1 /* |
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2 * Copyright (c) 2003 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: This module contains the implementation of CCbsTopicCollection class |
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15 * member functions. |
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16 * |
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17 * |
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18 */ |
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19 |
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20 |
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21 // INCLUDE FILES |
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22 |
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23 #include "CbsCommon.h" |
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24 #include "CCbsSession.h" |
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25 #include "CCbsTopicCollection.h" |
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26 #include "CCbsDbImpTopicCollection.h" |
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27 #include "CCbsDbImpTopicList.h" |
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28 #include "CbsServerConstants.h" |
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29 #include "CCbsServer.h" |
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30 #include "CbsLogger.h" |
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31 |
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32 // ================= MEMBER FUNCTIONS ======================= |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // CCbsTopicCollection::CCbsTopicCollection |
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36 // C++ default constructor can NOT contain any code, that |
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37 // might leave. |
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38 // ----------------------------------------------------------------------------- |
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39 // |
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40 CCbsTopicCollection::CCbsTopicCollection( |
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41 CCbsSession& aSession, |
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42 CCbsDbImpTopicCollection& aCollection, |
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43 CCbsDbImpTopicList& aList ) |
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44 : CCbsObject( aSession ), |
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45 iCollection( aCollection ), |
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46 iTopicList ( aList ) |
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47 { |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CCbsTopicCollection::ConstructL |
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52 // Symbian 2nd phase constructor can leave. |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 void CCbsTopicCollection::ConstructL() |
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56 { |
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57 iCollection.AddObserverL( this ); |
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58 } |
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59 |
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60 // ----------------------------------------------------------------------------- |
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61 // CCbsTopicCollection::NewL |
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62 // Two-phased constructor. |
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63 // ----------------------------------------------------------------------------- |
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64 // |
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65 CCbsTopicCollection* CCbsTopicCollection::NewL( |
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66 CCbsSession& aSession, |
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67 CCbsDbImpTopicCollection& aCollection, |
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68 CCbsDbImpTopicList& aList ) |
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69 { |
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70 // Normal two phase construction. |
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71 CCbsTopicCollection* self = |
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72 new ( ELeave ) CCbsTopicCollection( aSession, aCollection, aList ); |
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73 CleanupStack::PushL( self ); |
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74 self->ConstructL(); |
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75 CleanupStack::Pop(); |
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76 return self; |
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77 } |
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78 |
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79 // Destructor |
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80 CCbsTopicCollection::~CCbsTopicCollection() |
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81 { |
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82 CBSLOGSTRING("CBSSERVER: >>> CCbsTopicCollection::~CCbsTopicCollection()"); |
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83 // Remove from the observers. |
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84 iCollection.RemoveObserver( this ); |
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85 CBSLOGSTRING("CBSSERVER: <<< CCbsTopicCollection::~CCbsTopicCollection()"); |
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86 } |
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87 |
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88 // ----------------------------------------------------------------------------- |
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89 // CCbsTopicCollection::HandleRequestsL |
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90 // Passes the requests to proper functions. |
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91 // (other items were commented in a header). |
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92 // ----------------------------------------------------------------------------- |
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93 // |
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94 TBool CCbsTopicCollection::HandleRequestsL( |
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95 const RMessage2& aMessage ) |
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96 { |
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97 CBSLOGSTRING("CBSSERVER: >>> CCbsTopicCollection::HandleRequestsL()"); |
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98 |
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99 TBool requestHandled( ETrue ); |
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100 |
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101 // Handle the requests. |
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102 switch ( aMessage.Function() ) |
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103 { |
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104 case ECbsCloseTopicCollectionSubsession: |
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105 CloseCollection(); |
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106 aMessage.Complete( KErrNone ); |
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107 break; |
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108 |
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109 case ECbsGetTopicInfoCount: |
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110 GetTopicCountL(); |
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111 break; |
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112 |
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113 case ECbsGetTopicInfo: |
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114 GetTopicInfoL(); |
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115 break; |
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116 |
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117 case ECbsTopicInList: |
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118 TopicInListL(); |
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119 break; |
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120 |
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121 case ECbsNotifyOnChange: |
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122 NotifyOnChange(); |
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123 break; |
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124 |
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125 case ECbsNotifyOnChangeCancel: |
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126 NotifyOnChangeCancel(); |
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127 break; |
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128 |
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129 default: |
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130 requestHandled = EFalse; |
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131 break; |
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132 } |
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133 |
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134 CBSLOGSTRING2("CBSSERVER: <<< CCbsTopicCollection::HandleRequestsL(), returning requestHandled: %d", requestHandled ); |
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135 return requestHandled; |
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136 } |
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137 |
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138 // ----------------------------------------------------------------------------- |
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139 // CCbsTopicCollection::TopicCollectionContentsChangedInd |
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140 // Called whenever topic collection contents are changed |
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141 // (other items were commented in a header). |
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142 // ----------------------------------------------------------------------------- |
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143 // |
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144 void CCbsTopicCollection::TopicCollectionContentsChangedInd() |
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145 { |
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146 // Notify if necessary. |
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147 Notify(); |
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148 } |
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149 |
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150 // ----------------------------------------------------------------------------- |
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151 // CCbsTopicCollection::CloseCollection |
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152 // Closes the subsession. |
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153 // (other items were commented in a header). |
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154 // ----------------------------------------------------------------------------- |
