I got this already, thanks to the list.
I'm not sure this subject will come up in my books any time soon because it's platform-specific and I don't know how many folks are interested in using AppleScript with Rev in any case.
Dan
On Sep 28, 2004, at 4:27 PM, Kathy Jaqua wrote:
An example of using appleScript from Run Rev to open an Application and check the result (in case it was not installed is the Mac OS 9, OS X)
Ken this is a great example of RunRev's ability to use appleScript. This line by line explanation was of great help to me on many levels. If you don't mind I am going to forward this to Dan Shafer for future publication inclusion considerations. It will help many others like myself who are new to appleScript calls using the Transcript Language. I know it took your valuable time to carefully explain each step. It's also a good example of offsets and function calls. (It's been years sense hyperCard and a lot of us are a little rusty.) We need more of these examples and I hope runRev is listening :)
Again many Thanks. Kathy Graves Jaqua A Wildest Dream Software [EMAIL PROTECTED]
The scripts to which I have been referring are as follows:
A. From Andrew Garzia (using appleScript only)
B. From Ken Ray (calling appleScript from RunRev or MetaCard) --------------------------------
A. Opens the Application "iCal" (Traditional appleScript)
Kathy try putting this on a field called "myscript":
tell application "iCal" activate end tell
put a button with the following script
on mouseUp do field "myscript" as applescript end mouseUp ---------------------------------------
B. Opens Application "iCal" and checks to see if it is open (Using Transcript to call Applescript)
OK, Kathy, no problem. You already know from Andre's script that you can use Rev to run an AppleScript, just as if you'd done it in Apple's Script Editor application. The AppleScript is executed by Rev using the syntax:
do <scriptText> as AppleScript
where <scriptText> is the script you want to execute. As you are currently doing, you can provide the script by using the contents of a field. But you can also provide using a variable. So your "Open iCal" script (which is currently sitting in a field) could also be executed like this:
on mouseUp put "tell application" && quote & "iCal" & quote & return & \ "activate" & return & "end tell" into tScript do tScript as AppleScript end mouseUp
This would mean you could remove that extra field if you wanted to because it's all in the script.
The nice thing about Rev is that you can do certain things to shorten the script and/or make it more readable. For example, "return" can be replaced with "cr" (which does the same thing), and I personally don't like typing "quote & <quotedString> & quote" in a script (especially if I'm doing it a lot), so I created a function called "q" that puts quotes around things:
function q pWhat return quote & pWhat & quote end q
(BTW: I forgot to include this function with my last email - sorry...)
Additionally, you can use the backslash character to break script lines for readability. I do this with things like AppleScript so that one visible line in Transcript corresponds to one visible line in AppleScript. You don't have to do this, but I happen to like it. So your "Open iCal" script can now look like this:
on mouseUp put "tell application" && q("iCal") & cr & \ "activate" & cr & \ "end tell" into tScript do tScript as AppleScript end mouseUp
So the code I'd sent you:
function isAppRunning pAppname replace ".app" with "" in pAppName put "tell application " & q("Finder") & cr & \ "return the processes" & \ cr & "end tell" into tAS do tAS as AppleScript put the result into tProcs return (offset("process" && q(pAppName),tProcs) <> 0) end isAppRunning
Would be called like this:
on mouseUp if isAppRunning("iCal") then answer "iCal's running! else answer "iCal's not running." end if end mouseUp
And the code does this (I'm adding line numbers for clarity):
1: function isAppRunning pAppname 2: replace ".app" with "" in pAppName 3: put "tell application " & q("Finder") & cr & \ "return the processes" & \ cr & "end tell" into tAS 4: do tAS as AppleScript 5: put the result into tProcs 6: return (offset("process" && q(pAppName),tProcs) <> 0) 7: end isAppRunning
In line 1, we pass in the name of the application we want to check as a parameter to the isAppRunning function. The name can either be the short name of the application (like "iCal") or the name of the application with its extension ("iCal.app").
In line 2, since the AppleScript that runs returns a list of running applications *without* their extensions, I want to eliminate the ".app" if for some reason it was passed to the function, so I call the "replace" command to do that job.
Lines 3 to 4 you are more familiar with, in that they run an AppleScript that returns the list of running processes (applications).
Whenever AppleScript returns a value, Rev can retrieve that value by checking "the result" right after the AppleScript is called. Line 5 does this, and puts the list of running applications into the local variable 'tProcs'.
In line 6 we check to see if the application name that was passed into the function exists in the list of currently running applications that AppleScript returned. This line is a "combination" line of code; that is, it is the collapsed form of:
if offset("process" && q(pAppName),tProcs) <> 0 then return true else return false end if
Since AppleScript returns the list in its own format, the variable tProcs looks something like this:
{application process "loginwindow" of application "Finder", application process "Dock" of application "Finder", application processs "iCal" of application "Finder"}
So to determine if "iCal" is in this list, I'm checking to see if the phrase:
process "iCal"
exists in the list of processes using the offset() function. If it does, it returns a value that corrresponds to the location in the string where I can find it; if not, it returns 0. For the purposes of my code, all I care about is whether it returns 0 or not; 0 is "false", anything else is "true".
Then we end the function in line 7 and we're done! So if you include the isAppRunning() function along with the q() function in your script, and call it like this:
if isAppRunning("iCal") then ...
you should be in good shape. :-)
Hope this helps,
Ken Ray Sons of Thunder Software Web site: http://www.sonsothunder.com/ Email: kray at sonsothunder.com
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