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61 lines
2.4 KiB
Markdown
61 lines
2.4 KiB
Markdown
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### User and room mentions
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This module allows users to mention other users and rooms within a room message.
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This is achieved by including a [Matrix URI](/appendices/#uris) in the HTML body of
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an [m.room.message](#mroommessage) event. This module does not have any server-specific
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behaviour to it.
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Mentions apply only to [m.room.message](#mroommessage) events where the `msgtype` is
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`m.text`, `m.emote`, or `m.notice`. The `format` for the event must be
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`org.matrix.custom.html` and therefore requires a `formatted_body`.
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To make a mention, reference the entity being mentioned in the
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`formatted_body` using an anchor, like so:
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```json
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{
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"body": "Hello Alice!",
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"msgtype": "m.text",
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"format": "org.matrix.custom.html",
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"formatted_body": "Hello <a href='https://matrix.to/#/@alice:example.org'>Alice</a>!"
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}
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```
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#### Client behaviour
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In addition to using the appropriate `Matrix URI` for the mention,
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clients should use the following guidelines when making mentions in
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events to be sent:
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- When mentioning users, use the user's potentially ambiguous display
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name for the anchor's text. If the user does not have a display
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name, use the user's ID.
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- When mentioning rooms, use the canonical alias for the room. If the
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room does not have a canonical alias, prefer one of the aliases
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listed on the room. If no alias can be found, fall back to the room
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ID. In all cases, use the alias/room ID being linked to as the
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anchor's text.
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The text component of the anchor should be used in the event's `body`
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where the mention would normally be represented, as shown in the example
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above.
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Clients should display mentions differently from other elements. For
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example, this may be done by changing the background color of the
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mention to indicate that it is different from a normal link.
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If the current user is mentioned in a message (either by a mention as
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defined in this module or by a push rule), the client should show that
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mention differently from other mentions, such as by using a red
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background color to signify to the user that they were mentioned.
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When clicked, the mention should navigate the user to the appropriate
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user or room information.
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{{% boxes/note %}}
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Similar to legacy [matrix.to URLs](/appendices/#matrixto-navigation),
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groups used to be representable by mentions. They follow a similar format
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to room mentions, though using the group ID in both the link and anchor
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text.
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{{% /boxes/note %}} |