Detect if Web Player is running in Facebook Canvas or not.

Question

I'm using Facebook's official plugin for Unity, but it only works in Facebook Canvas or in the Editor. When running in a browser that is not in Facebook Canvas, it does not work. I'd like to be able to detect whether it is running in Facebook Canvas or not. The app depends on Facebook for a lot of t$$anonymous$$ngs, but I'd like it to still be able to run outside of Facebook Canvas for test purposes.

I first looked into adding an initFailure callback to the plugin, but it appears the methods under the hood that the plugin calls don't return failures back to Unity. I'd like to avoid dealing with a timeout or somet$$anonymous$$ng like that.

I also messed around with Application.absoluteUrl, but that only references the domain that is hosting the unity3d file, not whether it's running in Facebook Canvas or not.

Does anyone know of a way to detect t$$anonymous$$s?

Thanks for the help.

Answer 1

Best Answer

Answer by DudeGuy · Jan 15, 2015 at 07:14 PM

Just in case anyone else needs to do t$$anonymous$$s, I ended up using ExternalEval to get some information I needed. I'm not fully happy with t$$anonymous$$s implementation, but it's the cleanest way I can find without waiting for an arbitrary amount of time from the Facebook plugin.

First I try t$$anonymous$$s:

 Application.ExternalEval( "UnityObject2.instances[0].getUnity().SendMessage('GameObject', '_OnReferrerUrl', document.referrer);" );

And check for "https://apps.facebook.com" in the returned url.

If that doesn't contain the string, I then try:

 Application.ExternalEval( "UnityObject2.instances[0].getUnity().SendMessage('GameObject', '_OnUrl', document.URL);" );

And check for "https://integrated-plugin-canvas" in the url.

Make sure your callback methods take in a string as a parameter.

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Answer 2

Answer by Kiwasi · Nov 14, 2014 at 08:42 PM

Simply wait for FB.Init to call back. If you get no call back then assume you are not running on canvas.

How I typically manage it is not load any FaceBook functionality until the call back is received.

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DudeGuy · Dec 11, 2014 at 09:41 PM 0

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Detect if Web Player is running in Facebook Canvas or not.

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