Carbon/src/js/chat-input.js

const {q} = require("./basic.js")
const {store} = require("./store/store.js")
const lsm = require("./lsm.js")
const {chat} = require("./chat.js")

const input = q("#c-chat-textarea")

store.activeRoom.subscribe("changeSelf", () => {
	if (store.activeRoom.exists()) {
		input.focus()
	}
})

input.addEventListener("keydown", event => {
	if (event.key === "Enter" && !event.shiftKey && !event.ctrlKey) {
		event.preventDefault()
		const body = input.value
		send(input.value)
		input.value = ""
		fixHeight()
	}
})

input.addEventListener("input", () => {
	fixHeight()
})

function fixHeight() {
	input.style.height = "0px"
	// console.log(input.clientHeight, input.scrollHeight)
	input.style.height = (input.scrollHeight + 1) + "px"
}

function send(body) {
	if (!store.activeRoom.exists()) return
	if (!body.trim().length) return
	return store.activeRoom.value().timeline.send(body)
}