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1 /* |
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2 * Copyright (c) 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: Implementation of state manager for session and audio routing states. |
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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 // INCLUDE FILES |
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21 #include "CVtEngStateManager.h" |
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22 #include "CVtEngHandlerContainer.h" |
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23 #include "CVtEngStateBase.h" |
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24 #include "CVtEngStateIdle.h" |
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25 #include "CVtEngStateOpen.h" |
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26 #include "CVtEngEventManager.h" |
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27 #include "CVtEngStateConnected.h" |
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28 #include "CVtEngOperation.h" |
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29 #include "cvtlogger.h" |
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30 |
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31 // ============================ MEMBER FUNCTIONS =============================== |
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32 |
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33 // ----------------------------------------------------------------------------- |
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34 // CVtEngStateManager::CVtEngStateManager |
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35 // C++ constructor can NOT contain any code, that |
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36 // might leave. |
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37 // ----------------------------------------------------------------------------- |
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38 // |
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39 CVtEngStateManager::CVtEngStateManager( |
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40 CVtEngHandlerContainer& aHandlers, |
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41 CVtEngEventManager& aEventManager ) : |
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42 iPreviousSessionState( MVtEngSessionInfo::EUnknown ), |
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43 iHandlers( aHandlers ), |
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44 iEventManager( aEventManager ) |
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45 { |
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46 } |
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47 |
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48 // ----------------------------------------------------------------------------- |
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49 // CVtEngStateManager::ConstructL |
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50 // Symbian 2nd phase constructor can leave. |
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51 // ----------------------------------------------------------------------------- |
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52 // |
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53 void CVtEngStateManager::ConstructL() |
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54 { |
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55 iSessionState = new ( ELeave ) |
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56 CVtEngStateIdle( *this, iEventManager ); |
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57 } |
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58 |
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59 // ----------------------------------------------------------------------------- |
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60 // CVtEngStateManager::NewL |
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61 // Two-phased constructor. |
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62 // ----------------------------------------------------------------------------- |
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63 // |
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64 CVtEngStateManager* CVtEngStateManager::NewL( |
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65 CVtEngHandlerContainer& aHandlers, |
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66 CVtEngEventManager& aEventManager ) |
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67 { |
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68 __VTPRINT( DEBUG_GEN , "CVtEngStateManager::NewL" ) |
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69 CVtEngStateManager* self = new ( ELeave ) |
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70 CVtEngStateManager( aHandlers, aEventManager ); |
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71 |
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72 CleanupStack::PushL( self ); |
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73 self->ConstructL(); |
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74 CleanupStack::Pop(); |
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75 |
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76 return self; |
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77 } |
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78 |
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79 |
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80 // Destructor |
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81 CVtEngStateManager::~CVtEngStateManager() |
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82 { |
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83 __VTPRINT( DEBUG_GEN , "CVtEngStateManager::~" ) |
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84 delete iSessionState; |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // CVtEngStateManager::UpdateL |
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89 // Updates current state. |
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90 // |
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91 // ----------------------------------------------------------------------------- |
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92 // |
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93 void CVtEngStateManager::Update( ) |
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94 { |
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95 if ( iSessionState ) |
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96 { |
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97 TRAPD(err,iSessionState->UpdateL()); |
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98 if ( err != KErrNone ) |
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99 { |
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100 __VTPRINT2( DEBUG_GEN, "SM.update fail=%d", err ) |
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101 iEventManager.NotifyEvent( err ); |
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102 } |
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103 } |
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104 } |
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105 |
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106 // ----------------------------------------------------------------------------- |
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107 // CVtEngStateManager::IsCommandPossible |
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108 // Checks if a command is possible in current state. |
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109 // |
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110 // ----------------------------------------------------------------------------- |
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111 // |
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112 TBool CVtEngStateManager::IsCommandPossible( |
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113 const TVtEngCommandId aCommandId ) const |
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114 { |
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115 if ( iSessionState ) |
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116 { |
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117 return iSessionState->ValidateCommand( aCommandId ); |
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118 } |
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119 return EFalse; |
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120 } |
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121 |
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122 // ----------------------------------------------------------------------------- |
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123 // CVtEngStateManager::SetState |
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124 // Sets new session state. |
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125 // |
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126 // ----------------------------------------------------------------------------- |
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127 // |
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128 void CVtEngStateManager::SetState( CVtEngStateBase& aNewState ) |
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129 { |
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130 if( iSessionState ) |
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131 { |
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132 iPreviousSessionState = iSessionState->State(); |
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133 } |
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134 iSessionState = &aNewState; |
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135 } |
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136 |
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137 // ----------------------------------------------------------------------------- |
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138 // CVtEngStateManager::HandleOperationL |
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139 // |
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140 // |
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141 // ----------------------------------------------------------------------------- |
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142 // |
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143 TBool CVtEngStateManager::HandleOperationL( CVtEngOperation& aOp ) |
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144 { |
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145 __VTPRINT2( DEBUG_GEN, "StateMgr.HandleOp=%d", aOp.Command() ) |
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146 TInt handled( EFalse ); |
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147 if ( iSessionState ) |
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148 { |
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149 handled = iSessionState->HandleL( aOp ); |
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150 } |
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151 __VTPRINT2( DEBUG_GEN | DEBUG_RETURN, "StateMgr.HandleOp handled=%d", |
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152 handled ) |
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153 return handled; |
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154 } |
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155 |
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156 // ----------------------------------------------------------------------------- |
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157 // CVtEngStateManager::SessionState |
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158 // Returns session state. |
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159 // |
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160 // ----------------------------------------------------------------------------- |
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161 // |
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162 MVtEngSessionInfo::TSessionState CVtEngStateManager::SessionState() const |
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163 { |
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164 if ( iSessionState ) |
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165 { |
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166 return iSessionState->State(); |
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167 } |
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168 return MVtEngSessionInfo::EUnknown; |
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169 } |
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170 |
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171 // ----------------------------------------------------------------------------- |
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172 // CVtEngStateManager::PreviousSessionState |
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173 // Returns session state. |
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174 // |
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175 // ----------------------------------------------------------------------------- |
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176 // |
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177 MVtEngSessionInfo::TSessionState CVtEngStateManager::PreviousSessionState() const |
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178 { |
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179 return iPreviousSessionState; |
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180 } |
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181 |
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182 // End of File |