/*

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

 * All rights reserved.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, version 2.1 of the License.

 *

 * This program 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 Lesser General Public License for more details.

 *

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

 * along with this program.  If not,

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

 *

 * Description:

 * This class extends WebChromeContainerSnippet class 

 *

 */

#include "ActionButton.h"

#include "ActionButtonSnippet.h"

#include "ChromeRenderer.h"

#include "ChromeWidget.h"

#include "NativeChromeItem.h"

#include "TitleUrlContainerSnippet.h"

#include "UrlSearchSnippet.h"

#include "WebChromeSnippet.h"

#include "Utilities.h"

#include "QGraphicsPixmapItem"

#include "ChromeEffect.h"

#define BACKGROUND_GRADIENT_START "#232323"

#define BACKGROUND_GRADIENT_END "#000000"

#include <QDebug>

namespace GVA {

// Need to read this from the platform later

#define ICONWIDTH 65

#define ICONHEIGHT 44

TitleUrlContainerItem::TitleUrlContainerItem(ChromeSnippet * snippet, ChromeWidget * chrome, QGraphicsItem * parent)

: NativeChromeItem(snippet, parent)

, m_chrome(chrome)

{

    setProperties();    

    // Create the view port widget

    m_viewPort = new QGraphicsWidget(this);

    m_viewPort->setFlags(QGraphicsItem::ItemClipsChildrenToShape);

    // Create title-url widget(still by the name UrlSearchItem)

    m_urlTileWidget = new GUrlSearchItem(snippet, chrome, m_viewPort); 

    QPixmap dividerPixmap;

    dividerPixmap.load(":/chrome/bedrockchrome/urlsearch.snippet/icons/URL_search_divider.png", "PNG");

    m_dividerImage = new QGraphicsPixmapItem(dividerPixmap, m_viewPort);

    QAction * backAction = new QAction(this);

    connect(backAction, SIGNAL(triggered()), m_chrome, SIGNAL(goToBackground()));

    m_backStepButton = new ActionButton(snippet, m_viewPort);

    m_backStepButton->setAction(backAction);

    m_backStepButton->setActiveOnPress(true);

    m_backStepButton->addIcon(":/chrome/bedrockchrome/urlsearch.snippet/icons/backstep.png", QIcon::Normal);

    m_backStepButton->addIcon(":/chrome/bedrockchrome/urlsearch.snippet/icons/backstep_pressed.png", QIcon::Active);

    // Monitor resize events.

    safe_connect(m_chrome->renderer(), SIGNAL(chromeResized()), this, SLOT(onChromeResize()));

    safe_connect(m_urlTileWidget, SIGNAL(changeEditMode(bool)), this, SLOT(changeLayout(bool)));

}

TitleUrlContainerItem::~TitleUrlContainerItem()

{

}

void TitleUrlContainerItem::setProperties() {

  m_pen.setWidth(1);

  m_pen.setBrush(QBrush(QColor(Qt::black)));

  m_grad.setColorAt(0, BACKGROUND_GRADIENT_START);

  m_grad.setColorAt(1, BACKGROUND_GRADIENT_END);

}

void TitleUrlContainerItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)

{

  Q_UNUSED(option)

  Q_UNUSED(widget)

  painter->save();

  painter->setRenderHint(QPainter::Antialiasing);

  painter->setPen(m_pen);

  if (snippet()->enabled()) {

      painter->fillRect(boundingRect(), QBrush(m_grad));

  }

  else {

      painter->fillRect(boundingRect(), QColor(Qt::gray));

      painter->setOpacity(ChromeEffect::disabledOpacity);

      painter->fillRect(boundingRect(), ChromeEffect::disabledColor);

  }

  // top border

  painter->setPen(QPen(QColor(53,53,53)));

  painter->drawLine(boundingRect().x(), boundingRect().y(), boundingRect().x() + boundingRect().width(), boundingRect().y());

