1 /*

     2 * Copyright (c) 2010 Ixonos Plc.

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - Initial contribution

    11 *

    12 * Contributors:

    13 * Ixonos Plc

    14 *

    15 * Description:  

    16 *

    17 */

    18 

    19 

    20 

    21 // INCLUDES

    22 #include <s32file.h>

    23 #include <bautils.h>

    24 #include <eikenv.h>

    25 

    26 #include "ImageEditorPluginLocator.h"

    27 #include "ImageEditorPluginScanner.h"

    28 #include "ImageEditorPluginStorage.h"

    29 #include "PluginInfo.h"

    30 #include "ImageEditorUIDs.hrh"

    31 

    32 // CONSTANTS

    33 _LIT( KPluginStorageExternalizeFile, "c:\\private\\101FFA91\\PluginStorage.ini");

    34 

    35 

    36 //=============================================================================

    37 EXPORT_C CPluginLocator * CPluginLocator::NewL ()

    38 {

    39 	CPluginLocator * self = new (ELeave) CPluginLocator;

    40 	CleanupStack::PushL (self);

    41 	self->ConstructL ();

    42 	CleanupStack::Pop (); // self

    43 	return self;

    44 }

    45 

    46 //=============================================================================

    47 EXPORT_C CPluginLocator::~CPluginLocator ()

    48 {

    49 	delete iScanner;

    50 	delete iStorage;

    51 }

    52 

    53 //=============================================================================

    54 EXPORT_C void CPluginLocator::ScanPluginsL ()

    55 {

    56     LOG(KImageEditorLogFile, "CPluginLocator: Scanning plugins");

    57 

    58     ASSERT( iScanner );

    59     ASSERT( iStorage );

    60 

    61     //	Internalize the plug-in storage

    62     RFs& fs = CEikonEnv::Static()->FsSession();

    63     BaflUtils::EnsurePathExistsL( fs, KPluginStorageExternalizeFile() );

    64     if( BaflUtils::FileExists(fs, KPluginStorageExternalizeFile()) )

    65     {

    66         RFileReadStream stream;

    67         stream.PushL();

    68 

    69         LOGFMT(KImageEditorLogFile, "CPluginLocator: Internalizing plug-in storage from %S", &KPluginStorageExternalizeFile());

    70 

    71         User::LeaveIfError (

    72             stream.Open (

    73             fs,

    74             KPluginStorageExternalizeFile(),

    75             EFileRead | EFileShareReadersOnly

    76             ));

    77 

    78         stream >> *iStorage;

    79 

    80         stream.Release();

    81         stream.Pop();

    82     }

    83     

    84     // Scan for plug-ins

    85     TBool pluginStorageNeedsUpdate = EFalse;

    86 	iScanner->ScanPluginsL ( pluginStorageNeedsUpdate );

    87 

    88     // If the plugin content has changed compared to the previously

    89     // internalized one, we need to externalize the plug-in storage

    90     if( pluginStorageNeedsUpdate )

    91     {

    92         LOGFMT(KImageEditorLogFile, "CPluginLocator: Externalizing plug-in storage to %S", &KPluginStorageExternalizeFile());

    93 

    94         RFileWriteStream stream;

    95         stream.PushL();

    96 

    97         User::LeaveIfError (

    98             stream.Replace (

    99             fs,

   100             KPluginStorageExternalizeFile(),

   101             EFileWrite

   102             ));

   103 

   104         stream << *iStorage;

   105 

   106         stream.Close();

   107         stream.Pop();

   108     }

   109 

   110     // iScanner is not needed after this

   111     delete iScanner;

   112     iScanner = NULL;

   113 }

   114 

   115 //=============================================================================

   116 EXPORT_C TInt CPluginLocator::CountPlugins() const

   117 {

   118 	return iStorage->CountPlugins();

   119 }

   120 

   121 //=============================================================================

   122 EXPORT_C CPluginInfo * CPluginLocator::GetPluginInfo (const TInt aID)

   123 {

   124     return iStorage->GetPluginInfo (aID);

   125 }

   126 

   127 //=============================================================================

   128 CPluginLocator::CPluginLocator ()

   129 {

   130 

   131 }

   132 

   133 //=============================================================================

   134 void CPluginLocator::ConstructL ()

   135 {

   136     LOG(KImageEditorLogFile, "CPluginLocator: Creating locator");

   137 

   138 	//	Create a new plug-in storage

   139 	iStorage = CPluginStorage::NewL ();

   140 

   141 	//	Create a new plug-in locator

   142 	iScanner = CPluginScanner::NewL ();

   143 

   144 	//	Set storage

   145 	iScanner->SetPluginStorage (iStorage);

   146 }

   147 

   148 // End of File