/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbWidgets module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include "hbnamespace_p.h"

#include <hbmessagebox.h>

#include "hbmessagebox_p.h"

#include <hbstyleoptionmessagebox.h>

#include <hbmainwindow.h>

#include <hbaction.h>

#include <hblineedit.h>

#include <hbscrollbar.h>

#include <hbscrollarea.h>

#include <QGraphicsItem>

#include <QGraphicsSceneMouseEvent>

#include <QTimer>

#include <QTextOption>

class HbStyle;

class HbMessageBoxEditor : public HbLineEdit

{

public:

	HbMessageBoxEditor(QGraphicsItem* parent =0) : HbLineEdit(parent)

	{

        setReadOnly(true);

        setCursorVisibility(Hb::TextCursorHidden);

		HbScrollArea *scroll = scrollArea();

		scroll->setVerticalScrollBarPolicy(HbScrollArea::ScrollBarAsNeeded);

		clearContextMenuFlag(Hb::ShowTextContextMenuOnLongPress);

		clearContextMenuFlag(Hb::ShowTextContextMenuOnSelectionClicked);

		primitive(HbStyle::P_LineEdit_frame_normal)->setVisible(false);		

	}

	HbScrollBar * getScrollBar() const

	{

		HbScrollArea *scroll = scrollArea();

		return scroll->verticalScrollBar();

	}

	void focusInEvent(QFocusEvent * event)

	{

		 HbAbstractEdit::focusInEvent(event);

	}

};

class HbMessageBoxContentWidget : public HbWidget

{

    Q_OBJECT

public:

    HbMessageBoxPrivate *d;

    HbMessageBoxEditor *mTextEdit;

    QGraphicsItem *mIconItem;

    HbMessageBoxContentWidget(HbMessageBoxPrivate *priv,

        QGraphicsItem* parent =0) : HbWidget(parent),d(priv),mTextEdit(0),mIconItem(0)

    {

        mTextEdit = new HbMessageBoxEditor(this);

        mIconItem = style()->createPrimitive(HbStyle::P_MessageBox_icon, this);

        setProperty("hasIcon",true);

        HbStyle::setItemName(mTextEdit, "text");

        HbStyle::setItemName(mIconItem, "icon");

    }

    enum { Type = HbPrivate::ItemType_MessageNoteContentWidget };

    int type() const { return Type; }

};

/*

    constructor

*/

HbMessageBoxPrivate::HbMessageBoxPrivate() :

    HbDialogPrivate(),

    mIcon(),

    mIconAlignment(Qt::AlignCenter),

	mMessageBoxContentWidget(0),

	mMessageBoxType(HbMessageBox::MessageTypeInformation),

	mIconVisible(true),

	gestureFilter(0),

	gesture(0)

{

}

/*

    destructor

*/

HbMessageBoxPrivate::~HbMessageBoxPrivate()

{

}

/*

    init()

*/

void HbMessageBoxPrivate::init()

{

    Q_Q(HbMessageBox);

    switch(mMessageBoxType) {

    case HbMessageBox::MessageTypeInformation:

	case HbMessageBox::MessageTypeWarning:

        q->setTimeout(0);

		mMessageBoxContentWidget = new HbMessageBoxContentWidget( this );

        q->setContentWidget( mMessageBoxContentWidget );

        q->setDismissPolicy(HbPopup::TapAnywhere);

        q->setTimeout( timeoutValue( HbPopup::StandardTimeout ) );

		q->setPrimaryAction(new HbAction(q->tr("OK"), q));

        break;

    case HbMessageBox::MessageTypeQuestion:

		mMessageBoxContentWidget = new HbMessageBoxContentWidget( this );

        q->setContentWidget( mMessageBoxContentWidget );

		q->setDismissPolicy(HbPopup::NoDismiss);

		q->setTimeout(HbPopup::NoTimeout);       

		q->setPrimaryAction(new HbAction(q->tr("Yes"), q));

        q->setSecondaryAction(new HbAction(q->tr("No"), q));

        break;

