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

**

** 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 HbInput 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 "hbinputsmileypicker.h"

#include <hbgridview.h>

#include <hbview.h>

#include <hbwidget.h>

#include <QStandardItemModel>

#include <QStandardItem>

#include <QFileInfoList>

#include <QDir>

#include <HbMainWindow>

#include <HbFrameItem>

#include <HbFrameDrawer>

#include <hbdialog_p.h>

#include <hbinputregioncollector_p.h>

const int HbLandscapeRows = 3;

const int HbLandscapeColumns = 7;

const int HbPortraitRows = 4;

const int HbPortraitColumns = 5;

/// @cond

class HbInputSmileyPickerPrivate: public HbDialogPrivate

{

    Q_DECLARE_PUBLIC(HbInputSmileyPicker)

public:

    HbInputSmileyPickerPrivate(int rows, int columns);

    ~HbInputSmileyPickerPrivate();

    void getSmilies(const QStringList &smileys);

    void _q_activated(const QModelIndex &index);

    // member variables.

    HbGridView *mView;

    QStandardItemModel *mModel;

};

HbInputSmileyPickerPrivate::HbInputSmileyPickerPrivate(int rows, int columns)

    : mView(0), mModel(0)

{

    Q_UNUSED(rows);

    Q_UNUSED(columns);

    // we should make sure that it comes above vkb

    setPriority(HbPopupPrivate::VirtualKeyboard + 1);

    // create a view and set the rows and columns.

    mView = new HbGridView();

    mView->setScrollDirections(Qt::Horizontal);

    mView->setHorizontalScrollBarPolicy(HbScrollArea::ScrollBarAsNeeded);

    mModel = new QStandardItemModel(mView);

    mView->setModel(mModel);

}

HbInputSmileyPickerPrivate::~HbInputSmileyPickerPrivate()

{

}

void HbInputSmileyPickerPrivate::getSmilies(const QStringList &smileys)

{

    mModel->clear();

    QStandardItem *item = 0;

    foreach(const QString &smiley, smileys) {

        item = new QStandardItem();

        item->setData(HbIcon(smiley), Qt::DecorationRole);

        mModel->appendRow(item);

    }

}

void HbInputSmileyPickerPrivate::_q_activated(const QModelIndex &index)

{

    Q_Q(HbInputSmileyPicker);

    if (!hidingInProgress) {

        HbIcon smileyIcon = index.model()->data(index, Qt::DecorationRole).value<HbIcon>();

        emit q->selected(smileyIcon.iconName());

        q->close();

    }

}

/// @endcond

/*!

@proto

@hbinput

\class HbInputSmileyPicker

\brief Smiley picker widget

Smiley picker is a dialog containing a grid of emoticons in the form of icons.

It emits selected signal with corresponding emoticon text once a smiley is clicked.

\sa HbDialog

\sa HbGridView

*/

HbInputSmileyPicker::HbInputSmileyPicker(int rows, int columns, QGraphicsItem *parent, QStringList smileys)

    : HbDialog(*new HbInputSmileyPickerPrivate(rows, columns), parent)

{

    Q_D(HbInputSmileyPicker);

    HbInputRegionCollector::instance()->attach(this);

    // Make sure the smiley picker never steals focus.

    setFlag(QGraphicsItem::ItemIsPanel, true);

    d->mActivePopup = false;

    setActive(false);

    if (!rows || !columns) {

        if (mainWindow()->orientation() == Qt::Horizontal) {

            rows = HbLandscapeRows;

            columns = HbLandscapeColumns;

        } else {

            rows = HbPortraitRows;

            columns = HbPortraitColumns;

        }

    }

    d->mView->setRowCount(rows);

    d->mView->setColumnCount(columns);

    // set dialog properties

    setFocusPolicy(Qt::ClickFocus);

    setDismissPolicy(TapAnywhere);

    setBackgroundFaded(false);

    setTimeout(NoTimeout);

    setContentWidget(d->mView);

    // extract smilies.

    d->getSmilies(smileys);

    // connect signals

    connect(d->mView, SIGNAL(activated(QModelIndex)), this, SLOT(_q_activated(QModelIndex)));

}

/*!

Destructs the object.

*/

HbInputSmileyPicker::~HbInputSmileyPicker()

{

}

/*!

This a virtual functions in QGraphicsWidget. It is called whenever the smiley picker widgets is shown.

Here in this function we are are scrolling to a position where we can see

first row and column

*/

void HbInputSmileyPicker::showEvent(QShowEvent *event)

{

    Q_D(HbInputSmileyPicker);

    QStandardItem *item = d->mModel->item(0);

    // when ever we do a show smiley picker.

    // we should scroll back to the first position.

    // otherwise we will show the smiley grid in previous state.

    if (item) {

        d->mView->scrollTo(item->index());

    }

    HbDialog::showEvent(event);

}

#include "moc_hbinputsmileypicker.cpp"