QTfrontend/ui/page/pagedata.cpp
author unc0rr
Sun, 02 Dec 2012 01:25:11 +0400
changeset 8178 8bd087478b48
parent 8059 07661fb20586
child 8876 bd8df772dbe6
permissions -rw-r--r--
Fix QSettings problems: - Reopen file in ReadOnly mode if it was open in ReadWrite mode and is being read. This is needed for stupid QSettings which opens file in ReadWrite mode just to call readAll() on it. - Implement setSize(0)
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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#include <QGridLayout>
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#include <QPushButton>
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#include <QNetworkAccessManager>
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#include <QNetworkRequest>
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#include <QNetworkReply>
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#include <QFileInfo>
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#include <QFileDialog>
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#include <QDebug>
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#include <QProgressBar>
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#include <QBuffer>
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#include "pagedata.h"
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#include "databrowser.h"
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#include "hwconsts.h"
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#include "DataManager.h"
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#include "FileEngine.h"
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QLayout * PageDataDownload::bodyLayoutDefinition()
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{
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    QGridLayout * pageLayout = new QGridLayout();
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    pageLayout->setColumnStretch(0, 1);
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    pageLayout->setColumnStretch(1, 1);
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    pageLayout->setColumnStretch(2, 1);
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    web = new DataBrowser(this);
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    pageLayout->addWidget(web, 0, 0, 1, 3);
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    progressBarsLayout = new QVBoxLayout();
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    pageLayout->addLayout(progressBarsLayout, 1, 0, 1, 3);
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    return pageLayout;
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}
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void PageDataDownload::connectSignals()
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{
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    connect(web, SIGNAL(anchorClicked(QUrl)), this, SLOT(request(const QUrl&)));
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    connect(this, SIGNAL(goBack()), this, SLOT(onPageLeave()));
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}
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PageDataDownload::PageDataDownload(QWidget* parent) : AbstractPage(parent)
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{
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    initPage();
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    web->setOpenLinks(false);
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//    fetchList();
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    m_contentDownloaded = false;
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}
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void PageDataDownload::request(const QUrl &url)
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{
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    QUrl finalUrl;
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    if(url.host().isEmpty())
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        finalUrl = QUrl("http://www.hedgewars.org" + url.path());
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    else
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        finalUrl = url;
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    if(url.path().endsWith(".hwp") || url.path().endsWith(".zip"))
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    {
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        qWarning() << "Download Request" << url.toString();
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        QString fileName = QFileInfo(url.toString()).fileName();
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        QNetworkRequest newRequest(finalUrl);
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        newRequest.setAttribute(QNetworkRequest::User, fileName);
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        QNetworkAccessManager *manager = new QNetworkAccessManager(this);
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        QNetworkReply *reply = manager->get(newRequest);
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        connect(reply, SIGNAL(finished()), this, SLOT(fileDownloaded()));
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        connect(reply, SIGNAL(downloadProgress(qint64, qint64)), this, SLOT(downloadProgress(qint64, qint64)));
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        QProgressBar *progressBar = new QProgressBar(this);
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        progressBarsLayout->addWidget(progressBar);
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        progressBars.insert(reply, progressBar);
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    }
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    else
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    {
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        qWarning() << "Page Request" << url.toString();
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        QNetworkRequest newRequest(finalUrl);
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        QNetworkAccessManager *manager = new QNetworkAccessManager(this);
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        QNetworkReply *reply = manager->get(newRequest);
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        connect(reply, SIGNAL(finished()), this, SLOT(pageDownloaded()));
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    }
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}
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void PageDataDownload::pageDownloaded()
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{
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    QNetworkReply * reply = qobject_cast<QNetworkReply *>(sender());
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    if(reply)
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    {
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        QString html = QString::fromUtf8(reply->readAll());
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        int begin = html.indexOf("<!-- BEGIN -->");
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        int end = html.indexOf("<!-- END -->");
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        if(begin != -1 && begin < end)
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        {
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            html.truncate(end);
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            html.remove(0, begin);
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        }
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        web->setHtml(html);
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    }
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}
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void PageDataDownload::fileDownloaded()
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{
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    QNetworkReply * reply = qobject_cast<QNetworkReply *>(sender());
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    if(reply)
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    {
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        QProgressBar *progressBar = progressBars.value(reply, 0);
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        if(progressBar)
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        {
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            progressBars.remove(reply);
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            progressBar->deleteLater();
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        }
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        QDir extractDir(*cfgdir);
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        extractDir.cd("Data");
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        QString fileName = extractDir.filePath(QFileInfo(reply->url().path()).fileName());
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        if(fileName.endsWith(".zip"))
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            fileName = fileName.left(fileName.length() - 4) + ".hwp";
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        QFile out(fileName);
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        if(!out.open(QFile::WriteOnly))
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        {
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            qWarning() << "out.open():" << out.errorString();
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            return ;
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        }
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        out.write(reply->readAll());
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        out.close();
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        // now mount it
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        FileEngineHandler::mount(fileName);
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    }
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}
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void PageDataDownload::downloadProgress(qint64 bytesRecieved, qint64 bytesTotal)
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{
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    QNetworkReply * reply = qobject_cast<QNetworkReply *>(sender());
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    if(reply)
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    {
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        QProgressBar *progressBar = progressBars.value(reply, 0);
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        if(progressBar)
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        {
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            progressBar->setValue(bytesRecieved);
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            progressBar->setMaximum(bytesTotal);
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        }
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    }
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}
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void PageDataDownload::fetchList()
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{
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    request(QUrl("http://hedgewars.org/content.html"));
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}
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void PageDataDownload::onPageLeave()
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{
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    if (m_contentDownloaded)
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    {
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        m_contentDownloaded = false;
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        //DataManager::instance().reload();
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    }
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}