//! Types for the [`m.room.history_visibility`] event.
//!
//! [`m.room.history_visibility`]: https://spec.matrix.org/v1.2/client-server-api/#mroomhistory_visibility
use ruma_events_macros::EventContent;
use ruma_serde::StringEnum;
use serde::{Deserialize, Serialize};
use crate::PrivOwnedStr;
/// The content of an `m.room.history_visibility` event.
///
/// This event controls whether a member of a room can see the events that happened in a room from
/// before they joined.
#[derive(Clone, Debug, Deserialize, Serialize, EventContent)]
#[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
#[ruma_event(type = "m.room.history_visibility", kind = State)]
pub struct RoomHistoryVisibilityEventContent {
/// Who can see the room history.
#[ruma_event(skip_redaction)]
pub history_visibility: HistoryVisibility,
}
impl RoomHistoryVisibilityEventContent {
/// Creates a new `RoomHistoryVisibilityEventContent` with the given policy.
pub fn new(history_visibility: HistoryVisibility) -> Self {
Self { history_visibility }
}
}
/// Who can see a room's history.
///
/// This type can hold an arbitrary string. To check for formats that are not available as a
/// documented variant here, use its string representation, obtained through `.as_str()`.
#[derive(Clone, Debug, PartialEq, Eq, StringEnum)]
#[ruma_enum(rename_all = "snake_case")]
#[non_exhaustive]
pub enum HistoryVisibility {
/// Previous events are accessible to newly joined members from the point they were invited
/// onwards.
///
/// Events stop being accessible when the member's state changes to something other than
/// *invite* or *join*.
Invited,
/// Previous events are accessible to newly joined members from the point they joined the room
/// onwards.
/// Events stop being accessible when the member's state changes to something other than
/// *join*.
Joined,
/// Previous events are always accessible to newly joined members.
///
/// All events in the room are accessible, even those sent when the member was not a part of
/// the room.
Shared,
/// All events while this is the `HistoryVisibility` value may be shared by any participating
/// homeserver with anyone, regardless of whether they have ever joined the room.
WorldReadable,
#[doc(hidden)]
_Custom(PrivOwnedStr),
}
impl HistoryVisibility {
/// Creates a string slice from this `HistoryVisibility`.
pub fn as_str(&self) -> &str {
self.as_ref()
}
}