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Async ContentAssist [message #923081]

Tue, 25 September 2012 15:33

Holger Schill

Messages: 75
Registered: July 2009

Member

Hi all,

I am Holger from Xtext team and I am currently working on a research-project to bring DSL-editors into the web.

What I already achived is a standalone Webpage without Orion-Server compareable to the embedded view example.

1. I plugged Google prettify in to calculate the styles for highlighting.
2. I wrote a small servlet that runs inside of an jetty inside of eclipse with equinox to let eclipse calculate the proposals for my orion editor. I mad use of jquery and JSON to achive that. This works in sync mode but freezes the browser for a while.

And here comes the question:

Is there already a way to make the calculation of the proposals async? Out of the code I was not able to find something like that.

Thanks in advance,

Holger

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Re: Async ContentAssist [message #923117 is a reply to message #923081]

Tue, 25 September 2012 16:02

Mark Macdonald

Messages: 35
Registered: July 2009

Member

You can get asynchronous proposal computation by making your computeProposals method return a jQuery.Deferred object* instead of returning the proposals array directly.

Once the proposals have been fetched from the server, the Deferred should resolve (passing the proposals array), and the content assist engine will display them.

* Any object that fulfills the promise.then contract will also work; strictly speaking, jQuery is not required.

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