Add support for Custom Elements

[jeluard]

Custom Elements is a new w3c specification that introduces a new API to create DOM element: document.createElement(localName, typeExtension). This API reflects a new html syntax <button is="my-button"></button> where button would be the localName and my-button the typeExtension.

The equivalent hiccup syntax [:button {:is "my-button"}] should generate the proper DOM call when used with dommy to support this spec as setting is as an attribute (current behavior) has no effect.

[jeluard]

Any comment? Is that something you would consider addressing? Thanks!

[cpetzold]

Yeah, I think this is definitely a reasonable thing to add! If you're interested in taking a stab at it, it should just be a small change to base-element in template.cljs and compile-compound in macros.clj:

https://github.com/Prismatic/dommy/blob/master/src/dommy/template.cljs#L32-L34
https://github.com/Prismatic/dommy/blob/master/src/dommy/macros.clj#L126

[jeluard]

Great, I'll take a look then.

[cpetzold]

@jeluard thanks for contributing -- sorry to say we're deprecating templating. Please see #85

Let us know if you'd like to see templating maintained as a separate project!

[jeluard]

Actually yes I would be interested in creating a separate project that would be based on the templating code and add some more features on top of it.
Would that be fine from your side?

[cpetzold]

Definitely! Let me know if you need any help getting started.

[jeluard]

Great! I'll let you know how it goes.

[jeluard]

I pushed a first release that just bundle dommy templating code. Let me know if something looks incorrect.

[loganlinn]

@jeluard That's giving me a 404. Might it be a private repo?

[jeluard]

Oups it should be public now.

[jeluard]

I am curious to know why there was 2 versions of node, one as a macro and one as a function. Is there a specific reason you would not want to use the macro one?

[cpetzold]

I think the function version was dead code that wasn't ever removed after the introduction of ->node-like. It's probably not necessary anymore.