author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:55:47 +0200 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Playlist Plugin Handler |
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* |
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* CMPXPlaylistPluginHandler inherits from CMPXPluginHandlerBase which owns a |
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* CMPXPluginMonitor that monitors playlist plugins. |
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* |
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* CMPXPlaylistPluginHandler also contains a list of loaded playlist plugins. |
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* A playlist plugin is added to the list when it's selected for the first |
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* time. When a new plugin is installed, CMPXPluginMonitor notifies this plugin |
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* handler through CMPXPluginMonitorObserver interface. However, the new plugin |
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* will not be loaded at this time until a client explictly selects this new |
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* plugin. |
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* |
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* When a plugin is uninstalled, CMPXPluginMonitor also notifies this plugin |
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* handler through CMPXPluginMonitorObserver interface. If such plugin is |
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* currently loaded, it will be unloaded and removed from the list. All plugins |
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* are removed when CMPXPlaylistPluginHandler is destroyed. |
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* |
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* |
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*/ |
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|
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#include <bamdesca.h> |
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#include <badesca.h> |
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#include <uri16.h> |
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#include <apgcli.h> |
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|
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#include <mpxlog.h> |
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#include <mpxuser.h> |
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#include <mpxpluginmonitor.h> |
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#include <mpxpluginhandlerobserver.h> |
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#include "mpxplaylistenginedefs.hrh" |
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#include "mpxplaylistpluginhandler.h" |
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#include "mpxplaylistplugin.h" |
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// ============================ MEMBER FUNCTIONS ============================== |
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// ---------------------------------------------------------------------------- |
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// Constructor. |
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// ---------------------------------------------------------------------------- |
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// |
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CMPXPlaylistPluginHandler::CMPXPlaylistPluginHandler( |
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MMPXPlaylistPluginObserver& aPluginObserver, |
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MMPXPluginHandlerObserver& aObserver, |
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RFs& aFs, |
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const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aTopCharacterSet, |
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const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aAvailableCharacterSet) |
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: CMPXPluginHandlerBase(TUid::Uid(KMPXPlaylistInterfaceUid), |
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ESelectionType, |
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EMPXPlaylistTypeM3U, |
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aObserver), |
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iPluginObserver(aPluginObserver), |
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iFs(aFs), |
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iTopCharacterSet(aTopCharacterSet), |
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iAvailableCharacterSet(aAvailableCharacterSet), |
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iPluginUid(KNullUid), |
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iPluginType(EMPXPlaylistTypeUnknown) |
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{ |
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} |
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// ---------------------------------------------------------------------------- |
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// 2nd phase constructor. |
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// ---------------------------------------------------------------------------- |
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// |
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void CMPXPlaylistPluginHandler::ConstructL() |
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{ |
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BaseConstructL(); |
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} |
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// ---------------------------------------------------------------------------- |
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// Two-phased constructor. |
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// ---------------------------------------------------------------------------- |
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// |
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EXPORT_C CMPXPlaylistPluginHandler* CMPXPlaylistPluginHandler::NewL( |
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MMPXPlaylistPluginObserver& aPluginObserver, |
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MMPXPluginHandlerObserver& aObserver, |
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RFs& aFs, |
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const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aTopCharacterSet, |
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const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aAvailableCharacterSet) |
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{ |
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CMPXPlaylistPluginHandler* self = new(ELeave)CMPXPlaylistPluginHandler( |
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aPluginObserver, aObserver, aFs, aTopCharacterSet, aAvailableCharacterSet); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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// ---------------------------------------------------------------------------- |
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// Destructor. |
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// ---------------------------------------------------------------------------- |
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105 |
// |
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EXPORT_C CMPXPlaylistPluginHandler::~CMPXPlaylistPluginHandler() |
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107 |
{ |
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iLoadedPlugins.ResetAndDestroy(); |
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iLoadedPluginsUids.Close(); |
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delete iDisplayName; |
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} |
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112 |
|
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113 |
// ---------------------------------------------------------------------------- |
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// selects a plug-in appropriate for a Uri and data type |
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115 |
// |
