/*

* Copyright (c) 2010 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:  BtCpUiMainView implementation

*

*/

#include "btcpuimainview.h"

#include "btuiviewutil.h"

#include <QtGlobal>

#include <QGraphicsLinearLayout>

#include <HbInstance>

#include <hbdocumentloader.h>

#include <hbnotificationdialog.h>

#include <hbgridview.h>

#include <hblistview.h>

#include <hbpushbutton.h>

#include <hblabel.h>

#include <hbicon.h>

#include <hblineedit.h>

#include <hbtooltip.h>

#include <btengconstants.h>

#include <hbmenu.h>

#include <hbaction.h>

#include <hbcombobox.h>

#include <hbgroupbox.h>

#include <hbdataform.h>

#include "btcpuisearchview.h"

#include "btcpuideviceview.h"

#include <bluetoothuitrace.h>

#include <btdelegatefactory.h>

#include <btabstractdelegate.h>

#include "btqtconstants.h"

#include "btcpuimainlistviewitem.h"

#include "btuidevtypemap.h"

// docml to load

const char* BTUI_MAINVIEW_DOCML = ":/docml/bt-main-view.docml";

/*!

    Constructs a new BtUiMainView using HBDocumentLoader.  Docml (basically xml) file

    has been generated using Application Designer.   

 */

BtCpUiMainView::BtCpUiMainView(        

        BtSettingModel &settingModel, 

        BtDeviceModel &deviceModel, 

        QGraphicsItem *parent )

    : BtCpUiBaseView( settingModel, deviceModel, parent ),

      mAbstractDelegate(0), mMainFilterModel(0)

{

    bool ret(false);

    mMainWindow = hbInstance->allMainWindows().first();

    mMainView = this;

    // Create view for the application.

    // Set the name for the view. The name should be same as the view's

    // name in docml.

    setObjectName("view");

    mLoader = new HbDocumentLoader();

    // Pass the view to documentloader. Document loader uses this view

    // when docml is parsed, instead of creating new view.

    QObjectList objectList;

    objectList.append(this);

    mLoader->setObjectTree(objectList);

    bool ok = false;

    mLoader->load( BTUI_MAINVIEW_DOCML, &ok );

    // Exit if the file format is invalid

    BTUI_ASSERT_X( ok, "bt-main-view", "Invalid docml file" );

    mOrientation = mMainWindow->orientation();

    if (mOrientation == Qt::Horizontal) {

        mLoader->load(BTUI_MAINVIEW_DOCML, "landscape", &ok);

        BTUI_ASSERT_X( ok, "bt-main-view", "Invalid docml file: landscape section problem" );

    }

    else {

        mLoader->load(BTUI_MAINVIEW_DOCML, "portrait", &ok);

        BTUI_ASSERT_X( ok, "bt-main-view", "Invalid docml file: landscape section problem" );        

    }

    mDeviceNameEdit=0;

    mDeviceNameEdit = qobject_cast<HbLineEdit *>( mLoader->findWidget( "lineEdit" ) );

    BTUI_ASSERT_X( mDeviceNameEdit != 0, "bt-main-view", "Device Name not found" );

    ret =  connect(mDeviceNameEdit, SIGNAL(editingFinished ()), this, SLOT(changeBtLocalName()));

    mPowerButton=0;

    mPowerButton = qobject_cast<HbPushButton *>( mLoader->findWidget( "pushButton" ) );

    BTUI_ASSERT_X( mPowerButton != 0, "bt-main-view", "power button not found" );

    ret =  connect(mPowerButton, SIGNAL(clicked()), this, SLOT(changePowerState()));

    BTUI_ASSERT_X( ret, "BtCpUiMainView::BtCpUiMainView", "can't connect power button" );

    mVisibilityMode=0;

    mVisibilityMode = qobject_cast<HbComboBox *>( mLoader->findWidget( "combobox" ) );

    BTUI_ASSERT_X( mVisibilityMode != 0, "bt-main-view", "visibility combobox not found" );

    // add new item for temporary visibility

    // NOTE:  translation (at least default english) gives string "(p)Visible for 5 min", 

    // if setting 1 min --> "(s)Visible for 1 min", ie p=plural, s=singular, but these should

    // not be shown to the user!

