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Cache e2eStatus to avoid concerning unencrypted flicker when changing rooms (#12606)

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* Cache e2eStatus to avoid concerning unencrypted flicker when changing rooms

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Update src/components/structures/RoomView.tsx

---------

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
This commit is contained in:
Michael Telatynski 2024-06-13 17:25:44 +01:00 committed by GitHub
parent 347229be60
commit 24e3e08391
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1 changed files with 12 additions and 4 deletions
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14
src/components/structures/RoomView.tsx
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@ -400,6 +400,10 @@ function LocalRoomCreateLoader(props: ILocalRoomCreateLoaderProps): ReactElement
}
export class RoomView extends React.Component<IRoomProps, IRoomState> {
// We cache the latest computed e2eStatus per room to show as soon as we switch rooms otherwise defaulting to
// unencrypted causes a flicker which can yield confusion/concern in a larger room.
private static e2eStatusCache = new Map<string, E2EStatus>();
private readonly askToJoinEnabled: boolean;
private readonly dispatcherRef: string;
private settingWatchers: string[];
@ -1530,15 +1534,19 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
// If crypto is not currently enabled, we aren't tracking devices at all,
// so we don't know what the answer is. Let's error on the safe side and show
// a warning for this case.
let e2eStatus = E2EStatus.Warning;
let e2eStatus = RoomView.e2eStatusCache.get(room.roomId) ?? E2EStatus.Warning;
// set the state immediately then update, so we don't scare the user into thinking the room is unencrypted
this.setState({ e2eStatus });
if (this.context.client.isCryptoEnabled()) {
this.setState({ e2eStatus: E2EStatus.Normal });
/* At this point, the user has encryption on and cross-signing on */
e2eStatus = await shieldStatusForRoom(this.context.client, room);
}
RoomView.e2eStatusCache.set(room.roomId, e2eStatus);
if (this.unmounted) return;
this.setState({ e2eStatus });
}
}
private onUrlPreviewsEnabledChange = (): void => {
if (this.state.room) {