Running a sketch online

ela.oster..

in Integration and Hardware • 1 year ago

Hi everyone, first time poster and a processing noob. I have created a sketch which uses the twitter4j library (v 2.5.5) and whilst it works fine on my desktop, when I export the applet and put it online it simply does not work, not even loading the processing 'loading' gif. I've tried just about everything I can think of and really hope someone can help! The applet is in a zip file here: http://artpublic.org/ela/applet.zip

Any help much appreciated,

thanks,

Ela.

Replies(3)

PhiLho

Re: Running a sketch online

1 year ago

" I've tried just about everything I can think of"
Well, there are things that you migth not think of...

(like search the Net

)
For example, have you tried to sign your jar?
By default, an applet can access only its own site, so accessing Twitter isn't possible, unless you sign the jar and the user accepts such exception...

ela.oster..

Re: Re: Running a sketch online

1 year ago

heh :) I have indeed trying searching the net, though clearly not well enough. When you create an applet from within processing I assumed that as long as the required code and .jar files were in the same directory (along with the required libraries output) that the index.html would just play the pde. So, questions (and thanks so much for responding):

How do I sign the jar via processing? (or must I sign using JAVA explicitly)

How is it possible to access twitter? (I am using the API directly with required access tokens etc)

In your opinion do you think that if these two issues are solved the PDE should play correctly in a browser?

Many thanks again for help on this.

Ela

PhiLho

Re: Running a sketch online

1 year ago

See the Sign an Applet article in the Processing wiki.
Applets are not signed by default because when they are, they show a "scary" dialog asking the user if they really want to run the applet. And indeed, a signed applet has lot of rights, like being able to wipe out the hard disk of the user!
So it is up to the applet creator to find out when to sign a jar, and to do it.

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