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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 view utility |
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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 <eikenv.h> |
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21 #include <eikapp.h> |
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22 #include <eikappui.h> |
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23 #include <centralrepository.h> |
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24 #include <mpxprivatecrkeys.h> |
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25 |
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26 #include "mpxviewutilitycommanddef.h" |
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27 #include "mpxviewhistory.h" |
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28 #include "mpxviewutilityhelper.h" |
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29 #include "mpxviewutilityimp.h" |
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30 #include "mpxviewpluginhandler.h" |
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31 #include "mpxlog.h" |
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32 |
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33 // CONSTANTS |
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34 _LIT( KMPXDelimiter, ";" ); |
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35 const TInt KMPXMaxHistoryLength( 255 ); |
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36 |
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37 // ======== MEMBER FUNCTIONS ======== |
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38 |
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39 // --------------------------------------------------------------------------- |
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40 // C++ default constructor can NOT contain any code, that |
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41 // might leave. |
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42 // --------------------------------------------------------------------------- |
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43 // |
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44 CMPXViewUtilityImp::CMPXViewUtilityImp() |
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45 { |
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46 // Do nothing |
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47 } |
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48 |
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49 // --------------------------------------------------------------------------- |
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50 // By default Symbian 2nd phase constructor is private. |
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51 // --------------------------------------------------------------------------- |
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52 // |
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53 void CMPXViewUtilityImp::ConstructL() |
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54 { |
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55 iPluginManager = CMPXViewPluginHandler::NewL( this, *this ); |
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56 iCurrentView = CMPXViewHistory::NewL(); |
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57 ConstructDefaultViewHistoryL(); |
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58 } |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // Two-phased constructor. |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 CMPXViewUtilityImp* CMPXViewUtilityImp::NewL() |
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65 { |
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66 CMPXViewUtilityImp* self = new ( ELeave ) CMPXViewUtilityImp(); |
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67 CleanupStack::PushL( self ); |
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68 self->ConstructL(); |
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69 CleanupStack::Pop( self ); |
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70 |
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71 return self; |
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72 } |
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73 |
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74 // --------------------------------------------------------------------------- |
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75 // Destructor |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 CMPXViewUtilityImp::~CMPXViewUtilityImp() |
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79 { |
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80 delete iPreviousView; |
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81 delete iCurrentView; |
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82 delete iDefaultView; |
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83 delete iPluginManager; |
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84 iDefaultHistoryPath.ResetAndDestroy(); |
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85 iCurrentHistoryPath.ResetAndDestroy(); |
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86 |
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87 iObservers.Reset(); |
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88 } |
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89 |
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90 // --------------------------------------------------------------------------- |
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91 // Retrieves view utility from TLS. Creates if it's not there. |
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92 // --------------------------------------------------------------------------- |
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93 // |
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94 MMPXViewUtility* CMPXViewUtilityImp::UtilityL() |
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95 { |
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96 MPX_FUNC( "CMPXViewUtilityImp::UtilityL" ); |
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97 MMPXViewUtility* utility = reinterpret_cast<MMPXViewUtility*>( Dll::Tls() ); |
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98 if ( !utility ) |
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99 { |
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100 utility = CMPXViewUtilityImp::NewL(); |
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101 StoreViewUtility( utility ); |
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102 } |
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103 |
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104 static_cast<CMPXViewUtilityImp*>( utility )->iRefCount++; |
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105 return utility; |
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106 } |
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107 |
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108 // --------------------------------------------------------------------------- |
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109 // Store view utility to TLS. |
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110 // --------------------------------------------------------------------------- |
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111 // |
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112 void CMPXViewUtilityImp::StoreViewUtility( MMPXViewUtility* aUtility ) |
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113 { |
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114 Dll::SetTls( aUtility ); |
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115 } |
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116 |
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117 // --------------------------------------------------------------------------- |
