--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/meetingrequest/mrurlparserplugin/src/cmrurlparserextension.cpp Wed Mar 31 21:08:33 2010 +0300
@@ -0,0 +1,304 @@
+/*
+* Copyright (c) 2008-2008 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: Parser class extension for parsing landmarks to url and vice versa
+*
+*/
+
+
+
+#include "cmrurlparserextension.h"
+
+#include <EPos_CPosLandmark.h>
+#include <lbsposition.h>
+#include <utf.h>
+#include <finditemengine.h>
+#include <calentry.h>
+
+#include "emailtrace.h"
+
+namespace
+{
+// Old location base URL format
+_LIT( KLocationUrl, "http://www.ovi.com/maps/" );
+
+// Latitude parameter
+_LIT( KUrlParamLatitude, "lat=" );
+
+// Parameter separator
+_LIT( KUrlParamSeparator, "&" );
+
+// Longitude parameter
+_LIT( KUrlParamLongitude, "lon=" );
+
+// Location sieve URL
+_LIT( KLocationSieveUrl, "http://www.ovi.com/maps/lat=*&lon=*" );
+
+const TUint KDecimalSeparator = '.';
+const TUint KMinusSign = '-';
+
+// ======== LOCAL FUNCTIONS ========
+// ----------------------------------------------------------------------------
+// CheckCoordinateParamL
+//
+// Checks if coordinate parameter (lon or lat) is in correct format
+// Leaves if not
+// Correct form is:
+// -minus sign allowed only in first position
+// -only one decimalseparator sign allowed
+// -only digits allowed
+// -aParam length not allowed to be zero
+// ----------------------------------------------------------------------------
+//
+void CheckCoordinateParamL( const TDesC& aParam )
+ {
+ FUNC_LOG;
+ if( aParam.Length() == 0 )
+ {
+ User::Leave( KErrArgument );
+ }
+
+ //check that aParam contains only digits and only one decimalseparator
+ //and minus sign is first, if it exists
+ TChar character;
+ TBool decimalSeparatorFound = EFalse;
+ TLex lex;
+ lex.Assign( aParam );
+
+ for( TInt i = 0; i < aParam.Length(); i++)
+ {
+ character = lex.Get();
+ //checks if first character is minus sign and continues if it is
+ if( i == 0 && (TUint)character == KMinusSign)
+ {
+ continue;
+ }
+
+ //check that only one decimal separator exists
+ if ( (TUint)character == KDecimalSeparator )
+ {
+ if ( decimalSeparatorFound )
+ {
+ User::Leave( KErrArgument );
+ }
+ else
+ {
+ decimalSeparatorFound = ETrue;
+ }
+ }
+ //check that character is either digit or decimalseparator
+ if( !( character.IsDigit() ) && (TUint)character != KDecimalSeparator )
+ {
+ User::Leave( KErrArgument );
+ }
+ }
+ }
+
+// ----------------------------------------------------------------------------
+// GetCoordinateParamValuesL
+// Returns longitude and latitude if found correctly
+// ----------------------------------------------------------------------------
+//
+void GetCoordinateParamValuesL( const TDesC& aUrl,
+ TPtrC& aLatitude,
+ TPtrC& aLongitude )
+ {
+ FUNC_LOG;
+
+ //Find out if lat and lon params and separator exists in aUrl
+ TInt latPos = aUrl.Find( KUrlParamLatitude );
+ TInt lonPos = aUrl.Find( KUrlParamLongitude );
+ TInt separatorPos = aUrl.Find( KUrlParamSeparator );
+
+ if( latPos == KErrNotFound || lonPos == KErrNotFound
+ || separatorPos == KErrNotFound )
+ {
+ User::Leave( KErrNotFound );
+ }
+
+ //takes from aUrl parts with actual coordinate data
+ aLatitude.Set( aUrl.Mid(
+ latPos + KUrlParamLatitude().Length(),
+ separatorPos - latPos - KUrlParamLatitude().Length() ) );
+
+ aLongitude.Set( aUrl.Right(
+ aUrl.Length() - separatorPos - 1 - KUrlParamLongitude().Length() ) );
+ }
+}
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// CMRUrlParserExtension::CMRUrlParserExtension
+// ---------------------------------------------------------------------------
+//
+CMRUrlParserExtension::CMRUrlParserExtension()
+ {
+ FUNC_LOG;
+ }
+
+// ---------------------------------------------------------------------------
+// CMRUrlParserExtension::NewL
+// ---------------------------------------------------------------------------
+//
