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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++ #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]