author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 31 Mar 2010 21:08:33 +0300 | |
branch | RCL_3 |
changeset 33 | da5135c61bad |
permissions | -rw-r--r-- |
33
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/* |
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* Copyright (c) 2008-2008 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Parser class extension for parsing landmarks to url and vice versa |
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* |
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*/ |
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#include "cmrurlparserextension.h" |
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#include <EPos_CPosLandmark.h> |
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#include <lbsposition.h> |
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#include <utf.h> |
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#include <finditemengine.h> |
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#include <calentry.h> |
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#include "emailtrace.h" |
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namespace |
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{ |
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// Old location base URL format |
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_LIT( KLocationUrl, "http://www.ovi.com/maps/" ); |
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// Latitude parameter |
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_LIT( KUrlParamLatitude, "lat=" ); |
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// Parameter separator |
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_LIT( KUrlParamSeparator, "&" ); |
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// Longitude parameter |
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_LIT( KUrlParamLongitude, "lon=" ); |
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// Location sieve URL |
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_LIT( KLocationSieveUrl, "http://www.ovi.com/maps/lat=*&lon=*" ); |
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const TUint KDecimalSeparator = '.'; |
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const TUint KMinusSign = '-'; |
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// ======== LOCAL FUNCTIONS ======== |
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// ---------------------------------------------------------------------------- |
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// CheckCoordinateParamL |
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// |
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// Checks if coordinate parameter (lon or lat) is in correct format |
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// Leaves if not |
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// Correct form is: |
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// -minus sign allowed only in first position |
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// -only one decimalseparator sign allowed |
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// -only digits allowed |
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// -aParam length not allowed to be zero |
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// ---------------------------------------------------------------------------- |
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// |
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void CheckCoordinateParamL( const TDesC& aParam ) |
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{ |
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FUNC_LOG; |
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if( aParam.Length() == 0 ) |
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{ |
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User::Leave( KErrArgument ); |
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} |
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//check that aParam contains only digits and only one decimalseparator |
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//and minus sign is first, if it exists |
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TChar character; |
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TBool decimalSeparatorFound = EFalse; |
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TLex lex; |
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lex.Assign( aParam ); |
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for( TInt i = 0; i < aParam.Length(); i++) |
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{ |
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character = lex.Get(); |
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//checks if first character is minus sign and continues if it is |
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if( i == 0 && (TUint)character == KMinusSign) |
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{ |
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continue; |
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} |
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//check that only one decimal separator exists |
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if ( (TUint)character == KDecimalSeparator ) |
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{ |
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if ( decimalSeparatorFound ) |
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{ |
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User::Leave( KErrArgument ); |
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} |
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else |
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{ |
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decimalSeparatorFound = ETrue; |
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} |
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} |
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//check that character is either digit or decimalseparator |
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if( !( character.IsDigit() ) && (TUint)character != KDecimalSeparator ) |
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{ |
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User::Leave( KErrArgument ); |
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} |
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} |
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} |
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// ---------------------------------------------------------------------------- |
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// GetCoordinateParamValuesL |
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// Returns longitude and latitude if found correctly |
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// ---------------------------------------------------------------------------- |
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111 |
// |
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void GetCoordinateParamValuesL( const TDesC& aUrl, |
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TPtrC& aLatitude, |
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TPtrC& aLongitude ) |
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115 |
{ |
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FUNC_LOG; |
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117 |
|
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//Find out if lat and lon params and separator exists in aUrl |
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TInt latPos = aUrl.Find( KUrlParamLatitude ); |
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TInt lonPos = aUrl.Find( KUrlParamLongitude ); |
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TInt separatorPos = aUrl.Find( KUrlParamSeparator ); |
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122 |
|
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if( latPos == KErrNotFound || lonPos == KErrNotFound |
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|| separatorPos == KErrNotFound ) |
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125 |
{ |
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User::Leave( KErrNotFound ); |
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} |
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128 |
|
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//takes from aUrl parts with actual coordinate data |
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aLatitude.Set( aUrl.Mid( |
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latPos + KUrlParamLatitude().Length(), |
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separatorPos - latPos - KUrlParamLatitude().Length() ) ); |
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133 |
|
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aLongitude.Set( aUrl.Right( |
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aUrl.Length() - separatorPos - 1 - KUrlParamLongitude().Length() ) ); |
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} |
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} |
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138 |
|
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// ======== MEMBER FUNCTIONS ======== |
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140 |
|
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// --------------------------------------------------------------------------- |
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// CMRUrlParserExtension::CMRUrlParserExtension |
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// --------------------------------------------------------------------------- |
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144 |
// |
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CMRUrlParserExtension::CMRUrlParserExtension() |
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146 |
{ |
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FUNC_LOG; |
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} |
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149 |
|
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150 |
// --------------------------------------------------------------------------- |
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// CMRUrlParserExtension::NewL |
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// --------------------------------------------------------------------------- |
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153 |
// |
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CMRUrlParserExtension* CMRUrlParserExtension::NewL() |
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155 |
{ |
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FUNC_LOG; |
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157 |
|
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CMRUrlParserExtension* self = CMRUrlParserExtension::NewLC(); |
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CleanupStack::Pop( self ); |
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return self; |
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} |
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162 |
|
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163 |
|
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// --------------------------------------------------------------------------- |
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// CMRUrlParserExtension::NewLC |
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// --------------------------------------------------------------------------- |
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167 |
// |
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CMRUrlParserExtension* CMRUrlParserExtension::NewLC() |
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169 |
{ |
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FUNC_LOG; |
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171 |
|
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CMRUrlParserExtension* self = new( ELeave ) CMRUrlParserExtension; |
