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1 /* |
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2 * Copyright (c) 2005-2010 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: Network info listener. |
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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 <NetworkHandlingProxy.h> |
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20 #include <CNWSession.h> |
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21 #include "ainetworkinfolistener.h" |
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22 #include "ainetworkinfoobserver.h" |
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23 #include "debug.h" |
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24 #include <exterror.h> // for KErrGsmMMNetworkFailure |
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25 #include <featmgr.h> // for FeatureManager |
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26 |
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27 const TInt KAiMessageCacheGranularity = 4; |
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28 |
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29 // ======== MEMBER FUNCTIONS ======== |
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30 |
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31 CAiNetworkInfoListener::CAiNetworkInfoListener() |
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32 : iKeyProperties( 0, ECmpTInt ) |
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33 { |
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34 } |
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35 |
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36 |
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37 void CAiNetworkInfoListener::ConstructL() |
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38 { |
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39 //Store pointer in TLS |
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40 User::LeaveIfError( Dll::SetTls( this ) ); |
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41 |
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42 //Create network handling engine session. |
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43 iSession = CreateL( *this, iInfo ); |
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44 iShowOpInd = EFalse; |
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45 //Create message cache |
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46 iMessageCache = new( ELeave )CArrayFixFlat |
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47 <MNWMessageObserver::TNWMessages>( KAiMessageCacheGranularity ); |
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48 } |
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49 |
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50 |
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51 CAiNetworkInfoListener* CAiNetworkInfoListener::InstanceL() |
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52 { |
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53 CAiNetworkInfoListener* self = static_cast<CAiNetworkInfoListener*>( Dll::Tls() ); |
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54 |
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55 if( !self ) |
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56 { |
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57 //If instance of network listener is not already constructed, create it |
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58 self = new( ELeave ) CAiNetworkInfoListener; |
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59 CleanupStack::PushL( self ); |
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60 self->ConstructL(); |
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61 CleanupStack::Pop( self ); |
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62 } |
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63 |
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64 //increase access count |
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65 self->IncAccessCount(); |
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66 return self; |
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67 } |
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68 |
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69 |
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70 void CAiNetworkInfoListener::Release() |
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71 { |
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72 //Decrease access count, if it goes to zero, delete object. |
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73 if( !DecAccessCount() ) |
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74 { |
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75 delete this; |
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76 } |
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77 } |
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78 |
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79 |
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80 CAiNetworkInfoListener::~CAiNetworkInfoListener() |
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81 { |
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82 //Remove object from TLS |
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83 Dll::SetTls( NULL ); |
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84 iObservers.Reset(); |
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85 delete iSession; |
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86 delete iMessageCache; |
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87 } |
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88 |
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89 |
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90 TInt CAiNetworkInfoListener::IncAccessCount() |
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91 { |
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92 return iAccessCount++; |
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93 } |
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94 |
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95 TInt CAiNetworkInfoListener::DecAccessCount() |
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96 { |
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97 return --iAccessCount; |
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98 } |
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99 |
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100 |
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101 void CAiNetworkInfoListener::AddObserverL( MAiNetworkInfoObserver& aObserver ) |
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102 { |
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103 //Removing observer doesn't remove slots from array, removed observers are only |
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104 //set to NULL. Reason for this is found out later on the code. Adding observer |
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105 //first tries to find free slot, if it is not found, observer is appended to the |
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106 //array. |
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107 TInt freeSlot = iObservers.Find( NULL ); |
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108 |
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109 if( freeSlot == KErrNotFound ) |
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110 { |
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111 User::LeaveIfError( iObservers.Append( &aObserver ) ); |
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112 } |
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113 else |
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114 { |
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115 User::LeaveIfError( iObservers.Insert( &aObserver, freeSlot ) ); |
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116 } |
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117 } |
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118 |
