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add power level room settings

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This commit is contained in:
Henry Hiles 2026-10-22 15:29:02 -04:00
commit b0dd452926
Signed by: Henry-Hiles
SSH key fingerprint: SHA256:VKQUdS31Q90KvX7EkKMHMBpUspcmItAh86a+v7PGiIs
6 changed files with 944 additions and 179 deletions
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27
lib/controllers/members_grouped.dart
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@ -1,44 +1,27 @@
import "package:fast_immutable_collections/fast_immutable_collections.dart";
import "package:flutter_riverpod/flutter_riverpod.dart";
import "package:nexus/controllers/members_by_status.dart";
import "package:nexus/controllers/room_creators.dart";
import "package:nexus/controllers/rooms.dart";
import "package:nexus/controllers/room_power_levels.dart";
import "package:nexus/models/configs/members_by_status.dart";
import "package:nexus/models/content/content.dart";
import "package:nexus/models/content/power_levels.dart";
import "package:nexus/models/event.dart";
class MembersGroupedController(final MembersByStatusConfig config)
extends AsyncNotifier<IList<MapEntry<int?, ISet<Event>>>> {
@override
Future<IList<MapEntry<int?, ISet<Event>>>> build() async {
final room = ref.watch(
RoomsController.provider.select((value) => value[config.roomId]),
final powerLevels = ref.watch(
RoomPowerLevelsController.provider(config.roomId),
);
final roomCreators = room == null
? null
: ref.watch((RoomCreatorsController.provider(room)));
final powerLevelsRowId = room?.state[EventType.powerLevels.type]?[""];
final powerLevelsEvent = powerLevelsRowId == null
? null
: room?.events[powerLevelsRowId];
final content = switch (powerLevelsEvent?.content) {
PowerLevelsContent content => content,
_ => PowerLevelsContent(),
};
final members = await ref.watch(
MembersByStatusController.provider(config).future,
);
return members
.fold<IMap<int?, ISet<Event>>>(.new(), (result, event) {
final groupKey = roomCreators?.contains(event.stateKey!) == true
final groupKey = powerLevels.creators.contains(event.stateKey!)
? null
: content.users[event.stateKey!] ?? content.usersDefault;
: powerLevels.levelOf(event.stateKey!).toInt();
return result.update(
groupKey,

34
lib/controllers/power_level.dart
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@ -1,10 +1,8 @@
import "package:flutter_riverpod/flutter_riverpod.dart";
import "package:nexus/controllers/client_state.dart";
import "package:nexus/controllers/room_creators.dart";
import "package:nexus/controllers/rooms.dart";
import "package:nexus/controllers/room_power_levels.dart";
import "package:nexus/models/configs/power_level.dart";
import "package:nexus/models/content/content.dart";
import "package:nexus/models/content/power_levels.dart";
class PowerLevelController(final PowerLevelConfig config)
extends Notifier<bool> {
@ -17,31 +15,17 @@ class PowerLevelController(final PowerLevelConfig config)
);
}
final room = ref.watch(
RoomsController.provider.select((value) => value[config.roomId]),
final powerLevels = ref.watch(
RoomPowerLevelsController.provider(config.roomId),
);
final roomCreators = room == null
? null
: ref.watch(RoomCreatorsController.provider(room));
final eventRowId = room?.state[EventType.powerLevels.type]?[""];
final event = eventRowId == null ? null : room?.events[eventRowId];
final content = event?.content is PowerLevelsContent
? event!.content
: PowerLevelsContent();
final content = powerLevels.content;
final user = ref.watch(
ClientStateController.provider.select((value) => value?.userId),
);
if (user == null || content is! PowerLevelsContent) return false;
if (user == null) return false;
double powerLevelOf(String userId) => roomCreators?.contains(userId) == true
? double.infinity
: (content.users[userId] ?? content.usersDefault).toDouble();
final userLevel = powerLevelOf(user);
final userLevel = powerLevels.levelOf(user);
return switch (config) {
EventPowerLevelConfig(:final eventType) =>
@ -52,10 +36,12 @@ class PowerLevelController(final PowerLevelConfig config)
.invite => userLevel >= content.invite,
.kick =>
userLevel >= content.kick && userLevel > powerLevelOf(targetUser),
userLevel >= content.kick &&
userLevel > powerLevels.levelOf(targetUser),
