--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/filemanager/GFLM/inc/CGflmFileRecognizer.h Wed Sep 01 12:31:07 2010 +0100
@@ -0,0 +1,180 @@
+/*
+* Copyright (c) 2002-2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0""
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Recogniser wrapper
+*
+*/
+
+
+
+#ifndef CGFLMFILERECOGNIZER_H
+#define CGFLMFILERECOGNIZER_H
+
+
+// INCLUDES
+#include <apgcli.h>
+#include <e32base.h>
+#include <barsc.h>
+
+
+// FORWARD DECLARATIONS
+class CGflmDriveResolver;
+
+
+// CLASS DECLARATION
+
+/**
+* A class for wrapping recogniser functionality.
+*
+* @lib GFLM.lib
+* @since 2.0
+*/
+NONSHARABLE_CLASS(CGflmFileRecognizer) : public CBase
+ {
+ public: // Constructors and destructor
+
+ /**
+ * Two-phased constructor.
+ */
+ static CGflmFileRecognizer* NewL(
+ RFs& aFs,
+ TInt aMemoryConsumption,
+ CGflmDriveResolver* aDriveResolver );
+
+ /**
+ * Destructor.
+ */
+ virtual ~CGflmFileRecognizer();
+
+ public: // New functions
+
+ /**
+ * Recognises a MIME type of file.
+ * @since S60 3.1
+ * @param aFilename A name of the file
+ * @return Pointer to MIME type. KNullDesC if not recognised.
+ */
+ TPtrC RecognizeL( const TDesC& aFilename );
+
+ /**
+ * Flushed recogniser cache.
+ * @since S60 3.1
+ */
+ void FlushCache();
+
+ private:
+
+ NONSHARABLE_CLASS(CPathTypePair) : public CBase
+ {
+ public:
+ static CPathTypePair* NewLC( const TDesC& aFilename );
+ void ConstructL( const TDesC& aFilename );
+ CPathTypePair();
+ ~CPathTypePair();
+ TInt Size() const;
+
+ public:
+ TDblQueLink iLink;
+ TInt iTypeIndex;
+ HBufC* iFilename;
+ };
+
+ NONSHARABLE_CLASS(CExtMimePair) : public CBase
+ {
+ public:
+ ~CExtMimePair();
+
+ public:
+ HBufC* iExt;
+ HBufC* iMime;
+ };
+
+ /**
+ * C++ default constructor.
+ */
+ CGflmFileRecognizer(
+ CGflmDriveResolver* aDriveResolver,
+ RFs& aFs );
+
+ /**
+ * By default Symbian 2nd phase constructor is private.
+ */
+ void ConstructL( TInt aMemoryConsumption );
+
+ /**
+ * Cleans old entries from cache according to specified per cent
+ *
+ */
+ void CleanupCache( );
+
+ /**
+ * Constructs file extension mime pairs
+ *
+ */
+ void ConstructExtMimePairsL(
+ RResourceFile& aResFile,
+ TInt aResId,
+ RPointerArray< CExtMimePair >& aPairs );
+
+ /**
+ * Finds mime from file extension
+ *
+ */
+ TPtrC FindMimeFromExt(
+ const TDesC& aExt, RPointerArray< CExtMimePair >& aPairs );
+
+ /**
+ * Does actual recognition
+ *
+ */
+ TPtrC DoRecognizeL( const TDesC& aFilename );
+
+ /**
+ * Reset and Destroy the RPointArray of CExtMimePair
+ *
+ */
+ static void ResetAndDestroyExtMimePairs( TAny* aPtr );
+
+ private: // Data
+ // Own: For using the apparc recognisers
+ RApaLsSession iApaSession;
+
+ // Array for mime types, owned
+ CDesCArraySeg* iMimeTypes;
+
+ // Mime type cache, owned
+ TDblQue< CPathTypePair > iCache;
+
+ // Current memory usage for cache
+ TInt iCacheMemoryUsage;
+
+ // Maximum memory usage for cache
+ TInt iCacheMaxMemoryUsage;
+
+ // Ref: Pointer to drive resolver
+ CGflmDriveResolver* iDriveResolver;
+
+ // Own: General file extension mime pairs
+ RPointerArray< CExtMimePair > iExtMimePairs;
+
+ // Own: Remote drive specific file extension mime pairs
+ RPointerArray< CExtMimePair > iRemoteExtMimePairs;
+
+ // Ref: Open file server session
+ RFs& iFs;
+
+ };
+
+#endif // CGFLMFILERECOGNIZER_H
+
+// End of File