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118 // From MMPXViewUtility |
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119 // This method must be called when the client no longer needs this instance. |
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120 // This object will be destroyed when no one is using it. |
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121 // --------------------------------------------------------------------------- |
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122 // |
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123 void CMPXViewUtilityImp::Close() |
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124 { |
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125 ASSERT( iRefCount > 0 ); |
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126 MPX_FUNC_EX( "CMPXViewUtilityImp::Close" ); |
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127 MPX_DEBUG2( "CMPXViewUtilityImp::Close ref count = %d", iRefCount ); |
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128 if ( --iRefCount == 0 ) |
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129 { |
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130 MPX_DEBUG1( "CMPXViewUtilityImp::Close deleting this" ); |
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131 // last client released |
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132 StoreViewUtility( NULL ); |
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133 delete this; |
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134 } |
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135 } |
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136 |
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137 // --------------------------------------------------------------------------- |
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138 // From MMPXViewUtility |
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139 // Activate view by resolving passed uid. |
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140 // --------------------------------------------------------------------------- |
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141 // |
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142 void CMPXViewUtilityImp::ActivateViewL( |
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143 const TUid& aUid, |
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144 const TDesC* aParam ) |
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145 { |
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146 RArray<TUid> array; |
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147 CleanupClosePushL( array ); |
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148 array.AppendL( aUid ); |
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149 ActivateViewL( array, EFalse, EFalse, aParam ); |
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150 CleanupStack::PopAndDestroy( &array ); |
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151 } |
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152 |
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153 // --------------------------------------------------------------------------- |
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154 // From MMPXViewUtility |
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155 // Activate view by resolving passed uids. |
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156 // --------------------------------------------------------------------------- |
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157 // |
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158 void CMPXViewUtilityImp::ActivateViewL( |
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159 const RArray<TUid>& aUids, |
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160 const TDesC* aParam ) |
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161 { |
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162 ActivateViewL( aUids, EFalse, EFalse, aParam ); |
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163 } |
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164 |
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165 // --------------------------------------------------------------------------- |
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166 // From MMPXViewUtility |
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167 // Activate view as default view, does not bring to foreground. |
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168 // --------------------------------------------------------------------------- |
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169 // |
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170 void CMPXViewUtilityImp::SetAsDefaultViewL( const TUid& aUid ) |
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171 { |
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172 RArray<TUid> array; |
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173 CleanupClosePushL( array ); |
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174 array.AppendL( aUid ); |
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175 SetAsDefaultViewL( array ); |
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176 CleanupStack::PopAndDestroy( &array ); |
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177 } |
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178 |
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179 // --------------------------------------------------------------------------- |
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180 // From MMPXViewUtility |
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181 // Activate view by resolving passed uids. |
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182 // --------------------------------------------------------------------------- |
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183 // |
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184 void CMPXViewUtilityImp::SetAsDefaultViewL( const RArray<TUid>& aUids ) |
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185 { |
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186 TInt count = iCurrentHistoryPath.Count(); |
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187 if ( count > 0 ) |
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188 { |
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189 User::Leave( KErrAlreadyExists ); |
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190 } |
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191 else |
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192 { |
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193 TUid pluginType( KNullUid ); |
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194 TUid pluginImpUid( KNullUid ); |
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195 CMPXViewPlugin* plugin( |
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196 iPluginManager->ResolvePluginL( aUids, pluginType, pluginImpUid ) ); |
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197 |
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198 MPX_DEBUG4( "CMPXViewUtilityImp::SetAsDefaultViewL adding type: 0x%x, impUid: 0x%x, address: 0x%x to current view history", |
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199 pluginType.iUid, pluginImpUid.iUid, plugin ); |
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200 CMPXViewHistory* viewHistory = CMPXViewHistory::NewL( aUids, pluginType, pluginImpUid, plugin ); |
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201 iCurrentHistoryPath.Append( viewHistory ); // iCurrentHistoryPath takes ownership |
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202 delete iCurrentView; |
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203 iCurrentView = NULL; |
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204 iCurrentView = CMPXViewHistory::NewL( viewHistory ); |
