How to implement Drag&Drop files in Qt 5.4 QML application in OS X

ribtoks

Global purpose is just to Drag&Drop a file to QML App and get real file path.

Qt DropArea has drop.urls property which is list of NSUrl from OS X. Qt has QUrl::toNSUrl method (which as i understood i have to use in objective-c), but I don't know how to integrate it with my other (C++) code.

Can somebody give me an example?

SGaist

Hi,

Mixing C++ and Objective-C is pretty simple, have a look at the QtMacExtras sources for example

ribtoks

Yes, I saw them, thank you, but I've no idea how to translate NSUrl to local filepath using Qt Mac tricks. Also, wasn't able to google it.
If you can, please provide any minor example..

SGaist

I meant it for you to see how to mix the two together.
To get a QUrl from a NSUrl you can use
@
QUrl myUrl = QUrl::fromNSURL(yourNSURL);
@

ribtoks

Hm.. Thank you. I'll try it. I'll post back when I'll have some results..

ribtoks

Ok, solved now. SGaist, Thank you very much!

Code which works:
osxnsurlhelper.h
@
#ifndef OSXNSURLHELPER
#define OSXNSURLHELPER

#include <QUrl>

namespace Helpers {
QUrl fromNSUrl(const QUrl &url);
}

#endif // OSXNSURLHELPER
@

osxnsurlhelper.mm
@
#include "osxnsurlhelper.h"
#include <Foundation/Foundation.h>

namespace Helpers {
QUrl fromNSUrl(const QUrl &url) {
NSURL *nsUrl = url.toNSURL();
NSString *path = nsUrl.path;

    QString qtString = QString::fromNSString(path);
    return QUrl::fromLocalFile(qtString&#41;;
}

}
@

.pro
@
OBJECTIVE_SOURCES +=
Helpers/osxnsurlhelper.mm

LIBS += -framework Foundation
@

SGaist

Why don't you just use

@url.toLocalFile()@

?

ribtoks

https://bugreports.qt.io/browse/QTBUG-40449
In OS X it doesn't work now.. I use it in Windows and Linux without problems..

SGaist

Right, forgot about that one...