summaryrefslogtreecommitdiffstats
path: root/examples/webkit/imageanalyzer/mainwindow.cpp
blob: 547fe1b321435b1d131571462ce341f8816a08e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * 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.
**   * Neither the name of Nokia Corporation 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.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "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 THE COPYRIGHT
** OWNER 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."
** $QT_END_LICENSE$
**
****************************************************************************/
#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(QDesktopServices::storageLocation(QDesktopServices::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]