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Merge pull request #3972 from matrix-org/jryans/missing-timeline-uisi

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Check for timeline in pre-join UISI path
This commit is contained in:
J. Ryan Stinnett 2020-01-29 14:04:45 +00:00 committed by GitHub
commit c0e88bede9
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1 changed files with 30 additions and 18 deletions
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48
src/components/structures/TimelinePanel.js
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@ -1171,28 +1171,40 @@ const TimelinePanel = createReactClass({
// get the user's membership at the last event by getting the timeline
// that the event belongs to, and traversing the timeline looking for
// that event, while keeping track of the user's membership
const lastEvent = events[events.length - 1];
const timeline = room.getTimelineForEvent(lastEvent.getId());
const userMembershipEvent =
timeline.getState(EventTimeline.FORWARDS).getMember(userId);
let userMembership = userMembershipEvent
? userMembershipEvent.membership : "leave";
const timelineEvents = timeline.getEvents();
for (let i = timelineEvents.length - 1; i >= 0; i--) {
const event = timelineEvents[i];
if (event.getId() === lastEvent.getId()) {
// found the last event, so we can stop looking through the timeline
break;
} else if (event.getStateKey() === userId
&& event.getType() === "m.room.member") {
const prevContent = event.getPrevContent();
userMembership = prevContent.membership || "leave";
let i;
let userMembership = "leave";
for (i = events.length - 1; i >= 0; i--) {
const timeline = room.getTimelineForEvent(events[i].getId());
if (!timeline) {
// Somehow, it seems to be possible for live events to not have
// a timeline, even though that should not happen. :(
// https://github.com/vector-im/riot-web/issues/12120
console.warn(
`Event ${events[i].getId()} in room ${room.roomId} is live, ` +
`but it does not have a timeline`,
);
continue;
}
const userMembershipEvent =
timeline.getState(EventTimeline.FORWARDS).getMember(userId);
userMembership = userMembershipEvent ? userMembershipEvent.membership : "leave";
const timelineEvents = timeline.getEvents();
for (let j = timelineEvents.length - 1; j >= 0; j--) {
const event = timelineEvents[j];
if (event.getId() === events[i].getId()) {
break;
} else if (event.getStateKey() === userId
&& event.getType() === "m.room.member") {
const prevContent = event.getPrevContent();
userMembership = prevContent.membership || "leave";
}
}
break;
}
// now go through the events that we have and find the first undecryptable
// now go through the rest of the events and find the first undecryptable
// one that was sent when the user wasn't in the room
for (let i = events.length - 1; i >= 0; i--) {
for (; i >= 0; i--) {
const event = events[i];
if (event.getStateKey() === userId
&& event.getType() === "m.room.member") {