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1 /* |
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2 * Copyright (c) 2006, 2007 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: Class definition of Status Manager |
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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 C_LBTLOCATIONREQUESTOR_H |
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21 #define C_LBTLOCATIONREQUESTOR_H |
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22 |
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23 |
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24 #include <lbs.h> |
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25 #include "lbtpsychangeobserver.h" |
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26 |
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27 // FORWARD DECLARATIONS |
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28 class CLbtPsyChangeListner; |
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29 |
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30 |
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31 /** |
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32 * This class defines the methods used by CLbtStrategyEngine to acquire |
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33 * location information. This is a wrapper class that establishes a session |
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34 * to location server to obtain location information. |
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35 */ |
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36 NONSHARABLE_CLASS( CLbtLocationRequestor ) : public CBase, |
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37 public MLbtPsyChangeObserver |
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38 |
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39 { |
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40 |
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41 public: // Methods |
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42 |
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43 /** |
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44 * Factory function that instantiates an object of CLbtLocationRequestor |
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45 * |
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46 * @param aPosID - Identifies the module to be used by location server to |
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47 * obtain location information |
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48 */ |
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49 static CLbtLocationRequestor* NewL( ); |
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50 |
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51 /** |
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52 * Destructor |
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53 */ |
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54 ~CLbtLocationRequestor(); |
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55 |
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56 /** |
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57 * Requests location information from location server |
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58 * |
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59 * @param aPosInfo - Holds the current position of the device |
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60 * @param aStatus - Holds the result of the asynchronous request |
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61 * @aPosID - Identifies the module to be used by location server to obtain |
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62 * location information |
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63 */ |
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64 void CurrentLocation( TPositionInfo& aPosInfo, |
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65 TRequestStatus& aStatus, TPositionModuleId aPosID, |
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66 TTimeIntervalMicroSeconds aTimeOut ); |
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67 |
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68 /** |
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69 * Request location information from NPP Psy |
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70 */ |
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71 void CurrentLocationFromNpp( TPositionInfo& aPosInfo, |
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72 TRequestStatus& aStatus, |
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73 TTimeIntervalMicroSeconds aTimeOut ); |
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74 |
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75 /** |
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76 * Retrieves information about the positioning technology being used |
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77 */ |
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78 void GetModuleInfo( TPositionModuleId aPosID ); |
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79 |
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80 /** |
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81 * Retrieves position module Id used to get location information |
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82 */ |
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83 TPositionModuleId GetPositionModuleId(); |
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84 |
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85 /** |
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86 * Determines if GPS method is used to retrieve location information |
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87 */ |
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88 TBool GPSUsed() const; |
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89 |
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90 /** |
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91 * Cancels an outstanding request for obtaining location information |
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92 */ |
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93 void Cancel(); |
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94 |
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95 /** |
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96 * Cancels an outstanding request for obtaining location information from NPP PSY |
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97 */ |
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98 void CancelFixFromNpp(); |
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99 |
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100 private: |
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101 |
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102 /** |
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103 * Default constructor |
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104 */ |
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105 CLbtLocationRequestor(); |
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106 |
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107 /** |
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108 * 2nd phase constuctor for instantiating member variables |
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109 * @param aPosID - Identifies the module to be used by location server to |
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110 * obtain location information |
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111 */ |
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112 void ConstructL( ); |
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113 |
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114 /** |
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115 * Checks for changes |
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116 * @param aPosID - Identifies the module to be used by location server to |
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117 * obtain location information |
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118 */ |
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119 void OpenConnectionL( TPositionModuleId aPosID ); |
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120 |
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121 private: // from MLbtPsyChangeObserver |
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122 void HandlePsyChangeEvent( TPositionModuleId aModuleId ); |
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123 |
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124 private: |
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125 |
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126 /** |
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127 * Handle to the location server interface |
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128 */ |
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129 RPositionServer iPosServer; |
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130 |
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131 /** |
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132 * Handle to create a subsession with the location sever |
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133 */ |
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134 RPositioner iPositioner; |
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135 |
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136 /** |
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137 * Handle to NPP psy |
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138 */ |
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139 RPositioner iNppPositioner; |
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140 |
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141 /** |
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142 * Identifies the module to be used by location server to obtain location |
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143 * information |
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144 */ |
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145 TPositionModuleId iPosID; |
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146 |
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147 /** |
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148 * Identifier to determine if GPS method is being used to obtain location |
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149 * information |
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150 */ |
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151 TBool iGPSUsed; |
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152 |
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153 /** |
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154 * Identifier to determine if the handle to NPP psy is valid |
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155 */ |
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156 TBool iValidNppHandle; |
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157 |
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158 /** |
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159 * Object to listen to PSY Changes if NBP is not enabled |
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160 */ |
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161 CLbtPsyChangeListner* iNbpChangeListener; |
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162 |
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163 }; |
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164 |
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165 #endif // C_LBTLOCATIONREQUESTOR_H |