mirror of
https://github.com/vector-im/element-ios.git
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176 lines
6.2 KiB
Swift
176 lines
6.2 KiB
Swift
//
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// Copyright 2021 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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import Combine
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protocol MatrixItemChooserProcessorProtocol {
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var dataType: MatrixItemChooserType { get }
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func computeSelection(withIds itemsIds:[String], completion: @escaping (Result<Void, Error>) -> Void)
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func isItemIncluded(_ item: (MatrixListItemData)) -> Bool
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}
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@available(iOS 14.0, *)
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class MatrixItemChooserService: MatrixItemChooserServiceProtocol {
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// MARK: - Properties
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// MARK: Private
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private let processingQueue = DispatchQueue(label: "io.element.element.MatrixItemChooserService.processingQueue")
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private let completionQueue = DispatchQueue.main
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private let session: MXSession
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private let items: [MatrixListItemData]
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private var filteredItems: [MatrixListItemData] {
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didSet {
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itemsSubject.send(filteredItems)
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}
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}
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private var selectedItemIds: Set<String>
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private let itemsProcessor: MatrixItemChooserProcessorProtocol?
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// MARK: Public
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private(set) var type: MatrixItemChooserType
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private(set) var itemsSubject: CurrentValueSubject<[MatrixListItemData], Never>
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private(set) var selectedItemIdsSubject: CurrentValueSubject<Set<String>, Never>
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var searchText: String = "" {
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didSet {
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refresh()
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}
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}
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// MARK: - Setup
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init(session: MXSession, selectedItemIds: [String], itemsProcessor: MatrixItemChooserProcessorProtocol?) {
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self.session = session
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self.type = itemsProcessor?.dataType ?? .room
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switch type {
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case .people:
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self.items = session.users().map { user in
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MatrixListItemData(mxUser: user)
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}
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case .room:
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self.items = session.rooms.compactMap { room in
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if room.summary.roomType == .space {
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return nil
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}
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return MatrixListItemData(mxRoom: room, spaceService: session.spaceService)
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}
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}
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self.itemsSubject = CurrentValueSubject(self.items)
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self.filteredItems = []
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self.selectedItemIds = Set(selectedItemIds)
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self.selectedItemIdsSubject = CurrentValueSubject(self.selectedItemIds)
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self.itemsProcessor = itemsProcessor
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refresh()
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}
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// MARK: - Public
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func reverseSelectionForItem(withId itemId: String) {
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if selectedItemIds.contains(itemId) {
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selectedItemIds.remove(itemId)
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} else {
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selectedItemIds.insert(itemId)
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}
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selectedItemIdsSubject.send(selectedItemIds)
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}
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func processSelection(completion: @escaping (Result<Void, Error>) -> Void) {
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guard let selectionProcessor = self.itemsProcessor else {
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completion(Result.success(()))
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return
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}
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selectionProcessor.computeSelection(withIds: Array(selectedItemIds), completion: completion)
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}
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func refresh() {
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self.processingQueue.async { [weak self] in
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guard let self = self else { return }
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let filteredItems = self.filter(items: self.items)
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self.completionQueue.async {
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self.filteredItems = filteredItems
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}
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}
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}
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// MARK: - Private
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private func filter(items: [MatrixListItemData]) -> [MatrixListItemData] {
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if searchText.isEmpty {
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if let selectionProcessor = self.itemsProcessor {
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return items.filter {
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selectionProcessor.isItemIncluded($0)
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}
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} else {
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return items
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}
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} else {
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let lowercasedSearchText = self.searchText.lowercased()
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if let selectionProcessor = self.itemsProcessor {
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return items.filter {
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selectionProcessor.isItemIncluded($0) && ($0.id.lowercased().contains(lowercasedSearchText) || ($0.displayName ?? "").lowercased().contains(lowercasedSearchText))
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}
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} else {
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return items.filter {
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$0.id.lowercased().contains(lowercasedSearchText) || ($0.displayName ?? "").lowercased().contains(lowercasedSearchText)
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}
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}
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}
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}
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}
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fileprivate extension MatrixListItemData {
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init(mxUser: MXUser) {
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self.init(id: mxUser.userId, avatar: mxUser.avatarData, displayName: mxUser.displayname, detailText: mxUser.userId)
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}
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init(mxRoom: MXRoom, spaceService: MXSpaceService) {
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let parentSapceIds = mxRoom.summary.parentSpaceIds ?? Set()
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let detailText: String?
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if parentSapceIds.isEmpty {
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detailText = nil
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} else {
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if let spaceName = spaceService.getSpace(withId: parentSapceIds.first ?? "")?.summary?.displayname {
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let count = parentSapceIds.count - 1
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switch count {
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case 0:
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detailText = VectorL10n.spacesCreationInSpacename(spaceName)
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case 1:
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detailText = VectorL10n.spacesCreationInSpacenamePlusOne(spaceName)
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default:
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detailText = VectorL10n.spacesCreationInSpacenamePlusMany(spaceName, "\(count)")
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}
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} else {
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if parentSapceIds.count > 1 {
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detailText = VectorL10n.spacesCreationInManySpaces("\(parentSapceIds.count)")
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} else {
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detailText = VectorL10n.spacesCreationInOneSpace
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}
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}
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}
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self.init(id: mxRoom.roomId, avatar: mxRoom.avatarData, displayName: mxRoom.summary.displayname, detailText: detailText)
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}
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}
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