  // bottom border

  painter->setPen(QPen(QColor(76,76,78)));

  painter->drawLine(boundingRect().x(), boundingRect().y() + boundingRect().height(), boundingRect().x() + boundingRect().width(), boundingRect().y() + boundingRect().height());

  // right border

  painter->setPen(QPen(QColor(0,0,0)));

  painter->drawLine(boundingRect().x() + boundingRect().width(), boundingRect().y(), boundingRect().x() + boundingRect().width(), boundingRect().y() + boundingRect().height());

  // left border

  painter->setPen(m_pen);

  QLinearGradient grad = QLinearGradient();

  grad.setColorAt(0, QColor(41,41,41));

  grad.setColorAt(0.5, QColor(83,83,84));

  grad.setColorAt(1, QColor(2,2,2));

  painter->fillRect(QRect(boundingRect().x(), boundingRect().y(), 1, boundingRect().height()), QBrush(grad));

  painter->restore();

  NativeChromeItem::paint(painter, option, widget);

}

void TitleUrlContainerItem::onChromeResize() {

    QWebElement we = m_snippet->element();

    QRectF g = we.geometry();

    QGraphicsWidget::resize(g.width(), g.height());

}

void TitleUrlContainerItem::resizeEvent(QGraphicsSceneResizeEvent * event)

{

    QSizeF size = event->newSize();

    qreal width = size.width();

    qreal height = size.height();

    m_viewPort->setGeometry(

            0,

            0,

            width,

            height);

    m_backStepButton->setGeometry(

                width - ICONWIDTH, 

                (height - ICONHEIGHT)/2,

                ICONWIDTH,

                ICONHEIGHT);

    // When we first get resize event, the widget is not yet set to visible by

    // Ginebra. If the widget is not visible and for later resize events, if back-step

    // button is visible, set the width of url-title widget taking into account

    // the width of back-step button

    if ((!this->isVisible()) || m_backStepButton->isVisible()) {

        width =  width - ICONWIDTH - m_dividerImage->boundingRect().width();

    }

    m_urlTileWidget->setGeometry(0,

                0,

                width,

                height);

    m_dividerImage->setPos(m_urlTileWidget->rect().width() + 1, (height - m_dividerImage->boundingRect().height())/2);

}

void TitleUrlContainerItem::changeLayout(bool editMode){

    qreal width = m_viewPort->geometry().width();

    qreal height = m_viewPort->geometry().height();

    // If we are changing to edit mode, we need to hide the back-step button 

    if (editMode) {

        m_backStepButton->hide();

        m_dividerImage->hide();

    }

    else {

        // show back-step button and re-layout the widgets

        m_backStepButton->show();

        m_dividerImage->show();

        width = width - ICONWIDTH - m_dividerImage->boundingRect().width();

    }

    m_urlTileWidget->setGeometry(0,

                0,

                width,

                height);

}

QString TitleUrlContainerItem::url() const

{

    return m_urlTileWidget->url();

}

// TitleUrlContainerSnippet class

TitleUrlContainerSnippet::TitleUrlContainerSnippet(const QString & elementId, ChromeWidget * chrome,

                                                   QGraphicsWidget * widget, const QWebElement & element)

  : ChromeSnippet(elementId, chrome, widget, element)

{

}

TitleUrlContainerSnippet::~TitleUrlContainerSnippet()

{

}

TitleUrlContainerSnippet * TitleUrlContainerSnippet::instance(const QString& elementId, ChromeWidget * chrome, const QWebElement & element)

{

    TitleUrlContainerSnippet * that = new TitleUrlContainerSnippet( elementId, chrome, 0, element );

    that->setChromeWidget( new TitleUrlContainerItem(that, chrome));

    return that;

}

QString TitleUrlContainerSnippet::url() const

{

    TitleUrlContainerItem const *urlContainer;

    urlContainer = dynamic_cast<TitleUrlContainerItem const *> (constWidget());

    return urlContainer->url();

}

} // end of namespace GVA