811f02962d
* Toggle emojis in the EmojiPickerScreenViewModel. * Send locations in the StaticLocationScreen. * Send polls in the PollFormScreen.
81 lines
3.3 KiB
Swift
81 lines
3.3 KiB
Swift
//
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// Copyright 2022-2024 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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// Please see LICENSE files in the repository root for full details.
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//
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import Combine
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import SwiftUI
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typealias EmojiPickerScreenViewModelType = StateStoreViewModelV2<EmojiPickerScreenViewState, EmojiPickerScreenViewAction>
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class EmojiPickerScreenViewModel: EmojiPickerScreenViewModelType, EmojiPickerScreenViewModelProtocol {
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private let itemID: TimelineItemIdentifier
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private let emojiProvider: EmojiProviderProtocol
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private let timelineController: TimelineControllerProtocol
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private var actionsSubject: PassthroughSubject<EmojiPickerScreenViewModelAction, Never> = .init()
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var actions: AnyPublisher<EmojiPickerScreenViewModelAction, Never> {
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actionsSubject.eraseToAnyPublisher()
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}
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init(itemID: TimelineItemIdentifier, selectedEmojis: Set<String>, emojiProvider: EmojiProviderProtocol, timelineController: TimelineControllerProtocol) {
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let initialViewState = EmojiPickerScreenViewState(categories: [], selectedEmojis: selectedEmojis)
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self.itemID = itemID
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self.emojiProvider = emojiProvider
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self.timelineController = timelineController
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super.init(initialViewState: initialViewState)
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loadEmojis()
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}
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// MARK: - Public
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override func process(viewAction: EmojiPickerScreenViewAction) {
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switch viewAction {
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case let .search(searchString: searchString):
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Task {
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let categories = await emojiProvider.categories(searchString: searchString)
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state.categories = convert(emojiCategories: categories)
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}
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case let .emojiTapped(emoji: emoji):
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Task { await selectEmoji(emoji) }
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case .dismiss:
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actionsSubject.send(.dismiss)
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}
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}
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// MARK: - Private
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private func loadEmojis() {
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Task(priority: .userInitiated) { [weak self] in
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guard let self else { return }
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let categories = await self.emojiProvider.categories(searchString: nil)
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self.state.categories = convert(emojiCategories: categories)
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}
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}
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private func convert(emojiCategories: [EmojiCategory]) -> [EmojiPickerEmojiCategoryViewData] {
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emojiCategories.compactMap { emojiCategory in
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let emojisViewData: [EmojiPickerEmojiViewData] = emojiCategory.emojis.compactMap { emojiItem in
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EmojiPickerEmojiViewData(id: emojiItem.id, value: emojiItem.unicode)
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}
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return EmojiPickerEmojiCategoryViewData(id: emojiCategory.id, emojis: emojisViewData)
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}
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}
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private func selectEmoji(_ emoji: EmojiPickerEmojiViewData) async {
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MXLog.debug("Selected \(emoji) for \(itemID)")
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emojiProvider.markEmojiAsFrequentlyUsed(emoji.value)
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guard case let .event(_, eventOrTransactionID) = itemID else { fatalError("Attempted to react to a virtual item.") }
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// There aren't any local echoes when the toggle redacts, so dismiss the screen early
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// until we have them: https://github.com/matrix-org/matrix-rust-sdk/issues/4162
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actionsSubject.send(.dismiss)
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await timelineController.toggleReaction(emoji.value, to: eventOrTransactionID)
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}
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}
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