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1 /* |
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2 * Copyright (c) 2008 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: The API supports attributes not present in MCS from SAT Api |
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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 "mcschildrenscanner.h" |
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20 #include "menueng.h" |
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21 #include "menusrveng.h" |
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22 #include "menuengobject.h" |
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23 |
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24 // ============================ MEMBER FUNCTIONS ============================= |
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25 |
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26 // --------------------------------------------------------------------------- |
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27 // Creates an instance of CMcsChildrenScanner implementation |
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28 // --------------------------------------------------------------------------- |
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29 // |
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30 CMcsChildrenScanner* CMcsChildrenScanner::NewL( |
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31 MMcsChildrenScanner& aObserver, |
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32 CMenuSrvEng& aSrvEng) |
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33 { |
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34 CMcsChildrenScanner* self = new (ELeave) CMcsChildrenScanner( |
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35 aObserver, aSrvEng ); |
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36 CleanupStack::PushL( self ); |
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37 self->ConstructL(); |
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38 CleanupStack::Pop( self ); |
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39 |
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40 return self; |
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41 } |
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42 |
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43 |
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44 // --------------------------------------------------------------------------- |
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45 // Destructor |
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46 // --------------------------------------------------------------------------- |
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47 // |
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48 CMcsChildrenScanner::~CMcsChildrenScanner() |
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49 { |
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50 Cancel(); |
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51 iSrvEng.Engine().DequeueOperation( *this ); |
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52 iIdBuff.Close(); |
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53 } |
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54 |
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55 // ----------------------------------------------------------------------------- |
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56 // CMcsChildrenScanner::CMcsChildrenScanner |
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57 // C++ default constructor |
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58 // ----------------------------------------------------------------------------- |
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59 // |
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60 CMcsChildrenScanner::CMcsChildrenScanner( |
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61 MMcsChildrenScanner& aObserver, |
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62 CMenuSrvEng& aSrvEng ): |
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63 CActive( EPriorityNormal ), iObserver( aObserver ), |
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64 iSrvEng(aSrvEng) |
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65 { |
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66 CActiveScheduler::Add( this ); |
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67 iOpStatus = EFalse; |
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68 } |
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69 |
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70 // ----------------------------------------------------------------------------- |
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71 // CMcsChildrenScanner::ConstructL |
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72 // S2nd phase constructor. |
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73 // ----------------------------------------------------------------------------- |
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74 // |
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75 void CMcsChildrenScanner::ConstructL() |
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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 // CMcsChildrenScanner::DoCancel |
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81 // --------------------------------------------------------------------------- |
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82 // |
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83 void CMcsChildrenScanner::DoCancel() |
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84 { |
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85 } |
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86 |
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87 // --------------------------------------------------------------------------- |
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88 // CMcsChildrenScanner::RunL |
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89 // --------------------------------------------------------------------------- |
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90 // |
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91 void CMcsChildrenScanner::RunL() |
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92 { |
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93 User::LeaveIfError( iStatus.Int() ); // Handle errors in RunL. |
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94 iSrvEng.Engine().QueueOperationL( *this ); |
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95 } |
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96 |
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97 // --------------------------------------------------------- |
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98 // CMcsChildrenScanner::RunError() |
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99 // --------------------------------------------------------- |
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100 // |
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101 TInt CMcsChildrenScanner::RunError( TInt /*aError*/ ) |
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102 { |
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103 // Ignore the error (what else could we do?). |
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104 return KErrNone; |
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105 } |
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106 |
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107 // --------------------------------------------------------- |
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108 // CMenuSrvAppScanner::RunMenuEngOperationL |
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109 // --------------------------------------------------------- |
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110 // |
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111 void CMcsChildrenScanner::RunMenuEngOperationL() |
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112 { |
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113 ScanFolderL(); |
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114 iOpStatus = EFalse; |
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115 } |
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116 |
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117 // --------------------------------------------------------- |
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118 // CMenuSrvAppScanner::CompletedMenuEngOperation |
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119 // --------------------------------------------------------- |
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120 // |
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121 void CMcsChildrenScanner::CompletedMenuEngOperation( TInt /*aErr*/ ) |
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122 { |
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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 // CMcsChildrenScanner::ScanFolderL |
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128 // --------------------------------------------------------- |
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129 // |
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130 void CMcsChildrenScanner::ScanFolderL() |
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131 { |
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132 |
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133 while ( iIdBuff.Count( ) != 0 ) |
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134 { |
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135 TInt currentFolder = iIdBuff[0]; |
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136 |
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137 // Get current children_count |
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138 TUint32 newCount = iSrvEng.GetChildrenCountL(currentFolder); |
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139 |
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140 // Chceck if children_count has changed |
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141 // if children_count wasn't in cash it will be added |
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142 // when GetAttributeL is executed |
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143 TBool attrExists; |
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144 RBuf attrVal; |
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145 attrVal.CleanupClosePushL(); |
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146 attrVal.CreateL(KMenuMaxAttrValueLen); |
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147 |
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148 iSrvEng.GetAttributeL(currentFolder, KChildrenCount, attrExists, attrVal); |
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149 |
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150 if (attrExists) |
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151 { |
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152 TLex lex(attrVal); |
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153 TUint oldCount; |
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154 TInt err = lex.Val(oldCount); |
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155 if (err == KErrNone) |
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156 { |
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157 iObserver.HandleChildrenEvent(currentFolder, oldCount, newCount); |
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158 } |
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159 } |
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160 |
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161 CleanupStack::PopAndDestroy( &attrVal ); |
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162 RemoveId(currentFolder); |
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163 } |
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164 iOpStatus = EFalse; |
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165 } |
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166 |
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167 |
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168 // ----------------------------------------------------------------------------- |
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169 // |
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170 // ----------------------------------------------------------------------------- |
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171 // |
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172 void CMcsChildrenScanner::Scan(TInt aId) |
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173 { |
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174 AddId(aId); |
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175 if ( !IsActive() && !iOpStatus ) |
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176 { |
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177 iOpStatus = ETrue; |
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178 TRequestStatus* ownStatus = &iStatus; |
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179 *ownStatus = KRequestPending; |
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180 SetActive(); |
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181 User::RequestComplete( ownStatus, KErrNone ); |
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182 } |
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183 } |
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184 |
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185 |
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186 void CMcsChildrenScanner::AddId(TInt aId) |
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187 { |
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188 if (iIdBuff.Find(aId) == KErrNotFound) |
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189 { |
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190 iIdBuff.Append(aId); |
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191 } |
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192 } |
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193 |
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194 void CMcsChildrenScanner::RemoveId(TInt aId) |
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195 { |
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196 TInt index = iIdBuff.Find(aId); |
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197 if (index != KErrNotFound) |
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198 { |
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199 iIdBuff.Remove(index); |
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200 } |
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201 } |
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202 // End of File |