1 /*

     2 * Copyright (c) 2010 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: 

    15 *

    16 */

    17 

    18 

    19 #include "btsettingmodel_p.h"

    20 #include <btdevice.h>

    21 #include <btmanclient.h>

    22 #include <bt_subscribe.h>

    23 #include "btqtconstants.h"

    24 

    25 const int KLocalDeviceNameWatcher = 10;

    26 const int KBtLinkCountWatcher = 11;

    27 

    28 /*!

    29     Constructor.

    30  */

    31 BtSettingModelPrivate::BtSettingModelPrivate( BtSettingModel& model, QObject *parent )

    32     : QObject( parent), mModel( model ), mLocalDeviceWatcher(0)

    33     {

    34     int err( 0 );

    35     if (!err ) {

    36         err = mLocalDeviceKey.Attach( KPropertyUidBluetoothCategory, 

    37                     KPropertyKeyBluetoothGetRegistryTableChange );

    38     }

    39     

    40     Q_CHECK_PTR( !err ); // other proper alternative?

    41 

    42     TRAP_IGNORE({

    43         mBtengSetting = CBTEngSettings::NewL( this );

    44         mLocalDeviceWatcher = CBtSimpleActive::NewL(*this, KLocalDeviceNameWatcher );

    45     });

    46     

    47     Q_CHECK_PTR( mBtengSetting );

    48     Q_CHECK_PTR( mLocalDeviceWatcher );

    49 

    50     for ( int i = 0; i < BtSettingModel::LocalSettingRowCount; ++i ) {

    51         // Initialize the list with empty values.

    52         mData.append( BtuiModelDataItem() );

    53     }

    54     

    55     // subscribe to local device table change:

    56     mLocalDeviceKey.Subscribe( mLocalDeviceWatcher->RequestStatus() );

    57     mLocalDeviceWatcher->GoActive();

    58     

    59     // Get the device name

    60     TBTDeviceName  deviceName;

    61     (void) mBtengSetting->GetLocalName( deviceName );

    62     updateDeviceName( QString::fromUtf16( deviceName.Ptr(), deviceName.Length() ) );

    63     

    64     // Get the power setting.

    65     TBTPowerStateValue power( EBTPowerOff );

    66     (void) mBtengSetting->GetPowerState( power );

    67     setPowerSetting( power );

    68     

    69     // Get the visibility mode

    70     TBTVisibilityMode visibilityMode( EBTVisibilityModeNoScans );

    71     (void) mBtengSetting->GetVisibilityMode( visibilityMode );

    72     setVisibilityMode( visibilityMode );

    73 }

    74 

    75 /*!

    76     Destructor.

    77  */

    78 BtSettingModelPrivate::~BtSettingModelPrivate()

    79 {

    80     // delete main data structure

    81     delete mBtengSetting;

    82     delete mLocalDeviceWatcher;

    83     mLocalDeviceKey.Close();

    84     

    85     // delete mBtLinkCountWatcher;

    86     //mBtLinkCountKey.Close();

    87 }

    88 

    89 

    90 /*!

    91     Tells whether the given column is in the range of the setting list.

    92     

    93     \param row the row number to be checked

    94     \param col the column number to be checked

    95     

    96     \return true if the given row and column are valid; false otherwise.

    97 */

    98 bool BtSettingModelPrivate::isValid( int row, int column) const

    99 {

   100     return row >= 0 && row < mData.count() && column == 0;

   101 }

   102 

   103 /*!

   104     \return the total amount of rows.

   105     

   106 */

   107 int BtSettingModelPrivate::rowCount() const

   108 {

   109     return mData.count();

   110 }

   111 

   112 /*!

   113     \return the total amount of columns.

   114     

   115 */

   116 int BtSettingModelPrivate::columnCount() const

   117 {

   118     return 1;

   119 }

   120 

   121 /*!

   122     Gets the value within a data item.

   123     \param val contains the value at return.

   124     \param row the row number which the value is from

   125     \param col the column number which the value is from

   126     \param role the role idenfier of the value.

   127  */

   128 void BtSettingModelPrivate::data(QVariant& val, int row,  int col, int role ) const

   129 {

   130     if ( isValid( row, col ) ) {

   131         val = mData.at( row ).value( role );

   132     }

   133     else {

   134         val = QVariant( QVariant::Invalid );

   135     }

   136 }

   137 

   138 /*!

   139     Gets the whole item data at the specified column

   140     \param row the row number of the item data to be returned

   141     \param col the column number of the item data to be returned

   142     \return the item data

   143  */

   144 BtuiModelDataItem BtSettingModelPrivate::itemData( int row, int col ) const

   145 {

   146     if ( isValid( row, col ) ) {

   147         return mData.at( row );

   148     }

   149     return BtuiModelDataItem();

   150 }

   151 

   152 /*!

   153     Provides notification of changes in the power state

   154     of the Bluetooth hardware.

