1 /*

     2  * Name        : Remote.h

     3  * Description : 

     4  * Project     : This file is part of OpenMAR, an Open Mobile Augmented Reality browser

     5  * Website     : http://OpenMAR.org

     6  *

     7  * Copyright (c) 2010 David Caabeiro

     8  *

     9  * All rights reserved. This program and the accompanying materials are made available 

    10  * under the terms of the Eclipse Public License v1.0 which accompanies this 

    11  * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html

    12  *

    13  */

    14 

    15 #ifndef REMOTE_H_

    16 #define REMOTE_H_

    17 

    18 #include <e32base.h>

    19 #include <EPos_CPosLandmark.h>

    20 #include <EPos_CPosLandmarkParser.h>

    21 #include <http/MHttpTransactionCallback.h>

    22 

    23 #include "Loader.h"

    24 

    25 class TCoordinate;

    26 class CHttpClient;

    27 

    28 /**

    29  * @brief Retrieves landmarks from a remote database

    30  */

    31 

    32 class CRemoteLoader : public CActive, public MLandmarkLoader, public MHTTPTransactionCallback

    33 {

    34 public:

    35     static CRemoteLoader* NewL(MLandmarkLoaderObserver& aObserver, const TDesC8& aProviderUri);

    36     ~CRemoteLoader();

    37 

    38 protected:

    39     CRemoteLoader(MLandmarkLoaderObserver& aObserver);

    40     void ConstructL(const TDesC8& aProviderUri);

    41 

    42     void RunL();

    43     void DoCancel();

    44 

    45 public:

    46     // From MLandmarkLoader

    47     void RequestL(const TCoordinate& aCoordinate, TReal32 aRadius);

    48 

    49 protected:

    50     // From MHTTPTransactionCallback

    51     void MHFRunL(RHTTPTransaction aTransaction, const THTTPEvent& aEvent);

    52     TInt MHFRunError(TInt aError, RHTTPTransaction aTransaction, const THTTPEvent& aEvent);

    53 

    54 private:

    55     MLandmarkLoaderObserver& iObserver;

    56 

    57     HBufC8* iBaseUri;

    58     CHttpClient* iClient;

    59     RBuf8 iBuffer;

    60 

    61     CPosLandmarkParser* iParser;

    62     CPosLmOperation* iOperation;

    63     TReal32 iProgress;

    64 };

    65 

    66 #endif  // REMOTE_H_