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205 delete iDefaultView; |
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206 iDefaultView = NULL; |
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207 iDefaultView = CMPXViewHistory::NewL( viewHistory ); |
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208 |
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209 NotifyObservers( ActiveViewType(), PreviousViewType() ); |
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210 |
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211 MPX_DEBUG2( "CMPXViewUtilityImp::SetAsDefaultViewL activating 0x%x as default view", pluginType.iUid ); |
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212 TRAPD( err, plugin->SetAsDefaultViewL() ); |
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213 if ( err != KErrNone ) |
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214 { |
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215 MPX_DEBUG2( "CMPXViewUtilityImp::SetAsDefaultViewL error duing SetAsDefaultViewL, leaving with code %d", err ); |
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216 // error during activation, clean up view history |
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217 MarkViewAsClosedL( plugin ); |
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218 User::Leave( err ); |
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219 } |
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220 else if ( ActiveViewType() != pluginType ) |
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221 { |
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222 // notify observers again if the view type has changed |
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223 // possibily because ActivateViewL of the plugin is sync |
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224 // and the plugin exited already |
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225 MPX_DEBUG1( "CMPXViewUtilityImp::SetAsDefaultViewL notifying observers again" ); |
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226 NotifyObservers( ActiveViewType(), PreviousViewType() ); |
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227 } |
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228 else |
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229 { |
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230 // nothing to do |
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231 } |
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232 } |
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233 } |
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234 |
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235 // --------------------------------------------------------------------------- |
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236 // From MMPXViewUtility |
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237 // Activate previous view. |
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238 // --------------------------------------------------------------------------- |
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239 // |
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240 void CMPXViewUtilityImp::ActivatePreviousViewL() |
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241 { |
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242 // if can't find default history in cenrep, don't use default history |
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243 if ( iCurrentHistoryPath.Count() > 1 ) |
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244 { |
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245 TBool jump( EFalse ); |
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246 // previousViewType contains a list of view types that needs to be checked |
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247 TUid previousViewType = KNullUid; |
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248 if ( iDefaultHistoryPath.Count() > 0 ) |
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249 { |
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250 // default path exist, check that |
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251 TUid currentViewType( |
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252 iCurrentHistoryPath[ iCurrentHistoryPath.Count() - 1 ]->iPluginType ); |
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253 TInt count( iDefaultHistoryPath.Count() ); |
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254 |
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255 // loop starts at one, since there's no previous view in index 0 |
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256 for ( TInt i = 1; i < count && previousViewType == KNullUid; i++ ) |
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257 { |
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258 if ( iDefaultHistoryPath[ i ]->iPluginType == currentViewType ) |
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259 { |
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260 previousViewType = iDefaultHistoryPath[ i - 1 ]->iPluginType; |
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261 } |
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262 } |
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263 |
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264 if ( previousViewType != KNullUid ) |
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265 { |
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266 jump = ETrue; |
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267 // if previousViewType exist in iCurrentHistoryPath, it's not a jump |
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268 count = iCurrentHistoryPath.Count(); |
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269 for ( TInt i = 0; ( ( i < count ) && ( jump ) ); i++ ) |
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270 { |
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271 if ( iCurrentHistoryPath[ i ]->iPluginType == previousViewType ) |
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272 { |
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273 jump = EFalse; |
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274 } |
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275 } |
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276 MPX_DEBUG2( "CMPXViewUtilityImp::ActivatePreviousViewL activating jump = %d", jump ); |
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277 } |
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278 #ifdef _DEBUG |
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279 else |
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280 { |
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281 // current UID doesn't exist in default path, just follow the current path |
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282 MPX_DEBUG1( "CMPXViewUtilityImp::ActivatePreviousViewL activating current UID doesn't exist in default path" ); |
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283 } |
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284 #endif // _DEBUG |
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285 } |
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286 #ifdef _DEBUG |
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287 else |
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288 { |
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289 // default path doesn't exist, just use current history path |
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290 MPX_DEBUG1( "CMPXViewUtilityImp::ActivatePreviousViewL activating without default history" ); |
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291 } |
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292 #endif // _DEBUG |
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293 RArray<TUid> array; |
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294 CleanupClosePushL( array ); |
