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Show room intro at beginning of visible history
When the user has reached the beginning of visible history in a room, show them a room intro to explain why messages before that point are unavailable and reassure them that the timeline has loaded. Signed-off-by: Robin Townsend <robin@robin.town>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| /* | ||
| Copyright 2020, 2021 The Matrix.org Foundation C.I.C. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| import React, {useContext} from "react"; | ||
| import {EventType} from "matrix-js-sdk/src/@types/event"; | ||
| import {EventTimeline} from "matrix-js-sdk/src/models/event-timeline"; | ||
|
|
||
| import RoomIntro from "./RoomIntro"; | ||
| import MatrixClientContext from "../../../contexts/MatrixClientContext"; | ||
| import RoomContext from "../../../contexts/RoomContext"; | ||
| import DMRoomMap from "../../../utils/DMRoomMap"; | ||
| import {_t} from "../../../languageHandler"; | ||
| import AccessibleButton from "../elements/AccessibleButton"; | ||
| import dis from "../../../dispatcher/dispatcher"; | ||
|
|
||
| const RoomHistoryIntro = () => { | ||
| const cli = useContext(MatrixClientContext); | ||
| const {room, roomId} = useContext(RoomContext); | ||
|
|
||
| const oldState = room.getLiveTimeline().getState(EventTimeline.BACKWARDS); | ||
| const encryptionState = oldState.getStateEvents("m.room.encryption")[0]; | ||
| let historyState = oldState.getStateEvents("m.room.history_visibility")[0]; | ||
| historyState = historyState && historyState.getContent().history_visibility; | ||
|
|
||
| const dmPartner = DMRoomMap.shared().getUserIdForRoomId(roomId); | ||
| if (dmPartner) { | ||
| const member = room?.getMember(dmPartner); | ||
| const displayName = member?.rawDisplayName || dmPartner; | ||
|
|
||
| let caption1; | ||
| if (encryptionState) { | ||
| caption1 = _t("This is the beginning of your visible history with <displayName/>, " | ||
| + "as encrypted messages before this point are unavailable.", {}, { | ||
| displayName: () => <b>{ displayName }</b>, | ||
| }); | ||
| } else if (historyState == "invited") { | ||
| caption1 = _t("This is the beginning of your visible history with <displayName/>, " | ||
| + "as the room's admins have restricted your ability to view messages " | ||
| + "from before you were invited.", {}, { | ||
| displayName: () => <b>{ displayName }</b>, | ||
| }); | ||
| } else if (historyState == "joined") { | ||
| caption1 = _t("This is the beginning of your visible history with <displayName/>, " | ||
| + "as the room's admins have restricted your ability to view messages " | ||
| + "from before you joined.", {}, { | ||
| displayName: () => <b>{ displayName }</b>, | ||
| }); | ||
| } else { | ||
| caption1 = _t("This is the beginning of your visible history with <displayName/>.", {}, { | ||
| displayName: () => <b>{ displayName }</b>, | ||
| }); | ||
| } | ||
|
|
||
| let caption2; | ||
| if ((room.getJoinedMemberCount() + room.getInvitedMemberCount()) === 2) { | ||
| caption2 = _t("Only the two of you are in this conversation, unless either of you invites anyone to join."); | ||
| } | ||
|
|
||
| return <RoomIntro> | ||
| <p>{ caption1 }</p> | ||
| { caption2 && <p>{ caption2 }</p> } | ||
| </RoomIntro>; | ||
| } else { | ||
| const inRoom = room && room.getMyMembership() === "join"; | ||
| const topic = room.currentState.getStateEvents(EventType.RoomTopic, "")?.getContent()?.topic; | ||
| const canAddTopic = inRoom && room.currentState.maySendStateEvent(EventType.RoomTopic, cli.getUserId()); | ||
|
|
||
| const onTopicClick = () => { | ||
| dis.dispatch({ | ||
| action: "open_room_settings", | ||
| room_id: roomId, | ||
| }, true); | ||
| // focus the topic field to help the user find it as it'll gain an outline | ||
| setImmediate(() => { | ||
| window.document.getElementById("profileTopic").focus(); | ||
| }); | ||
| }; | ||
|
|
||
| let topicText; | ||
| if (canAddTopic && topic) { | ||
| topicText = _t("Topic: %(topic)s (<a>edit</a>)", { topic }, { | ||
| a: sub => <AccessibleButton kind="link" onClick={onTopicClick}>{ sub }</AccessibleButton>, | ||
| }); | ||
| } else if (topic) { | ||
| topicText = _t("Topic: %(topic)s ", { topic }); | ||
| } else if (canAddTopic) { | ||
| topicText = _t("<a>Add a topic</a> to help people know what it is about.", {}, { | ||
| a: sub => <AccessibleButton kind="link" onClick={onTopicClick}>{ sub }</AccessibleButton>, | ||
| }); | ||
| } | ||
|
|
||
| let caption; | ||
| if (encryptionState) { | ||
| caption = _t("This is the beginning of your visible history in <roomName/>, " | ||
| + "as encrypted messages before this point are unavailable.", {}, { | ||
| roomName: () => <b>{ room.name }</b>, | ||
| }); | ||
| } else if (historyState == "invited") { | ||
| caption = _t("This is the beginning of your visible history in <roomName/>, " | ||
| + "as the room's admins have restricted your ability to view messages " | ||
| + "from before you were invited.", {}, { | ||
| roomName: () => <b>{ room.name }</b>, | ||
| }); | ||
| } else if (historyState == "joined") { | ||
| caption = _t("This is the beginning of your visible history in <roomName/>, " | ||
| + "as the room's admins have restricted your ability to view messages " | ||
| + "from before you joined.", {}, { | ||
| roomName: () => <b>{ room.name }</b>, | ||
| }); | ||
| } else { | ||
| caption = _t("This is the beginning of your visible history in <roomName/>.", {}, { | ||
| roomName: () => <b>{ room.name }</b>, | ||
| }); | ||
| } | ||
|
|
||
| return <RoomIntro> | ||
| <p>{ caption }</p> | ||
| { topicText && <p>{ topicText }</p> } | ||
| </RoomIntro>; | ||
| } | ||
| }; | ||
|
|
||
| export default RoomHistoryIntro; |
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