1 /* |
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2 * Copyright (c) 2006 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: This file contains search utilities to query the landmarks Db. |
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15 * For example getting all landmarks under a category, Name of a |
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16 * particular category etc. |
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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 |
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22 |
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23 |
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24 |
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25 |
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26 // INCLUDE FILES |
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27 #include <EPos_CPosLandmark.h> |
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28 #include <EPos_CPosLandmarkDatabase.h> |
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29 #include <EPos_CPosLandmarkSearch.h> |
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30 #include <EPos_CPosLmCategoryCriteria.h> |
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31 #include "mlmkdbsearchutilsobserver.h" |
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32 #include "MLmkAOOperationObserver.h" |
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33 #include "CLmkAOOperation.h" |
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34 #include "clmkdbsearchutils.h" |
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35 |
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36 // ================= MEMBER FUNCTIONS ======================= |
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37 |
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38 // ----------------------------------------------------------------------------- |
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39 // CLmkDbSearchUtils::CLmkDbSearchUtils |
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40 // C++ default constructor can NOT contain any code, that |
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41 // might leave. |
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42 // ----------------------------------------------------------------------------- |
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43 // |
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44 CLmkDbSearchUtils::CLmkDbSearchUtils(): |
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45 CActive(EPriorityStandard) |
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46 { |
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47 CActiveScheduler::Add( this ); |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CLmkDbSearchUtils::~CLmkDbSearchUtils |
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52 // Destructor |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 EXPORT_C CLmkDbSearchUtils::~CLmkDbSearchUtils() |
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56 { |
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57 delete iSearch; |
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58 delete iDb; |
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59 if (iSearchAO) |
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60 { |
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61 iSearchAO->StopOperation(); |
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62 } |
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63 delete iSearchAO; |
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64 delete iCriteria; |
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65 if ( IsActive() ) |
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66 { |
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67 Cancel(); |
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68 } |
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69 iLmItemId.Close(); |
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70 } |
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71 |
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72 // ----------------------------------------------------------------------------- |
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73 // CLmkDbSearchUtils::NewL |
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74 // ----------------------------------------------------------------------------- |
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75 // |
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76 EXPORT_C CLmkDbSearchUtils* CLmkDbSearchUtils::NewL() |
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77 { |
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78 CLmkDbSearchUtils* self = new (ELeave) CLmkDbSearchUtils(); |
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79 CleanupStack::PushL(self); |
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80 self->ConstructL(); |
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81 CleanupStack::Pop();// self |
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82 return self; |
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83 } |
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84 |
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85 // ----------------------------------------------------------------------------- |
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86 // CLmkDbSearchUtils::ConstructL |
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87 // ----------------------------------------------------------------------------- |
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88 // |
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89 void CLmkDbSearchUtils::ConstructL() |
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90 { |
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91 iDb = CPosLandmarkDatabase::OpenL(); |
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92 iSearch = CPosLandmarkSearch::NewL( *iDb ); |
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93 iCriteria = CPosLmCategoryCriteria::NewLC(); |
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94 CleanupStack::Pop( iCriteria ); |
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95 iSearchAO = NULL; |
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96 } |
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97 |
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98 // ----------------------------------------------------------------------------- |
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99 // CLmkDbSearchUtils::GetLandmarksUnderCategoryL |
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100 // ----------------------------------------------------------------------------- |
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101 // |
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102 EXPORT_C void CLmkDbSearchUtils::GetLandmarksUnderCategoryL(MLmkDbSearchUtilsObserver* aObserver, |
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103 TPosLmItemId aCategoryId) |
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104 { |
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105 iObserver = aObserver; |
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106 iCriteria->SetCategoryItemId(aCategoryId); |
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107 TPosLmSortPref sortOrder( CPosLandmark::ELandmarkName, |
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108 TPosLmSortPref::EAscending ); |
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109 |
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110 CPosLmOperation* operation = |
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111 iSearch->StartLandmarkSearchL( *iCriteria , sortOrder ); |
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112 |
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113 CleanupStack::PushL( operation ); |
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114 if (iSearchAO) |
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115 { |
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116 iSearchAO->StopOperation(); |
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117 } |
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118 delete iSearchAO; // Cancel if any pending requests |
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119 iSearchAO = NULL; |
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120 iSearchAO = CLmkAOOperation::NewL( operation, |
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121 *this, |
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122 MLmkAOOperationObserver::ESearch, |
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123 EFalse ); |
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124 |
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125 CleanupStack::Pop( operation ); // ownership transferred |
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126 iSearchAO->StartOperation(); |
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127 } |
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128 |
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129 // ----------------------------------------------------------------------------- |
