Carbon/src/js/events/membership.js

const {MatrixEvent} = require("./event")

class MembershipEvent extends MatrixEvent {
	static canRender(event) {
		return event.type == "m.room.member"
	}
}


class JoinedEvent extends MembershipEvent {
	static canRender(event) {
		return super.canRender(event) && event.content.membership === "join"
	}
	render() {
		super.render()
		return this.text("joined the room")
	}
}

class InvitedEvent extends MembershipEvent {
	static canRender(event) {
		return super.canRender(event) && event.content.membership === "invite"
	}
	render() {
		super.render()
		return this.text(`invited ${this.data.content.displayname}`)
	}
}

class LeaveEvent extends MembershipEvent {
	static canRender(event) {
		return super.canRender(event) && event.content.membership === "leave"
	}
	render() {
		super.render()
		return this.text(`left the room`)
	}
}

class UnknownMembership extends MembershipEvent {
	render() {
		super.render()
		return this.text("unknown membership event")
	}
}

module.exports = [JoinedEvent, InvitedEvent, LeaveEvent, UnknownMembership]