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1 /* |
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2 * Copyright (c) 2009 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: |
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15 * |
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16 */ |
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17 #include <barsc2.h> |
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18 #include <barsread2.h> |
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19 #include "CdlEcomReg.h" |
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20 |
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21 void CCdlDllsWatcherBase::NewL(CCdlDllsWatcherBase*& iWatcher, RFs& aFs, MCdlDllsObserver* aObserver) |
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22 { |
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23 CCdlEcomWatcher* self = new(ELeave) CCdlEcomWatcher(aFs, aObserver); |
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24 iWatcher = self; |
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25 self->ConstructL(); |
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26 } |
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27 |
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28 CCdlRefCollection* CCdlDllsWatcherBase::FileContentsLC(const TDesC& aFileName) |
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29 { |
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30 CCdlRefs* refs = CCdlRefs::NewLC(); |
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31 |
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32 TParsePtrC parse(aFileName); |
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33 TPtrC name(parse.Name()); |
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34 TPtrC drive(parse.Drive()); |
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35 |
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36 _LIT(KRes, "%S\\resource\\cdl\\%S_cdl_detail.rsc"); |
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37 TBuf<64> fileName; |
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38 fileName.Format(KRes, &drive, &name); |
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39 |
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40 CResourceFile* resFile = CResourceFile::NewLC(iFs, fileName, 0, 0); |
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41 RResourceReader reader; |
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42 reader.OpenLC(resFile, 1); |
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43 |
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44 TInt count = reader.ReadInt16L(); |
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45 for (TInt ii=0; ii<count; ii++) |
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46 { |
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47 TCdlRef ref; |
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48 ref.iName = &aFileName; |
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49 ref.iUid = TUid::Uid(reader.ReadInt32L()); |
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50 ref.iId = reader.ReadInt32L(); |
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51 refs->AppendL(ref); |
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52 } |
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53 |
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54 CleanupStack::PopAndDestroy(2); // reader, resFile |
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55 |
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56 return refs; |
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57 } |
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58 |
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59 |
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60 CCdlEcomWatcher::CCdlEcomWatcher(RFs& aFs, MCdlDllsObserver* aObserver) |
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61 : CCdlDllsWatcherBase(aFs), iObserver(aObserver) |
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62 { |
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63 } |
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64 |
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65 CCdlEcomWatcher::~CCdlEcomWatcher() |
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66 { |
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67 Cancel(); |
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68 if (iImplArray) |
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69 iImplArray->ResetAndDestroy(); |
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70 delete iImplArray; |
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71 if (iEcom) |
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72 { |
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73 iEcom->Close(); |
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74 REComSession::FinalClose(); |
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75 } |
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76 } |
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77 |
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78 void CCdlEcomWatcher::ConstructL() |
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79 { |
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80 iImplArray = new(ELeave) RImplInfoPtrArray; |
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81 iEcom = &REComSession::OpenL(); |
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82 TRAP_IGNORE(GetListL()); |
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83 Queue(); |
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84 } |
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85 |
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86 void CCdlEcomWatcher::DoCancel() |
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87 { |
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88 iEcom->CancelNotifyOnChange(iStatus); |
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89 } |
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90 |
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91 void CCdlEcomWatcher::RunL() |
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92 { |
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93 TRAP_IGNORE(GetListL()); |
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94 Queue(); |
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95 } |
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96 |
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97 void CleanImplArray(TAny* aArray) |
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98 { |
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99 RImplInfoPtrArray* array = static_cast<RImplInfoPtrArray*>(aArray); |
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100 array->ResetAndDestroy(); |
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101 delete array; |
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102 } |
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103 |
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104 TInt ImplUidLessThan(const CImplementationInformation& aLhs, const CImplementationInformation& aRhs) |
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105 { |
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106 return aLhs.ImplementationUid().iUid - aRhs.ImplementationUid().iUid; |
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107 } |
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108 |
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109 void CCdlEcomWatcher::GetListL() |
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110 { |
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111 RImplInfoPtrArray* implArray = new(ELeave) RImplInfoPtrArray; |
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112 CleanupStack::PushL(TCleanupItem(CleanImplArray, implArray)); |
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113 REComSession::ListImplementationsL(TUid::Uid(0x101f8243), *implArray); |
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114 |
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115 implArray->Sort(&ImplUidLessThan); |
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116 |
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117 HandleNewListL(*implArray); |
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118 |
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119 iImplArray->ResetAndDestroy(); |
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120 delete iImplArray; |
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121 iImplArray = implArray; |
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122 |
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123 CleanupStack::Pop(); // implArray |
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124 } |
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125 |
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126 void CCdlEcomWatcher::Queue() |
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127 { |
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128 iEcom->NotifyOnChange(iStatus); |
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129 SetActive(); |
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130 } |
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131 |
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132 void CCdlEcomWatcher::HandleNewListL(RImplInfoPtrArray& aImplArray) |
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133 { |
