MacOS: how to run AppleScript script from a Qt app?

infoctopus

Volker, thank you :) I think that the task is solvable, but not sure about the amount of time/money needed for the solution, even roughly

tk.fs

Hi Volker, I've tried your solution on Mac OS X 10.9.1 using a simple AppleScript to retrieve a mail subject from Apple Mail. The script needs around 1 sec to execute with the AppleScript Editor application, but around 20-30 secs when using QProcess/osascript. Running osascript from a shell window also needs around 1 sec for the script.

Is this a known problem with QProcess or do you have any idea where this massive delay is coming from?

Thanks,

Thomas

janfaroe

I have no problems running OSAScript via QProcess. It's just as snappy as the command line for me. Perhaps you should review your QProcess code? Try a simple shell command as a comparison?

gaojinhsu

The following code cannot succeed to open the proxy settings. but the apple script works fine in AppleScript Editor. Any advice? using Qt 5.2 and OSX10.9
@QString aScript = "tell application "System Preferences"\nactivate\nset current pane to pane "com.apple.preference.network"\n activate\n end tell\n"
"tell application "System Events" to tell process "System Preferences" to tell window 1 \n click button 8 \n"
"click radio button 6 of tab group 1 of sheet 1 \n end tell";

QString osascript = "/usr/bin/osascript";
QStringList processArguments;
processArguments << "-l" << "AppleScript";
QProcess p;
p.start(osascript, processArguments);
p.write(aScript.toUtf8());
p.closeWriteChannel();
p.waitForFinished();@

[quote author="Volker" date="1291398206"]This may give you a start:

@
#include <QApplication>
#include <QProcess>

int main(int argc, char **argv)
{
QApplication a(argc, argv);

QString aScript =
        "tell application \"System Events\"\n"
        "    activate\n"
        "    display dialog \"Hello world\"\n"
        "end tell\n";

QString osascript = "/usr/bin/osascript";
QStringList processArguments;
processArguments << "-l" << "AppleScript";

QProcess p;
p.start(osascript, processArguments);
p.write(aScript.toUtf8());
p.closeWriteChannel();
p.waitForFinished();

}
@[/quote]

janfaroe

What does QProcess::exitStatus() give you after start()? And QProcess::errorString()?

gaojinhsu

QProcess::exitStatus(), 0;
QProcess::errorString() , Unkonwn error;

my code works imperfect ( which is system preferences->Network; but I want it to be system preferences->Network->advanced...->Proxies)

And I find chrome does it in a different way, not applescript maybe.(you could check it out by clicking settings->show advanced settings->change proxy settings)
because I cannot find chrome.app at System Preferences->Security&Privacy->Privacy->Accessibility(Allow the apps below to control youe computer).

janfaroe

I suggest you try debugging in the terminal, where you'd get warnings/errors right away, and work your way from there.

As for Chrome and other browsers: I strongly believe they take their default settings from the system ones, ie. those presented in the System Preferences.

SGaist

Hi,

From a look at osascript's documentation, I would say that you are not feeding it correctly. I think you should be using several -e to build your multiline script.

Hope it helps

janfaroe

Multiline is not a problem, at least not in my case. I'm NL'ing with \n as well. I think QProcess is taking care of that part as long as it's in the argument list.

SGaist

Since you have an example working, can you compare what parameters you give to oascript ? There may be something like a missing "-" to tell oascript to read from stdin

janfaroe

Sure, although it seems very identical to me. I think the problem is in the script itself.

@QStringList args;
QProcess p;
scriptText =
"tell application "iTunes"\n"
"if not (exists user playlist "%1") then\n"
" make new user playlist with properties {name:"%1"}\n"
"end if\n"
"set newFile to (POSIX file "%2")\n"
"set newTrack to (add newFile to playlist "%1")\n"
"set comment of newTrack to "%3""
"\n"
"end tell";
fileName = fileName.replace(""", "\"");
args << "-l" << "AppleScript";
scriptLauncherBinary = "/usr/bin/osascript";
p.start(scriptLauncherBinary, args);
p.write(scriptText.arg(plName).arg(fileName).arg(getComment()).toUtf8());
p.closeWriteChannel();@

gaojinhsu

I mean the way how chrome opens the network setting dialog, not how it sets proxies...have a look "here":http://dougscripts.com/itunes/2013/10/os-x-10-9-applescripts-and-accessibility-control/ so if chrome uses applescript to open the proxies settings dialog, it should be in the list of "Allow the apps below to control your computer". I am very curious how chrome could skip it.
[quote author="janfaroe" date="1390211636"]
As for Chrome and other browsers: I strongly believe they take their default settings from the system ones, ie. those presented in the System Preferences. [/quote]

janfaroe

Yes, but why would you be interested in opening Chromes network settings, if the system settings can override it?

Edit: Ah, because of the "allow the apps below..." setting. Sorry, not an Applescript expert.

gaojinhsu

because I think it is a good user experience, I wanna add a button like that in my app.

gaojinhsu

Thanks anyway, that's very kind of you for giving me the advice.

[quote author="janfaroe" date="1390294144"]Yes, but why would you be interested in opening Chromes network settings, if the system settings can override it?

Edit: Ah, because of the "allow the apps below..." setting. Sorry, not an Applescript expert.[/quote]

janfaroe

You're welcome :-)

Well, it depends on the scope of your application. If it's necessary, then it's necessary.

zyfihx

About running such a script as a QProcess : I am trying to make it work in a sandbox environment (App Store), but I'm not sure wether the main app's entitlements apply to the osascript QProcess launched ? I'm getting access violation errors but I'm not sure if it's because my app is not signed correctly with entitlements, or if maybe it is because I must figure out a way to get the entitlements to apply also to the subprocess...