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CleanupStack::PushL( self ); |
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return self; |
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} |
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176 |
|
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177 |
|
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// --------------------------------------------------------------------------- |
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// CMRUrlParserExtension::~CMRUrlParserExtension |
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// --------------------------------------------------------------------------- |
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181 |
// |
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CMRUrlParserExtension::~CMRUrlParserExtension() |
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183 |
{ |
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FUNC_LOG; |
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} |
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186 |
|
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// --------------------------------------------------------------------------- |
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188 |
// CMRUrlParserExtension::FindLocationUrl |
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// Finds location URL from given text input |
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// --------------------------------------------------------------------------- |
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191 |
// |
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void CMRUrlParserExtension::FindLocationUrlL( |
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const TDesC& aText, |
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TPtrC& aUrl, |
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TInt& aPos) |
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196 |
|
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197 |
{ |
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FUNC_LOG; |
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199 |
|
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//Seach if base string is found from aText |
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TInt urlLocation = aText.FindF( KLocationUrl ); |
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if ( urlLocation < KErrNone ) |
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203 |
{ |
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User::Leave(KErrNotFound); |
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} |
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206 |
|
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//Take out unnecessary part before URL and search if endmark (whitespace) |
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//is found. If endmark is not found, |
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//then all the rest of descriptor is part of URL |
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TPtrC urlAndAfter = aText.Mid( urlLocation ); |
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TInt urlAndAfterLength = urlAndAfter.Length(); |
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TInt urlEndmarkLocation = KErrNotFound; |
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213 |
|
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for( TInt i = 0; i < urlAndAfterLength; i++) |
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215 |
{ |
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if( TChar( urlAndAfter[i] ).IsSpace() ) |
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{ |
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urlEndmarkLocation = i; |
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break; |
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} |
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} |
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|
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if( urlEndmarkLocation == KErrNotFound ) |
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{ |
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urlEndmarkLocation = urlAndAfterLength; |
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} |
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|
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//Take out part from beginning of URL to endmark |
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TPtrC urlToEndMark = urlAndAfter.Left( urlEndmarkLocation ); |
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|
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//Now we should have only URL left, check with "sieve" that it is about in |
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//right format |
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TInt sievedStartPoint = urlToEndMark.MatchF( KLocationSieveUrl ); |
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|
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if( sievedStartPoint == KErrNotFound ) |
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{ |
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User::Leave(KErrNotFound); |
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} |
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239 |
|
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//Check that parameters are in right format |
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TPtrC latValue; |
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TPtrC lonValue; |
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|
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GetCoordinateParamValuesL( |
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urlToEndMark, |
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latValue, |
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lonValue ); |
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CheckCoordinateParamL( latValue ); |
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CheckCoordinateParamL( lonValue ); |
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250 |
|
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//Set aURL to correspond URL part of aText and aPos with url position |
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aUrl.Set( urlToEndMark ); |
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aPos = urlLocation; |
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} |
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|
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// --------------------------------------------------------------------------- |
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// CMRUrlParserExtension::CreateLandmarkFromUrlL |
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// Creates landmark object from location URL |
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// --------------------------------------------------------------------------- |
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// |
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CPosLandmark* CMRUrlParserExtension::CreateLandmarkFromUrlL( |
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const TDesC& aUrl ) |
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{ |
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Revision: 201011
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FUNC_LOG; |
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265 |
|
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TInt matchPos = User::LeaveIfError( aUrl.MatchF( KLocationSieveUrl ) ); |
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267 |
|
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if( matchPos != 0 ) |
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269 |
{ |
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//URL was found but is not int the beginning of desc |
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User::Leave( KErrArgument ); |
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} |
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|
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//Parse actual coordinate values out of url |
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TPtrC latValue; |
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TPtrC lonValue; |
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GetCoordinateParamValuesL( aUrl, latValue, lonValue ); |
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|
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//Check that parameters are in right format |
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CheckCoordinateParamL( latValue ); |
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CheckCoordinateParamL( lonValue ); |
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282 |
|
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Revision: 201011
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283 |
//Convert parameters to TReal values |
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Revision: 201011
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TLex lexConverter( latValue ); |
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Revision: 201011
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TReal64 realLatitude; |
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Revision: 201011
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lexConverter.Val( realLatitude ); |
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|
287 |
|
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Revision: 201011
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lexConverter.Assign( lonValue ); |
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Revision: 201011
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289 |
TReal64 realLongitude; |
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Revision: 201011
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lexConverter.Val( realLongitude ); |
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|
291 |
|
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//Create landmark with coordinatevalues |
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Revision: 201011
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CPosLandmark* landmark = CPosLandmark::NewLC(); |
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Revision: 201011
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TLocality position; |
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Revision: 201011
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position.SetCoordinate( realLatitude, realLongitude ); |
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Revision: 201011
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landmark->SetPositionL( position ); |
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Revision: 201011
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297 |
CleanupStack::Pop( landmark ); |
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Revision: 201011
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|
298 |
|
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Revision: 201011
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299 |
//transfer ownership |
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Revision: 201011
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return landmark; |
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Revision: 201011
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301 |
} |
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Revision: 201011
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|
302 |
|
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Revision: 201011
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303 |
//EOF |
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Revision: 201011
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parents:
diff
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|
304 |