    // ToDo:  change this to use translation once it starts working

    QString tempVis(hbTrId("txt_bt_setlabel_visibility_val_visible_for_l1_min", 5));  

    //QString tempVis(hbTrId("Visible for 5 min"));  

    mVisibilityMode->addItem(tempVis, Qt::DisplayRole);

    mDeviceList=0;

    mDeviceList = qobject_cast<HbListView *>( mLoader->findWidget( "listView" ) );

    BTUI_ASSERT_X( mDeviceList != 0, "bt-main-view", "Device List (grid view) not found" );   

    ret = connect(mDeviceList, SIGNAL(activated(QModelIndex)), this, SLOT(deviceSelected(QModelIndex)));

    BTUI_ASSERT_X( ret, "bt-search-view", "deviceSelected can't connect" ); 

    // listen for orientation changes

    ret = connect(mMainWindow, SIGNAL(orientationChanged(Qt::Orientation)),

            this, SLOT(changeOrientation(Qt::Orientation)));

    BTUI_ASSERT_X( ret, "BtCpUiMainView::BtCpUiMainView()", "connect orientationChanged() failed");

    // load tool bar actions

    HbAction *discoverAction = static_cast<HbAction*>( mLoader->findObject( "discoverAction" ) );

    BTUI_ASSERT_X( discoverAction, "bt-main-view", "discover action missing" ); 

    ret = connect(discoverAction, SIGNAL(triggered()), this, SLOT(goToDiscoveryView()));

    BTUI_ASSERT_X( ret, "bt-main-view", "discover action can't connect" ); 

    // load tool bar actions

    mAllAction = static_cast<HbAction*>( mLoader->findObject( "allAction" ) );

    BTUI_ASSERT_X( mAllAction, "bt-main-view", "All action missing" ); 

    ret = connect(mAllAction, SIGNAL(triggered()), this, SLOT(allActionTriggered()));

    BTUI_ASSERT_X( ret, "bt-main-view", "all action can't connect" ); 

    // load tool bar actions

    mPairAction = static_cast<HbAction*>( mLoader->findObject( "pairedAction" ) );

    BTUI_ASSERT_X( mPairAction, "bt-main-view", "Pair action missing" ); 

    ret = connect(mPairAction, SIGNAL(triggered()), this, SLOT(pairActionTriggered()));

    BTUI_ASSERT_X( ret, "bt-main-view", "pair action can't connect" ); 

    mDataForm = qobject_cast<HbDataForm *>( mLoader->findWidget( "dataForm" ) );

    BTUI_ASSERT_X( mDataForm != 0, "bt-main-view", "dataForm not found" ); 

    // load menu

    HbMenu *optionsMenu = qobject_cast<HbMenu *>(mLoader->findWidget("viewMenu"));

    BTUI_ASSERT_X( optionsMenu != 0, "bt-main-view", "Options menu not found" );   

    this->setMenu(optionsMenu);

    HbMenu *menu = this->menu();

    mRemovePairedDevices = menu->addAction(hbTrId("txt_bt_opt_remove_paired_devices"));

    mSubMenu = new HbMenu(hbTrId("txt_bt_opt_remove"));

    mSubMenu->addAction(hbTrId("txt_bt_opt_remove_sub_all_devices"));

    mSubMenu->addAction(hbTrId("txt_bt_opt_remove_sub_paired_devices"));

    mSubMenu->addAction(hbTrId("txt_bt_opt_remove_sub_blocked_devices"));

    // update display when setting data changed

    ret = connect(mSettingModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), 

            this, SLOT(updateSettingItems(QModelIndex,QModelIndex)));

    BTUI_ASSERT_X( ret, "BtCpUiMainView::BtCpUiMainView", "can't connect dataChanged" );

