forked from cadence/Carbon
Now technically a chat app
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GPG key ID:
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19 changed files with 434 additions and 13 deletions
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@ -2,11 +2,12 @@
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<html>
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<head>
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<meta charset="utf-8">
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<link rel="stylesheet" type="text/css" href="static/main.css?static=b0aba41b0b">
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<link rel="stylesheet" type="text/css" href="static/main.css?static=0c50689ce5">
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<script type="module" src="static/groups.js?static=2cc7f0daf8"></script>
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<script type="module" src="static/chat-input.js?static=a90499fdac"></script>
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<script type="module" src="static/room-picker.js?static=d92adfaaca"></script>
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<script type="module" src="static/sync/sync.js?static=232a64285c"></script>
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<script type="module" src="static/chat-input.js?static=e8b21037fa"></script>
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<script type="module" src="static/room-picker.js?static=1d38378110"></script>
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<script type="module" src="static/sync/sync.js?static=9e31c8a727"></script>
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<script type="module" src="static/chat.js?static=d4a415f1ae"></script>
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<title>Carbon</title>
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</head>
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<body>
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@ -20,7 +21,7 @@
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<div class="c-rooms" id="c-rooms"></div>
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<div class="c-chat">
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<div class="c-chat__messages">
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<div class="c-chat__inner">
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<div class="c-chat__inner" id="c-chat">
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<div class="c-message-notice">
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<div class="c-message-notice__inner">You've reached the start of the conversation.</div>
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</div>
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95
build/static/Timeline.js
Normal file
95
build/static/Timeline.js
Normal file
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@ -0,0 +1,95 @@
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import {ElemJS} from "./basic.js"
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import {Subscribable} from "./store/Subscribable.js"
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class Event extends ElemJS {
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constructor(data) {
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super("div")
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this.class("c-message")
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this.data = null
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this.update(data)
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}
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update(data) {
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this.data = data
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this.render()
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}
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render() {
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this.child(this.data.content.body)
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}
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}
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class Timeline extends Subscribable {
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constructor() {
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super()
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Object.assign(this.events, {
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addItem: [],
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removeItem: []
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})
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Object.assign(this.eventDeps, {
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addItem: [],
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removeItem: []
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})
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this.list = []
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this.map = new Map()
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this.elementsMap = new Map()
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this.elementsList = []
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}
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_binarySearch(event, min = 0, max = -1) {
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if (this.list.length === 0) return {success: false, i: 0}
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if (max === -1) max = this.list.length - 1
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let mid = Math.floor((max + min) / 2)
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// success condition
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if (this.list[mid] && this.list[mid].event_id === event.event_id) return {success: true, i: mid}
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// failed condition
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if (min >= max) {
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while (mid !== -1 && (!this.list[mid] || this.list[mid].origin_server_ts > event.origin_server_ts)) mid--
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return {
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success: false,
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i: mid + 1
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}
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}
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// recurse (below)
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if (this.list[mid].origin_server_ts > event.origin_server_ts) return this._binarySearch(event, min, mid-1)
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// recurse (above)
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else return this._binarySearch(event, mid+1, max)
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}
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updateEvents(events) {
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for (const event of events) {
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if (this.map.has(event.event_id)) {
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this.map.set(event.event_id, event)
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this.elementsMap.get(event.event_id).update(this.map.get(event.event_id))
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} else {
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const index = this._binarySearch(event).i
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this.list.splice(index, 0, event)
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this.map.set(event.event_id, event)
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const e = new Event(event)
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this.elementsList.splice(index, 0, e)
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this.elementsMap.set(event.event_id, e)
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this.broadcast("addItem", {index, element: e})
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}
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}
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}
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getGroupedEvents() {
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let currentSender = Symbol("N/A")
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let groups = []
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let currentGroup = []
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for (const event of this.list) {
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if (event.sender === currentSender) {
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currentGroup.push(event)
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} else {
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if (currentGroup.length) groups.push(currentGroup)
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currentGroup = [event]
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currentSender = event.sender
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}
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}
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if (currentGroup.length) groups.push(currentGroup)
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return groups
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}
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}
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export {Timeline}
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@ -119,6 +119,18 @@ class ElemJS {
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return this;
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}
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childAt(index, toAdd) {
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if (typeof toAdd === "object" && toAdd !== null) {
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toAdd.parent = this;
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this.children.splice(index, 0, toAdd);
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if (index >= this.element.childNodes.length) {
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this.element.appendChild(toAdd.element)
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} else {
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this.element.childNodes[index].insertAdjacentElement("beforebegin", toAdd.element)
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}
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}
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}
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/**
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* Remove all children from the element.
