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1 /* |
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2 * Copyright (c) 2010 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 #include <e32svr.h> |
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20 #include "common.h" |
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21 |
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22 #include "SearchClient.pan" |
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23 #include "CCPixSearcher.h" |
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24 #include "MCPixSearcherObserver.h" |
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25 #include "SearchServerCommon.h" |
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26 |
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27 // CCPixSearcher::NewL() |
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28 // Two-phased constructor. |
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29 EXPORT_C CCPixSearcher* CCPixSearcher::NewL(RSearchServerSession& aSearchServerSession, const TDesC& aDefaultSearchField) |
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30 { |
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31 CCPixSearcher* self = NewLC(aSearchServerSession, aDefaultSearchField); |
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32 CleanupStack::Pop( self ); |
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33 return self; |
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34 } |
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35 |
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36 // CCPixSearcher::NewLC() |
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37 // Two-phased constructor. |
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38 EXPORT_C CCPixSearcher* CCPixSearcher::NewLC(RSearchServerSession& aSearchServerSession, const TDesC& aDefaultSearchField) |
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39 { |
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40 CCPixSearcher* self = new ( ELeave ) CCPixSearcher(aSearchServerSession); |
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41 CleanupStack::PushL( self ); |
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42 self->ConstructL(aDefaultSearchField); |
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43 return self; |
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44 } |
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45 |
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46 // CCPixSearcher::ConstructL() |
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47 // Symbian 2nd phase constructor can leave. |
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48 void CCPixSearcher::ConstructL(const TDesC& aDefaultSearchField) |
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49 { |
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50 User::LeaveIfError( iSubSession.Open(iSearchServerSession) ); |
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51 iDefaultSearchField = aDefaultSearchField.AllocL(); |
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52 } |
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53 |
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54 // CCPixSearcher::CCPixSearcher() |
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55 // C++ default constructor can NOT contain any code, that might leave. |
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56 CCPixSearcher::CCPixSearcher(RSearchServerSession& aSearchServerSession) |
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57 : CActive( EPriorityStandard ), |
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58 iState( EStateNone ), |
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59 iIsDatabaseOpen( EFalse ), |
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60 iSearchServerSession( aSearchServerSession ), |
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61 iBaseAppClass( 0 ) |
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62 { |
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63 CActiveScheduler::Add( this ); |
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64 } |
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65 |
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66 // CCPixSearcher::~CCPixSearcher() |
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67 // Destructor. |
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68 EXPORT_C CCPixSearcher::~CCPixSearcher() |
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69 { |
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70 Cancel(); // Causes call to DoCancel() |
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71 iSubSession.Close(); |
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72 |
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73 delete iDefaultSearchField; |
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74 delete iQueryString; |
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75 delete iBaseAppClass; |
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76 delete iAnalyzer; |
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77 } |
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78 |
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79 EXPORT_C TBool CCPixSearcher::IsDatabaseOpen() const |
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80 { |
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81 return iIsDatabaseOpen; |
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82 } |
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83 |
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84 EXPORT_C const TDesC& CCPixSearcher::GetBaseAppClass() const |
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85 { |
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86 if (iBaseAppClass) |
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87 return *iBaseAppClass; |
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88 else |
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89 return KNullDesC; |
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90 } |
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91 |
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92 // |
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93 // |
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94 EXPORT_C void CCPixSearcher::OpenDatabaseL(const TDesC& aBaseAppClass) |
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95 { |
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96 if ( IsActive() ) |
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97 { |
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98 User::Leave(KErrInUse); |
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99 } |
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100 |
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101 iIsDatabaseOpen = EFalse; // If opening database fails, this is the safe assumption |
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102 if( iBaseAppClass ) |
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103 { |
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104 delete iBaseAppClass; |
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105 iBaseAppClass = NULL; |
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106 } |
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107 iBaseAppClass = aBaseAppClass.AllocL(); |
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108 iSubSession.OpenDatabaseL(ETrue, *iBaseAppClass, *iDefaultSearchField); |
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109 iIsDatabaseOpen = ETrue; |
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110 } |
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111 |
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112 // |
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113 // |
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114 EXPORT_C void CCPixSearcher::OpenDatabaseL(MCPixOpenDatabaseRequestObserver& aObserver, const TDesC& aBaseAppClass) |
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115 { |
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116 if ( IsActive() ) |
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117 { |
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118 User::Leave( KErrInUse); |
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119 } |
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120 |
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121 iIsDatabaseOpen = EFalse; // If opening database fails, this is the safe assumption |
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122 iObserver.iOpenDatabase = &aObserver; |