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295 TInt lastIndex( iCurrentHistoryPath.Count() - 1 ); |
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296 TBool updatePreviousView( EFalse ); |
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297 TBool activatingPreviousView( EFalse ); |
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298 UpdatePreviousViewInfoL( lastIndex ); |
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299 if ( jump ) |
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300 { |
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301 if ( previousViewType != KNullUid ) |
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302 { |
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303 MPX_DEBUG2( "CMPXViewUtilityImp::ActivatePreviousViewL activating 0x%x jumped", previousViewType.iUid ); |
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304 updatePreviousView = ETrue; |
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305 array.AppendL( previousViewType ); |
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306 } |
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307 } |
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308 else |
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309 { |
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310 TInt count = iCurrentHistoryPath[ lastIndex - 1 ]->iUids.Count(); |
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311 MPX_DEBUG2( "CMPXViewUtilityImp::ActivatePreviousViewL activating not jumped iUid.Count %d", count ); |
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312 for ( TInt i = 0; i < count; i++ ) |
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313 { |
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314 TUid u = iCurrentHistoryPath[ lastIndex - 1 ]->iUids[ i ]; |
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315 MPX_DEBUG2( "CMPXViewUtilityImp::ActivatePreviousViewL activating not jumped, appending 0x%x", u.iUid ); |
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316 array.AppendL( u ); |
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317 } |
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318 activatingPreviousView = ETrue; |
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319 } |
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320 // last index is current view, previous view is at last index - 1 |
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321 delete iCurrentHistoryPath[ lastIndex ]; |
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322 iCurrentHistoryPath.Remove( lastIndex ); |
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323 iCurrentHistoryPath.Compress(); |
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324 ActivateViewL( array, activatingPreviousView, updatePreviousView ); |
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325 CleanupStack::PopAndDestroy( &array ); |
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326 } |
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327 else |
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328 { |
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329 // no history |
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330 User::Leave( KErrNotFound ); |
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331 } |
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332 } |
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333 |
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334 // --------------------------------------------------------------------------- |
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335 // From MMPXViewUtility |
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336 // Pre-load view plug-ins that have KMPXVpFeaturePreLoaded flag set. |
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337 // --------------------------------------------------------------------------- |
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338 // |
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339 void CMPXViewUtilityImp::PreLoadViewsL() |
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340 { |
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341 MPX_FUNC( "CMPXViewUtilityImp::PreLoadViewsL" ); |
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342 PreLoadViewsL( KNullUid ); |
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343 } |
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344 |
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345 // --------------------------------------------------------------------------- |
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346 // From MMPXViewUtility |
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347 // Pre-load view plug-ins that have KMPXVpFeaturePreLoaded flag set and also by resolving UID |
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348 // --------------------------------------------------------------------------- |
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349 // |
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350 void CMPXViewUtilityImp::PreLoadViewsL( const TUid& aUid ) |
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351 { |
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352 MPX_DEBUG2( "CMPXViewUtilityImp::PreLoadViewsL aUid: 0x%x", aUid ); |
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353 RArray<TUid> array; |
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354 CleanupClosePushL( array ); |
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355 |
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356 // Get list of plug-ins that need to be pre-loaded |
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357 iPluginManager->GetPreLoadPluginsL( array, aUid ); |
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358 |
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359 for ( TInt i = array.Count(); --i >= 0; ) |
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360 { |
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361 MPX_DEBUG2( "CMPXViewUtilityImp::PreLoadViewsL loading UID: 0x%x", array[i] ); |
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362 CMPXViewPlugin* plugin = iPluginManager->PluginL( array[i] ); |
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363 plugin->CreateViewL(); |
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364 } |
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365 |
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366 CleanupStack::PopAndDestroy( &array ); |
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367 } |
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368 |
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369 // --------------------------------------------------------------------------- |
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370 // From MMPXViewUtility |
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371 // Pre-load view plug-in by resolving passed uid. |
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372 // --------------------------------------------------------------------------- |
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373 // |
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374 void CMPXViewUtilityImp::PreLoadViewL( const TUid& aUid ) |
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375 { |
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376 TUid pluginType( KNullUid ); |
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377 TUid pluginImpUid( KNullUid ); |
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378 CMPXViewPlugin* plugin( |
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379 iPluginManager->ResolvePluginL( aUid, pluginType, pluginImpUid ) ); |
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380 plugin->CreateViewL(); |
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381 } |
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382 |
