Re: How to quit an applet?

Subject: Re: How to quit an applet?

From: Peter Clarke <email@hidden>

Date: Thu, 9 Jun 2005 16:53:29 +0100

Delivered-to: email@hidden

On 8 Jun 2005, at 02:50, Brian Johnson wrote:

On Tue, 7 Jun 2005, Neil Lee wrote:

I created a very basic applescript application that only has to run a shell command and then quit. Here's the code:

on run
   do shell script "/Volumes/lester/Development/Webkit/WebKitTools/ Scripts/run-safari &"
   quit
end run

The problem is that after Safari launches, the script applet doesn't quit. It hangs and I have to force quit it.

I think this is it... Look at this line from one of my scripts

   set x to "/scripts/stopmysql > /dev/null 2>&1&"

The stuff at the end insures that the "do shell script" that comes next returns immediately, so my script can quit (or, in this case, poll the mysql process to see if it's quit yet).

This is explained in "TN2065-do shell script.pdf" on the apple dev web site (sorry, I downloaded my copy ages ago).

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I think that the problem is that the Script is set to run in the background (the & at the end it it tells it to do this)

- So I am presuming that the script takes some time to run - ie more then just a few seconds.

So Your Apple Script has to wait for it to finish running, before it too can finish.

However it is not necessary for the AppleScript to wait - since the script is running in the background not the foreground.

So in AppleScript you could say:

"ignoring application responses" - and then AppleScript is allowed "to finish"

- even though the script it is running (in the background) has not itself yet finished.

EG:

-----------------------------------------------------------

ignoring application responses

on run

do shell script "/Volumes/lester/Development/Webkit/WebKitTools/ Scripts/run-safari &"

end run

end ignoring

-----------------------------------------------------------

-- Peter

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References:

>How to quit an applet? (From: Neil Lee <email@hidden>)

>Re: How to quit an applet? (From: Brian Johnson <email@hidden>)