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1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Implementation of wrapper API for querying support for features on a device, It |
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15 // internally uses Feature Manager query APIs. |
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16 // |
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17 // |
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18 |
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19 #include <e32uid.h> |
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20 #include <featdiscovery.h> |
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21 #include "featregpan.h" |
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22 #include "featreg.h" |
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23 #include "featregcmn.h" |
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24 |
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25 // Class to hold pointers to Cleanup stack & Feature Manager CFeatureDiscovery |
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26 // virtual methods from CBase that result in these _TZ entries being generated. |
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27 //NONSHARABLE_CLASS is used to remove _ZTI & _ZTV entry from def file . |
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28 NONSHARABLE_CLASS (CImplFeatDisc ) : public CBase |
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29 { |
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30 public: |
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31 static CImplFeatDisc* NewL(); |
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32 ~CImplFeatDisc(); |
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33 private: |
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34 CImplFeatDisc(); |
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35 void ConstructL(); |
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36 |
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37 public: |
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38 |
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39 CFeatureDiscovery *iFeatDis; |
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40 CTrapCleanup * iCleanup; |
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41 }; |
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42 |
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43 |
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44 CImplFeatDisc::CImplFeatDisc() : |
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45 iFeatDis( NULL ), |
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46 iCleanup(NULL) |
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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 CImplFeatDisc::~CImplFeatDisc() |
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52 { |
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53 delete iFeatDis; |
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54 iFeatDis = 0; |
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55 |
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56 delete iCleanup; |
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57 iCleanup = 0; |
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58 } |
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59 |
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60 void CImplFeatDisc::ConstructL() |
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61 { |
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62 iFeatDis = CFeatureDiscovery::NewL(); |
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63 } |
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64 |
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65 |
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66 CImplFeatDisc* CImplFeatDisc::NewL() |
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67 { |
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68 CImplFeatDisc* self = new( ELeave ) CImplFeatDisc(); |
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69 CleanupStack::PushL( self ); |
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70 self->ConstructL(); |
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71 CleanupStack::Pop( self ); |
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72 |
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73 return self; |
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74 } |
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75 |
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76 |
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77 /** |
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78 * Dummy feature registry implementation object - never instantiated. |
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79 * @internalComponent |
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80 */ |
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81 class RFeatureRegistry::TImpl |
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82 { |
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83 TUint32 iDummy; |
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84 }; |
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85 |
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86 /** |
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87 * Opens connection to the Feature Registry for making non-static queries. |
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88 * Note all non-static queries return state at the time Open() was called; |
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89 * Feature Registry changes are not observed until instance closed and re-opened. |
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90 * |
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91 * @return KErrNone if successful, negative system-wide error code if fails |
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92 * @publishedPartner |
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93 * @deprecated |
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94 */ |
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95 EXPORT_C TInt RFeatureRegistry::Open() |
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96 { |
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97 __ASSERT_ALWAYS(iImpl == NULL, Panic(EFeatRegInvalidUse)); |
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98 |
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99 CTrapCleanup *cleanup = NULL; |
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100 |
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101 if(User::TrapHandler() == NULL) |
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102 { |
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103 cleanup = CTrapCleanup::New(); |
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104 if(cleanup == NULL) |
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105 { |
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106 return KErrNoMemory; |
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107 } |
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108 } |
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109 |
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110 CImplFeatDisc *ptrh = NULL; |
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111 TRAPD( err, ptrh = CImplFeatDisc::NewL() ); |
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112 if ( err == KErrNone ) |
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113 { |
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114 ptrh->iCleanup = cleanup; |
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115 iImpl = reinterpret_cast<TImpl*> (ptrh); |
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116 } |
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117 else |
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118 delete cleanup; |
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119 return err; |
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120 } |
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121 |
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122 /** |
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123 * Queries support for feature on the device. |
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124 * Non-static version requiring open instance of class. |
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125 * Recommended when making multiple queries. |
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126 * Note: returns support for feature from the time Open() was called. |
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127 * |
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128 * @param aFeatureUid Unique identifier of feature being queried |
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129 * @return positive value if feature is supported, zero if feature is not supported, |
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130 * or negative system-wide error code if could not be determined. |
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131 * @pre this registry instance is open |
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132 * @panic FeatReg EFeatRegInvalidUse if this registry instance is not open |
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133 * @publishedPartner |
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134 * @deprecated |
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135 */ |
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136 EXPORT_C TInt RFeatureRegistry::QuerySupport(TUid aFeatureUid) |
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137 { |
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138 |
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139 TUint32 dummyInfo; |
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140 return QuerySupport(aFeatureUid, dummyInfo); |
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141 } |
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142 |
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143 /** |
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144 * Queries support for feature on the device. |
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145 * Non-static version requiring open instance of class. |
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146 * Recommended when making multiple queries. |
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147 * Note: returns support for feature from the time Open() was called. |
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148 * |
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149 * @param aFeatureUid Unique identifier of feature being queried |
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150 * @param aInfo addition status information about feature |
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151 * @return positive value if feature is supported, zero if feature is not supported, |
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152 * or negative system-wide error code if could not be determined. |
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153 * @pre this registry instance is open |
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154 * @panic FeatReg EFeatRegInvalidUse if this registry instance is not open |
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155 * @publishedPartner |
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156 * @deprecated |
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157 */ |