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*/
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@ -1,17 +1,46 @@
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import {q} from "./basic.js"
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import {store} from "./store/store.js"
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import * as lsm from "./lsm.js"
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let sentIndex = 0
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const chat = q("#c-chat-textarea")
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chat.addEventListener("keydown", event => {
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if (event.key === "Enter" && !event.shiftKey && !event.ctrlKey) {
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chat.value = ""
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event.preventDefault()
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const body = chat.value
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send(chat.value)
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chat.value = ""
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fixHeight()
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}
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})
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chat.addEventListener("input", () => {
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fixHeight()
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})
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function fixHeight() {
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chat.style.height = "0px"
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console.log(chat.clientHeight, chat.scrollHeight)
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chat.style.height = (chat.scrollHeight + 1) + "px"
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})
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}
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function getTxnId() {
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return Date.now() + (sentIndex++)
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}
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function send(body) {
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if (!store.activeRoom.exists()) return
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const id = store.activeRoom.value().id
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return fetch(`${lsm.get("domain")}/_matrix/client/r0/rooms/${id}/send/m.room.message/${getTxnId()}?access_token=${lsm.get("access_token")}`, {
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method: "PUT",
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body: JSON.stringify({
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msgtype: "m.text",
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body
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}),
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headers: {
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"Content-Type": "application/json"
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}
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})
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}
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62
build/static/chat.js
Normal file
62
build/static/chat.js
Normal file
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@ -0,0 +1,62 @@
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import {ElemJS, q, ejs} from "./basic.js"
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import {store} from "./store/store.js"
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class Chat extends ElemJS {
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constructor() {
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super(q("#c-chat"))
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this.removableSubscriptions = []
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store.activeRoom.subscribe("changeSelf", this.changeRoom.bind(this))
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this.render()
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}
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unsubscribe() {
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this.removableSubscriptions.forEach(({name, target, subscription}) => {
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target.unsubscribe(name, subscription)
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})
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this.removableSubscriptions.length = 0
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}
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changeRoom() {
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// disconnect from the previous room
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this.unsubscribe()
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// connect to the new room's timeline updater
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if (store.activeRoom.exists()) {
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const timeline = store.activeRoom.value().timeline
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const subscription = (_, {element, index}) => {
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this.childAt(index, element)
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}
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const name = "addItem"
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this.removableSubscriptions.push({name, target: timeline, subscription})
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timeline.subscribe(name, subscription)
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}
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this.render()
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}
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render() {
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this.clearChildren()
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if (store.activeRoom.exists()) {
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const timeline = store.activeRoom.value().timeline
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for (const group of timeline.getGroupedEvents()) {
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const first = group[0]
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this.child(
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ejs("div").class("c-message-group").child(
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ejs("div").class("c-message-group__avatar").child(
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ejs("div").class("c-message-group__icon")
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),
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ejs("div").class("c-message-group__messages").child(
