engine/inc/FeedParser.h
changeset 2 29cda98b007e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/inc/FeedParser.h	Thu Feb 25 14:29:19 2010 +0000
@@ -0,0 +1,104 @@
+/*
+* Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB
+*
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:
+* EmbedDev AB - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef FEEDPARSER_H_
+#define FEEDPARSER_H_
+
+#include "FeedParserObserver.h"
+#include "FeedInfo.h"
+#include <xml/parser.h> // for CParser
+#include <xml/contenthandler.h>	// for Xml::MContentHandler
+#include <xml/documentparameters.h>
+
+_LIT(KTagItem, "item");
+_LIT(KTagTitle, "title");
+_LIT(KTagImage, "image");
+_LIT(KTagLink, "link");
+_LIT(KTagDescription, "description");
+_LIT(KTagUrl, "url");
+_LIT(KTagLength, "length");
+_LIT(KTagChannel, "channel");
+_LIT(KTagEnclosure, "enclosure");
+_LIT(KTagPubDate, "pubDate");
+_LIT(KTagLastBuildDate, "lastBuildDate");
+_LIT(KTagHref, "href");
+
+enum TFeedState {
+	EStateRoot,
+	EStateChannel,
+	EStateChannelTitle,
+	EStateChannelLink,
+	EStateChannelLastBuildDate,
+	EStateChannelDescription,
+	EStateChannelImage,
+	EStateChannelImageUrl,
+	EStateItem,
+	EStateItemTitle,
+	EStateItemLink,
+	EStateItemEnclosure,
+	EStateItemDescription,
+	EStateItemPubDate
+};
+
+enum TEncoding {
+	EUtf8,
+	ELatin1
+};
+
+const int KBufferLength = 1024;
+
+class CFeedParser : public CBase, public Xml::MContentHandler 
+{
+public:
+	CFeedParser(MFeedParserObserver& aCallbacks, RFs& aFs);
+	virtual ~CFeedParser();
+	
+public:
+	void ParseFeedL(const TFileName &feedFileName, CFeedInfo *item, TUint aMaxItems);
+	
+public: // from MContentHandler
+	void OnStartDocumentL(const Xml::RDocumentParameters& aDocParam, TInt aErrorCode);
+	void OnEndDocumentL(TInt aErrorCode);
+	void OnStartElementL(const Xml::RTagInfo& aElement, const Xml::RAttributeArray& aAttributes, TInt aErrorCode);
+	void OnEndElementL(const Xml::RTagInfo& aElement, TInt aErrorCode);
+	void OnContentL(const TDesC8& aBytes, TInt aErrorCode);
+	void OnStartPrefixMappingL(const RString& aPrefix, const RString& aUri, TInt aErrorCode);
+	void OnEndPrefixMappingL(const RString& aPrefix, TInt aErrorCode);
+	void OnIgnorableWhiteSpaceL(const TDesC8& aBytes, TInt aErrorCode);
+	void OnSkippedEntityL(const RString& aName, TInt aErrorCode);
+	void OnProcessingInstructionL(const TDesC8& aTarget, const TDesC8& aData, TInt aErrorCode);
+	void OnError(TInt aErrorCode);
+	TAny* GetExtendedInterface(const TInt32 aUid);
+	CFeedInfo& ActiveFeed();
+private:
+	MFeedParserObserver& iCallbacks;
+	TFeedState iFeedState;
+
+	CShowInfo* iActiveShow;
+	CFeedInfo *iActiveFeed;
+
+	TBuf<KBufferLength> iBuffer;
+	
+	TUint iMaxItems;
+	TUint iItemsParsed;
+	TBool iStoppedParsing;
+	TEncoding iEncoding;
+	RFs& iRfs;
+};
+
+#endif