ruma_events/room/message/
without_relation.rs

1use serde::Serialize;
2
3use super::{
4    AddMentions, ForwardThread, MessageType, Relation, ReplacementMetadata, ReplyMetadata,
5    ReplyWithinThread, RoomMessageEventContent,
6};
7use crate::{
8    relation::{InReplyTo, Replacement, Thread},
9    Mentions,
10};
11
12/// Form of [`RoomMessageEventContent`] without relation.
13#[derive(Clone, Debug, Serialize)]
14#[cfg_attr(not(ruma_unstable_exhaustive_types), non_exhaustive)]
15pub struct RoomMessageEventContentWithoutRelation {
16    /// A key which identifies the type of message being sent.
17    ///
18    /// This also holds the specific content of each message.
19    #[serde(flatten)]
20    pub msgtype: MessageType,
21
22    /// The [mentions] of this event.
23    ///
24    /// [mentions]: https://spec.matrix.org/latest/client-server-api/#user-and-room-mentions
25    #[serde(rename = "m.mentions", skip_serializing_if = "Option::is_none")]
26    pub mentions: Option<Mentions>,
27}
28
29impl RoomMessageEventContentWithoutRelation {
30    /// Creates a new `RoomMessageEventContentWithoutRelation` with the given `MessageType`.
31    pub fn new(msgtype: MessageType) -> Self {
32        Self { msgtype, mentions: None }
33    }
34
35    /// A constructor to create a plain text message.
36    pub fn text_plain(body: impl Into<String>) -> Self {
37        Self::new(MessageType::text_plain(body))
38    }
39
40    /// A constructor to create an html message.
41    pub fn text_html(body: impl Into<String>, html_body: impl Into<String>) -> Self {
42        Self::new(MessageType::text_html(body, html_body))
43    }
44
45    /// A constructor to create a markdown message.
46    #[cfg(feature = "markdown")]
47    pub fn text_markdown(body: impl AsRef<str> + Into<String>) -> Self {
48        Self::new(MessageType::text_markdown(body))
49    }
50
51    /// A constructor to create a plain text notice.
52    pub fn notice_plain(body: impl Into<String>) -> Self {
53        Self::new(MessageType::notice_plain(body))
54    }
55
56    /// A constructor to create an html notice.
57    pub fn notice_html(body: impl Into<String>, html_body: impl Into<String>) -> Self {
58        Self::new(MessageType::notice_html(body, html_body))
59    }
60
61    /// A constructor to create a markdown notice.
62    #[cfg(feature = "markdown")]
63    pub fn notice_markdown(body: impl AsRef<str> + Into<String>) -> Self {
64        Self::new(MessageType::notice_markdown(body))
65    }
66
67    /// A constructor to create a plain text emote.
68    pub fn emote_plain(body: impl Into<String>) -> Self {
69        Self::new(MessageType::emote_plain(body))
70    }
71
72    /// A constructor to create an html emote.
73    pub fn emote_html(body: impl Into<String>, html_body: impl Into<String>) -> Self {
74        Self::new(MessageType::emote_html(body, html_body))
75    }
76
77    /// A constructor to create a markdown emote.
78    #[cfg(feature = "markdown")]
79    pub fn emote_markdown(body: impl AsRef<str> + Into<String>) -> Self {
80        Self::new(MessageType::emote_markdown(body))
81    }
82
83    /// Transform `self` into a `RoomMessageEventContent` with the given relation.
84    pub fn with_relation(
85        self,
86        relates_to: Option<Relation<RoomMessageEventContentWithoutRelation>>,
87    ) -> RoomMessageEventContent {
88        let Self { msgtype, mentions } = self;
89        RoomMessageEventContent { msgtype, relates_to, mentions }
90    }
91
92    /// Turns `self` into a [rich reply] to the message using the given metadata.
93    ///
94    /// Sets the `in_reply_to` field inside `relates_to`, and optionally the `rel_type` to
95    /// `m.thread` if the metadata has a `thread` and `ForwardThread::Yes` is used.
96    ///
97    /// If `AddMentions::Yes` is used, the `sender` in the metadata is added as a user mention.
98    ///
99    /// [rich reply]: https://spec.matrix.org/latest/client-server-api/#rich-replies
100    #[track_caller]
101    pub fn make_reply_to<'a>(
102        mut self,
103        metadata: impl Into<ReplyMetadata<'a>>,
104        forward_thread: ForwardThread,
105        add_mentions: AddMentions,
106    ) -> RoomMessageEventContent {
107        let metadata = metadata.into();
108        let original_event_id = metadata.event_id.to_owned();
109
110        let original_thread_id = metadata
111            .thread
112            .filter(|_| forward_thread == ForwardThread::Yes)
113            .map(|thread| thread.event_id.clone());
114        let relates_to = if let Some(event_id) = original_thread_id {
115            Relation::Thread(Thread::plain(event_id.to_owned(), original_event_id.to_owned()))
116        } else {
117            Relation::Reply { in_reply_to: InReplyTo { event_id: original_event_id.to_owned() } }
118        };
119
120        if add_mentions == AddMentions::Yes {
121            self.mentions
122                .get_or_insert_with(Mentions::new)
123                .user_ids
124                .insert(metadata.sender.to_owned());
125        }
126
127        self.with_relation(Some(relates_to))
128    }
129
130    /// Turns `self` into a new message for a [thread], that is optionally a reply.
