/*

* Copyright (c) 2009 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:

*     The source file of the file dialog implement

*

*/

#include "fmfiledialog_p.h"

#include "fmfilewidget.h"

#include "fmcommon.h"

#include "hbfontspec.h"

#include <hbaction.h>

#include <hbpushbutton.h>

#include <hblabel.h>

#include <hblineedit.h>

#include <QGraphicsLinearLayout>

#define backButtonIcon  ":image/qtg_indi_status_back.svg"

/*!

    constructor

*/

FmFileDialogPrivate::FmFileDialogPrivate( FmFileDialog *fileDialog ) :

    mFileDialog( fileDialog ),

    mHeadingWidget( 0 ),

    mCurrentPathLabel( 0 ),

    mUpButton( 0 ),

    mTitleLabel( 0 ),

    mContentWidget( 0 ),

    mContentLayout( 0 ),

    mFileWidget( 0 ),

    mOkAction( 0 ),

    mCancelAction( 0 ),

    mFileNameTitleLabel( 0 ),

    mFileNameLineEdit( 0 )

{

 }

/*!

    destructor

*/

FmFileDialogPrivate::~FmFileDialogPrivate()

{

}

/*!

    init

    \param directory .

*/

void FmFileDialogPrivate::init( const FmFileDialogArgs &args )

{

    mArgs = args;

    setProperties();

    createHeadingWidget();

    createContentWidget();

    createBottomWidget();

    if( !mFileDialog->primaryAction() && !mFileDialog->secondaryAction() ) {

        createAndSetActions(mFileDialog->tr("Ok"),mFileDialog->tr("Cancel"));

    }

    makeConnections();

    setRootPath( mArgs.mDirectory );

    mFileWidget->setModelFilter( mArgs.mDirFilters );

    mFileWidget->setNameFilters( mArgs.mNameFilters );

}

/*!

    createAndSetActions

    \param primaryActionText

           secondaryActionText

*/

void FmFileDialogPrivate::createAndSetActions(const QString & primaryActionText,

                                                       const QString & secondaryActionText)

{

    // Create action for ok button and assign it to the primary action of popup

    mOkAction = new HbAction( primaryActionText, mFileDialog );

    Q_ASSERT( mOkAction );

    mFileDialog->setPrimaryAction( mOkAction );

    // Create action for cancel button and assign it to the secondary action of popup

    mCancelAction = new HbAction( secondaryActionText, mFileDialog );

    Q_ASSERT( mCancelAction );

    mFileDialog->setSecondaryAction( mCancelAction );

}

/*!

    setProperties

    sets the properties of the file dialog like timeout,

    Dismiss policy,modal etc.

*/

void FmFileDialogPrivate::setProperties()

{

    // set the file dialog as Modal.

    mFileDialog->setModal(true);

    // no dismiss for File dialog.

    mFileDialog->setDismissPolicy( HbPopup::NoDismiss );

    // File dialog will not time out.

    mFileDialog->setTimeout( HbPopup::NoTimeout );

}

/*!

    makeConnections

*/

void FmFileDialogPrivate::makeConnections()

{

    mFileDialog->connect( mUpButton,SIGNAL( clicked() ),

        mFileDialog, SLOT( _q_handleUpButton() ) );

    if( mFileNameLineEdit ) {

        mFileDialog->connect( mFileNameLineEdit, SIGNAL( textChanged( QString ) ),

            mFileDialog, SLOT( _q_handleTextChanged( QString ) ) );

    }

    mFileDialog->connect( mFileWidget, SIGNAL( pathChanged( QString ) ),

        mFileDialog, SLOT( _q_handlePathChanged( QString ) ) );

    mFileDialog->connect( mFileWidget, SIGNAL( fileActivated( QString ) ),

        mFileDialog, SLOT( _q_handleFileActivated( QString ) ) );

}

/*!

    creates the heading wiget elements that include

    a label for showing the current path and a push button for

    going to the parent directory.

*/

void FmFileDialogPrivate::createHeadingWidget()

{

    mHeadingWidget = new HbWidget( mFileDialog );

    QGraphicsLinearLayout *headingLayout = new QGraphicsLinearLayout;

    headingLayout->setOrientation(Qt::Horizontal);

    mHeadingWidget->setLayout(headingLayout);

    QGraphicsLinearLayout *titleLayout = new QGraphicsLinearLayout;

    titleLayout->setOrientation(Qt::Vertical);    

    mTitleLabel = new HbLabel();

    if( mArgs.mTitle.isEmpty() ){

        mTitleLabel->setPlainText( QString( FmPlaceholderString ) );

    } else {

        mTitleLabel->setPlainText( mArgs.mTitle );

    }

    mCurrentPathLabel = new HbLabel( QString( FmPlaceholderString ) );

    mCurrentPathLabel->setElideMode(Qt::ElideRight);

    mUpButton  = new HbPushButton;

    mUpButton->setIcon(HbIcon(backButtonIcon));

    titleLayout->addItem( mTitleLabel );

    titleLayout->setAlignment( mTitleLabel, Qt::AlignLeft);

    titleLayout->addItem( mCurrentPathLabel );

    titleLayout->setAlignment( mCurrentPathLabel, Qt::AlignLeft);

    headingLayout->addItem(titleLayout);

    headingLayout->addItem( mUpButton ) ;

    headingLayout->setAlignment(mUpButton,Qt::AlignRight);

    mFileDialog->setHeadingWidget( mHeadingWidget );

}

/*!

