Implement channel join/part function

[simnalamburt]

Implement multiple channel speaking features

TODOs

• At first, we fix the channel that can be talked to exist only #a, #b, #c
• Next, implement channel creation, channel joining, channel leaving function
• Force channel names to start with #
• Error when trying to enter a channel that already exists
• Handle the "server buffer" specially

Note: typing must be separate for each channel. The contents of the #a channel disappear when you change to the #b channel, and when you return to the #b channel from the #b channel, the previous contents must be displayed again.

https://github.com/openirc/openirc/blob/master/client/src/app.elm#L26

---

I would start by fixing the model part code...

type alias Model =
  {
    logs : List Line,
    nick : String,
    typing : String
  }

like this:

type alias Channel =
  {
    logs : List Line,
    typing : String
  }

type alias Model =
  {
    nick : String,
    channels : List Channel
  }

CC @heejongahn

[heejongahn]

Basic channel concept is implemented (see #16)

If our first goal is to resemble IRCCloud, I can think of something like this:

• Server/Channel information is shown at the sidebar (scrollable)
• Each server has a list of joined channel below itself.
• Also, each server has a text input which can be used to (join/create) new channel.
• Each list item (that is, an item representing a channel) has channel name and small x button to close the channel.

So the sidebar would seem like:

Server A
Channel 1 [x]
Channel 2 [x]
Channel 3 [x]
___________ (to join/create channel)

I think we can ignore server for now and assume that there's only one server available. Does this sound ok?

[simnalamburt]

Good. #16 has been merged.