publish: support pictures

[snarfed]

needs new API usage for both FB and twitter, but should be pretty straightforward.

cc @kartikprabhu

[snarfed]

one big question here is whether there's mf2 markup to identify pictures that are the primary content of a post, as opposed to just decoration. if not, I can start with just the first picture(s) inside the e-content.

[kartikprabhu]

@snarfed how about using the u-photo of the h-entry and as a fallback use the first image. FB uses the <meta name="thumbnail" content="thumbnail-url"> which I have kept in my articles because the square thumbnails don't fit anywhere in the actual post. ref: http://kartikprabhu.com/article/indieweb-love-blog

[snarfed]

sgtm!

[dshanske]

I'm marking up h-entries as h-as-image for posts which are primarily an image post. I stole it from others doing it, along with h-as-page, h-as-article, h-as-bookmark

http://microformats.org/wiki/activitystreams

It is an experimental markup, I believe. There is also a proposal for a u-photo in an h-entry noted as an option for marking up the primary image.

[snarfed]

for anyone interested in tackling this, the changes would (probably) be isolated to just twitter._create() and facebook._create() in activitystreams-unofficial. it'd be fine to do just one or the other, too.

cc @notenoughneon

[snarfed]

lots of good discussion on irc today on how to determine whether a post is a "photo" post, and if so, which photo(s). they've started wikifying it on Photos#Discussion.

[kylewm]

I'm pretty well convinced that a note with a photo should be syndicated like a photo, full stop.

In the discussion today, I could only come up with one counter-example https://kylewm.com/note/2014/05/05/1 and even that is kind of a toss up.

[snarfed]

done for twitter! by @notenoughneon in snarfed/granary#16. it just uses the first u-photo.

[snarfed]

moving back to now since i'd like to do this for facebook too.

[notenoughneon]

I've started working on facebook support.

[snarfed]

awesome, glad to hear it!

[kylewm]

@notenoughneon exciting!

there's a little bit of code in redwind for posting photos to facebook, feel free to reference or ignore :)

https://github.com/kylewm/redwind/blob/fb012f5741cdacacba2bb14b6bf7adc8794c2ce8/redwind/plugins/facebook.py#L174

[snarfed]

thanks again, @notenoughneon! done in snarfed/granary#20.