    Creates the content widget. It includes the listview and model.

*/

void FmFileDialogPrivate::createContentWidget()

{

    mContentWidget = new HbWidget( mFileDialog );

    mContentLayout = new QGraphicsLinearLayout;

    mContentLayout->setOrientation(Qt::Vertical);

    mContentWidget->setLayout( mContentLayout );

    mFileWidget = new FmFileWidget( mContentWidget );

    mContentLayout->addItem( mFileWidget );

    mFileDialog->setContentWidget( mContentWidget );

}

/*!

    Creates the content widget. It includes the listview and model.

*/

void FmFileDialogPrivate::createBottomWidget()

{

    if( mArgs.mDialogMode == GetDirMode ) {

        return;

    }

    HbWidget *bottomWidget = new HbWidget( mContentWidget );

    mContentLayout->addItem( bottomWidget );

    QGraphicsLinearLayout *bottomLayout = new QGraphicsLinearLayout;

    bottomLayout->setOrientation( Qt::Horizontal );

    mFileNameTitleLabel = new HbLabel( mFileDialog->tr( "file name:" ), bottomWidget );

    bottomLayout->addItem( mFileNameTitleLabel );

    mFileNameLineEdit = new HbLineEdit( bottomWidget );

    bottomLayout->addItem( mFileNameLineEdit );    

    bottomWidget->setLayout( bottomLayout );

}

void FmFileDialogPrivate::checkUpButton()

{

    QString currentPath = mFileWidget->currentPath().absoluteFilePath();

    bool isPreventDirUp = mArgs.mOptions & FmFileDialog::PreventDirUp;

    if( mFileWidget->currentViewType() == FmFileWidget::DirView ) {

        if( isPreventDirUp &&

            mArgs.mDirectory.contains( currentPath, Qt::CaseInsensitive ) ) {

            // disable up when client lock top leve folder

            mUpButton->setEnabled( false );

        } else {

            mUpButton->setEnabled( true );

        }

    } else {

        // disable up button when at drive view

        mUpButton->setEnabled( false );

    }

}

void FmFileDialogPrivate::checkBottomFileWidget()

{

    switch( mArgs.mDialogMode )

    {

    case GetDirMode:

        break;

    case GetFileMode:

        if( mFileNameLineEdit ){

            mFileNameLineEdit->setReadOnly( true );

        }

        break;

    case SaveFileMode:

        if( mFileWidget->currentPath().absoluteFilePath().isEmpty() ) {

            mFileNameLineEdit->setReadOnly( true );

        } else {

            mFileNameLineEdit->setReadOnly( false );

        }

        break;

    }

}

void FmFileDialogPrivate::checkActions()

{

    switch( mArgs.mDialogMode )

    {

    case GetDirMode:

        if( mFileWidget->currentPath().absoluteFilePath().isEmpty() ) {

            mOkAction->setDisabled( true );

        } else {

            mOkAction->setDisabled( false );

        }

        break;

    case GetFileMode:

    case SaveFileMode:

        if( mFileWidget->currentPath().absoluteFilePath().isEmpty() ||

            ( mFileNameLineEdit && mFileNameLineEdit->text().isEmpty() ) ) {

            mOkAction->setDisabled( true );

        } else {

            mOkAction->setDisabled( false );

        }

        break;

    default:

        Q_ASSERT( false );

    }

}

void FmFileDialogPrivate::_q_handleUpButton()

{

    bool isPreventDirUp = mArgs.mOptions & FmFileDialog::PreventDirUp;

    QString currentPath = mFileWidget->currentPath().absoluteFilePath();

    if( isPreventDirUp &&

        mArgs.mDirectory.contains( currentPath, Qt::CaseInsensitive ) ) {

        return;

    } else {

        mFileWidget->cdUp();

    }

}

void FmFileDialogPrivate::_q_handleTextChanged(const QString &text)

{

    Q_UNUSED( text );

    checkActions();

}

void FmFileDialogPrivate::_q_handlePathChanged( const QString &path )

{

    if( path.isEmpty() ) {

        mCurrentPathLabel->setPlainText( QString( FmPlaceholderString ) );

    } else {

        mCurrentPathLabel->setPlainText( path );

    }

    if( mFileNameLineEdit && mArgs.mDialogMode == GetFileMode ) {

        mFileNameLineEdit->setText( QString() );

    }

    checkUpButton();

    checkBottomFileWidget();

    checkActions();

}

void FmFileDialogPrivate::_q_handleFileActivated( const QString &path )

{

    if( mFileNameLineEdit ) {

        mFileNameLineEdit->setText( path );

    }

    checkActions();

}

QString FmFileDialogPrivate::currentPath() const

{

    return mFileWidget->currentPath().absoluteFilePath();

}

QString FmFileDialogPrivate::selectedFile() const

{

    return mFileNameLineEdit->text();

}

void FmFileDialogPrivate::setRootPath( const QString &pathName )

{

    mFileWidget->setRootPath( pathName );

}

bool FmFileDialogPrivate::isOkAction( HbAction *action )

{

    if( mOkAction == action ) {

        return true;

    }

    return false;

}

#include "moc_fmfiledialog.cpp"