.ban =>
userLevel >= content.ban && userLevel > powerLevelOf(targetUser),
userLevel >= content.ban &&
userLevel > powerLevels.levelOf(targetUser),
.unban => userLevel >= content.ban,
},

20
lib/controllers/power_levels_saving.dart Normal file
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@ -0,0 +1,20 @@
import "package:flutter_riverpod/flutter_riverpod.dart";
class PowerLevelsSavingController(final String roomId) extends Notifier<bool> {
@override
bool build() => false;
Future<void> run(Future<void> Function() action) async {
state = true;
try {
await action();
} finally {
if (ref.mounted) state = false;
}
}
static final provider = NotifierProvider.autoDispose
.family<PowerLevelsSavingController, bool, String>(
PowerLevelsSavingController.new,
);
}

30
lib/controllers/room_creators.dart
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@ -1,30 +0,0 @@
import "package:fast_immutable_collections/fast_immutable_collections.dart";
import "package:flutter_riverpod/flutter_riverpod.dart";
import "package:nexus/models/content/content.dart";
import "package:nexus/models/content/create.dart";
import "package:nexus/models/room.dart";
class RoomCreatorsController(final Room room) extends Notifier<IList<String>> {
@override
IList<String> build() {
final createRowId = room.state[EventType.create.type]?[""];
final createEvent = createRowId == null ? null : room.events[createRowId];
if (createEvent == null) return .new();
final createEventContent = switch (createEvent.content) {
CreateContent content => content,
_ => null,
};
return switch (createEventContent?.additionalCreatorIds) {
IList<String> creators => creators.add(createEvent.sender),
_ => .new([createEvent.sender]),
};
}
static final provider =
NotifierProvider.family<RoomCreatorsController, IList<String>, Room>(
RoomCreatorsController.new,
);
}

59
lib/controllers/room_power_levels.dart Normal file
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@ -0,0 +1,59 @@
import "package:fast_immutable_collections/fast_immutable_collections.dart";
import "package:flutter_riverpod/flutter_riverpod.dart";
import "package:nexus/controllers/rooms.dart";
import "package:nexus/models/content/content.dart";
import "package:nexus/models/content/create.dart";
import "package:nexus/models/content/power_levels.dart";
import "package:nexus/models/event.dart";
import "package:nexus/models/room_power_levels.dart";
class RoomPowerLevelsController(final String roomId)
extends Notifier<RoomPowerLevels> {
@override
RoomPowerLevels build() {
final room = ref.watch(
RoomsController.provider.select((rooms) => rooms[roomId]),
);
Event? stateEvent(EventType type) => switch (room?.state[type.type]?[""]) {
final rowId? => room?.events[rowId],
null => null,
};
final createEvent = stateEvent(.create);
final create = switch (createEvent?.content) {
final CreateContent content => content,
_ => null,
};
// Creators only outrank everyone from room version 12, earlier ones just have a power level
final creatorsPrivileged =
(int.tryParse(create?.roomVersion ?? "") ?? 0) >= 12;
return .new(
content: switch (stateEvent(.powerLevels)?.content) {
final PowerLevelsContent content => content,
// Until there are power levels, creators have 100
_ => PowerLevelsContent(
users: switch (createEvent) {
final createEvent? when !creatorsPrivileged => .new({
createEvent.sender: 100,
}),
_ => const .empty(),
},
),
},
creators: switch (createEvent) {
final createEvent? when creatorsPrivileged =>
(create?.additionalCreatorIds ?? const .empty())
.add(createEvent.sender)
.toISet(),
_ => const .empty(),
},
);
}
static final provider = NotifierProvider.autoDispose
.family<RoomPowerLevelsController, RoomPowerLevels, String>(
RoomPowerLevelsController.new,
);
}

331
lib/controllers/room_settings_sections.dart
View file

@ -3,8 +3,11 @@ import "package:flutter_hooks/flutter_hooks.dart";
import "package:hooks_riverpod/hooks_riverpod.dart";
import "package:material_ui/material_ui.dart";
import "package:nexus/controllers/client.dart";
import "package:nexus/controllers/client_state.dart";
import "package:nexus/controllers/local_aliases.dart";
import "package:nexus/controllers/power_level.dart";
import "package:nexus/controllers/power_levels_saving.dart";
import "package:nexus/controllers/room_power_levels.dart";
