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1 /* |
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2 * Copyright (c) 2005-2006 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: Implements the Services DB 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 <e32std.h> |
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20 #include <bautils.h> |
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21 #include <StringLoader.h> |
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22 |
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23 #include <services_db.h> |
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24 |
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25 // ======== MEMBER FUNCTIONS ======== |
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26 |
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27 // --------------------------------------------------------------------------- |
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28 // CServicesDB::NewLC() |
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29 // |
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30 // |
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31 // --------------------------------------------------------------------------- |
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32 // |
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33 EXPORT_C CServicesDB* CServicesDB::NewLC( TResourceReader* aResReader ) |
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34 { |
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35 CServicesDB* self = new (ELeave) CServicesDB(); |
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36 CleanupStack::PushL(self); |
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37 self->ConstructL(aResReader); |
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38 return self; |
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39 } |
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40 |
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41 // --------------------------------------------------------------------------- |
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42 // CServicesDB::NewL() |
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43 // |
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44 // |
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45 // --------------------------------------------------------------------------- |
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46 // |
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47 EXPORT_C CServicesDB* CServicesDB::NewL( TResourceReader* aResReader ) |
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48 { |
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49 CServicesDB* self = CServicesDB::NewLC(aResReader); |
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50 CleanupStack::Pop(self); |
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51 return self; |
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52 } |
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53 |
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54 // --------------------------------------------------------------------------- |
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55 // CServicesDB::CServicesDB() |
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56 // |
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57 // |
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58 // --------------------------------------------------------------------------- |
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59 // |
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60 CServicesDB::CServicesDB() |
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61 { |
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62 //no implementation necessary |
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63 } |
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64 |
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65 // --------------------------------------------------------------------------- |
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66 // CServicesDB::~CServicesDB() |
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67 // |
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68 // |
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69 // --------------------------------------------------------------------------- |
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70 // |
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71 EXPORT_C CServicesDB::~CServicesDB() |
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72 { |
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73 iServiceUids.Close(); |
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74 iServiceNames.ResetAndDestroy(); |
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75 iServiceLoc.ResetAndDestroy(); |
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76 } |
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77 |
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78 // --------------------------------------------------------------------------- |
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79 // The class is constructed by reading the data from the specified resource id into memory |
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80 // --------------------------------------------------------------------------- |
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81 // |
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82 void CServicesDB::ConstructL( TResourceReader* aResReader ) |
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83 { |
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84 TInt i; |
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85 TInt count = aResReader->ReadInt16(); |
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86 for ( i = 0; i < count; i++ ) |
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87 { |
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88 //read the service uid |
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89 TInt uid=aResReader->ReadInt32(); |
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90 if(uid == 0)User::Leave(KErrArgument); |
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91 //read the service name |
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92 HBufC* service=aResReader->ReadHBufCL(); |
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93 if(!service)User::Leave(KErrArgument); |
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94 //read the localized string |
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95 HBufC* serviceLoc=aResReader->ReadHBufCL(); |
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96 if(!serviceLoc)User::Leave(KErrArgument); |
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97 |
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98 //append things |
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99 iServiceUids.Append(uid); |
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100 iServiceNames.Append(service);//takes ownership |
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101 iServiceLoc.Append(serviceLoc);//takes ownership |
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102 } |
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103 //done |
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104 } |
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105 |
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106 // --------------------------------------------------------------------------- |
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107 // Returns the number of available services |
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108 // (the number of services read from the resource during construction) |
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109 // --------------------------------------------------------------------------- |
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110 // |
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111 EXPORT_C TInt CServicesDB::Count() const |
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112 { |
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113 return iServiceUids.Count(); |
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114 } |
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115 |
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116 // --------------------------------------------------------------------------- |
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117 // Function to return the Uid of a service (by index). |
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118 // --------------------------------------------------------------------------- |
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119 // |
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120 EXPORT_C TUid CServicesDB::ServiceUidL(TInt aIndex) const |
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121 { |
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122 if(aIndex<0 || aIndex>=iServiceUids.Count()) |
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123 User::Leave(KErrArgument); |
