/*

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

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#include "WebPlugin.h"

#include <QHBoxLayout>

#include <QListWidget>

#include <QListWidgetItem>

#include <QPainter>

#include <QtPlugin>

#include <QPushButton>

#include <QStyledItemDelegate>

#include <QVBoxLayout>

static const int gMaemoListItemSize = 70;

static const int gMaemoListPadding = 38;

static const int gMaemoMaxVisibleItems = 5;

void Popup::populateList()

{

    QListWidgetItem* listItem;

    for (int i = 0; i < m_data.itemCount(); ++i) {

        if (m_data.itemType(i) == QWebSelectData::Option) {

            listItem = new QListWidgetItem(m_data.itemText(i));

            m_list->addItem(listItem);

            listItem->setSelected(m_data.itemIsSelected(i));

        } else if (m_data.itemType(i) == QWebSelectData::Group) {

            listItem = new QListWidgetItem(m_data.itemText(i));

            m_list->addItem(listItem);

            listItem->setSelected(false);

            listItem->setFlags(Qt::NoItemFlags);

        }

    }

    connect(m_list, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(onItemSelected(QListWidgetItem*)));

}

void Popup::onItemSelected(QListWidgetItem* item)

{

    if (item->flags() != Qt::NoItemFlags)

        emit itemClicked(m_list->row(item));

}

WebPopup::WebPopup()

    : m_popup(0)

{

}

WebPopup::~WebPopup()

{

    if (m_popup)

        m_popup->deleteLater();

}

Popup* WebPopup::createSingleSelectionPopup(const QWebSelectData& data)

{

    return new SingleSelectionPopup(data);

}

Popup* WebPopup::createMultipleSelectionPopup(const QWebSelectData& data)

{

    return new MultipleSelectionPopup(data);

}

Popup* WebPopup::createPopup(const QWebSelectData& data)

{

    Popup* result = data.multiple() ? createMultipleSelectionPopup(data) : createSingleSelectionPopup(data);

    connect(result, SIGNAL(finished(int)), this, SLOT(popupClosed()));

    connect(result, SIGNAL(itemClicked(int)), this, SLOT(itemClicked(int)));

    return result;

}

void WebPopup::show(const QWebSelectData& data)

{

    if (m_popup)

        return;

    m_popup = createPopup(data);

    m_popup->show();

}

void WebPopup::hide()

{

    if (!m_popup)

        return;

    m_popup->accept();

}

void WebPopup::popupClosed()

{

    if (!m_popup)

        return;

    m_popup->deleteLater();

    m_popup = 0;

    emit didHide();

}

void WebPopup::itemClicked(int idx)

{

    emit selectItem(idx, true, false);

}

SingleSelectionPopup::SingleSelectionPopup(const QWebSelectData& data)

    : Popup(data)

{

    const char* title = "select";

    if (qstrcmp(title, "weba_ti_texlist_single"))

        setWindowTitle(QString::fromUtf8(title));

    else

        setWindowTitle("Select item");

    QHBoxLayout* hLayout = new QHBoxLayout(this);

    hLayout->setContentsMargins(0, 0, 0, 0);

    m_list = new QListWidget(this);

    populateList();

    hLayout->addSpacing(gMaemoListPadding);

    hLayout->addWidget(m_list);

    hLayout->addSpacing(gMaemoListPadding);

    connect(m_list, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(accept()));

    const int visibleItemCount = (m_list->count() > gMaemoMaxVisibleItems) ? gMaemoMaxVisibleItems : m_list->count();

    resize(size().width(), visibleItemCount * gMaemoListItemSize);

}

class MultipleItemListDelegate : public QStyledItemDelegate {

public:

    MultipleItemListDelegate(QObject* parent = 0)

           : QStyledItemDelegate(parent)

    {

        tickMark = QIcon::fromTheme("widgets_tickmark_list").pixmap(48, 48);

    }

    void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const

    {

        QStyledItemDelegate::paint(painter, option, index);

        if (option.state & QStyle::State_Selected)

            painter->drawPixmap(option.rect.width() - tickMark.rect().width(), option.rect.y() + (option.rect.height() / 2 - tickMark.rect().height() / 2), tickMark);

    }

private:

    QPixmap tickMark;

};

MultipleSelectionPopup::MultipleSelectionPopup(const QWebSelectData& data)

    : Popup(data)

{

    const char* title = "select";

    if (qstrcmp(title, "weba_ti_textlist_multi"))

        setWindowTitle(QString::fromUtf8(title));

    else

        setWindowTitle("Select items");

    QHBoxLayout* hLayout = new QHBoxLayout(this);

    hLayout->setContentsMargins(0, 0, 0, 0);

    m_list = new QListWidget(this);

    m_list->setSelectionMode(QAbstractItemView::MultiSelection);

    populateList();

    MultipleItemListDelegate* delegate = new MultipleItemListDelegate(this);

    m_list->setItemDelegate(delegate);

    hLayout->addSpacing(gMaemoListPadding);

    hLayout->addWidget(m_list);

    QVBoxLayout* vLayout = new QVBoxLayout();

    const int visibleItemCount = (m_list->count() > gMaemoMaxVisibleItems) ? gMaemoMaxVisibleItems : m_list->count();

    vLayout->addSpacing((visibleItemCount - 1) * gMaemoListItemSize);

    QPushButton* done = new QPushButton(this);

    title = "done";

    if (qstrcmp(title, "wdgt_bd_done"))

        done->setText(QString::fromUtf8(title));

    else

        done->setText("Done");

    done->setMinimumWidth(178);

    vLayout->addWidget(done);

    hLayout->addSpacing(8);

    hLayout->addLayout(vLayout);

    hLayout->addSpacing(18);

    connect(done, SIGNAL(clicked()), this, SLOT(accept()));

    resize(size().width(), visibleItemCount * gMaemoListItemSize);

}

bool WebPlugin::supportsExtension(Extension extension) const

{

    if (extension == MultipleSelections)

        return true;

    if (extension == Notifications)

#if ENABLE_NOTIFICATIONS

        return true;

#else

        return false;

#endif

    return false;

}

Q_EXPORT_PLUGIN2(platformplugin, WebPlugin)