+CMRUrlParserExtension* CMRUrlParserExtension::NewL()
+ {
+ FUNC_LOG;
+
+ CMRUrlParserExtension* self = CMRUrlParserExtension::NewLC();
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CMRUrlParserExtension::NewLC
+// ---------------------------------------------------------------------------
+//
+CMRUrlParserExtension* CMRUrlParserExtension::NewLC()
+ {
+ FUNC_LOG;
+
+ CMRUrlParserExtension* self = new( ELeave ) CMRUrlParserExtension;
+ CleanupStack::PushL( self );
+ return self;
+ }
+
+
+// ---------------------------------------------------------------------------
+// CMRUrlParserExtension::~CMRUrlParserExtension
+// ---------------------------------------------------------------------------
+//
+CMRUrlParserExtension::~CMRUrlParserExtension()
+ {
+ FUNC_LOG;
+ }
+
+// ---------------------------------------------------------------------------
+// CMRUrlParserExtension::FindLocationUrl
+// Finds location URL from given text input
+// ---------------------------------------------------------------------------
+//
+void CMRUrlParserExtension::FindLocationUrlL(
+ const TDesC& aText,
+ TPtrC& aUrl,
+ TInt& aPos)
+
+ {
+ FUNC_LOG;
+
+ //Seach if base string is found from aText
+ TInt urlLocation = aText.FindF( KLocationUrl );
+ if ( urlLocation < KErrNone )
+ {
+ User::Leave(KErrNotFound);
+ }
+
+ //Take out unnecessary part before URL and search if endmark (whitespace)
+ //is found. If endmark is not found,
+ //then all the rest of descriptor is part of URL
+ TPtrC urlAndAfter = aText.Mid( urlLocation );
+ TInt urlAndAfterLength = urlAndAfter.Length();
+ TInt urlEndmarkLocation = KErrNotFound;
+
+ for( TInt i = 0; i < urlAndAfterLength; i++)
+ {
+ if( TChar( urlAndAfter[i] ).IsSpace() )
+ {
+ urlEndmarkLocation = i;
+ break;
+ }
+ }
+
+ if( urlEndmarkLocation == KErrNotFound )
+ {
+ urlEndmarkLocation = urlAndAfterLength;
+ }
+
+ //Take out part from beginning of URL to endmark
+ TPtrC urlToEndMark = urlAndAfter.Left( urlEndmarkLocation );
+
+ //Now we should have only URL left, check with "sieve" that it is about in
+ //right format
+ TInt sievedStartPoint = urlToEndMark.MatchF( KLocationSieveUrl );
+
+ if( sievedStartPoint == KErrNotFound )
+ {
+ User::Leave(KErrNotFound);
+ }
+
+ //Check that parameters are in right format
+ TPtrC latValue;
+ TPtrC lonValue;
+
+ GetCoordinateParamValuesL(
+ urlToEndMark,
+ latValue,
+ lonValue );
+ CheckCoordinateParamL( latValue );
+ CheckCoordinateParamL( lonValue );
+
+ //Set aURL to correspond URL part of aText and aPos with url position
+ aUrl.Set( urlToEndMark );
+ aPos = urlLocation;
+ }
+
+// ---------------------------------------------------------------------------
+// CMRUrlParserExtension::CreateLandmarkFromUrlL
+// Creates landmark object from location URL
+// ---------------------------------------------------------------------------
+//
+CPosLandmark* CMRUrlParserExtension::CreateLandmarkFromUrlL(
+ const TDesC& aUrl )
+ {
+ FUNC_LOG;
+
+ TInt matchPos = User::LeaveIfError( aUrl.MatchF( KLocationSieveUrl ) );
+
+ if( matchPos != 0 )
+ {
+ //URL was found but is not int the beginning of desc
+ User::Leave( KErrArgument );
+ }
+
+ //Parse actual coordinate values out of url
+ TPtrC latValue;
+ TPtrC lonValue;
+ GetCoordinateParamValuesL( aUrl, latValue, lonValue );
+
+ //Check that parameters are in right format
+ CheckCoordinateParamL( latValue );
+ CheckCoordinateParamL( lonValue );
+
+ //Convert parameters to TReal values
+ TLex lexConverter( latValue );
+ TReal64 realLatitude;
+ lexConverter.Val( realLatitude );
+
+ lexConverter.Assign( lonValue );
+ TReal64 realLongitude;
+ lexConverter.Val( realLongitude );
+
+ //Create landmark with coordinatevalues
+ CPosLandmark* landmark = CPosLandmark::NewLC();
+ TLocality position;
+ position.SetCoordinate( realLatitude, realLongitude );
+ landmark->SetPositionL( position );
+ CleanupStack::Pop( landmark );
+
+ //transfer ownership
+ return landmark;
+ }
+
+//EOF
+