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134 RImplInfoPtrArray& implArray = *iImplArray; |
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135 TInt ixNew = 0; |
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136 TInt ixCur = 0; |
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137 TInt countNew = aImplArray.Count(); |
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138 TInt countCur = implArray.Count(); |
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139 while (ixNew < countNew || ixCur < countCur) |
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140 { |
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141 if (ixCur == countCur) // at end of current list, any UIDs left in new list should be added |
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142 { |
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143 AddNewToObserverL(*aImplArray[ixNew]); |
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144 ixNew++; |
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145 } |
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146 else if (ixNew == countNew) // at end of new list, any UIDs left in current list should be removed |
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147 { |
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148 RemoveCurrentFromObserverL(*implArray[ixCur]); |
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149 ixCur++; |
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150 } |
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151 else if (implArray[ixCur]->ImplementationUid() == aImplArray[ixNew]->ImplementationUid()) // UIDs are the same, skip to the next one |
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152 { |
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153 ixNew++; |
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154 ixCur++; |
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155 } |
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156 else if (implArray[ixCur]->ImplementationUid().iUid < aImplArray[ixNew]->ImplementationUid().iUid) // current UID does not appear in new list, remove it |
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157 { |
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158 RemoveCurrentFromObserverL(*implArray[ixCur]); |
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159 ixCur++; |
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160 } |
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161 else // new UID does not appear in current list, add it |
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162 { |
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163 AddNewToObserverL(*aImplArray[ixNew]); |
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164 ixNew++; |
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165 } |
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166 } |
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167 |
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168 if (iTellingObserver) |
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169 { |
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170 iTellingObserver = EFalse; |
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171 iObserver->McdoChangesCompleteL(); |
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172 } |
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173 } |
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174 |
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175 void CCdlEcomWatcher::AddNewToObserverL(CImplementationInformation& aImpl) |
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176 { |
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177 TFileName fileName; |
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178 ImplFileName(aImpl, fileName); |
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179 StartTellingObserverIfNecessaryL(); |
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180 TRAP_IGNORE(iObserver->McdoFileAddedL(fileName)); |
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181 } |
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182 |
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183 void CCdlEcomWatcher::RemoveCurrentFromObserverL(CImplementationInformation& aImpl) |
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184 { |
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185 TFileName fileName; |
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186 ImplFileName(aImpl, fileName); |
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187 StartTellingObserverIfNecessaryL(); |
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188 TRAP_IGNORE(iObserver->McdoFileRemovedL(fileName)); |
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189 } |
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190 |
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191 void CCdlEcomWatcher::ImplFileName(CImplementationInformation& aImpl, TFileName& aFileName) |
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192 { |
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193 TDriveName drive = aImpl.Drive().Name(); |
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194 aFileName.Format(_L("%S%08x.dll"), &drive, aImpl.ImplementationUid()); |
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195 } |
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196 |
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197 void CCdlEcomWatcher::StartTellingObserverIfNecessaryL() |
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198 { |
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199 if (!iTellingObserver) |
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200 iObserver->McdoPrepareForChangesL(); |
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201 iTellingObserver = ETrue; |
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202 } |
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203 |
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204 TInt ImplArrayUidSearchPred(const TUid* aUid, const CImplementationInformation& aImpl) |
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205 { |
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206 return aUid->iUid - aImpl.ImplementationUid().iUid; |
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207 } |
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208 |
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209 TInt CCdlEcomWatcher::FindPlugin(const TDesC& aFileName) const |
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210 { |
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211 // get the implementation UID from the file name |
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212 TParsePtrC parse(aFileName); |
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213 TPtrC name(parse.Name()); |
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214 TLex lexer(name); |
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215 TUint32 uidVal; |
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216 TInt r = lexer.Val(uidVal, EHex); |
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217 if (r!=KErrNone) |
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218 return r; |
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219 |
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220 // Search for an implementation with the UID in the implementation array |
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221 TUid uid = { uidVal }; |
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222 return iImplArray->FindInOrder(uid, &ImplArrayUidSearchPred); |
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223 } |
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224 |
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225 TInt CCdlEcomWatcher::IsPluginInRom(const TDesC& aFileName, TBool& aIsInRom) const |
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226 { |
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227 TInt index = FindPlugin(aFileName); |
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228 if (index<=KErrNotFound) |
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229 return index; |
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230 |
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231 // Is this implementation ROM based or not? |
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232 aIsInRom = (*iImplArray)[index]->RomBased(); |
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233 |
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234 return KErrNone; |
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235 } |
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236 |
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237 TInt CCdlEcomWatcher::PluginDrive(const TDesC& aFileName, TDriveUnit& aDrive) const |
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238 { |
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239 TInt index = FindPlugin(aFileName); |
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240 if (index<=KErrNotFound) |
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241 return index; |
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242 |
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243 // Get the drive unit |
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244 aDrive = (*iImplArray)[index]->Drive(); |
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245 |
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246 return KErrNone; |
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247 } |