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** This file is part of the demos of the Qt Toolkit.

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

#include "BrowserWindow.h"

#include <QtCore>

#include <QtGui>

#include "BrowserView.h"

#include "HomeView.h"

BrowserWindow::BrowserWindow()

    : QWidget()

    , m_homeView(0)

    , m_browserView(0)

{

    m_timeLine = new QTimeLine(300, this);

    m_timeLine->setCurveShape(QTimeLine::EaseInOutCurve);

    QTimer::singleShot(0, this, SLOT(initialize()));

}

void BrowserWindow::initialize()

{

    m_homeView = new HomeView(this);

    m_browserView = new BrowserView(this);

    m_homeView->hide();

    m_homeView->resize(size());

    m_homeView->move(0, 0);

    m_browserView->hide();

    m_browserView->resize(size());

    m_browserView->move(0, 0);

    connect(m_homeView, SIGNAL(addressEntered(QString)), SLOT(gotoAddress(QString)));

    connect(m_homeView, SIGNAL(urlActivated(QUrl)), SLOT(navigate(QUrl)));

    connect(m_browserView, SIGNAL(menuButtonClicked()), SLOT(showHomeView()));

    m_homeView->setVisible(false);

    m_browserView->setVisible(false);

    slide(0);

    connect(m_timeLine, SIGNAL(frameChanged(int)), SLOT(slide(int)));

}

// from Demo Browser

QUrl guessUrlFromString(const QString &string)

{

    QString urlStr = string.trimmed();

    QRegExp test(QLatin1String("^[a-zA-Z]+\\:.*"));

    // Check if it looks like a qualified URL. Try parsing it and see.

    bool hasSchema = test.exactMatch(urlStr);

    if (hasSchema) {

        QUrl url = QUrl::fromEncoded(urlStr.toUtf8(), QUrl::TolerantMode);

        if (url.isValid())

            return url;

    }

    // Might be a file.

    if (QFile::exists(urlStr)) {

        QFileInfo info(urlStr);

        return QUrl::fromLocalFile(info.absoluteFilePath());

    }

    // Might be a shorturl - try to detect the schema.

    if (!hasSchema) {

        int dotIndex = urlStr.indexOf(QLatin1Char('.'));

        if (dotIndex != -1) {

            QString prefix = urlStr.left(dotIndex).toLower();

            QString schema = (prefix == QString("ftp")) ? prefix.toLatin1() : QString("http");

            QString location = schema + "://" + urlStr;

            QUrl url = QUrl::fromEncoded(location.toUtf8(), QUrl::TolerantMode);

            if (url.isValid())

                return url;

        }

    }

    // Fall back to QUrl's own tolerant parser.

    QUrl url = QUrl::fromEncoded(string.toUtf8(), QUrl::TolerantMode);

    // finally for cases where the user just types in a hostname add http

    if (url.scheme().isEmpty())

        url = QUrl::fromEncoded("http://" + string.toUtf8(), QUrl::TolerantMode);

    return url;

}

void BrowserWindow::gotoAddress(const QString &address)

{

    m_browserView->navigate(guessUrlFromString(address));

    showBrowserView();

}

void BrowserWindow::navigate(const QUrl &url)

{

    m_browserView->navigate(url);

    showBrowserView();

}

void BrowserWindow::slide(int pos)

{

    m_browserView->move(pos, 0);

    m_homeView->move(pos - width(), 0);

    m_browserView->show();

    m_homeView->show();

}

void BrowserWindow::showHomeView()

{

    if (m_timeLine->state() != QTimeLine::NotRunning)

        return;

    m_timeLine->setFrameRange(0, width());

    m_timeLine->start();

    m_homeView->setFocus();

}

void BrowserWindow::showBrowserView()

{

    if (m_timeLine->state() != QTimeLine::NotRunning)

        return;

    m_timeLine->setFrameRange(width(), 0);

    m_timeLine->start();

    m_browserView->setFocus();

}

void BrowserWindow::keyReleaseEvent(QKeyEvent *event)

{

    QWidget::keyReleaseEvent(event);

    if (event->key() == Qt::Key_F3) {

        if (m_homeView->isVisible())

            showBrowserView();

        else

            showHomeView();

    }

}

void BrowserWindow::resizeEvent(QResizeEvent *event)

{

    if (m_homeView)

        m_homeView->resize(size());

    if (m_browserView)

        m_browserView->resize(size());

}