QDownloader

Qdownloader is a service that simplify the download of remote resources (http(s)) locally. Build around 2 classes, it can be used in cpp or qml

simple, just include the pri into your pro file
made of only 2 simple classes
register the service from a single method call
multiple asynchronous download
qml ready, just register the service, start a download with javascript, listen for connection or use one of the property
take care of all the connection and download process
notification ready (only sailfish os as v1.0)

Some example

You can use IconProvider from both Qt and Qml

Registering the service

// from the main process
QScopedPointer app(SailfishApp::application(argc, argv));
QScopedPointer view(SailfishApp::createView());

// register the locator into qml with the default service name
QDownloaderService::init(view->rootContext());

from Qml

function myDownloadFunction() {
	if(qdownloader.start(sourceurl, targeturl, "my notification message") === false ) {
		// error detected before download (file already exist, r/w error etc...)
        // let's do something      
	}
}

Connections {
	target: qdownloader
	onDownloading: {
		// url : url for the remote resource
		// read : bytes read
		// total : total byte for the file
	}

	onSuccess: {
		// url : url for the remote resource
		// target : url for the local file
	}

	onError: {
		// url : url for the remote resource
		// status : error code -> QNetworkReply::NetworkError
	}
}

from QT

// register slot / signal to get response
connect(&QDownloaderService::getInstance(), SIGNAL(success(QUrl,QString)), this, SLOT(success(QUrl,QString)));
connect(&QDownloaderService::getInstance(), SIGNAL(error(QUrl,QNetworkReply::NetworkError)), this, SLOT(error(QUrl,QNetworkReply::NetworkError)));

// start a download
QDOWNSERVICE.start( sourceurl, targeturl, "my notification message" );

wherever your start a download, qml or cpp, all connections will receive callback
For additional information check the sample program (Full Sailfish app)

Install

Install is really simple and only require to add the lib to your project. Steps assume you use the default names and locations

Copy the src/qdownloader directory into your src directory
Edit the project's .pro file and include qdownloader.pri reference

From Github or inside the .tgz you will find a full qtcreator project.

Download

You can get QDownloader from the github repository

Editing .pro file

Here the .pro file for the sample application

TARGET = harbour-test_qdownload

CONFIG += sailfishapp

include(src/qdownloader/qdownloader.pri)

SOURCES += src/harbour-test_qdownload.cpp

DISTFILES += qml/harbour-test_qdownload.qml \
    qml/cover/*.qml \
    qml/pages/*.qml \
    qml/composents/*.qml \
    rpm/harbour-test_qdownload.changes \
    rpm/harbour-test_qdownload.spec \
    rpm/harbour-test_qdownload.yaml \
    harbour-test_qdownload.desktop

SAILFISHAPP_ICONS = 86x86 108x108 128x128 256x256