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1 /* |
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2 * Copyright (c) 2002-2005 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: Provides methods for CNSmlDMDbNotifier class. |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "NSmlDMDbNotifier.h" |
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20 #include "NSmlDMSyncDebug.h" |
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21 #include "NSmlDMdef.h" |
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22 |
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23 // ----------------------------------------------------------------------------- |
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24 // CNSmlDMDbNotifier::CNSmlDMDbNotifier |
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25 // ----------------------------------------------------------------------------- |
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26 // |
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27 CNSmlDMDbNotifier::CNSmlDMDbNotifier( RSyncMLSession* aSyncSession, |
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28 MNSmlDMDbEventHandler* aHandler) |
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29 : iSyncSession(aSyncSession), |
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30 iHandler( aHandler ) |
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31 { |
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32 } |
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33 |
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34 |
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35 // ----------------------------------------------------------------------------- |
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36 // CNSmlDMDbNotifier::NewL |
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37 // ----------------------------------------------------------------------------- |
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38 // |
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39 CNSmlDMDbNotifier* CNSmlDMDbNotifier::NewL( RSyncMLSession* aSyncSession, |
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40 MNSmlDMDbEventHandler* aHandler) |
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41 { |
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42 CNSmlDMDbNotifier* self = new (ELeave) CNSmlDMDbNotifier( aSyncSession, |
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43 aHandler ); |
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44 CleanupStack::PushL(self); |
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45 self->ConstructL(); |
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46 CleanupStack::Pop(self); |
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47 return self; |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CNSmlDMDbNotifier::ConstructL |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 void CNSmlDMDbNotifier::ConstructL() |
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55 { |
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56 iActiveCaller = CNSmlDMActiveCaller::NewL(this); |
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57 } |
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58 |
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59 // ----------------------------------------------------------------------------- |
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60 // Destructor |
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61 // ----------------------------------------------------------------------------- |
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62 // |
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63 CNSmlDMDbNotifier::~CNSmlDMDbNotifier() |
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64 { |
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65 delete iActiveCaller; |
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66 iList.Close(); |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // CNSmlDMDbNotifier::RequestL |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 void CNSmlDMDbNotifier::RequestL() |
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74 { |
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75 Session().RequestEventL( *this ); // request MSyncMLEventObserver events |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CNSmlDMDbNotifier::OnSyncMLSessionEvent |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 void CNSmlDMDbNotifier::OnSyncMLSessionEvent( TEvent aEvent, |
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83 TInt aIdentifier, |
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84 TInt aError, |
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85 TInt /*aAdditionalData*/ ) |
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86 { |
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87 TNSmlDMDbEvent event; |
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88 |
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89 event.iType = aEvent; |
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90 event.iError = aError; |
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91 |
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92 if (aEvent == MSyncMLEventObserver::EProfileCreated || |
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93 aEvent == MSyncMLEventObserver::EProfileChanged || |
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94 aEvent == MSyncMLEventObserver::EProfileDeleted ) |
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95 { |
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96 event.iProfileId = aIdentifier; |
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97 } |
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98 else |
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99 { |
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100 event.iProfileId = KErrNotFound; |
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101 } |
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102 |
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103 TRAP_IGNORE( iList.AppendL (event) ); |
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104 |
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105 CallObserverWithDelay(); |
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106 TRAP_IGNORE( RequestL() ); |
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107 } |
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108 |
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109 // ----------------------------------------------------------------------------- |
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110 // CNSmlDMDbNotifier::SetDisabled |
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111 // ----------------------------------------------------------------------------- |
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112 // |
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113 void CNSmlDMDbNotifier::SetDisabled( TBool aDisable ) |
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114 { |
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115 iDisabled = aDisable; |
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116 } |
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117 |
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118 // ----------------------------------------------------------------------------- |
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119 // CNSmlDMDbNotifier::Reset |
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120 // ----------------------------------------------------------------------------- |
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121 // |
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122 void CNSmlDMDbNotifier::Reset() |
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123 { |
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124 iDisabled = EFalse; |
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125 iList.Reset(); |
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126 } |
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127 |
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128 // ----------------------------------------------------------------------------- |
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129 // CNSmlDMDbNotifier::EventCount |
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130 // ----------------------------------------------------------------------------- |
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131 // |
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132 TInt CNSmlDMDbNotifier::EventCount() |
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133 { |
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134 return iList.Count(); |
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135 } |
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136 |
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137 // ----------------------------------------------------------------------------- |
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138 // CNSmlDMDbNotifier::Event |
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139 // ----------------------------------------------------------------------------- |
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140 // |
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141 TNSmlDMDbEvent CNSmlDMDbNotifier::Event( TInt aIndex ) |
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142 { |
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143 __ASSERT_DEBUG( aIndex >= 0 && aIndex < iList.Count(), |
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144 TUtil::Panic(KErrGeneral) ); |
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145 |
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146 return iList[aIndex]; |
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147 } |
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148 |
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149 // ----------------------------------------------------------------------------- |
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150 // CNSmlDMDbNotifier::Session |
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151 // ----------------------------------------------------------------------------- |
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152 // |
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153 RSyncMLSession& CNSmlDMDbNotifier::Session() |
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154 { |
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155 __ASSERT_DEBUG( iSyncSession, TUtil::Panic(KErrGeneral) ); |
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156 |
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157 return *iSyncSession; |
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158 } |
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159 |
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160 // ----------------------------------------------------------------------------- |
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161 // CNSmlDMDbNotifier::CallObserverWithDelay |
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162 // |
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163 // This is needed to avoid unnecessary observer calls (eg. in case 10 events are |
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164 // reported in short time only last is reported to observer). |
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165 // ----------------------------------------------------------------------------- |
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166 // |
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167 void CNSmlDMDbNotifier::CallObserverWithDelay() |
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168 { |
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169 iActiveCaller->Cancel(); |
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170 iActiveCaller->Start( KErrNone, KListBoxUpdateDelay ); |
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171 } |
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172 |
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173 // ----------------------------------------------------------------------------- |
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174 // CNSmlDMDbNotifier::CallObserver |
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175 // |
