77 lines
2.5 KiB
Swift
77 lines
2.5 KiB
Swift
//
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// Copyright 2022 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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public extension Bundle {
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/// The top-level bundle that contains the entire app.
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static var app: Bundle {
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var bundle = Bundle.main
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if bundle.bundleURL.pathExtension == "appex" {
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// Peel off two directory levels - MY_APP.app/PlugIns/MY_APP_EXTENSION.appex
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let url = bundle.bundleURL.deletingLastPathComponent().deletingLastPathComponent()
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if let otherBundle = Bundle(url: url) {
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bundle = otherBundle
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}
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}
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return bundle
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}
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// MARK: - Localisation
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/// Overrides `Bundle.app.preferredLocalizations` for testing translations.
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static var overrideLocalizations: [String]?
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private static let cacheDispatchQueue = DispatchQueue(label: "io.element.elementx.localization_bundle_cache")
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private static var cachedBundles = [String: Bundle]()
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/// Get an lproj language bundle from the receiver bundle.
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/// - Parameter language: The language to try to load.
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/// - Returns: The lproj bundle if found otherwise nil.
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static func lprojBundle(for language: String) -> Bundle? {
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if let bundle = cachedValue(forKey: language) {
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return bundle
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}
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guard let lprojURL = Bundle.app.url(forResource: language, withExtension: "lproj") else {
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return nil
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}
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let bundle = Bundle(url: lprojURL)
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cacheValue(bundle, forKey: language)
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return bundle
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}
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// MARK: - Private
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private static func cacheValue(_ value: Bundle?, forKey key: String) {
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cacheDispatchQueue.sync {
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cachedBundles[key] = value
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}
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}
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private static func cachedValue(forKey key: String) -> Bundle? {
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var result: Bundle?
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cacheDispatchQueue.sync {
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result = cachedBundles[key]
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}
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return result
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}
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}
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