |
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196 TRAPD( res, continueIdle = self->ConvertResultsL() ); |
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197 if ( res != KErrNone ) |
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198 { |
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199 self->HandleError( res ); |
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200 } |
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201 return continueIdle; |
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202 } |
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203 |
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204 // --------------------------------------------------------------------------- |
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205 // CFindInTextDefOperation::ConvertResultsL |
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206 // --------------------------------------------------------------------------- |
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207 // |
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208 TInt CFindInTextDefOperation::ConvertResultsL() |
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209 { |
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210 TInt convertedIds = 0; |
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211 const TInt firstContact = 0; |
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212 // Convert only reasonable amount of ids in one cycle |
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213 if ( iContactIds ) |
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214 { |
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215 while ( iContactIds->Count() > 0 && |
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216 convertedIds < KMaxConversionInOneStep ) |
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217 { |
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218 CContactLink* link = CContactLink::NewLC( iStore, |
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219 (*iContactIds)[firstContact] ); |
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220 iContactIds->Remove( firstContact ); |
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221 iResults->AppendL( link ); |
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222 CleanupStack::Pop(); // link |
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223 ++convertedIds; |
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224 } |
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225 } |
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226 |
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227 // iContactIds not necessary exists if find wasn't done in StartL |
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228 if ( !iContactIds || iContactIds->Count() == 0 ) |
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229 { |
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230 // Results are ready. |
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231 MVPbkContactLinkArray* results = iResults; |
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232 iResults = NULL; |
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233 iObserver.FindFromStoreSucceededL( iStore, results ); |
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234 iObserver.FindFromStoresOperationComplete(); |
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235 return KDontContinueIdle; |
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236 } |
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237 return KContinueIdle; |
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238 } |
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239 |
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240 // --------------------------------------------------------------------------- |
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241 // CFindInTextDefOperation::HandleError |
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242 // --------------------------------------------------------------------------- |
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243 // |
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244 void CFindInTextDefOperation::HandleError( TInt aError ) |
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245 { |
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246 if ( aError != KErrNone ) |
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247 { |
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248 iObserver.FindFromStoreFailed( iStore, aError ); |
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249 iObserver.FindFromStoresOperationComplete(); |
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250 } |
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251 } |
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252 } // namespace VPbkCntModel |