Re: How to - multiple instances of similar systems / objects

You can assign JS calls directly to buttons, no need to use join numbers
unless showing real feedback.

So you could have one system defined, and then change what device it is
talking to by modifying its IP address/port at runtime using
CF.setSystemProperties.

The button that you use to change what device you want to control could
have JS attached to it to perform the system properties changes, then
each button could just have something like:

myDevice.command("play");

With JavaScript it's really capable of doing pretty much anything you
like - just up to you to program it in a way that suits your requirements.

You could even use the same join numbers for each system, and just make
sure to set the joins to a default state when changing systems, and then
request the new data from the system each time you change.

Jarrod

On 29/01/12 10:22 AM, Heath Volmer wrote:
> Going to ramble a tad here:
>
> I have a JS file designed to talk to a media server. I could have
> multiple media servers, so I might need multiple systems and multiple
> JS objects to handle them. My JS is building the multiple instances
> with no problem, but now that I'm to the point of connecting the
> buttons on the server's gui page to the JS objects that talk to the
> system, I realize that I have no idea how to access a given object
> from a button and call a function on it.
>
> One method (which I don't like) is to watch joins and route them to
> the currently-selected system.
>
> Another way is to route different ranges of joins to different systems
> (I like this even less, being a big proponent of reusing things.)
>
> Either way, I'm assuming that I have to do this routing to the
> appropriate object outside of my objects.
>
> My main questions:
> Please tell me there is a better way that gets me out of
> join-number-ville. I'd like to say command("Play") on a button press
> and have that button talk to the server it's supposed to. Do I need
> to have a central catcher of commands that says "He pressed play, and
> he's on media server 4. Send the command to that one"? That might
> not be too messy.
>
> Is there a way to attach a JS object to a subpage or page? It's
> buttons would refer to a certain instance. (Venturing into Mac-Xcode
> land here again folks) Like a page built in Interface Builder has a
> controller object attached to it.
>
> Thanks
>

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