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// This is a wrapper method for the base class's SelectPluginL to grant client |
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// access and gives the method name some context. |
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// ---------------------------------------------------------------------------- |
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119 |
// |
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EXPORT_C void CMPXPlaylistPluginHandler::SelectPlaylistPluginL( |
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const TDesC& aUri, |
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const TDesC8& aDataType) |
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123 |
{ |
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MPX_DEBUG2("CMPXPlaylistPluginHandler::SelectPlaylistPluginL( URI: %S, DataType )", &aUri); |
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125 |
|
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ClearSelectionCriteria(); |
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SelectPluginL( aUri, aDataType ); |
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} |
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129 |
|
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130 |
// ---------------------------------------------------------------------------- |
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// selects a plug-in appropriate for a file |
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132 |
// |
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// This is a wrapper method for the base class's SelectPluginL to grant client |
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// access and gives the method name some context. |
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135 |
// ---------------------------------------------------------------------------- |
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136 |
// |
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137 |
EXPORT_C void CMPXPlaylistPluginHandler::SelectPlaylistPluginL(const RFile& aFile) |
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138 |
{ |
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MPX_DEBUG1("CMPXPlaylistPluginHandler::SelectPlaylistPluginL(RFile)"); |
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140 |
|
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ClearSelectionCriteria(); |
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SelectPluginL( aFile ); |
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143 |
} |
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144 |
|
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145 |
// ---------------------------------------------------------------------------- |
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146 |
// selects a plug-in appropriate for a plugin type |
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147 |
// |
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// This is a wrapper method for the base class's SelectPluginL to grant client |
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149 |
// access and gives the method name some context. |
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150 |
// ---------------------------------------------------------------------------- |
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151 |
// |
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152 |
EXPORT_C void CMPXPlaylistPluginHandler::SelectPlaylistPluginL( |
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TUint32 aPluginType) |
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154 |
{ |
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MPX_DEBUG2("CMPXPlaylistPluginHandler::SelectPlaylistPluginL( ParserType: %x )", aPluginType); |
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156 |
|
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SelectPluginL( aPluginType ); |
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158 |
} |
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159 |
|
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160 |
// ---------------------------------------------------------------------------- |
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// selects plug-in with the specified name |
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162 |
// |
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// This is a wrapper method for the base class's SelectPluginL to grant client |
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// access and gives the method name some context. |
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165 |
// ---------------------------------------------------------------------------- |
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166 |
// |
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167 |
EXPORT_C void CMPXPlaylistPluginHandler::SelectPlaylistPluginL( |
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const TDesC& aPluginName) |
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169 |
{ |
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MPX_DEBUG2("CMPXPlaylistPluginHandler::SelectPlaylistPluginL( aPluginName: %S )", &aPluginName); |
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171 |
|
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172 |
SelectPluginL( aPluginName ); |
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173 |
} |
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174 |
|
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175 |
// ---------------------------------------------------------------------------- |
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176 |
// select a plugin with the specific id |
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177 |
// |
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// This is a wrapper method for the base class's SelectPluginL to grant client |
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179 |
// access and gives the method name some context. |
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180 |
// ---------------------------------------------------------------------------- |
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181 |
// |
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182 |
EXPORT_C void CMPXPlaylistPluginHandler::SelectPlaylistPluginL(const TUid& aUid) |
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183 |
{ |
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MPX_DEBUG2("CMPXPlaylistPluginHandler::SelectPlaylistPluginL(UID: %x)", aUid.iUid); |
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185 |
|
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186 |
SelectPluginL( aUid ); |
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} |
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188 |
|
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189 |
// ---------------------------------------------------------------------------- |
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// creates a plugin with the specific id. if already loaded, returns the reference |
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// without recreating it |
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192 |
// ---------------------------------------------------------------------------- |
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193 |
// |
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CMPXPlaylistPlugin* CMPXPlaylistPluginHandler::CreatePlaylistPluginL(const TUid& aUid) |
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195 |
{ |
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MPX_DEBUG2("CMPXPlaylistPluginHandler::CreatePlaylistPluginL(UID: %x)", aUid.iUid); |
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197 |
|
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CMPXPlaylistPlugin* p(NULL); |
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TInt i=iLoadedPluginsUids.Find(aUid); |
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if (i==KErrNotFound) |
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201 |
{ |
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p=CMPXPlaylistPlugin::NewL(aUid, iPluginObserver, iFs, iTopCharacterSet, iAvailableCharacterSet); |
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203 |
CleanupStack::PushL(p); |
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iLoadedPlugins.AppendL(p); |
