98 lines
2.9 KiB
Swift
98 lines
2.9 KiB
Swift
//
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// Swiftfin is subject to the terms of the Mozilla Public
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// License, v2.0. If a copy of the MPL was not distributed with this
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// file, you can obtain one at https://mozilla.org/MPL/2.0/.
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//
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// Copyright (c) 2022 Jellyfin & Jellyfin Contributors
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//
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import Foundation
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import SwiftUI
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extension View {
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@inlinable
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func eraseToAnyView() -> AnyView {
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AnyView(self)
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}
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public func inverseMask<M: View>(_ mask: M) -> some View {
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// exchange foreground and background
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let inversed = mask
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.foregroundColor(.black) // hide foreground
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.background(Color.white) // let the background stand out
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.compositingGroup()
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.luminanceToAlpha()
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return self.mask(inversed)
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}
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// From: https://www.avanderlee.com/swiftui/conditional-view-modifier/
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@ViewBuilder
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@inlinable
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func `if`<Content: View>(_ condition: Bool, transform: (Self) -> Content) -> some View {
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if condition {
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transform(self)
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} else {
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self
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}
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}
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@ViewBuilder
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@inlinable
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func `if`<Content: View>(_ condition: Bool, transformIf: (Self) -> Content, transformElse: (Self) -> Content) -> some View {
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if condition {
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transformIf(self)
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} else {
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transformElse(self)
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}
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}
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func poster(type: PosterType, width: CGFloat) -> some View {
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Group {
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switch type {
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case .portrait:
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self.portraitPoster(width: width)
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case .landscape:
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self.landscapePoster(width: width)
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}
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}
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}
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/// Applies Portrait Poster frame with proper corner radius ratio against the width
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func portraitPoster(width: CGFloat) -> some View {
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self.frame(width: width, height: width * 1.5)
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.cornerRadius((width * 1.5) / 40)
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}
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func landscapePoster(width: CGFloat) -> some View {
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self.frame(width: width, height: width / 1.77)
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.cornerRadius(width / 30)
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}
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@inlinable
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func padding2(_ edges: Edge.Set = .all) -> some View {
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self.padding(edges)
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.padding(edges)
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}
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func scrollViewOffset(_ scrollViewOffset: Binding<CGFloat>) -> some View {
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self.modifier(ScrollViewOffsetModifier(scrollViewOffset: scrollViewOffset))
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}
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func backgroundParallaxHeader<Header: View>(
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_ scrollViewOffset: Binding<CGFloat>,
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height: CGFloat,
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multiplier: CGFloat = 1,
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@ViewBuilder header: @escaping () -> Header
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) -> some View {
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self.modifier(BackgroundParallaxHeaderModifier(scrollViewOffset, height: height, multiplier: multiplier, header: header))
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}
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func bottomEdgeGradient(bottomColor: Color) -> some View {
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self.modifier(BottomEdgeGradientModifier(bottomColor: bottomColor))
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}
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func posterShadow() -> some View {
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self.shadow(radius: 4, y: 2)
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}
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}
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