1 /* |
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2 * Copyright (c) 2002-2010 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: Base class for SAT commands |
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15 * |
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16 */ |
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17 |
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18 #ifndef CSATCOMMANDHANDLER_H |
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19 #define CSATCOMMANDHANDLER_H |
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20 |
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21 // INCLUDES |
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22 #include <e32base.h> |
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23 #include <etelsat.h> |
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24 #include <SecondaryDisplay/secondarydisplaysatapi.h> |
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25 #include "MSatUtils.h" |
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26 #include "MSatEventObserver.h" |
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27 #include "MSatCommand.h" |
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28 |
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29 // CLASS DECLARATION |
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30 |
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31 /** |
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32 * Base class for SAT commands. |
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33 * |
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34 * @lib SatServer |
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35 * @since Series 60 3.0 |
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36 */ |
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37 class CSatCommandHandler : public CActive, public MSatEventObserver, |
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38 public MSatCommand |
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39 { |
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40 public: // Constructors and destructor |
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41 |
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42 /** |
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43 * Two-phased constructor. |
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44 * @param aImplUid Uid for derived class's plugin |
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45 * @param aUtils Utils interface |
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46 */ |
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47 static CSatCommandHandler* NewL( |
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48 const TUid& aImplUid, |
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49 MSatUtils* aUtils ); |
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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 IMPORT_C virtual ~CSatCommandHandler(); |
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55 |
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56 public: // New fucntions |
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57 |
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58 /** |
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59 * Start the waiting of SAT command from USAT API. |
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60 */ |
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61 IMPORT_C void Start(); |
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62 |
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63 /** |
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64 * Gives a panic. |
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65 * @param aCategory A category for this panic |
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66 * @param aReason Reason for this panic |
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67 */ |
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68 IMPORT_C void Panic( const TDesC& aCategory, TInt aReason ) const; |
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69 |
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70 /** |
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71 * Indicates is this command handler currently executing a command. |
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72 * @return ETrue if executing. |
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73 */ |
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74 IMPORT_C TBool IsCommandExecuting() const ; |
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75 |
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76 public: // Functions from base classes |
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77 |
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78 /** |
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79 * From MSatEventObserver Notification of event. |
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80 * @param aEvent An event that has been notified |
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81 */ |
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82 IMPORT_C void Event( TInt aEvent ); |
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83 |
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84 /** |
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85 * From MSatCommand Response from client. |
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86 * Default implementation will cause panic. |
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87 */ |
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88 IMPORT_C virtual void ClientResponse(); |
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89 |
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90 protected: // New functions |
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91 |
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92 /** |
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93 * Start of the command handling. Asks from derived class whether the |
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94 * command is allowed to execute by calling AllowCommand. |
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95 * If command is allowed to execute then the need of ui session |
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96 * is queried by calling NeedUiSession. If ui session is needed and |
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97 * its not available, ui is launcehd and this class registers itself |
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98 * to listen the event of ui launch. After the ui is launched, |
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99 * HandleCommand is called. If the derived class does not need the ui |
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100 * session or ui session is available, HandleCommand is called |
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101 * immediatly. |
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102 */ |
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103 IMPORT_C virtual void DoHandleCommand(); |
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104 |
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105 /** |
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106 * Derived class needs to make the request from USatApi. |
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107 * @param aStatus Status of request. |
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108 */ |
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109 virtual void IssueUSATRequest( TRequestStatus& aStatus ) = 0; |
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110 |
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111 /** |
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112 * Command has to check the state of the system and make the |
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113 * desision of allowing the command to perform. If desision |
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114 * is not to allow the command, then the terminal response has to |
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115 * sent from this method. |
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116 * @return TBool indicating is this command allowed or not |
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117 */ |
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118 virtual TBool CommandAllowed() = 0; |
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119 |
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120 /** |
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121 * Queries need of ui session in order to |
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122 * execute the command. If ui session is needed, the ui client |
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123 * launched and this class will register it self for the notification |
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124 * of ui request. |
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125 * @return ETrue if ui session is needed. |
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126 */ |
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127 virtual TBool NeedUiSession() = 0; |
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128 |
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129 /** |
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130 * Called when USAT API notifies that command |
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131 * data is available. |
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132 */ |
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133 virtual void HandleCommand() = 0; |
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134 |
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135 /** |
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136 * Called if launch of a Sat Ui application failed. |
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137 * Every derived class, which needs a ui session in order to |
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138 * execute command, needs to send a terminal |
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139 * response from this method. |
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140 */ |
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141 virtual void UiLaunchFailed() = 0; |
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142 |
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143 protected: |
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144 |
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145 /** |
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146 * Sends terminal response and renews the usat request of the command. |
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147 * @param aPCmd Identifies the command, which is sending |
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148 * terminal response. |
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149 * @param aRsp Terminal response data package. |
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150 */ |
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151 IMPORT_C void TerminalRsp( RSat::TPCmd aPCmd, const TDesC8& aRsp ); |
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152 |
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153 /** |
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154 * Calls SatSystemState's IsPhoneInIdleState if not using Dummy TSY, |
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155 * otherwise returns ETrue |
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156 * @return ETrue if using Dymmy TSY, otherwise asks status |
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157 * from SatSystemState and returns it. |
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158 */ |
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159 IMPORT_C TBool IsPhoneInIdleState(); |
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160 |
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161 protected: // From CActive |
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162 |
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163 /** |
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164 * From CActive base class |
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165 */ |
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166 IMPORT_C void RunL(); |
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167 |
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168 protected: |
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169 |
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170 /** |
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171 * C++ default constructor. |
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172 */ |
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173 IMPORT_C CSatCommandHandler(); |
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174 |
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175 /** |
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176 * By default Symbian 2nd phase constructor is private. |
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177 * @param aPtr Pointer to Utils interface |
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178 */ |
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179 IMPORT_C void BaseConstructL( MSatUtils* aPtr ); |
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180 |
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181 protected: // Data |
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182 |
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183 // Utils interface |
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184 MSatUtils* iUtils; |
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185 |
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186 // Indicates that command is pending for UI to launch |
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187 TBool iWaitingUiLaunch; |
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188 |
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189 private: // Data |
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190 |
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191 // Requiered attribute for the ECOM framework. |
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192 TUid iDtorIDKey; |
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193 |
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194 // Indicates is this command handler executing |
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195 TBool iIsExecuting; |
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196 |
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197 // Timer to get UI Launch notification released before |
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198 // starting to handle pending proactive command. |
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199 RTimer iDelayTimer; |
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200 |
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201 }; |
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202 |
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203 #endif // CSATCOMMANDHANDLER_H |
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204 |
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205 // End of File |
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