calculate room name internal Room method

This commit is contained in:
Devin R 2020-03-27 16:14:16 -04:00
parent aa1e69e98b
commit 20618e7a20

View file

@ -17,8 +17,14 @@ use std::collections::HashMap;
use crate::api::r0 as api;
use crate::events::collections::all::{RoomEvent, StateEvent};
use crate::events::room::member::{MemberEvent, MembershipState};
use crate::events::room::{
aliases::AliasesEvent,
canonical_alias::CanonicalAliasEvent,
member::{MemberEvent, MembershipState},
name::{NameEvent},
};
use crate::events::EventResult;
use crate::identifiers::{RoomAliasId};
use crate::session::Session;
use std::sync::{Arc, RwLock};
@ -34,6 +40,17 @@ pub type Token = String;
pub type RoomId = String;
pub type UserId = String;
#[derive(Debug, Default)]
/// `RoomName` allows the calculation of a text room name.
pub struct RoomName {
/// The displayed name of the room.
name: Option<String>,
/// The canonical alias of the room ex. `#room-name:example.com` and port number.
canonical_alias: Option<RoomAliasId>,
/// List of `RoomAliasId`s the room has been given.
aliases: Vec<RoomAliasId>,
}
#[derive(Debug)]
/// A Matrix room member.
pub struct RoomMember {
@ -52,6 +69,8 @@ pub struct RoomMember {
pub struct Room {
/// The unique id of the room.
pub room_id: RoomId,
/// The name of the room, clients use this to represent a room.
pub room_name: RoomName,
/// The mxid of our own user.
pub own_user_id: UserId,
/// The mxid of the room creator.
@ -64,6 +83,46 @@ pub struct Room {
pub encrypted: bool,
}
impl RoomName {
pub fn push_alias(&mut self, alias: RoomAliasId) -> bool {
self.aliases.push(alias);
true
}
pub fn set_canonical(&mut self, alias: RoomAliasId) -> bool {
self.canonical_alias = Some(alias);
true
}
pub fn set_name(&mut self, name: &str) -> bool {
self.name = Some(name.to_string());
true
}
pub fn calculate_name(&self, room_id: &RoomId, members: &HashMap<UserId, RoomMember>) -> String {
// https://github.com/matrix-org/matrix-js-sdk/blob/33941eb37bffe41958ba9887fc8070dfb1a0ee76/src/models/room.js#L1823
// the order in which we check for a name ^^
if let Some(name) = &self.name {
name.clone()
} else if let Some(alias) = &self.canonical_alias {
alias.alias().to_string()
} else if !self.aliases.is_empty() {
self.aliases[0].alias().to_string()
} else {
// TODO
let mut names = members.values().flat_map(|m| m.display_name.clone()).take(3).collect::<Vec<_>>();
if names.is_empty() {
format!("Room {}", room_id)
} else {
// stablize order
names.sort();
names.join(", ").to_string()
}
}
}
}
impl Room {
/// Create a new room.
///
@ -75,6 +134,7 @@ impl Room {
pub fn new(room_id: &str, own_user_id: &str) -> Self {
Room {
room_id: room_id.to_string(),
room_name: RoomName::default(),
own_user_id: own_user_id.to_owned(),
creator: None,
members: HashMap::new(),
@ -146,6 +206,50 @@ impl Room {
}
}
/// Add to the list of `RoomAliasId`s.
fn room_aliases(&mut self, alias: &RoomAliasId) -> bool {
self.room_name.push_alias(alias.clone());
true
}
/// RoomAliasId is `#alias:hostname` and `port`
fn canonical_alias(&mut self, alias: &RoomAliasId) -> bool {
self.room_name.set_canonical(alias.clone());
true
}
fn name_room(&mut self, name: &str) -> bool {
self.room_name.set_name(name);
true
}
/// Handle a room.aliases event, updating the room state if necessary.
/// Returns true if the room name changed, false otherwise.
pub fn handle_room_aliases(&mut self, event: &AliasesEvent) -> bool {
match event.content.aliases.as_slice() {
[alias] => self.room_aliases(alias),
_ => false,
}
}
/// Handle a room.canonical_alias event, updating the room state if necessary.
/// Returns true if the room name changed, false otherwise.
pub fn handle_canonical(&mut self, event: &CanonicalAliasEvent) -> bool {
match &event.content.alias {
Some(name) => self.canonical_alias(&name),
_ => false,
}
}
/// Handle a room.name event, updating the room state if necessary.
/// Returns true if the room name changed, false otherwise.
pub fn handle_room_name(&mut self, event: &NameEvent) -> bool {
match event.content.name() {
Some(name) => self.name_room(name),
_ => false,
}
}
/// Receive a timeline event for this room and update the room state.
///
/// Returns true if the joined member list changed, false otherwise.
@ -156,6 +260,9 @@ impl Room {
pub fn receive_timeline_event(&mut self, event: &RoomEvent) -> bool {
match event {
RoomEvent::RoomMember(m) => self.handle_membership(m),
RoomEvent::RoomName(n) => self.handle_room_name(n),
RoomEvent::RoomCanonicalAlias(ca) => self.handle_canonical(ca),
RoomEvent::RoomAliases(a) => self.handle_room_aliases(a),
_ => false,
}
}
@ -170,6 +277,9 @@ impl Room {
pub fn receive_state_event(&mut self, event: &StateEvent) -> bool {
match event {
StateEvent::RoomMember(m) => self.handle_membership(m),
StateEvent::RoomName(n) => self.handle_room_name(n),
StateEvent::RoomCanonicalAlias(ca) => self.handle_canonical(ca),
StateEvent::RoomAliases(a) => self.handle_room_aliases(a),
_ => false,
}
}