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123 |
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124 iState = EStateOpenDatabase; |
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125 if(iBaseAppClass) |
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126 { |
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127 delete iBaseAppClass; |
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128 iBaseAppClass = NULL; |
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129 } |
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130 iBaseAppClass = aBaseAppClass.AllocL(); |
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131 iSubSession.OpenDatabase(ETrue, *iBaseAppClass, *iDefaultSearchField, iStatus); // Create if not found |
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132 SetActive(); |
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133 } |
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134 |
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135 EXPORT_C void CCPixSearcher::SetAnalyzerL( const TDesC& aAnalyzer ) |
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136 { |
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137 if ( !iIsDatabaseOpen ) User::Leave(KErrNotReady); |
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138 if ( IsActive() ) User::Leave(KErrInUse); |
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139 |
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140 iSubSession.SetAnalyzerL( aAnalyzer ); |
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141 } |
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142 |
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143 EXPORT_C void CCPixSearcher::SetAnalyzerL( MCPixSetAnalyzerRequestObserver& aObserver, const TDesC& aAnalyzer ) |
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144 { |
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145 if ( !iIsDatabaseOpen ) User::Leave(KErrNotReady); |
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146 if ( IsActive() ) User::Leave(KErrInUse); |
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147 |
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148 iAnalyzer = aAnalyzer.AllocL(); |
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149 |
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150 iObserver.iSetAnalyzer = &aObserver; |
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151 iState = EStateSetAnalyzer; |
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152 iSubSession.SetAnalyzer( aAnalyzer, iStatus ); |
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153 SetActive(); |
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154 } |
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155 |
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156 // CCPixSearcher::FormQueryString() |
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157 // Suport method for SearchL-methods |
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158 HBufC* CCPixSearcher::FormQueryStringL(const TDesC& aQueryString, const TDesC& aDocumentField) |
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159 { |
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160 // Search with the specified field |
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161 if ( aDocumentField != KNullDesC ) |
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162 { |
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163 HBufC* queryString = HBufC::NewL(aQueryString.Length() + aDocumentField.Length() + 1); |
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164 TPtr searchTermsPtr = queryString->Des(); |
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165 searchTermsPtr.Append(aDocumentField); |
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166 searchTermsPtr.Append(':'); |
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167 searchTermsPtr.Append(aQueryString); |
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168 return queryString; |
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169 } |
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170 // Search with the default field |
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171 else |
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172 { |
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173 // Allocate search terms |
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174 return aQueryString.AllocL(); |
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175 } |
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176 } |
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177 |
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178 // CCPixSearcher::Search() |
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179 // Issues a new search |
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180 EXPORT_C TInt CCPixSearcher::SearchL(const TDesC& aQueryString, const TDesC& aDocumentField) |
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181 { |
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182 PERFORMANCE_LOG_START("CCPixSearcher::SearchL"); |
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183 |
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184 if ( !iIsDatabaseOpen ) |
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185 User::Leave( KErrNotReady ); |
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186 if ( IsActive() ) |
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187 { |
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188 User::Leave(KErrInUse); |
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189 } |
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190 |
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191 HBufC* query = FormQueryStringL( aQueryString, aDocumentField ); |
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192 CleanupStack::PushL( query ); |
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193 |
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194 iSubSession.SearchL( *query ); |
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195 |
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196 CleanupStack::PopAndDestroy( query ); |
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197 |
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198 return iSubSession.GetEstimatedDocumentCount(); |
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199 } |
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200 |
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201 EXPORT_C void CCPixSearcher::SearchL(MCPixSearchRequestObserver& aObserver, const TDesC& aQueryString, const TDesC& aDocumentField) |
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202 { |
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203 PERFORMANCE_LOG_START("CCPixSearcher::SearchL"); |
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204 |
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205 if ( !iIsDatabaseOpen ) User::Leave( KErrNotReady ); |
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206 if ( IsActive() ) |
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207 { |
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208 User::Leave(KErrInUse); |
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209 } |
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210 |
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211 delete iQueryString; |
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212 iQueryString = NULL; |
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213 iQueryString = FormQueryStringL( aQueryString, aDocumentField ); |
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214 |
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215 iObserver.iSearch = &aObserver; |
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216 iState = EStateSearch; |
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217 iSubSession.Search( *iQueryString, iStatus ); |
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218 SetActive(); |
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219 |
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220 } |
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221 |
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222 EXPORT_C CSearchDocument* CCPixSearcher::GetDocumentL(TInt aIndex) |
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223 { |
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224 PERFORMANCE_LOG_START("CCPixSearcher::GetDocumentL"); |
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225 |
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226 if ( !iIsDatabaseOpen ) User::Leave( KErrNotReady ); |
