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1 /* |
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2 * Copyright (c) 2004-2006 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: Negotiating state |
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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 // INCLUDE FILES |
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20 #include "CVtEngStateNegotiating.h" |
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21 #include <cvtlogger.h> |
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22 |
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23 |
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24 // ============================ MEMBER FUNCTIONS =============================== |
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25 |
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26 // ----------------------------------------------------------------------------- |
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27 // CVtEngStateNegotiating::CVtEngStateNegotiating |
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28 // C++ constructor can NOT contain any code, that |
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29 // might leave. |
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30 // ----------------------------------------------------------------------------- |
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31 // |
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32 CVtEngStateNegotiating::CVtEngStateNegotiating( |
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33 CVtEngStateManager& aStateManager, |
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34 CVtEngEventManager& aEventManager ) |
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35 : CVtEngStateBase( aStateManager, aEventManager ) |
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36 { |
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37 } |
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38 |
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39 // Destructor |
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40 CVtEngStateNegotiating::~CVtEngStateNegotiating() |
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41 { |
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42 __VTPRINT( DEBUG_DESTRUCT, "~Stateneg") |
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43 } |
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44 |
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45 |
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46 // ----------------------------------------------------------------------------- |
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47 // CVtEngStateNegotiating::UpdateL |
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48 // Updates state |
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49 // (other items were commented in a header). |
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50 // ----------------------------------------------------------------------------- |
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51 // |
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52 void CVtEngStateNegotiating::UpdateL() |
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53 { |
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54 __VTPRINTENTER( "StateNegotiate.Update" ) |
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55 const MVtCtlCallControl::TVtCtlState bearerstate = |
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56 SessionHandler().RealState(); |
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57 const MVtProtocolCommand::TVtProtocolState state( MediaHandler().ProtoState() ); |
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58 CVtEngStateBase* newState = NULL; |
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59 |
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60 if ( bearerstate != MVtCtlCallControl::EConnected || |
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61 state == MVtProtocolCommand::ESetup ) // <- connect failed |
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62 { |
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63 newState = NewStateL( MVtEngSessionInfo::EClearing ); |
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64 } |
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65 else if ( state == MVtProtocolCommand::EConnected ) |
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66 { |
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67 // change to open state |
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68 newState = NewStateL( MVtEngSessionInfo::EOpen ); |
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69 } |
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70 else if ( state == MVtProtocolCommand::ESetup ) |
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71 { |
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72 // should not usually happen unless connect fails |
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73 newState = NewStateL( MVtEngSessionInfo::EConnected ); |
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74 } |
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75 if ( newState ) |
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76 { |
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77 newState->OpenL( this ); |
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78 } |
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79 __VTPRINTEXIT( "StateNegotiate.Update" ) |
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80 } |
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81 |
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82 // ----------------------------------------------------------------------------- |
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83 // CVtEngStateNegotiating::OpenL |
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84 // State transition to negotiating. |
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85 // (other items were commented in a header). |
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86 // ----------------------------------------------------------------------------- |
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87 // |
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88 void CVtEngStateNegotiating::DoOpenL( ) |
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89 { |
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90 __VTPRINTENTER( "StateNegotiate.Open" ) |
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91 NotifyStateChange( MVtEngSessionInfo::ENegotiating); |
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92 __VTPRINTEXIT( "StateNegotiate.Open" ) |
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93 } |
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94 |
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95 // ----------------------------------------------------------------------------- |
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96 // CVtEngStateNegotiating::ValidateCommand |
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97 // Returns if a command is valid in negotiating state. |
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98 // |
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99 // ----------------------------------------------------------------------------- |
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100 // |
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101 TBool CVtEngStateNegotiating::ValidateCommand( |
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102 const TVtEngCommandId aCommandId ) |
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103 { |
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104 __VTPRINT( DEBUG_DETAIL | DEBUG_GEN, "StateNegotiate.Validate") |
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105 TBool okToPerform( EFalse ); |
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106 switch ( aCommandId ) |
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107 { |
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108 case KVtEngPrepareViewFinder: |
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109 case KVtEngPrepareRemoteRenderDSA: |
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110 case KVtEngPrepareRemoteRenderDP: |
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111 case KVtEngPrepareRemoteRender: |
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112 case KVtEngPrepareRemoteRenderNGA: |
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113 case KVtEngStartRenderRemote: // cached to settings |
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114 case KVtEngSetSource: |
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115 case KVtEngPrepareCamera: |
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116 case KVtEngSetZoomStep: |
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117 case KVtEngStartViewFinder: |
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118 case KVtEngStopViewFinder: |
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119 case KVtEngTerminateSession: |
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120 okToPerform = ETrue; |
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121 break; |
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122 default: |
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123 okToPerform = CVtEngStateBase::ValidateCommand( aCommandId ); |
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124 break; |
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125 } |
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126 return okToPerform; |
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127 } |
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128 |
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129 // ----------------------------------------------------------------------------- |
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130 // CVtEngStateNegotiating::State |
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131 // Returns session state. |
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132 // |
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133 // ----------------------------------------------------------------------------- |
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134 // |
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135 MVtEngSessionInfo::TSessionState CVtEngStateNegotiating::State() const |
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136 { |
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137 return MVtEngSessionInfo::ENegotiating; |
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138 } |
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139 |
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140 // ----------------------------------------------------------------------------- |
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141 // CVtEngStateNegotiating::HandleL |
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142 // Handles an operation when behavior is state dependent. |
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143 // |
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144 // ----------------------------------------------------------------------------- |
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145 // |
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146 TBool CVtEngStateNegotiating::HandleL( CVtEngOperation& aOp ) |
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147 { |
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148 __VTPRINTENTER( "StateNegotiate.HandleL" ) |
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149 TBool handled( CVtEngStateBase::HandleL( aOp ) ); |
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150 if ( !handled ) |
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151 { |
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152 switch ( aOp.Command() ) |
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153 { |
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154 case KVtEngStartRenderRemote: |
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155 SetVideoEnabled( ETrue ); |
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156 handled = ETrue; |
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157 break; |
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158 case KVtEngTerminateSession: |
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159 TerminateSessionL( aOp ); |
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160 break; |
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161 } |
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162 } |
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163 __VTPRINTEXITR( "StateNegotiate.HandleL %d", handled ) |
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164 return handled; |
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165 } |
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166 |
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167 // End of File |