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383 // --------------------------------------------------------------------------- |
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384 // From MMPXViewUtility |
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385 // Get a reference to view plugin manager. |
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386 // --------------------------------------------------------------------------- |
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387 // |
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388 MMPXViewPluginManager& CMPXViewUtilityImp::ViewPluginManager() |
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389 { |
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390 return *iPluginManager; |
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391 } |
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392 |
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393 // --------------------------------------------------------------------------- |
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394 // From MMPXViewUtility |
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395 // Constructs default view history |
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396 // --------------------------------------------------------------------------- |
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397 // |
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398 TUid CMPXViewUtilityImp::ConstructDefaultViewHistoryL() |
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399 { |
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400 iDefaultHistoryPath.ResetAndDestroy(); |
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401 delete iDefaultView; |
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402 iDefaultView = NULL; |
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403 |
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404 CRepository* cenRepository = CRepository::NewLC( KCRUidMPXSettings ); |
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405 TBool isEmbedded = CEikonEnv::Static()->StartedAsServerApp(); |
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406 MPX_DEBUG2( "CMPXViewUtilityImp::ConstructDefaultViewHistoryL isEmbedded: %d", isEmbedded ); |
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407 |
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408 // check if embeded mode, if embeded mode use host application uid |
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409 // CAiwGenericParamList |
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410 // if not embeded mode, use app uid |
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411 |
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412 // get default paths |
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413 TUid settingsUid( KNullUid ); |
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414 if ( isEmbedded ) |
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415 { |
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416 // TO-DO: get host UID |
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417 } |
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418 else |
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419 { |
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420 CEikAppUi* appUi = CEikonEnv::Static()->EikAppUi(); |
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421 if ( appUi ) |
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422 { |
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423 CEikApplication* app = appUi->Application(); |
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424 if ( app ) |
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425 { |
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426 settingsUid = app->AppDllUid(); |
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427 } |
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428 } |
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429 } |
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430 TInt ret ( KErrGeneral ); |
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431 HBufC* defaultPath = HBufC::NewLC( KMPXMaxHistoryLength ); |
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432 MPX_DEBUG2( "CMPXViewUtilityImp::ConstructDefaultViewHistoryL trying to read default history from uid 0x%x", settingsUid.iUid ); |
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433 TPtr dPathPtr = defaultPath->Des(); |
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434 ret = cenRepository->Get( settingsUid.iUid, dPathPtr ); |
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435 if ( ret == KErrNone ) |
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436 { |
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437 TPtrC defaultPathPtr( *defaultPath ); |
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438 TInt nextLoc = defaultPathPtr.Find( KMPXDelimiter ); |
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439 TBool defaultSet( EFalse ); |
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440 while ( nextLoc != KErrNotFound ) |
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441 { |
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442 TPtrC currentPath = defaultPathPtr.Left( nextLoc ); |
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443 AddToDefaultViewHistoryL( currentPath ); |
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444 if ( !defaultSet && iDefaultHistoryPath.Count() == 1 ) |
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445 { |
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446 // first entry is the default view |
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447 iDefaultView = CMPXViewHistory::NewL( iDefaultHistoryPath[0] ); |
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448 defaultSet = ETrue; |
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449 } |
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450 defaultPathPtr.Set( defaultPathPtr.Mid( nextLoc + 1 ) ); |
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451 nextLoc = defaultPathPtr.Find( KMPXDelimiter ); |
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452 } |
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453 if ( defaultPathPtr.Length() > 0 ) |
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454 { |
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455 AddToDefaultViewHistoryL( defaultPathPtr ); |
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456 } |
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457 } |
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458 else |
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459 { |
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460 // get default view |
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461 HBufC* defaultView = HBufC::NewLC( KMPXMaxHistoryLength ); |
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462 TPtr dViewPtr = defaultView->Des(); |
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463 ret = cenRepository->Get( KMPXVUCurrentDefaultView, dViewPtr ); |
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464 if ( ret == KErrNone ) |
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465 { |
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466 TPtrC defaultViewPtr( *defaultView ); |
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467 if ( defaultViewPtr.Length() > 0 ) |
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468 { |
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469 TInt nextPos( 0 ); |
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470 TInt err( |
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471 CMPXViewUtilityHelper::ExtractNum( defaultViewPtr, nextPos, ret ) ); |
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472 if ( err == KErrNone ) |
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473 { |
