Drop the “MediaQueryListListener” feature

[sideshowbarker]

This change drops the “MediaQueryListListener” feature. It’s not the name of an actual API but instead apparently was just a kind of shorthand for something that’s no longer part of any spec anyway. See https://wiki.developer.mozilla.org/docs/Web/API/MediaQueryListListener

[foolip]

@ddbeck can you redirect https://wiki.developer.mozilla.org/en-US/docs/Web/API/MediaQueryListListener before we merge this?

[sideshowbarker]

@ddbeck can you redirect https://wiki.developer.mozilla.org/en-US/docs/Web/API/MediaQueryListListener before we merge this?

I can redirect it — so can you actually, I think: In the top editing bar of the MDN editing UI, you should see that the furthest-right button is a curved-arrow icon with Create a Redirect tooltip text. When you push push that it pops up a dialog that lets you choose the article name to redirect to.

[foolip]

Aha, I thought special powers were needed. I've redirected it now, but https://developer.mozilla.org/docs/Web/API/MediaQueryListListener hasn't updated yet.

[foolip]

Going through some of the docs for this, I think the interesting thing to communicate to web developers is whether MediaQueryList supports addListener, addEventListener, or both. How the callback function for addListener was specified is not in itself observable to web developers.

What gives me doubt is what to do with these notes still left in MDN:
https://wiki.developer.mozilla.org/en-US/docs/Web/API/MediaQueryList/addListener#Syntax
https://wiki.developer.mozilla.org/en-US/docs/Web/API/MediaQueryList/removeListener#Syntax

Is there anything about those that should be preserved?

[sideshowbarker]

Going through some of the docs for this, I think the interesting thing to communicate to web developers is whether MediaQueryList supports addListener, addEventListener, or both.

Yeah, agreed

How the callback function for addListener was specified is not in itself observable to web developers.

What gives me doubt is what to do with these notes still left in MDN:
https://wiki.developer.mozilla.org/en-US/docs/Web/API/MediaQueryList/addListener#Syntax
https://wiki.developer.mozilla.org/en-US/docs/Web/API/MediaQueryList/removeListener#Syntax

Is there anything about those that should be preserved?

No, I think — nothing there that needs to be preserved (given as you noted that how the callback function is specified isn’t observable).

[ddbeck]

So what needs to happen here? Remove the mentions of MediaQueryListListener on MDN and merge this?

[sideshowbarker]

So what needs to happen here? Remove the mentions of MediaQueryListListener on MDN and merge this?

I think so — but I guess we need confirmation from @foolip

[queengooborg]

Foolip's been away from BCD for a while -- reading through this thread, I'd say that this is ready to go. If those notes don't need to be preserved, then we can push go and remove this!

[sideshowbarker]

I'd say that this is ready to go. If those notes don't need to be preserved, then we can push go and remove this!

OK, thanks — then I’m happy if you (or anybody other than me, since I’m the author for the patch) can go ahead and push the button to merge this

[sideshowbarker]

Thanks for the merge!

[ddbeck]

So it's not exactly explicit from the process we discussed previously, but I'd like to make sure that we clean up any content messes that follow from our feature removals before merging. By redirecting the MediaQueryListListener page back to MediaQueryList, we created oddities on the pages for MediaQueryList.addListener() and .removeListener(). I'll fix those pages now, but, in the future, I'd like open questions about content problems to be answered (with content changes or issues against mdn/sprints) before merging.