import "package:nexus/controllers/rooms.dart";
import "package:nexus/controllers/space_edges.dart";
import "package:nexus/helpers/extensions/show_adaptive_sheet.dart";
@ -15,18 +18,26 @@ import "package:nexus/models/content/avatar.dart";
import "package:nexus/models/content/canonical_alias.dart";
import "package:nexus/models/content/content.dart";
import "package:nexus/models/content/create.dart";
import "package:nexus/models/content/encryption.dart";
import "package:nexus/models/content/history_visibility.dart";
import "package:nexus/models/content/join_rules.dart";
import "package:nexus/models/content/membership.dart";
import "package:nexus/models/content/message.dart";
import "package:nexus/models/content/name.dart";
import "package:nexus/models/content/power_levels.dart";
import "package:nexus/models/content/topic.dart";
import "package:nexus/models/join_rule.dart";
import "package:nexus/models/setting.dart";
import "package:nexus/models/settings_category.dart";
import "package:nexus/widgets/avatar_or_hash.dart";
import "package:nexus/widgets/divider_text.dart";
import "package:nexus/widgets/settings/add_users_power_level_sheet.dart";
import "package:nexus/widgets/settings/aliases_sheet.dart";
import "package:nexus/widgets/settings/allowed_rooms_sheet.dart";
import "package:nexus/widgets/settings/dialog_list_tile.dart";
import "package:nexus/widgets/settings/local_aliases_sheet.dart";
import "package:nexus/widgets/settings/power_level_entry_sheet.dart";
import "package:nexus/widgets/settings/power_level_tile.dart";
import "package:nexus/widgets/settings/text_setting_tile.dart";
class RoomSettingsSectionsController(final String roomId)
@ -69,6 +80,9 @@ class RoomSettingsSectionsController(final String roomId)
final canSetJoinRules = canSet(.joinRules);
final canSetHistoryVisibility = canSet(.historyVisibility);
final canSetAliases = canSet(.canonicalAlias);
final canSetPowerLevels =
canSet(.powerLevels) &&
!ref.watch(PowerLevelsSavingController.provider(roomId));
final joinRules = switch (stateContent(.joinRules)) {
final JoinRulesContent content => content,
@ -125,6 +139,19 @@ class RoomSettingsSectionsController(final String roomId)
.nonNulls
.toISet();
final roomPowerLevels = ref.watch(
RoomPowerLevelsController.provider(roomId),
);
final powerLevels = roomPowerLevels.content;
final userId = ref.watch(
ClientStateController.provider.select((state) => state?.userId),
);
final ownLevel = userId == null ? 0.0 : roomPowerLevels.levelOf(userId);
// Encrypted rooms send messages as m.room.encrypted, so that's what limits them
final messageType = stateContent(.encryption) is EncryptionContent
? EventType.encrypted
: EventType.message;
Future<void> setState(EventType type, Content content) async {
final eventId = await client.setState(
.new(roomId: roomId, type: type.type, stateKey: "", content: content),
@ -167,6 +194,108 @@ class RoomSettingsSectionsController(final String roomId)
),
);
Setting header(String title, String description, IconData icon) => .new(
title: title,
description: description,
icon: icon,
builder: (title, _, _) => Padding(
padding: .symmetric(horizontal: 16),
child: DividerText(title),
),
);
Future<void> setPowerLevels(PowerLevelsContent content) => ref
.read(PowerLevelsSavingController.provider(roomId).notifier)
.run(() => setState(.powerLevels, content).onError(showError));
// Event types with their own level that don't have a setting of their own
final listedEvents = [
messageType,
EventType.sticker,
EventType.reaction,
EventType.pinnedEvents,
].map((type) => type.type).toISet();
final otherEvents = powerLevels.events.entries
.where((entry) => !listedEvents.contains(entry.key))
.toIList()
.sort((a, b) => a.key.compareTo(b.key));
// Users with their own level, the highest first
final users = powerLevels.users.entries.toIList().sort(
(a, b) => switch (b.value.compareTo(a.value)) {
0 => a.key.compareTo(b.key),
final order => order,
},
);
MembershipContent? memberOf(String userId) =>
switch (room?.state[EventType.membership.type]?[userId]) {
final rowId? => switch (room?.events[rowId]?.content) {
final MembershipContent content => content,
_ => null,
},
null => null,
};
/// A tile opening a [sheet] to add entries, like event types or users, with their own power level.
