Initial prototype of web & addon cooperating

[lmorchard]

Okay, hopefully this makes sense and I'm not just delusional at 2am. I'm not totally sure this is worth merging as a PR. But, this could use some eyes as a first demo. Here's what it does so far:

• Click here and pretend this stub content could be the Idea Town site.
• At first, there should only be a link to an addon XPI file. Clicking on it might not work to install, since it's not signed. So you might need to download it and install it manually.
• Once installed, reload the stub content site. You could also run gulp, which will start up a local dev server. The beaker icon in the toolbar opens up a tab to that server.
• After installing the addon and reloading the stub content, you should see a button revealed by a message from addon to web.
• If you click the button, you should see a notification bar come up in browser chrome, triggered by a message from web to addon.

So, I think the cool thing is that we don't need an iframe wrapper. The addon can listen for messages from a whitelist of web origins and do special things for normal pages from those origins.

[jaredhirsch]

@lmorchard this is awesome! I'll take a look post-meetings. @meandavejustice feel free to pile on, let's make this a party

[meandavejustice]

@lmorchard I'm going to go ahead and merge this as it takes care of some of the boilerplate and looks like a good start. Thanks!