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1 /* |
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2 * Copyright (c) 2007-2009 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 |
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18 |
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19 |
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20 #ifndef FEATDISCOVERYIMPL_H |
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21 #define FEATDISCOVERYIMPL_H |
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22 |
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23 // INCLUDES |
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24 #include <e32base.h> |
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25 |
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26 #include "featurecontrol.h" |
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27 |
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28 class CFeatureDiscoveryImpl : public CBase |
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29 { |
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30 public: |
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31 |
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32 /** |
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33 * This is a two-phase constructor method that is used to create |
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34 * a new instance of the CFeatureDiscoveryImpl class. |
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35 * |
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36 * @return a pointer to a new instance of the CFeatureDiscoveryImpl class. |
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37 * |
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38 * @leave Any One of the Symbian OS system-wide error codes |
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39 */ |
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40 static CFeatureDiscoveryImpl* NewL(); |
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41 |
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42 /** |
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43 * Destructor. |
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44 */ |
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45 virtual ~CFeatureDiscoveryImpl(); |
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46 |
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47 /** |
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48 * Static way to fetch information whether a certain feature is |
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49 * supported in the current envinronment. There is no need to create |
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50 * an instance of the class when using this method. |
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51 * |
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52 * @param aFeature is the feature UID of the feature that is queried. |
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53 * @return TBool indicating whether the feature is supported (ETrue) |
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54 * or not (EFalse). If the feature does not exist, the return value is |
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55 * EFalse. |
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56 * |
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57 * @leave Any One of the Symbian OS system-wide error codes |
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58 */ |
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59 static TBool IsFeatureSupportedL(TUid aFeature); |
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60 |
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61 /** |
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62 * Dynamic way to fetch information whether a certain feature is |
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63 * supported in the current environment. Before calling the method |
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64 * an instance of the CFeatureDiscoveryImpl class need to be created by |
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65 * using one of the factory methods, NewL() or NewLC(). The created |
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66 * instance must be deleted after use. |
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67 * |
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68 * @param aFeature is the feature UID of the feature that is queried. |
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69 * @return TBool indicating whether the feature is supported (ETrue) |
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70 * or not (EFalse). If the feature does not exist, the return value is |
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71 * EFalse. |
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72 */ |
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73 TBool IsSupported(TUid aFeature); |
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74 |
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75 /** |
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76 * Static way to fetch information whether set of features are |
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77 * supported in the current envinronment. There is no need to create |
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78 * an instance of the class when using this method. |
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79 * |
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80 * @param aFeatures is the wrapper class for feature array queried. |
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81 * @leave Any One of the Symbian OS system-wide error codes |
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82 */ |
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83 static void FeaturesSupportedL( TFeatureSet& aFeatures ); |
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84 |
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85 /** |
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86 * Dynamic way to fetch information whether set of features are |
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87 * supported in the current environment. Before calling the method |
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88 * an instance of the CFeatureDiscovery class need to be created by |
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89 * using one of the factory methods, NewL() or NewLC(). The created |
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90 * instance must be deleted after use. |
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91 * |
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92 * @param aFeatures is the wrapper class for feature array queried. |
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93 * @return KErrNone if status query succeeded. |
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94 * Otherwise one of the Symbian OS error codes |
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95 */ |
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96 TInt FeaturesSupported( TFeatureSet& aFeatures ); |
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97 |
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98 private: |
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99 |
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100 /** |
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101 * C++ default constructor. |
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102 */ |
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103 CFeatureDiscoveryImpl(); |
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104 |
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105 /** |
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106 * By default Symbian OS constructor is private. |
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107 */ |
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108 void ConstructL(); |
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109 |
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110 private: |
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111 |
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112 // Feature Manager server client |
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113 RFeatureControl iFeatControl; |
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114 } ; |
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115 |
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116 |
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117 #endif // FEATDISCOVERYIMPL_H |
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118 |
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119 // EOF |