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TInt err = iLoadedPluginsUids.Append(aUid); |
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206 |
if (err != KErrNone) // if the second append failed, it should revert the first append |
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207 |
{ |
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iLoadedPlugins.Remove(iLoadedPlugins.Count()); |
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User::Leave(err); |
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} |
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CleanupStack::Pop(p); |
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} |
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else |
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{ |
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p=iLoadedPlugins[i]; |
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} |
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return p; |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Resolve a plugin to iPlugin, based on properties (iDataType, iExt and iScheme) |
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// and selection criteria. |
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// ---------------------------------------------------------------------------- |
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// |
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void CMPXPlaylistPluginHandler::ResolvePluginL() |
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{ |
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MPX_DEBUG1("CMPXPlaylistPluginHandler::ResolvePluginL"); |
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|
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// |
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// Resolve plugin |
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// |
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TUid pluginUid( KNullUid ); |
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TInt index( KErrNotFound ); |
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TPtrC displayName; |
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TInt pluginType( EMPXPlaylistTypeUnknown ); |
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236 |
|
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DoResolvePluginL(pluginUid, index, displayName, pluginType ); |
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|
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// |
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// Load resolved plug-in |
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241 |
// |
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CMPXPlaylistPlugin* p = CreatePlaylistPluginL(pluginUid); |
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UsePlugin(pluginUid); |
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|
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if (p != iPlugin) |
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{ |
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iPlugin = p; |
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248 |
|
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iPluginUid = pluginUid; |
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250 |
|
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delete iDisplayName; |
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iDisplayName = NULL; |
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iDisplayName = displayName.AllocL(); |
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254 |
|
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iPluginType = pluginType; |
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} |
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} |
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258 |
|
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// ---------------------------------------------------------------------------- |
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// CMPXPlaylistPluginHandler::IsPluginLoaded |
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// ---------------------------------------------------------------------------- |
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262 |
// |
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TBool CMPXPlaylistPluginHandler::IsPluginLoaded( |
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const TUid& aPluginUid) |
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{ |
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return iLoadedPluginsUids.Find(aPluginUid) != KErrNotFound; |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// CMPXPlaylistPluginHandler::LoadPluginL |
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// ---------------------------------------------------------------------------- |
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272 |
// |
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void CMPXPlaylistPluginHandler::LoadPluginL( |
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const TUid& aPluginUid) |
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{ |
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(void)CreatePlaylistPluginL(aPluginUid); |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// Unloads a specified plugin. |
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// ---------------------------------------------------------------------------- |
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282 |
// |
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void CMPXPlaylistPluginHandler::UnloadPlugin( |
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const TUid& aPluginUid) |
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{ |
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MPX_FUNC("CMPXPlaylistPluginHandler::UnloadPlugin"); |
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TInt i = iLoadedPluginsUids.Find(aPluginUid); |
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if (i != KErrNotFound) |
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289 |
{ |
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UnloadPlugin(i); |
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} |
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} |
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293 |
|
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// ---------------------------------------------------------------------------- |
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// Unloads a plugin by index. |
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// ---------------------------------------------------------------------------- |
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297 |
// |
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void CMPXPlaylistPluginHandler::UnloadPlugin( |
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TInt aIndex) |
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300 |
{ |
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MPX_FUNC("CMPXPlaylistPluginHandler::UnloadPlugin"); |
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302 |
|
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CMPXPlaylistPlugin* p = iLoadedPlugins[aIndex]; |
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if (p == iPlugin) |
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305 |
{ |
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iPlugin = NULL; |
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iPluginUid = KNullUid; |
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iPluginType = EMPXPlaylistTypeUnknown; |
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delete iDisplayName; |
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iDisplayName = NULL; |
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} |
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312 |
|
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iLoadedPlugins.Remove(aIndex); |
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iLoadedPluginsUids.Remove(aIndex); |
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delete p; |
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316 |
} |
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Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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a2952bb97e68
Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
318 |
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