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ejs("div").class("c-message-group__intro").child(
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ejs("div").class("c-message-group__name").text(first.sender)
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),
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...group.map(event => timeline.elementsMap.get(event.event_id))
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)
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)
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)
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}
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}
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}
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}
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new Chat()
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@ -208,6 +208,7 @@ body {
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display: grid;
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grid-template-rows: 1fr auto;
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align-items: end;
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flex: 1;
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}
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.c-chat__messages {
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height: 100%;
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@ -1,5 +1,6 @@
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import {q, ElemJS, ejs} from "./basic.js"
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import {store} from "./store/store.js"
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import {Timeline} from "./Timeline.js"
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import * as lsm from "./lsm.js"
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function resolveMxc(url, size, method) {
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@ -66,6 +67,7 @@ class Room extends ElemJS {
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this.id = id
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this.data = data
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this.timeline = new Timeline()
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this.class("c-room")
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@ -23,7 +23,9 @@ class Subscribable {
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}
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unsubscribe(event, callback) {
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this.events[event].push(callback)
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const index = this.events[event].indexOf(callback)
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if (index === -1) throw new Error(`Tried to remove a nonexisting subscription from event ${event}`)
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this.events[event].splice(index, 1)
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}
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broadcast(event, data) {
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@ -48,6 +48,8 @@ function manageSync(root) {
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if (!store.rooms.has(id)) {
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store.rooms.askAdd(id, room)
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}
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const timeline = store.rooms.get(id).value().timeline
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timeline.updateEvents(room.timeline.events)
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})
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} catch (e) {
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console.error(root)
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10
spec.js
10
spec.js
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@ -64,6 +64,16 @@ module.exports = [
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source: "/js/lsm.js",
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target: "/static/lsm.js"
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},
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{
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type: "js",
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source: "/js/Timeline.js",
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target: "/static/Timeline.js"
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},
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{
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type: "js",
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source: "/js/chat.js",
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target: "/static/chat.js"
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},
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{
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type: "file",
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source: "/assets/fonts/whitney-500.woff",
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@ -38,6 +38,7 @@ html
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script(type="module" src=getStatic("/js/chat-input.js"))
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script(type="module" src=getStatic("/js/room-picker.js"))
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script(type="module" src=getStatic("/js/sync/sync.js"))
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script(type="module" src=getStatic("/js/chat.js"))
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title Carbon
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body
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main.main
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@ -48,7 +49,7 @@ html
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.c-rooms#c-rooms
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.c-chat
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.c-chat__messages
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.c-chat__inner
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.c-chat__inner#c-chat
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+message-notice("You've reached the start of the conversation.")
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+message("Cadence", [
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`the second button is for rooms (gonna call them "channels" to make discord users happy) that are not in a group (which will be most rooms - few people set up groups because they're so annoying, and many communities of people only need a single chatroom)`,
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95
src/js/Timeline.js
Normal file
95
src/js/Timeline.js
Normal file
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@ -0,0 +1,95 @@