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119 void CAiNetworkInfoListener::RemoveObserver( MAiNetworkInfoObserver& aObserver ) |
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120 { |
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121 //Remove observer, removing is done by replacing it with NULL pointer. |
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122 const TInt count( iObservers.Count() ); |
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123 |
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124 for( TInt i( 0 ); i < count; i++ ) |
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125 { |
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126 if( iObservers[i] == &aObserver ) |
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127 { |
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128 //replace it with NULL |
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129 iObservers.Remove( i ); |
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130 iObservers.Insert( NULL, i ); |
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131 break; |
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132 } |
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133 } |
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134 } |
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135 |
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136 |
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137 const TNWInfo& CAiNetworkInfoListener::NetworkInfo() const |
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138 { |
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139 return iInfo; |
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140 } |
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141 |
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142 TBool CAiNetworkInfoListener::IsOperatorIndicatorAllowed() const |
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143 { |
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144 return iShowOpInd; |
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145 } |
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146 |
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147 TBool CAiNetworkInfoListener::MessageReceived( MNWMessageObserver::TNWMessages aMessage ) |
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148 { |
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149 //check if the message is in message cache. |
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150 TInt index( KErrNotFound ); |
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151 TBool found = ( iMessageCache->FindIsq( aMessage, iKeyProperties, index ) == 0 ); |
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152 return found; |
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153 } |
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154 |
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155 |
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156 void CAiNetworkInfoListener::HandleNetworkMessage( const TNWMessages aMessage ) |
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157 { |
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158 __PRINT(__DBG_FORMAT("XAI: Handle NW message %d"), aMessage ); |
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159 //Insert message into the message cache. Only one messsage of one type. |
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160 TRAPD( err, iMessageCache->InsertIsqL( aMessage, iKeyProperties ) ); |
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161 if( err == KErrAlreadyExists ) |
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162 { |
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163 err = KErrNone; |
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164 } |
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165 if( err != KErrNone ) |
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166 { |
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167 return; |
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168 } |
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169 |
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170 iShowOpInd = !NotAllowedToDisplayOperatorIndicator( aMessage ); |
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171 |
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172 TBool hasNetInfoChanged = HasNetworkInfoChanged( aMessage ); |
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173 if ( !hasNetInfoChanged ) |
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174 { |
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175 return; |
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176 } |
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177 __PRINT(__DBG_FORMAT("XAI: Show operator indicator %d, info changed %d"), iShowOpInd, hasNetInfoChanged ); |
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178 const TInt count( iObservers.Count() ); |
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179 |
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180 |
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181 for( TInt i( 0 ); i < count; i++ ) |
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182 { |
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183 //Observer might be NULL. When HandleNetworkInfoChange is called, it may |
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184 //cause deleting of the publisher which means that observer is removed from listener. |
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185 //This is the reason why observer pointers are replaced by NULL when it is removed |
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186 //from this listener. If the slot would be removed, it would easily cause index overflow |
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187 //or missing HandleNetworkInfoChange calls. |
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188 //For example lets assume that we have 5 observers, we are going in loop 3, so variable i |
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189 //has value 2. When third call is done, it would cause two publishers to be deleted and |
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190 //observers removed. Lets assume that these observers are in place 0 and 1. So now we have |
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191 //only 3 observers and the count is still 2. So we miss a call to a observers in index 3 and 4. |
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192 |
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193 if( iObservers[i] ) |
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194 { |
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195 iObservers[i]->HandleNetworkInfoChange( aMessage, iInfo, iShowOpInd ); |
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196 } |
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197 } |
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198 } |
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199 |
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200 |
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201 void CAiNetworkInfoListener::HandleNetworkError( const TNWOperation aOperation, TInt aErrorCode ) |
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202 { |
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203 __PRINT(__DBG_FORMAT("XAI: Error code %d"), aErrorCode ); |
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204 |
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205 TNWMessages errorCode = TNWMessages( KErrGeneral ); |
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206 |
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207 switch ( aOperation ) |
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208 { |
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209 case MNWMessageObserver::ENWGetNetworkProviderName: |
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210 iReceivedMessageFlags |= ENetworkProviderNameReceived; |
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211 iReceivedMessageFlags &= ~ENetworkProviderNameOk; |
