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Add leave room warning for last admin

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If the last room administrator leaves a room, other users cannot
gain admin privilges anymore, leaving the room in an unmoderable
state. To help in avoiding this scenario without actually preventing
an admin from leaving the room if they really want, this commit
adds a new warning message.

Attempts to help with: https://github.com/vector-im/element-web/issues/2855

Signed-off-by: Arne Wilken arnepokemon@yahoo.de
This commit is contained in:
Arnei 2022-10-19 12:51:31 +02:00
parent 877c95df8f
commit 2f4fac0f37
3 changed files with 36 additions and 0 deletions
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24
src/components/structures/MatrixChat.tsx
View file

@ -138,6 +138,7 @@ import { UseCaseSelection } from '../views/elements/UseCaseSelection';
import { ValidatedServerConfig } from '../../utils/ValidatedServerConfig';
import { isLocalRoom } from '../../utils/localRoom/isLocalRoom';
import { viewUserDeviceSettings } from '../../actions/handlers/viewUserDeviceSettings';
import { isNumberArray } from '../../utils/TypeUtils';
// legacy export
export { default as Views } from "../../Views";
@ -1125,6 +1126,29 @@ export default class MatrixChat extends React.PureComponent<IProps, IState> {
));
}
}
const client = MatrixClientPeg.get();
const plEvent = roomToLeave.currentState.getStateEvents(EventType.RoomPowerLevels, '');
const plContent = plEvent ? (plEvent.getContent() || {}) : {};
const userLevels = plContent.users || {};
const currentUserLevel = userLevels[client.getUserId()];
const userLevelValues = Object.values(userLevels);
if (isNumberArray(userLevelValues)) {
const maxUserLevel = Math.max(...userLevelValues);
// If the user is the only user with highest power level
if (maxUserLevel === currentUserLevel &&
userLevelValues.lastIndexOf(maxUserLevel) == userLevelValues.indexOf(maxUserLevel)) {
warnings.push((
<span className="warning" key="last_admin_warning">
{ ' '/* Whitespace, otherwise the sentences get smashed together */ }
{ _t("You are the sole person with the highest role in this room. " +
"If you leave, the room could become unmoderable. Consider giving " +
"another user your role.") }
</span>
));
}
}
return warnings;
}