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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: Home screen Backup/Restore observer. |
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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 "hsdatabase.h" |
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20 #include "hsbackuprestoreobserver.h" |
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21 #ifdef Q_OS_SYMBIAN |
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22 #include <connect/sbdefs.h> |
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23 #include <e32property.h> |
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24 #include <XQSettingsManager> |
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25 #include "hsbackuprestoreactivecallback.h" |
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26 #include "hsbackuprestoreobserver_p.h" |
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27 |
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28 /*! |
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29 Constructs a new observer with the given \a parent object. |
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30 */ |
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31 HsBackupRestoreObserverPrivate::HsBackupRestoreObserverPrivate(HsBackupRestoreObserver *observer, |
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32 QObject *parent): |
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33 QObject(parent), |
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34 mQ(observer), |
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35 mCallBack(NULL), |
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36 mActiveBackupClient(NULL), |
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37 mLastType(conn::EBURNormal) |
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38 { |
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39 XQPublishAndSubscribeSettingsKey backupRestoreKey(KUidSystemCategory.iUid, KUidBackupRestoreKey); |
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40 XQSettingsManager *sm = new XQSettingsManager(this); |
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41 |
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42 connect(sm,SIGNAL(valueChanged(XQSettingsKey, const QVariant &)), this, |
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43 SLOT(handleKeyChange(XQSettingsKey, const QVariant &))); |
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44 sm->startMonitoring(backupRestoreKey); |
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45 } |
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46 |
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47 /*! |
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48 Destructor. |
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49 */ |
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50 HsBackupRestoreObserverPrivate::~HsBackupRestoreObserverPrivate() |
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51 { |
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52 disconnect(sender(), SIGNAL(valueChanged(XQSettingsKey, const QVariant &)), |
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53 this, SLOT(handleKeyChange(XQSettingsKey, const QVariant&))); |
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54 delete mCallBack; |
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55 delete mActiveBackupClient; |
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56 } |
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57 |
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58 /*! |
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59 Informs active backup client, when Home screen is ready for backup/restore. |
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60 */ |
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61 void HsBackupRestoreObserverPrivate::readyForBUR() |
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62 { |
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63 mActiveBackupClient->ConfirmReadyForBURL( KErrNone ); |
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64 } |
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65 |
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66 /*! |
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67 \fn HsBackupRestoreObserverPrivate::handleKeyChange() |
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68 |
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69 Handles the key change. Creates active backup client and |
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70 informs client about backup/restore state change. |
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71 */ |
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72 |
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73 void HsBackupRestoreObserverPrivate::handleKeyChange(XQSettingsKey key, const QVariant &value) |
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74 { |
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75 conn::TBURPartType type = static_cast< conn::TBURPartType > |
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76 ( value.toInt() & conn::KBURPartTypeMask ); |
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77 |
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78 // Test if the device is going into backup or restore mode, and we are |
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79 // required to participate. |
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80 if ( key.key() == KUidBackupRestoreKey && |
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81 (( type == conn::EBURBackupFull || type == conn::EBURRestoreFull ) || |
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82 ( type == conn::EBURBackupPartial || type == conn::EBURRestorePartial )) ) |
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83 { |
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84 if ( !mCallBack ) |
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85 { |
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86 mCallBack = CHsBURActiveCallback::NewL(mQ); |
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87 } |
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88 |
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89 if ( !mActiveBackupClient ) |
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90 { |
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91 mActiveBackupClient = conn::CActiveBackupClient::NewL( mCallBack ); |
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92 |
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93 if ( ( type == conn::EBURBackupPartial || |
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94 type == conn::EBURRestorePartial ) && |
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95 !mActiveBackupClient->DoesPartialBURAffectMeL() ) |
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96 { |
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97 delete mCallBack; |
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98 mCallBack = NULL; |
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99 delete mActiveBackupClient; |
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100 mActiveBackupClient = NULL; |
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101 return; |
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102 } |
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103 mQ->backupRestoreStarted(); |
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104 } |
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105 } |
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106 else |
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107 { |
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108 if ( key.key() == KUidBackupRestoreKey && type == conn::EBURNormal ) |
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109 { |
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110 if ( (mLastType == conn::EBURBackupFull || mLastType == conn::EBURBackupPartial) || |
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111 (mLastType == conn::EBURRestorePartial || mLastType == conn::EBURRestoreFull) ) |
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112 { |
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113 mQ->backupRestoreComplited(); |
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114 } |
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115 // delete once back to normal. |
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116 delete mCallBack; |
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117 mCallBack = NULL; |
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118 delete mActiveBackupClient; |
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119 mActiveBackupClient = NULL; |
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120 } |
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121 } |
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122 |
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123 mLastType = type; |
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124 } |
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125 #endif //Q_OS_SYMBIAN |
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126 |
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127 /*! |
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128 Singleton. |
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129 */ |
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130 HsBackupRestoreObserver *HsBackupRestoreObserver::instance() |
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131 { |
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132 if (!mInstance) { |
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133 mInstance.reset(new HsBackupRestoreObserver); |
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134 } |
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135 return mInstance.data(); |
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136 } |
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137 |
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138 /*! |
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139 Constructs a new observer with the given \a parent object. |
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140 */ |
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141 HsBackupRestoreObserver::HsBackupRestoreObserver(QObject *parent) |
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142 : QObject(parent), |
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143 mBUROngoing(false) |
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144 { |
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145 #ifdef Q_OS_SYMBIAN |
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146 mD = new HsBackupRestoreObserverPrivate(this); |
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147 #endif //Q_OS_SYMBIAN |
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148 } |
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149 |
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150 /*! |
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151 Destructor. |
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152 */ |
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153 HsBackupRestoreObserver::~HsBackupRestoreObserver() |
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154 { |
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155 #ifdef Q_OS_SYMBIAN |
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156 delete mD; |
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157 #endif //Q_OS_SYMBIAN |
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158 } |
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159 |
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160 /*! |
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161 Called when backup/restore is started. |
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162 */ |
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163 void HsBackupRestoreObserver::backupRestoreStarted() |
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164 { |
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165 mBUROngoing = true; |
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166 emit event_backupRestoreStarted(); |
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167 } |
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168 |
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169 /*! |
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170 Called when backup/restore is completed. |
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171 */ |
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172 void HsBackupRestoreObserver::backupRestoreComplited() |
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173 { |
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174 mBUROngoing = false; |
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175 emit event_backupRestoreComplited(); |
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176 } |
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177 |
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178 /*! |
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179 Called when Home screen is ready for backup/restore. |
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180 */ |
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181 void HsBackupRestoreObserver::readyForBUR() |
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182 { |
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183 #ifdef Q_OS_SYMBIAN |
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184 mD->readyForBUR(); |
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185 #endif //Q_OS_SYMBIAN |
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186 } |
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187 |
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188 /*! |
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189 Returns true if bacup/restore is ongoing. |
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190 */ |
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191 bool HsBackupRestoreObserver::checkBUR() |
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192 { |
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193 return mBUROngoing; |
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194 } |
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195 /*! |
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196 Points to the observer instance. |
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197 */ |
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198 QScopedPointer<HsBackupRestoreObserver> HsBackupRestoreObserver::mInstance(0); |
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199 |
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200 // End of File |