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: Remcon bearer observer implementation |
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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 |
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20 #include <e32def.h> |
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21 #include <e32cmn.h> |
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22 #include <coreapplicationuisdomainpskeys.h> |
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23 |
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24 #include "hidremconbearerinternalpskeys.h" |
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25 #include "hidremconbearerobserver.h" |
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26 #include "debug.h" |
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27 // ======== MEMBER FUNCTIONS ======== |
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28 // |
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29 // --------------------------------------------------------------------------- |
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30 // CHidRemconBearerObserver::NewL() |
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31 // Constructs a new entry with given values. |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 CHidRemconBearerObserver* CHidRemconBearerObserver::NewL( |
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35 MCallBackReceiver& aCallback, TInt aKeyType ) |
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36 { |
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37 CHidRemconBearerObserver* self = new ( ELeave ) CHidRemconBearerObserver( |
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38 aCallback ); |
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39 CleanupStack::PushL( self ); |
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40 self->ConstructL( aKeyType ); |
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41 CleanupStack::Pop(); |
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42 return self; |
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43 } |
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44 // --------------------------------------------------------------------------- |
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45 // CHidRemconBearerObserver::CHidRemconBearerObserver() |
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46 // C++ constructor |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 CHidRemconBearerObserver::CHidRemconBearerObserver( |
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50 MCallBackReceiver& aCallback ) : |
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51 CActive( EPriorityStandard ), iCallback( aCallback ) |
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52 { |
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53 //Pass |
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54 TRACE_FUNC |
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55 } |
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56 // --------------------------------------------------------------------------- |
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57 // CHidRemconBearerObserver::CHidRemconBearerObserver() |
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58 // Destructor |
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59 // --------------------------------------------------------------------------- |
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60 // |
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61 CHidRemconBearerObserver::~CHidRemconBearerObserver() |
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62 { |
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63 TRACE_FUNC |
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64 Stop(); |
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65 if ( iProperty.Handle() != KNullHandle ) |
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66 { |
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67 iProperty.Close(); |
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68 } |
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69 } |
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70 // --------------------------------------------------------------------------- |
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71 // CHidRemconBearerObserver::ConstructL() |
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72 // Symbian OS default constructor |
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73 // --------------------------------------------------------------------------- |
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74 // |
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75 void CHidRemconBearerObserver::ConstructL( TInt aKeyType ) |
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76 { |
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77 TRACE_FUNC |
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78 iKeyType = aKeyType; |
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79 // Add this active object to the scheduler. |
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80 CActiveScheduler::Add( this ); |
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81 switch ( iKeyType ) |
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82 { |
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83 case EMediaKeys: |
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84 User::LeaveIfError( iProperty.Attach( KPSUidHidEventNotifier, |
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85 KHidControlKeyEvent ) ); |
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86 break; |
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87 case EAccessoryVolumeKeys: |
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88 User::LeaveIfError( iProperty.Attach( KPSUidHidEventNotifier, |
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89 KHidAccessoryVolumeEvent ) ); |
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90 break; |
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91 case EMuteKey: |
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92 User::LeaveIfError( iProperty.Attach( KPSUidHidEventNotifier, |
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93 KHidMuteKeyEvent ) ); |
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94 break; |
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95 case EHookKeys: |
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96 User::LeaveIfError( iProperty.Attach( KPSUidHidEventNotifier, |
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97 KHidHookKeyEvent ) ); |
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98 break; |
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99 default: |
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100 User::Leave( KErrArgument ); |
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101 } |
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102 Start(); |
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103 } |
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104 // --------------------------------------------------------------------------- |
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105 // CHidRemconBearerObserver::Start() |
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106 // Starts listening KUidCurrentCall event |
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107 // --------------------------------------------------------------------------- |
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108 // |
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109 TInt CHidRemconBearerObserver::Start() |
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110 { |
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111 TRACE_FUNC |
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112 if ( IsActive() ) |
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113 { |
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114 return KErrInUse; |
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115 } |
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116 iStatus = KRequestPending; |
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117 iProperty.Subscribe( iStatus ); |
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118 SetActive(); |
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119 return KErrNone; |
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120 } |
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121 // --------------------------------------------------------------------------- |
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122 // CHidRemconBearerObserver::Stop() |
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123 // Stops listening KUidCurrentCall event |
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124 // --------------------------------------------------------------------------- |
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125 // |
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126 void CHidRemconBearerObserver::Stop() |
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127 { |
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128 TRACE_FUNC |
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129 Cancel(); |
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130 } |
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131 // --------------------------------------------------------------------------- |
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132 // CHidRemconBearerObserver::RunL() |
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133 // --------------------------------------------------------------------------- |
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134 // |
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135 void CHidRemconBearerObserver::RunL() |
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136 { |
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137 TInt scanCode; |
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138 TInt ret = 0; |
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139 ret = iProperty.Get( scanCode ); |
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140 if ( ret == KErrNone ) |
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141 { |
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142 // If this Active Object is for receiving the USB MTP status, the |
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143 // scanCode varibale contains the status whether transfer is |
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144 // happening now(active) or not(not active). |
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145 iCallback.ReceivedKeyEvent( scanCode, iKeyType ); |
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146 } |
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147 } |
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148 // --------------------------------------------------------------------------- |
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149 // CHidRemconBearerObserver::DoCancel() |
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150 // Cancels event listening |
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151 // --------------------------------------------------------------------------- |
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152 // |
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153 void CHidRemconBearerObserver::DoCancel() |
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154 { |
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155 iProperty.Cancel(); |
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156 } |
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