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155 // |
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156 void CCbsTopicCollection::CloseCollection() |
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157 { |
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158 // Removes the object. |
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159 Session().Server().DeleteObjectByHandle( Message().Int3() ); |
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160 } |
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161 |
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162 // ----------------------------------------------------------------------------- |
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163 // CCbsTopicCollection::GetTopicCountL |
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164 // Writes the number of topics in the topic collection to the client. |
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165 // (other items were commented in a header). |
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166 // ----------------------------------------------------------------------------- |
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167 // |
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168 void CCbsTopicCollection::GetTopicCountL() |
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169 { |
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170 TInt count; |
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171 iCollection.GetTopicIdentityCount( count ); |
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172 // Write the count to the client side. |
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173 TPckgBuf< TInt > pckg( count ); |
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174 Message().WriteL( 0, pckg ); |
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175 |
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176 // Complete the request. |
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177 Message().Complete( KErrNone ); |
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178 } |
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179 |
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180 // ----------------------------------------------------------------------------- |
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181 // CCbsTopicCollection::GetTopicInfoL |
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182 // Writes the topic identity requested by the client to the client side. |
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183 // (other items were commented in a header). |
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184 // ----------------------------------------------------------------------------- |
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185 // |
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186 void CCbsTopicCollection::GetTopicInfoL() |
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187 { |
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188 // Get the index from the client |
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189 TInt index( 0 ); |
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190 index = Message().Int0(); |
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191 |
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192 TCbsTopicInfo info; |
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193 iCollection.GetTopicIdentityL( index, info ); |
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194 |
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195 // Write the count to the client side. |
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196 TPckgBuf< TCbsTopicInfo > pckg( info ); |
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197 Message().WriteL( 1, pckg ); |
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198 |
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199 // Complete the request. |
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200 Message().Complete( KErrNone ); |
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201 |
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202 } |
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203 |
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204 // ----------------------------------------------------------------------------- |
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205 // CCbsTopicCollection::TopicInListL |
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206 // Writes a truth value to the client determining the existence |
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207 // of a topic in the current topic list. |
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208 // (other items were commented in a header). |
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209 // ----------------------------------------------------------------------------- |
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210 // |
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211 void CCbsTopicCollection::TopicInListL() |
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212 { |
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213 // Get the topic index from the client |
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214 TInt index( 0 ); |
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215 index = Message().Int0(); |
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216 |
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217 // Check if this topic exists in the topic list. |
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218 TCbsTopicInfo topicInfo; |
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219 iCollection.GetTopicIdentityL( index, topicInfo ); |
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220 |
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221 TBool inList( iTopicList.TopicIndexInList( topicInfo.iNumber ) >= 0 ); |
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222 |
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223 // Write the result back to the client. |
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224 TPckgBuf< TBool > pckg( inList ); |
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225 Message().WriteL( 1, pckg ); |
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226 |
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227 // Complete the request. |
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228 Message().Complete( KErrNone ); |
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229 |
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230 } |
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231 |
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232 // ----------------------------------------------------------------------------- |
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233 // CCbsTopicCollection::NotifyOnChange |
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234 // Sets up a notification so that the client will be notified when the |
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235 // collecton is changed. |
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236 // (other items were commented in a header). |
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237 // ----------------------------------------------------------------------------- |
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238 // |
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239 void CCbsTopicCollection::NotifyOnChange() |
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240 { |
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241 // Just create a pending request. |
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242 if ( iIsMessage ) |
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243 { |
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244 NotifyOnChangeCancel(); |
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245 } |
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246 |
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247 iIsMessage = ETrue; |
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248 iMessage = Message(); |
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249 } |
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250 |
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251 // ----------------------------------------------------------------------------- |
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252 // CCbsTopicCollection::NotifyOnChangeCancel |
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253 // Cancels the pending request. |
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254 // (other items were commented in a header). |
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255 // ----------------------------------------------------------------------------- |
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256 // |
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257 void CCbsTopicCollection::NotifyOnChangeCancel() |
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258 { |
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259 // Cancel the notification. |
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260 if ( iIsMessage ) |
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261 { |
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262 iMessage.Complete( KErrCancel ); |
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263 } |
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264 |
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265 iIsMessage = EFalse; |
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266 Message().Complete( KErrNone ); |
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267 } |
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268 |
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269 // ----------------------------------------------------------------------------- |
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270 // CCbsTopicCollection::Notify |
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271 // Notifies the client. |
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272 // (other items were commented in a header). |
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273 // ----------------------------------------------------------------------------- |
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274 // |
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275 void CCbsTopicCollection::Notify() |
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276 { |
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277 // Notify, if necessary |
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278 if ( iIsMessage ) |
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279 { |
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280 iMessage.Complete( KErrNone ); |
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281 } |
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282 } |
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283 |
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284 // ================= OTHER EXPORTED FUNCTIONS ============== |
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285 |
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286 // End of File |
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