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474 iDefaultView = CMPXViewHistory::NewL(); |
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475 iDefaultView->iPluginType = TUid::Uid( ret ); |
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476 if ( iDefaultHistoryPath.Count() > 0 ) |
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477 { |
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478 TRAP( ret, AddToDefaultViewHistoryL( defaultViewPtr, 0 ) ); |
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479 } |
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480 } |
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481 |
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482 if ( iDefaultHistoryPath.Count() == 0 && err != KErrNone ) |
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483 { |
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484 ret = err; |
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485 } |
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486 } |
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487 } |
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488 CleanupStack::PopAndDestroy( defaultView ); |
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489 } |
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490 CleanupStack::PopAndDestroy( defaultPath ); |
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491 |
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492 // clean up duplicate entries |
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493 TInt count( iDefaultHistoryPath.Count() ); |
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494 TUid previousUid( KNullUid ); |
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495 for ( TInt i = count - 1; i >= 0; i-- ) |
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496 { |
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497 if ( iDefaultHistoryPath[ i ]->iPluginType == previousUid ) |
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498 { |
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499 MPX_DEBUG3( "CMPXViewUtilityImp::ConstructDefaultViewHistoryL removing duplicate entry 0x%x at %d", iDefaultHistoryPath[ i ]->iPluginType.iUid, i ); |
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500 // duplicate entry, remove |
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501 delete iDefaultHistoryPath[ i ]; |
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502 iDefaultHistoryPath.Remove( i ); |
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503 } |
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504 else |
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505 { |
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506 previousUid = iDefaultHistoryPath[ i ]->iPluginType; |
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507 } |
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508 } |
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509 iDefaultHistoryPath.Compress(); |
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510 MPX_DEBUG2( "CMPXViewUtilityImp::ConstructDefaultViewHistoryL after clean up, default path contains %d elements", iDefaultHistoryPath.Count() ); |
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511 |
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512 CleanupStack::PopAndDestroy( cenRepository ); |
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513 return DefaultViewUid(); |
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514 } |
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515 |
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516 // --------------------------------------------------------------------------- |
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517 // Push default history to view history |
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518 // --------------------------------------------------------------------------- |
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519 // |
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520 void CMPXViewUtilityImp::PushDefaultHistoryL() |
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521 { |
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522 MPX_FUNC( "CMPXViewUtilityImp::PushDefaultHistoryL" ); |
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523 TInt count( iDefaultHistoryPath.Count() ); |
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524 iCurrentHistoryPath.ResetAndDestroy(); |
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525 delete iPreviousView; |
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526 iPreviousView = NULL; |
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527 if ( count > 0 ) |
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528 { |
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529 for ( TInt i = 0; i < count; i++ ) |
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530 { |
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531 CMPXViewHistory* viewHistory = CMPXViewHistory::NewL(); |
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532 CleanupStack::PushL( viewHistory ); |
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533 TUid pluginType( iDefaultHistoryPath[ i ]->iPluginType ); |
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534 viewHistory->iPluginType = pluginType; |
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535 viewHistory->iUids.Append( pluginType ); |
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536 viewHistory->iPlugin = NULL; |
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537 iCurrentHistoryPath.Append( viewHistory ); |
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538 CleanupStack::Pop( viewHistory ); |
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539 } |
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540 } |
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541 #ifdef _DEBUG |
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542 else |
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543 { |
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544 MPX_DEBUG1( "CMPXViewUtilityImp::PushDefaultHistoryL default history is not defined, FAILED" ); |
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545 } |
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546 #endif |
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547 } |
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548 |
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549 // --------------------------------------------------------------------------- |
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550 // Gets default view's UID |
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551 // --------------------------------------------------------------------------- |
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552 // |
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553 TUid CMPXViewUtilityImp::DefaultViewUid() |
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554 { |
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555 #ifdef _DEBUG |
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556 if ( iDefaultView ) |
|
557 { |
|
558 MPX_DEBUG2( "CMPXViewUtilityImp::DefaultViewUid = 0x%x", iDefaultView->iPluginType.iUid ); |
|
559 } |
|
560 #endif // _DEBUG |
|
561 return iDefaultView ? iDefaultView->iPluginType : KNullUid; |
|
562 } |
|
563 |
|
564 // --------------------------------------------------------------------------- |
|
565 // Returns the current history depth |
|
566 // --------------------------------------------------------------------------- |
|
567 // |
|
568 TInt CMPXViewUtilityImp::ViewHistoryDepth() |
|
569 { |
|
570 #ifdef _DEBUG |
|
571 TInt count( iCurrentHistoryPath.Count() ); |
|
572 for ( TInt i = 0; i < count; i++ ) |
|
573 { |
|
574 TUid currentPluginType = iCurrentHistoryPath[ i ]->iPluginType; |
|
575 CMPXViewPlugin* plugin = iCurrentHistoryPath[ i ]->iPlugin; |
|
576 MPX_DEBUG4( "CMPXViewUtilityImp::ViewHistoryDepth (%d) type = 0x%x, address = 0x%x", i, currentPluginType.iUid, plugin ); |
|
577 } |
|
578 #endif |
|
579 return iCurrentHistoryPath.Count(); |
|
580 } |
|
581 |
|
582 // --------------------------------------------------------------------------- |
|
583 // Returns the last activated view type |
|
584 // --------------------------------------------------------------------------- |
|
585 // |
|
586 TUid CMPXViewUtilityImp::PreviousViewType() |
|
587 { |
|
588 #ifdef _DEBUG |
|
589 if ( iPreviousView ) |
|
590 { |
|
591 MPX_DEBUG2( "CMPXViewUtilityImp::PreviousViewType = 0x%x", iPreviousView->iPluginType.iUid ); |
|
592 } |
|
593 #endif // _DEBUG |
|
594 return iPreviousView ? iPreviousView->iPluginType : KNullUid; |
|
595 } |
|
596 |
|
597 // --------------------------------------------------------------------------- |
|
598 // Returns the current activated view type |
|
599 // --------------------------------------------------------------------------- |
|
600 // |
|
601 TUid CMPXViewUtilityImp::ActiveViewType() |
|
602 { |
|
603 #ifdef _DEBUG |
|
604 if ( iCurrentView ) |
|
605 { |
|
606 MPX_DEBUG2( "CMPXViewUtilityImp::ActiveViewType = 0x%x", iCurrentView->iPluginType.iUid ); |
|
607 } |
|
608 #endif // _DEBUG |
|
609 return iCurrentView ? iCurrentView->iPluginType : KNullUid; |
|
610 } |
|
611 |
|
612 // --------------------------------------------------------------------------- |
|
613 // Returns the current activated view type |
|
614 // --------------------------------------------------------------------------- |
|
615 // |
|
616 TUid CMPXViewUtilityImp::ActiveViewImplementationUid() |
|
617 { |
|
618 #ifdef _DEBUG |
|
619 MPX_DEBUG1( "-->CMPXViewUtilityImp::ActiveViewImplementationUid" ); |
|
620 if( iCurrentView && |
|
621 ( iCurrentView->iPluginImplementationUid != KNullUid ) ) |
|
622 { |
|
623 MPX_DEBUG2( "CMPXViewUtilityImp::ActiveViewImplementationUid = 0x%x", |
|
624 iCurrentView->iPluginImplementationUid.iUid ); |
|
625 } |
|
626 else |
|
627 { |
|
628 MPX_DEBUG1( "CMPXViewUtilityImp::ActiveViewImplementationUid - active view implementation uid not resolved yet" ); |
|
629 } |
|
630 MPX_DEBUG1( "<--CMPXViewUtilityImp::ActiveViewImplementationUid" ); |
|
631 #endif // _DEBUG |
|
632 return iCurrentView ? iCurrentView->iPluginImplementationUid : KNullUid; |
|
633 } |
|
634 |
|
635 // --------------------------------------------------------------------------- |
|
636 // Add observer. |
|
637 // --------------------------------------------------------------------------- |
|
638 // |
|
639 void CMPXViewUtilityImp::AddObserverL( |
|
640 MMPXViewActivationObserver* aObserver ) |
|
641 { |
|
642 if ( aObserver ) |
|
643 { |
|
644 iObservers.AppendL( aObserver ); |
|
645 } |
|
646 } |
|
647 |
|
648 // --------------------------------------------------------------------------- |
|
649 // Remove observer. |
|
650 // --------------------------------------------------------------------------- |
|
651 // |
|
652 void CMPXViewUtilityImp::RemoveObserver( |
|
653 MMPXViewActivationObserver* aObserver ) |
|
654 { |
|
655 TInt index = iObservers.Find( aObserver ); |
|
656 ASSERT( index >= 0 ); |
|
657 if ( index >= 0 ) |
|
658 { |
|
659 iObservers.Remove( index ); |
|
660 } |
|
661 } |
|
662 |
|
663 // --------------------------------------------------------------------------- |
|
664 // Handle custom commands. |
|
665 // --------------------------------------------------------------------------- |
|
666 // |
|
667 void CMPXViewUtilityImp::HandleCustomCommand( |
|
668 const TUid& aUid, |
|
669 const TInt aCommand, |
|
670 const TDesC8& aData ) |
|
671 { |
|
672 MPX_FUNC( "CMPXViewUtilityImp::HandleCustomCommand" ); |
|
673 if ( aUid.iUid == KMPXViewUtilityCustomCommand ) |
|
674 { |
|
675 switch ( aCommand ) |
|
676 { |
|
677 case EMPXViewUtilCmdViewActivated: |
|
678 { |
|
679 // TO-DO |
|
680 break; |
|
681 } |
|
682 case EMPXViewUtilCmdViewDeActivated: |
|
683 { |
|
684 MPX_DEBUG1( "CMPXViewUtilityImp::HandleCustomCommand EMPXViewUtilCmdViewDeActivated" ); |
|
685 // aData contains the pointer to the view |
|
686 if ( aData.Length() > 0 ) |
|
687 { |
|
688 TPckgBuf<TInt> buf( KErrNotFound ); |
|
689 buf.Copy( aData ); |
|
690 TInt viewPtr = buf(); |
|
691 MPX_DEBUG2( "CMPXViewUtilityImp::HandleCustomCommand EMPXViewUtilCmdViewDeActivated address = 0x%x", viewPtr ); |
|
692 CMPXViewPlugin* piPtr = reinterpret_cast<CMPXViewPlugin*>( viewPtr ); |
|
693 TRAP_IGNORE( MarkViewAsClosedL( piPtr ) ); |
|
694 } |
|
695 break; |
|
696 } |
|
697 default: |
|
698 { |
|
699 break; |
|
700 } |
|
701 } |
|
702 } |
|
703 } |
|
704 |
|
705 // --------------------------------------------------------------------------- |
|
706 // CMPXViewUtilityImp::HandlePluginHandlerEvent |
|
707 // --------------------------------------------------------------------------- |
|
708 // |
|
709 void CMPXViewUtilityImp::HandlePluginHandlerEvent( |
|
710 TPluginHandlerEvents aEvent, |
|
711 const TUid& aPluginUid, |
|
712 TInt aLoaded, |
|
713 TInt aData) |
|
714 { |
|
715 MPX_FUNC("CMPXViewUtilityImp::HandlePluginHandlerEvent"); |
|
716 |
|
717 switch (aEvent) |
|
718 { |
|
719 case EPluginAdd: |
|
720 { |
|
721 NotifyViewUpdate(aPluginUid, MMPXViewActivationObserver::EViewPluginAdd, |
|
722 aLoaded, aData); |
|
723 break; |
|
724 } |
|
725 case EPluginUpdateStart: |
|
726 { |
|
727 NotifyViewUpdate(aPluginUid, MMPXViewActivationObserver::EViewPluginUpdate, |
|
728 aLoaded, aData); |
|
729 break; |
|
730 } |
|
731 case EPluginRemove: |
|
732 { |
|
733 NotifyViewUpdate(aPluginUid, MMPXViewActivationObserver::EViewPluginRemove, |
|
734 aLoaded, aData); |
|
735 break; |
|
736 } |
|
737 case EPluginUpdateEnd: |
|
738 { |
|
739 // do nothing |
|
740 break; |
|
741 } |
|
742 } |
|
743 } |
|
744 |
|
745 // --------------------------------------------------------------------------- |
|
746 // Activate view by resolving passed uids. |
|
747 // --------------------------------------------------------------------------- |
|
748 // |
|
749 void CMPXViewUtilityImp::ActivateViewL( |
|
750 const RArray<TUid>& aUids, |
|
751 TBool aIsActivatingPreviousView, |
|
752 TBool aUpdatedPreviousView, |
|
753 const TDesC* aParam ) |
|
754 { |
|
755 TUid pluginType( KNullUid ); |
|
756 TUid pluginImpUid( KNullUid ); |
|
757 CMPXViewPlugin* plugin( |
|
758 iPluginManager->ResolvePluginL( aUids, pluginType, pluginImpUid ) ); |
|
759 CMPXViewPlugin* currentPlugin( NULL ); |
|
760 |
|
761 // if the resolved view is already activated |
|
762 TInt count = iCurrentHistoryPath.Count(); |
|
763 TUid currentPluginType( KNullUid ); |
|
764 if ( count > 0 ) |
|
765 { |
|
766 currentPluginType = iCurrentHistoryPath[ count - 1 ]->iPluginType; |
|
767 currentPlugin = iCurrentHistoryPath[ count - 1 ]->iPlugin; |
|
768 } |
|
769 |
|
770 if ( ( currentPluginType != pluginType ) || ( currentPlugin != plugin ) || |
|
771 ( aIsActivatingPreviousView ) ) |
|
772 { |
|
773 if ( ( pluginType != KNullUid ) && ( !aIsActivatingPreviousView ) ) |
|
774 { |
|
775 if ( !aUpdatedPreviousView ) |
|
776 { |
|
777 if ( count > 0 ) |
|
778 { |
|
779 UpdatePreviousViewInfoL( KErrNotFound ); |
|
780 } |
|
781 } |
|
782 |
|
783 // check if the view has been activated before |
|
784 TInt index( FindCurrentHistoryEntryByTypeL( pluginType ) ); |
|
785 if ( index != KErrNotFound ) |
|
786 { |
|
787 // cleanup, count down |
|
788 for ( TInt i = count - 1; i > index; i-- ) |
|
789 { |
|
790 MPX_DEBUG2( "CMPXViewUtilityImp::ActivateViewL removing entry %d", i ); |
|
791 delete iCurrentHistoryPath[ i ]; |
|
792 iCurrentHistoryPath.Remove( i ); |
|
793 } |
|
794 iCurrentHistoryPath.Compress(); |
|
795 |
|
796 // update the uids used to activate this view |
|
797 CMPXViewHistory* vh( iCurrentHistoryPath[ index ] ); |
|
798 vh->iPlugin = plugin; |
|
799 vh->iUids.Reset(); |
|
800 TInt uidCount( aUids.Count() ); |
|
801 for ( TInt i = 0; i < uidCount; i++ ) |
|
802 { |
|
803 TUid u = aUids[ i ]; |
|
804 vh->iUids.Append( u ); |
|
805 } |
|
806 } |
|
807 else |
|
808 { |
|
809 MPX_DEBUG3( "CMPXViewUtilityImp::ActivateViewL adding type: 0x%x, address: 0x%x to current view history", pluginType.iUid, plugin ); |
|
810 CMPXViewHistory* viewHistory = CMPXViewHistory::NewL(); |
|
811 CleanupStack::PushL( viewHistory ); |
|
812 TInt uidCount( aUids.Count() ); |
|
813 for ( TInt i = 0; i < uidCount; i++ ) |
|
814 { |
|
815 TUid u = aUids[ i ]; |
|
816 viewHistory->iUids.Append( u ); |
|
817 } |
|
818 viewHistory->iPlugin = plugin; |
|
819 viewHistory->iPluginType = pluginType; |
|
820 viewHistory->iPluginImplementationUid = pluginImpUid; |
|
821 iCurrentHistoryPath.Append( viewHistory ); |
|
822 CleanupStack::Pop( viewHistory ); |
|
823 } |
|
824 } |
|
825 MPX_DEBUG2( "CMPXViewUtilityImp::ActivateViewL activating 0x%x", pluginType.iUid ); |
|
826 |
|
827 if ( plugin != iCurrentView->iPlugin ) |
|
828 { |
|
829 delete iCurrentView; |
|
830 iCurrentView = NULL; |
|
831 iCurrentView = CMPXViewHistory::NewL( aUids, pluginType, pluginImpUid, plugin ); |
|
832 // Notify observers for view activation, ActivateViewL maybe sync |
|
833 // and won't return until the view is closed |
|
834 NotifyObservers( ActiveViewType(), PreviousViewType() ); |
|
835 TRAPD( err, plugin->ActivateViewL( aParam ) ); |
|
836 if ( err != KErrNone ) |
|
837 { |
|
838 MPX_DEBUG2( "CMPXViewUtilityImp::ActivateViewL error duing ActivateViewL, leaving with code %d", err ); |
|
839 // error during view activation, clean up view history |
|
840 MarkViewAsClosedL( plugin ); |
|
841 User::Leave( err ); |
|
842 } |
|
843 } |
|
844 else |
|
845 { |
|
846 MPX_DEBUG2( "CMPXViewUtilityImp::ActivateViewL view 0x%x already activated, ignoring", pluginType.iUid ); |
|
847 } |
|
848 } |
|
849 else |
|
850 { |
|
851 MPX_DEBUG2( "CMPXViewUtilityImp::ActivateViewL view 0x%x already activated, ignoring", pluginType.iUid ); |
|
852 } |
|
853 } |
|
854 |
|
855 // --------------------------------------------------------------------------- |
|
856 // Marks the view closed. This does not actually close the view. |
|
857 // --------------------------------------------------------------------------- |
|
858 // |
|
859 void CMPXViewUtilityImp::MarkViewAsClosedL( CMPXViewPlugin* aPlugin ) |
|
860 { |
|
861 MPX_DEBUG2( "CMPXViewUtilityImp::MarkViewAsClosedL called 0x%x", aPlugin ); |
|
862 TInt count = iCurrentHistoryPath.Count(); |
|
863 TBool removed( EFalse ); |
|
864 // Count down, counting up and removing items is bad |
|
865 for ( TInt i = count - 1; i >= 0 && !removed ; i-- ) |
|
866 { |
|
867 if ( iCurrentHistoryPath[ i ]->iPlugin == aPlugin ) |
|
868 { |
|
869 MPX_DEBUG2( "CMPXViewUtilityImp::MarkViewAsClosedL removing location %d", i ); |
|
870 UpdatePreviousViewInfoL( i ); |
|
871 |
|
872 delete iCurrentView; |
|
873 iCurrentView = NULL; |
|
874 if ( i > 0 ) |
|
875 { |
|
876 iCurrentView = CMPXViewHistory::NewL( |
|
877 iCurrentHistoryPath[ ( i != count - 1 ) ? count - 1 : i - 1 ] ); |
|
878 } |
|
879 |
|
880 // match found, remove it from history |
|
881 delete iCurrentHistoryPath[ i ]; |
|
882 iCurrentHistoryPath.Remove( i ); |
|
883 removed = ETrue; |
|
884 |
|
885 // Notify observers for view activation, ActivateViewL maybe sync |
|
886 // and won't return until the view is closed |
|
887 NotifyObservers( ActiveViewType(), PreviousViewType() ); |
|
888 } |
|
889 } |
|
890 if ( removed ) |
|
891 { |
|
892 iCurrentHistoryPath.Compress(); |
|
893 } |
|
894 #ifdef _DEBUG |
|
895 else |
|
896 { |
|
897 MPX_DEBUG1( "CMPXViewUtilityImp::MarkViewAsClosedL Nothing removed" ); |
|
898 } |
|
899 #endif |
|
900 } |
|
901 |
|
902 // ----------------------------------------------------------------------------- |
|
903 // Notify observers for view activation |
|
904 // ----------------------------------------------------------------------------- |
|
905 // |
|
906 void CMPXViewUtilityImp::NotifyObservers( |
|
907 const TUid& aCurrentViewType, |
|
908 const TUid& aPreviousViewType ) |
|
909 { |
|
910 MPX_FUNC( "CMPXViewUtilityImp::NotifyObservers" ); |
|
911 MPX_DEBUG3( "CMPXViewUtilityImp::NotifyObservers current: 0x%x, previous: 0x%x", aCurrentViewType.iUid, aPreviousViewType.iUid ); |
|
912 TInt count( iObservers.Count() ); |
|
913 for ( TInt i = 0; i < count; i++ ) |
|
914 { |
|
915 iObservers[i]->HandleViewActivation( |
|
916 aCurrentViewType, |
|
917 aPreviousViewType ); |
|
918 } |
|
919 } |
|
920 |
|
921 // ----------------------------------------------------------------------------- |
|
922 // Notify observers of a view update event |
|
923 // ----------------------------------------------------------------------------- |
|
924 // |
|
925 void CMPXViewUtilityImp::NotifyViewUpdate( |
|
926 const TUid& aViewUid, |
|
927 MMPXViewActivationObserver::TViewUpdateEvent aUpdateEvent, |
|
928 TBool aLoaded, |
|
929 TInt aVersion /* = 0 */) |
|
930 { |
|
931 MPX_FUNC( "CMPXViewUtilityImp::NotifyViewUpdate" ); |
|
932 |
|
933 TInt count(iObservers.Count()); |
|
934 for (TInt i = 0; i < count; ++i) |
|
935 { |
|
936 iObservers[i]->HandleViewUpdate(aViewUid, aUpdateEvent, aLoaded, aVersion); |
|
937 } |
|
938 } |
|
939 |
|
940 // --------------------------------------------------------------------------- |
|
941 // Insert/Append to default view history array |
|
942 // --------------------------------------------------------------------------- |
|
943 // |
|
944 TInt CMPXViewUtilityImp::AddToDefaultViewHistoryL( |
|
945 const TDesC& aData, TInt aLoc ) |
|
946 { |
|
947 TInt result( KErrGeneral ); |
|
948 TInt nextPos( 0 ); |
|
949 User::LeaveIfError( CMPXViewUtilityHelper::ExtractNum( aData, nextPos, result ) ); |
|
950 CMPXViewHistory* viewHistory = CMPXViewHistory::NewL(); |
|
951 CleanupStack::PushL( viewHistory ); |
|
952 viewHistory->iPluginType.iUid = result; |
|
953 if ( aLoc == -1 ) |
|
954 { |
|
955 MPX_DEBUG2( "CMPXViewUtilityImp::AddToDefaultViewHistoryL Appending 0x%x to default view history", result ); |
|
956 User::LeaveIfError( iDefaultHistoryPath.Append( viewHistory ) ); |
|
957 } |
|
958 else |
|
959 { |
|
960 MPX_DEBUG3( "CMPXViewUtilityImp::AddToDefaultViewHistoryL Inserting 0x%x to default view history at %d", result, aLoc ); |
|
961 User::LeaveIfError( iDefaultHistoryPath.Insert( viewHistory, aLoc ) ); |
|
962 } |
|
963 CleanupStack::Pop( viewHistory ); |
|
964 return result; |
|
965 } |
|
966 |
|
967 // --------------------------------------------------------------------------- |
|
968 // Updates previous view info |
|
969 // --------------------------------------------------------------------------- |
|
970 // |
|
971 void CMPXViewUtilityImp::UpdatePreviousViewInfoL( TInt aIndex ) |
|
972 { |
|
973 MPX_FUNC( "CMPXViewUtilityImp::UpdatePreviousViewInfoL" ); |
|
974 delete iPreviousView; |
|
975 iPreviousView = NULL; |
|
976 if ( aIndex != KErrNotFound ) |
|
977 { |
|
978 TInt currentHistoryCount = iCurrentHistoryPath.Count(); |
|
979 if ( ( currentHistoryCount > aIndex ) && ( aIndex >= 0 ) ) |
|
980 { |
|
981 iPreviousView = CMPXViewHistory::NewL( iCurrentHistoryPath[ aIndex ] ); |
|
982 iPreviousView->iPlugin = NULL; |
|
983 MPX_DEBUG2( "CMPXViewUtilityImp::UpdatePreviousViewInfoL previous view type 0x%x", iPreviousView->iPluginType.iUid ); |
|
984 } |
|
985 } |
|
986 else |
|
987 { |
|
988 delete iPreviousView; |
|
989 iPreviousView = NULL; |
|
990 iPreviousView = CMPXViewHistory::NewL( iCurrentView ); |
|
991 } |
|
992 } |
|
993 |
|
994 // --------------------------------------------------------------------------- |
|
995 // Find if the view exist in current history |
|
996 // --------------------------------------------------------------------------- |
|
997 // |
|
998 TInt CMPXViewUtilityImp::FindCurrentHistoryEntryByTypeL( const TUid aType ) |
|
999 { |
|
1000 TInt count = iCurrentHistoryPath.Count(); |
|
1001 TInt index = KErrNotFound; |
|
1002 for ( TInt i = 0; i < count && index == KErrNotFound; i++ ) |
|
1003 { |
|
1004 if ( iCurrentHistoryPath[ i ]->iPluginType == aType ) |
|
1005 { |
|
1006 index = i; |
|
1007 } |
|
1008 } |
|
1009 return index; |
|
1010 } |
|
1011 |
|
1012 // End of File |