Display unread/notification counters on rooms

src/js/room-picker.js

@@ -56,12 +56,65 @@ class Group extends ElemJS {
 	}
 }
 
+class RoomNotifier extends ElemJS {
+	constructor() {
+		super("div")
+
+		this.classes = [
+			"notifications",
+			"unreads",
+			"none"
+		]
+
+		this.class("c-room__number")
+		this.state = {
+			notifications: 0,
+			unreads: 0
+		}
+		this.render()
+	}
+
+	/**
+	 * @param {object} state
+	 * @param {number} [state.notifications]
+	 * @param {number} [state.unreads]
+	 */
+	update(state) {
+		Object.assign(this.state, state)
+		this.render()
+	}
+
+	render() {
+		const display = {
+			number: this.state.notifications || this.state.unreads,
+			kind: this.state.notifications ? "notifications" : "unreads"
+		}
+		// set number
+		if (display.number) {
+			this.text(display.number)
+		} else {
+			this.text("")
+			display.kind = "none"
+		}
+		// set class
+		this.classes.forEach(c => {
+			const name = "c-room__number--" + c
+			if (c === display.kind) {
+				this.class(name)
+			} else {
+				this.removeClass(name)
+			}
+		})
+	}
+}
+
 class Room extends ElemJS {
 	constructor(id, data) {
 		super("div")
 
 		this.id = id
 		this.data = data
+		this.number = new RoomNotifier()
 		this.timeline = new Timeline(this)
 		this.group = null
 		this.members = new SubscribeMapList(SubscribeValue)
@@ -75,22 +128,21 @@ class Room extends ElemJS {
 	}
 
 	get order() {
-		if (this.group) {
-			let chars = 36
-			let total = 0
-			const name = this.getName()
-			for (let i = 0; i < name.length; i++) {
-				const c = name[i]
-				let d = 0
-				if (c >= "A" && c <= "Z") d = c.charCodeAt(0) - 65 + 10
-				else if (c >= "a" && c <= "z") d = c.charCodeAt(0) - 97 + 10
-				else if (c >= "0" && c <= "9") d = +c
-				total += d * chars ** (-i)
-			}
-			return total
+		let string = ""
+		if (this.number.state.notifications) {
+			string += "N"
+		} else if (this.number.state.unreads) {
+			string += "U"
 		} else {
-			return -this.timeline.latest
+			string += "_"
 		}
+		if (this.group) {
+			string += this.name
+		} else {
+			string += (4000000000000 - this.timeline.latest) // good until 2065 :)
+		}
+		console.log(string)
+		return string
 	}
 
 	getMemberName(mxid) {
@@ -174,6 +226,7 @@ class Room extends ElemJS {
 			this.child(ejs("div").class("c-room__icon", "c-room__icon--no-icon"))
 		}
 		this.child(ejs("div").class("c-room__name").text(this.getName()))
+		this.child(this.number)
 		// active
 		const active = store.activeRoom.value() === this
 		this.element.classList[active ? "add" : "remove"]("c-room--active")
@@ -193,6 +246,7 @@ class Rooms extends ElemJS {
 		store.activeGroup.subscribe("changeSelf", this.render.bind(this))
 		store.directs.subscribe("changeItem", this.render.bind(this))
 		store.newEvents.subscribe("changeSelf", this.sort.bind(this))
+		store.notificationsChange.subscribe("changeSelf", this.sort.bind(this))
 
 		this.render()
 	}

src/js/store/store.js

@@ -9,7 +9,8 @@ const store = {
 	directs: new SubscribeSet(),
 	activeGroup: new SubscribeValue(),
 	activeRoom: new SubscribeValue(),
-	newEvents: new Subscribable()
+	newEvents: new Subscribable(),
+	notificationsChange: new Subscribable()
 }
 
 window.store = store

src/js/store/subscribe_map.js

@@ -1,40 +1,54 @@
 const {Subscribable} = require("./subscribable.js")
-const {SubscribeValue} = require("./subscribe_value.js")
 
 class SubscribeMap extends Subscribable {
 	constructor() {
 		super()
 		Object.assign(this.events, {
 			addItem: [],
+			editItem: [],
+			deleteItem: [],
 			changeItem: [],
-			removeItem: []
+			askSet: []
 		})
-		this.map = new Map()
+		Object.assign(this.eventDeps, {
+			addItem: ["changeItem"],
+			editItem: ["changeItem"],
+			deleteItem: ["changeItem"],
+			changeItem: [],
+			askSet: []
+		})
+		this.backing = new Map()
 	}
 
 	has(key) {
-		return this.map.has(key) && this.map.get(key).exists()
+		return this.backing.has(key)
 	}
 
-	get(key) {
-		if (this.map.has(key)) {
-			return this.map.get(key)
-		} else {
-			this.map.set(key, new SubscribeValue())
+	forEach(f) {
+		for (const key of this.backing.keys()) {
+			f(key, this.backing.get(key))
 		}
 	}
 
