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46 lines
1.7 KiB
Swift
46 lines
1.7 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 SwiftUI
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/// A Modifier to be called from the top-most SwiftUI view before being added to a HostViewController.
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///
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/// Provides any app level configuration the SwiftUI hierarchy might need (E.g. to monitor theme changes).
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@available(iOS 14.0, *)
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struct VectorContentModifier: ViewModifier {
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@ObservedObject private var themePublisher = ThemePublisher.shared
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@Environment(\.layoutDirection) private var defaultLayoutDirection
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/// The layout direction to use, taking into account the build settings. SwiftUI generally
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/// handles RTL well enough, but we match the behaviour used in UIKit to avoid mixed layouts.
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var layoutDirection: LayoutDirection {
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BuildSettings.disableRightToLeftLayout ? .leftToRight : defaultLayoutDirection
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}
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func body(content: Content) -> some View {
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content
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.theme(themePublisher.theme)
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.environment(\.layoutDirection, layoutDirection)
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}
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}
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@available(iOS 14.0, *)
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extension View {
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func vectorContent() -> some View {
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self.modifier(VectorContentModifier())
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}
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}
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