    }

	gestureFilter = new HbGestureSceneFilter(Qt::LeftButton, q); 

	gesture = new HbGesture(HbGesture::pan,20);

	// Add gestures to gestureFilter for panning 

	gestureFilter->addGesture(gesture);

	QObject::connect(gesture, SIGNAL(panned(QPointF)),

			q, SLOT(_q_closeOnGesture()));

	// Install sceneEvent filter

	q->installSceneEventFilter(gestureFilter);

}

void HbMessageBoxPrivate::_q_closeOnGesture()

{

    Q_Q(HbMessageBox);

    if(dismissPolicy != HbPopup::NoDismiss)

        q->close();

}

/*!

    @beta

    \class HbMessageBox

    \brief HbMessageBox is a graphics widget which shows text message and an icon.

    HbMessageBox is derived from HbDialog that provides most of functionality such as

    modality, and timeouts.

    \enum HbMessageBox::MessageBoxType

    \value \b MessageTypeInformation creates a dialog which will have some information for the user.

		MessageBox will have Ok button and will not be auto dissmissed. The user need to press

		Ok to dismiss.

    \value \b MessageTypeWarning is a simple message dialog with warning icon. The user needs to press Ok

        to dismiss. 

    \value \b MessageTypeQuestion Shows a message dialog with question icon. The user can either confirm or

		reject the dialog. 

*/

/*!

    @beta

    Constructor.

    \param parent An optional parameter.

*/

HbMessageBox::HbMessageBox(MessageBoxType type,QGraphicsItem *parent) : 

    HbDialog(*new HbMessageBoxPrivate, parent)

{

    Q_D(HbMessageBox);

    d->mMessageBoxType = type;

    d->q_ptr = this;

    d->init();

}

/*!

    @beta

    Constructs a new HbMessageBox with \a text and \a parent.

 */

HbMessageBox::HbMessageBox(const QString &text,MessageBoxType type, QGraphicsItem *parent)

    : HbDialog(*new HbMessageBoxPrivate, parent)

{

    Q_D(HbMessageBox);

    d->mMessageBoxType = type;

    d->q_ptr = this;

	d->init();

	d->mMessageBoxContentWidget->mTextEdit->setText(text);

}

/*!

    @beta

    destructor

*/

HbMessageBox::~HbMessageBox()

{

	Q_D(HbMessageBox);

	if(d->gestureFilter)

        removeSceneEventFilter(d->gestureFilter);

}

/*!

    \internal

 */

HbMessageBox::HbMessageBox(HbMessageBoxPrivate &dd, QGraphicsItem *parent) : 

    HbDialog(dd, parent)

{

    Q_D(HbMessageBox);

    d->q_ptr = this;

    d->init();

}

/*!

    @beta

    Provides access to primitives of HbMessageBox. 

    \param primitive is the type of the requested primitive. The available 

    primitives are P_Popup_background, and P_MessageBox_icon.

*/

QGraphicsItem *HbMessageBox::primitive(HbStyle::Primitive primitive) const

{

    Q_D(const HbMessageBox);

    switch (primitive) {

    case HbStyle::P_Popup_background:

            return HbDialog::primitive(primitive);

    case HbStyle::P_MessageBox_icon:

        return d->mMessageBoxContentWidget->mIconItem;

    default:

        return 0;

    }

}

/*!

    @beta

    \reimp

    Initializes \a option with the values from this HbMessageBox.

*/

void HbMessageBox::initStyleOption(HbStyleOptionMessageBox *option) const

{

    Q_D(const HbMessageBox);

    HbDialog::initStyleOption(option);

    option->icon = d->mIcon;

    option->iconAlignment = d->mIconAlignment;

    option->messageBoxType = d->mMessageBoxType;

}

/*!

