Show/hide (start/stop) application via DBus (Harmattan)

[Habolog]

Hello!
I bumped into a problem launching native Nokia Gallery (N950/N9 phone) via DBus.
I used such code:

QProcess::execute("/usr/bin/dbus-send --type=method_call --dest=com.nokia.Gallery /com/nokia/Gallery com.nokia.Gallery.LaunchApplication");

It works fine on the first run. But if Gallery is already running nothing is happening. I expected that Gallery will come to top and my application will minimize.

I tried to use trick from N900 (Maemo5), I called top_application instead LaunchApplication, but attempt is failed, behavior isn't changed...

Question: how to move Nokia Gallery to top from my application if Gallery is already running?

[gnuton]

Why don't you use Qt.openUrlExternally(file.jpg) [FOR QML] or QDesktopServices::setUrlHandler (..) [FOR C++] instead of using QProcess+DBus.
You solution looks quite weird to me.

[Habolog]

My goal isn't to open some file but just to run Gallery application. For that reason I use DBus instead QDesktopServices.
Or QDesktopServices may run executable files? I tried to use it like this:

QDesktopServices::openUrl(QUrl("/usr/bin/gallery"));

and like this too:

QDesktopServices::openUrl(QUrl("file://usr/bin/gallery"));

But both attempts ended with debug message:

no default action for the given PARAMS

[savaj]

QProcess::start() may do your job.

[Habolog]

QProcess::start() may do your job.

It works not exactly as I need. To open already open gallery I have to close process and start it again - it's not fast operation.

if(process.isOpen())
            process.close();
        process.start("/usr/bin/gallery");

Maybe there exist more flexible solution?

Anyway, thanks for your hint!

[calvaris]

Hello!
I bumped into a problem launching native Nokia Gallery (N950/N9 phone) via DBus.
I used such code:

QProcess::execute("/usr/bin/dbus-send --type=method_call --dest=com.nokia.Gallery /com/nokia/Gallery com.nokia.Gallery.LaunchApplication");

It works fine on the first run. But if Gallery is already running nothing is happening. I expected that Gallery will come to top and my application will minimize.

Question: how to move Nokia Gallery to top from my application if Gallery is already running?

I faced the same problem and solved it using libcontentaction. I wrote a blog post about how I solved it.