131    ///
132    /// Looks for the `thread` in the given metadata. If it exists, this message will be in the same
133    /// thread. If it doesn't, a new thread is created with the `event_id` in the metadata as the
134    /// root.
135    ///
136    /// It also sets the `in_reply_to` field inside `relates_to` to point the `event_id`
137    /// in the metadata. If `ReplyWithinThread::Yes` is used, the metadata should be constructed
138    /// from the event to make a reply to, otherwise it should be constructed from the latest
139    /// event in the thread.
140    ///
141    /// If `AddMentions::Yes` is used, the `sender` in the metadata is added as a user mention.
142    ///
143    /// [thread]: https://spec.matrix.org/latest/client-server-api/#threading
144    pub fn make_for_thread<'a>(
145        self,
146        metadata: impl Into<ReplyMetadata<'a>>,
147        is_reply: ReplyWithinThread,
148        add_mentions: AddMentions,
149    ) -> RoomMessageEventContent {
150        let metadata = metadata.into();
151
152        let mut content = if is_reply == ReplyWithinThread::Yes {
153            self.make_reply_to(metadata, ForwardThread::No, add_mentions)
154        } else {
155            self.into()
156        };
157
158        let thread_root = if let Some(Thread { event_id, .. }) = &metadata.thread {
159            event_id.to_owned()
160        } else {
161            metadata.event_id.to_owned()
162        };
163
164        content.relates_to = Some(Relation::Thread(Thread {
165            event_id: thread_root,
166            in_reply_to: Some(InReplyTo { event_id: metadata.event_id.to_owned() }),
167            is_falling_back: is_reply == ReplyWithinThread::No,
168        }));
169
170        content
171    }
172
173    /// Turns `self` into a [replacement] (or edit) for a given message.
174    ///
175    /// The first argument after `self` can be `&OriginalRoomMessageEvent` or
176    /// `&OriginalSyncRoomMessageEvent` if you don't want to create `ReplacementMetadata` separately
177    /// before calling this function.
178    ///
179    /// This takes the content and sets it in `m.new_content`, and modifies the `content` to include
180    /// a fallback.
181    ///
182    /// If this message contains [`Mentions`], they are copied into `m.new_content` to keep the same
183    /// mentions, but the ones in `content` are filtered with the ones in the
184    /// [`ReplacementMetadata`] so only new mentions will trigger a notification.
185    ///
186    /// # Panics
187    ///
188    /// Panics if `self` has a `formatted_body` with a format other than HTML.
189    ///
190    /// [replacement]: https://spec.matrix.org/latest/client-server-api/#event-replacements
191    #[track_caller]
192    pub fn make_replacement(
193        mut self,
194        metadata: impl Into<ReplacementMetadata>,
195    ) -> RoomMessageEventContent {
196        let metadata = metadata.into();
197
198        let mentions = self.mentions.take();
199
200        // Only set mentions that were not there before.
201        if let Some(mentions) = &mentions {
202            let new_mentions = metadata
203                .mentions
204                .map(|old_mentions| {
205                    let mut new_mentions = Mentions::new();
206
207                    new_mentions.user_ids = mentions
208                        .user_ids
209                        .iter()
210                        .filter(|u| !old_mentions.user_ids.contains(*u))
211                        .cloned()
212                        .collect();
213
214                    new_mentions.room = mentions.room && !old_mentions.room;
215
216                    new_mentions
217                })
218                .unwrap_or_else(|| mentions.clone());
219
220            self.mentions = Some(new_mentions);
221        }
222
223        // Prepare relates_to with the untouched msgtype.
224        let relates_to = Relation::Replacement(Replacement {
225            event_id: metadata.event_id,
226            new_content: RoomMessageEventContentWithoutRelation {
227                msgtype: self.msgtype.clone(),
228                mentions,
229            },
230        });
231
232        self.msgtype.make_replacement_body();
233
234        let mut content = RoomMessageEventContent::from(self);
235        content.relates_to = Some(relates_to);
236
237        content
238    }
239
240    /// Add the given [mentions] to this event.
241    ///
242    /// If no [`Mentions`] was set on this events, this sets it. Otherwise, this updates the current
243    /// mentions by extending the previous `user_ids` with the new ones, and applies a logical OR to
244    /// the values of `room`.
245    ///
246    /// [mentions]: https://spec.matrix.org/latest/client-server-api/#user-and-room-mentions
247    pub fn add_mentions(mut self, mentions: Mentions) -> Self {
248        self.mentions.get_or_insert_with(Mentions::new).add(mentions);
249        self
250    }
251}
252
253impl From<MessageType> for RoomMessageEventContentWithoutRelation {
254    fn from(msgtype: MessageType) -> Self {
255        Self::new(msgtype)
256    }
257}
258
259impl From<RoomMessageEventContent> for RoomMessageEventContentWithoutRelation {
260    fn from(value: RoomMessageEventContent) -> Self {
261        let RoomMessageEventContent { msgtype, mentions, .. } = value;
262        Self { msgtype, mentions }
263    }
264}
265
266impl From<RoomMessageEventContentWithoutRelation> for RoomMessageEventContent {
267    fn from(value: RoomMessageEventContentWithoutRelation) -> Self {
268        let RoomMessageEventContentWithoutRelation { msgtype, mentions } = value;
269        Self { msgtype, relates_to: None, mentions }
270    }
271}
ruma_events/room/message/without_relation.rs

ruma_events/room/message/
without_relation.rs
