Files
letro-ios/DesignKit/Sources/Buttons/ElementCapsuleButtonStyle.swift
Doug b0f235e5dc Stop making previews for light & dark colour schemes. (#345)
Xcode 14 now has preview variants for this.
2022-11-25 17:49:13 +00:00

81 lines
2.5 KiB
Swift

//
// Copyright 2022 New Vector Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
import SwiftUI
public extension ButtonStyle where Self == ElementCapsuleButtonStyle {
/// A button style that uses a capsule shape with a regular appearance.
static var elementCapsule: ElementCapsuleButtonStyle {
ElementCapsuleButtonStyle(isProminent: false)
}
/// A button style that uses a capsule shape with a prominent appearance.
static var elementCapsuleProminent: ElementCapsuleButtonStyle {
ElementCapsuleButtonStyle(isProminent: true)
}
}
public struct ElementCapsuleButtonStyle: ButtonStyle {
let isProminent: Bool
public func makeBody(configuration: Configuration) -> some View {
configuration.label
.padding(7)
.frame(maxWidth: .infinity)
.font(.element.footnote)
.foregroundColor(fontColor)
.multilineTextAlignment(.center)
.background(background)
.opacity(configuration.isPressed ? 0.6 : 1)
}
@ViewBuilder
var background: some View {
if isProminent {
Capsule()
.foregroundColor(Color.element.accent)
} else {
Capsule()
.stroke(Color.element.accent)
}
}
var fontColor: Color {
isProminent ? .element.systemPrimaryBackground : .element.systemPrimaryLabel
}
}
struct ElementCapsuleButtonStyle_Previews: PreviewProvider {
public static var previews: some View {
VStack {
Button("Enabled") { /* preview */ }
.buttonStyle(.elementCapsuleProminent)
Button("Disabled") { /* preview */ }
.buttonStyle(.elementCapsuleProminent)
.disabled(true)
Button("Enabled") { /* preview */ }
.buttonStyle(.elementCapsule)
Button("Disabled") { /* preview */ }
.buttonStyle(.elementCapsule)
.disabled(true)
}
.padding()
}
}