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1 /* |
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2 * Copyright (c) 2002 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 the License "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: class implementation |
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15 * |
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16 */ |
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17 |
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18 #include <AccessoryConnection.h> |
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19 |
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20 #include "sysinfoservice.h" |
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21 #include "sysaccessoryrequest.h" |
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22 #include "entitykeys.h" |
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23 #include "sysrequest.h" |
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24 |
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25 using namespace SysInfo; |
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26 |
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27 // -------------------------------------------------------------------- |
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28 // CAccessory::CAccessory() |
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29 // C++ default constructor. |
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30 // -------------------------------------------------------------------- |
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31 // |
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32 CAccessory::CAccessory( TSysRequest::TRequestType aReqType, TInt32 aTransID, |
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33 ISystemObserver* aObsrvr ): CActiveRequest( |
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34 aReqType, aTransID, aObsrvr), iAccCountOld(0), |
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35 iAccState(CAccessoryInfo::EDisconnected) |
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36 { |
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37 } |
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38 |
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39 // -------------------------------------------------------------------- |
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40 // CAccessory::~CAccessory() |
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41 // destructor. |
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42 // -------------------------------------------------------------------- |
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43 // |
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44 CAccessory::~CAccessory() |
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45 { |
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46 Cancel(); |
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47 iAccessoryConnection.CloseSubSession(); |
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48 iAccSrv.Disconnect(); |
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49 } |
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50 |
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51 // -------------------------------------------------------------------- |
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52 // CAccessory::NewL() |
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53 // Two-phased constructor, returns instance of this class. |
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54 // -------------------------------------------------------------------- |
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55 // |
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56 CAccessory* CAccessory::NewL(const TSysRequest& aRequest) |
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57 { |
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58 CAccessory* self; |
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59 self = new (ELeave) CAccessory(aRequest.RequestType(), |
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60 aRequest.TransactionID(), aRequest.Observer()); |
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61 |
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62 CleanupStack::PushL(self); |
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63 self->ConstructL(); |
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64 CleanupStack::Pop(self); |
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65 return self; |
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66 } |
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67 |
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68 // -------------------------------------------------------------------- |
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69 // CAccessory::ConstructL() |
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70 // 2nd Phase constructor to allocate required resources for this obj. |
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71 // -------------------------------------------------------------------- |
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72 // |
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73 void CAccessory::ConstructL() |
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74 { |
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75 //Supportes Only Notifications. |
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76 if( TSysRequest::ENotification != RequestType()) |
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77 User::Leave(KErrNotSupported); |
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78 |
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79 User::LeaveIfError(iAccSrv.Connect()); |
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80 TInt err = iAccessoryConnection.CreateSubSession(iAccSrv); |
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81 if( err ) |
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82 { |
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83 iAccSrv.Disconnect(); |
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84 User::Leave(err); |
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85 } |
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86 } |
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87 |
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88 // -------------------------------------------------------------------- |
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89 // CAccessory::Request() |
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90 // Issues accesssory request. |
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91 // -------------------------------------------------------------------- |
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92 // |
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93 TInt CAccessory::Request() |
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94 { |
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95 if(!iAccCountOld) |
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96 { |
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97 // get all connected accessories into iGenIdArrayOld. |
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98 iAccessoryConnection.GetAccessoryConnectionStatus(iGenIdArrayOld); |
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99 //Store Connection Count. |
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100 iAccCountOld = iGenIdArrayOld.Count(); |
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101 } |
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102 |
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103 //Issue request. |
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104 if( !IsActive() ) |
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105 { |
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106 iAccessoryConnection.NotifyAccessoryConnectionStatusChanged(iStatus, |
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107 iGenIdArrayCur); |
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108 SetActive (); |
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109 } |
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110 return KErrNone; |
