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//! Types for the *m.room.history_visibility* event. use ruma_events_macros::ruma_event; use serde::{Deserialize, Serialize}; ruma_event! { /// This event controls whether a member of a room can see the events that happened in a room /// from before they joined. HistoryVisibilityEvent { kind: StateEvent, event_type: "m.room.history_visibility", content: { /// Who can see the room history. pub history_visibility: HistoryVisibility, }, } } /// Who can see a room's history. #[derive(Clone, Copy, Debug, Deserialize, PartialEq, Serialize)] 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*. #[serde(rename = "invited")] 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*. #[serde(rename = "joined")] 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. #[serde(rename = "shared")] 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. #[serde(rename = "world_readable")] WorldReadable, /// Additional variants may be added in the future and will not be considered breaking changes /// to ruma-events. #[doc(hidden)] #[serde(skip)] __Nonexhaustive, } impl_enum! { HistoryVisibility { Invited => "invited", Joined => "joined", Shared => "shared", WorldReadable => "world_readable", } }