    @beta

    updatePrimitives.

*/

void HbMessageBox::updatePrimitives()

{

    Q_D(HbMessageBox); 

        HbDialog::updatePrimitives();

    HbStyleOptionMessageBox option;

    initStyleOption(&option);

    if (d->mMessageBoxContentWidget->mIconItem) {

         style()->updatePrimitive(d->mMessageBoxContentWidget->mIconItem, HbStyle::P_MessageBox_icon, &option);

    }

}

/*!

    @beta

    Sets text of the messagebox.

    \sa text()

*/

void HbMessageBox::setText(const QString &text)

{

    Q_D(HbMessageBox);

	if ( text !=  d->mMessageBoxContentWidget->mTextEdit->text() ) {

		d->mMessageBoxContentWidget->mTextEdit->setText(text);

    }

}

/*!

    @beta

    Returns text of the messagebox.

    \sa setText()

*/

QString HbMessageBox::text() const

{

    Q_D(const HbMessageBox);

	return d->mMessageBoxContentWidget->mTextEdit->text();

}

/*!

    @beta

    Sets icon for the messagebox.

    \sa icon()

*/

void HbMessageBox::setIcon(const HbIcon &icon)

{

    Q_D(HbMessageBox);

    if (icon != d->mIcon){

        d->mIcon = icon;

        if (d->mMessageBoxContentWidget->mIconItem) {

            HbStyleOptionMessageBox option;

            initStyleOption(&option);

            style()->updatePrimitive(d->mMessageBoxContentWidget->mIconItem, HbStyle::P_MessageBox_icon, &option);

        }

	}

}

/*!

    @beta

    Returns icon of the messagebox.

    \sa setIcon()

*/

HbIcon HbMessageBox::icon() const

{

    Q_D(const HbMessageBox);

    return d->mIcon;

}

/*!

    @beta

    Sets the icon alignment.

    \param align Qt defined alignment options can used.

    The default value is Qt::AlignCenter.

    \sa mIconAlignment()

*/

void HbMessageBox::setIconAlignment( Qt::Alignment align )

{

    Q_D(HbMessageBox);

    if (align != d->mIconAlignment){

        d->mIconAlignment = align;

        if (d->mMessageBoxContentWidget->mIconItem) {

            HbStyleOptionMessageBox option;

            initStyleOption(&option);

            style()->updatePrimitive(d->mMessageBoxContentWidget->mIconItem, HbStyle::P_MessageBox_icon, &option);

        }

    }

}

/*!

    @beta

    Sets wheather icon is visible or not .

    \param visible the visibility flag

    By default the icon is visible

*/

void HbMessageBox::setIconVisible(bool visible)

{

	Q_D(HbMessageBox);

	if(visible != d->mIconVisible) {

		if(visible) {

			d->mMessageBoxContentWidget->mIconItem->show();

			d->mMessageBoxContentWidget->setProperty("hasIcon",true);

		}

		else {

			d->mMessageBoxContentWidget->mIconItem->hide();

			d->mMessageBoxContentWidget->setProperty("hasIcon",false);

		}

		d->mIconVisible = visible;

		repolish();

	}

}

/*!

    @beta

    Returns the icon visibilty flag

*/   

bool  HbMessageBox::iconVisible() const

{

	Q_D(const HbMessageBox);

	return d->mIconVisible;

}

/*!

    @beta

    Returns the icon alignment.

    \sa setIconAlignment()

*/

Qt::Alignment HbMessageBox::iconAlignment() const

{

    Q_D(const HbMessageBox);

    return d->mIconAlignment;

}

/*!

    reimp.

*/

void HbMessageBox::mousePressEvent(QGraphicsSceneMouseEvent *event )

{

    Q_D(HbMessageBox);

    HbDialog::mousePressEvent(event);

    // disconnecting popups timeline signal slot

    if (d->timeout > 0) {

        QObject::disconnect(d->timeoutTimer(), SIGNAL(timeout()), this, SLOT(_q_timeoutFinished()));

    }	

}

/*!

