larpon/quickdownload

Easy way to download files with Qt QML and C++

QuickDownload

Easy way to download files with Qt QML and C++

Features

• Asynchronous downloads
• Supports Qt URL schemes (http, https, ftp, custom)
• Uses QSaveFile = no corrupt or partial file downloads.
• Possible to set custom NetworkAccessManager via C++
• Self-register QML type. Plug'n'play.

Install

qpm

Setup qpm as described in the Usage for App Developers section

qpm install com.blackgrain.qml.quickdownload

Manual install

Plugin

cd /path/to/projects
git clone [email protected]:Larpon/QuickDownload.git

Open quickdownload.pro in QtCreator and build. The result should be a *.so plugin file.

Linked

Clone from github

cd /path/to/your/qt/project/vendor/folder
git clone [email protected]:Larpon/QuickDownload.git

Include quickdownload.pri in your projects .pro file

include(<path to extensions/vendor folder>/QuickDownload/quickdownload.pri)

NOTE quickdownload.pri auto-register the QML type Download via the Q_CORE_STARTUP_FUNCTION macro.

Usage

import QtQuick 2.0
import com.blackgrain.qml.quickdownload 1.0

Item {

    Download {
        id: download1

        url: "http://placehold.it/350x150"
        destination: "file:///tmp/test.png"

        running: true

        followRedirects: true
        onRedirected: console.log('Redirected',url,'->',redirectUrl)

        onStarted: console.log('Started download',url)
        onError: console.error(errorString)
        onProgressChanged: console.log(url,'progress:',progress)
        onFinished: console.info(url,'done')

    }

    Download {
        id: download2

        url: "ftp://speedtest.tele2.net/5MB.zip"
        destination: "file:///tmp/QuickDownload_test.zip"

        overwrite: true
        running: !download1.running

        onStarted: console.log('Started download',url)
        onError: console.error(errorString)
        onProgressChanged: console.log(url,'progress:',progress)
        onFinished: console.info(url,'done')
    }

    Download {
        id: download3

        url: "ftp://demo:[email protected]/readme.txt"
        destination: "file:///tmp/QuickDownload_test_readme.txt"

        overwrite: true
        running: true

        onStarted: console.log('Started download',url)
        onError: console.error(errorString)
        onProgressChanged: console.log(url,'progress:',progress)
        onFinished: console.info(url,'done')
    }

}

quickdownload's Issues

Fix double start signal emit

Qml module not found.

Installed the package with qpm:

E:\Users\Me> qpm install com.blackgrain.qml.quickdownload
INFO: Package com.blackgrain.qml.quickdownload has a different license (MIT) than it's dependant (NONE).
Installing [email protected]

And added an import:

import com.blackgrain.qml.quickdownload 1.0

However, Qt Designer can't find the package:

qrc:/main.qml:3:1: module "com.blackgrain.qml.quickdownload" is not installed

Fix or make optional to emit start signal upon redirect

Multiple dynamic downloads

Hi @larpon, I just came across this project and was wondering something. So in my application the user needs to download multiple files: the user clicks a button and the download starts, the user clicks the button again and a new download starts again (up to 15 times). Now would this be possible with your plugin? I see that you need instantiate a Download class in QML for each download, but how can I dynamically generate a Download each time I need it? Something like

Button{
    function downloadSomething(url)
    {
    // how to create a Download dynamically???
    }
    id: button
    onClicked: downloadSomethingNew(webview.url)
}

Provide Linux binary

Please provide a Linux binary. I think this would be a good use case for linuxdeployqt.

Error: Operation canceled when downloading a file from Google Drive

I tried to download a file from Google Drive with a direct public link but it failed. This is the link for testing.

https://drive.google.com/uc?export=download&id=1eOH1vv5SAoiZK1JWLbOp2biPocockWjg