Re: Passing Arrays Between Widget and Plugin

• Subject: Re: Passing Arrays Between Widget and Plugin
• From: Mark Rakes <email@hidden>
• Date: Fri, 13 May 2005 21:28:57 -0700
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Thanks, Tom. I had a feeling it was my Obj-C.

-mark

On May 13, 2005, at 7:03 PM, Tom Bunch wrote:

Mark,

arrayWithObjects: returns an autoreleased array, so after your autorelease pool pops (probably at the end of the event loop) you're left with a dangling pointer. Just retain it.

-Tom

On Thursday, May 12, 2005, at 02:50 PM, Mark Rakes wrote:

Ok. let's start over. I've made a modified version of the "Fortune"
example widget that exhibits the same crash:
    http://homepage.mac.com/mrakes/.Public/ModFortune.zip
and compare to:
    <path to your developer stuff>/Developer/Examples/Dashboard/...

Instead of returning a string at a time to javascript, I attempted
to return an NSArray, and then display one of the strings in the array.
My getFortuneArray method is called (the NSLog() comes out), but then
the widget crashes.

any help is greatly appreciated...

-mark

On May 10, 2005, at 10:25 PM, Tom Bunch wrote:

Yes. I suppose your NSArray is the result of a objC call? Supposing you've figured out how to call it already from javascript (see these methods)

+ (NSString *)webScriptNameForSelector:(SEL)aSel;
+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSel;

you can do something like this:

var things = MyWidgetPlugin.someThings();
if (things) {
var thingCount = things.length;
for (var thingIndex = 0; thingIndex < thingCount; ++ thingIndex) {
var aThing = things[ thingIndex];
}

Does that help? Your plugin class just has an instance method like:

- (NSArray *)someThings;

-Tom

On May 10, 2005, at 1:19 PM, Stefan Hanshans wrote:

Is it possible to obtain an array (NSArray) from a widget plugin in JavaScript?

TIA

Stefan

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