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158 EXPORT_C TInt RFeatureRegistry::QuerySupport(TUid aFeatureUid, TUint32& aInfo) |
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159 { |
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160 __ASSERT_ALWAYS(iImpl != NULL, Panic(EFeatRegInvalidUse)); |
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161 |
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162 CImplFeatDisc *ptrh = reinterpret_cast<CImplFeatDisc*> (iImpl); |
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163 |
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164 if(ptrh->iFeatDis->IsSupported(aFeatureUid)) |
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165 { |
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166 |
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167 //FeatReg support only ROM features so EStatusUpgradableBit has no meaning |
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168 //So aInfo always set to EStatusSupportBit in this wrapper |
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169 aInfo = EStatusSupportBit; |
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170 return EStatusSupportBit; |
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171 } |
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172 |
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173 // feature not supported |
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174 aInfo =0; |
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175 return 0; |
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176 } |
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177 |
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178 /** |
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179 * Closes this registry instance. |
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180 * @publishedPartner |
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181 * @deprecated |
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182 */ |
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183 EXPORT_C void RFeatureRegistry::Close() |
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184 { |
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185 CImplFeatDisc *ptrh = reinterpret_cast<CImplFeatDisc*> (iImpl); |
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186 delete ptrh; |
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187 ptrh = 0; |
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188 } |
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189 |
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190 /** |
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191 * Queries support for feature on the device. |
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192 * Static version recommended for single queries. |
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193 * |
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194 * @param aFeatureUid Unique identifier of feature being queried |
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195 * @return positive value if feature is supported, zero if feature is not supported, |
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196 * or negative system-wide error code if could not be determined. |
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197 * @publishedPartner |
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198 * @deprecated |
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199 */ |
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200 EXPORT_C TInt RFeatureRegistry::QuerySupportS(TUid aFeatureUid) |
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201 { |
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202 TUint32 dummyInfo; |
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203 return QuerySupportS(aFeatureUid, dummyInfo); |
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204 } |
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205 |
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206 /** |
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207 * Queries support for feature on the device. |
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208 * Static version recommended for single queries. |
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209 * |
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210 * @param aFeatureUid Unique identifier of feature being queried |
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211 * @param aInfo addition status information about feature |
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212 * @return positive value if feature is supported, zero if feature is not supported, |
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213 * or negative system-wide error code if could not be determined. |
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214 * @publishedPartner |
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215 * @deprecated |
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216 */ |
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217 EXPORT_C TInt RFeatureRegistry::QuerySupportS(TUid aFeatureUid, TUint32& aInfo) |
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218 { |
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219 CTrapCleanup * cleanup = NULL; |
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220 if(User::TrapHandler() == NULL) |
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221 { |
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222 cleanup = CTrapCleanup::New(); |
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223 if(cleanup == NULL) |
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224 { |
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225 return KErrNoMemory; |
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226 } |
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227 } |
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228 TBool supported = EFalse; |
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229 TRAPD( err, supported = CFeatureDiscovery::IsFeatureSupportedL(aFeatureUid) ); |
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230 |
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231 if(cleanup != NULL) |
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232 delete cleanup; |
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233 |
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234 if (err != KErrNone) |
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235 { |
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236 return err; |
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237 } |
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238 |
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239 if ( supported) |
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240 { |
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241 //FeatReg support only ROM features so EStatusUpgradableBit has no meaning |
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242 //So aInfo always set to EStatusSupportBit in this wrapper |
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243 aInfo = EStatusSupportBit; |
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244 return EStatusSupportBit; |
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245 } |
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246 |
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247 // feature not supported |
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248 aInfo =0; |
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249 return 0; |
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250 |
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251 } |
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252 |
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253 |
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254 // CLASS DECLARATION |
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255 |
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256 /** |
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257 Dummy class. Contains placeholder for a removed RFeatureRegistryNotify function to prevent BC break. |
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258 @internalComponent |
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259 */ |
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260 class Dummy |
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261 { |
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262 |
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263 public: // New functions |
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264 |
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265 IMPORT_C static void Dummy1(); |
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266 IMPORT_C static void Dummy2(); |
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267 IMPORT_C static TInt Dummy3(); |
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268 IMPORT_C static void Dummy4(TRequestStatus &); |
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269 }; |
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270 |
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271 // ================= MEMBER FUNCTIONS ======================= |
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272 |
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273 |
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274 /** |
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275 Dummy method |
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276 @internalComponent |
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277 */ |
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278 EXPORT_C void Dummy::Dummy1() { } |
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279 |
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280 /** |
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281 Dummy method |
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282 @internalComponent |
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283 */ |
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284 EXPORT_C void Dummy::Dummy2() { } |
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285 /** |
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286 Dummy method |
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287 @internalComponent |
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288 @return KErrNotSupported |
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289 */ |
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290 EXPORT_C TInt Dummy::Dummy3() |
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291 { |
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292 return KErrNotSupported; |
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293 } |
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294 |
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295 /** |
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296 Dummy method |
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297 @internalComponent |
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298 */ |
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299 EXPORT_C void Dummy::Dummy4(TRequestStatus &) { } |
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300 |
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301 |
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302 |
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303 |
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304 |