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Improved FileDownloader

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This commit is contained in:
Atlante45 2014-03-18 13:55:14 -07:00
parent 3cd4761fa7
commit 6f50ea0faa
2 changed files with 44 additions and 12 deletions
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43
libraries/shared/src/FileDownloader.cpp
View file

@ -9,12 +9,15 @@
#include <QUrl>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QEventLoop>
#include <QTimer>
#include "FileDownloader.h"
FileDownloader::FileDownloader(const QUrl dataURL, QObject* parent) : QObject(parent) {
FileDownloader::FileDownloader(const QUrl dataURL, QObject* parent) :
QObject(parent),
_done(false)
{
connect(&_networkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(processReply(QNetworkReply*)));
QNetworkRequest request(dataURL);
@ -22,21 +25,41 @@ FileDownloader::FileDownloader(const QUrl dataURL, QObject* parent) : QObject(pa
}
void FileDownloader::processReply(QNetworkReply *reply) {
if (reply->error() != QNetworkReply::NoError) {
emit done(reply->error());
return;
if (reply->error() == QNetworkReply::NoError) {
_downloadedData = reply->readAll();
}
_downloadedData = reply->readAll();
reply->deleteLater();
emit done(QNetworkReply::NoError);
_done = true;
emit done(reply->error());
}
QByteArray FileDownloader::download(const QUrl dataURL) {
void FileDownloader::waitForFile(int timeout) {
QTimer timer;
QEventLoop loop;
connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
connect(this, SIGNAL(done(QNetworkReply::NetworkError)), &loop, SLOT(quit()));
if (!_done) {
if (timeout > 0) {
timer.start(timeout);
}
loop.exec();
}
}
QByteArray FileDownloader::download(const QUrl dataURL, int timeout) {
QTimer timer;
QEventLoop loop;
connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit));
FileDownloader downloader(dataURL);
connect(&downloader, SIGNAL(done()), &loop, SLOT(quit()));
connect(&downloader, SIGNAL(done(QNetworkReply::NetworkError)), &loop, SLOT(quit()));
if (timeout > 0) {
timer.start(timeout);
}
loop.exec();
return downloader.getData();
}

13
libraries/shared/src/FileDownloader.h
View file

@ -12,13 +12,20 @@
#include <QObject>
#include <QNetworkAccessManager>
#include <QNetworkReply>
class FileDownloader : public QObject {
Q_OBJECT
public:
FileDownloader(const QUrl dataURL, QObject* parent = NULL);
QByteArray getData() const { return _downloadedData; }
static QByteArray download(const QUrl dataURL);
void waitForFile(int timeout = 0);
QByteArray getData() const { return _downloadedData; }
bool done() { return _done; }
static QByteArray download(const QUrl dataURL, int timeout = 0);
signals:
void done(QNetworkReply::NetworkError);
@ -29,6 +36,8 @@ private slots:
private:
QNetworkAccessManager _networkAccessManager;
QByteArray _downloadedData;
bool _done;
};