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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Symbian Foundation License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // This is the Cpp file which contains the utility functions to delete all children in the |
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15 // message store |
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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 /** |
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22 @file |
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23 */ |
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24 |
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25 |
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26 // User includes |
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27 #include <t_utilsdeleteallchildren.h> |
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28 |
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29 // Epoc includes |
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30 #include <msvapi.h> |
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31 #include <msvuids.h> |
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32 |
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33 /** |
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34 CT_MsgUtilsDeleteAllChildren() |
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35 Constructor |
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36 |
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37 @param aSession |
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38 An object of CMsvSession |
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39 |
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40 @param aParentId |
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41 Entry ID of whose children would be deleted |
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42 */ |
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43 EXPORT_C CT_MsgUtilsDeleteAllChildren::CT_MsgUtilsDeleteAllChildren(CMsvSession* aSession,TMsvId aParentId) |
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44 : CActive(EPriorityNormal), iSession(aSession), iParentId(aParentId) |
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45 { |
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46 CActiveScheduler::Add(this); |
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47 } |
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48 |
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49 |
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50 /** |
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51 ~CT_MsgUtilsDeleteAllChildren() |
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52 Destructor |
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53 */ |
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54 CT_MsgUtilsDeleteAllChildren::~CT_MsgUtilsDeleteAllChildren() |
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55 { |
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56 delete iEntry; |
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57 delete iSelection; |
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58 } |
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59 |
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60 |
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61 /** |
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62 StartL() |
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63 Deletes the children entries of the specified parent |
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64 |
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65 @param aStatus |
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66 */ |
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67 EXPORT_C void CT_MsgUtilsDeleteAllChildren::StartL(TRequestStatus& aStatus) |
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68 { |
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69 StartL(EFalse, aStatus); |
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70 } |
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71 |
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72 /** |
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73 StartL() |
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74 Deletes the children entries of the specified parent |
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75 |
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76 @param aBlockDelete Delete all in one go |
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77 @param aStatus |
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78 */ |
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79 EXPORT_C void CT_MsgUtilsDeleteAllChildren::StartL(TBool aBlockDelete, TRequestStatus& aStatus) |
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80 { |
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81 iRequestStatus = &aStatus; |
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82 aStatus = KRequestPending; |
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83 |
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84 // Creates a new CMsvEntry for the specified parent entry ID nad sets the context |
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85 // to that entry. |
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86 if(iEntry==NULL) |
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87 { |
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88 iEntry = CMsvEntry::NewL(*iSession,iParentId,TMsvSelectionOrdering(KMsvNoGrouping,EMsvSortByNone,ETrue)); |
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89 } |
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90 iEntry->SetEntryL(iParentId); |
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91 |
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92 // Gets a selection containing the IDs of children |
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93 iSelection = iEntry->ChildrenL(); |
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94 iTotalChildren = iSelection->Count(); |
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95 |
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96 // If the entry has no children entries, then signals the thread that the asynchronous request |
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97 // is complete. |
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98 if (iTotalChildren == 0) |
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99 { |
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100 User::RequestComplete(iRequestStatus,KErrNone); |
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101 } |
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102 |
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103 |
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104 // If the entry has children entries then,delete child entries of the context |
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105 // recursively through all the descendants |
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106 else |
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107 { |
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108 if (aBlockDelete) |
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109 { |
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110 iOperation = iEntry->DeleteL(*iSelection ,iStatus); |
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111 iState = EBlockDelete; |
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112 } |
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113 else |
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114 { |
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115 iOperation = iEntry->DeleteL((*iSelection)[iCurrentChild],iStatus); |
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116 iState = EStateThisLevel; |
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117 } |
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118 |
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119 SetActive(); |
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120 } |
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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 DoCancel() |
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126 Implements cancellation of an outstanding request |
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127 |
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128 @see CActive::Cancel() |
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129 */ |
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130 void CT_MsgUtilsDeleteAllChildren::DoCancel() |
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131 { |
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132 switch (iState) |
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133 { |
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134 case EStateThisLevel: |
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135 case EBlockDelete: |
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136 iOperation->Cancel(); |
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137 break; |
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138 |
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139 case EStateNextLevel: |
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140 iNextLevel->Cancel(); |
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141 break; |