    QModelIndex top = mSettingModel->index( BtSettingModel::LocalBtNameRow, 0 );

    QModelIndex bottom = mSettingModel->index( BtSettingModel::AllowedInOfflineRow, 0 );

    // update name, power and visibility rows

    updateSettingItems( top, bottom );

    //Handle Visibility Change User Interaction

    ret = connect(mVisibilityMode, SIGNAL(currentIndexChanged (int)), 

            this, SLOT(visibilityChanged (int)));

    // create other views

    createViews();

    mCurrentView = this;

    mCurrentViewId = MainView;

    mMainFilterModel = new BtuiModelSortFilter(this);

    mMainFilterModel->setSourceModel( mDeviceModel );

    mDeviceList->setModel(mMainFilterModel);

    updateDeviceListFilter(BtuiPaired);

	    // List view item

    BtCpUiMainListViewItem *prototype = new BtCpUiMainListViewItem(mDeviceList);

    prototype->setModelSortFilter(mMainFilterModel);

    mDeviceList->setItemPrototype(prototype);

}

/*!

    Destructs the BtCpUiMainView.

 */

BtCpUiMainView::~BtCpUiMainView()

{

    delete mLoader; // Also deletes all widgets that it constructed.

    mMainWindow->removeView(mSearchView);

    mMainWindow->removeView(mDeviceView);

	if (mAbstractDelegate) {

        delete mAbstractDelegate;

    }

}

/*! 

    from base class, initialize the view

 */

void BtCpUiMainView::activateView(const QVariant& value, bool fromBackButton )

{

    Q_UNUSED(value);

    Q_UNUSED(fromBackButton);

    //Reset the device list when returning to the view, as it may have been invalidated by the device view

    mMainFilterModel->setSourceModel( mDeviceModel );

    mDeviceList->setModel(mMainFilterModel);

}

/*! 

    From base class. Handle resource before the current view is deactivated.

 */

void BtCpUiMainView::deactivateView()

{

}

void BtCpUiMainView::goToDiscoveryView()

{

    changeView( SearchView, false );

}

void BtCpUiMainView::goToDeviceView(const QModelIndex& modelIndex)

{

    //the QModelIndex of the selected device should be given as parameter here 

    QVariant params;

    params.setValue(modelIndex);

    changeView( DeviceView, false, params );

}

Qt::Orientation BtCpUiMainView::orientation()

{

    return mOrientation;

}

void BtCpUiMainView::changeBtLocalName()

{

    //Error handling has to be done.  

    if (!mAbstractDelegate) {

        mAbstractDelegate = BtDelegateFactory::newDelegate(BtDelegate::DeviceName, 

                mSettingModel, mDeviceModel); 

        connect( mAbstractDelegate, SIGNAL(commandCompleted(int,QVariant)), this, SLOT(btNameDelegateCompleted(int,QVariant)) );

        mAbstractDelegate->exec(mDeviceNameEdit->text ());

    }

    else {

        setPrevBtLocalName();

    }

}

void BtCpUiMainView::setPrevBtLocalName()

{

    //ToDo: Should we notify user this as Error...?

    //HbNotificationDialog::launchDialog(hbTrId("Error"));

    QModelIndex index = mSettingModel->index( BtSettingModel::LocalBtNameRow,0 );

    mDeviceNameEdit->setText( mSettingModel->data(

            index,BtSettingModel::settingDisplayRole).toString() );

}

void BtCpUiMainView::btNameDelegateCompleted(int status, QVariant param)

{

    if(KErrNone == status) {

        mDeviceNameEdit->setText(param.toString());

    }

    else {

        setPrevBtLocalName();

    }

    //Error handling has to be done.    

    if (mAbstractDelegate)

    {

        disconnect(mAbstractDelegate);

        delete mAbstractDelegate;

        mAbstractDelegate = 0;

    }

}

void BtCpUiMainView::visibilityChanged (int index)

{

    QList<QVariant> list;

    VisibilityMode mode = indexToVisibilityMode(index);

    list.append(QVariant((int)mode));

    if( BtTemporary == VisibilityMode(mode) ) {

        //Right now hardcoded to 5 Mins.