+	askSet(key, value) {
+		this.broadcast("askSet", key, value)
+	}
+
 	set(key, value) {
-		let s
-		if (this.map.has(key)) {
-			s = this.map.get(key).set(value)
-			this.broadcast("changeItem", key)
-		} else {
-			s = new SubscribeValue().set(value)
-			this.map.set(key, s)
+		const existed = this.backing.has(key)
+		this.backing.set(key, value)
+		if (existed) {
 			this.broadcast("addItem", key)
+		} else {
+			this.broadcast("editItem", key)
+		}
+	}
+
+	delete(key) {
+		if (this.backing.has(key)) {
+			this.backing.delete(key)
+			this.broadcast("deleteItem", key)
 		}
-		return s
 	}
 }
 

src/js/store/subscribe_map_list.js

@@ -54,6 +54,15 @@ class SubscribeMapList extends Subscribable {
 	}
 
 	sort() {
+		const key = this.list[0]
+		if (typeof this.map.get(key).value().order === "number") {
+			this.sortByNumber()
+		} else {
+			this.sortByString()
+		}
+	}
+
+	sortByNumber() {
 		this.list.sort((a, b) => {
 			const orderA = this.map.get(a).value().order
 			const orderB = this.map.get(b).value().order
@@ -62,6 +71,20 @@ class SubscribeMapList extends Subscribable {
 		this.broadcast("changeItem")
 	}
 
+	sortByString() {
+		this.list.sort((a, b) => {
+			let r
+			const orderA = this.map.get(a).value().order
+			const orderB = this.map.get(b).value().order
+			if (orderA < orderB) r = -1
+			else if (orderA > orderB) r = 1
+			else r = 0
+			console.log("comparing", orderA, orderB, r)
+			return r
+		})
+		this.broadcast("changeItem")
+	}
+
 	_add(key, value, start) {
 		let s
 		if (this.map.has(key)) {

src/js/sync/sync.js

@@ -37,6 +37,7 @@ function sync() {
 function manageSync(root) {
 	try {
 		let newEvents = false
+		let notificationsChange = false
 
 		// set up directs
 		if (root.account_data) {
@@ -66,6 +67,14 @@ function manageSync(root) {
 						}
 					}
 					if (data.ephemeral) timeline.updateEphemeral(data.ephemeral.events)
+					if (data.unread_notifications) {
+						timeline.updateNotificationCount(data.unread_notifications.notification_count)
+						notificationsChange = true
+					}
+					if (data["org.matrix.msc2654.unread_count"] != undefined) {
+						timeline.updateUnreadCount(data["org.matrix.msc2654.unread_count"])
+						notificationsChange = true
+					}
 				})
 			}
 		}
@@ -109,6 +118,7 @@ function manageSync(root) {
 		}
 
 		if (newEvents) store.newEvents.broadcast("changeSelf")
+		if (notificationsChange) store.notificationsChange.broadcast("changeSelf")
 	} catch (e) {
 		console.error(root)
 		throw e

src/js/timeline.js

@@ -1,6 +1,7 @@
 const {ElemJS, ejs} = require("./basic.js")
 const {Subscribable} = require("./store/subscribable.js")
 const {SubscribeValue} = require("./store/subscribe_value.js")
+const {SubscribeMap} = require("./store/subscribe_map.js")
 const {store} = require("./store/store.js")
 const {Anchor} = require("./anchor.js")
 const {Sender} = require("./sender.js")
@@ -197,6 +198,7 @@ class Timeline extends Subscribable {
 		this.pending = new Set()
 		this.pendingEdits = []
 		this.typing = new SubscribeValue().set([])
+		this.userReads = new SubscribeMap()
 		this.from = null
 	}
 
@@ -280,8 +282,24 @@ class Timeline extends Subscribable {
 			if (eventData.type === "m.typing") {
 				this.typing.set(eventData.content.user_ids)
 			}
+			if (eventData.type === "m.receipt") {
+				for (const eventID of Object.keys(eventData.content)) {
+					for (const user of Object.keys(eventData.content[eventID]["m.read"])) {
+						this.userReads.set(user, eventID)
 					}
 				}
+				// console.log("Updated read receipts:", this.userReads)
+			}
+		}
+	}
+
+	updateUnreadCount(count) {
+		this.room.number.update({unreads: count})
+	}
+
+	updateNotificationCount(count) {
+		this.room.number.update({notifications: count})
+	}
 
 	removeEvent(id) {
 		if (!this.map.has(id)) throw new Error(`Tried to delete event ID ${id} which does not exist`)

src/sass/components/rooms.sass

@@ -43,3 +43,22 @@ $icon-padding: 8px
     white-space: nowrap
     overflow: hidden
     text-overflow: ellipsis
+    flex: 1
+
+  &__number
+    flex-shrink: 0
+    line-height: 1
+    padding: 4px 5px
+    border-radius: 5px
+    font-size: 14px
+
+    &--none
+      display: none
+
+    &--unreads
+      background-color: #ddd
+      color: #111
+
+    &--notifications
+      background-color: #ffac4b
+      color: #000