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import {ElemJS} from "./basic.js"
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import {Subscribable} from "./store/Subscribable.js"
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class Event extends ElemJS {
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constructor(data) {
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super("div")
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this.class("c-message")
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this.data = null
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this.update(data)
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}
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update(data) {
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this.data = data
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this.render()
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}
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render() {
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this.child(this.data.content.body)
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}
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}
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class Timeline extends Subscribable {
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constructor() {
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super()
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Object.assign(this.events, {
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addItem: [],
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removeItem: []
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})
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Object.assign(this.eventDeps, {
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addItem: [],
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removeItem: []
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})
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this.list = []
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this.map = new Map()
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this.elementsMap = new Map()
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this.elementsList = []
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}
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_binarySearch(event, min = 0, max = -1) {
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if (this.list.length === 0) return {success: false, i: 0}
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if (max === -1) max = this.list.length - 1
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let mid = Math.floor((max + min) / 2)
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// success condition
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if (this.list[mid] && this.list[mid].event_id === event.event_id) return {success: true, i: mid}
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// failed condition
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if (min >= max) {
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while (mid !== -1 && (!this.list[mid] || this.list[mid].origin_server_ts > event.origin_server_ts)) mid--
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return {
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success: false,
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i: mid + 1
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}
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}
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// recurse (below)
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if (this.list[mid].origin_server_ts > event.origin_server_ts) return this._binarySearch(event, min, mid-1)
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// recurse (above)
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else return this._binarySearch(event, mid+1, max)
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}
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updateEvents(events) {
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for (const event of events) {
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if (this.map.has(event.event_id)) {
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this.map.set(event.event_id, event)
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this.elementsMap.get(event.event_id).update(this.map.get(event.event_id))
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} else {
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const index = this._binarySearch(event).i
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this.list.splice(index, 0, event)
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this.map.set(event.event_id, event)
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const e = new Event(event)
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this.elementsList.splice(index, 0, e)
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this.elementsMap.set(event.event_id, e)
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this.broadcast("addItem", {index, element: e})
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}
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}
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}
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getGroupedEvents() {
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let currentSender = Symbol("N/A")
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let groups = []
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let currentGroup = []
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for (const event of this.list) {
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if (event.sender === currentSender) {
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currentGroup.push(event)
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} else {
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if (currentGroup.length) groups.push(currentGroup)
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currentGroup = [event]
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currentSender = event.sender
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}
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}
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if (currentGroup.length) groups.push(currentGroup)
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return groups
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}
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}
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export {Timeline}
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@ -119,6 +119,18 @@ class ElemJS {
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return this;
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}
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childAt(index, toAdd) {