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212 iInfo.iNPName.Zero(); |
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213 __PRINTS("XAI: NPN error received"); |
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214 break; |
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215 case MNWMessageObserver::ENWGetProgrammableOperatorName: |
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216 iReceivedMessageFlags |= EProgrammableOperatorInfoReceived; |
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217 iReceivedMessageFlags &= ~EProgrammableOperatorInfoReceivedOk; |
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218 iInfo.iOperatorNameInfo.iName.Zero(); |
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219 __PRINTS("XAI: PON error received"); |
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220 break; |
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221 case MNWMessageObserver::ENWGetServiceProviderName: |
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222 iReceivedMessageFlags |= EServiceProviderNameReceived; |
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223 iReceivedMessageFlags &= ~EServiceProviderNameOk; |
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224 iInfo.iServiceProviderNameDisplayReq = RMobilePhone::KDisplaySPNNotRequired; |
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225 iInfo.iSPName.Zero(); |
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226 iInfo.iPLMNField.Zero(); |
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227 __PRINTS("XAI: SPN error received"); |
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228 break; |
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229 case MNWMessageObserver::ENWNotifyNetworkRegistrationStatusChange: |
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230 if ( FeatureManager::FeatureSupported( KFeatureIdFfManualSelectionPopulatedPlmnList ) |
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231 && ( KErrGsmMMNetworkFailure == aErrorCode ) ) |
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232 { |
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233 errorCode = static_cast<TNWMessages>( aErrorCode ); |
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234 } |
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235 __PRINTS("XAI: ENWNotifyNetworkRegistrationStatusChange error received"); |
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236 |
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237 break; |
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238 default: |
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239 break; |
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240 } |
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241 |
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242 HandleNetworkMessage( errorCode ); |
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243 } |
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244 |
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245 TBool CAiNetworkInfoListener::NotAllowedToDisplayOperatorIndicator( const TNWMessages aMessage ) |
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246 { |
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247 // Service provider name must have been fetched. |
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248 // Network provider name must have been fetched. |
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249 // Registration status and network information must have been received. |
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250 // Operator name information must have been received. |
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251 // Device must be camped to a network. |
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252 // CS registration should be completed (only valid in AT&T NW) |
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253 |
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254 switch ( aMessage ) |
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255 { |
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256 case MNWMessageObserver::ENWMessageNetworkInfoChange: |
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257 iReceivedMessageFlags |= ENetworkInfoChangeReceived; |
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258 break; |
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259 case MNWMessageObserver::ENWMessageNetworkRegistrationStatusChange: |
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260 iReceivedMessageFlags |= ERegistrationStatusReceived; |
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261 break; |
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262 case MNWMessageObserver::ENWMessageNetworkProviderNameChange: |
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263 iReceivedMessageFlags |= |
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264 ( ENetworkProviderNameReceived + ENetworkProviderNameOk ); |
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265 break; |
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266 case MNWMessageObserver::ENWMessageServiceProviderNameChange: |
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267 iReceivedMessageFlags |= |
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268 ( EServiceProviderNameReceived + EServiceProviderNameOk ); |
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269 break; |
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270 case MNWMessageObserver::ENWMessageProgrammableOperatorInfoChange: |
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271 iReceivedMessageFlags |= |
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272 ( EProgrammableOperatorInfoReceived + |
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273 EProgrammableOperatorInfoReceivedOk ); |
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274 break; |
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275 case MNWMessageObserver::ENWMessageNetworkProviderNameUpdating: |
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276 iReceivedMessageFlags &= |
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277 ~( ENetworkProviderNameReceived + ENetworkProviderNameOk ); |
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278 break; |
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279 case MNWMessageObserver::ENWMessageServiceProviderNameUpdating: |
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280 iReceivedMessageFlags &= |
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281 ~( EServiceProviderNameReceived + EServiceProviderNameOk ); |
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282 break; |
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283 case MNWMessageObserver::ENWMessageProgrammableOperatorInfoUpdating: |
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284 iReceivedMessageFlags &= |
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285 ~( EProgrammableOperatorInfoReceived + |
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286 EProgrammableOperatorInfoReceivedOk ); |
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287 break; |
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288 case MNWMessageObserver::ENWMessageDynamicCapsChange: |
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289 TRAPD(fmerr, FeatureManager::InitializeLibL()); |
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290 if ( fmerr == KErrNone ) |
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291 { |
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292 if( FeatureManager::FeatureSupported( |
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293 KFeatureIdFfDisplayNetworkNameAfterCsRegistration )) |
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294 { |
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295 // CS flag is EFalse, alpha tag should not be shown. |
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296 if ( !( RPacketService::KCapsRxCSCall & |
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297 iInfo.iDynamicCapsFlags ) ) |
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298 { |
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299 __PRINTS("XAI: CS registration failed"); |
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300 iReceivedMessageFlags |= ECSRegistrationNotOk; |
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301 } |
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302 else |
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303 { |
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304 __PRINTS("XAI: CS registration ok"); |
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305 iReceivedMessageFlags &= ~ECSRegistrationNotOk; |
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306 } |
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307 } |
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308 FeatureManager::UnInitializeLib(); |
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309 } |
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310 break; |
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311 default: |
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312 break; |
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313 } |
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314 |
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315 TBool serviceProviderNameFetched( EServiceProviderNameReceived & iReceivedMessageFlags ); |
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316 TBool networkProviderNameFetched( ENetworkProviderNameReceived & iReceivedMessageFlags ); |
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317 TBool registrationStatusReceived( ERegistrationStatusReceived & iReceivedMessageFlags ); |
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318 TBool networkInformationReceived( ENetworkInfoChangeReceived & iReceivedMessageFlags ); |
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319 TBool operatorNameInformationReceived( |
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320 EProgrammableOperatorInfoReceived & iReceivedMessageFlags ); |
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321 TBool currentNetworkOk( |
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322 ( ENetworkInfoChangeReceived & iReceivedMessageFlags ) && |
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323 ( ERegistrationStatusReceived & iReceivedMessageFlags ) && |
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324 ( iInfo.iStatus == ENWStatusCurrent ) ); |
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325 TBool csAlphaFlag( ECSRegistrationNotOk & iReceivedMessageFlags ); |
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326 |
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327 return |
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328 !serviceProviderNameFetched || |
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329 !networkProviderNameFetched || |
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330 !( registrationStatusReceived && networkInformationReceived |
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331 && operatorNameInformationReceived ) || |
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332 !currentNetworkOk || csAlphaFlag; |
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333 } |
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334 |
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335 |
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336 TBool CAiNetworkInfoListener::HasNetworkInfoChanged( const TNWMessages aMessage ) |
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337 { |
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338 TBool result = ETrue; |
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339 |
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340 // pass through |
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341 if ( aMessage == MNWMessageObserver::ENWMessageCurrentHomeZoneMessage || |
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342 aMessage == MNWMessageObserver::ENWMessageNetworkConnectionFailure || |
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343 aMessage == MNWMessageObserver::ENWMessageCurrentCellInfoMessage || |
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344 aMessage == static_cast<TNWMessages>( KErrGsmMMNetworkFailure ) |
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345 ) |
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346 { |
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347 return result; |
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348 } |
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349 |
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350 result = ( iReceivedMessageFlags != iOldReceivedMessageFlags ); |
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351 |
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352 if ( !result ) |
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353 { |
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354 // Check if contents of iInfo has changed. Most probable to the |
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355 // beginning of the expression. |
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356 result = |
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357 iInfo.iRegistrationStatus != iOldInfo.iRegistrationStatus || |
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358 iInfo.iStatus != iOldInfo.iStatus || |
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359 iInfo.iCountryCode != iOldInfo.iCountryCode || |
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360 iInfo.iNetworkId != iOldInfo.iNetworkId || |
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361 iInfo.iOperatorNameInfo.iType != |
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362 iOldInfo.iOperatorNameInfo.iType || |
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363 iInfo.iOperatorNameInfo.iName != |
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364 iOldInfo.iOperatorNameInfo.iName || |
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365 iInfo.iDisplayTag != iOldInfo.iDisplayTag || |
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366 iInfo.iShortName != iOldInfo.iShortName || |
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367 iInfo.iLongName != iOldInfo.iLongName || |
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368 iInfo.iSPName != iOldInfo.iSPName || |
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369 iInfo.iServiceProviderNameDisplayReq != |
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370 iOldInfo.iServiceProviderNameDisplayReq || |
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371 iInfo.iNPName != iOldInfo.iNPName || |
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372 iInfo.iPLMNField != iOldInfo.iPLMNField; |
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373 TRAPD(fmerr, FeatureManager::InitializeLibL()); |
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374 if ( fmerr == KErrNone ) |
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375 { |
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376 if( FeatureManager::FeatureSupported( |
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377 KFeatureIdFfDisplayNetworkNameAfterCsRegistration )) |
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378 { |
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379 result = result || |
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380 iInfo.iDynamicCapsFlags != iOldInfo.iDynamicCapsFlags; |
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381 } |
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382 FeatureManager::UnInitializeLib(); |
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383 } |
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384 } |
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385 |
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386 iOldReceivedMessageFlags = iReceivedMessageFlags; |
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387 iOldInfo = iInfo; |
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388 |
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389 return result; |
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390 } |
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391 |