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130 // CLmkDbSearchUtils::GetCategoryNameL |
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131 // ----------------------------------------------------------------------------- |
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132 // |
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133 EXPORT_C HBufC* CLmkDbSearchUtils::GetCategoryNameL(TPosLmItemId aCategoryId) |
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134 { |
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135 CPosLmCategoryManager* mgr = CPosLmCategoryManager::NewL( *iDb ); |
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136 CleanupStack::PushL( mgr ); |
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137 // Leaves with KErrNotFound if category doesn't exist |
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138 CPosLandmarkCategory* category = mgr->ReadCategoryLC( aCategoryId ); |
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139 TPtrC categoryName; |
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140 User::LeaveIfError(category->GetCategoryName(categoryName)); |
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141 // The caller will take ownership of the buffer |
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142 HBufC* retCategoryName = HBufC::NewL(categoryName.Length()); |
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143 TPtr ptr = retCategoryName->Des(); |
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144 ptr.Copy(categoryName); |
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145 CleanupStack::PopAndDestroy( 2 ); // category and mgr |
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146 return retCategoryName; |
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147 } |
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148 |
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149 // ----------------------------------------------------------------------------- |
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150 // CLmkDbSearchUtils::GetLandmarkForIdL |
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151 // ----------------------------------------------------------------------------- |
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152 // |
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153 EXPORT_C CPosLandmark* CLmkDbSearchUtils::GetLandmarkForIdL(TPosLmItemId aLandmarkId) |
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154 { |
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155 CPosLandmark* lmk = iDb->ReadLandmarkLC(aLandmarkId); |
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156 CleanupStack::Pop(); // ReadLandmarkLC |
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157 return lmk; |
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158 } |
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159 |
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160 // ----------------------------------------------------------------------------- |
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161 // CLmkDbSearchUtils::GetLandmarksL |
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162 // ----------------------------------------------------------------------------- |
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163 // |
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164 EXPORT_C void CLmkDbSearchUtils::GetLandmarksL(MLmkDbSearchUtilsObserver* aObserver, |
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165 RArray<TPosLmItemId> aLmItemId, |
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166 RPointerArray<CPosLandmark>* aArray) |
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167 { |
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168 iLmkArray = aArray; |
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169 iLmItemId = aLmItemId; |
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170 iSearchIndex = 0; |
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171 iObserver = aObserver; |
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172 SetActive(); |
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173 TRequestStatus *status = &iStatus; |
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174 User::RequestComplete(status, KErrNone); |
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175 } |
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176 |
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177 // ----------------------------------------------------------------------------- |
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178 // CLmkDbSearchUtils::RunL |
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179 // ----------------------------------------------------------------------------- |
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180 // |
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181 void CLmkDbSearchUtils::RunL() |
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182 { |
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183 if(iSearchIndex >= iLmItemId.Count()) |
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184 { |
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185 iLmItemId.Close(); |
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186 iObserver->HandleLmkSearchNotifyL(); |
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187 } |
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188 else |
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189 { |
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190 TPosLmItemId itemId = iLmItemId[iSearchIndex]; |
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191 CPosLandmark* landmark = iDb->ReadLandmarkLC(itemId); |
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192 iLmkArray->Append(landmark); |
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193 CleanupStack::Pop(); // ReadLandmarkLC |
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194 ++iSearchIndex; |
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195 SetActive(); |
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196 TRequestStatus *status = &iStatus; |
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197 User::RequestComplete(status, KErrNone); |
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198 } |
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199 } |
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200 |
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201 // ----------------------------------------------------------------------------- |
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202 // CLmkDbSearchUtils::DoCancel |
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203 // ----------------------------------------------------------------------------- |
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204 // |
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205 void CLmkDbSearchUtils::DoCancel() |
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206 { |
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207 |
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208 } |
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209 |
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210 // ----------------------------------------------------------------------------- |
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211 // CLmkDbSearchUtils::HandleOperationL |
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212 // ----------------------------------------------------------------------------- |
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213 // |
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214 void CLmkDbSearchUtils::HandleOperationL(TOperationTypes /*aType*/, |
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215 TReal32 /*aProgress*/, |
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216 TInt /*aStatus*/ ) |
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217 { |
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218 CPosLmItemIterator* iterator = iSearch->MatchIteratorL(); |
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219 CleanupStack::PushL( iterator ); |
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220 RArray<TPosLmItemId> itemIdArray; |
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221 CleanupClosePushL( itemIdArray ); |
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222 iterator->GetItemIdsL( itemIdArray, 0, iterator->NumOfItemsL() ); |
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223 if ( iObserver ) |
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224 { |
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225 iObserver->HandleCategorySearchNotifyL( itemIdArray ); |
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226 } |
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227 CleanupStack::PopAndDestroy(); //itemIdArray |
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228 CleanupStack::PopAndDestroy( iterator ); |
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229 } |
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230 |
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231 |
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