phonebookengines_old/contactsmodel/inc/cntviewfindconfig.h
changeset 40 b46a585f6909
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phonebookengines_old/contactsmodel/inc/cntviewfindconfig.h	Fri Jun 11 13:29:23 2010 +0300
@@ -0,0 +1,94 @@
+// Copyright (c) 2002-2009 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:
+//
+
+#ifndef __CNTVIEWFINDCONFIG_H__
+#define __CNTVIEWFINDCONFIG_H__
+
+#include <e32base.h>
+#include "ecom/ecom.h"		// For REComSession
+
+class CContactViewFindConfigInterface : public CBase
+/** An interface class that enables implementers to configure the way in which 
+words are matched in CContactViewBase::ContactsMatchingCriteriaL() and CContactViewBase::ContactsMatchingPrefixL().
+
+By default these two functions use TDesC16::MatchC() to do the matching, but 
+where this is not appropriate, for instance in Chinese locales, a plug-in 
+that implements this interface should be supplied. The plug-in's UID should 
+be passed to CContactViewBase::SetViewFindConfigPlugin(), then the plug-in 
+will be loaded when ContactsMatchingCriteriaL() or ContactsMatchingPrefixL() 
+is called. Note that the plug-in is only loaded once per view, not each time 
+a find is requested. Note also that the plug-in is optional. If no plug-in 
+is supplied, TDesC16::MatchC() is used instead. 
+@publishedPartner
+@released
+*/
+	{
+	public:
+	static CContactViewFindConfigInterface* NewL(TUid aImplementationUid);
+	inline virtual ~CContactViewFindConfigInterface();
+	//pure virtual methods to be implemented by the plugin.
+	/** May be used by the implementor of the interface to provide construction-like 
+	behaviour.
+	
+	For example, it might be used to open a connection to a predictive text input 
+	database, or might be used for reference counting of shared objects (using 
+	TLS to store the data). */
+	virtual void OpenL() = 0;
+	/** May be used by the implementor of the interface to provide destruction-like 
+	behaviour.
+	
+	For example, it might be used to close a connection to a predictive text input 
+	database, or might be used for reference counting of shared objects (using 
+	TLS to store the data). */
+	virtual void Close() = 0;
+	/** Searches for a string with wildcards in a single field in a contact item.
+	
+	@param aContactsField The contents of the contact item field to search.
+	@param aWord The string to search for in aContactsField. Note that it contains 
+	a '*' wildcard character at the end and optionally one at the beginning, depending 
+	on whether ContactsMatchingCriteriaL() or ContactsMatchingPrefixL() was called.
+	@return ETrue if aWord is found in aContactsField. EFalse if not. */
+	virtual TBool Match(const TDesC& aContactsField, const TDesC& aWord) = 0;
+	/** Tests whether a specified word is valid to be matched by the plug-in's implementation 
+	of Match().
+	
+	For instance, in an implementation for a Chinese locale, this function would 
+	return EFalse for non-Chinese words.
+	
+	Any words that are not valid to be matched by the plug-in will be matched 
+	using TDesC16::MatchC() instead.
+	
+	@param aWord The word to be checked. Note that it contains a '*' wildcard 
+	character at the end and optionally one at the beginning, depending on whether 
+	ContactsMatchingCriteriaL() or ContactsMatchingPrefixL() was called.
+	@return ETrue if the word is valid for matching by the plug-in, EFalse if not. */
+	virtual TBool IsWordValidForMatching(const TDesC& aWord) = 0;
+	/** An optimisation function that may be used to implement incremental find, i.e. 
+	involving only the results of a previous search, rather than the entire view.
+	
+	This function is not called in v7.0s, but is provided for possible future use.
+	
+	@param aItemString The string that is being searched.
+	@param aSearchText The string to search for.
+	@return ETrue if aSearchText is found in aItemString. EFalse if not. */
+	virtual TBool MatchRefineL( const TDesC& aItemString, const TDesC &aSearchText) = 0;
+	private:
+	//The uid is stored here,so that it can be used during destruction of the instance.
+	TUid iDtor_ID_Key;
+	};
+
+#include <cntviewfindconfig.inl>
+
+#endif