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1 /* |
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2 * Copyright (c) 2004 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: Concrete client login status handler. |
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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 <e32std.h> |
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20 #include "CCnUiClientStatusHandler.h" |
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21 |
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22 /** |
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23 * Channel value for no logged |
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24 * in clients. Logged in clients are |
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25 * logically orred channel value. |
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26 * @since 2.1 |
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27 */ |
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28 const TInt KCnUiNoLoggedInClients = 0; |
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29 |
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30 |
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31 |
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32 // ================= GLOBAL FUNCTIONS ======================= |
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33 // ----------------------------------------------------------------------------- |
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34 // CreateClientStatusHandlerLC() |
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35 // ----------------------------------------------------------------------------- |
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36 // |
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37 GLREF_C MCnUiClientStatusHandler* CreateClientStatusHandlerLC() |
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38 { |
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39 return CCnUiClientStatusHandler::NewLC(); |
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40 } |
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41 |
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42 |
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43 |
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44 // ================= MEMBER FUNCTIONS ======================= |
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45 // Two-phased constructor. |
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46 CCnUiClientStatusHandler* CCnUiClientStatusHandler::NewLC() |
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47 { |
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48 CCnUiClientStatusHandler* self = new ( ELeave ) CCnUiClientStatusHandler; |
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49 CleanupStack::PushL( self ); |
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50 self->ConstructL(); |
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51 return self; |
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52 } |
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53 |
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54 |
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55 // Destructor |
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56 CCnUiClientStatusHandler::~CCnUiClientStatusHandler() |
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57 { |
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58 delete iLoginStastusChannel; |
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59 } |
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60 |
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61 // C++ default constructor can NOT contain any code, that |
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62 // might leave. |
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63 // |
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64 CCnUiClientStatusHandler::CCnUiClientStatusHandler() |
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65 { |
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66 } |
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67 |
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68 |
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69 // Symbian OS default constructor can leave. |
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70 void CCnUiClientStatusHandler::ConstructL() |
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71 { |
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72 iLoginStastusChannel = CCnUiGroupChannel::NewL( ECnUiGlobalGroup, |
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73 ECnUiClientLoginLogoutStateChannel, |
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74 EFalse ); //permanent data |
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75 } |
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76 |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CCnUiClientStatusHandler::AnyClientLoggedIn() |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 TBool CCnUiClientStatusHandler::AnyClientLoggedIn() |
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83 { |
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84 TInt statusWord = KCnUiNoLoggedInClients; |
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85 iLoginStastusChannel->Read( statusWord ); |
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86 |
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87 //any client logged in |
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88 if ( statusWord != 0 ) |
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89 { |
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90 return ETrue; |
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91 } |
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92 |
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93 return EFalse; |
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94 } |
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95 |
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96 |
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97 // ----------------------------------------------------------------------------- |
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98 // CCnUiClientStatusHandler::ClientLoggedIn() |
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99 // ----------------------------------------------------------------------------- |
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100 // |
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101 TBool CCnUiClientStatusHandler::ClientLoggedIn( TIMPSConnectionClient aClient ) |
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102 { |
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103 TInt statusWord = KCnUiNoLoggedInClients; |
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104 iLoginStastusChannel->Read( statusWord ); |
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105 |
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106 //Is the asked client logged in |
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107 if ( statusWord & ( TInt ) aClient ) |
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108 { |
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109 return ETrue; |
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110 } |
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111 |
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112 return EFalse; |
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113 } |
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114 |
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115 |
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116 // ----------------------------------------------------------------------------- |
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117 // CCnUiClientStatusHandler::SetNoClientsLoggedInL() |
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118 // ----------------------------------------------------------------------------- |
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119 // |
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120 void CCnUiClientStatusHandler::SetNoClientsLoggedInL() |
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121 { |
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122 iLoginStastusChannel->WriteL( KCnUiNoLoggedInClients ); |
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123 } |
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124 |
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125 |
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126 // ----------------------------------------------------------------------------- |
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127 // CCnUiClientStatusHandler::SetClientLoggedInL() |
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128 // ----------------------------------------------------------------------------- |
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129 // |
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130 void CCnUiClientStatusHandler::SetClientLoggedInL( TIMPSConnectionClient aClient ) |
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131 { |
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132 TInt existingClients = KCnUiNoLoggedInClients; |
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133 iLoginStastusChannel->Read( existingClients ); |
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134 |
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135 //this client is among the other ones |
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136 TInt loggedInClients = existingClients | ( TInt ) aClient; |
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137 iLoginStastusChannel->WriteL( loggedInClients ); |
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138 } |
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139 |
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140 |
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141 // ----------------------------------------------------------------------------- |
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142 // CCnUiClientStatusHandler::SetClientLoggedOutL() |
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143 // ----------------------------------------------------------------------------- |
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144 // |
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145 void CCnUiClientStatusHandler::SetClientLoggedOutL( TIMPSConnectionClient aClient ) |
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146 { |
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147 TInt existingClients = KCnUiNoLoggedInClients; |
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148 iLoginStastusChannel->Read( existingClients ); |
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149 |
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150 |
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151 TInt loggedInClients = existingClients & ~( TInt ) aClient; |
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152 iLoginStastusChannel->WriteL( loggedInClients ); |
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153 } |
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154 |
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155 |
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156 |
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157 // ----------------------------------------------------------------------------- |
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158 // CCnUiClientStatusHandler::NotifyClientStatusChangesL() |
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159 // ----------------------------------------------------------------------------- |
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160 // |
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161 void CCnUiClientStatusHandler::NotifyClientLoginStatusChangesL( |
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162 MCnUiClientStatusObserver* aObserver, |
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163 TIMPSConnectionClient aClientToNotify ) |
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164 { |
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165 __ASSERT_ALWAYS( !iClntStatusObserver, User::Leave( KErrInUse ) ); |
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166 __ASSERT_ALWAYS( aObserver, User::Leave( KErrArgument ) ); |
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167 |
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168 //start the notifier |
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169 iLoginStastusChannel->ListenL( this ); |
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170 |
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171 //store observer information |
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172 iClntStatusObserver = aObserver; |
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173 iObservedClient = aClientToNotify; |
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174 } |
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175 |
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176 |
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177 // ----------------------------------------------------------------------------- |
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178 // CCnUiClientStatusHandler::CancelClientStatusNotify() |
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179 // ----------------------------------------------------------------------------- |
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180 // |
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181 void CCnUiClientStatusHandler::CancelClientStatusNotify() |
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182 { |
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183 iLoginStastusChannel->CancelListen(); |
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184 iClntStatusObserver = NULL; |
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185 } |
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186 |
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187 |
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188 // ----------------------------------------------------------------------------- |
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189 // CCnUiClientStatusHandler::HandleNotifyL() |
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190 // from MSharedDataNotifyHandler |
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191 // ----------------------------------------------------------------------------- |
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192 // |
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193 void CCnUiClientStatusHandler::HandleChannelMsg( TInt /*aGroupId*/, |
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194 TGCChannelID /*aChannelId*/, |
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195 TInt aRetMsg ) |
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196 { |
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197 TBool clientNowLoggedIn = EFalse; |
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198 //Is the asked client logged in |
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199 if ( aRetMsg & ( TInt ) iObservedClient ) |
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200 { |
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201 clientNowLoggedIn = ETrue; |
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202 } |
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203 |
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204 iClntStatusObserver->HandleClientLoginStatusChange( iObservedClient, clientNowLoggedIn ); |
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205 } |
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206 |
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207 // End of File |