   155 

   156     \param state EBTPowerOff if the BT hardware has been turned off,

   157                  EBTPowerOn if it has been turned on.

   158  */

   159 void BtSettingModelPrivate::PowerStateChanged( TBTPowerStateValue state ) 

   160 {

   161     setPowerSetting( state );

   162     emit settingDataChanged( BtSettingModel::PowerStateRow, this );

   163 }

   164 

   165 /*!

   166     Provides notification of changes in the discoverability

   167     mode of the Bluetooth hardware.

   168     \param state EBTDiscModeHidden if the BT hardware is in hidden mode,

   169                   EBTDiscModeGeneral if it is in visible mode.

   170  */

   171 void BtSettingModelPrivate::VisibilityModeChanged( TBTVisibilityMode state )

   172 {

   173     setVisibilityMode( state );

   174     emit settingDataChanged( BtSettingModel::VisibilityRow, this );

   175 }

   176 

   177 void BtSettingModelPrivate::RequestCompletedL( CBtSimpleActive* active, TInt status ) {

   178     Q_UNUSED( active );

   179     Q_UNUSED( status );

   180     if ( active->RequestId() == KLocalDeviceNameWatcher ) {

   181         mLocalDeviceKey.Subscribe( mLocalDeviceWatcher->RequestStatus() );

   182         mLocalDeviceWatcher->GoActive();

   183         updateDeviceName( QString() );

   184     }

   185 }

   186 

   187 void BtSettingModelPrivate::CancelRequest( TInt requestId ) {

   188     if ( requestId == KLocalDeviceNameWatcher ) {

   189         mLocalDeviceKey.Cancel();

   190     }

   191     else if ( requestId == KBtLinkCountWatcher ) {

   192         //mBtLinkCountKey.Cancel();

   193     }

   194 }

   195 

   196 void BtSettingModelPrivate::HandleError( CBtSimpleActive* active, TInt error ) {

   197     Q_UNUSED( active );

   198     Q_UNUSED( error );

   199 }

   200 

   201 /*!

   202     Update local Bluetooth device name in the data store.

   203     @param name the latest Bluetooth name.

   204  */

   205 void BtSettingModelPrivate::updateDeviceName( const QString &name ) 

   206 {

   207     // To-do: the data structure initialization is not impled yet in the model

   208     BtuiModelDataItem& item = 

   209             mData[ BtSettingModel::LocalBtNameRow ];

   210     

   211     bool setByUser = !name.isEmpty();

   212     

   213     // The additional parameter is the flag indicating whether the 

   214     // Bluetooth name has been set by the user.

   215     // The flag is set to true if the name has been set.    

   216     // item[ BtSettingModel::SettingValueParamRole ] = QVariant( setByUser );

   217     

   218     QString resolvedName( name );

   219     if ( resolvedName.isEmpty() ) {

   220         // We get the default name as suggestion for the user to set.

   221         getNameFromRegistry( resolvedName );

   222     }

   223     item[ BtSettingModel::settingDisplayRole ] = QVariant( resolvedName );

   224     item[ BtSettingModel::SettingValueRole ] = QVariant( resolvedName );

   225 }

   226 

   227 /*!

   228     Updates all values related to the power setting.

   229  */

   230 void BtSettingModelPrivate::setPowerSetting( TBTPowerStateValue state )

   231 {

   232     BtuiModelDataItem& item = 

   233             mData[ BtSettingModel::PowerStateRow ];

   234     

   235     item[ BtSettingModel::SettingValueRole ] = QVariant( QtPowerMode(state) );

   236 }

   237 

   238 void BtSettingModelPrivate::setVisibilityMode( TBTVisibilityMode state )

   239 {

   240     BtuiModelDataItem& item = mData[ BtSettingModel::VisibilityRow ];

   241 

   242     item [ BtSettingModel::SettingValueRole ] = QVariant( QtVisibilityMode(state) );

   243 }

   244 

   245 /*!

   246     Get local Bluetooth device name from BTRegistry.

   247  */

   248 void BtSettingModelPrivate::getNameFromRegistry( QString &name )

   249 {

   250     RBTRegServ btRegServ;   // Session with BTMan

   251     RBTLocalDevice btReg;   // Subsession with local device table

   252     TBTLocalDevice localDev;// Data structure holding local device information

   253 

   254     TInt err = btRegServ.Connect();

   255     if ( !err ) {

   256         err = btReg.Open( btRegServ );

   257     }

   258     if ( !err ) {

   259         // Read the BT local name from BT Registry.

   260         err = btReg.Get( localDev );

   261     }

   262     if ( !err ) {

   263         name = QString::fromUtf8( (const char*) localDev.DeviceName().Ptr(), (int) localDev.DeviceName().Length() );

   264     }

   265     btReg.Close();

   266     btRegServ.Close();

   267 }