Re: load(path) does work in javascript, but not if called from a macro

Posted by lechristophe on Nov 01, 2014; 2:06pm
URL: http://imagej.273.s1.nabble.com/load-path-does-work-in-javascript-but-not-if-called-from-a-macro-tp5010245p5010278.html

I'll answer my own question, as my post was deemed too esoteric for the IJ
mailing list, and until a Fiji guy has a look at the load() issue (if not,
I can add a warning to this part of the wiki:
http://fiji.sc/JavaScript_Scripting#Using_other_.js_files_as_libraries) .

After banging my head trying all sort of convoluted work around, I did what
everyones struggling with script/macro programming should do: use the Macro
Recorder. It showed me that replacing runMacro(path_to_script_1) by a
simple run("script 1") solved the problem, as my scripts (and thus
script#1) live in the plugin folder and have an underscore un their names.

Christophe

2014-10-31 11:14 GMT+01:00 Christophe Leterrier <
[hidden email]>:

> 2014-10-30 16:48 GMT+01:00 Christophe Leterrier <
> [hidden email]>:
>
>> Hi,
>>
>> I have a script (javascript) that calls functions in another script using
>> load(path). It works fine in Fiji thanks to Johannes' work (see
>> http://imagej.1557.x6.nabble.com/Javascript-in-Fiji-does-not-work-anymore-td5008314.html
>> ).
>>
>> I have now made a toolset to launch these various scripts using the
>> runMacro(path) command. So what happens is that the Action Tool calls the
>> script#1 using runMacro(path1), and the script#1 calls functions in
>> script#2 using load(path2). However when I do this, I get an error (that
>> does not happen when launching script#1 directly:
>>
>> ReferenceError: "load" is not defined (<Unknown source>#35) in <Unknown
>> source> at line number 35
>>
>> Anyone knows what happens here, and knows how to work around/correct this?
>>
>> Thanks,
>>
>> Christophe
>>
>
> To complete my post, I tried adding a custom load function (provided by
> Johannes here:
> http://imagej.1557.x6.nabble.com/Newbie-JavaScript-question-td4626432.html)
> to my script#2:
>
>         function customload(path) {
>                 importClass(Packages.org.mozilla.javascript.Context);
>                 importClass(Packages.java.io.FileReader);
>                 var cx = Context.getCurrentContext();
>                 cx.evaluateReader(this, new FileReader(path), path, 1,
> null);
>         }
>
> and now the error is:
> TypeError: Cannot call method "evaluateReader" of null (<Unknown
> source>#45) in <Unknown source> at line number 45
>
> Which would point at a problem with the context retrieval when the script
> is not called directly, but from somewhere else (either a script or a
> macro). I tried to understand what the Context class is but this is way
> over my knowledge...
>
> Would someone indicate a fix that would allow me to run this? It is
> important for me because it would allow me to group my scripts into a
> Toolset before giving them to other users.
>
> Thanks for the help,
>
> Christophe
>

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