Setting addSetting({
required String title,
required String description,
required Widget Function(void Function(PowerLevelsContent content) save)
sheet,
}) => .new(
title: title,
description: description,
icon: Icons.add,
builder: (title, description, icon) => Builder(
builder: (context) => ListTile(
enabled: canSetPowerLevels,
leading: Icon(icon),
title: Text(title),
subtitle: Text(description),
onTap: () => context.showAdaptiveSheet((_) => sheet(setPowerLevels)),
),
),
);
Setting powerLevelSetting({
required String title,
required String description,
required IconData icon,
required int value,
required PowerLevelsContent Function(int level) update,
}) => .new(
title: title,
description: description,
icon: icon,
builder: (title, description, icon) => PowerLevelTile(
leading: Icon(icon),
title: title,
description: description,
value: value,
ownLevel: ownLevel,
onChanged: canSetPowerLevels
? (level) => setPowerLevels(update(level))
: null,
),
);
/// A setting for the level needed to send [type], which otherwise needs [fallback].
Setting eventSetting(
EventType type, {
required String title,
required String description,
required IconData icon,
required int fallback,
}) => powerLevelSetting(
title: title,
description: description,
icon: icon,
value: powerLevels.events[type.type] ?? fallback,
update: (level) => powerLevels.copyWith(
events: powerLevels.events.add(type.type, level),
),
);
return .new({
"Room": .new([
.new(
@ -473,6 +602,208 @@ class RoomSettingsSectionsController(final String roomId)
),
]),
),
.new(
title: "Permissions",
icon: Icons.admin_panel_settings,
settings: .new([
powerLevelSetting(
title: "Default Power Level",
description: "The power level of users who aren't given one.",
icon: Icons.person,
value: powerLevels.usersDefault,
update: (level) => powerLevels.copyWith(usersDefault: level),
),
header("Users", "Power levels of specific users.", Icons.group),
...users.map((entry) {
final member = memberOf(entry.key);
// Others can only be changed if they're below you, but your own level can be lowered
final canChange =
canSetPowerLevels &&
(entry.key == userId || entry.value < ownLevel);
return Setting(
title: member?.displayName ?? entry.key,
description: entry.key,
icon: Icons.person,
builder: (title, description, _) => PowerLevelTile(
leading: AvatarOrHash(
member?.avatarUrl,
title,
dimension: 40,
),
title: title,
description: description,
value: entry.value,
ownLevel: ownLevel,
onChanged: canChange
? (level) => setPowerLevels(
powerLevels.copyWith(
users: powerLevels.users.add(entry.key, level),
),
)
: null,
onRemoved: canChange
? () => setPowerLevels(
powerLevels.copyWith(
users: powerLevels.users.remove(entry.key),
),
)
: null,
removeConfirmation: entry.key == userId
? "Remove your own power level? You'll have the default of ${powerLevels.usersDefault}, and won't be able to raise it again yourself."
: "Remove $title's power level? They'll have the default of ${powerLevels.usersDefault}.",
),
);
}),
addSetting(
title: "Add Users",
description: "Give users their own power level.",
sheet: (save) => AddUsersPowerLevelSheet(
roomId: roomId,
existing: powerLevels.users.keys.toISet().union(
roomPowerLevels.creators,
),
ownLevel: ownLevel,
onSave: (users, level) => save(
powerLevels.copyWith(
users: powerLevels.users.addEntries(
users.map((user) => MapEntry(user, level)),
),
),
),
),
),
header(
"Regular Events",
"Power levels needed to send messages and other timeline events.",
Icons.chat,
),
eventSetting(
messageType,
title: "Send Messages",
description: "The power level needed to send messages.",
icon: Icons.message,
fallback: powerLevels.eventsDefault,
),
eventSetting(
.sticker,
title: "Send Stickers",
description: "The power level needed to send stickers.",
icon: Icons.sticky_note_2,
fallback: powerLevels.eventsDefault,
),
eventSetting(
.reaction,
title: "Send Reactions",
description: "The power level needed to react to messages.",
icon: Icons.add_reaction,
fallback: powerLevels.eventsDefault,
),
powerLevelSetting(
title: "Default for Events",
description:
"The power level needed to send events without their own.",
icon: Icons.more_horiz,
value: powerLevels.eventsDefault,
update: (level) => powerLevels.copyWith(eventsDefault: level),
),
header(
"State Events",
"Power levels needed to manage members and change the room's state.",
Icons.settings,
),
eventSetting(
.pinnedEvents,
title: "Pin Messages",
description: "The power level needed to pin messages.",
icon: Icons.push_pin,
fallback: powerLevels.stateDefault,
),
powerLevelSetting(
title: "Invite Users",
description: "The power level needed to invite users.",
icon: Icons.person_add,
value: powerLevels.invite,
update: (level) => powerLevels.copyWith(invite: level),
),
powerLevelSetting(
title: "Kick Users",
description: "The power level needed to kick users.",
icon: Icons.sports_martial_arts,
value: powerLevels.kick,
update: (level) => powerLevels.copyWith(kick: level),
),
powerLevelSetting(
title: "Ban Users",
description: "The power level needed to ban and unban users.",
icon: Icons.gavel,
value: powerLevels.ban,
update: (level) => powerLevels.copyWith(ban: level),
),
powerLevelSetting(
title: "Delete Others' Messages",
description: "The power level needed to remove others' messages.",
icon: Icons.delete,
value: powerLevels.redact,
update: (level) => powerLevels.copyWith(redact: level),
),
powerLevelSetting(
title: "Default for State Events",
description: "The power level needed to send state events without their own.",
icon: Icons.tune,
value: powerLevels.stateDefault,
update: (level) => powerLevels.copyWith(stateDefault: level),
),
header(
"Other Events",
"Power levels for specific event types.",
Icons.code,
),
...otherEvents.map(
(entry) => Setting(
title: entry.key,
description: "The power level needed to send this event.",
icon: Icons.code,
builder: (title, _, icon) => PowerLevelTile(
leading: Icon(icon),
title: title,
description: null,
value: entry.value,
ownLevel: ownLevel,
onChanged: canSetPowerLevels
? (level) => setPowerLevels(
powerLevels.copyWith(
events: powerLevels.events.add(entry.key, level),
),
)
: null,
onRemoved: canSetPowerLevels
? () => setPowerLevels(
powerLevels.copyWith(
events: powerLevels.events.remove(entry.key),
),
)
: null,
),
),
),
addSetting(
title: "Add Event",
description: "Give an event type its own power level.",
sheet: (save) => PowerLevelEntrySheet(
title: "Add Event",
keyLabel: "Event type",
keyHint: "m.room.name",
ownLevel: ownLevel,
onSave: (type, level) => save(
powerLevels.copyWith(
events: powerLevels.events.add(type, level),
),
),
),
),
]),
),
]),
});
}