        list.append(QVariant(5));

    }

    //Error handling has to be done.    

    if ( !mAbstractDelegate ) {

        mAbstractDelegate = BtDelegateFactory::newDelegate(BtDelegate::Visibility, 

                mSettingModel, mDeviceModel); 

        connect( mAbstractDelegate, SIGNAL(commandCompleted(int)), this, SLOT(visibilityDelegateCompleted(int)) );

        mAbstractDelegate->exec(list);

    }

    else {

        setPrevVisibilityMode();

    }

}

void BtCpUiMainView::setPrevVisibilityMode()

{

    QModelIndex index = mSettingModel->index( BtSettingModel::VisibilityRow, 0 );

    mVisibilityMode->setCurrentIndex ( visibilityModeToIndex((VisibilityMode)

                mSettingModel->data(index,BtSettingModel::SettingValueRole).toInt()) );

}

void BtCpUiMainView::allActionTriggered()

{

    HbMenu *menu = this->menu();

    menu->removeAction(mRemovePairedDevices);

    mRemoveDevices = menu->addMenu( mSubMenu );

    updateDeviceListFilter(BtuiAll);

}

void BtCpUiMainView::pairActionTriggered()

{

    HbMenu *menu = this->menu();

    menu->removeAction(mRemoveDevices);

    mRemovePairedDevices = menu->addAction(hbTrId("txt_bt_opt_remove_paired_devices"));

    updateDeviceListFilter(BtuiPaired);

}

void BtCpUiMainView::updateDeviceListFilter(BtCpUiMainView::filterType filter)

{

    mMainFilterModel->clearDeviceMajorFilters();

    switch (filter) {

        case BtuiAll:

            mDataForm->setHeading(hbTrId("txt_bt_subhead_bluetooth_all_devices"));

            mPairAction->setEnabled(true);

            mAllAction->setEnabled(false);

            mMainFilterModel->addDeviceMajorFilter(

                    BtuiDevProperty::InRegistry, 

                    BtuiModelSortFilter::AtLeastMatch);

            break;

        case BtuiPaired:

            mDataForm->setHeading(hbTrId("txt_bt_subhead_bluetooth_paired_devices"));

            mPairAction->setEnabled(false);

            mAllAction->setEnabled(true);

            mMainFilterModel->addDeviceMajorFilter(

                    BtuiDevProperty::InRegistry | BtuiDevProperty::Bonded, 

                    BtuiModelSortFilter::AtLeastMatch);

            break;

    }

}

void BtCpUiMainView::visibilityDelegateCompleted(int status)

{

    //This should be mapped to Qt error

    if(KErrNone != status) {

        setPrevVisibilityMode();

    }

    //Error handling has to be done.    

    if (mAbstractDelegate)

    {

        disconnect(mAbstractDelegate);

        delete mAbstractDelegate;

        mAbstractDelegate = 0;

    }

}

// called due to real orientation change event coming from main window

void BtCpUiMainView::changeOrientation( Qt::Orientation orientation )

{

    bool ok = false;

    mOrientation = orientation;

    if( orientation == Qt::Vertical ) {

        // load "portrait" section

        mLoader->load( BTUI_MAINVIEW_DOCML, "portrait", &ok );

        BTUI_ASSERT_X( ok, "bt-main-view", "Invalid docml file: portrait section problem" );

    } else {

        // load "landscape" section

        mLoader->load( BTUI_MAINVIEW_DOCML, "landscape", &ok );

        BTUI_ASSERT_X( ok, "bt-main-view", "Invalid docml file: landscape section problem" );

    }

}

/*!

    Slot for receiving notification of local setting changes from the model.

    Identify the setting changed and update the corresponding UI item.