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142 } |
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143 } |
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144 |
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145 |
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146 /** |
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147 RunL() |
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148 Handles an active object's request completion event |
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149 |
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150 @see CActive::RunL() |
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151 */ |
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152 void CT_MsgUtilsDeleteAllChildren::RunL() |
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153 { |
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154 TInt err; |
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155 |
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156 switch (iState) |
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157 { |
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158 case EStateThisLevel: |
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159 |
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160 err = CT_MsgUtilsDeleteAllChildren::FinalProgressStatus(*iOperation,iStatus); |
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161 delete iOperation; |
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162 iOperation = NULL; |
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163 |
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164 switch (err) |
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165 { |
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166 case KErrAccessDenied: |
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167 iUndeletedChildren++; |
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168 if(iNextLevel==NULL) |
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169 { |
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170 iNextLevel = new (ELeave) CT_MsgUtilsDeleteAllChildren(iSession,(*iSelection)[iCurrentChild]); |
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171 } |
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172 iNextLevel->StartL(iStatus); |
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173 SetActive(); |
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174 iState = EStateNextLevel; |
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175 break; |
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176 |
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177 case KErrNone: |
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178 if (++iCurrentChild == iTotalChildren) |
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179 { |
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180 User::RequestComplete(iRequestStatus,KErrNone); |
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181 } |
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182 else |
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183 { |
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184 iOperation = iEntry->DeleteL((*iSelection)[iCurrentChild],iStatus); |
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185 SetActive(); |
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186 } |
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187 break; |
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188 |
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189 default: |
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190 User::RequestComplete(iRequestStatus,err); |
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191 break; |
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192 } |
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193 break; |
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194 |
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195 case EStateNextLevel: |
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196 err = iStatus.Int(); |
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197 iUndeletedChildren += iNextLevel->Undeleted(); |
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198 delete iNextLevel; |
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199 iNextLevel = NULL; |
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200 |
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201 switch (err) |
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202 { |
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203 case KErrNone: |
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204 if (++iCurrentChild == iTotalChildren) |
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205 { |
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206 User::RequestComplete(iRequestStatus,KErrNone); |
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207 } |
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208 else |
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209 { |
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210 iOperation = iEntry->DeleteL((*iSelection)[iCurrentChild],iStatus); |
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211 SetActive(); |
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212 iState = EStateThisLevel; |
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213 } |
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214 break; |
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215 default: |
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216 User::RequestComplete(iRequestStatus,err); |
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217 break; |
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218 } |
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219 break; |
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220 |
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221 case EBlockDelete: |
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222 { |
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223 err = CT_MsgUtilsDeleteAllChildren::FinalProgressStatus(*iOperation,iStatus); |
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224 delete iOperation; |
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225 iOperation = NULL; |
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226 |
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227 User::RequestComplete(iRequestStatus,err); |
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228 break; |
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229 } |
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230 } |
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231 } |
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232 |
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233 |
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234 /** |
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235 FinalProgressStatus() |
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236 This function gets the information about a completed operation for the local entries.. |
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237 |
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238 @param aOperation |
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239 Used to get progress information about the operation |
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240 |
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241 @param aStatus |
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242 @return |
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243 The error code |
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244 */ |
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245 EXPORT_C TInt CT_MsgUtilsDeleteAllChildren::FinalProgressStatus(CMsvOperation& aOperation,const TRequestStatus& aStatus) |
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246 { |
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247 TInt err = KErrNone; |
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248 |
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249 if (aOperation.Mtm() == KUidMsvLocalServiceMtm) |
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250 { |
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251 TPckgBuf<TMsvLocalOperationProgress> progress; |
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252 progress.Copy(aOperation.FinalProgress()); |
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253 err = progress().iError; |
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254 } |
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255 else |
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256 { |
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257 if (iState == EBlockDelete) |
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258 { |
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259 TRAP_IGNORE(err = McliUtils::GetProgressErrorL(aOperation)); |
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260 } |
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261 else |
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262 { |
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263 err = aStatus.Int(); |
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264 } |
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265 } |
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266 return (err); |
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267 } |