49 lines
1.7 KiB
Swift
49 lines
1.7 KiB
Swift
//
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// Copyright 2023 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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/// Utility struct to get a theme color by its name
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struct ThemeColorResolver {
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private static var theme: Theme?
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private static var colorsTable: [String: UIColor] = [:]
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private static let queue = DispatchQueue(label: "io.element.ThemeColorResolver.queue", qos: .userInteractive)
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private static func setTheme(theme: Theme) {
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queue.sync {
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guard self.theme?.identifier != theme.identifier else {
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return
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}
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self.theme = theme
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colorsTable = [:]
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let mirror = Mirror(reflecting: theme.colors)
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for child in mirror.children {
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if let colorName = child.label {
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colorsTable[colorName] = child.value as? UIColor
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}
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}
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}
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}
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/// Finds a color by its name in the current theme colors
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/// - Parameter name: color name
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/// - Returns: the corresponding color or nil
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static func getColorByName(_ name: String) -> UIColor? {
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setTheme(theme: ThemeService.shared().theme)
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return colorsTable[name]
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}
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}
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