 */

void BtCpUiMainView::updateSettingItems(const QModelIndex &topLeft, const QModelIndex &bottomRight)

{   

    bool val(false);

    // update only the part of the view specified by the model's row(s)

    for (int i=topLeft.row(); i <= bottomRight.row(); i++) {

        QModelIndex index = mSettingModel->index( i, 0);

        // Distinguish which setting value is changed.

        switch ( i ) {

        case BtSettingModel::LocalBtNameRow :

            mDeviceNameEdit->setText( 

                    mSettingModel->data(index,BtSettingModel::settingDisplayRole).toString() );

            break;

        case BtSettingModel::PowerStateRow:

            val = mSettingModel->data(index, BtSettingModel::SettingValueRole).toBool();

            if (val) {

                HbIcon icon("qtg_mono_bluetooth");

                icon.setIconName("qtg_mono_bluetooth");

                mPowerButton->setIcon(icon);  

            }

            else {

                HbIcon icon("qtg_mono_bluetooth_off");

                icon.setIconName("qtg_mono_bluetooth_off");

                mPowerButton->setIcon(icon);

            }

            break;

        case BtSettingModel::VisibilityRow:

            mVisibilityMode->setCurrentIndex ( visibilityModeToIndex((VisibilityMode)

                    mSettingModel->data(index,BtSettingModel::SettingValueRole).toInt()) );

            break;

        }

    }   

}

/*!

    Slot for receiving notification for user interaction on power state.

    Manually update model data since HbPushButton is not linked to model directly.

 */

void BtCpUiMainView::changePowerState()

{

    QModelIndex index = mSettingModel->index(BtSettingModel::PowerStateRow, 0);

    PowerStateQtValue powerState = (PowerStateQtValue)mSettingModel->data(index, Qt::EditRole).toInt();

    BTUI_ASSERT_X(((powerState == BtPowerOn) || (powerState == BtPowerOff)), 

            "BtCpUiMainView::changePowerState()", "incorrect qt power state");

    if (powerState == BtPowerOff) {

        powerState = BtPowerOn;

    }

    else {

        powerState = BtPowerOff;

    } 

    if (!mAbstractDelegate)//if there is no other delegate running

    { 

        mAbstractDelegate = BtDelegateFactory::newDelegate(BtDelegate::ManagePower, 

                mSettingModel, mDeviceModel ); 

        connect( mAbstractDelegate, SIGNAL(commandCompleted(int)), this, SLOT(powerDelegateCompleted(int)) );

        mAbstractDelegate->exec(QVariant((int)powerState));

    }

}

void BtCpUiMainView::powerDelegateCompleted(int status)

{

    Q_UNUSED(status);

    //ToDo: Error handling here 

    if (mAbstractDelegate)

    {

        disconnect(mAbstractDelegate);

        delete mAbstractDelegate;

        mAbstractDelegate = 0;

    }

    //BTUI_ASSERT_X( status, "bt-main-view", "error in delegate complete" );  

}

/*!

 * Mapping from visibility mode UI row to VisibilityMode

 */

VisibilityMode BtCpUiMainView::indexToVisibilityMode(int index)

{

    VisibilityMode mode = BtVisibilityUnknown;

    switch(index) {

    case UiRowBtHidden:  

        mode = BtHidden;

        break;

    case UiRowBtVisible:  

        mode = BtVisible;

        break;

    case UiRowBtTemporary:  

        mode = BtTemporary;

        break;

    default:

        BTUI_ASSERT_X(false, "BtCpUiMainView::indexToVisibilityMode", "invalid mode");

    }

    return mode;

}

/*!

 * Mapping from VisibilityMode to visibility mode UI row  

 */

int BtCpUiMainView::visibilityModeToIndex(VisibilityMode mode)

{

    int uiRow = UiRowBtUnknown;

    switch(mode) {

    case BtHidden:  

        uiRow = UiRowBtHidden;

        break;

    case BtVisible:  

        uiRow = UiRowBtVisible;

        break;

    case BtTemporary:  

        uiRow = UiRowBtTemporary;

        break;

    default:

        BTUI_ASSERT_X(false, "BtCpUiMainView::visibilityModeToIndex", "invalid mode");

    }

    return uiRow;

}

/*!