Flarum 2.0 renders in Mithril v3

LuoTR

Just playing around. User interactions are unsupported. The aim is just to make it render.

Here's the code: YUCLing/flarum-frameworktree/attempt/mithril-v3
It's a mess. Since I just want to make it work.

It's based on Flarum 2.0. And used tons of hacks, mainly located in patchMithril.js. It seems that it's possible to keep object component in Mithril v3, but hacks are required. Also I'm not sure about the performance impact.

To build it, you need to make sure submodules are updated, and go to js-packages/mithril, run npm run build. Then run yarn and yarn build in framework/core/js.

If you want to make Flarum runs on Mithril v3 properly, you will have to rewrite tons of components. ~~The lifecycle is one of the major issue even you can make object components work.~~ The lifecycle is currently solved right now I think, except for onbeforeremove, this one can be tricky.

LuoTR

Just did more work, now it works much better. Didn't make too many changes to Flarum components.

IMO, the results are pretty good. Not only the homepage, but many pages are working well and can be simply interacted with. Both forum and admin are working.

But many things should be changed to better adapt to Mithril's new behaviors.

luceos

Just to be clear about expectations. Although we appreciate the effort, we will not consider an upgrade of mithril for V2 for now.

LuoTR

luceos

It's just an experiment, checking if Flarum's current component system suitable for Mithril v3.

IMO, the function component is not quite extensible, so I think Flarum will be stick with the current component style. This is why I would like to try it out.

I'm pretty sure this should be scheduled for Flarum 3.0, with tons of things to remove (route resolvers) and change (lifecycle like onbeforeremove).