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227 if ( IsActive() ) |
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228 { |
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229 User::Leave(KErrInUse); |
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230 } |
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231 |
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232 return iSubSession.GetDocumentL(aIndex); |
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233 } |
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234 |
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235 EXPORT_C void CCPixSearcher::GetDocumentL(TInt aIndex, MCPixNextDocumentRequestObserver& aObserver) |
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236 { |
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237 PERFORMANCE_LOG_START("CCPixSearcher::GetDocumentL"); |
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238 |
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239 if ( !iIsDatabaseOpen ) User::Leave( KErrNotReady ); |
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240 if ( IsActive() ) |
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241 { |
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242 User::Leave(KErrInUse); // Need ::RunError to handle this |
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243 } |
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244 |
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245 iObserver.iNextDocument = &aObserver; |
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246 |
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247 iState = EStateGetDocument; |
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248 iSubSession.GetDocument(aIndex, iStatus); |
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249 SetActive(); |
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250 } |
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251 |
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252 // CCPixSearcher::RunL() |
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253 // Invoked to handle responses from the server. |
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254 void CCPixSearcher::RunL() |
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255 { |
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256 // NOTE: Should we do cleanup here (!) |
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257 |
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258 // Observer might be replaced during observer call |
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259 TObserver observer = iObserver; |
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260 iObserver.iAny = NULL; |
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261 |
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262 TState oldState = iState; |
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263 iState = EStateNone; |
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264 |
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265 switch ( oldState ) |
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266 { |
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267 case EStateOpenDatabase: |
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268 iIsDatabaseOpen = (iStatus.Int() == KErrNone); // Inform the observer about the database |
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269 if ( observer.iOpenDatabase ) |
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270 observer.iOpenDatabase->HandleOpenDatabaseResultL( iStatus.Int() ); |
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271 break; |
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272 |
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273 case EStateSetAnalyzer: |
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274 delete iAnalyzer; iAnalyzer = NULL; // cleanup |
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275 |
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276 if ( observer.iSetAnalyzer ) { |
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277 observer.iSetAnalyzer->HandleSetAnalyzerResultL( iStatus.Int() ); |
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278 } |
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279 break; |
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280 |
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281 case EStateSearch: |
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282 delete iQueryString; iQueryString = NULL; // cleanup |
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283 |
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284 // Fetch search results and call back at the observer |
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285 iEstimatedResultsCount = iSubSession.GetEstimatedDocumentCount(); |
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286 if ( observer.iSearch ) |
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287 observer.iSearch->HandleSearchResultsL(iStatus.Int(), iEstimatedResultsCount); |
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288 break; |
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289 |
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290 case EStateGetDocument: |
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291 { |
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292 // Fetch search results and call back at the observer |
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293 CSearchDocument* document = 0; |
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294 TRAPD( err, document = iSubSession.GetDocumentObjectL() ); |
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295 if ( observer.iNextDocument ) |
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296 { |
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297 if ( err == KErrNone ) |
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298 { |
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299 observer.iNextDocument->HandleDocumentL(iStatus.Int(), document); |
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300 } |
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301 else |
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302 { |
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303 observer.iNextDocument->HandleDocumentL(err, document); |
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304 } |
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305 } |
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306 } |
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307 break; |
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308 |
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309 case EStateNone: |
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310 // Do nothing, dont panic. |
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311 break; |
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312 |
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313 default: |
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314 User::Panic(KSearchClient, ESearchClientBadState); |
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315 } |
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316 } |
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317 |
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318 // CCPixSearcher::DoCancel() |
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319 // Cancels any outstanding operation. |
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320 void CCPixSearcher::DoCancel() |
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321 { |
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322 iState = EStateNone; |
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323 iSubSession.CancelAll(); |
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324 } |
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325 |
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326 // CCPixSearcher::RunError() |
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327 // Don't propagate error. |
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328 TInt CCPixSearcher::RunError(TInt /* aError */ ) |
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329 { |
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330 iSubSession.CancelAll(); |
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331 return KErrNone; |
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332 } |
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333 |
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334 // End of File |