/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
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** modification, are permitted provided that the following conditions are
** met:
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**     notice, this list of conditions and the following disclaimer.
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**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
**     of its contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
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****************************************************************************/
#include "mainwindow.h"
#include "imageanalyzer.h"

#include <QWebFrame>
#include <QWebElementCollection>
#include <QNetworkDiskCache>

/*
 * Default Constructor
 */
//! [MainWindow - constructor]
MainWin::MainWin(QWidget * parent) : QWebView(parent)
{
    m_network = new QNetworkAccessManager(this);
    m_cache = new QNetworkDiskCache(this);
    m_cache->setCacheDirectory(QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/imageanalyzer");
    m_cache->setMaximumCacheSize(1000000); //set the cache to 10megs
    m_network->setCache(m_cache);
    page()->setNetworkAccessManager(m_network);

    //! The object we will expose to JavaScript engine:
    m_analyzer = new ImageAnalyzer(m_cache, this);

    // Signal is emitted before frame loads any web content:
    QObject::connect(page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()),
                     this, SLOT(addJSObject()));

    // qrc:// URLs refer to resources. See imagenalayzer.qrc
    QUrl startURL = QUrl("qrc:/index.html");

    // Load web content now!
    setUrl(startURL);
}
//! [MainWindow - constructor]

//! [MainWindow - addJSObject]
void MainWin::addJSObject() {
    // Add pAnalyzer to JavaScript Frame as member "imageAnalyzer".
    page()->mainFrame()->addToJavaScriptWindowObject(QString("imageAnalyzer"), m_analyzer);
}
//! [MainWindow - addJSObject]
