34 lines
1.1 KiB
Swift
34 lines
1.1 KiB
Swift
// Copyright 2020 Tokamak contributors
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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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import CombineShim
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import JavaScriptKit
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enum ColorSchemeObserver {
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static var publisher = CurrentValueSubject<ColorScheme, Never>(
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.init(matchMediaDarkScheme: matchMediaDarkScheme)
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)
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private static var closure: JSClosure?
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static func observe() {
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let closure = JSClosure {
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publisher.value = .init(matchMediaDarkScheme: $0[0].object!)
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return .undefined
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}
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_ = matchMediaDarkScheme.addEventListener!("change", closure)
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Self.closure = closure
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}
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}
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