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Re: [mediacapture-main] Clarify whether groupId is origin-unique

From: Anne van Kesteren via GitHub <sysbot+gh@w3.org>
Date: Thu, 20 Aug 2015 10:31:37 +0000
To: public-media-capture-logs@w3.org
Message-ID: <issue_comment.created-132967834-1440066697-sysbot+gh@w3.org>
@alvestrand the lifetime is defined by HTML. Global objects are 
typically 1:1 with documents. You can assume as much for the purposes 
of your API. Here's defined what happens when a document is unloaded: 
https://html.spec.whatwg.org/multipage/browsers.html#unload-a-document
 Which is triggered by navigation. Navigation also takes care of 
creating new global objects and such.

What you typically do in specification land if you want to rely on the
 lifetime of some other object is saying that the other object has an 
associated _X_. Now you can rely on that _X_ being there as long as 
the other object is around. And fiddle with it. Then if you need to do
 cleanup steps yourself for your own objects, you write those down, 
and attach them to 
https://html.spec.whatwg.org/multipage/browsers.html#unloading-document-cleanup-steps.

I'm hoping that in due course objects being associated with some other
 object can become a bit more formal in terms of "internal slots" and 
some other stuff, but we aren't so organized just yet.

-- 
GitHub Notif of comment by annevk
See 
https://github.com/w3c/mediacapture-main/issues/222#issuecomment-132967834
Received on Thursday, 20 August 2015 10:31:39 UTC

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