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176 // this function investigates received events from last observer call |
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177 // and calls observer to inform UI what to do. |
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178 // ----------------------------------------------------------------------------- |
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179 // |
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180 void CNSmlDMDbNotifier::CallObserver() |
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181 { |
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182 TNSmlDMDbEvent event; |
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183 event.iProfileId = 0; |
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184 event.iType = 0; |
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185 event.iError = 0; |
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186 // |
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187 // check for critical error |
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188 // |
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189 if ( FindCloseEvent() != KErrNotFound ) |
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190 { |
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191 event.iType = EClose; |
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192 TRAP_IGNORE( iHandler->HandleDbEventL( event ) ); |
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193 return; // some database problem - UI should close |
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194 } |
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195 |
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196 // |
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197 // check if only one profile has changed |
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198 // |
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199 TInt index = FindSingleProfileEvent(); |
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200 if ( index != KErrNotFound ) |
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201 { |
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202 TNSmlDMDbEvent e = iList[index]; |
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203 if (e.iType == MSyncMLEventObserver::EProfileDeleted) |
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204 { |
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205 event.iType = EDelete; |
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206 event.iProfileId = e.iProfileId; |
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207 } |
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208 else |
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209 { |
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210 event.iType = EUpdate; |
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211 event.iProfileId = e.iProfileId; |
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212 } |
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213 |
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214 TRAP_IGNORE( iHandler->HandleDbEventL( event ) ); |
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215 return; |
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216 } |
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217 |
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218 // |
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219 // check if 2 or more profiles have changed |
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220 // |
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221 if (FindProfileEvent() != KErrNotFound) |
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222 { |
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223 event.iType = EUpdateAll; |
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224 TRAP_IGNORE( iHandler->HandleDbEventL( event ) ); |
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225 return; |
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226 } |
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227 } |
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228 |
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229 // ----------------------------------------------------------------------------- |
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230 // CNSmlDMDbNotifier::FindCloseEvent |
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231 // ----------------------------------------------------------------------------- |
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232 // |
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233 TInt CNSmlDMDbNotifier::FindCloseEvent() |
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234 { |
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235 TInt count = iList.Count(); |
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236 |
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237 for ( TInt index = 0; index < count; index++ ) |
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238 { |
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239 TNSmlDMDbEvent event = iList[index]; |
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240 if ( event.iType == MSyncMLEventObserver::EServerTerminated ) |
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241 { |
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242 return index; |
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243 } |
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244 } |
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245 |
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246 return KErrNotFound; |
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247 } |
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248 |
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249 // ----------------------------------------------------------------------------- |
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250 // CNSmlDMDbNotifier::FindProfileEvent |
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251 // ----------------------------------------------------------------------------- |
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252 // |
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253 TInt CNSmlDMDbNotifier::FindProfileEvent() |
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254 { |
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255 TInt count = iList.Count(); |
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256 |
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257 for ( TInt index = 0; index < count; index++ ) |
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258 { |
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259 TNSmlDMDbEvent event = iList[index]; |
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260 if ( event.iProfileId != KErrNotFound ) |
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261 { |
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262 return index; |
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263 } |
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264 } |
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265 |
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266 return KErrNotFound; |
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267 } |
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268 |
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269 // ----------------------------------------------------------------------------- |
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270 // CNSmlDMDbNotifier::FindSingleProfileEvent |
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271 // ----------------------------------------------------------------------------- |
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272 // |
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273 TInt CNSmlDMDbNotifier::FindSingleProfileEvent() |
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274 { |
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275 TInt count = iList.Count(); |
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276 |
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277 // find out whether list contains update events for one profile only |
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278 for ( TInt index = 0; index < count; index++ ) |
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279 { |
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280 TNSmlDMDbEvent event = iList[index]; |
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281 if ( event.iProfileId != KErrNotFound && |
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282 IsUniqueProfileId(event.iProfileId) ) |
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283 { |
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284 return index; |
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285 } |
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286 } |
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287 |
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288 return KErrNotFound; |
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289 } |
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290 |
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291 // ----------------------------------------------------------------------------- |
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292 // CNSmlDMDbNotifier::IsUniqueProfileId |
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293 // ----------------------------------------------------------------------------- |
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294 // |
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295 TBool CNSmlDMDbNotifier::IsUniqueProfileId( TInt aId ) |
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296 { |
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297 TInt count = iList.Count(); |
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298 |
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299 for ( TInt index = 0; index < count; index++ ) |
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300 { |
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301 TNSmlDMDbEvent event = iList[index]; |
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302 if ( event.iProfileId != KErrNotFound && event.iProfileId != aId ) |
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303 { |
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304 return EFalse; |
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305 } |
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306 } |
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307 |
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308 return ETrue; |
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309 } |
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310 |
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311 // ----------------------------------------------------------------------------- |
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312 // CNSmlDMDbNotifier::HandleActiveCallL |
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313 // ----------------------------------------------------------------------------- |
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314 // |
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315 void CNSmlDMDbNotifier::HandleActiveCallL() |
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316 { |
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317 if ( iDisabled ) |
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318 { |
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319 return; // UI has disabled notifications |
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320 } |
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321 |
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322 if ( iSyncRunning ) |
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323 { |
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324 return; // no UI updates while syncing |
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325 } |
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326 |
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327 CallObserver(); |
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328 Reset(); |
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329 } |
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330 |
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331 // End of File |