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if (typeof toAdd === "object" && toAdd !== null) {
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toAdd.parent = this;
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this.children.splice(index, 0, toAdd);
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if (index >= this.element.childNodes.length) {
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this.element.appendChild(toAdd.element)
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} else {
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this.element.childNodes[index].insertAdjacentElement("beforebegin", toAdd.element)
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}
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}
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}
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|
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/**
|
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* Remove all children from the element.
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*/
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|
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|
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@ -1,17 +1,46 @@
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import {q} from "./basic.js"
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import {store} from "./store/store.js"
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import * as lsm from "./lsm.js"
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let sentIndex = 0
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const chat = q("#c-chat-textarea")
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chat.addEventListener("keydown", event => {
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if (event.key === "Enter" && !event.shiftKey && !event.ctrlKey) {
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chat.value = ""
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event.preventDefault()
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const body = chat.value
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send(chat.value)
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chat.value = ""
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fixHeight()
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}
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})
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chat.addEventListener("input", () => {
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fixHeight()
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})
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function fixHeight() {
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chat.style.height = "0px"
|
||||
console.log(chat.clientHeight, chat.scrollHeight)
|
||||
chat.style.height = (chat.scrollHeight + 1) + "px"
|
||||
})
|
||||
}
|
||||
|
||||
function getTxnId() {
|
||||
return Date.now() + (sentIndex++)
|
||||
}
|
||||
|
||||
function send(body) {
|
||||
if (!store.activeRoom.exists()) return
|
||||
const id = store.activeRoom.value().id
|
||||
return fetch(`${lsm.get("domain")}/_matrix/client/r0/rooms/${id}/send/m.room.message/${getTxnId()}?access_token=${lsm.get("access_token")}`, {
|
||||
method: "PUT",
|
||||
body: JSON.stringify({
|
||||
msgtype: "m.text",
|
||||
body
|
||||
}),
|
||||
headers: {
|
||||
"Content-Type": "application/json"
|
||||
}
|
||||
})
|
||||
}
|
||||
|
|
|
|||
62
src/js/chat.js
Normal file
62
src/js/chat.js
Normal file
|
|
@ -0,0 +1,62 @@
|
|||
import {ElemJS, q, ejs} from "./basic.js"
|
||||
import {store} from "./store/store.js"
|
||||
|
||||
class Chat extends ElemJS {
|
||||
constructor() {
|
||||
super(q("#c-chat"))
|
||||
|
||||
this.removableSubscriptions = []
|
||||
|
||||
store.activeRoom.subscribe("changeSelf", this.changeRoom.bind(this))
|
||||
|
||||
this.render()
|
||||
}
|
||||
|
||||
unsubscribe() {
|
||||
this.removableSubscriptions.forEach(({name, target, subscription}) => {
|
||||
target.unsubscribe(name, subscription)
|
||||
})
|
||||
this.removableSubscriptions.length = 0
|
||||
}
|
||||
|
||||
changeRoom() {
|
||||
// disconnect from the previous room
|
||||
this.unsubscribe()
|
||||
// connect to the new room's timeline updater
|
||||
if (store.activeRoom.exists()) {
|
||||
const timeline = store.activeRoom.value().timeline
|
||||
const subscription = (_, {element, index}) => {
|
||||
this.childAt(index, element)
|
||||
}
|
||||
const name = "addItem"
|
||||
this.removableSubscriptions.push({name, target: timeline, subscription})
|
||||
timeline.subscribe(name, subscription)
|
||||
}
|
||||
this.render()
|
||||
}
|
||||
|
||||
render() {
|
||||
this.clearChildren()
|
||||
if (store.activeRoom.exists()) {
|
||||
const timeline = store.activeRoom.value().timeline
|
||||
for (const group of timeline.getGroupedEvents()) {
|
||||
const first = group[0]
|
||||
this.child(
|
||||
ejs("div").class("c-message-group").child(
|
||||
ejs("div").class("c-message-group__avatar").child(
|
||||
ejs("div").class("c-message-group__icon")
|
||||
),
|
||||
ejs("div").class("c-message-group__messages").child(
|
||||
ejs("div").class("c-message-group__intro").child(
|
||||
ejs("div").class("c-message-group__name").text(first.sender)
|
||||
),
|
||||
...group.map(event => timeline.elementsMap.get(event.event_id))
|
||||
)
|
||||
)
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
new Chat()
|
||||
|
|
@ -1,5 +1,6 @@
|
|||
import {q, ElemJS, ejs} from "./basic.js"
|
||||
import {store} from "./store/store.js"
|
||||
import {Timeline} from "./Timeline.js"
|
||||
import * as lsm from "./lsm.js"
|
||||
|
||||
function resolveMxc(url, size, method) {
|
||||
|
|
@ -66,6 +67,7 @@ class Room extends ElemJS {
|
|||
|
||||
this.id = id
|
||||
this.data = data
|
||||
this.timeline = new Timeline()
|
||||
|
||||
this.class("c-room")
|
||||
|
||||
|
|
|
|||
|
|
@ -23,7 +23,9 @@ class Subscribable {
|
|||
}
|
||||
|
||||
unsubscribe(event, callback) {
|
||||
this.events[event].push(callback)
|
||||
const index = this.events[event].indexOf(callback)
|
||||
if (index === -1) throw new Error(`Tried to remove a nonexisting subscription from event ${event}`)
|
||||
this.events[event].splice(index, 1)
|
||||
}
|
||||
|
||||
broadcast(event, data) {
|
||||
|
|
|
|||
|
|
@ -48,6 +48,8 @@ function manageSync(root) {
|
|||
if (!store.rooms.has(id)) {
|
||||
store.rooms.askAdd(id, room)
|
||||
}
|
||||
const timeline = store.rooms.get(id).value().timeline
|
||||
timeline.updateEvents(room.timeline.events)
|
||||
})
|
||||
} catch (e) {
|
||||
console.error(root)
|
||||
|
|
|
|||
|
|
@ -4,7 +4,7 @@
|
|||
display: grid
|
||||
grid-template-rows: 1fr auto
|
||||
align-items: end
|
||||
// height: 100%
|
||||
flex: 1
|
||||
|
||||
&__messages
|
||||
height: 100%
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue