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Room List Filters implementation (#2423)
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119 changes: 119 additions & 0 deletions
119
ElementX/Sources/Screens/HomeScreen/View/Filters/RoomListFilterModels.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| // | ||
| // Copyright 2024 New Vector Ltd | ||
| // | ||
| // 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. | ||
| // | ||
|
|
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| import Combine | ||
| import Foundation | ||
|
|
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| import MatrixRustSDK | ||
|
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| enum RoomListFilter: Int, CaseIterable, Identifiable { | ||
| var id: Int { | ||
| rawValue | ||
| } | ||
|
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| case people | ||
| case rooms | ||
| case unreads | ||
| case favourites | ||
|
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| var localizedName: String { | ||
| switch self { | ||
| case .people: | ||
| return L10n.screenRoomlistFilterPeople | ||
| case .rooms: | ||
| return L10n.screenRoomlistFilterRooms | ||
| case .unreads: | ||
| return L10n.screenRoomlistFilterUnreads | ||
| case .favourites: | ||
| return L10n.screenRoomlistFilterFavourites | ||
| } | ||
| } | ||
|
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| var incompatibleFilter: RoomListFilter? { | ||
| switch self { | ||
| case .people: | ||
| return .rooms | ||
| case .rooms: | ||
| return .people | ||
| case .unreads: | ||
| return nil | ||
| case .favourites: | ||
| // When we will have Low Priority we may need to return it here | ||
| return nil | ||
| } | ||
| } | ||
|
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| var rustFilter: RoomListEntriesDynamicFilterKind? { | ||
| switch self { | ||
| case .people: | ||
| return .category(expect: .people) | ||
| case .rooms: | ||
| return .category(expect: .group) | ||
| case .unreads: | ||
| return .unread | ||
| case .favourites: | ||
| // Not implemented yet | ||
| return nil | ||
| } | ||
| } | ||
| } | ||
|
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| final class RoomListFiltersState: ObservableObject { | ||
| @Published private(set) var activeFilters: Set<RoomListFilter> | ||
|
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| init(activeFilters: Set<RoomListFilter> = []) { | ||
| self.activeFilters = activeFilters | ||
| } | ||
|
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| var sortedActiveFilters: [RoomListFilter] { | ||
| activeFilters.sorted(by: { $0.rawValue < $1.rawValue }) | ||
| } | ||
|
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| var availableFilters: [RoomListFilter] { | ||
| var availableFilters = Set(RoomListFilter.allCases) | ||
| for filter in activeFilters { | ||
| availableFilters.remove(filter) | ||
| if let complementaryFilter = filter.incompatibleFilter { | ||
| availableFilters.remove(complementaryFilter) | ||
| } | ||
| } | ||
| return availableFilters.sorted(by: { $0.rawValue < $1.rawValue }) | ||
| } | ||
|
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| var isFiltering: Bool { | ||
| !activeFilters.isEmpty | ||
| } | ||
|
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| func activateFilter(_ filter: RoomListFilter) { | ||
| if let incompatibleFilter = filter.incompatibleFilter, | ||
| activeFilters.contains(incompatibleFilter) { | ||
| fatalError("[RoomListFiltersState] adding mutually exclusive filters is not allowed") | ||
| } | ||
| activeFilters.insert(filter) | ||
| } | ||
|
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| func deactivateFilter(_ filter: RoomListFilter) { | ||
| activeFilters.remove(filter) | ||
| } | ||
|
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| func clearFilters() { | ||
| activeFilters.removeAll() | ||
| } | ||
|
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| func isFilterActive(_ filter: RoomListFilter) -> Bool { | ||
| activeFilters.contains(filter) | ||
| } | ||
| } |
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