1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  This class has JNI wrappers for CMMAMetaDataControl

    15 *

    16 */

    17 

    18 

    19 #include <logger.h>

    20 #include "com_nokia_microedition_media_control_MetaDataControl.h"

    21 

    22 #include "mmafunctionserver.h"

    23 #include "cmmametadatacontrol.h"

    24 #include "s60commonutils.h"

    25 #include "jstringutils.h"

    26 using namespace java::util;

    27     

    28 //#include "mmapiutils.h"

    29 

    30 

    31 /* ...getKeyCount

    32  *

    33  * Returns the number of metadata keys or symbian error code

    34  */

    35 

    36 JNIEXPORT jint JNICALL Java_com_nokia_microedition_media_control_MetaDataControl__1getKeysCount

    37 (JNIEnv* /*aJniEnv*/, jobject, jint aEventSourceHandle, jint aMetaDataControlHandle)

    38 {

    39     MMAFunctionServer* eventSource =

    40         reinterpret_cast< MMAFunctionServer* >(aEventSourceHandle);

    41     CMMAMetaDataControl* metaDataControl =

    42         reinterpret_cast< CMMAMetaDataControl* >(aMetaDataControlHandle);

    43 

    44     TInt keys;

    45     TInt err = eventSource->ExecuteTrap(&CMMAMetaDataControl::StaticKeysCountL, metaDataControl, &keys);

    46 

    47     return err == KErrNone ? keys : err;

    48 }

    49 

    50 

    51 /* ... getKey

    52  *

    53  * Get the key name at the given index from the actual native implementation. If no key is available,

    54  * return null.

    55  *

    56  * The ownership of the native data is received from the actual native implementation.

    57  * The data is duplicated to the Java side and the native data is destroyed here.

    58  */

    59 

    60 JNIEXPORT jstring JNICALL Java_com_nokia_microedition_media_control_MetaDataControl__1getKey

    61 (JNIEnv* aJniEnv, jobject, jint aEventSourceHandle, jint aMetaDataControlHandle, jint aIndex)

    62 {

    63     MMAFunctionServer* eventSource =

    64         reinterpret_cast< MMAFunctionServer *>(aEventSourceHandle);

    65 

    66     CMMAMetaDataControl* metaDataControl =

    67         reinterpret_cast< CMMAMetaDataControl* >(aMetaDataControlHandle);

    68 

    69     HBufC* key = NULL;

    70     jstring javaStr = NULL;

    71 

    72     TInt err = eventSource->ExecuteTrap(&CMMAMetaDataControl::StaticKeyL, metaDataControl, &key, aIndex);

    73 

    74     if (err == KErrNone)

    75     {

    76         javaStr = S60CommonUtils::NativeToJavaString(*aJniEnv, key->Des());

    77     }

    78     delete key;

    79 

    80     return javaStr;

    81 }

    82 

    83 /* ...getKeyValue

    84  *

    85  * Get the value of the given key from the actual native implementation. If no key is available,

    86  * return null (as specified in the MetaDataControl interface).

    87  *

    88  * The ownership of the native data is received from the actual native implementation.

    89  * The data is duplicated to the Java side and the native data is destroyed here.

    90  */

    91 

    92 JNIEXPORT jstring JNICALL Java_com_nokia_microedition_media_control_MetaDataControl__1getKeyValue

    93 (JNIEnv* aJniEnv, jobject, jint aEventSourceHandle, jint aMetaDataControlHandle, jstring aKey)

    94 {

    95     MMAFunctionServer* eventSource =

    96         reinterpret_cast< MMAFunctionServer* >(aEventSourceHandle);

    97 

    98     CMMAMetaDataControl* metaDataControl =

    99         reinterpret_cast< CMMAMetaDataControl* >(aMetaDataControlHandle);

   100 

   101     HBufC* value = NULL;

   102     JStringUtils key(*aJniEnv, aKey);

   103 

   104     TInt retVal = eventSource->ExecuteTrap(

   105                       &CMMAMetaDataControl::StaticKeyValueL,

   106                       metaDataControl,

   107                       &value,

   108                       (TDesC*) &key);

   109 

   110     jstring retString = NULL;

   111 

   112     if (KErrNone == retVal)

   113     {

   114         retString = S60CommonUtils::NativeToJavaString(*aJniEnv, *value);

   115     }

   116 

   117     delete value;

   118 

   119     return retString;

   120 }

   121 

   122 //  END OF FILE