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111 } |
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112 |
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113 // -------------------------------------------------------------------- |
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114 // CAccessory::RunL() |
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115 // Gets called in event of request completion or error situation. |
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116 // -------------------------------------------------------------------- |
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117 // |
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118 void CAccessory::RunL() |
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119 { |
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120 TSysRequest::TRequestType ReqType = RequestType(); |
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121 TInt32 transId = this->TransactionID(); |
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122 |
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123 // get accessory count. |
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124 iAccCountCur = iGenIdArrayCur.Count(); |
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125 iAccCountOld = iGenIdArrayOld.Count(); |
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126 |
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127 // Check if it a was a connect or a disconnect |
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128 if( iAccCountCur > iAccCountOld ) |
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129 iAccState = CAccessoryInfo::EConnected; |
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130 else |
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131 iAccState = CAccessoryInfo::EDisconnected; |
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132 |
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133 TInt error(iStatus.Int()); |
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134 |
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135 if(error == KErrNone) |
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136 { |
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137 CAccessoryInfo* accInfo = NULL; |
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138 //newly connected accessory will be at index '0'. |
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139 if(iAccState == CAccessoryInfo::EConnected) |
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140 { |
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141 TAccPolGenericID ConnectedID; |
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142 ConnectedID = iGenIdArrayCur.GetGenericIDL(0); |
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143 accInfo = CAccessoryInfo::NewL(ConnectedID,iAccState); |
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144 } |
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145 else |
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146 { |
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147 TAccPolGenericID DisConnectedID; |
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148 //get DisConnected accessory ID. |
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149 DisConnectedAccessoryL(DisConnectedID); |
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150 accInfo = CAccessoryInfo::NewL(DisConnectedID,iAccState); |
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151 } |
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152 |
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153 CleanupStack::PushL(accInfo); |
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154 TRAP_IGNORE(SystemObserver()->HandleResponseL(KGeneral, KAccessoryStatus, |
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155 accInfo, transId, RequestType(), error)); |
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156 CleanupStack::Pop(accInfo); |
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157 //Re-Issue request |
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158 Request(); |
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159 } |
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160 else |
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161 { |
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162 TRAP_IGNORE(SystemObserver()->HandleResponseL(KGeneral, KAccessoryStatus, |
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163 NULL, transId, RequestType(), error)); |
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164 } |
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165 //copy current list to old list. |
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166 iGenIdArrayOld = iGenIdArrayCur; |
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167 } |
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168 |
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169 // -------------------------------------------------------------------- |
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170 // CAccessory::DoCancel() |
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171 // Gets called in event of request completion or error situation. |
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172 // -------------------------------------------------------------------- |
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173 // |
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174 void CAccessory::DoCancel() |
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175 { |
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176 if(IsActive()) |
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177 iAccessoryConnection.CancelNotifyAccessoryConnectionStatusChanged(); |
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178 } |
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179 |
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180 // -------------------------------------------------------------------- |
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181 // CAccessory::DisConnectedAccessoryL() |
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182 // retruns disconnected accessory GenericID. |
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183 // -------------------------------------------------------------------- |
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184 // |
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185 void CAccessory::DisConnectedAccessoryL(TAccPolGenericID& aGenId) |
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186 { |
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187 for(TInt i=0; i<iAccCountOld; i++) |
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188 { |
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189 TAccPolGenericID DisConnected; |
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190 //Take a GenericID in old list and search for it in cur list. |
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191 //if present, continue with next. |
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192 DisConnected = iGenIdArrayOld.GetGenericIDL(i); |
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193 aGenId= DisConnected; |
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194 |
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195 for(TInt j=0; j<iAccCountCur;j++) |
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196 { |
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197 //stop searching when a missing entry in old list is found. |
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198 if( DisConnected.UniqueID() != |
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199 (iGenIdArrayCur.GetGenericIDL(j)).UniqueID() ) |
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200 { |
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201 return; |
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202 } |
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203 } |
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204 } |
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205 } |
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206 |
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207 // End of file. |