/*

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

 * Copyright (C) 2010 University of Szeged

 *

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include "BrowserWindow.h"

#include <WebKit2/WKPageNamespace.h>

#include <WebKit2/qwkpage.h>

static QWKPage* createNewPage(QWKPage* page)

{

    return page;

}

BrowserView::BrowserView(QWidget* parent)

    : QGraphicsView(parent)

    , m_item(0)

{

    m_context.adopt(WKContextGetSharedProcessContext());

    WKRetainPtr<WKPageNamespaceRef> pageNamespace(AdoptWK, WKPageNamespaceCreate(m_context.get()));

    m_item = new QGraphicsWKView(pageNamespace.get(), QGraphicsWKView::Simple, 0);

    setScene(new QGraphicsScene(this));

    scene()->addItem(m_item);

    setFrameShape(QFrame::NoFrame);

    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    connect(m_item, SIGNAL(titleChanged(QString)), this, SLOT(setWindowTitle(QString)));

    m_item->page()->setCreateNewPageFunction(createNewPage);

}

void BrowserView::resizeEvent(QResizeEvent* event)

{

    QGraphicsView::resizeEvent(event);

    QRectF rect(QPoint(0, 0), event->size());

    m_item->setGeometry(rect);

    scene()->setSceneRect(rect);

}

void BrowserView::load(const QUrl& url)

{

#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)

    return m_item->load(QUrl::fromUserInput(url.toString()));

#else

    return m_item->load(url);

#endif

}

QGraphicsWKView* BrowserView::view() const

{

    return m_item;

}

BrowserWindow::BrowserWindow()

{

    m_menu = new QMenuBar();

    m_browser = new BrowserView();

    m_addressBar = new QLineEdit();

    m_menu->addAction("Quit", this, SLOT(close()));

    m_browser->setFocus(Qt::OtherFocusReason);

    connect(m_addressBar, SIGNAL(returnPressed()), SLOT(changeLocation()));

    connect(m_browser->view(), SIGNAL(loadProgress(int)), SLOT(loadProgress(int)));

    connect(m_browser->view(), SIGNAL(titleChanged(const QString&)), SLOT(titleChanged(const QString&)));

    connect(m_browser->view(), SIGNAL(urlChanged(const QUrl&)), SLOT(urlChanged(const QUrl&)));

    QToolBar* bar = addToolBar("Navigation");

    bar->addAction(m_browser->view()->page()->action(QWKPage::Back));

    bar->addAction(m_browser->view()->page()->action(QWKPage::Forward));

    bar->addAction(m_browser->view()->page()->action(QWKPage::Reload));

    bar->addAction(m_browser->view()->page()->action(QWKPage::Stop));

    bar->addWidget(m_addressBar);

    this->setMenuBar(m_menu);

    this->setCentralWidget(m_browser);

    m_browser->setFocus(Qt::OtherFocusReason);

}

void BrowserWindow::load(const QString& url)

{

    m_addressBar->setText(url);

    m_browser->load(QUrl(url));

}

void BrowserWindow::changeLocation()

{

    QString string = m_addressBar->text();

    m_browser->load(string);

}

void BrowserWindow::loadProgress(int progress)

{

    QColor backgroundColor = QApplication::palette().color(QPalette::Base);

    QColor progressColor = QColor(120, 180, 240);

    QPalette pallete = m_addressBar->palette();

    if (progress <= 0 || progress >= 100)

        pallete.setBrush(QPalette::Base, backgroundColor);

    else {

        QLinearGradient gradient(0, 0, width(), 0);

        gradient.setColorAt(0, progressColor);

        gradient.setColorAt(((double) progress) / 100, progressColor);

        if (progress != 100)

            gradient.setColorAt((double) progress / 100 + 0.001, backgroundColor);

        pallete.setBrush(QPalette::Base, gradient);

    }

    m_addressBar->setPalette(pallete);

}

void BrowserWindow::titleChanged(const QString& title)

{

    setWindowTitle(title);

}

void BrowserWindow::urlChanged(const QUrl& url)

{

    m_addressBar->setText(url.toString());

}

BrowserWindow::~BrowserWindow()

{

    delete m_addressBar;

    delete m_browser;

    delete m_menu;

}