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/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2009 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 "urlloader.h"
#include <QFile>
#include <QDebug>
#include <QWebPage>
UrlLoader::UrlLoader(QWebFrame* frame, const QString& inputFileName, int timeoutSeconds, int extraTimeSeconds)
: m_frame(frame)
, m_stdOut(stdout)
, m_loaded(0)
, m_numFramesLoading(0)
{
m_checkIfFinishedTimer.setInterval(200);
m_checkIfFinishedTimer.setSingleShot(true);
connect(&m_checkIfFinishedTimer, SIGNAL(timeout()), this, SLOT(checkIfFinished()));
// loadStarted and loadFinished on QWebPage is emitted for each frame/sub-frame
connect(m_frame->page(), SIGNAL(loadStarted()), this, SLOT(frameLoadStarted()));
connect(m_frame->page(), SIGNAL(loadFinished(bool)), this, SLOT(frameLoadFinished()));
if (timeoutSeconds) {
m_timeoutTimer.setInterval(timeoutSeconds * 1000);
m_timeoutTimer.setSingleShot(true);
connect(frame, SIGNAL(loadStarted()), &m_timeoutTimer, SLOT(start()));
connect(&m_timeoutTimer, SIGNAL(timeout()), this, SLOT(loadNext()));
}
if (extraTimeSeconds) {
m_extraTimeTimer.setInterval(extraTimeSeconds * 1000);
m_extraTimeTimer.setSingleShot(true);
connect(this, SIGNAL(pageLoadFinished()), &m_extraTimeTimer, SLOT(start()));
connect(&m_extraTimeTimer, SIGNAL(timeout()), this, SLOT(loadNext()));
} else
connect(this, SIGNAL(pageLoadFinished()), this, SLOT(loadNext()));
loadUrlList(inputFileName);
}
void UrlLoader::loadNext()
{
m_timeoutTimer.stop();
m_extraTimeTimer.stop();
m_checkIfFinishedTimer.stop();
m_numFramesLoading = 0;
QString qstr;
if (getUrl(qstr)) {
QUrl url(qstr, QUrl::StrictMode);
if (url.isValid()) {
m_stdOut << "Loading " << qstr << " ......" << ++m_loaded << endl;
m_frame->load(url);
} else
loadNext();
} else
disconnect(m_frame, 0, this, 0);
}
void UrlLoader::checkIfFinished()
{
if (!m_numFramesLoading)
emit pageLoadFinished();
}
void UrlLoader::frameLoadStarted()
{
++m_numFramesLoading;
m_checkIfFinishedTimer.stop();
}
void UrlLoader::frameLoadFinished()
{
Q_ASSERT(m_numFramesLoading > 0);
--m_numFramesLoading;
// Once our frame has finished loading, wait a moment to call loadNext for cases
// where a sub-frame starts loading or another frame is loaded through JavaScript.
m_checkIfFinishedTimer.start();
}
void UrlLoader::loadUrlList(const QString& inputFileName)
{
QFile inputFile(inputFileName);
if (inputFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream stream(&inputFile);
QString line;
while (true) {
line = stream.readLine();
if (line.isNull())
break;
m_urls.append(line);
}
} else {
qDebug() << "Can't open list file";
exit(0);
}
m_index = 0;
inputFile.close();
}
bool UrlLoader::getUrl(QString& qstr)
{
if (m_index == m_urls.size())
return false;
qstr = m_urls[m_index++];
return true;
}
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