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124 return TUid::Uid(iServiceUids[aIndex]); |
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125 } |
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126 |
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127 |
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128 // --------------------------------------------------------------------------- |
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129 // Function to return the localized name associated with a service. If the returned |
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130 // strings accepts a parameter, this can be specified as aParam |
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131 // --------------------------------------------------------------------------- |
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132 // |
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133 EXPORT_C HBufC* CServicesDB::ServiceStringLC(TInt aIndex, const TDes& aParam) const |
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134 { |
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135 TInt size=aParam.Size(); |
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136 HBufC *string=NULL; |
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137 |
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138 //check parameters |
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139 if(aIndex<0 || aIndex>=iServiceUids.Count()) |
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140 User::Leave(KErrArgument); |
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141 |
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142 //get the size of the new string |
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143 size+=iServiceLoc[aIndex]->Size(); |
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144 //allocate the string |
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145 string = HBufC::NewLC(size); |
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146 //create string content |
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147 TPtr ptr=string->Des(); |
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148 if(aParam.Size()) |
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149 { |
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150 //we have something in aParam |
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151 //ptr.Format(*iServiceLoc[aIndex],&aParam); |
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152 StringLoader::Format(ptr,*iServiceLoc[aIndex],-1,aParam); |
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153 } |
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154 else |
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155 { |
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156 //nothing in aParam, just copy the localized string to string |
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157 ptr.Copy(*iServiceLoc[aIndex]); |
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158 } |
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159 //done, return |
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160 return string; //string is on the stack, too |
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161 } |
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162 |
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163 // --------------------------------------------------------------------------- |
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164 // Function to return the localized name associated with a service. If the returned |
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165 // strings accepts a parameter, this can be specified as aParam |
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166 // --------------------------------------------------------------------------- |
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167 // |
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168 EXPORT_C HBufC* CServicesDB::ServiceStringLC(TUid aServiceUid, const TDes& aParam) const |
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169 { |
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170 HBufC* string=NULL; |
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171 TInt i; |
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172 |
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173 //look for the service UIDs |
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174 for(i=0; i<iServiceUids.Count(); i++) |
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175 { |
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176 if(iServiceUids[i] == aServiceUid.iUid) |
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177 { |
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178 string = ServiceStringLC(i,aParam); |
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179 break;//service found |
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180 } |
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181 } |
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182 if(!string)CleanupStack::PushL(string);//otherwise, string is already on the stack! |
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183 return string; |
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184 } |
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185 |
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186 // --------------------------------------------------------------------------- |
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187 // Function to return the generic name of a service. |
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188 // --------------------------------------------------------------------------- |
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189 // |
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190 EXPORT_C HBufC* CServicesDB::ServiceNameLC(TInt aIndex) const |
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191 { |
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192 HBufC* string=NULL; |
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193 TInt size=0; |
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194 |
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195 //check parameters |
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196 if(aIndex<0 || aIndex>=iServiceUids.Count()) |
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197 User::Leave(KErrArgument); |
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198 |
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199 //get the size of the new string |
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200 size=iServiceNames[aIndex]->Size(); |
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201 //allocate the string |
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202 string = HBufC::NewLC(size); |
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203 //create string content |
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204 TPtr ptr=string->Des(); |
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205 ptr.Copy(*iServiceNames[aIndex]); |
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206 return string; |
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207 } |
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208 |
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209 // --------------------------------------------------------------------------- |
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210 // Function to return the generic name of a service. |
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211 // --------------------------------------------------------------------------- |
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212 // |
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213 EXPORT_C HBufC* CServicesDB::ServiceNameLC(TUid aServiceUid) const |
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214 { |
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215 HBufC* string=NULL; |
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216 TInt i; |
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217 |
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218 //loc for the service UIDs |
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219 for(i=0; i<iServiceUids.Count(); i++) |
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220 { |
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221 if(iServiceUids[i] == aServiceUid.iUid) |
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222 { |
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223 string = ServiceNameLC(i); |
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224 break;//service found |
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225 } |
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226 } |
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227 if(!string)CleanupStack::PushL(string);//otherwise, string is already on the stack! |
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228 return string; |
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229 } |
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230 |