    \deprecated HbMessageBox::launchQuestionMessageBox(const QString&, const QString&, const QString&, QGraphicsWidget*, QGraphicsScene*, QGraphicsItem*)

        is deprecated. Please use asynchronous launching.

    This is a convenient function to show a default message box with the question and buttons specified.

    this will return true when first button is clicked. false on the second.

    a heading widget can be set ex:

    \code

        HbMessageBox::launchQuestionMessageBox("are you sure?","yes","no",new HbLabel("Delete Confirm"));

    \endcode

*/

bool HbMessageBox::launchQuestionMessageBox(const QString &questionText,

                                            const QString &primaryButtonText,

                                            const QString &secondaryButtonText,

                                            QGraphicsWidget *headWidget,

                                            QGraphicsScene *scene,

                                            QGraphicsItem *parent)

{

    return question( questionText, primaryButtonText, secondaryButtonText, headWidget, scene, parent );

}

/*!

    \deprecated HbMessageBox::launchInformationMessageBox(const QString&, QGraphicsWidget*, QGraphicsScene*, QGraphicsItem*)

        is deprecated. Please use asynchronous launching.

    This is a convenient function to show a default message box with the with informationText.

    optionally a heading widget can be set ex:

    \code

        HbMessageBox::launchInformationMessageBox("new message received",new HbLabel("incoming message"));

    \endcode

*/       

void HbMessageBox::launchInformationMessageBox(const QString &informationText,

                                               QGraphicsWidget *headWidget,

                                               QGraphicsScene *scene,

                                               QGraphicsItem *parent)

{

    information( informationText, headWidget, scene, parent );

}

/*!

    \deprecated HbMessageBox::launchWarningMessageBox(const QString&, QGraphicsWidget*, QGraphicsScene*, QGraphicsItem*)

        is deprecated. Please use asynchronous launching.

    This is a convenient function to show a warning message box.

    optionally a heading widget can be set ex:

    \code

        HbMessageBox::launchWarningMessageBox("charge the phone",new HbLabel("battery low!"));

    \endcode

*/                                                                                            

void HbMessageBox::launchWarningMessageBox(const QString &warningText,

                                           QGraphicsWidget *headWidget,

                                           QGraphicsScene *scene,

                                           QGraphicsItem *parent)

{

    warning( warningText, headWidget, scene, parent );

}

/*!

    \deprecated HbMessageBox::question(const QString&, const QString&, const QString&, QGraphicsWidget*, QGraphicsScene*, QGraphicsItem*)

        is deprecated. Please use asynchronous launching.

    This is a convenient function to show a default message box with the question and buttons specified.

    this will return true when first button is clicked. false on the second.

    a heading widget can be set ex:

    \code

        HbMessageBox::question("are you sure?","yes","no",new HbLabel("Delete Confirm"));

    \endcode

*/

bool HbMessageBox::question(const QString &questionText,

                                            const QString &primaryButtonText,

                                            const QString &secondaryButtonText,

                                            QGraphicsWidget *headWidget,

                                            QGraphicsScene *scene,

                                            QGraphicsItem *parent)

{	

    HbMessageBox *messageBox = new HbMessageBox(HbMessageBox::MessageTypeQuestion, parent);

    if (scene) {

        scene->addItem(messageBox);

    }

    messageBox->setText(questionText);

    HbAction *primaryAction = new HbAction(primaryButtonText);

    messageBox->setPrimaryAction(primaryAction);

    HbAction *secondaryAction = new HbAction(secondaryButtonText);

    messageBox->setSecondaryAction(secondaryAction);

    if(headWidget) {

        messageBox->setHeadingWidget(headWidget);

    }

    HbAction *action = messageBox->exec(); 

    if (action == messageBox->primaryAction() ){